docs: update README

DEVELOPMENT.md

@@ -8,7 +8,7 @@ build         build project into build/forge
 run           run project with test args
 demo          run project with demo mode
 valgrind      valgrind analysis
-clean-release remove autoconf/automake files
+full-clean    remove build files and untracked files
 test-release  try to build release
 release-%     make full release of version %
 release-arch  make arch-linux release package
@@ -124,7 +124,7 @@ make -f Makefile.dev release-arch
   - [x] (clean) static functions at top of files
   - [x] Configurable key codes
   - [x] Monitor improvements
-  - [ ] Ignore some values in auto random
+  - [x] Ignore some values in auto random
   - [x] build without video in
   - [ ] Update README monitor/keymap
   - [x] Auto reconnect midi input

Makefile.dev

@@ -7,7 +7,7 @@ SHELL := /bin/bash
 clean:
 	@rm -rf build
 
-build:
+build/$(TARGET):
 	@mkdir -p build
 	gcc \
 		src/*.h src/*.c \
@@ -25,6 +25,9 @@ build:
 		-o build/$(TARGET) \
 		-g -Og
 
+.PHONY: build
+build: build/$(TARGET)
+
 .PHONY: build-no-video
 build-no-video:
 	@mkdir -p build
@@ -36,7 +39,6 @@ build-no-video:
 		-lm -lGL -lglfw -lasound \
 		-Wall -Wextra \
 		-Wno-format-truncation \
-		-Wno-unused-parameter \
 		-DGLFW_INCLUDE_NONE \
 		-DGLFW_NATIVE_INCLUDE_NONE \
 		-DLOG_USE_COLOR \
@@ -48,26 +50,28 @@ format:
 	clang-format -i src/*
 
 .PHONY: run
-run: build
+run: build/$(TARGET)
 	./build/$(TARGET) $(RUN_ARGS)
 
 .PHONY: sample
-sample: build
+sample: build/$(TARGET)
-	./build/$(TARGET) --project=sample
+	./build/$(TARGET) --project=sample $(RUN_ARGS)
 
 .PHONY: valgrind
-valgrind: build
+valgrind: build/$(TARGET)
 	valgrind \
 		--show-realloc-size-zero=no \
 		--undef-value-errors=no \
 		./build/$(TARGET) $(RUN_ARGS)
 
-.PHONY: clean-release
+.PHONY: full-clean
-clean-release:
+full-clean:
 	git clean -f -x
+	rm -rf */*/.deps
+	rm -rf */.deps
 
 .PHONY: test-release
-test-release: clean clean-release
+test-release: clean full-clean
 	aclocal
 	autoconf
 	automake --add-missing
@@ -77,7 +81,7 @@ test-release: clean clean-release
 	cp $(TARGET)-steel-*.tar.gz build/
 
 .PHONY: release-%
-release-%: clean clean-release
+release-%: clean full-clean
 	git pull origin main
 	sed -i -E "s/[0-9]+\\.[0-9]+\\.[0-9]+/$*/g" configure.ac
 	aclocal

PKGBUILD

@@ -1,12 +1,12 @@
 pkgname=forge-steel
-pkgver=1.1.0
+pkgver=1.2.4
 pkgrel=1
 pkgdesc="Fusion Of Real Time Generative Effects"
 arch=('i686' 'pentium4' 'x86_64' 'arm' 'armv7h' 'armv6h' 'aarch64' 'riscv64')
 depends=('glfw>=1:3', 'v4l-utils>=1.32', 'alsa-lib>=1.2', 'libglvnd>=1.7')
 url="https://git.klemek.fr/klemek/forge-steel"
 source=("${pkgname}-steel-${pkgver}.tar.gz::https://git.klemek.fr/klemek/forge-steel/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.gz")
-sha256sums=('794fb0f170cff19872acfba8a556e2a08c55a78e497ac0b330eca6db65343529')
+sha256sums=('a34c7f8101d8d947e26bee1fa5ab8d87f4292014e5ef17d03eb34fefb387db9e')
 srcdir=build
 backup=("usr/share/${pkgname}")
 

README.md

@@ -1,4 +1,4 @@
-[![](https://git.klemek.fr/klemek/forge-steel/actions/workflows/lint.yml/badge.svg?branch=main&style=flat-square)](https://git.klemek.fr/klemek/forge-steel/actions?workflow=lint.yml) [![](https://git.klemek.fr/klemek/forge-steel/actions/workflows/build.yml/badge.svg?branch=main&style=flat-square)](https://git.klemek.fr/klemek/forge-steel/actions?workflow=build.yml) ![LOC](https://img.shields.io/badge/cloc-3.4k-blue?style=flat-square)
+[![](https://git.klemek.fr/klemek/forge-steel/actions/workflows/lint.yml/badge.svg?branch=main&style=flat-square)](https://git.klemek.fr/klemek/forge-steel/actions?workflow=lint.yml) [![](https://git.klemek.fr/klemek/forge-steel/actions/workflows/build.yml/badge.svg?branch=main&style=flat-square)](https://git.klemek.fr/klemek/forge-steel/actions?workflow=build.yml) ![LOC](https://img.shields.io/badge/cloc-3.6k-blue?style=flat-square)
 
 <!-- omit from toc -->
 # F.O.R.G.E. (Steel)
@@ -133,7 +133,7 @@ make install
 
 ```shell
 git clone --recursive https://git.klemek.fr/klemek/forge-steel
-cd forge
+cd forge-steel
 makepkg -si
 ```
 
@@ -142,11 +142,11 @@ makepkg -si
 
 ```shell
 git clone --recursive https://git.klemek.fr/klemek/forge-steel
-cd forge
+cd forge-steel
 aclocal
 autoconf
 automake --add-missing
-./configure
+./configure --prefix=$HOME/.local
 make
 make install
 ```
@@ -174,9 +174,7 @@ These are configurable in the [`forge_project.cfg`](#forge_projectcfg).
 ### CLI arguments
 
 ```txt
-forge steel-VERSION
+usage: forge [-h] [-v] [-p=PROJECT_PATH] [-c=CFG_FILE] [-hr] [-s=SCREEN] [-m=SCREEN] [-mo] [-w] [-t=TEMPO] [-d] [-ar / -nar] [-arc=CYCLES] [-is=SIZE] [-ls / -nls] [-ss / -nss] [-mr / -nmr] [-tm] [-tf] [--x11] [--wayland] [--cocoa] [--win32] [-as / -nas] [-oma=MAJOR] [-omi=MINOR]
-
-usage: forge [-h] [-v] [-p=PROJECT_PATH] [-c=CFG_FILE] [-hr] [-s=SCREEN] [-m=SCREEN] [-mo] [-w] [-t=TEMPO] [-d] [-ar / -nar] [-arc=CYCLES] [-vi=FILE] [-vs=SIZE] [-vb=COUNT] [-vr / -nvr] [-is=SIZE] [-ls / -nls] [-ss / -nss] [-mr / -nmr] [-tm] [-tf]
 
 Fusion Of Real-time Generative Effects.
 
@@ -195,20 +193,23 @@ options:
   -ar, --auto-random          randomize state every cycle (4 beats)
   -nar, --no-auto-random      do not randomize state (default)
   -arc, --auto-random-cycle   auto random cycle length (default: 4)
-  -vi, --video-in             path to video capture device (multiple allowed)
-  -vb, --video-buffers        number of video buffers to use (default: 2)
-  -vs, --video-size           video capture desired height (default: internal texture height)
-  -vr, --video-reconnect      auto-reconnect video (default)
-  -nvr, --no-video-reconnect  do not auto-reconnect video
   -is, --internal-size        internal texture height (default: 720)
   -ls, --load-state           load saved state (default)
   -nls, --no-load-state       do not load saved state
   -ss, --save-state           save state (default)
   -nss, --no-save-state       do not save state
+  -as, --auto-save            continuously save state (every ~10ms)
+  -nas, --no-auto-save        do not continuously save state (default)
   -mr, --midi-reconnect       auto-reconnect midi (default)
   -nmr, --no-midi-reconnect   do not auto-reconnect midi
   -tm, --trace-midi           print midi code and values
   -tf, --trace-fps            print fps status of subsystems
+  --x11                       force X11 GLFW backend
+  --wayland                   force Wayland GLFW backend
+  --cocoa                     force Cocoa GLFW backend
+  --win32                     force Win32 GLFW backend
+  -oma, --opengl-major-version      OpenGL major version (default: 4)
+  -omi, --opengl-minor-version      OpenGL minor version (default: 6)
 ```
 
 ## Default Project
@@ -247,7 +248,7 @@ Working with pages and items, you can use the following predefined sources and e
 | **1** | **0** | Feedback + Thru   | _Hue_             | _Saturation_    | _Light_            | Thru             | _Hue_           | _Saturation_  | _Light_        |
 |       | **1** | Lines             | _Thick. / Dezoom_ | _Rotation_      | _Distortion_       | Feedback + Shift | _Zoom / Dezoom_ | _X Shift_     | _Y Shift_      |
 |       | **2** | Dots              | _Zoom_            | _Rotation_      | _Lens_             | Shift            | _Zoom / Dezoom_ | _X Shift_     | _Y Shift_      |
-|       | **3** | Circuit             | _Zoom_         | _H. connect_     | _V. connect_ | Colorize         | _Black Color_   | _White Color_ | _Shift_        |
+|       | **3** | Bacteria          | _Zoom_            | _Details_       | _Delta details_    | Colorize         | _Black Color_   | _White Color_ | _Shift_        |
 |       | **4** | Noise             | _Zoom_            | _Voronoi dist._ | _Details_          | Quantize         | _Pixel Size_    | _Bit Depth_   | _Blur_         |
 | **2** | **5** | Video In 1 + Thru | _Hue_             | _Saturation_    | _Light_            | Dithering        | _Pixel Size_    | _Bit Depth_   | _Blur_         |
 |       | **6** | CP437             | _Zoom_            | _Charset_       | _Char. Delta_      | TV               | _Lens_          | _Horz. Noise_ | _Dezoom_       |
@@ -262,6 +263,28 @@ Working with pages and items, you can use the following predefined sources and e
 
 See the [printable version](./docs/forge_default_mapping.pdf).
 
+### Available hotkeys
+
+| Hotkey | Function |
+| ------ | -------- |
+| <kbd>Shift</kbd> + <kbd>F</kbd> | Switch between shader-decoded or hardware decoded YUYV |
+| <kbd>M</kbd> | Projection mapping 1 |
+| <kbd>Shift</kbd> + <kbd>M</kbd> | Projection mapping 2 |
+| <kbd>Ctrl</kbd> + <kbd>M</kbd> | Projection mapping 3 |
+| <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>M</kbd> | Projection mapping 4 |
+
+### Projection Mappings
+
+In any of the projection mapping mode, use the nanoKONTROL2 last 4 columns to control 4 on-screen points:
+
+| Midi Control | Function |
+| ------ | -------- |
+| Fader N | point N - X position |
+| Knob N | point N - Y position |
+| Last column top button | activate projection mapping |
+| Last column middle button | invert projection mapping |
+| Last column bottom button | show projection borders |
+
 ## Making your own FORGE project
 
 You want to embrace the "user" in "user-defined"? It's time to make your own project.
@@ -499,7 +522,7 @@ You can check your device real FPS on [V4L2 UCP](https://github.com/HedgeHawk/v4
 
 ### My video feed got strange lines
 
-You need to decode the [V4L2 YUYV format](https://www.kernel.org/doc/html/v4.8/media/uapi/v4l/pixfmt-yuyv.html).
+You may need to decode the [V4L2 YUYV format](https://www.kernel.org/doc/html/v4.8/media/uapi/v4l/pixfmt-yuyv.html).
 
 The code is available in the default project [default/inc_yuyv.glsl](./default/inc_yuyv.glsl)
 

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT([forge], [steel-1.1.0], [klemek.dev@proton.me])
+AC_INIT([forge], [steel-1.2.4], [klemek.dev@proton.me])
 AM_INIT_AUTOMAKE
 AC_PROG_CC
 
@@ -11,7 +11,6 @@ AC_CHECK_HEADERS([stdlib.h])
 AC_CHECK_HEADERS([sys/ioctl.h])
 AC_CHECK_HEADERS([sys/mman.h])
 AC_CHECK_HEADERS([sys/stat.h])
-AC_CHECK_HEADERS([sys/time.h])
 AC_CHECK_HEADERS([sys/types.h])
 AC_CHECK_HEADERS([sys/wait.h])
 

default/forge_project.cfg

@@ -115,13 +115,13 @@ FRAG_FILE_PREFIX=frag
 FRAG_COUNT=10
 
 # To which texture will the shader fragX.glsl will render to
-FRAG_1_OUT=5
+FRAG_1_OUT=3
-FRAG_2_OUT=6
+FRAG_2_OUT=4
-FRAG_3_OUT=7
+FRAG_3_OUT=5
-FRAG_4_OUT=8
+FRAG_4_OUT=6
-FRAG_5_OUT=9
+FRAG_5_OUT=7
-FRAG_6_OUT=10
+FRAG_6_OUT=8
-FRAG_7_OUT=11
+FRAG_7_OUT=9
 FRAG_8_OUT=0
 # Which fragment shader renders to output window
 FRAG_OUTPUT=9
@@ -235,10 +235,14 @@ GROUP_1_6_Y=19
 GROUP_1_6_Z=
 
 # Same for group 2
-GROUP_2_ACTIVE_COUNT=3
+GROUP_2_ACTIVE_COUNT=7
 GROUP_2_ACTIVE_1=36
 GROUP_2_ACTIVE_2=68
 GROUP_2_ACTIVE_3=52
+GROUP_2_ACTIVE_4=1077
+GROUP_2_ACTIVE_5=11077
+GROUP_2_ACTIVE_6=101077
+GROUP_2_ACTIVE_7=111077
 GROUP_2_COUNT=7
 GROUP_2_1_X=37
 GROUP_2_1_Y=53
@@ -269,7 +273,72 @@ GROUP_3_1_Y=58
 GROUP_3_1_Z=
 GROUP_3_2_X=0
 GROUP_3_2_Y=16
-GROUP_3_2_Z=
+GROUP_3_2_Z=11089
+
+# Auto-Random Ignore (ARI) prefixes
+ARI_COUNT=62
+ARI_1=GROUP_3_1_Y
+ARI_2=GROUP_3_2_Z
+ARI_3=GROUP_2_5_X_4
+ARI_4=GROUP_2_5_Y_4
+ARI_5=GROUP_2_5_Z_4
+ARI_6=GROUP_2_2_X_4
+ARI_7=GROUP_2_2_Y_4
+ARI_8=GROUP_2_2_Z_4
+ARI_9=GROUP_2_4_X_4
+ARI_10=GROUP_2_4_Y_4
+ARI_11=GROUP_2_4_Z_4
+ARI_12=GROUP_2_6_X_4
+ARI_13=GROUP_2_6_Y_4
+ARI_14=GROUP_2_6_Z_4
+ARI_15=GROUP_2_7_X_4
+ARI_16=GROUP_2_7_Y_4
+ARI_17=GROUP_2_7_Z_4
+ARI_18=GROUP_2_5_X_5
+ARI_19=GROUP_2_5_Y_5
+ARI_20=GROUP_2_5_Z_5
+ARI_21=GROUP_2_2_X_5
+ARI_22=GROUP_2_2_Y_5
+ARI_23=GROUP_2_2_Z_5
+ARI_24=GROUP_2_4_X_5
+ARI_25=GROUP_2_4_Y_5
+ARI_26=GROUP_2_4_Z_5
+ARI_27=GROUP_2_6_X_5
+ARI_28=GROUP_2_6_Y_5
+ARI_29=GROUP_2_6_Z_5
+ARI_30=GROUP_2_7_X_5
+ARI_31=GROUP_2_7_Y_5
+ARI_32=GROUP_2_7_Z_5
+ARI_33=GROUP_2_5_X_6
+ARI_34=GROUP_2_5_Y_6
+ARI_35=GROUP_2_5_Z_6
+ARI_36=GROUP_2_2_X_6
+ARI_37=GROUP_2_2_Y_6
+ARI_38=GROUP_2_2_Z_6
+ARI_39=GROUP_2_4_X_6
+ARI_40=GROUP_2_4_Y_6
+ARI_41=GROUP_2_4_Z_6
+ARI_42=GROUP_2_6_X_6
+ARI_43=GROUP_2_6_Y_6
+ARI_44=GROUP_2_6_Z_6
+ARI_45=GROUP_2_7_X_6
+ARI_46=GROUP_2_7_Y_6
+ARI_47=GROUP_2_7_Z_6
+ARI_48=GROUP_2_5_X_7
+ARI_49=GROUP_2_5_Y_7
+ARI_50=GROUP_2_5_Z_7
+ARI_51=GROUP_2_2_X_7
+ARI_52=GROUP_2_2_Y_7
+ARI_53=GROUP_2_2_Z_7
+ARI_54=GROUP_2_4_X_7
+ARI_55=GROUP_2_4_Y_7
+ARI_56=GROUP_2_4_Z_7
+ARI_57=GROUP_2_6_X_7
+ARI_58=GROUP_2_6_Y_7
+ARI_59=GROUP_2_6_Z_7
+ARI_60=GROUP_2_7_X_7
+ARI_61=GROUP_2_7_Y_7
+ARI_62=GROUP_2_7_Z_7
 
 # =====
 # OTHER

default/frag1.glsl

@@ -1,9 +1,9 @@
-#version 460
+#version 140
 
 // VIDEO 1
 // -----------
-// IN: 1+3 (RAW IN A)
+// IN: 1 (RAW IN A)
-// OUT: 5 (IN A)
+// OUT: 3 (IN A)
 
 in vec2 vUV;
 out vec4 fragColor;
@@ -14,16 +14,14 @@ uniform sampler2D iTex0;
 uniform sampler2D iTex1;
 uniform sampler2D iTex3;
 uniform int iInputFormat1;
-uniform int iInputSwap1;
 uniform vec2 iInputResolution1;
+uniform vec3 iGroup3_1[2];
 
 void main() {
-    if (iInputFormat1 == YUYV_FOURCC) {
+    if (iGroup3_1[1].z > 0) {
-        if (iInputSwap1 > 0) {
+        fragColor = texture(iTex1, vUV * vec2(1, -1));
-            fragColor = yuyvTex(iTex3, vUV, int(iInputResolution1.x));
+    } else if (iInputFormat1 == YUYV_FOURCC) {
-        } else {
+        fragColor = yuyvTex(iTex1, vUV, int(iInputResolution1.x));
-            fragColor = yuyvTex(iTex1, vUV, int(iInputResolution1.x));
-        }
     } else {
         fragColor = texture(iTex0, vUV);
     }

default/frag10.glsl

@@ -1,4 +1,4 @@
-#version 460
+#version 140
 
 // MONITOR
 // ---
@@ -9,13 +9,13 @@ out vec4 fragColor;
 #include inc_debug.glsl
 
 uniform sampler2D iTex0;
+uniform sampler2D iTex3;
+uniform sampler2D iTex4;
 uniform sampler2D iTex5;
 uniform sampler2D iTex6;
 uniform sampler2D iTex7;
 uniform sampler2D iTex8;
 uniform sampler2D iTex9;
-uniform sampler2D iTex10;
-uniform sampler2D iTex11;
 uniform int iFPS;
 uniform int iInputFPS1;
 uniform int iInputFPS2;
@@ -25,20 +25,18 @@ float s(vec2 uv, float x0, float y0) {
         step(-y0 - 1, -uv.y);
 }
 
-const int texts[12][5] = {
+const int textINA[] = int[5](0x49, 0x4E, 0x20, 0x41, 0x00);
-    {0x49, 0x4E, 0x20, 0x41, 0x00}, // IN A
+const int textINB[] = int[5](0x49, 0x4E, 0x20, 0x42, 0x00);
-    {0x49, 0x4E, 0x20, 0x42, 0x00}, // IN B
+const int textSRCA[] = int[5](0x49, 0x4E, 0x20, 0x41, 0x00);
-    {0x53, 0x52, 0x43, 0x20, 0x41}, // SRC A
+const int textSRCB[] = int[5](0x49, 0x4E, 0x20, 0x42, 0x00);
-    {0x53, 0x52, 0x43, 0x20, 0x42}, // SRC B
+const int textFXA[] = int[5](0x46, 0x58, 0x20, 0x41, 0x00);
-    {0x46, 0x58, 0x20, 0x41, 0x00}, // FX A
+const int textFXB[] = int[5](0x46, 0x58, 0x20, 0x42, 0x00);
-    {0x46, 0x58, 0x20, 0x42, 0x00}, // FX B
+const int textAB[] = int[5](0x41, 0x2B, 0x42, 0x00, 0x00);
-    {0x41, 0x2B, 0x42, 0x00, 0x00}, // A+B
+const int textMFX[] = int[5](0x4D, 0x46, 0x58, 0x00, 0x00);
-    {0x4D, 0x46, 0x58, 0x00, 0x00}, // MFX
+const int textFPS[] = int[5](0x46, 0x50, 0x53, 0x00, 0x00);
-    {0x46, 0x50, 0x53, 0x00, 0x00}, // FPS
+const int textOFF[] = int[5](0x4F, 0x46, 0x46, 0x00, 0x00);
-    {0x4F, 0x46, 0x46, 0x00, 0x00}, // OFF
+const int textDEMO[] = int[5](0x44, 0x45, 0x4D, 0x4F, 0x00);
-    {0x44, 0x45, 0x4D, 0x4F, 0x00}, // DEMO
+const int textLIVE[] = int[5](0x4C, 0x49, 0x56, 0x45, 0x00);
-    {0x4C, 0x49, 0x56, 0x45, 0x00}, // LIVE
-};
 
 void main() {
     vec2 uv0 = vUV.st;
@@ -50,14 +48,14 @@ void main() {
 
     vec4 c = vec4(0);
 
-    c += s(uv2, 1, 2) * texture(iTex7, uv2);
+    c += s(uv2, 1, 2) * texture(iTex5, uv2);
-    c += s(uv2, 2, 2) * texture(iTex9, uv2);
+    c += s(uv2, 2, 2) * texture(iTex7, uv2);
 
-    c += s(uv2, 1, 0) * texture(iTex8, uv2);
+    c += s(uv2, 1, 0) * texture(iTex6, uv2);
-    c += s(uv2, 2, 0) * texture(iTex10, uv2);
+    c += s(uv2, 2, 0) * texture(iTex8, uv2);
 
     c += s(uv2, 0, 1) * debug(mod(uv2, 1));
-    c += s(uv2, 1, 1) * texture(iTex11, uv2);
+    c += s(uv2, 1, 1) * texture(iTex9, uv2);
     c += s(uv2, 2, 1) * texture(iTex0, uv2);
 
     float sel = 0;
@@ -74,65 +72,65 @@ void main() {
     float t = 0;
 
     f += rect(uv3, vec2(-35, 28.5), vec2(2.1, 0.7));
-    t += write_5(uv3, vec2(-37, 28), texts[0]);
+    t += write_5(uv3, vec2(-37, 28), textINA);
 
     if (iInputFormat1 == YUYV_FOURCC) {
-        c += s(uv2, 0, 2) * texture(iTex5, uv2);
+        c += s(uv2, 0, 2) * texture(iTex3, uv2);
         f += rect(uv3, vec2(-35, 26.75), vec2(2.8, 0.7));
         t += write_int(uv3, vec2(-37.6, 26.1), iInputFPS1, 2);
-        t += write_5(uv3, vec2(-35.1, 26.1), texts[8]);
+        t += write_5(uv3, vec2(-35.1, 26.1), textFPS);
     } else {
         f += rect(uv3, vec2(-35, 26.75), vec2(1.6, 0.7));
-        t += write_5(uv3, vec2(-36.5, 26.1), texts[9]);
+        t += write_5(uv3, vec2(-36.5, 26.1), textOFF);
     }
 
     f += rect(uv3, vec2(-35, -11.5), vec2(2.1, 0.7));
-    t += write_5(uv3, vec2(-37, -12), texts[1]);
+    t += write_5(uv3, vec2(-37, -12), textINB);
 
     if (iInputFormat2 == YUYV_FOURCC) {
-        c += s(uv2, 0, 0) * texture(iTex6, uv2);
+        c += s(uv2, 0, 0) * texture(iTex4, uv2);
         f += rect(uv3, vec2(-35, -13.25), vec2(2.8, 0.7));
         t += write_int(uv3, vec2(-37.6, -13.9), iInputFPS2, 2);
-        t += write_5(uv3, vec2(-35.1, -13.9), texts[8]);
+        t += write_5(uv3, vec2(-35.1, -13.9), textFPS);
     } else {
         f += rect(uv3, vec2(-35, -13.25), vec2(1.6, 0.7));
-        t += write_5(uv3, vec2(-36.5, -13.9), texts[9]);
+        t += write_5(uv3, vec2(-36.5, -13.9), textOFF);
     }
 
     f += rect(uv3, vec2(-35, 8.5), vec2(2.1, 0.7));
 
     if (iDemo > 0) {
-        t += write_5(uv3, vec2(-37, 8), texts[10]);
+        t += write_5(uv3, vec2(-37, 8), textDEMO);
     } else {
-        t += write_5(uv3, vec2(-37, 8), texts[11]);
+        t += write_5(uv3, vec2(-37, 8), textLIVE);
     }
 
     f += rect(uv3, vec2(0, 28.5), vec2(2.6, 0.7));
     f += iActive1 == 1 ? h_rect(uv3, vec2(0, 28.5), vec2(3, 1), 0.2) : 0;
-    t += write_5(uv3, vec2(-2.5, 28), texts[2]);
+    t += write_5(uv3, vec2(-2.5, 28), textSRCA);
 
     f += rect(uv3, vec2(0, -11.5), vec2(2.6, 0.7));
     f += iActive1 == 2 ? h_rect(uv3, vec2(0, -11.5), vec2(3, 1), 0.2) : 0;
-    t += write_5(uv3, vec2(-2.5, -12), texts[3]);
+    t += write_5(uv3, vec2(-2.5, -12), textSRCB);
 
     f += rect(uv3, vec2(35, 28.5), vec2(2.1, 0.7));
     f += iActive2 == 1 ? h_rect(uv3, vec2(35, 28.5), vec2(2.5, 1), 0.2) : 0;
-    t += write_5(uv3, vec2(33, 28), texts[4]);
+    t += write_5(uv3, vec2(33, 28), textFXA);
 
     f += rect(uv3, vec2(35, -11.5), vec2(2.1, 0.7));
     f += iActive2 == 2 ? h_rect(uv3, vec2(35, -11.5), vec2(2.5, 1), 0.2) : 0;
-    t += write_5(uv3, vec2(33, -12), texts[5]);
+    t += write_5(uv3, vec2(33, -12), textFXB);
 
     f += rect(uv3, vec2(0, 8.5), vec2(1.6, 0.7));
-    t += write_5(uv3, vec2(-1.5, 8), texts[6]);
+    t += write_5(uv3, vec2(-1.5, 8), textAB);
 
     f += rect(uv3, vec2(35, 8.5), vec2(1.6, 0.7));
     f += iActive2 == 3 ? h_rect(uv3, vec2(35, 8.5), vec2(2, 1), 0.2) : 0;
-    t += write_5(uv3, vec2(33.5, 8), texts[7]);
+    t += write_5(uv3, vec2(33.5, 8), textMFX);
 
     f += rect(uv3, vec2(35, 6.75), vec2(2.8, 0.7));
     t += write_int(uv3, vec2(32.4, 6.1), iFPS, 2);
-    t += write_5(uv3, vec2(34.9, 6.1), texts[8]);
+    t += write_5(uv3, vec2(34.9, 6.1), textFPS);
 
     fragColor = mix(c, vec4(min(1, f) - t), min(1, f));
 }

default/frag2.glsl

@@ -1,9 +1,9 @@
-#version 460
+#version 140
 
 // VIDEO 2
 // -----------
-// IN: 2+4 (RAW IN B)
+// IN: 2 (RAW IN B)
-// OUT: 6 (IN B)
+// OUT: 4 (IN B)
 
 in vec2 vUV;
 out vec4 fragColor;
@@ -14,16 +14,14 @@ uniform sampler2D iTex0;
 uniform sampler2D iTex2;
 uniform sampler2D iTex4;
 uniform int iInputFormat2;
-uniform int iInputSwap2;
 uniform vec2 iInputResolution2;
+uniform vec3 iGroup3_1[2];
 
 void main() {
-    if (iInputFormat2 == YUYV_FOURCC) {
+    if (iGroup3_1[1].z > 0) {
-        if (iInputSwap2 > 0) {
+        fragColor = texture(iTex2, vUV * vec2(1, -1));
-            fragColor = yuyvTex(iTex4, vUV, int(iInputResolution2.x));
+    } else if (iInputFormat2 == YUYV_FOURCC) {
-        } else {
+        fragColor = yuyvTex(iTex2, vUV, int(iInputResolution2.x));
-            fragColor = yuyvTex(iTex2, vUV, int(iInputResolution2.x));
-        }
     } else {
         fragColor = texture(iTex0, vUV);
     }

default/frag3.glsl

@@ -3,15 +3,13 @@
 
 // SRC A
 // -----------
-// OUT: 7 (FX A)
+// OUT: 5 (FX A)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 #include inc_src.glsl
 
-subroutine uniform src_stage_sub src_stage;
-
 uniform int iSeed3;
 uniform vec3 iGroup1_1[6];
 

default/frag4.glsl

@@ -2,15 +2,13 @@
 
 // SRC B
 // -----------
-// OUT: 8 (FX B)
+// OUT: 6 (FX B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 #include inc_src.glsl
 
-subroutine uniform src_stage_sub src_stage;
-
 uniform int iSeed4;
 uniform vec3 iGroup1_2[6];
 

default/frag5.glsl

@@ -2,20 +2,20 @@
 
 // FX A
 // -------------
-// IN: 7 (SRC A)
+// IN: 5 (SRC A)
-// IN: 9 (FX A)
+// IN: 7 (FX A)
-// OUT: 9 (A+B)
+// OUT: 7 (A+B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 #include inc_fx.glsl
 
+uniform sampler2D iTex5;
 uniform sampler2D iTex7;
-uniform sampler2D iTex9;
 uniform int iSeed5;
 uniform vec3 iGroup2_1[7];
 
 void main() {
-    fragColor = fx_stage(vUV, iTex7, iTex9, iSeed5, iGroup2_1[0], iGroup2_1[1].xy, iGroup2_1[2], iGroup2_1[3].xy, iGroup2_1[4], iGroup2_1[5].xy, iGroup2_1[6]);
+    fragColor = fx_stage(vUV, iTex5, iTex7, iSeed5, iGroup2_1[0], iGroup2_1[1].xy, iGroup2_1[2], iGroup2_1[3].xy, iGroup2_1[4], iGroup2_1[5].xy, iGroup2_1[6]);
 }

default/frag6.glsl

@@ -2,20 +2,20 @@
 
 // FX B
 // -------------
-// IN: 8 (SRC B)
+// IN: 6 (SRC B)
-// IN: 10 (FX B)
+// IN: 8 (FX B)
-// OUT: 10 (A+B)
+// OUT: 8 (A+B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 #include inc_fx.glsl
 
+uniform sampler2D iTex6;
 uniform sampler2D iTex8;
-uniform sampler2D iTex10;
 uniform int iSeed6;
 uniform vec3 iGroup2_2[7];
 
 void main() {
-    fragColor = fx_stage(vUV, iTex8, iTex10, iSeed6, iGroup2_2[0], iGroup2_2[1].xy, iGroup2_2[2], iGroup2_2[3].xy, iGroup2_2[4], iGroup2_2[5].xy, iGroup2_2[6]);
+    fragColor = fx_stage(vUV, iTex6, iTex8, iSeed6, iGroup2_2[0], iGroup2_2[1].xy, iGroup2_2[2], iGroup2_2[3].xy, iGroup2_2[4], iGroup2_2[5].xy, iGroup2_2[6]);
 }

default/frag7.glsl

@@ -1,10 +1,10 @@
-#version 460
+#version 140
 
 // A+B
 // ------------
-// IN: 9 (FX A)
+// IN: 7 (FX A)
-// IN: 10 (FX B)
+// IN: 8 (FX B)
-// OUT: 11 (MFX)
+// OUT: 9 (MFX)
 
 in vec2 vUV;
 out vec4 fragColor;
@@ -13,8 +13,8 @@ out vec4 fragColor;
 #include inc_functions.glsl
 
 uniform int iDemo;
-uniform sampler2D iTex9;
+uniform sampler2D iTex7;
-uniform sampler2D iTex10;
+uniform sampler2D iTex8;
 uniform int iSeed7;
 uniform vec3 iGroup3_1[2];
 
@@ -22,8 +22,8 @@ void main() {
     float mix_value = magic(iGroup3_1[1].xy, vec3(1, 0, 0), iSeed7);
     bool mix_type = magic_trigger(vec3(iGroup3_1[0].x, 0, 0), iSeed7 + 10);
 
-    vec4 color_a = texture(iTex9, vUV);
+    vec4 color_a = texture(iTex7, vUV);
-    vec4 color_b = texture(iTex10, vUV);
+    vec4 color_b = texture(iTex8, vUV);
 
     float k = mean(color_a);
 

default/frag8.glsl

@@ -2,7 +2,7 @@
 
 // MFX
 // ------------
-// IN: 11 (A+B)
+// IN: 9 (A+B)
 // IN: 0 (OUT)
 // OUT: 0 (OUT)
 
@@ -11,20 +11,16 @@ out vec4 fragColor;
 
 #include inc_fx.glsl
 
-uniform sampler2D iTex11;
+uniform sampler2D iTex9;
 uniform sampler2D iTex0;
 uniform int iSeed8;
 uniform vec3 iGroup2_3[7];
 uniform vec3 iGroup3_1[2];
-uniform int iDemo;
-uniform int iAutoRand;
 
 void main() {
-    vec4 color = fx_stage(vUV, iTex11, iTex0, iSeed8, iGroup2_3[0], iGroup2_3[1].xy, iGroup2_3[2], iGroup2_3[3].xy, iGroup2_3[4], iGroup2_3[5].xy, iGroup2_3[6]);
+    vec4 color = fx_stage(vUV, iTex9, iTex0, iSeed8, iGroup2_3[0], iGroup2_3[1].xy, iGroup2_3[2], iGroup2_3[3].xy, iGroup2_3[4], iGroup2_3[5].xy, iGroup2_3[6]);
 
-    if (iDemo < 1 && iAutoRand < 1) {
+    color = mix(color, vec4(0), iGroup3_1[0].y);
-        color = mix(color, vec4(0), iGroup3_1[0].y);
-    }
 
     fragColor = color;
 }

default/frag9.glsl

@@ -1,4 +1,4 @@
-#version 460
+#version 140
 
 // OUT
 // ---
@@ -6,8 +6,117 @@
 in vec2 vUV;
 out vec4 fragColor;
 
+#include inc_map.glsl
+#include inc_cp437.glsl
+
 uniform sampler2D iTex0;
+uniform vec3 iGroup2_4[7];
+uniform vec3 iGroup2_5[7];
+uniform vec3 iGroup2_6[7];
+uniform vec3 iGroup2_7[7];
+uniform int iFPS;
+uniform int iDemo;
+
+const int[] textDEMO = int[5](0x44, 0x45, 0x4D, 0x4F, 0x00);
 
 void main() {
-    fragColor = texture(iTex0, vUV);
+    bool visible = (iGroup2_4[4].x + iGroup2_5[4].x + iGroup2_6[4].x + iGroup2_7[4].x) > 0;
+    bool invert = (iGroup2_4[4].y + iGroup2_5[4].y + iGroup2_6[4].y + iGroup2_7[4].y) > 0;
+    float rect = clamp(iGroup2_4[4].z + iGroup2_5[4].z + iGroup2_6[4].z + iGroup2_7[4].z, 0, 1);
+    bool modified = false;
+
+    vec2 uv = mix(vec2(0), vUV, base_mask(vUV));
+
+    if (iGroup2_4[4].x > 0) {
+        vec2 p11 = vec2(iGroup2_4[6].xy);
+        vec2 p12 = vec2(iGroup2_4[1].xy);
+        vec2 p13 = vec2(iGroup2_4[3].xy);
+        vec2 p14 = vec2(iGroup2_4[5].xy);
+
+        p12.x = 1 - p12.x;
+        p13.y = 1 - p13.y;
+        p14.x = 1 - p14.x;
+        p14.y = 1 - p14.y;
+
+        vec2 uv1 = project_4p(vUV, p11, p12, p13, p14);
+        uv1 = mix(vec2(0), uv1, base_mask(uv1));
+        uv = uv1;
+        modified = true;
+    }
+
+    if (iGroup2_5[4].x > 0) {
+        vec2 p21 = vec2(iGroup2_5[6].xy);
+        vec2 p22 = vec2(iGroup2_5[1].xy);
+        vec2 p23 = vec2(iGroup2_5[3].xy);
+        vec2 p24 = vec2(iGroup2_5[5].xy);
+
+        p22.x = 1 - p22.x;
+        p23.y = 1 - p23.y;
+        p24.x = 1 - p24.x;
+        p24.y = 1 - p24.y;
+
+        vec2 uv2 = project_4p(vUV, p21, p22, p23, p24);
+        uv2 = mix(vec2(0), uv2, base_mask(uv2));
+        if (modified) {
+            uv = mix(uv, uv2, step(0.0001, length(uv2)));
+        } else {
+            uv = uv2;
+        }
+        modified = true;
+    }
+
+    if (iGroup2_6[4].x > 0) {
+        vec2 p31 = vec2(iGroup2_6[6].xy);
+        vec2 p32 = vec2(iGroup2_6[1].xy);
+        vec2 p33 = vec2(iGroup2_6[3].xy);
+        vec2 p34 = vec2(iGroup2_6[5].xy);
+
+        p32.x = 1 - p32.x;
+        p33.y = 1 - p33.y;
+        p34.x = 1 - p34.x;
+        p34.y = 1 - p34.y;
+
+        vec2 uv3 = project_4p(vUV, p31, p32, p33, p34);
+        uv3 = mix(vec2(0), uv3, base_mask(uv3));
+        if (modified) {
+            uv = mix(uv, uv3, step(0.0001, length(uv3)));
+        } else {
+            uv = uv3;
+        }
+        modified = true;
+    }
+
+    if (iGroup2_7[4].x > 0) {
+        vec2 p41 = vec2(iGroup2_7[6].xy);
+        vec2 p42 = vec2(iGroup2_7[1].xy);
+        vec2 p43 = vec2(iGroup2_7[3].xy);
+        vec2 p44 = vec2(iGroup2_7[5].xy);
+
+        p42.x = 1 - p42.x;
+        p43.y = 1 - p43.y;
+        p44.x = 1 - p44.x;
+        p44.y = 1 - p44.y;
+
+        vec2 uv4 = project_4p(vUV, p41, p42, p43, p44);
+        uv4 = mix(vec2(0), uv4, base_mask(uv4));
+        if (modified) {
+            uv = mix(uv, uv4, step(0.0001, length(uv4)));
+        } else {
+            uv = uv4;
+        }
+        modified = true;
+    }
+
+    vec4 color = texture(iTex0, invert ? vUV : uv);
+
+    color = mix(color, 1. - color, iDemo * write_int(uv * 20., vec2(1.), iFPS, 2));
+    color = mix(color, 1. - color, iDemo * write_5(uv * 20., vec2(1., 18.), textDEMO));
+
+    if (visible) {
+        float mask = step(0.0001, length(uv));
+        color *= mix(mask, 1 - mask, invert ? 1 : 0);
+        color = mix(color, color + mask * vec4(1), rect * (step(uv.x, 0.01) + step(uv.y, 0.01) + step(1 - uv.y, 0.01) + step(1 - uv.x, 0.01)));
+    }
+
+    fragColor = color;
 }

default/inc_cp437.glsl

@@ -1,7 +1,9 @@
+#include inc_sentences.glsl
+
 #ifndef INC_CP437
 #define INC_CP437
 
-const int cp437[] = {
+const int cp437[] = int[1024](
     0x0000, 0x0000, 0x0000, 0x0000, // 0x00, NUL
     0x151E, 0x8A87, 0xE19D, 0x789B, // 0x01, SOH, SMILEY BLACK
     0xFBFE, 0xFDF7, 0xEF73, 0x7FEC, // 0x02, STX, SMILEY LIGHT
@@ -257,10 +259,10 @@ const int cp437[] = {
     0x666E, 0x3331, 0x0006, 0x0003, // 0xFC, ⁿ
     0x6C8E, 0x0010, 0x000E, 0x0001, // 0xFD, ²
     0xCC00, 0x3300, 0x00CC, 0x0033, // 0xFE, ■
-    0x0000, 0x0000, 0x0000, 0x0000, // 0xFF, NBSP
+    0x0000, 0x0000, 0x0000, 0x0000  // 0xFF, NBSP
-};
+);
 
-const int charsets[] = {
+const int charsets[] = int[18](
     0x30, 10, // NUMBERS
     0x41, 26, // UPPERCASE LETTERS
     0x61, 26, // LOWERCASE LETTERS
@@ -269,12 +271,12 @@ const int charsets[] = {
     0xB3, 40, // BARS
     0xE0, 16, // GREEK
     0x80, 28, // ACCENTS
-    0xB0, 3, // SHADES
+    0xB0, 3 // SHADES
-};
+);
 
 #define CHARSETS 8
 
-const int hex_chars[] = {
+const int hex_chars[] = int[16](
     0x30,
     0x31,
     0x32,
@@ -290,29 +292,29 @@ const int hex_chars[] = {
     0x43,
     0x44,
     0x45,
-    0x46,
+    0x46
-};
+);
 
 bool char(vec2 pos, int code)
 {
-    if (pos.x < 0.0 || pos.y < 0.0 || pos.x >= 1.0 || pos.y >= 1.0) {
+    if (pos.x < .0 || pos.y < .0 || pos.x >= 1. || pos.y >= 1.) {
         return false;
     }
-    ivec2 pos2 = ivec2(pos.x * 8.0, (1 - pos.y) * 8.0);
+    ivec2 pos2 = ivec2(pos.x * 8., (1 - pos.y) * 8.);
     ivec2 subpos = pos2 % 4;
-    int v = int(pow(2, subpos.y * 4 + subpos.x));
+    int v = int(pow(2., subpos.y * 4. + subpos.x));
-    int d = int(pos2.y * 0.25) * 2 + int(pos2.x * 0.25);
+    int d = int(pos2.y * .25) * 2 + int(pos2.x * .25);
     return (cp437[code * 4 + d] & v) > 0;
 }
 
 float char_at(vec2 uv, vec2 pos, int code)
 {
-    return char(uv - pos, code) ? 1 : 0;
+    return char(uv - pos, code) ? 1. : 0.;
 }
 
 float write_5(vec2 uv, vec2 pos, int str[5])
 {
-    float d = 0;
+    float d = 0.;
     int i;
 
     for (i = 0; i < 5; i++) {
@@ -320,7 +322,7 @@ float write_5(vec2 uv, vec2 pos, int str[5])
             return d;
         }
 
-        d += char_at(uv, pos + vec2(i, 0), str[i]);
+        d += char_at(uv, pos + vec2(i, 0.), str[i]);
     }
 
     return d;
@@ -328,7 +330,7 @@ float write_5(vec2 uv, vec2 pos, int str[5])
 
 float write_10(vec2 uv, vec2 pos, int str[10])
 {
-    float d = 0;
+    float d = 0.;
     int i;
 
     for (i = 0; i < 10; i++) {
@@ -336,7 +338,7 @@ float write_10(vec2 uv, vec2 pos, int str[10])
             return d;
         }
 
-        d += char_at(uv, pos + vec2(i, 0), str[i]);
+        d += char_at(uv, pos + vec2(i, 0.), str[i]);
     }
 
     return d;
@@ -344,7 +346,7 @@ float write_10(vec2 uv, vec2 pos, int str[10])
 
 float write_20(vec2 uv, vec2 pos, int str[20])
 {
-    float d = 0;
+    float d = 0.;
     int i;
 
     for (i = 0; i < 20; i++) {
@@ -352,96 +354,56 @@ float write_20(vec2 uv, vec2 pos, int str[20])
             return d;
         }
 
-        d += char_at(uv, pos + vec2(i, 0), str[i]);
+        d += char_at(uv, pos + vec2(i, 0.), str[i]);
     }
 
     return d;
 }
 
-float write_int(vec2 uv, vec2 pos, uint value, uint magnitude)
+float write_int(vec2 uv, vec2 pos, int value, int magnitude)
 {
+    value = max(0, value);
     int i;
-    uint m = 1;
+    int m = 1;
-    float d = 0;
+    float d = 0.;
     for (i = 0; i < magnitude; i++) {
         if (i == 0 || value >= m) {
-            d += char_at(uv, pos + vec2(magnitude - i - 1, 0), int(0x30 + (value % (m * 10u)) / m));
+            d += char_at(uv, pos + vec2(magnitude - i - 1, 0.), int(0x30 + (value % (m * 10)) / m));
-            m *= 10u;
+            m *= 10;
         }
     }
     return d;
 }
 
-float write_int_left(vec2 uv, vec2 pos, uint value, uint magnitude)
+float write_int_left(vec2 uv, vec2 pos, int value, int magnitude)
 {
+    value = max(0, value);
     int i;
-    uint m = 1;
+    int m = 1;
-    float d = 0;
+    float d = 0.;
     for (i = 0; i < magnitude; i++) {
         if (i == 0 || value >= m) {
-            pos.x += 1;
+            pos.x += 1.;
-            m *= 10u;
+            m *= 10;
         }
     }
     return write_int(uv, pos, value, magnitude);
 }
 
-int read(sampler2D tex, vec2 uv, float k, int d, float t)
+float write_sentence(vec2 uv, vec2 pos, int n)
 {
-    float inv_k = 1 / k;
+    float d = 0.;
-    vec2 tex_uv = floor(uv * k) * inv_k;
-    tex_uv += vec2(d % 2, floor(d * 0.5)) * 0.5 * inv_k;
-    return
-        ((mean(reframe(tex, tex_uv + vec2(0, 3) * inv_k * 0.125)) > t) ? 1 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(0, 2) * inv_k * 0.125)) > t) ? 2 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(0, 1) * inv_k * 0.125)) > t) ? 4 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(0, 0) * inv_k * 0.125)) > t) ? 8 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 3) * inv_k * 0.125)) > t) ? 16 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 2) * inv_k * 0.125)) > t) ? 32 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 1) * inv_k * 0.125)) > t) ? 64 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(1, 0) * inv_k * 0.125)) > t) ? 128 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 3) * inv_k * 0.125)) > t) ? 256 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 2) * inv_k * 0.125)) > t) ? 512 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 1) * inv_k * 0.125)) > t) ? 1024 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(2, 0) * inv_k * 0.125)) > t) ? 2048 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 3) * inv_k * 0.125)) > t) ? 4096 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 2) * inv_k * 0.125)) > t) ? 8192 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 1) * inv_k * 0.125)) > t) ? 16384 : 0) +
-        ((mean(reframe(tex, tex_uv + vec2(3, 0) * inv_k * 0.125)) > t) ? 32768 : 0);
-}
-
-// https://web.archive.org/web/20151229003112/http://blogs.msdn.com/b/jeuge/archive/2005/06/08/hakmem-bit-count.aspx
-int bit_count(int u)
-{
-        int c;
-        c = u - ((u >> 1) & 033333333333) - ((u >> 2) & 011111111111);
-        return ((c + (c >> 3)) & 030707070707) % 63;
-}
-
-int guess_char(sampler2D tex, vec2 uv, float k, float t)
-{
-    int b0 = read(tex, uv, k, 0, t);
-    int b1 = read(tex, uv, k, 1, t);
-    int b2 = read(tex, uv, k, 2, t);
-    int b3 = read(tex, uv, k, 3, t);
-
-    int mc = 0;
-    int mb = 100;
     int i;
-    int b;
 
-    for (i = 0x01; i <= 0xFF; i++) {
+    for (i = 0; i < SENTENCE_MAX_LENGTH; i++) {
-        if (i == 0x20 || i == 0xff || i == 0xDB) {
+        if (sentences[n * SENTENCE_MAX_LENGTH + i] == 0) {
-            continue;
+            return d;
-        }
-        b = bit_count(cp437[i * 4] ^ b0) + bit_count(cp437[i * 4 + 1] ^ b1) + bit_count(cp437[i * 4 + 2] ^ b2) +  + bit_count(cp437[i * 4 + 3] ^ b3);
-        if (b < mb) {
-            mb = b;
-            mc = i;
         }
+
+        d += char_at(uv, pos + vec2(i, 0.), sentences[n * SENTENCE_MAX_LENGTH + i]);
     }
 
-    return mc;
+    return d;
 }
 
 #endif

default/inc_debug.glsl

@@ -46,27 +46,27 @@ vec4 debug(vec2 vUV)
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // inputs
 
     int selected_srca = iState3 - 1;
     bool random_srca = iState3 == 15;
     if (random_srca) {
-        selected_srca = int(randTime(iSeed3 + 100) * 14);
+        selected_srca = int(randTime(iSeed3 + 100.) * 14.);
     }
-    if (selected_srca == 5 && iDemo > 0) {
+    if (selected_srca == 5 && iDemo > 0.) {
         selected_srca = 1;
         random_srca = true;
     }
-    if (selected_srca == 10 && iDemo > 0) {
+    if (selected_srca == 10 && iDemo > 0.) {
         selected_srca = 2;
         random_srca = true;
     }
     int selected_srcb = iState4 - 1;
     bool random_srcb = iState4 == 15;
     if (random_srcb) {
-        selected_srcb = int(randTime(iSeed4 + 100) * 14);
+        selected_srcb = int(randTime(iSeed4 + 100.) * 14.);
     }
     if (selected_srcb == 5 && iDemo > 0) {
         selected_srcb = 1;
@@ -79,181 +79,116 @@ vec4 debug(vec2 vUV)
     int selected_fxa = iState5 - 1;
     bool random_fxa = iState5 == 15;
     if (random_fxa) {
-        selected_fxa = int(randTime(iSeed5 + 100) * 14);
+        selected_fxa = int(randTime(iSeed5 + 100.) * 14.);
     }
     int selected_fxb = iState6 - 1;
     bool random_fxb = iState6 == 15;
     if (random_fxb) {
-        selected_fxb = int(randTime(iSeed6 + 100) * 14);
+        selected_fxb = int(randTime(iSeed6 + 100.) * 14.);
     }
     int selected_mfx = iState8 - 1;
     bool random_mfx = iState8 == 15;
     if (random_mfx) {
-        selected_mfx = int(randTime(iSeed8 + 100) * 14);
+        selected_mfx = int(randTime(iSeed8 + 100.) * 14.);
     }
-    float fxa_value = magic(iGroup2_1[6].xy, vec3(1, 0, 0), iSeed5);
+    float fxa_value = magic(iGroup2_1[6].xy, vec3(1., 0., 0.), iSeed5);
-    bool fxa_invert = magic_trigger(vec3(iGroup2_1[6].z, 0, 0), iSeed5);
+    bool fxa_invert = magic_trigger(vec3(iGroup2_1[6].z, 0., 0.), iSeed5);
-    float fxb_value = magic(iGroup2_2[6].xy, vec3(1, 0, 0), iSeed6);
+    float fxb_value = magic(iGroup2_2[6].xy, vec3(1., 0., 0.), iSeed6);
-    bool fxb_invert = magic_trigger(vec3(iGroup2_2[6].z, 0, 0), iSeed6);
+    bool fxb_invert = magic_trigger(vec3(iGroup2_2[6].z, 0., 0.), iSeed6);
-    float mfx_value = magic(iGroup2_3[6].xy, vec3(1, 0, 0), iSeed8);
+    float mfx_value = magic(iGroup2_3[6].xy, vec3(1., 0., 0.), iSeed8);
-    bool mfx_invert = magic_trigger(vec3(iGroup2_3[6].z, 0, 0), iSeed8);
+    bool mfx_invert = magic_trigger(vec3(iGroup2_3[6].z, 0., 0.), iSeed8);
-    float mix_value = magic(iGroup3_1[1].xy, vec3(1, 0, 0), iSeed7);
+    float mix_value = magic(iGroup3_1[1].xy, vec3(1., 0., 0.), iSeed7);
-    mix_value = mix(mix_value, mix_value * 0.9 + 0.05, iDemo);
+    mix_value = mix(mix_value, mix_value * .9 + .05, iDemo);
-    bool mix_type = magic_trigger(vec3(iGroup3_1[0].x, 0, 0), iSeed7 + 10);
+    bool mix_type = magic_trigger(vec3(iGroup3_1[0].x, 0., 0.), iSeed7 + 10.);
 
     // logic
 
-    const int texts[10][5] = {
+    const int textTEMPO[] = int[5](0x54, 0x45, 0x4D, 0x50, 0x4F);
-            {
+    const int textTIME[] = int[5](0x54, 0x49, 0x4D, 0x45, 0x00);
-                0x46,
+    const int textRAND[] = int[5](0x52, 0x41, 0x4E, 0x44, 0x00);
-                0x50,
+    const int textSRC[] = int[5](0x53, 0x52, 0x43, 0x00, 0x00);
-                0x53,
+    const int textFX[] = int[5](0x46, 0x58, 0x00, 0x00, 0x00);
-                0x00,
+    const int textIN[] = int[5](0x49, 0x4E, 0x00, 0x00, 0x00);
-                0x00
+    const int textMFX[] = int[5](0x4D, 0x46, 0x58, 0x00, 0x00);
-            }, // FPS
-            {
-                0x54,
-                0x45,
-                0x4D,
-                0x50,
-                0x4F
-            }, // TEMPO
-            {
-                0x54,
-                0x49,
-                0x4D,
-                0x45,
-                0x00
-            }, // TIME
-            {
-                0x44,
-                0x45,
-                0x4D,
-                0x4F,
-                0x00
-            }, // DEMO
-            {
-                0x4C,
-                0x49,
-                0x56,
-                0x45,
-                0x00
-            }, // LIVE
-            {
-                0x52,
-                0x41,
-                0x4E,
-                0x44,
-                0x00
-            }, // RAND
-            {
-                0x53,
-                0x52,
-                0x43,
-                0x00,
-                0x00
-            }, // SRC
-            {
-                0x46,
-                0x58,
-                0x00,
-                0x00,
-                0x00
-            }, // FX
-            {
-                0x49,
-                0x4E,
-                0x00,
-                0x00,
-                0x00
-            }, // IN
-            {
-                0x4D,
-                0x46,
-                0x58,
-                0x00,
-                0x00
-            }, // MFX
-        };
 
     vec2 uv2 = uv1;
 
-    uv2 *= 10;
+    uv2 *= 10.;
-    uv2.x -= 0.5;
+    uv2.x -= .5;
-    uv2.y += 0.5;
+    uv2.y += .5;
 
-    vec2 uv3 = uv1 * 30;
+    vec2 uv3 = uv1 * 30.;
 
     // base frame
     float f =
-        h_rect(uv2, vec2(-5, -2), vec2(1), 0.1) +
+        h_rect(uv2, vec2(-5., -2.), vec2(1.), .1) +
-            h_rect(uv2, vec2(-2, -2), vec2(1), 0.1) +
+            h_rect(uv2, vec2(-2., -2.), vec2(1.), .1) +
-            rect(uv2, vec2(-3.5, -2), vec2(0.5, 0.1)) +
+            rect(uv2, vec2(-3.5, -2.), vec2(.5, .1)) +
-            h_rect(uv2, vec2(-5, 2), vec2(1), 0.1) +
+            h_rect(uv2, vec2(-5, 2.), vec2(1.), .1) +
-            h_rect(uv2, vec2(-2, 2), vec2(1), 0.1) +
+            h_rect(uv2, vec2(-2, 2.), vec2(1.), .1) +
-            rect(uv2, vec2(-3.5, 2), vec2(0.5, 0.1)) +
+            rect(uv2, vec2(-3.5, 2.), vec2(.5, .1)) +
-            h_rect(uv2, vec2(2, 0), vec2(1), 0.1) +
+            h_rect(uv2, vec2(2., 0.), vec2(1.), .1) +
-            h_rect(uv2, vec2(5, 0), vec2(1), 0.1) +
+            h_rect(uv2, vec2(5., 0.), vec2(1.), .1) +
-            rect(uv2, vec2(3.5, 0), vec2(0.5, 0.1)) +
+            rect(uv2, vec2(3.5, 0.), vec2(.5, .1)) +
-            rect(uv2, vec2(0.55, -2), vec2(1.5, 0.1)) +
+            rect(uv2, vec2(.55, -2.), vec2(1.5, .1)) +
-            rect(uv2, vec2(2, -1.55), vec2(0.1, 0.55)) +
+            rect(uv2, vec2(2., -1.55), vec2(.1, .55)) +
-            rect(uv2, vec2(0.55, 2), vec2(1.5, 0.1)) +
+            rect(uv2, vec2(.55, 2.), vec2(1.5, .1)) +
-            rect(uv2, vec2(2, 1.55), vec2(0.1, 0.55)) +
+            rect(uv2, vec2(2., 1.55), vec2(.1, .55)) +
-            rect(uv2, vec2(6.8, 0), vec2(0.75, 0.1)) +
+            rect(uv2, vec2(6.8, 0.), vec2(.75, .1)) +
-            h_circle(uv2, vec2(7.8, 0), 0.3, 0.1);
+            h_circle(uv2, vec2(7.8, 0.), .3, .1);
 
     if (iDemo < 1 && iInputFormat1 == YUYV_FOURCC) {
-        f += circle(uv2, vec2(-9, 2), 0.3);
+        f += circle(uv2, vec2(-9., 2.), .3);
     }
 
     if (iDemo < 1 && iInputFormat2 == YUYV_FOURCC) {
-        f += circle(uv2, vec2(-9, -2), 0.3);
+        f += circle(uv2, vec2(-9., -2.), .3);
     }
 
     // show selected src/fx
     f += char_at(uv2, vec2(-5.4, 1.45), hex_chars[selected_srca]);
-    f += random_srca ? circle(uv2, vec2(-4.25, 2.7), 0.1) : 0;
+    f += random_srca ? circle(uv2, vec2(-4.25, 2.7), .1) : 0.;
     f += char_at(uv2, vec2(-5.4, -2.55), hex_chars[selected_srcb]);
-    f += random_srcb ? circle(uv2, vec2(-4.25, -1.3), 0.1) : 0;
+    f += random_srcb ? circle(uv2, vec2(-4.25, -1.3), .1) : 0.;
     f += char_at(uv2, vec2(-2.4, 1.45), hex_chars[selected_fxa]);
-    f += fxa_invert ? rect(uv2, vec2(-2, 2.7), vec2(0.5, 0.05)) : 0;
+    f += fxa_invert ? rect(uv2, vec2(-2., 2.7), vec2(.5, .05)) : 0.;
-    f += random_fxa ? circle(uv2, vec2(-1.25, 2.7), 0.1) : 0;
+    f += random_fxa ? circle(uv2, vec2(-1.25, 2.7), .1) : 0.;
     f += char_at(uv2, vec2(-2.4, -2.55), hex_chars[selected_fxb]);
-    f += fxb_invert ? rect(uv2, vec2(-2, -1.3), vec2(0.5, 0.05)) : 0;
+    f += fxb_invert ? rect(uv2, vec2(-2., -1.3), vec2(.5, .05)) : 0.;
-    f += random_fxb ? circle(uv2, vec2(-1.25, -1.3), 0.1) : 0;
+    f += random_fxb ? circle(uv2, vec2(-1.25, -1.3), .1) : 0.;
-    f += char_at(uv2, vec2(4.6, -0.55), hex_chars[selected_mfx]);
+    f += char_at(uv2, vec2(4.6, -.55), hex_chars[selected_mfx]);
-    f += mfx_invert ? rect(uv2, vec2(5, 0.7), vec2(0.5, 0.05)) : 0;
+    f += mfx_invert ? rect(uv2, vec2(5., .7), vec2(.5, .05)) : 0.;
-    f += random_mfx ? circle(uv2, vec2(5.75, 0.7), 0.1) : 0;
+    f += random_mfx ? circle(uv2, vec2(5.75, .7), .1) : 0.;
 
     // show current selected
-    f += iSelected == 3 ? h_rect(uv2, vec2(-5, 2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 3 ? h_rect(uv2, vec2(-5., 2.), vec2(1.2), .1) : 0.;
-    f += iSelected == 4 ? h_rect(uv2, vec2(-5, -2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 4 ? h_rect(uv2, vec2(-5., -2.), vec2(1.2), .1) : 0.;
-    f += iSelected == 5 ? h_rect(uv2, vec2(-2, 2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 5 ? h_rect(uv2, vec2(-2., 2.), vec2(1.2), .1) : 0.;
-    f += iSelected == 6 ? h_rect(uv2, vec2(-2, -2), vec2(1.2), 0.1) : 0;
+    f += iSelected == 6 ? h_rect(uv2, vec2(-2., -2.), vec2(1.2), .1) : 0.;
-    f += iSelected == 8 ? h_rect(uv2, vec2(5, 0), vec2(1.2), 0.1) : 0;
+    f += iSelected == 8 ? h_rect(uv2, vec2(5., 0.), vec2(1.2), .1) : 0.;
 
     // show selected src/fx
-    f += iActive1 == 1 ? h_rect(uv2, vec2(-5, 0.8), vec2(1, 0), 0.1) : 0;
+    f += iActive1 == 1 ? h_rect(uv2, vec2(-5., .8), vec2(1., 0.), .1) : 0.;
-    f += iActive1 == 2 ? h_rect(uv2, vec2(-5, -3.2), vec2(1, 0), 0.1) : 0;
+    f += iActive1 == 2 ? h_rect(uv2, vec2(-5., -3.2), vec2(1., 0.), .1) : 0.;
-    f += iActive2 == 1 ? h_rect(uv2, vec2(-2, 0.8), vec2(1.2, 0), 0.1) : 0;
+    f += iActive2 == 1 ? h_rect(uv2, vec2(-2., .8), vec2(1.2, 0.), .1) : 0.;
-    f += iActive2 == 2 ? h_rect(uv2, vec2(-2, -3.2), vec2(1, 0), 0.1) : 0;
+    f += iActive2 == 2 ? h_rect(uv2, vec2(-2., -3.2), vec2(1., 0.), .1) : 0.;
-    f += iActive2 == 3 ? h_rect(uv2, vec2(5, -1.2), vec2(1, 0), 0.1) : 0;
+    f += iActive2 == 3 ? h_rect(uv2, vec2(5., -1.2), vec2(1., 0.), .1) : 0.;
 
     // show src/fx
 
-    f += write_5(uv3 * 0.75, vec2(-11.6, -1.8), texts[6]);
+    f += write_5(uv3 * .75, vec2(-11.6, -1.8), textSRC);
-    f += write_5(uv3 * 0.75, vec2(-4.2, -1.8), texts[7]);
+    f += write_5(uv3 * .75, vec2(-4.2, -1.8), textFX);
-    f += char_at(uv3 * 0.5, vec2(-11.5, 3.5), 0x41);
+    f += char_at(uv3 * .5, vec2(-11.5, 3.5), 0x41);
-    f += char_at(uv3 * 0.5, vec2(-11.5, -6), 0x42);
+    f += char_at(uv3 * .5, vec2(-11.5, -6.), 0x42);
     if (iDemo < 1 && (iInputFormat1 == YUYV_FOURCC || iInputFormat2 == YUYV_FOURCC)) {
-        f += write_5(uv3 * 0.75, vec2(-19.7, -1.8), texts[8]);
+        f += write_5(uv3 * .75, vec2(-19.7, -1.8), textIN);
     }
-    f += write_5(uv3 * 0.75, vec2(10.9, 2), texts[9]);
+    f += write_5(uv3 * .75, vec2(10.9, 2.), textMFX);
 
     // show inputs / feedback
-    float line_a_a = rect(uv2, vec2(-7.5, 2), vec2(1.5, 0.1));
+    float line_a_a = rect(uv2, vec2(-7.5, 2.), vec2(1.5, .1));
-    float line_a_b = rect(uv2, vec2(-6.5, 2), vec2(0.5, 0.1)) + rect(uv2, vec2(-8.5, -2), vec2(0.5, 0.1)) + line(uv2, vec2(-7, 2.1), vec2(-8, -2.1), 0.2);
+    float line_a_b = rect(uv2, vec2(-6.5, 2.), vec2(.5, .1)) + rect(uv2, vec2(-8.5, -2), vec2(.5, .1)) + line(uv2, vec2(-7., 2.1), vec2(-8., -2.1), .2);
-    float line_a_f = rect(uv2, vec2(-6.5, 2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, 3.6), vec2(7, 0.1)) + rect(uv2, vec2(-7, 2.8), vec2(0.1, 0.9)) + rect(uv2, vec2(7, 1.8), vec2(0.1, 1.9));
+    float line_a_f = rect(uv2, vec2(-6.5, 2.), vec2(.5, .1)) + rect(uv2, vec2(0., 3.6), vec2(7., .1)) + rect(uv2, vec2(-7., 2.8), vec2(.1, .9)) + rect(uv2, vec2(7., 1.8), vec2(.1, 1.9));
     if (selected_srca == 5 && iInputFormat1 == YUYV_FOURCC) {
         f += line_a_a;
     } else if (selected_srca == 10 && iInputFormat2 == YUYV_FOURCC) {
@@ -262,9 +197,9 @@ vec4 debug(vec2 vUV)
         f += line_a_f;
     }
 
-    float line_b_a = rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(-8.5, 2), vec2(0.5, 0.1)) + line(uv2, vec2(-7, -2.1), vec2(-8, 2.1), 0.2);
+    float line_b_a = rect(uv2, vec2(-6.5, -2.), vec2(.5, .1)) + rect(uv2, vec2(-8.5, 2.), vec2(.5, .1)) + line(uv2, vec2(-7., -2.1), vec2(-8., 2.1), .2);
-    float line_b_b = rect(uv2, vec2(-7.5, -2), vec2(1.5, 0.1));
+    float line_b_b = rect(uv2, vec2(-7.5, -2.), vec2(1.5, .1));
-    float line_b_f = rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, -3.6), vec2(7, 0.1)) + rect(uv2, vec2(-7, -2.8), vec2(0.1, 0.9)) + rect(uv2, vec2(7, -1.8), vec2(0.1, 1.9));
+    float line_b_f = rect(uv2, vec2(-6.5, -2.), vec2(.5, .1)) + rect(uv2, vec2(0., -3.6), vec2(7., .1)) + rect(uv2, vec2(-7., -2.8), vec2(.1, .9)) + rect(uv2, vec2(7., -1.8), vec2(.1, 1.9));
     if (selected_srcb == 5 && iInputFormat1 == YUYV_FOURCC) {
         f += line_b_a;
     } else if (selected_srcb == 10 && iInputFormat2 == YUYV_FOURCC) {
@@ -274,44 +209,44 @@ vec4 debug(vec2 vUV)
     }
 
     // show page
-    f += iPage == 0 ? circle(uv2, vec2(-0.75, -4.1), 0.3) : h_circle(uv2, vec2(-0.75, -4.1), 0.25, 0.1);
+    f += iPage == 0 ? circle(uv2, vec2(-.75, -4.1), .3) : h_circle(uv2, vec2(-.75, -4.1), .25, .1);
-    f += iPage == 1 ? circle(uv2, vec2(0, -4.1), 0.3) : h_circle(uv2, vec2(0, -4.1), 0.20, 0.1);
+    f += iPage == 1 ? circle(uv2, vec2(0., -4.1), .3) : h_circle(uv2, vec2(0., -4.1), .20, .1);
-    f += iPage == 2 ? circle(uv2, vec2(0.75, -4.1), 0.3) : h_circle(uv2, vec2(0.75, -4.1), 0.20, 0.1);
+    f += iPage == 2 ? circle(uv2, vec2(.75, -4.1), .3) : h_circle(uv2, vec2(.75, -4.1), .20, .1);
 
     // show fx values
     float fx_rect = 0;
 
-    f = mix(f, 1 - f, rect(uv2, vec2(-2, 1.1 + 0.9 * fxa_value), vec2(0.9, 0.9 * fxa_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(-2., 1.1 + .9 * fxa_value), vec2(.9, .9 * fxa_value)));
-    f = mix(f, 1 - f, rect(uv2, vec2(-2, -2.9 + 0.9 * fxb_value), vec2(0.9, 0.9 * fxb_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(-2., -2.9 + .9 * fxb_value), vec2(.9, .9 * fxb_value)));
-    f = mix(f, 1 - f, rect(uv2, vec2(5, -0.9 + 0.9 * mfx_value), vec2(0.9, 0.9 * mfx_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(5., -.9 + .9 * mfx_value), vec2(.9, .9 * mfx_value)));
 
     // show mix
-    f += char_at(uv2, vec2(1.55, -0.6), mix_type ? 0x4B : 0x4D);
+    f += char_at(uv2, vec2(1.55, -.6), mix_type ? 0x4B : 0x4D);
-    f = mix(f, 1 - f, rect(uv2, vec2(2, -0.9 + 0.9 * mix_value), vec2(0.9, 0.9 * mix_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(.2, -.9 + .9 * mix_value), vec2(.9, .9 * mix_value)));
 
     // show debug info
-    float v = 0;
+    float v = 0.;
-    float x = 0;
+    float x = 0.;
 
-    x = -15;
+    x = -15.;
-    f += write_5(uv3, vec2(x - 4.5, 13), texts[1]);
+    f += write_5(uv3, vec2(x - 4.5, 13.), textTEMPO);
-    f += write_int(uv3, vec2(x + 1.5, 13), int(iTempo), 3);
+    f += write_int(uv3, vec2(x + 1.5, 13.), int(iTempo), 3);
     v = fract(iBeats);
-    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
+    f += h_rect(uv3, vec2(x, 12.), vec2(4., .5), .2);
-    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
+    f += rect(uv3, vec2(x + 4. * v - 4., 12.), vec2(4. * v, .4));
 
-    x = 15;
+    x = 15.;
     if (iAutoRand > 0) {
-        f += write_5(uv3, vec2(x - 4.5, 13), texts[5]);
+        f += write_5(uv3, vec2(x - 4.5, 13.), textRAND);
-        f += write_int(uv3, vec2(x - 0.5, 13), int(iAutoRandCycle), 5);
+        f += write_int(uv3, vec2(x - .5, 13.), int(iAutoRandCycle), 5);
         v = fract(iBeats / iAutoRandCycle);
     } else {
-        f += write_int(uv3, vec2(x - 0.5, 13), int(iTime), 5);
+        f += write_int(uv3, vec2(x - .5, 13.), int(iTime), 5);
         v = fract(iTime);
-        f += write_5(uv3, vec2(x - 4.5, 13), texts[2]);
+        f += write_5(uv3, vec2(x - 4.5, 13.), textTIME);
     }
-    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
+    f += h_rect(uv3, vec2(x, 12.), vec2(4., .5), .2);
-    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
+    f += rect(uv3, vec2(x + 4. * v - 4., 12), vec2(4. * v, .4));
 
     return vec4(f);
 }

default/inc_functions.glsl

@@ -12,68 +12,68 @@
 // BASICS
 
 float istep(float x, float y) {
-    return 1 - step(x, y);
+    return 1. - step(x, y);
 }
 
 float estep(float x, float y) {
-    return smoothstep(x - 0.0001, x + 0.0001, y);
+    return smoothstep(x - .0001, x + .0001, y);
 }
 
 float iestep(float x, float y) {
-    return 1 - estep(x, y);
+    return 1. - estep(x, y);
 }
 
 float ease(float x) {
-    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
+    return .5 - cos(max(min(x, 1.), 0.) * PI) * .5;
 }
 
 vec2 ease(vec2 x) {
-    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
+    return .5 - cos(max(min(x, 1.), 0.) * PI) * .5;
 }
 
 vec3 ease(vec3 x) {
-    return 0.5 - cos(max(min(x, 1.0), 0.0)*PI) * 0.5;
+    return .5 - cos(max(min(x, 1.), 0.) * PI) * .5;
 }
 
-float saw(float x){
+float saw(float x) {
-    return abs(mod(x+1,2)-1);
+    return abs(mod(x + 1., 2.) - 1.);
 }
 
-vec2 saw(vec2 x){
+vec2 saw(vec2 x) {
-    return abs(mod(x+1,2)-1);
+    return abs(mod(x + 1., 2.) - 1.);
 }
 
-vec3 saw(vec3 x){
+vec3 saw(vec3 x) {
-    return abs(mod(x+1,2)-1);
+    return abs(mod(x + 1., 2.) - 1.);
 }
 
-float cmod(float x, float k){
+float cmod(float x, float k) {
-    return mod(x + k * 0.5, k) - k * 0.5;
+    return mod(x + k * .5, k) - k * .5;
 }
 
-vec2 cmod(vec2 x, float k){
+vec2 cmod(vec2 x, float k) {
-    return mod(x + k * 0.5, k) - k * 0.5;
+    return mod(x + k * .5, k) - k * .5;
 }
 
-vec3 cmod(vec3 x, float k){
+vec3 cmod(vec3 x, float k) {
-    return mod(x + k * 0.5, k) - k * 0.5;
+    return mod(x + k * .5, k) - k * .5;
 }
 
 // COLORS
 
-vec3 col(float x){
+vec3 col(float x) {
     return vec3(
-        .5*(sin(x*2.*PI)+1.),
+        .5 * (sin(x * 2. * PI) + 1.),
-        .5*(sin(x*2.*PI+2.*PI/3.)+1.),
+        .5 * (sin(x * 2. * PI + PI * .6666667) + 1.),
-        .5*(sin(x*2.*PI-2.*PI/3.)+1.)
+        .5 * (sin(x * 2. * PI - PI * .6666667) + 1.)
     );
 }
 
 vec3 shift(vec3 c, float f) {
     return vec3(
-        c.x * (1 - f) + c.y * f,
+        c.x * (1. - f) + c.y * f,
-        c.y * (1 - f) + c.z * f,
+        c.y * (1. - f) + c.z * f,
-        c.z * (1 - f) + c.x * f
+        c.z * (1. - f) + c.x * f
     );
 }
 
@@ -82,115 +82,112 @@ vec3 shift3(vec3 c, float f) {
 }
 
 vec3 mix3(vec3 c1, vec3 c2, vec3 c3, float x) {
-    return istep(0.5, x) * mix(c1, c2, x * 2)
+    return istep(.5, x) * mix(c1, c2, x * 2.)
-        + step(0.5, x) * mix(c2, c3, x * 2 - 1)
+        + step(.5, x) * mix(c2, c3, x * 2. - 1.);
-    ;
 }
 
 vec3 mix4(vec3 c1, vec3 c2, vec3 c3, vec3 c4, float x) {
-    return istep(0.333, x) * mix(c1, c2, x * 3)
+    return istep(.333, x) * mix(c1, c2, x * 3.)
-        + step(0.333, x) * istep(0.667, x) * mix(c2, c3, x * 3 - 1)
+        + step(.333, x) * istep(.667, x) * mix(c2, c3, x * 3. - 1.)
-        + step(0.667, x) * mix(c3, c4, x * 3 - 2);
+        + step(.667, x) * mix(c3, c4, x * 3. - 2.);
     ;
 }
 
 vec3 mix5(vec3 c1, vec3 c2, vec3 c3, vec3 c4, vec3 c5, float x) {
-    return istep(0.25, x) * mix(c1, c2, x * 4)
+    return istep(.25, x) * mix(c1, c2, x * 4.)
-        + step(0.25, x) * istep(0.5, x) * mix(c2, c3, x * 4 - 1)
+        + step(.25, x) * istep(.5, x) * mix(c2, c3, x * 4. - 1.)
-        + step(0.5, x) * istep(0.75, x) * mix(c3, c4, x * 4 - 2)
+        + step(.5, x) * istep(.75, x) * mix(c3, c4, x * 4. - 2.)
-        + step(0.75, x) * mix(c4, c5, x * 4 - 3)
+        + step(.75, x) * mix(c4, c5, x * 4. - 3.);
-    ;
 }
 
 vec3 mix6(vec3 c1, vec3 c2, vec3 c3, vec3 c4, vec3 c5, vec3 c6, float x) {
-    return istep(0.2, x) * mix(c1, c2, x * 5)
+    return istep(.2, x) * mix(c1, c2, x * 5.)
-        + step(0.2, x) * istep(0.4, x) * mix(c2, c3, x * 5 - 1)
+        + step(.2, x) * istep(.4, x) * mix(c2, c3, x * 5. - 1.)
-        + step(0.4, x) * istep(0.6, x) * mix(c3, c4, x * 5 - 2)
+        + step(.4, x) * istep(.6, x) * mix(c3, c4, x * 5. - 2.)
-        + step(0.6, x) * istep(0.8, x) * mix(c4, c5, x * 5 - 3)
+        + step(.6, x) * istep(.8, x) * mix(c4, c5, x * 5. - 3.)
-        + step(0.8, x) * mix(c5, c6, x * 5 - 4)
+        + step(.8, x) * mix(c5, c6, x * 5. - 4.);
-    ;
 }
 
 float mean(vec3 v)
 {
-    return v.x * 0.3333 + v.y * 0.3333 + v.z * 0.3333;
+    return v.x * .3333 + v.y * .3333 + v.z * .3333;
 }
 
 float mean(vec4 v)
 {
-    return v.x * 0.3333 + v.y * 0.3333 + v.z * 0.3333;
+    return v.x * .3333 + v.y * .3333 + v.z * .3333;
 }
 
 // OTHER
 
-mat2 rot(float angle){
+mat2 rot(float angle) {
     return mat2(
-        cos(angle*2.*PI),-sin(angle*2.*PI),
+        cos(angle * 2. * PI), -sin(angle * 2. * PI),
-        sin(angle*2.*PI),cos(angle*2.*PI)
+        sin(angle * 2. * PI), cos(angle * 2. * PI)
     );
 }
 
 // EFFECTS
 
 vec2 lens(vec2 uv, float limit, float power) {
-    return uv * (1 + limit + length(uv * power));
+    return uv * (1. + limit + length(uv * power));
 }
 
 vec2 kal(vec2 uv, float n) {
-    float t = atan(uv.y, uv.x) + PI * 0.5;
+    float t = atan(uv.y, uv.x) + PI * .5;
-    float q = 3.0 / (2.0 * PI);
+    float q = .4774648; // 3. / (2. * PI);
-    t = abs(mod(t + PI / (n), 2 * PI / n) - PI / (n));
+    t = abs(mod(t + PI / n, 2. * PI / n) - PI / n);
     return length(uv) * vec2(
-        cos(t),
+            cos(t),
-        sin(t)
+            sin(t)
-    );
+        );
 }
 
 vec2 kal2(vec2 uv, float n) {
-    float t = atan(uv.y, uv.x) + PI * 0.5;
+    float t = atan(uv.y, uv.x) + PI * .5;
-    float t2 = abs(mod(t + PI / n, 2 * PI / n) - PI / n);
+    float t2 = abs(mod(t + PI / n, 2. * PI / n) - PI / n);
     return length(uv) * vec2(
-        cos(t2),
+            cos(t2),
-        sin(t2)
+            sin(t2)
-    );
+        );
 }
 
 // NOISE
 
 float noise(vec2 n)
 {
-    const vec2 d = vec2(0, 1);
+    const vec2 d = vec2(0., 1.);
     vec2 b = floor(n);
     vec2 f = fract(n);
-    f *= f * (3 - 2 * f);
+    f *= f * (3. - 2. * f);
     return mix(mix(rand(b), rand(b + d.yx), f.x), mix(rand(b + d.xy), rand(b + d.yy), f.x), f.y);
 }
 
 float noise_f(vec2 n, int f)
 {
-    float o = noise(n) / 2;
+    float o = noise(n) * .5;
-    o += mix(o, noise(n * 2), f > 1 ? 1 : 0) / 4;
+    o += mix(o, noise(n * 2.), f > 1. ? 1. : 0.) * .25;
-    o += mix(o, noise(n * 4), f > 2 ? 1 : 0) / 8;
+    o += mix(o, noise(n * 4.), f > 2. ? 1. : 0.) * .125;
-    o += mix(o, noise(n * 8), f > 3 ? 1 : 0) / 16;
+    o += mix(o, noise(n * 8.), f > 3. ? 1. : 0.) * .0625;
-    o += mix(o, noise(n * 16), f > 4 ? 1 : 0) / 32;
+    o += mix(o, noise(n * 16.), f > 4. ? 1. : 0.) * .03125;
     return o;
 }
 
 // VORONOI
 
 float v_index(vec2 uv) {
-    return floor(uv.x) + floor(uv.y) * 45;
+    return floor(uv.x) + floor(uv.y) * 45.;
 }
 
-vec2 v_pos(float i) {
+vec2 v_pos(float i, int seed, float time) {
-    int iTimeId = int(iBeats);
+    int iTimeId = int(time);
-    float iTimeV = iBeats - iTimeId;
+    float iTimeV = time - iTimeId;
 
-    float x0 = rand(i + 823 + iTimeId);
+    float x0 = rand(i + seed + iTimeId);
-    float y0 = rand(i + 328 + iTimeId);
+    float y0 = rand(i + seed + 10. + iTimeId);
 
-    float x1 = rand(i + 823 + iTimeId + 1);
+    float x1 = rand(i + seed + iTimeId + 1.);
-    float y1 = rand(i + 328 + iTimeId + 1);
+    float y1 = rand(i + seed + 10. + iTimeId + 1.);
 
     return vec2(
         mix(x0, x1, ease(ease(iTimeV))),
@@ -198,16 +195,17 @@ vec2 v_pos(float i) {
     );
 }
 
-vec4 voronoi(vec2 uv, float dist) {
+vec4 voronoi(vec2 uv, float dist, int seed, float time) {
-    vec4 o = vec4(0, 0, 2, 0);
+    vec4 o = vec4(0., 0., 2., 0.);
-    vec4 t = vec4(0, 0, 2, 0);
+    vec4 t = vec4(0., 0., 2., 0.);
     float d, i;
     vec2 uv2, p;
-    for (int dx = -1; dx <= 1; dx++) {
+    int dx, dy;
-        for (int dy = -1; dy <= 1; dy++) {
+    for (dx = -1; dx <= 1; dx++) {
+        for (dy = -1; dy <= 1; dy++) {
             uv2 = vec2(floor(uv.x) + dx, floor(uv.y) + dy);
             i = v_index(uv2);
-            p = uv2 + v_pos(i) * dist;
+            p = uv2 + v_pos(i, seed, time) * dist;
             d = length(p - uv);
             if (d < o.z) {
                 t = o;
@@ -227,21 +225,21 @@ float circle(vec2 uv, vec2 c, float size) {
 }
 
 float h_circle(vec2 uv, vec2 c, float size, float k) {
-    return circle(uv, c, size + k * 0.5) - circle(uv, c, size - k * 0.5);
+    return circle(uv, c, size + k * .5) - circle(uv, c, size - k * .5);
 }
 
 float stripe(float x, float k1, float k2)
 {
-    return k2 > k1 ? (1 - step(x, k1)) * (step(x, k2)) : ((1 - step(x, k2)) * (step(x, k1)));
+    return k2 > k1 ? (1. - step(x, k1)) * (step(x, k2)) : ((1. - step(x, k2)) * (step(x, k1)));
 }
 
 float capsule(vec2 uv, float r, float d, float a)
 {
     uv *= rot(a);
     float f1 = step(uv.x, r) * step(-uv.x, r) * step(uv.y, d - r) * step(-uv.y, d - r);
-    float f2 = step(length(uv - vec2(0, d - r)), r);
+    float f2 = step(length(uv - vec2(0., d - r)), r);
-    float f3 = step(length(uv + vec2(0, d - r)), r);
+    float f3 = step(length(uv + vec2(0., d - r)), r);
-    return min(1, f1 + f2 + f3);
+    return min(1., f1 + f2 + f3);
 }
 
 float rect(vec2 uv, vec2 c, vec2 size) {
@@ -250,7 +248,7 @@ float rect(vec2 uv, vec2 c, vec2 size) {
 }
 
 float h_rect(vec2 uv, vec2 c, vec2 size, float k) {
-    return rect(uv, c, size + k * 0.5) - rect(uv, c, size - k * 0.5);
+    return rect(uv, c, size + k * .5) - rect(uv, c, size - k * .5);
 }
 
 float line(vec2 uv, vec2 p1, vec2 p2, float thick) {
@@ -260,28 +258,31 @@ float line(vec2 uv, vec2 p1, vec2 p2, float thick) {
 
     if (abs(p.y) > abs(p.x)) {
         k = vec2(
-            uv.x - p.x * uv.y / p.y,
+                uv.x - p.x * uv.y / p.y,
-            uv.y / p.y
+                uv.y / p.y
-        );
+            );
 
-        return step(k.x, thick * 0.5)
+        return step(k.x, thick * .5)
-            * step(-k.x, thick * 0.5)
+            * step(-k.x, thick * .5)
-            * step(k.y, 1)
+            * step(k.y, 1.)
-            * (1 - step(k.y, 0));
+            * (1. - step(k.y, 0.));
     } else {
         k = vec2(
-            uv.x / p.x,
+                uv.x / p.x,
-            uv.y - p.y * uv.x / p.x
+                uv.y - p.y * uv.x / p.x
-        );
+            );
 
-        return step(k.y, thick * 0.5)
+        return step(k.y, thick * .5)
-            * step(-k.y, thick * 0.5)
+            * step(-k.y, thick * .5)
-            * step(k.x, 1)
+            * step(k.x, 1.)
-            * (1 - step(k.x, 0));
+            * (1. - step(k.x, 0.));
     }
 }
 
-const mat2x2 ISOMETRIC_MATRIX = {{0.5, 1}, {0.5, -1}};
+const mat2x2 ISOMETRIC_MATRIX = mat2x2(
+        .5, 1.,
+        .5, -1.
+    );
 
 vec2 iso(vec2 p) {
     return p * ISOMETRIC_MATRIX;
@@ -302,14 +303,14 @@ vec2 iso(vec3 uv) {
 
 vec4 reframe(sampler2D tex, vec2 uv)
 {
-    uv = uv * vec2(iResolution.y / iResolution.x, 1)  + .5;
+    uv = uv * vec2(iResolution.y / iResolution.x, 1.) + .5;
     uv = saw(uv);
     return texture(tex, uv);
 }
 
 vec4 reframe_b(sampler2D tex, vec2 uv)
 {
-    uv = uv * vec2(iResolution.y / iResolution.x, 1)  + .5;
+    uv = uv * vec2(iResolution.y / iResolution.x, 1.) + .5;
     return texture(tex, uv);
 }
 
@@ -317,11 +318,11 @@ vec4 kernel(sampler2D tex, vec2 uv, mat3x3 k, float spm)
 {
     int x, y;
     vec2 offset;
-    vec4 sum = vec4(0);
+    vec4 sum = vec4(0.);
     for (y = -1; y <= 1; ++y) {
         for (x = -1; x <= 1; ++x) {
             offset = vec2(x, y) * spm;
-            if (abs(k[x + 1][y + 1]) > 0) {
+            if (abs(k[x + 1][y + 1]) > 0.) {
                 sum += k[x + 1][y + 1] * texture(tex, uv + offset);
             }
         }
@@ -333,7 +334,7 @@ vec4 kernel(sampler2D tex, vec2 uv, mat3x3 k, float spm)
 
 float gaussian_weight(float x, float sigma)
 {
-    return exp(-(x * x) / (2.0 * sigma * sigma));
+    return exp(-(x * x) / (2. * sigma * sigma));
 }
 
 vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma, float bloom)
@@ -341,8 +342,8 @@ vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma
     int x, y;
     vec2 offset;
     float w;
-    vec4 sum = vec4(0);
+    vec4 sum = vec4(0.);
-    float weight_sum = 0;
+    float weight_sum = 0.;
     for (y = -kernel_size; y <= kernel_size; ++y) {
         for (x = -kernel_size; x <= kernel_size; ++x) {
             offset = vec2(x, y) * spm;
@@ -356,17 +357,17 @@ vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma
 
 vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm, float sigma)
 {
-    return gauss(tex, uv, kernel_size, spm, sigma, 1.0);
+    return gauss(tex, uv, kernel_size, spm, sigma, 1.);
 }
 
 vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size, float spm)
 {
-    return gauss(tex, uv, kernel_size, spm, 2.0);
+    return gauss(tex, uv, kernel_size, spm, 2.);
 }
 
 vec4 gauss(sampler2D tex, vec2 uv, const int kernel_size)
 {
-    return gauss(tex, uv, kernel_size, 1 / max(iResolution.x, iResolution.y));
+    return gauss(tex, uv, kernel_size, 1. / max(iResolution.x, iResolution.y));
 }
 
 vec4 gauss(sampler2D tex, vec2 uv)
@@ -377,23 +378,23 @@ vec4 gauss(sampler2D tex, vec2 uv)
 float dither(vec2 uv, float x)
 {
     bool o = false;
-    o = o || x * 16 >= 1 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16. >= 1. && floor(mod(uv.x, 4.)) == 0. && floor(mod(uv.y, 4.)) == 0.;
-    o = o || x * 16 >= 2 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16. >= 2. && floor(mod(uv.x, 4.)) == 2. && floor(mod(uv.y, 4.)) == 2.;
-    o = o || x * 16 >= 3 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16. >= 3. && floor(mod(uv.x, 4.)) == 0. && floor(mod(uv.y, 4.)) == 2.;
-    o = o || x * 16 >= 4 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16. >= 4. && floor(mod(uv.x, 4.)) == 2. && floor(mod(uv.y, 4.)) == 0.;
-    o = o || x * 16 >= 5 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16. >= 5. && floor(mod(uv.x, 4.)) == 1. && floor(mod(uv.y, 4.)) == 1.;
-    o = o || x * 16 >= 6 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16. >= 6. && floor(mod(uv.x, 4.)) == 3. && floor(mod(uv.y, 4.)) == 3.;
-    o = o || x * 16 >= 7 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16. >= 7. && floor(mod(uv.x, 4.)) == 1. && floor(mod(uv.y, 4.)) == 3.;
-    o = o || x * 16 >= 8 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16. >= 8. && floor(mod(uv.x, 4.)) == 3. && floor(mod(uv.y, 4.)) == 1.;
-    o = o || x * 16 >= 9 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16. >= 9. && floor(mod(uv.x, 4.)) == 1. && floor(mod(uv.y, 4.)) == 0.;
-    o = o || x * 16 >= 10 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16. >= 10. && floor(mod(uv.x, 4.)) == 3. && floor(mod(uv.y, 4.)) == 2.;
-    o = o || x * 16 >= 11 && floor(mod(uv.x, 4)) == 1 && floor(mod(uv.y, 4)) == 2;
+    o = o || x * 16. >= 11. && floor(mod(uv.x, 4.)) == 1. && floor(mod(uv.y, 4.)) == 2.;
-    o = o || x * 16 >= 12 && floor(mod(uv.x, 4)) == 3 && floor(mod(uv.y, 4)) == 0;
+    o = o || x * 16. >= 12. && floor(mod(uv.x, 4.)) == 3. && floor(mod(uv.y, 4.)) == 0.;
-    o = o || x * 16 >= 13 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16. >= 13. && floor(mod(uv.x, 4.)) == 0. && floor(mod(uv.y, 4.)) == 1.;
-    o = o || x * 16 >= 14 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16. >= 14. && floor(mod(uv.x, 4.)) == 2. && floor(mod(uv.y, 4.)) == 3.;
-    o = o || x * 16 >= 15 && floor(mod(uv.x, 4)) == 0 && floor(mod(uv.y, 4)) == 3;
+    o = o || x * 16. >= 15. && floor(mod(uv.x, 4.)) == 0. && floor(mod(uv.y, 4.)) == 3.;
-    o = o || x * 16 >= 16 && floor(mod(uv.x, 4)) == 2 && floor(mod(uv.y, 4)) == 1;
+    o = o || x * 16. >= 16. && floor(mod(uv.x, 4.)) == 2. && floor(mod(uv.y, 4.)) == 1.;
-    return o ? 1 : 0;
+    return o ? 1. : 0.;
 }
 
 #endif

default/inc_fx.glsl

@@ -1,19 +1,20 @@
 #include inc_res.glsl
 #include inc_magic.glsl
 #include inc_functions.glsl
+#include inc_cp437.glsl
 
 #ifndef INC_FX
 #define INC_FX
 
 vec4 fx_master(vec3 c0, vec3 c, int seed, vec3 m0) {
-    float fx = magic(m0.xy, vec3(1,0,0), seed);
+    float fx = magic(m0.xy, vec3(1., 0., 0.), seed);
-    bool invert = magic_trigger(vec3(m0.z, 0, 0), seed);
+    bool invert = magic_trigger(vec3(m0.z, 0., 0.), seed);
 
     vec3 c_out = mix(c0, c, fx);
 
-    c_out = mix(c_out, 1 - c_out, invert ? 1 : 0);
+    c_out = mix(c_out, 1. - c_out, invert ? 1. : 0.);
 
-    return vec4(c_out, 1.0);
+    return vec4(c_out, 1.);
 }
 
 subroutine vec4 fx_stage_sub(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0);
@@ -29,29 +30,29 @@ subroutine(fx_stage_sub) vec4 fx_1(vec2 vUV, sampler2D previous, sampler2D feedb
 
     // controls
 
-    float hue = magic(f1, b1, seed + 10);
+    float hue = magic(f1, b1, seed + 10.);
-    float saturation = magic(f2, b2, seed + 20);
+    float saturation = magic(f2, b2, seed + 20.);
-    float light = magic(f3, b3, seed + 30);
+    float light = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
     vec3 c = c0;
     c = shift3(c, hue);
-    c *= 1 + saturation;
+    c *= 1. + saturation;
-    c = mix(c + light * 2.0, c - (1 - light) * 2.0, step(0.5, light));
+    c = mix(c + light * 2., c - (1. - light) * 2., step(.5, light));
 
     return fx_master(c0, c, seed, m0);
 }
 
 // FX 2 : feedback + shift
-vec4 fx_shift(vec2 vUV, sampler2D src0, sampler2D src1, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
+subroutine(fx_stage_sub) vec4 fx_shift(vec2 vUV, sampler2D src0, sampler2D src1, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
 {
     // start
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
@@ -64,7 +65,7 @@ vec4 fx_shift(vec2 vUV, sampler2D src0, sampler2D src1, int seed, vec3 b1, vec2
     vec3 c0 = texture(src0, uv0).xyz;
 
     vec2 uv2 = uv1;
-    uv2 = mix(uv2 * (1 + zoom * 2), uv2 * (zoom), step(0.5, zoom));
+    uv2 = mix(uv2 * (1 + zoom * 2), uv2 * (zoom), step(.5, zoom));
     uv2 += vec2(x_shift * ratio, y_shift) * 2;
     vec3 c = reframe(src1, uv2).xyz;
 
@@ -115,28 +116,28 @@ subroutine(fx_stage_sub) vec4 fx_5(vec2 vUV, sampler2D previous, sampler2D feedb
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float pixel_size = magic(f1, b1, seed + 10);
+    float pixel_size = magic(f1, b1, seed + 10.);
-    float quantize = magic(f2, b2, seed + 20);
+    float quantize = magic(f2, b2, seed + 20.);
-    bool quantize_trigger = magic_trigger(b2, seed + 20);
+    bool quantize_trigger = magic_trigger(b2, seed + 20.);
-    float blur = magic(f3, b3, seed + 30);
+    float blur = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
     vec2 uv2 = uv1;
-    float pixel = (1 - pixel_size) * 250 + 25;
+    float pixel = (1., - pixel_size) * 250. + 25.;
     uv2 = round(uv2 * pixel) / pixel;
-    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, 0.005 * blur).xyz;
+    vec3 c = gauss(previous, uv2 * vec2(1. / ratio, 1.)  + .5, 3, .005 * blur).xyz;
-    float colors = (1 - quantize) * 10 + 1;
+    float colors = (1. - quantize) * 10. + 1.;
     if (quantize_trigger) {
         c = round(c * colors) / colors;
     }
-    // c = mix(c, 1 - c, step(noise_f(uv0 * 10 + vec2(iTime * 0.1, 0), 5), 0.5));
+    // c = mix(c, 1 - c, step(noise_f(uv0 * 10 + vec2(iTime * .1, 0), 5), .5));
 
     return fx_master(c0, c, seed, m0);
 }
@@ -148,7 +149,7 @@ subroutine(fx_stage_sub) vec4 fx_6(vec2 vUV, sampler2D previous, sampler2D feedb
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
@@ -168,7 +169,7 @@ subroutine(fx_stage_sub) vec4 fx_6(vec2 vUV, sampler2D previous, sampler2D feedb
     if (pixel_size_trigger) {
         uv2 = floor(uv2 * k1) / k1;
     }
-    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, 0.005 * blur).xyz;
+    vec3 c = gauss(previous, uv2 * vec2(1 / ratio, 1)  + .5, 3, .005 * blur).xyz;
     float k3 = pow(2, 5 - floor(quantize * 5));
     if (quantize_trigger) {
         c *= k3;
@@ -190,26 +191,26 @@ subroutine(fx_stage_sub) vec4 fx_7(vec2 vUV, sampler2D previous, sampler2D feedb
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float lens_v = magic(f1, b1, seed + 10);
+    float lens_v = magic(f1, b1, seed + 10.);
-    float horizontal_noise = magic(f2, b2, seed + 20);
+    float horizontal_noise = magic(f2, b2, seed + 20.);
-    float zoom = magic(f3, b3, seed + 30);
+    float zoom = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
     vec2 uv2 = uv1;
-    float k1 = lens_v * 0.5;
+    float k1 = lens_v * .5;
-    uv2 *= 1 + zoom * 2;
+    uv2 *= 1. + zoom * 2.;
     uv2 = lens(uv2, -k1, k1);
     float k = horizontal_noise;
     vec3 c = vec3(
-        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1000 + iTime) - 0.5) * k * 0.1)).x,
+        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1000. + iTime) - .5) * k * .1)).x,
-        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1100 + iTime) - 0.5) * k * 0.1)).y,
+        reframe_b(previous, uv2 + vec2((rand(uv0.y * 1100. + iTime) - .5) * k * .1)).y,
         reframe_b(previous, uv2).z
     );
 
@@ -223,30 +224,28 @@ subroutine(fx_stage_sub) vec4 fx_8(vec2 vUV, sampler2D previous, sampler2D feedb
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float axes = magic(f1, b1, seed + 10);
+    float axes = magic(f1, b1, seed + 10.);
-    float axes_trigger = magic_b(b1, seed + 10).x;
+    float axes_trigger = magic_b(b1, seed + 10.).x;
-    float rotation = magic(f2, b2, seed + 20);
+    float rotation = magic(f2, b2, seed + 20.);
-    float h_scroll = magic(f3, b3, seed + 30);
+    float h_scroll = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
     vec2 uv2 = uv1;
-    uv2 = mix(uv2, kal2(uv2 * rot(0.25), floor(axes * 9 + 1)) * vec2(1, -2) + vec2(0, -0.5), axes_trigger);
+    uv2 = mix(uv2, kal2(uv2 * rot(.25), floor(axes * 9. + 1.)) * vec2(1., -2.) + vec2(0., -.5), axes_trigger);
     uv2 *= rot(rotation);
-    uv2.x = (saw(uv2.x / ratio + 0.5 + h_scroll * 2) - 0.5) * ratio;
+    uv2.x = (saw(uv2.x / ratio + .5 + h_scroll * 2.) - .5) * ratio;
     vec3 c = reframe(previous, uv2).xyz;
 
     return fx_master(c0, c, seed, m0);
 }
 
-#include inc_cp437.glsl
-
 // FX 9 : cp437
 subroutine(fx_stage_sub) vec4 fx_9(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
 {
@@ -254,35 +253,35 @@ subroutine(fx_stage_sub) vec4 fx_9(vec2 vUV, sampler2D previous, sampler2D feedb
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = magic(f1, b1, seed + 10);
+    float zoom = magic(f1, b1, seed + 10.);
-    vec2 charset = magic_f(f2, b2, seed + 20);
+    vec2 charset = magic_f(f2, b2, seed + 20.);
-    vec3 charset_ctrl = magic_b(b2, seed + 20);
+    vec3 charset_ctrl = magic_b(b2, seed + 20.);
-    float char_delta = magic(f3, b3, seed + 30);
+    float char_delta = magic(f3, b3, seed + 30.);
-    float t = magic(seed + 40);
+    float t = magic(seed + 40.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
     vec2 uv2 = uv1;
-    float k1 = 100 * (1 - zoom) + 10;
+    float k1 = 100. * (1. - zoom) + 10.;
-    float inv_k = 1 / k1;
+    float inv_k = 1. / k1;
     uv2 = floor(uv2 * k1) * inv_k;
-    int start_char = charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
+    int start_char = charset_ctrl.x > 0. ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
-    int char_span = int((charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
+    int char_span = int((charset_ctrl.x > 0. ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
-    char_span = int(char_span * max(1 - charset.y, 1 / (char_span * 0.75)));
+    char_span = int(char_span * max(1. - charset.y, 1. / (char_span * .75)));
     ivec2 uv2i = ivec2(uv2 * k1);
-    int code = ((charset_ctrl.y < 1 || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
+    int code = ((charset_ctrl.y < 1. || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
-    vec3 c = reframe(previous, uv2 + vec2(0, 0) * inv_k * 0.125).xyz * 0.2
+    vec3 c = reframe(previous, uv2 + vec2(0., 0.) * inv_k * .125).xyz * .2
-        + reframe(previous, uv2 + vec2(1, 0) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(1., 0.) * inv_k * .125).xyz * .2
-        + reframe(previous, uv2 + vec2(1, 1) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(1., 1.) * inv_k * .125).xyz * .2
-        + reframe(previous, uv2 + vec2(0, 1) * inv_k * 0.125).xyz * 0.2
+        + reframe(previous, uv2 + vec2(0., 1.) * inv_k * .125).xyz * .2
-        + reframe(previous, uv2 + vec2(0.5, 0.5) * inv_k * 0.125).xyz * 0.2;
+        + reframe(previous, uv2 + vec2(.5, .5) * inv_k * .125).xyz * .2;
-    c = char(mod(uv1 * k1, 1), code) ? c : vec3(0);
+    c = char(mod(uv1 * k1, 1.), code) ? c : vec3(0.);
 
     return fx_master(c0, c, seed, m0);
 }
@@ -294,22 +293,22 @@ subroutine(fx_stage_sub) vec4 fx_10(vec2 vUV, sampler2D previous, sampler2D feed
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float lens_v1 = magic(f1, b1, seed + 10);
+    float lens_v1 = magic(f1, b1, seed + 10.);
-    float lens_v2 = magic(f2, b2, seed + 20);
+    float lens_v2 = magic(f2, b2, seed + 20.);
-    float zoom = magic(f3, b3, seed + 30);
+    float zoom = magic(f3, b3, seed + 30.);
-    float k = magic(seed + 40);
+    float k = magic(seed + 40.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
     vec2 uv2 = uv1;
-    uv2 *= 1 + zoom * 2;
+    uv2 *= 1. + zoom * 2.;
-    uv2 = lens(uv2, -lens_v2 * 10, lens_v1 * 10);
+    uv2 = lens(uv2, -lens_v2 * 10., lens_v1 * 10.);
     vec3 c = reframe(previous, uv2).xyz;
 
     return fx_master(c0, c, seed, m0);
@@ -322,13 +321,13 @@ subroutine(fx_stage_sub) vec4 fx_11(vec2 vUV, sampler2D previous, sampler2D feed
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float wall1 = magic(f1, b1, seed + 10);
+    float wall1 = magic(f1, b1, seed + 10.);
-    float wall2 = magic(f2, b2, seed + 20);
+    float wall2 = magic(f2, b2, seed + 20.);
-    float angle = magic(f3, b3, seed + 30);
+    float angle = magic(f3, b3, seed + 30.);
 
     // logic
 
@@ -336,8 +335,8 @@ subroutine(fx_stage_sub) vec4 fx_11(vec2 vUV, sampler2D previous, sampler2D feed
 
     vec2 uv2 = uv1;
     uv2 *= rot(angle);
-    uv2.y = min(uv2.y, 1 - wall1);
+    uv2.y = min(uv2.y, 1. - wall1);
-    uv2.y = -min(-uv2.y, 1 - wall2);
+    uv2.y = -min(-uv2.y, 1. - wall2);
     uv2 *= rot(-angle);
     vec3 c = reframe(previous, uv2).xyz;
 
@@ -351,33 +350,33 @@ subroutine(fx_stage_sub) vec4 fx_12(vec2 vUV, sampler2D previous, sampler2D feed
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - 0.5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float pixel_size = magic(f1, b1, seed + 10);
+    float pixel_size = magic(f1, b1, seed + 10.);
-    bool pixel_size_trigger = magic_trigger(b1, seed + 10);
+    bool pixel_size_trigger = magic_trigger(b1, seed + 10.);
-    f2 = magic_f(f2, b2, seed + 20);
+    f2 = magic_f(f2, b2, seed + 20.);
-    int rule = int(f2.x * 12);
+    int rule = int(f2.x * 12.);
-    float threshold = f2.y * 0.9 + 0.05;
+    float threshold = f2.y * .9 + .05;
-    float fb = magic(f3, b3, seed + 30);
+    float fb = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
     vec2 uv2 = uv1;
-    float k1 = pow(2, 9 - floor(pixel_size * 5));
+    float k1 = pow(2., 9. - floor(pixel_size * 5.));
-    float p = 1 / k1;
+    float p = 1. / k1;
     uv2 = round(uv2 * k1) / k1;
     vec3 c1 = mix(
-        reframe(previous, uv2 + vec2(0.5, 0.5) * p).xyz,
+        reframe(previous, uv2 + vec2(.5, .5) * p).xyz,
-        reframe(feedback, uv2 + vec2(0.5, 0.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(.5, .5) * p).xyz,
         fb
     );
     vec3 c2 = mix(
-        reframe(previous, uv2 + vec2(1.5, 0.5) * p).xyz,
+        reframe(previous, uv2 + vec2(1.5, .5) * p).xyz,
-        reframe(feedback, uv2 + vec2(1.5, 0.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(1.5, .5) * p).xyz,
         fb
     );
     vec3 c3 = mix(
@@ -386,33 +385,33 @@ subroutine(fx_stage_sub) vec4 fx_12(vec2 vUV, sampler2D previous, sampler2D feed
         fb
     );
     vec3 c4 = mix(
-        reframe(previous, uv2 + vec2(0.5, 1.5) * p).xyz,
+        reframe(previous, uv2 + vec2(.5, 1.5) * p).xyz,
-        reframe(feedback, uv2 + vec2(0.5, 1.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(.5, 1.5) * p).xyz,
         fb
     );
     vec3 c5 = mix(
-        reframe(previous, uv2 + vec2(-0.5, 1.5) * p).xyz,
+        reframe(previous, uv2 + vec2(-.5, 1.5) * p).xyz,
-        reframe(feedback, uv2 + vec2(-0.5, 1.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(-.5, 1.5) * p).xyz,
         fb
     );
     vec3 c6 = mix(
-        reframe(previous, uv2 + vec2(-0.5, 0.5) * p).xyz,
+        reframe(previous, uv2 + vec2(-.5, .5) * p).xyz,
-        reframe(feedback, uv2 + vec2(-0.5, 0.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(-.5, .5) * p).xyz,
         fb
     );
     vec3 c7 = mix(
-        reframe(previous, uv2 + vec2(-0.5, -0.5) * p).xyz,
+        reframe(previous, uv2 + vec2(-.5, -.5) * p).xyz,
-        reframe(feedback, uv2 + vec2(-0.5, -0.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(-.5, -.5) * p).xyz,
         fb
     );
     vec3 c8 = mix(
-        reframe(previous, uv2 + vec2(0.5, -0.5) * p).xyz,
+        reframe(previous, uv2 + vec2(.5, -.5) * p).xyz,
-        reframe(feedback, uv2 + vec2(0.5, -0.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(.5, -.5) * p).xyz,
         fb
     );
     vec3 c9 = mix(
-        reframe(previous, uv2 + vec2(-0.5, -0.5) * p).xyz,
+        reframe(previous, uv2 + vec2(-.5, -.5) * p).xyz,
-        reframe(feedback, uv2 + vec2(-0.5, -0.5) * p).xyz,
+        reframe(feedback, uv2 + vec2(-.5, -.5) * p).xyz,
         fb
     );
     bool alive = mean(c1) >= threshold;
@@ -453,7 +452,7 @@ subroutine(fx_stage_sub) vec4 fx_12(vec2 vUV, sampler2D previous, sampler2D feed
         alive = n >= 6 || !alive && n == 4 || alive && (n == 3 || n == 5);
     }
 
-    vec3 cout = vec3(alive ? 1 : 0);
+    vec3 cout = vec3(alive ? 1. : 0.);
 
     return fx_master(c0, cout, seed, m0);
 }
@@ -465,20 +464,20 @@ subroutine(fx_stage_sub) vec4 fx_13(vec2 vUV, sampler2D previous, sampler2D feed
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float sx = magic(f1, b1, seed + 10) * 2;
+    float sx = magic(f1, b1, seed + 10.) * 2.;
-    float sy = magic(f2, b2, seed + 20) * 2;
+    float sy = magic(f2, b2, seed + 20.) * 2.;
-    float disp = 0.005 * magic(f3, b3, seed + 30);
+    float disp = .005 * magic(f3, b3, seed + 30.);
 
     // logic
 
     vec3 c0 = texture(previous, uv0).xyz;
 
-    const mat3x3 sobelx = {{-1, -2, -1}, {0, 0, 0}, {1, 2, 1}};
+    const mat3x3 sobelx = mat3x3(-1., -2., -1., 0., 0., 0., 1., 2., 1.);
-    const mat3x3 sobely = {{-1, 0, 1}, {-2, 0, 2}, {-1, 0, 1}};
+    const mat3x3 sobely = mat3x3(-1., 0., 1., -2., 0., 2., -1., 0., 1.);
 
     mat3x3 sobel = sobelx * sx + sobely * sy;
 
@@ -494,13 +493,13 @@ subroutine(fx_stage_sub) vec4 fx_14(vec2 vUV, sampler2D previous, sampler2D feed
 
 	vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = 1 + magic(f1, b1, seed + 10) * 9;
+    float zoom = 1 + magic(f1, b1, seed + 10.) * 9.;
-    float h_scroll = magic(f2, b2, seed + 20);
+    float h_scroll = magic(f2, b2, seed + 20.);
-    float angle = magic(f3, b3, seed + 30);
+    float angle = magic(f3, b3, seed + 30.);
 
     // logic
 
@@ -512,11 +511,11 @@ subroutine(fx_stage_sub) vec4 fx_14(vec2 vUV, sampler2D previous, sampler2D feed
 
     uv3 *= rot(angle);
 
-    uv3 += vec2(h_scroll, 0);
+    uv3 += vec2(h_scroll, 0.);
 
     uv3 *= round(zoom);
 
-    vec2 umax = vec2(round(zoom), 300);
+    vec2 umax = vec2(round(zoom), 300.);
 
     vec3 c = reframe(previous, mod(uv3, umax)).xyz;
 
@@ -526,33 +525,33 @@ subroutine(fx_stage_sub) vec4 fx_14(vec2 vUV, sampler2D previous, sampler2D feed
 // FX 15 : Random
 subroutine(fx_stage_sub) vec4 fx_15(vec2 vUV, sampler2D previous, sampler2D feedback, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3, vec3 m0)
 {
-	int fx = int(randTime(seed + 100) * 14);
+	int fx = int(randTime(seed + 100.) * 14.) + 1;
 
-    if (fx == 0) {
+    if (fx == 1) {
         return fx_1(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
-    } else if (fx == 1) {
-        return fx_2(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 2) {
-        return fx_3(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_2(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 3) {
-        return fx_4(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_3(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 4) {
-        return fx_5(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_4(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 5) {
-        return fx_6(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_5(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 6) {
-        return fx_7(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_6(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 7) {
-        return fx_8(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_7(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 8) {
-        return fx_9(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_8(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 9) {
-        return fx_10(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_9(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 10) {
-        return fx_11(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_10(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 11) {
-        return fx_12(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+        return fx_11(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else if (fx == 12) {
+        return fx_12(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
+    } else if (fx == 13) {
         return fx_13(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);
     } else {
         return fx_14(vUV, previous, feedback, seed, b1, f1, b2, f2, b3, f3, m0);

default/inc_magic.glsl

@@ -3,75 +3,75 @@
 #ifndef INC_MAGIC
 #define INC_MAGIC
 
-vec2 magic_f(vec2 F, vec3 B, float i)
+vec2 magic_f(vec2 f, vec3 b, float i)
 {
     return vec2(
-        mix(F.x, randTime(i + 1), min(1, B.z)),
+        mix(f.x, randTime(i + 1.), min(1., b.z)),
-        mix(F.y, randTime(i + 2), min(1, B.z))
+        mix(f.y, randTime(i + 2.), min(1., b.z))
     );
 }
 
 vec2 magic_f(float i)
 {
-    return magic_f(vec2(0), vec3(0, 0, 1), i);
+    return magic_f(vec2(0.), vec3(0., 0., 1.), i);
 }
 
-vec3 magic_b(vec3 B, float i)
+vec3 magic_b(vec3 b, float i)
 {
     return vec3(
-        mix(B.x, step(0.2, randTime(i + 3)), min(1, B.z)),
+        mix(b.x, step(.2, randTime(i + 3.)), min(1., b.z)),
-        mix(B.y, step(0.5, randTime(i + 4)), min(1, B.z)),
+        mix(b.y, step(.5, randTime(i + 4.)), min(1., b.z)),
-        min(1, B.z)
+        min(1., b.z)
     );
 }
 
 vec3 magic_b(float i)
 {
-    return magic_b(vec3(0, 0, 1), i);
+    return magic_b(vec3(0., 0., 1.), i);
 }
 
-bool magic_trigger(vec3 B, float i)
+bool magic_trigger(vec3 b, float i)
 {
-    return magic_b(B, i).x > 0;
+    return magic_b(b, i).x > 0.;
 }
 
 bool magic_trigger(float i)
 {
-    return magic_b(i).x > 0;
+    return magic_b(i).x > 0.;
 }
 
-float magic(vec2 F, vec3 B, float i)
+float magic(vec2 f, vec3 b, float i)
 {
-    vec2 f = magic_f(F, B, i);
+    vec2 mf = magic_f(f, b, i);
-    vec3 b = magic_b(B, i);
+    vec3 mb = magic_b(b, i);
 
-    return mix(0, f.x * mix(1 - modTime(f.y), cosTime(f.y) * 0.5 + 0.5, b.y), b.x);
+    return mix(0., mf.x * mix(1. - modTime(mf.y), cosTime(mf.y) * .5 + .5, mb.y), mb.x);
 }
 
-float fmagic(vec2 F, vec3 B, float i)
+float fmagic(vec2 f, vec3 b, float i)
 {
-    vec2 f = magic_f(F, B, i);
+    vec2 mf = magic_f(f, b, i);
-    vec3 b = magic_b(B, i);
+    vec3 mb = magic_b(b, i);
 
-    return f.x * mix(1 - modTime(f.y), cosTime(f.y) * 0.5 + 0.5, b.y);
+    return mf.x * mix(1. - modTime(mf.y), cosTime(mf.y) * .5 + .5, mb.y);
 }
 
 float magic(float i)
 {
-    return magic(vec2(0), vec3(0, 0, 1), i);
+    return magic(vec2(0.), vec3(0., 0., 1.), i);
 }
 
-float magic_reverse(vec2 F, vec3 B, float i)
+float magic_reverse(vec2 f, vec3 b, float i)
 {
-    vec2 f = magic_f(F, B, i);
+    vec2 mf = magic_f(f, b, i);
-    vec3 b = magic_b(B, i);
+    vec3 mb = magic_b(b, i);
 
-    return mix(0, f.x * mix(1 - modTime(f.y), modTime(f.y), b.y), b.x);
+    return mix(0., mf.x * mix(1. - modTime(mf.y), modTime(mf.y), mb.y), mb.x);
 }
 
 float magic_reverse(float i)
 {
-    return magic_reverse(vec2(0), vec3(0, 0, 1), i);
+    return magic_reverse(vec2(0.), vec3(0., 0., 1.), i);
 }
 
 #endif

default/inc_map.glsl

@@ -0,0 +1,30 @@
+#ifndef INC_MAP
+#define INC_MAP
+
+vec2 project_4p(vec2 uv, vec2 p1, vec2 p2, vec2 p3, vec2 p4) {
+    float k1 = (p4.y - p3.y) / (p2.y - p3.y);
+    float k2 = (p3.y - p1.y) / (p2.y - p3.y);
+    float a = (p4.x - p3.x + k1 * p3.x - k1 * p2.x) / (p1.x - p3.x - k2 * p3.x + k2 * p2.x);
+    float b = k1 + a * k2;
+    float c = 1. - a - b;
+    // https://math.stackexchange.com/questions/296794/finding-the-transform-matrix-from-4-projected-points-with-javascript/339033#339033
+    mat3 projection_a = mat3(
+            a * p1.x, a * p1.y, a,
+            b * p2.x, b * p2.y, b,
+            c * p3.x, c * p3.y, c
+        );
+    mat3 projection_a_prime = inverse(projection_a);
+    mat3 projection_b = mat3(
+            0., 0., -1.,
+            1., 0., 1.,
+            0., 1., 1.
+        );
+    vec3 tmp = projection_b * projection_a_prime * vec3(uv, 1.);
+    return tmp.xy / tmp.z;
+}
+
+float base_mask(vec2 uv) {
+    return step(0., uv.x) * step(-1., -uv.x) * step(0., uv.y) * step(-1., -uv.y);
+}
+
+#endif

default/inc_rand.glsl

@@ -2,13 +2,13 @@
 #define INC_RAND
 
 float rand(float seed){
-    float v=pow(abs(seed),6./7.);
+    float v = pow(abs(seed), .8571429); // 6. / 7.
-    v*=sin(v)+1.;
+    v *= sin(v) + 1.;
     return fract(v);
 }
 
 float rand(vec2 n){
-    return rand(n.x * 1234 + n.y * 9876);
+    return rand(n.x * 1234. + n.y * 9876.);
 }
 
 #endif

default/inc_sentences.glsl

@@ -2,28 +2,29 @@
 #define INC_SENTENCES
 
 #define SENTENCE_COUNT 17
+#define SENTENCE_MAX_LENGTH 20
 
-const int sentences[SENTENCE_COUNT][20] = {
+const int sentences[] = int[SENTENCE_COUNT * SENTENCE_MAX_LENGTH](
-    {0x66, 0x6F, 0x72, 0x67, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x66, 0x6F, 0x72, 0x67, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x46, 0x4F, 0x52, 0x47, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x46, 0x4F, 0x52, 0x47, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x46, 0x2E, 0x4F, 0x2E, 0x52, 0x2E, 0x47, 0x2E, 0x45, 0x2E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x46, 0x2E, 0x4F, 0x2E, 0x52, 0x2E, 0x47, 0x2E, 0x45, 0x2E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x46, 0x75, 0x73, 0x69, 0x6F, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x46, 0x75, 0x73, 0x69, 0x6F, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x4F, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x4F, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x52, 0x65, 0x61, 0x6C, 0x2D, 0x74, 0x69, 0x6D, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x52, 0x65, 0x61, 0x6C, 0x2D, 0x74, 0x69, 0x6D, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x47, 0x65, 0x6E, 0x65, 0x72, 0x61, 0x74, 0x69, 0x76, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x47, 0x65, 0x6E, 0x65, 0x72, 0x61, 0x74, 0x69, 0x76, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x45, 0x66, 0x66, 0x65, 0x63, 0x74, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x45, 0x66, 0x66, 0x65, 0x63, 0x74, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x45, 0x76, 0x65, 0x72, 0x79, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x20, 0x79, 0x6F, 0x75, 0x20, 0x73, 0x65, 0x65, 0x00, 0x00},
+    0x45, 0x76, 0x65, 0x72, 0x79, 0x74, 0x68, 0x69, 0x6E, 0x67, 0x20, 0x79, 0x6F, 0x75, 0x20, 0x73, 0x65, 0x65, 0x00, 0x00,
-    {0x50, 0x69, 0x78, 0x65, 0x6C, 0x20, 0x62, 0x79, 0x20, 0x70, 0x69, 0x78, 0x65, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x50, 0x69, 0x78, 0x65, 0x6C, 0x20, 0x62, 0x79, 0x20, 0x70, 0x69, 0x78, 0x65, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x4C, 0x69, 0x76, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x4C, 0x69, 0x76, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x47, 0x65, 0x6E, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x47, 0x65, 0x6E, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x43, 0x6F, 0x6E, 0x74, 0x72, 0x6F, 0x6C, 0x6C, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x43, 0x6F, 0x6E, 0x74, 0x72, 0x6F, 0x6C, 0x6C, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0xE3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x4B, 0x6C, 0x65, 0xE3, 0x65, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x4B, 0x6C, 0x65, 0xE3, 0x65, 0x6B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x43, 0x6F, 0x64, 0x65, 0x20, 0x61, 0x73, 0x20, 0x61, 0x72, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x43, 0x6F, 0x64, 0x65, 0x20, 0x61, 0x73, 0x20, 0x61, 0x72, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    {0x41, 0x72, 0x74, 0x20, 0x61, 0x73, 0x20, 0x63, 0x6F, 0x64, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    0x41, 0x72, 0x74, 0x20, 0x61, 0x73, 0x20, 0x63, 0x6F, 0x64, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
+);
 
-const int lengths[SENTENCE_COUNT] = {
+const int lengths[] = int[SENTENCE_COUNT](
     5, 5, 10, 6, 2, 9, 10, 7, 18, 14, 4, 9, 10, 1, 6, 11, 11
-};
+);
 #endif

default/inc_src.glsl

@@ -1,6 +1,7 @@
 #include inc_res.glsl
 #include inc_magic.glsl
 #include inc_functions.glsl
+#include inc_cp437.glsl
 
 #ifndef INC_SRC
 #define INC_SRC
@@ -8,11 +9,13 @@
 uniform int iDemo;
 
 uniform sampler2D iTex0;
-uniform sampler2D iTex5;
+uniform sampler2D iTex3;
-uniform sampler2D iTex6;
+uniform sampler2D iTex4;
 
 subroutine vec4 src_stage_sub(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3);
 
+subroutine uniform src_stage_sub src_stage;
+
 vec4 src_thru(vec2 vUV, sampler2D tex, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
@@ -21,9 +24,9 @@ vec4 src_thru(vec2 vUV, sampler2D tex, int seed, vec3 b1, vec2 f1, vec3 b2, vec2
 
     // controls
 
-    float hue = magic(f1, b1, seed + 10);
+    float hue = magic(f1, b1, seed + 10.);
-    float saturation = magic(f2, b2, seed + 20);
+    float saturation = magic(f2, b2, seed + 20.);
-    float light = magic(f3, b3, seed + 30);
+    float light = magic(f3, b3, seed + 30.);
 
     // logic
 
@@ -31,8 +34,8 @@ vec4 src_thru(vec2 vUV, sampler2D tex, int seed, vec3 b1, vec2 f1, vec3 b2, vec2
 
     c = shift3(c, hue);
 
-    c *= 1 + saturation;
+    c *= 1. + saturation;
-    c = mix(c + light * 2.0, c - (1 - light) * 2.0, step(0.5, light));
+    c = mix(c + light * 2., c - (1. - light) * 2., step(.5, light));
 
     // output
 
@@ -40,356 +43,249 @@ vec4 src_thru(vec2 vUV, sampler2D tex, int seed, vec3 b1, vec2 f1, vec3 b2, vec2
 }
 
 // SRC 1: feedback + thru
-subroutine ( src_stage_sub ) vec4 src_1(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_1(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     return src_thru(vUV, iTex0, seed, b1, f1, b2, f2, b3, f3);
 }
 
 // SRC 2 : lines
-subroutine ( src_stage_sub ) vec4 src_2(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_2(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float thickness = magic(f1, b1, seed + 10);
+    float thickness = magic(f1, b1, seed + 10.);
-    float rotation = magic(f2, b2, seed + 20);
+    float rotation = magic(f2, b2, seed + 20.);
-    float distort = magic(f3, b3, seed + 30);
+    float distort = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec2 uv2 = uv1;
-    uv2.y *= cos(uv2.x * 5 * distort);
+    uv2.y *= cos(uv2.x * 5. * distort);
-    uv2 *= rot(rotation + iBeats / 16);
+    uv2 *= rot(rotation + iBeats * .0625);
-    float k = thickness * 2;
+    float k = thickness * 2.;
-    uv2.y = cmod(uv2.y, k * 2 + 0.1);
+    uv2.y = cmod(uv2.y, k * 2. + .1);
-    float f = istep(k * 0.125 + 0.05, uv2.y) * istep(k * 0.125 + 0.01, -uv2.y);
+    float f = istep(k * .125 + .05, uv2.y) * istep(k * .125 + .01, -uv2.y);
 
     return vec4(f);
 }
 
 // SRC 3 : dots
-subroutine ( src_stage_sub ) vec4 src_3(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_3(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = magic(f1, b1, seed + 10);
+    float zoom = magic(f1, b1, seed + 10.);
-    float rotation = magic(f2, b2, seed + 20);
+    float rotation = magic(f2, b2, seed + 20.);
-    float lens_v = magic(f3, b3, seed + 30);
+    float lens_v = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec2 uv2 = uv1;
-    float k1 = lens_v * 5;
+    float k1 = lens_v * 5.;
     uv2 = lens(uv2, -k1, k1);
-    uv2 = kal(uv2, 5);
+    uv2 = kal(uv2, 5.);
-    uv2 *= rot(rotation + iBeats / 16);
+    uv2 *= rot(rotation + iBeats * .0625);
-    float k = zoom * 0.1 + 0.05;
+    float k = zoom * .1 + .05;
-    uv2 = cmod(uv2, k * 2);
+    uv2 = cmod(uv2, k * 2.);
-    float f = istep(k / (1 + length(uv1) * 2), length(uv2));
+    float f = istep(k / (1. + length(uv1) * 2.), length(uv2));
 
     return vec4(f);
 }
 
-// SRC 4 : circuit
+
-subroutine ( src_stage_sub ) vec4 src_4(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+// SRC 4 : bacteria
+subroutine(src_stage_sub) vec4 src_4(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float z = 10 + magic(f1, b1, 123) * 20;
+    float zoom = 2. + magic(f1, b1, seed + 10.) * 20.;
-    float h = magic(f2, b2, seed + 20) * 0.8 + 0.1;
+    float details = 5. * magic(f2, b2, seed + 20.);
-    float v = magic_reverse(f3, b3, seed + 30) * 0.8 + 0.1;
+    float delta = magic(f3, b3, seed + 30.);
 
     // logic
 
-    uv1 *= z;
+    uv1 *= zoom;
-    uv1 += iBeats;
 
-    float s0 = rand(floor(mod(uv1, 1000))) * 1000;
+    vec4 data = voronoi(uv1, 1., seed + 40, iBeats * .25);
-    float s1 = rand(floor(mod(uv1 + vec2(0, 1), 1000))) * 1000;
-    float s2 = rand(floor(mod(uv1 - vec2(1, 0), 1000))) * 1000;
 
-    bool up = rand(s1 + 1) < h;
+    float f = ease(data.x) + ease(data.y);
-    bool left = rand(s2 + 2) < v;
-    bool down = rand(s0 + 1) < h;
-    bool right = rand(s0 + 2) < v;
-    bool up_down = up && down;
-    bool left_right = left && right;
 
-    uv1 = mod(uv1, 1.0) - 0.5;
+    f = saw(f * (1. + data.x * details) - delta * 2.);
-
-    const float t = 0.1;
-
-    float f = 0;
-    int c = 0;
-
-    if (up) {
-        f += stripe(uv1.x, -t * 0.5, t * 0.5) * step(-t * 0.5, uv1.y);
-        c += 1;
-    }
-
-    if (down) {
-        f += stripe(uv1.x, -t * 0.5, t * 0.5) * istep(t * 0.5, uv1.y);
-        c += 1;
-    }
-
-    if (left) {
-        f += stripe(uv1.y, -t * 0.5, t * 0.5) * istep(t * 0.5, uv1.x);
-        c += 1;
-    }
-
-    if (right) {
-        f += stripe(uv1.y, -t * 0.5, t * 0.5) * step(-t * 0.5, uv1.x);
-        c += 1;
-    }
-
-    if (c == 1) {
-        f += istep(t, length(uv1));
-    }
-
-    f = min(f, 1);
-
-    if ((up_down ^^ left_right) && c == 2) {
-        if (up_down) {
-            uv1.xy = uv1.yx;
-        }
-        if (rand(s0 + 3) < 0.5) {
-            uv1.x = -uv1.x;
-        }
-        float k = rand(s0 + 4) * 60;
-        f -= rect(uv1, vec2(0), vec2(t * 3, t));
-        f = max(0, f);
-        if (k < 10) { // resistor
-            f += line(uv1, vec2(-t * 3.25, -t * 0.5), vec2(-t * 2.5, t * 2), t * 0.75);
-            f += line(uv1, vec2(-t * 2.5, t * 2), vec2(-t * 1.5, -t * 2), t * 0.75);
-            f += line(uv1, vec2(-t * 1.5, -t * 2), vec2(-t * 0.5, t * 2), t * 0.75);
-            f += line(uv1, vec2(-t * 0.5, t * 2), vec2(t * 0.5, -t * 2), t * 0.75);
-            f += line(uv1, vec2(t * 0.5, -t * 2), vec2(t * 1.5, t * 2), t * 0.75);
-            f += line(uv1, vec2(t * 1.5, t * 2), vec2(t * 2.5, -t * 2), t * 0.75);
-            f += line(uv1, vec2(t * 2.5, -t * 2), vec2(t * 3.25, t * 0.5), t * 0.75);
-        } else if (k < 20) { // capacitor
-            f += rect(uv1, vec2(-t * 2, 0), vec2(t, t * 0.5));
-            f += rect(uv1, vec2(t * 2, 0), vec2(t, t * 0.5));
-            f += rect(uv1, vec2(t, 0), vec2(t * 0.5, t * 3.5));
-            f += rect(uv1, vec2(-t, 0), vec2(t * 0.5, t * 3.5));
-        } else if (k < 30) { // diode
-            f += line(uv1, vec2(-t * 2, t * 2.5), vec2(t * 2, 0), t);
-            f += line(uv1, vec2(-t * 2, -t * 2.5), vec2(t * 2, 0), t);
-            f += rect(uv1, vec2(t * 2.5, 0), vec2(t * 0.5, t * 3));
-            f += rect(uv1, vec2(-t * 2.5, 0), vec2(t * 0.5, t * 3));
-        } else if (k < 40) { // lamp
-            f += istep(t * 3.5, length(uv1));
-            f -= istep(t * 2.5, length(uv1));
-            f += line(uv1, vec2(-t * 2), vec2(t * 2), t);
-            f += line(uv1, vec2(-t * 2, t * 2), vec2(t * 2, -t * 2), t);
-        } else if (k < 50) { // inductor
-            f += istep(t * 2, length(uv1 - vec2(t * 2.5, 0)));
-            f += istep(t * 2, length(uv1 - vec2(0, 0)));
-            f += istep(t * 2, length(uv1 - vec2(-t * 2.5, 0)));
-            f -= 2 * istep(t, length(uv1 - vec2(t * 2.5, 0)));
-            f -= 2 * istep(t, length(uv1 - vec2(0, 0)));
-            f -= 2 * istep(t, length(uv1 - vec2(-t * 2.5, 0)));
-            f *= step(-t * 0.5, uv1.y);
-        } else if (k < 60) { // switch
-            f += istep(t, length(uv1 - vec2(t * 2.5, 0)));
-            f += istep(t, length(uv1 + vec2(t * 2.5, 0)));
-            f += line(uv1, vec2(t * 2, 0), vec2(-t * 2.5, t * (k < 55 ? 3 : 1)), t);
-        }
-    } else if (c == 3) {
-        if (left_right) {
-            uv1.xy = uv1.yx;
-            if (up) {
-                uv1.x = -uv1.x;
-            }
-        } else if (right) {
-            uv1.x = -uv1.x;
-        }
-        float k = rand(s0 + 4) * 20;
-        if (k < 10) {
-            f -= rect(uv1, vec2(0), vec2(t * 3));
-            f = max(0, f);
-            f += rect(uv1, vec2(-t * 3, 0), vec2(t * 0.5, t * 3));
-            f += line(uv1, vec2(t * 0.25, t * 3.25), vec2(-t * 3, t), t);
-            f += line(uv1, vec2(t * 0.25, -t * 3.25), vec2(-t * 3, -t), t);
-        }
-    }
 
     return vec4(f);
 }
 
 // SRC 5 : noise
-subroutine ( src_stage_sub ) vec4 src_5(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_5(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = magic(f1, b1, seed + 10);
+    float zoom = magic(f1, b1, seed + 10.);
-    float voronoi_distort = magic(f2, b2, seed + 20);
+    float voronoi_distort = magic(f2, b2, seed + 20.);
-    float details = magic(f3, b3, seed + 30);
+    float details = magic(f3, b3, seed + 30.);
-    float noise_factor = magic(seed + 40);
+    float noise_factor = magic(seed + 40.);
 
     // logic
 
     vec2 uv2 = uv1;
-    uv2 *= zoom * 20 + 3;
+    uv2 *= zoom * 20. + 3.;
     uv2.x += iBeats;
-    vec4 data = voronoi(uv2, voronoi_distort);
+    vec4 data = voronoi(uv2, voronoi_distort, seed + 50, iBeats);
     float f = data.x / (data.x + data.y);
-    f = sin(f * PI * (details * 20)) * 0.5 + 1;
+    f = sin(f * PI * (details * 20.)) * .5 + 1.;
-    int nf = int(noise_factor * 6);
+    int nf = int(noise_factor * 6.);
-    f *= mix(1, noise_f(uv2, nf - 1), step(0.0, float(nf)));
+    f *= mix(1., noise_f(uv2, nf - 1), step(.0, float(nf)));
 
     return vec4(f);
 }
 
 // SRC 6 : video in 1 + thru
-subroutine ( src_stage_sub ) vec4 src_6(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_6(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     if (iDemo > 0) {
         return src_2(vUV, seed, b1, f1, b2, f2, b3, f3);
     }
 
-    return src_thru(vUV, iTex5, seed, b1, f1, b2, f2, b3, f3);
+    return src_thru(vUV, iTex3, seed, b1, f1, b2, f2, b3, f3);
 }
 
-#include inc_cp437.glsl
-
 // SRC 7 : cp437
-subroutine ( src_stage_sub ) vec4 src_7(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_7(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = magic(f1, b1, seed + 10);
+    float zoom = magic(f1, b1, seed + 10.);
-    vec2 charset = magic_f(f2, b2, seed + 20);
+    vec2 charset = magic_f(f2, b2, seed + 20.);
-    vec3 charset_ctrl = magic_b(b2, seed + 20);
+    vec3 charset_ctrl = magic_b(b2, seed + 20.);
-    float char_delta = magic(f3, b3, seed + 30);
+    float char_delta = magic(f3, b3, seed + 30.);
 
     // logic
 
     vec2 uv2 = uv1;
-    uv2 *= zoom * 20 + 3;
+    uv2 *= zoom * 20. + 3.;
     uv2 += iBeats;
-    uv2 = mod(uv2, 100) + 100;
+    uv2 = mod(uv2, 100.) + 100.;
-    int start_char = charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
+    int start_char = charset_ctrl.x > 0. ? charsets[int(charset.x * CHARSETS) * 2] : 0x01;
-    int char_span = int((charset_ctrl.x > 0 ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
+    int char_span = int((charset_ctrl.x > 0. ? charsets[int(charset.x * CHARSETS) * 2 + 1] : 255));
-    char_span = int(char_span * max(1 - charset.y, 1 / (char_span * 0.75)));
+    char_span = int(char_span * max(1. - charset.y, 1. / (char_span * .75)));
     ivec2 uv2i = ivec2(uv2);
-    int code = ((charset_ctrl.y < 1 || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
+    int code = ((charset_ctrl.y < 1. || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
-    uv2 = mod(uv2, 1);
+    uv2 = mod(uv2, 1.);
-    float f = char(uv2, code) ? 1 : 0;
+    float f = char(uv2, code) ? 1. : 0.;
 
     return vec4(f);
 }
 
 // SRC 8 : sentences
 
-#include inc_sentences.glsl
+subroutine(src_stage_sub) vec4 src_8(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
-
-subroutine ( src_stage_sub ) vec4 src_8(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = magic(f1, b1, seed + 10);
+    float zoom = magic(f1, b1, seed + 10.);
-    float sentence = magic_reverse(f2, b2, seed + 20);
+    float sentence = magic_reverse(f2, b2, seed + 20.);
-    float h_delta = magic(f3, b3, seed + 30);
+    float h_delta = magic(f3, b3, seed + 30.);
-    vec3 h_delta_b = magic_b(b3, seed + 30);
+    vec3 h_delta_b = magic_b(b3, seed + 30.);
 
     // logic
 
     vec2 uv2 = uv1;
-    uv2 *= (1 + zoom) * 12;
+    uv2 *= (1. + zoom) * 12.;
-    uv2.y += 0.5;
+    uv2.y += .5;
     int s = int(sentence * (SENTENCE_COUNT - 1));
-    uv2.x += floor(uv2.y) * (h_delta - 0.5) * 2;
+    uv2.x += floor(uv2.y) * (h_delta - .5) * 2.;
-    uv2.y = mix(uv2.y, mod(uv2.y, 1), h_delta_b.x);
+    uv2.y = mix(uv2.y, mod(uv2.y, 1.), h_delta_b.x);
-    float f = write_20(uv2, vec2(-float(lengths[s]) * 0.5, 0), sentences[s]);
+    float f = write_sentence(uv2, vec2(-float(lengths[s]) * .5, 0.), s);
 
     return vec4(f);
 }
 
 // SRC 9 : sentences repeat
-subroutine ( src_stage_sub ) vec4 src_9(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_9(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float h_shift = magic(f1, b1, seed + 10);
+    float h_shift = magic(f1, b1, seed + 10.);
-    float sentence = magic_reverse(f2, b2, seed + 20);
+    float sentence = magic_reverse(f2, b2, seed + 20.);
-    float h_delta = magic(f3, b3, seed + 30);
+    float h_delta = magic(f3, b3, seed + 30.);
-    vec3 h_delta_b = magic_b(b3, seed + 30);
+    vec3 h_delta_b = magic_b(b3, seed + 30.);
 
     // logic
 
     vec2 uv2 = uv1;
     uv2.x += h_shift;
-    uv2 *= 15;
+    uv2 *= 15.;
-    uv2.y += 0.5;
+    uv2.y += .5;
     int s = int(sentence * (SENTENCE_COUNT - 1));
     float slen = float(lengths[s]);
-    uv2.x += floor(uv2.y) * (h_delta - 0.5) * 2;
+    uv2.x += floor(uv2.y) * (h_delta - .5) * 2.;
-    uv2.x = cmod(uv2.x, slen + 1);
+    uv2.x = cmod(uv2.x, slen + 1.);
     vec2 uv3 = uv2;
-    uv3.y = mix(uv3.y, mod(uv3.y, 1), h_delta_b.x);
+    uv3.y = mix(uv3.y, mod(uv3.y, 1.), h_delta_b.x);
-    float f = write_20(uv3, vec2(-slen * 0.5, 0), sentences[s]);
+    float f = write_sentence(uv3, vec2(-slen * .5, 0.), s);
 
-    f *= (1 - abs(floor(uv2.y) * 0.125)) * (1 - abs(floor(uv2.y) * 0.125));
+    f *= (1. - abs(floor(uv2.y) * .125)) * (1. - abs(floor(uv2.y) * .125));
 
     return vec4(f);
 }
 
 // SRC 10 : isometric grid
-subroutine ( src_stage_sub ) vec4 src_10(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_10(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = 5 + magic(f1, b1, seed + 10) * 15;
+    float zoom = 5. + magic(f1, b1, seed + 10.) * 15.;
-    float h_scroll = magic(f2, b2, seed + 20);
+    float h_scroll = magic(f2, b2, seed + 20.);
-    float max_elevation = magic(f3, b3, seed + 30) * 0.5;
+    float max_elevation = magic(f3, b3, seed + 30.) * .5;
-    float thick = 0.1;
+    float thick = .1;
 
     // logic
 
@@ -397,103 +293,103 @@ subroutine ( src_stage_sub ) vec4 src_10(vec2 vUV, int seed, vec3 b1, vec2 f1, v
 
     vec2 uv3 = iso(uv2);
 
-    uv3 += vec2(h_scroll, 0);
+    uv3 += vec2(h_scroll, 0.);
 
     uv3 *= round(zoom);
 
-    vec2 umax = vec2(round(zoom), 300);
+    vec2 umax = vec2(round(zoom), 300.);
 
     vec2 u0 = mod(floor(uv3), umax);
-    vec2 u1 = mod(floor(uv3 + vec2(1, 0)), umax);
+    vec2 u1 = mod(floor(uv3 + vec2(1., 0.)), umax);
-    vec2 u2 = mod(floor(uv3 + vec2(0, 1)), umax);
+    vec2 u2 = mod(floor(uv3 + vec2(0., 1.)), umax);
-    vec2 u3 = mod(floor(uv3 + vec2(-1, 0)), umax);
+    vec2 u3 = mod(floor(uv3 + vec2(-1., 0.)), umax);
-    vec2 u4 = mod(floor(uv3 + vec2(0, -1)), umax);
+    vec2 u4 = mod(floor(uv3 + vec2(0., -1.)), umax);
 
-    float e0 = (rand(floor(u0)) * 2 - 1) * max_elevation;
+    float e0 = (rand(floor(u0)) * 2. - 1.) * max_elevation;
-    float e1 = (rand(floor(u1)) * 2 - 1) * max_elevation;
+    float e1 = (rand(floor(u1)) * 2. - 1.) * max_elevation;
-    float e2 = (rand(floor(u2)) * 2 - 1) * max_elevation;
+    float e2 = (rand(floor(u2)) * 2. - 1.) * max_elevation;
-    float e3 = (rand(floor(u3)) * 2 - 1) * max_elevation;
+    float e3 = (rand(floor(u3)) * 2. - 1.) * max_elevation;
-    float e4 = (rand(floor(u4)) * 2 - 1) * max_elevation;
+    float e4 = (rand(floor(u4)) * 2. - 1.) * max_elevation;
 
-    uv3 = mod(uv3, 1.0) - 0.5;
+    uv3 = mod(uv3, 1.) - .5;
 
-    float f = 0;
+    float f = 0.;
 
-    f = line(uv3, vec2(0, 0) - iso_z(e0), vec2(1, 0) - iso_z(e1), thick)
+    f = line(uv3, vec2(0., 0.) - iso_z(e0), vec2(1., 0.) - iso_z(e1), thick)
-            + line(uv3, vec2(0, 0) - iso_z(e0), vec2(0, 1) - iso_z(e2), thick)
+            + line(uv3, vec2(0., 0.) - iso_z(e0), vec2(0., 1.) - iso_z(e2), thick)
-            + line(uv3, vec2(0, 0) - iso_z(e0), vec2(-1, 0) - iso_z(e3), thick)
+            + line(uv3, vec2(0., 0.) - iso_z(e0), vec2(-1., 0.) - iso_z(e3), thick)
-            + line(uv3, vec2(0, 0) - iso_z(e0), vec2(0, -1) - iso_z(e4), thick);
+            + line(uv3, vec2(0., 0.) - iso_z(e0), vec2(0., -1.) - iso_z(e4), thick);
 
     return vec4(f);
 }
 
 // SRC 11 : video in 2 + thru
-subroutine ( src_stage_sub ) vec4 src_11(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_11(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     if (iDemo > 0) {
         return src_3(vUV, seed, b1, f1, b2, f2, b3, f3);
     }
 
-    return src_thru(vUV, iTex6, seed, b1, f1, b2, f2, b3, f3);
+    return src_thru(vUV, iTex4, seed, b1, f1, b2, f2, b3, f3);
 }
 
 // SRC 12 : Scales
-subroutine ( src_stage_sub ) vec4 src_12(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_12(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = 5 + magic(f1, b1, seed + 10) * 15;
+    float zoom = 5. + magic(f1, b1, seed + 10.) * 15.;
-    float shape = magic(f2, b2, seed + 20);
+    float shape = magic(f2, b2, seed + 20.);
-    float repeat = 1 + magic(f3, b3, seed + 30) * 10;
+    float repeat = 1. + magic(f3, b3, seed + 30.) * 10.;
 
     // logic
 
-    float f = 0;
+    float f = 0.;
 
     vec2 uv2 = uv1;
 
     uv2 *= zoom;
 
-    uv2 = mod(uv2, 4);
+    uv2 = mod(uv2, 4.);
 
     vec2 uv3 = uv2;
 
-    uv3.y = mix(uv3.y, -uv3.y, step(2, uv2.x) * step(2, uv2.y));
+    uv3.y = mix(uv3.y, -uv3.y, step(2., uv2.x) * step(2., uv2.y));
-    uv3.y = mix(uv3.y, -uv3.y, istep(2, uv2.x) * istep(2, uv2.y));
+    uv3.y = mix(uv3.y, -uv3.y, istep(2., uv2.x) * istep(2., uv2.y));
 
     uv3.y = -uv3.y;
 
-    uv3.x = mix(-uv3.x, uv3.x, istep(3, uv2.x) * step(1, uv2.x));
+    uv3.x = mix(-uv3.x, uv3.x, istep(3., uv2.x) * step(1., uv2.x));
-    uv3.x = mix(-uv3.x, uv3.x, istep(3, uv2.y) * step(1, uv2.y));
+    uv3.x = mix(-uv3.x, uv3.x, istep(3., uv2.y) * step(1., uv2.y));
 
-    f = istep(0.5, saw((length(mod(uv3, 1)) + shape + 0.5) * repeat));
+    f = istep(.5, saw((length(mod(uv3, 1.)) + shape + .5) * repeat));
 
-    f = mix(1 - f, f, istep(1, abs(uv2.y - 2)) * istep(2, uv2.x));
+    f = mix(1. - f, f, istep(1., abs(uv2.y - 2.)) * istep(2., uv2.x));
-    f = mix(1 - f, f, step(1, abs(uv2.y - 2)) * step(2, uv2.x));
+    f = mix(1. - f, f, step(1., abs(uv2.y - 2.)) * step(2., uv2.x));
 
     return vec4(f);
 }
 
 // SRC 13 : Credenza
-subroutine ( src_stage_sub ) vec4 src_13(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_13(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float zoom = 5 + magic(f1, b1, seed + 10) * 15;
+    float zoom = 5. + magic(f1, b1, seed + 10.) * 15.;
-    float shape = 0.1 + magic(f2, b2, seed + 20) * 0.9;
+    float shape = .1 + magic(f2, b2, seed + 20.) * .9;
-    float repeat = 1 + magic(f3, b3, seed + 30) * 10;
+    float repeat = 1. + magic(f3, b3, seed + 30.) * 10.;
 
     // logic
 
@@ -501,33 +397,33 @@ subroutine ( src_stage_sub ) vec4 src_13(vec2 vUV, int seed, vec3 b1, vec2 f1, v
 
     uv2 *= zoom;
 
-    uv2 = mod(uv2, 2);
+    uv2 = mod(uv2, 2.);
 
-    uv2 = abs(uv2 - 1);
+    uv2 = abs(uv2 - 1.);
 
-    float f = istep(1, length(uv2)) * istep(1, length(1 - uv2));
+    float f = istep(1., length(uv2)) * istep(1., length(1. - uv2));
 
-    f *= istep(0.5, saw((length(uv2) + shape + 0.5) * repeat)) * istep(0.5, saw((length(1 - uv2) + shape + 0.5) * repeat));
+    f *= istep(.5, saw((length(uv2) + shape + .5) * repeat)) * istep(.5, saw((length(1. - uv2) + shape + .5) * repeat));
 
     return vec4(f);
 }
 
 // SRC 14 : Cursor
-subroutine ( src_stage_sub ) vec4 src_14(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_14(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
     // start
 
     vec2 uv0 = vUV.st;
     float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1.);
 
     // controls
 
-    float size = magic(f1, b1, seed + 10) * 2 + 0.1;
+    float size = magic(f1, b1, seed + 10.) * 2. + .1;
-    float dx = (fmagic(f2, b2, seed + 20) * (1 - size * 0.06) - 0.5) * ratio;
+    float dx = (fmagic(f2, b2, seed + 20.) * (1. - size * .06) - .5) * ratio;
-    bool flip_x = magic_trigger(b2, seed + 20);
+    bool flip_x = magic_trigger(b2, seed + 20.);
-    float dy = fmagic(f3, b3, seed + 30) * (1 - size * 0.17) - 0.5;
+    float dy = fmagic(f3, b3, seed + 30.) * (1. - size * .17) - .5;
-    bool flip_y = magic_trigger(b3, seed + 30);
+    bool flip_y = magic_trigger(b3, seed + 30.);
 
     // logic
 
@@ -545,49 +441,49 @@ subroutine ( src_stage_sub ) vec4 src_14(vec2 vUV, int seed, vec3 b1, vec2 f1, v
 
     uv2 /= size;
 
-    uv2 *= -rot(-PI / 2);
+    uv2 *= -rot(-PI * 0.5);
 
-    float f = istep(0, (uv2.x * 2 + uv2.y) * (uv2.x * 2 - uv2.y)) * istep(0, uv2.y);
+    float f = istep(0., (uv2.x * 2. + uv2.y) * (uv2.x * 2. - uv2.y)) * istep(0., uv2.y);
 
-    uv2.y += 0.1;
+    uv2.y += .1;
 
-    f -= istep(0, (uv2.x + uv2.y * 3) * (uv2.x - uv2.y * 3)) * istep(0, uv2.y);
+    f -= istep(0., (uv2.x + uv2.y * 3.) * (uv2.x - uv2.y * 3.)) * istep(0., uv2.y);
 
-    f += rect(uv2, vec2(0, -0.04), vec2(0.01, 0.04));
+    f += rect(uv2, vec2(0., -.04), vec2(.01, .04));
 
     return vec4(f);
 }
 
 // SRC 15 : Random
-subroutine ( src_stage_sub ) vec4 src_15(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
+subroutine(src_stage_sub) vec4 src_15(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3 b2, vec2 f2, vec3 b3, vec2 f3)
 {
-    int src = int(randTime(seed + 100) * 14);
+    int src = int(randTime(seed + 100.) * 14.) + 1;
 
-    if (src == 0) {
+    if (src == 1) {
         return src_1(vUV, seed, b1, f1, b2, f2, b3, f3);
-    } else if (src == 1) {
-        return src_2(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 2) {
-        return src_3(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_2(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 3) {
-        return src_4(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_3(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 4) {
-        return src_5(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_4(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 5) {
-        return src_6(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_5(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 6) {
-        return src_7(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_6(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 7) {
-        return src_8(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_7(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 8) {
-        return src_9(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_8(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 9) {
-        return src_10(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_9(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 10) {
-        return src_11(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_10(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 11) {
-        return src_12(vUV, seed, b1, f1, b2, f2, b3, f3);
+        return src_11(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else if (src == 12) {
+        return src_12(vUV, seed, b1, f1, b2, f2, b3, f3);
+    } else if (src == 13) {
         return src_13(vUV, seed, b1, f1, b2, f2, b3, f3);
     } else {
         return src_14(vUV, seed, b1, f1, b2, f2, b3, f3);

default/inc_time.glsl

@@ -21,33 +21,33 @@ float randTime(float seed){
 
 float divider(float x)
 {
-    if (x < 0.1) return 0;
+    if (x < .1) return 0.;
-    if (x < 0.2) return 0.125;
+    if (x < .2) return .125;
-    if (x < 0.3) return 0.25;
+    if (x < .3) return .25;
-    if (x < 0.4) return 0.5;
+    if (x < .4) return .5;
-    if (x < 0.6) return 1;
+    if (x < .6) return 1.;
-    if (x < 0.8) return 2;
+    if (x < .8) return 2.;
-    return 4;
+    return 4.;
 }
 
 float modTime(float k, float k2)
 {
-    return mod(divider(k) * iBeats * k2 / 4, 1);
+    return mod(divider(k) * iBeats * k2 * .25, 1.);
 }
 
 float modTime(float k)
 {
-    return modTime(k, 1.0);
+    return modTime(k, 1.);
 }
 
 float sinTime(float k)
 {
-    return sin(modTime(k, 0.5) * 2 * PI);
+    return sin(modTime(k, .5) * 2. * PI);
 }
 
 float cosTime(float k)
 {
-    return cos(modTime(k, 0.5) * 2 * PI);
+    return cos(modTime(k, .5) * 2. * PI);
 }
 
 #endif

default/inc_yuyv.glsl

@@ -3,26 +3,26 @@
 
 const int YUYV_FOURCC = 1448695129;
 
-const mat3x3 yuyv_to_rgb = {{1,1,1},{0,-0.39465,2.03211},{1.13983,-0.5806,0}};
+// https://en.wikipedia.org/wiki/Y%E2%80%B2UV
+const mat3x3 yuyv_to_rgb_bt709 = mat3x3(1., 1., 1., 0., -.21482, 2.12798, 1.28033, -.38059, 0.);
 
 vec4 yuyvTex(sampler2D tex, vec2 vUV, int base_width) {
-    float w = base_width - 1;
+    float w = base_width - 1.;
-
     int x = int(vUV.x * w);
 
     int xU = x - x % 2;
     int xV = x - x % 2 + 1;
 
-    vec4 tU = texture(tex, vec2(xU / w, 1 - vUV.y));
+    vec4 tU = texture(tex, vec2(xU / w, 1. - vUV.y));
-    vec4 tV = texture(tex, vec2(xV / w, 1 - vUV.y));
+    vec4 tV = texture(tex, vec2(xV / w, 1. - vUV.y));
 
     vec3 yuv = vec3(
-        x % 2 == 0 ? tU.x : tV.x,
+            x % 2 == 0. ? tU.x : tV.x,
-        tU.y - 0.5,
+            tU.y - .5,
-        tV.y - 0.5
+            tV.y - .5
-    );
+        );
 
-    return vec4(yuyv_to_rgb * yuv, 1.0);
+    return vec4(yuyv_to_rgb_bt709 * yuv, 1.);
 }
 
 #endif

include/glad/gl.h

@@ -1,11 +1,11 @@
 /**
- * Loader generated by glad 2.0.8 on Wed May 13 21:57:23 2026
+ * Loader generated by glad 2.0.8 on Thu Aug 27 15:42:48 2026
  *
  * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0
  *
  * Generator: C/C++
  * Specification: gl
- * Extensions: 4
+ * Extensions: 5
  *
  * APIs:
  *  - gl:compatibility=4.6
@@ -19,10 +19,10 @@
  *  - ON_DEMAND = False
  *
  * Commandline:
- *    --api='gl:compatibility=4.6' --extensions='GL_ARB_direct_state_access,GL_EXT_EGL_image_storage,GL_EXT_direct_state_access,GL_KHR_debug' c --header-only --loader
+ *    --api='gl:compatibility=4.6' --extensions='GL_ARB_arrays_of_arrays,GL_ARB_direct_state_access,GL_EXT_EGL_image_storage,GL_EXT_direct_state_access,GL_KHR_debug' c --header-only --loader
  *
  * Online:
- *    http://glad.sh/#api=gl%3Acompatibility%3D4.6&extensions=GL_ARB_direct_state_access%2CGL_EXT_EGL_image_storage%2CGL_EXT_direct_state_access%2CGL_KHR_debug&generator=c&options=HEADER_ONLY%2CLOADER
+ *    http://glad.sh/#api=gl%3Acompatibility%3D4.6&extensions=GL_ARB_arrays_of_arrays%2CGL_ARB_direct_state_access%2CGL_EXT_EGL_image_storage%2CGL_EXT_direct_state_access%2CGL_KHR_debug&generator=c&options=HEADER_ONLY%2CLOADER
  *
  */
 
@@ -2403,6 +2403,8 @@ GLAD_API_CALL int GLAD_GL_VERSION_4_4;
 GLAD_API_CALL int GLAD_GL_VERSION_4_5;
 #define GL_VERSION_4_6 1
 GLAD_API_CALL int GLAD_GL_VERSION_4_6;
+#define GL_ARB_arrays_of_arrays 1
+GLAD_API_CALL int GLAD_GL_ARB_arrays_of_arrays;
 #define GL_ARB_direct_state_access 1
 GLAD_API_CALL int GLAD_GL_ARB_direct_state_access;
 #define GL_EXT_EGL_image_storage 1
@@ -6395,6 +6397,7 @@ int GLAD_GL_VERSION_4_3 = 0;
 int GLAD_GL_VERSION_4_4 = 0;
 int GLAD_GL_VERSION_4_5 = 0;
 int GLAD_GL_VERSION_4_6 = 0;
+int GLAD_GL_ARB_arrays_of_arrays = 0;
 int GLAD_GL_ARB_direct_state_access = 0;
 int GLAD_GL_EXT_EGL_image_storage = 0;
 int GLAD_GL_EXT_direct_state_access = 0;
@@ -9290,6 +9293,7 @@ static int glad_gl_find_extensions_gl(void) {
     char **exts_i = NULL;
     if (!glad_gl_get_extensions(&exts, &exts_i)) return 0;
 
+    GLAD_GL_ARB_arrays_of_arrays = glad_gl_has_extension(exts, exts_i, "GL_ARB_arrays_of_arrays");
     GLAD_GL_ARB_direct_state_access = glad_gl_has_extension(exts, exts_i, "GL_ARB_direct_state_access");
     GLAD_GL_EXT_EGL_image_storage = glad_gl_has_extension(exts, exts_i, "GL_EXT_EGL_image_storage");
     GLAD_GL_EXT_direct_state_access = glad_gl_has_extension(exts, exts_i, "GL_EXT_direct_state_access");
@@ -9571,3 +9575,4 @@ void gladLoaderUnloadGL(void) {
 #endif
 
 #endif /* GLAD_GL_IMPLEMENTATION */
+

scripts/sentences.py

@@ -6,6 +6,8 @@ TARGET_FILE = os.path.join(
     os.path.dirname(__file__), "..", "default", "inc_sentences.glsl"
 )
 
+SENTENCE_MAX_LENGTH = 20
+
 SENTENCES = [
     "forge",
     "FORGE",
@@ -37,25 +39,26 @@ def code(char: str) -> str:
 
 def convert(txt: str) -> str:
     out = []
-    for i in range(20):
+    for i in range(SENTENCE_MAX_LENGTH):
         out += [code(txt[i]) if i < len(txt) else "0x00"]
-    return f"{{{', '.join(out)}}}"
+    return ', '.join(out)
 
 
 def main() -> None:
     with open(TARGET_FILE, mode="w") as file:
         file.write("#ifndef INC_SENTENCES\n")
         file.write("#define INC_SENTENCES\n\n")
-        file.write(f"#define SENTENCE_COUNT {len(SENTENCES)}\n\n")
+        file.write(f"#define SENTENCE_COUNT {len(SENTENCES)}\n")
-        file.write("const int sentences[SENTENCE_COUNT][20] = {\n")
+        file.write(f"#define SENTENCE_MAX_LENGTH {SENTENCE_MAX_LENGTH}\n\n")
-        for sentence in SENTENCES:
+        file.write("const int sentences[] = int[SENTENCE_COUNT * SENTENCE_MAX_LENGTH](\n")
-            file.write("    " + convert(sentence) + "," + "\n")
+        for i, sentence in enumerate(SENTENCES):
-        file.write("};\n\n")
+            file.write("    " + convert(sentence) + ("," if i < len(SENTENCES) - 1 else "") + "\n")
-        file.write("const int lengths[SENTENCE_COUNT] = {\n")
+        file.write(");\n\n")
+        file.write("const int lengths[] = int[SENTENCE_COUNT](\n")
         file.write(
             "    " + ", ".join(str(len(sentence)) for sentence in SENTENCES) + "\n"
         )
-        file.write("};\n")
+        file.write(");\n")
         file.write("#endif")
 
 

src/args.c

@@ -11,6 +11,9 @@
 #include "config.h"
 #include "string.h"
 
+#define STR_IMPL_(x) #x     // stringify argument
+#define STR(x) STR_IMPL_(x) // indirection to expand argument macros
+
 static void print_help(int status_code) {
   puts(
       PACKAGE
@@ -34,6 +37,7 @@ static void print_help(int status_code) {
       "[-vs=SIZE] "
       "[-vb=COUNT] "
       "[-vr / -nvr] "
+      "[-vf=FOURCC] "
 #endif /* VIDEO_IN */
       "[-is=SIZE] "
       "[-ls / -nls] "
@@ -41,6 +45,13 @@ static void print_help(int status_code) {
       "[-mr / -nmr] "
       "[-tm] "
       "[-tf] "
+      "[--x11] "
+      "[--wayland] "
+      "[--cocoa] "
+      "[--win32] "
+      "[-as / -nas] "
+      "[-oma=MAJOR] "
+      "[-omi=MINOR] "
       "\n\n"
       "Fusion Of Real-time Generative Effects.\n\n"
       "options:\n"
@@ -65,21 +76,34 @@ static void print_help(int status_code) {
       "  -vi, --video-in             path to video capture device (multiple "
       "allowed)\n"
       "  -vb, --video-buffers        number of video buffers to use (default: "
-      "2)\n"
+      "1)\n"
       "  -vs, --video-size           video capture desired height (default: "
       "internal texture height)\n"
       "  -vr, --video-reconnect      auto-reconnect video (default)\n"
       "  -nvr, --no-video-reconnect  do not auto-reconnect video\n"
+      "  -vf, --video-fourcc         video codec fourcc (default: YUYV)\n"
 #endif /* VIDEO_IN */
       "  -is, --internal-size        internal texture height (default: 720)\n"
       "  -ls, --load-state           load saved state (default)\n"
       "  -nls, --no-load-state       do not load saved state\n"
       "  -ss, --save-state           save state (default)\n"
       "  -nss, --no-save-state       do not save state\n"
+      "  -as, --auto-save            continuously save state (every ~10ms)\n"
+      "  -nas, --no-auto-save        do not continuously save state (default)\n"
       "  -mr, --midi-reconnect       auto-reconnect midi (default)\n"
       "  -nmr, --no-midi-reconnect   do not auto-reconnect midi\n"
       "  -tm, --trace-midi           print midi code and values\n"
-      "  -tf, --trace-fps            print fps status of subsystems\n");
+      "  -tf, --trace-fps            print fps status of subsystems\n"
+      "  --x11                       force X11 GLFW backend\n"
+      "  --wayland                   force Wayland GLFW backend\n"
+      "  --cocoa                     force Cocoa GLFW backend\n"
+      "  --win32                     force Win32 GLFW backend\n"
+      "  -oma, --opengl-major-version      OpenGL major version "
+      "(default: " STR(
+          OPENGL_MAJOR_VERSION) ")\n"
+                                "  -omi, --opengl-minor-version      OpenGL "
+                                "minor version (default: " STR(
+                                    OPENGL_MINOR_VERSION) ")\n");
   exit(status_code);
 }
 
@@ -114,7 +138,7 @@ static unsigned int parse_uint(const char *arg, const char *value) {
 
   tmp_value = (unsigned long long)atoll(value);
 
-  if (tmp_value >= UINT_MAX) {
+  if (tmp_value > UINT_MAX) {
     invalid_value(arg, value);
   }
 
@@ -139,16 +163,21 @@ void args_parse(Parameters *params, int argc, char **argv) {
   params->auto_random_cycle = 4;
 #ifdef VIDEO_IN
   params->video_in.length = 0;
-  params->video_buffers = 2;
+  params->video_buffers = 1;
   params->video_size = 0;
   params->video_reconnect = true;
+  strlcpy(params->video_fourcc, "YUYV", 5);
 #endif /* VIDEO_IN */
   params->internal_size = 720;
   params->load_state = true;
   params->save_state = true;
+  params->auto_save = false;
   params->midi_reconnect = true;
   params->trace_midi = false;
   params->trace_fps = false;
+  params->glfw_backend = GLFW_BACKEND_ANY;
+  params->opengl_major = OPENGL_MAJOR_VERSION;
+  params->opengl_minor = OPENGL_MINOR_VERSION;
 
   for (int i = 1; i < argc; i++) {
     arg = argv[i];
@@ -159,8 +188,14 @@ void args_parse(Parameters *params, int argc, char **argv) {
       puts(PACKAGE " " VERSION);
       exit(EXIT_SUCCESS);
     } else if (is_arg(arg, "-p") || is_arg(arg, "--project")) {
+      if (strlen(value) == 0) {
+        invalid_value(arg, value);
+      }
       strlcpy(params->project_path, value, STR_LEN);
     } else if (is_arg(arg, "-c") || is_arg(arg, "--config")) {
+      if (strlen(value) == 0) {
+        invalid_value(arg, value);
+      }
       strlcpy(params->config_file, value, STR_LEN);
     } else if (is_arg(arg, "-hr") || is_arg(arg, "--hot-reload")) {
       params->hot_reload = true;
@@ -203,6 +238,10 @@ void args_parse(Parameters *params, int argc, char **argv) {
       params->save_state = true;
     } else if (is_arg(arg, "-nss") || is_arg(arg, "--no-save-state")) {
       params->save_state = false;
+    } else if (is_arg(arg, "-as") || is_arg(arg, "--auto-save")) {
+      params->auto_save = true;
+    } else if (is_arg(arg, "-nas") || is_arg(arg, "--no-auto-save")) {
+      params->auto_save = false;
     } else if (is_arg(arg, "-mr") || is_arg(arg, "--midi-reconnect")) {
       params->midi_reconnect = true;
     } else if (is_arg(arg, "-nmr") || is_arg(arg, "--no-midi-reconnect")) {
@@ -211,6 +250,24 @@ void args_parse(Parameters *params, int argc, char **argv) {
       params->trace_midi = true;
     } else if (is_arg(arg, "-tf") || is_arg(arg, "--trace-fps")) {
       params->trace_fps = true;
+    } else if (is_arg(arg, "--x11")) {
+      params->glfw_backend = GLFW_BACKEND_X11;
+    } else if (is_arg(arg, "--wayland")) {
+      params->glfw_backend = GLFW_BACKEND_WAYLAND;
+    } else if (is_arg(arg, "--cocoa")) {
+      params->glfw_backend = GLFW_BACKEND_COCOA;
+    } else if (is_arg(arg, "--win32")) {
+      params->glfw_backend = GLFW_BACKEND_WIN32;
+    } else if (is_arg(arg, "-oma") || is_arg(arg, "--opengl-major-version")) {
+      params->opengl_major = parse_uint(arg, value);
+      if (params->opengl_major == 0) {
+        invalid_value(arg, value);
+      }
+    } else if (is_arg(arg, "-omi") || is_arg(arg, "--opengl-minor-version")) {
+      params->opengl_minor = parse_uint(arg, value);
+      if (params->opengl_major == 0) {
+        invalid_value(arg, value);
+      }
     } else {
 #ifdef VIDEO_IN
       if (is_arg(arg, "-vi") || is_arg(arg, "--video-in")) {
@@ -218,6 +275,9 @@ void args_parse(Parameters *params, int argc, char **argv) {
           log_error("maximum video input reached");
           exit(EXIT_FAILURE);
         }
+        if (strlen(value) == 0) {
+          invalid_value(arg, value);
+        }
         strlcpy(params->video_in.values[params->video_in.length++], value,
                 STR_LEN);
       } else if (is_arg(arg, "-vb") || is_arg(arg, "--video-buffers")) {
@@ -234,6 +294,11 @@ void args_parse(Parameters *params, int argc, char **argv) {
         params->video_reconnect = true;
       } else if (is_arg(arg, "-nvr") || is_arg(arg, "--no-video-reconnect")) {
         params->video_reconnect = false;
+      } else if (is_arg(arg, "-vf") || is_arg(arg, "--video-fourcc")) {
+        if (strlen(value) == 0) {
+          invalid_value(arg, value);
+        }
+        strlcpy(params->video_fourcc, value, 5);
       } else {
         invalid_arg(arg);
       }

src/arr.c

@@ -12,7 +12,21 @@ unsigned int arr_uint_index_of(UintArray array, unsigned int value) {
   return ARRAY_NOT_FOUND;
 }
 
+bool arr_string_match(StringArray array, const char *needle) {
+  for (unsigned int i = 0; i < array.length; i++) {
+    if (strncmp(array.values[i], needle, strlen(array.values[i])) == 0) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 unsigned int arr_uint_remap_index(UintArray offsets, unsigned int *index) {
+  if (offsets.length == 0) {
+    return 0;
+  }
+
   for (unsigned int i = offsets.length - 1; i > 0; i--) {
     if (*index >= offsets.values[i]) {
       *index -= offsets.values[i];

src/arr.h

@@ -7,4 +7,6 @@ unsigned int arr_uint_index_of(UintArray array, unsigned int value);
 
 unsigned int arr_uint_remap_index(UintArray offsets, unsigned int *index);
 
+bool arr_string_match(StringArray array, const char *needle);
+
 #endif /* ARR_H */

src/config.h

@@ -87,4 +87,30 @@
 #define MAX_TAP_VALUES 10
 #endif
 
+/* STATE */
+
+#ifndef STATE_AUTO_SAVE_SECONDS
+#define STATE_AUTO_SAVE_SECONDS 0.1
+#endif
+
+/* OPENGL */
+
+#ifndef OPENGL_MAJOR_VERSION
+#define OPENGL_MAJOR_VERSION 4
+#endif
+
+#ifndef OPENGL_MINOR_VERSION
+#define OPENGL_MINOR_VERSION 6
+#endif
+
+/* GLFW CONSTANTS */
+
+#ifndef GLFW_BACKENDS
+#define GLFW_BACKEND_ANY 0
+#define GLFW_BACKEND_X11 1
+#define GLFW_BACKEND_WAYLAND 2
+#define GLFW_BACKEND_COCOA 3
+#define GLFW_BACKEND_WIN32 4
+#endif
+
 #endif /* CONFIG_H */

src/config_file.c

@@ -68,8 +68,7 @@ void config_file_read(ConfigFile *config, const char *path) {
   char *line;
   char *rest;
 
-  config->map = hashmap_new(sizeof(ConfigFileItem), 0, 0, 0, item_hash,
+  config->map = NULL;
-                            item_compare, NULL, NULL);
 
   file_read(&file, path);
 
@@ -78,6 +77,9 @@ void config_file_read(ConfigFile *config, const char *path) {
     return;
   }
 
+  config->map = hashmap_new(sizeof(ConfigFileItem), 0, 0, 0, item_hash,
+                            item_compare, NULL, NULL);
+
   config->error = false;
 
   line = strtok_r(file.content, "\n", &rest);
@@ -138,4 +140,8 @@ unsigned int config_file_get_int(const ConfigFile *config, const char *key,
   return (unsigned int)atoi(item->value);
 }
 
-void config_file_free(const ConfigFile *config) { hashmap_free(config->map); }
+void config_file_free(const ConfigFile *config) {
+  if (config->map != NULL) {
+    hashmap_free(config->map);
+  }
+}

src/constants.h

@@ -3,10 +3,10 @@
 #ifndef CONSTANTS_H
 #define CONSTANTS_H
 
-static char *vertex_shader_text =
+static const char *vertex_shader_text =
-    "#version 460\n"
+    "#version 140\n"
     "const mat4 mvp = "
-    "{{2.,0.,0.,0.},{0.,2.,0.,0.},{0.,0.,2.,0.},{-1.,-1.,1.,1.}};\n"
+    "mat4(vec4(2.,0.,0.,0.),vec4(0.,2.,0.,0.),vec4(0.,0.,2.,0.),vec4(-1.,-1.,1.,1.));\n"
     "in vec2 vPos;\n"
     "out vec2 vUV;\n"
     "void main()\n"

src/file.c

@@ -26,6 +26,7 @@ bool file_should_update(const File *file) {
 
 bool file_update(File *file) {
   long length;
+  size_t read_length;
   FILE *file_pointer;
 
   // free remaining data
@@ -47,6 +48,12 @@ bool file_update(File *file) {
   // read file length
   fseek(file_pointer, 0, SEEK_END);
   length = ftell(file_pointer);
+  if (length == -1L) {
+    file->error = true;
+    fclose(file_pointer);
+    log_error("Cannot get file length for '%s'", file->path);
+    return false;
+  }
   // init buffer
   fseek(file_pointer, 0, SEEK_SET);
   file->content = malloc(length + 1);
@@ -57,7 +64,13 @@ bool file_update(File *file) {
     return false;
   }
   // read file
-  fread(file->content, sizeof(char), length, file_pointer);
+  read_length = fread(file->content, sizeof(char), length, file_pointer);
+  if (read_length != (unsigned)length) {
+    file->error = true;
+    fclose(file_pointer);
+    log_error("Cannot read complete file '%s'", file->path);
+    return false;
+  }
   // close file
   fclose(file_pointer);
   // append null byte
@@ -96,10 +109,12 @@ void file_dump(const char *path, const char *content) {
   fclose(file_pointer);
 }
 
-void file_write(const char *path, const StringArray *lines) {
+void file_write(const char *path, const StringArray *lines, const bool log) {
   FILE *file_pointer;
 
-  log_info("Writing %s...", path);
+  if (log) {
+    log_info("Writing %s...", path);
+  }
 
   // open file
   file_pointer = fopen(path, "w");
@@ -117,8 +132,9 @@ void file_write(const char *path, const StringArray *lines) {
   fclose(file_pointer);
 }
 
-void file_free(const File *file) {
+void file_free(File *file) {
-  if (!file->error) {
+  if (!file->error && file->content != NULL) {
     free(file->content);
+    file->content = NULL;
   }
 }

src/file.h

@@ -9,10 +9,10 @@ bool file_should_update(const File *file);
 
 bool file_update(File *file);
 
-void file_write(const char *path, const StringArray *lines);
+void file_write(const char *path, const StringArray *lines, const bool log);
 
 void file_dump(const char *path, const char *content);
 
-void file_free(const File *file);
+void file_free(File *file);
 
 #endif /* FILE_H */

src/forge.c

@@ -85,7 +85,8 @@ static void init_inputs() {
 
   for (unsigned int i = 0; i < init_params.video_in.length; i++) {
     video_init(&video_captures.values[i], init_params.video_in.values[i],
-               init_params.video_size, init_params.video_buffers);
+               init_params.video_size, init_params.video_buffers,
+               init_params.video_fourcc, true);
 
     if (!video_captures.values[i].error) {
       context.input_resolutions[i][0] = video_captures.values[i].width;
@@ -101,15 +102,19 @@ static void start_video_background_read(VideoCapture *video_capture,
                                         Context *context, int input_index,
                                         bool trace_fps) {
   pthread_t thread;
-  struct VideoBackgroundReadArgs *process_args =
+  VideoBackgroundReadArgs *process_args =
-      (struct VideoBackgroundReadArgs *)malloc(
+      (VideoBackgroundReadArgs *)malloc(sizeof(VideoBackgroundReadArgs));
-          sizeof(struct VideoBackgroundReadArgs));
   process_args->capture = video_capture;
   process_args->context = context;
   process_args->input_index = input_index;
   process_args->trace_fps = trace_fps;
-  pthread_create(&thread, NULL, video_background_read, (void *)process_args);
+  if (pthread_create(&thread, NULL, video_background_read,
-  pthread_detach(thread);
+                     (void *)process_args) == 0) {
+    pthread_detach(thread);
+  } else {
+    log_error("background video acquisition failed to start");
+    free(process_args);
+  }
 }
 
 static void *
@@ -121,7 +126,8 @@ background_reconnect_video_captures(__attribute__((unused)) void *args) {
       if (video_captures.values[i].disconnected) {
         video_free(&video_captures.values[i]);
         video_init(&video_captures.values[i], init_params.video_in.values[i],
-                   init_params.video_size, init_params.video_buffers);
+                   init_params.video_size, init_params.video_buffers,
+                   init_params.video_fourcc, false);
 
         if (!video_captures.values[i].error) {
           context.input_resolutions[i][0] = video_captures.values[i].width;
@@ -147,8 +153,12 @@ static void start_video_captures() {
     }
   }
   if (init_params.video_reconnect) {
-    pthread_create(&thread, NULL, background_reconnect_video_captures, NULL);
+    if (pthread_create(&thread, NULL, background_reconnect_video_captures,
-    pthread_detach(thread);
+                       NULL) == 0) {
+      pthread_detach(thread);
+    } else {
+      log_info("background video capture reconnect failed to start");
+    }
   }
 }
 
@@ -192,26 +202,35 @@ static void midi_callback(unsigned char code, unsigned char value) {
 
 static void start_state_background_write() {
   pthread_t thread;
-  struct StateBackgroundWriteArgs *process_args =
+  StateBackgroundWriteArgs *process_args =
-      (struct StateBackgroundWriteArgs *)malloc(
+      (StateBackgroundWriteArgs *)malloc(sizeof(StateBackgroundWriteArgs));
-          sizeof(struct StateBackgroundWriteArgs));
   process_args->context = &context;
   process_args->state_config = project.state_config;
   process_args->midi = &midi;
-  pthread_create(&thread, NULL, state_background_write, process_args);
+  process_args->auto_save = init_params.auto_save;
-  pthread_detach(thread);
+  if (pthread_create(&thread, NULL, state_background_write, process_args) ==
+      0) {
+    pthread_detach(thread);
+  } else {
+    log_error("background writing failed to start");
+    free(process_args);
+  }
 }
 
 static void start_midi_background_listen() {
   pthread_t thread;
-  struct MidiBackgroundListenArgs *process_args =
+  MidiBackgroundListenArgs *process_args =
-      (struct MidiBackgroundListenArgs *)malloc(
+      (MidiBackgroundListenArgs *)malloc(sizeof(MidiBackgroundListenArgs));
-          sizeof(struct MidiBackgroundListenArgs));
   process_args->device = &midi;
   process_args->context = &context;
   process_args->event_callback = midi_callback;
-  pthread_create(&thread, NULL, midi_background_listen, process_args);
+  if (pthread_create(&thread, NULL, midi_background_listen, process_args) ==
-  pthread_detach(thread);
+      0) {
+    pthread_detach(thread);
+  } else {
+    log_error("background midi acquisition failed to start");
+    free(process_args);
+  }
 }
 
 static void *background_reconnect_midi(__attribute__((unused)) void *args) {
@@ -219,7 +238,8 @@ static void *background_reconnect_midi(__attribute__((unused)) void *args) {
   while (!context.stop) {
     sleep(1);
     if (!midi.connected) {
-      midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"));
+      midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"),
+                false);
       if (midi.connected) {
         start_midi_background_listen();
       }
@@ -231,15 +251,18 @@ static void *background_reconnect_midi(__attribute__((unused)) void *args) {
 static void init_midi() {
   pthread_t thread;
 
-  midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"));
+  midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"), true);
 
   if (midi.connected) {
     start_midi_background_listen();
   }
 
   if (init_params.midi_reconnect) {
-    pthread_create(&thread, NULL, background_reconnect_midi, NULL);
+    if (pthread_create(&thread, NULL, background_reconnect_midi, NULL) == 0) {
-    pthread_detach(thread);
+      pthread_detach(thread);
+    } else {
+      log_error("background midi reconnect failed to start");
+    }
   }
 }
 
@@ -264,13 +287,15 @@ static bool init(const Parameters *params) {
 
   start_state_background_write();
 
-  window_startup(error_callback);
+  window_startup(error_callback, params->glfw_backend);
 
+  context.tex_resolution[0] = params->internal_size;
   context.tex_resolution[1] = params->internal_size;
 
   if (params->output) {
     window_output = window_init(PACKAGE " " VERSION, params->output_screen,
-                                params->windowed, NULL, key_callback);
+                                params->windowed, params->opengl_major,
+                                params->opengl_minor, NULL, key_callback);
 
     window_use(window_output, &context);
 
@@ -282,7 +307,8 @@ static bool init(const Parameters *params) {
   if (params->monitor) {
     window_monitor =
         window_init(PACKAGE " " VERSION " (monitor)", params->monitor_screen,
-                    params->windowed, window_output, key_callback);
+                    params->windowed, params->opengl_major,
+                    params->opengl_minor, window_output, key_callback);
 
     window_use(window_monitor, &context);
 
@@ -292,6 +318,10 @@ static bool init(const Parameters *params) {
   }
 
 #ifdef VIDEO_IN
+  if (params->output && params->monitor) {
+    window_use(window_output, &context);
+  }
+
   shaders_link_inputs(&program, &project, &video_captures,
                       init_params.video_buffers);
 #endif /* VIDEO_IN */
@@ -363,8 +393,6 @@ static void shutdown() {
     state_save(&context, project.state_config);
   }
 
-  shaders_free(&program);
-
   if (window_output != NULL) {
     window_use(window_output, &context);
 
@@ -377,6 +405,8 @@ static void shutdown() {
     shaders_free_window(&program, init_params.output);
   }
 
+  shaders_free(&program);
+
 #ifdef VIDEO_IN
   free_video_captures();
 #endif /* VIDEO_IN */

src/midi.c

@@ -6,19 +6,30 @@
 
 #include "config.h"
 
-void midi_open(MidiDevice *device, const char *name) {
+void snd_no_log(__attribute__((unused)) int prio,
+                __attribute__((unused)) int interface,
+                __attribute__((unused)) const char *file,
+                __attribute__((unused)) int line,
+                __attribute__((unused)) const char *function,
+                __attribute__((unused)) int errcode,
+                __attribute__((unused)) const char *fmt,
+                __attribute__((unused)) va_list arg) {}
+
+void midi_open(MidiDevice *device, const char *name, bool log_error) {
   strlcpy(device->name, name, STR_LEN);
+  device->connected = false;
   device->input = NULL;
   device->output = NULL;
 
-  snd_rawmidi_open(&device->input, &device->output, name, SND_RAWMIDI_NONBLOCK);
+  device->connected = snd_rawmidi_open(&device->input, &device->output, name,
-
+                                       SND_RAWMIDI_SYNC) == 0 &&
-  device->connected = device->input != NULL && device->output != NULL;
+                      device->input != NULL && device->output != NULL;
-
+  if (log_error) {
-  if (device->connected) {
+    if (device->connected) {
-    log_info("(%s) MIDI open", name);
+      log_info("(%s) MIDI open", name);
-  } else {
+    } else {
-    log_warn("(%s) MIDI open failed", name);
+      log_warn("(%s) MIDI open failed", name);
+    }
   }
 }
 
@@ -45,7 +56,7 @@ void midi_close(MidiDevice *device) {
 }
 
 void *midi_background_listen(void *args) {
-  MidiBackgroundReadArgs *process_args = (MidiBackgroundReadArgs *)args;
+  MidiBackgroundListenArgs *process_args = (MidiBackgroundListenArgs *)args;
   MidiDevice *device = process_args->device;
   Context *context = process_args->context;
 
@@ -57,6 +68,12 @@ void *midi_background_listen(void *args) {
 
   snd_rawmidi_info_malloc(&info);
 
+  if (info == NULL) {
+    log_error("(%s) failed to allocate MIDI info", device->name);
+    free(process_args);
+    pthread_exit(NULL);
+  }
+
   while (!context->stop && snd_rawmidi_info(device->output, info) == 0) {
     bytes_read = snd_rawmidi_read(device->input, buffer, 3);
     if (bytes_read == 3) {
@@ -73,5 +90,6 @@ void *midi_background_listen(void *args) {
     log_info("(%s) background acquisition stopped after error", device->name);
     midi_close(device);
   }
+  free(process_args);
   pthread_exit(NULL);
 }

src/midi.h

@@ -3,7 +3,7 @@
 #ifndef MIDI_H
 #define MIDI_H
 
-void midi_open(MidiDevice *device, const char *name);
+void midi_open(MidiDevice *device, const char *name, bool log_error);
 void midi_write(MidiDevice device, unsigned char code, unsigned char value);
 void *midi_background_listen(void *args);
 void midi_close(MidiDevice *device);

src/project.c

@@ -48,6 +48,8 @@ static bool parse_fragment_shader_file(Project *project, unsigned int i) {
         include_end - project->fragment_shaders[i][0].content,
         tmp_file.content);
 
+    free(project->fragment_shaders[i][0].content);
+
     project->fragment_shaders[i][0].content = new_content;
 
     file_free(&tmp_file);
@@ -102,6 +104,12 @@ void project_init(Project *project, const char *project_path,
 
   project->sub_counts.length = project->frag_count;
 
+  for (unsigned int i = 0; i < project->frag_count; i++) {
+    for (unsigned int j = 0; j < MAX_SUB_FILE + 1; j++) {
+      project->fragment_shaders[i][j].content = NULL;
+    }
+  }
+
   for (unsigned int i = 0; i < project->frag_count; i++) {
     project->sub_counts.values[i] = 0;
     if (!read_fragment_shader_file(project, frag_prefix, i)) {
@@ -134,9 +142,10 @@ void project_reload(Project *project, void (*reload_callback)(unsigned int)) {
   }
 }
 
-void project_free(const Project *project) {
+void project_free(Project *project) {
   for (unsigned int i = 0; i < project->frag_count; i++) {
     file_free(&project->fragment_shaders[i][0]);
+    // other sub files contents are freed at parse_fragment_shader_file
   }
 
   config_file_free(&project->config);

src/project.h

@@ -8,6 +8,6 @@ void project_init(Project *project, const char *project_path,
 
 void project_reload(Project *project, void (*reload_callback)(unsigned int));
 
-void project_free(const Project *project);
+void project_free(Project *project);
 
 #endif /* PROJECT_H */

src/rand.c

@@ -4,7 +4,7 @@ static unsigned long long mcg_state = 0xcafef00dd15ea5e5u; // Must be odd
 static unsigned long long const multiplier = 6364136223846793005u;
 
 // https://en.wikipedia.org/wiki/Permuted_congruential_generator
-static unsigned long rand(void) {
+static unsigned long fast_rand(void) {
   unsigned long long x = mcg_state;
   unsigned count = (unsigned)(x >> 61);
 
@@ -15,9 +15,9 @@ static unsigned long rand(void) {
 
 void rand_set_seed(unsigned long long seed) {
   mcg_state = 2 * seed + 1;
-  (void)rand();
+  (void)fast_rand();
 }
 
 unsigned int rand_uint(const unsigned int max) {
-  return max == 0 ? 0 : (unsigned int)(rand() % max);
+  return max == 0 ? 0 : (unsigned int)(fast_rand() % max);
 }

src/shaders.c

@@ -24,7 +24,7 @@
 #include <GLFW/glfw3native.h>
 #endif /* VIDEO_IN */
 
-static const GLuint unused_uniform = (GLuint)-1;
+static const GLint UNUSED_UNIFORM = -1;
 
 static bool check_glerror_ro(const char *context) {
   unsigned int code;
@@ -60,13 +60,13 @@ static void gl_debug_callback(GLenum source, GLenum type, GLuint id,
 
 #endif /* GL_DEBUG */
 
-static bool check_eglerror_ro(const char *context) {
+static bool check_eglerror_ro(__attribute__((unused)) const char *context) {
 #ifdef VIDEO_IN
   unsigned int code;
 
   code = eglGetError();
 
-  if (code > 0 && code != EGL_SUCCESS) {
+  if (code != EGL_SUCCESS) {
     log_warn("EGL Error: %04x (%s)", code, context);
     return true;
   }
@@ -105,6 +105,13 @@ static bool init_gl(ShaderProgram *program) {
   glDebugMessageCallback(gl_debug_callback, NULL);
 #endif /* GL_DEBUG */
 
+  // print OpenGL info
+  log_info("[OpenGL] Vendor: %s", glGetString(GL_VENDOR));
+  log_info("[OpenGL] Renderer: %s", glGetString(GL_RENDERER));
+  log_info("[OpenGL] Version: %s", glGetString(GL_VERSION));
+  log_info("[OpenGL] Shading language: %s",
+           glGetString(GL_SHADING_LANGUAGE_VERSION));
+
 #ifdef VIDEO_IN
   program->egl_display = glfwGetEGLDisplay();
   if (program->egl_display == EGL_NO_DISPLAY) {
@@ -245,12 +252,6 @@ static bool link_input_to_texture(ShaderProgram *program, VideoCapture *input,
     return false;
   }
 
-  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, input->width, input->height, 0, GL_RGB,
-               GL_UNSIGNED_BYTE, 0);
-  if (check_glerror(program, "link_input_to_texture/glTexImage2D")) {
-    return false;
-  }
-
   // https://registry.khronos.org/OpenGL/extensions/EXT/EXT_EGL_image_storage.txt
   glEGLImageTargetTexStorageEXT(GL_TEXTURE_2D, dma_image, NULL);
   if (check_eglerror(program,
@@ -411,7 +412,7 @@ static bool compile_shader(GLuint shader_id, const char *name,
   glGetShaderiv(shader_id, GL_COMPILE_STATUS, &status_params);
   check_glerror_ro("compile_shader/glGetShaderiv");
 
-  glGetShaderInfoLog(shader_id, 1024, NULL, (GLchar *)&log);
+  glGetShaderInfoLog(shader_id, STR_LEN, NULL, (GLchar *)log);
   check_glerror_ro("compile_shader/glGetShaderInfoLog");
 
   if (status_params == GL_FALSE) {
@@ -462,6 +463,8 @@ static bool init_single_program(ShaderProgram *program, unsigned int i,
   unsigned int index2;
   char name[STR_LEN];
   const char *prefix;
+  GLint link_status;
+  char link_log[STR_LEN];
 
   program->programs[i] = glCreateProgram();
   if (check_glerror(program, "init_single_program/glCreateProgram")) {
@@ -479,6 +482,19 @@ static bool init_single_program(ShaderProgram *program, unsigned int i,
     return false;
   }
 
+  glGetProgramiv(program->programs[i], GL_LINK_STATUS, &link_status);
+  if (check_glerror(program, "init_single_program/glGetProgramiv")) {
+    return false;
+  }
+  if (link_status != GL_TRUE) {
+    glGetProgramInfoLog(program->programs[i], STR_LEN, NULL, link_log);
+    if (check_glerror(program, "init_single_program/glGetProgramInfoLog")) {
+      return false;
+    }
+    log_error("Program %d link error: %s", i + 1, link_log);
+    return false;
+  }
+
   // create uniforms pointers
   program->itime_locations[i] = glGetUniformLocation(
       program->programs[i],
@@ -651,27 +667,27 @@ static void update_viewport(ShaderProgram *program, const Context *context) {
   }
 }
 
-static void write_uniform_1f(GLuint location, float value) {
+static void write_uniform_1f(GLint location, float value) {
-  if (location != unused_uniform) {
+  if (location != UNUSED_UNIFORM) {
     glUniform1f(location, value);
   }
 }
 
-static void write_uniform_1i(GLuint location, unsigned int value) {
+static void write_uniform_1i(GLint location, unsigned int value) {
-  if (location != unused_uniform) {
+  if (location != UNUSED_UNIFORM) {
     glUniform1i(location, (const GLint)value);
   }
 }
 
-static void write_uniform_2f(GLuint location, const vec2 *value) {
+static void write_uniform_2f(GLint location, const vec2 *value) {
-  if (location != unused_uniform) {
+  if (location != UNUSED_UNIFORM) {
     glUniform2fv(location, 1, (const GLfloat *)value);
   }
 }
 
-static void write_uniform_multi_3f(GLuint location, unsigned int count,
+static void write_uniform_multi_3f(GLint location, unsigned int count,
                                    const vec3 *value) {
-  if (location != unused_uniform) {
+  if (location != UNUSED_UNIFORM) {
     glUniform3fv(location, count, (const GLfloat *)value);
   }
 }
@@ -759,7 +775,7 @@ static void use_program(const ShaderProgram *program, int i, bool output,
     if (program->sub_locations[i * program->sub_variant_count *
                                    program->sub_type_count +
                                j * program->sub_variant_count + k] !=
-        unused_uniform) {
+        UNUSED_UNIFORM) {
       subroutines[subcount++] =
           program->sub_locations[i * program->sub_variant_count *
                                      program->sub_type_count +
@@ -935,6 +951,12 @@ void shaders_free(const ShaderProgram *program) {
   }
   check_glerror_ro("shaders_free/glDeleteProgram");
 
+  glDeleteShader(program->vertex_shader);
+  for (unsigned int i = 0; i < program->frag_count; i++) {
+    glDeleteShader(program->fragment_shaders[i]);
+  }
+  check_glerror_ro("shaders_free/glDeleteShader");
+
   glDeleteFramebuffers(program->frag_count, program->frame_buffers);
   check_glerror_ro("shaders_free/glDeleteFramebuffers");
 

src/state.c

@@ -12,6 +12,7 @@
 #include "rand.h"
 #include "state.h"
 #include "tempo.h"
+#include "timer.h"
 
 static void safe_midi_write(MidiDevice midi, unsigned int code,
                             unsigned char value) {
@@ -98,11 +99,15 @@ static void randomize(Context *context, StateConfig state_config) {
       l = state_config.values_offsets.values[part] +
           k * state_config.group_counts.values[part] + j;
 
-      if (arr_uint_index_of(state_config.fader_codes,
+      if (arr_uint_index_of(state_config.random_ignored, (l * 3) + (i % 3)) ==
-                            state_config.codes.values[i]) != ARRAY_NOT_FOUND) {
+          ARRAY_NOT_FOUND) {
-        context->values[l][i % 3] = (float)rand_uint(MIDI_MAX + 1) / MIDI_MAX;
+        if (arr_uint_index_of(state_config.fader_codes,
-      } else {
+                              state_config.codes.values[i]) !=
-        context->values[l][i % 3] = rand_uint(2) == 1 ? 1 : 0;
+            ARRAY_NOT_FOUND) {
+          context->values[l][i % 3] = (float)rand_uint(MIDI_MAX + 1) / MIDI_MAX;
+        } else {
+          context->values[l][i % 3] = rand_uint(2) == 1 ? 1 : 0;
+        }
       }
     }
   }
@@ -175,50 +180,117 @@ static void load_from_index_file(Context *context, StateConfig state_config,
 }
 
 static void save_to_file(const Context *context, StateConfig state_config,
-                         const char *state_file) {
+                         const char *state_file, const bool log) {
   StringArray lines;
 
-  log_info("Saving state to '%s'...", state_file);
+  if (log) {
+    log_info("Saving state to '%s'...", state_file);
+  }
 
   lines.length = 0;
 
+  snprintf(lines.values[lines.length++], STR_LEN, "time=%f", context->time);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
+  snprintf(lines.values[lines.length++], STR_LEN, "beats=%f",
+           context->tempo_total);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
+  snprintf(lines.values[lines.length++], STR_LEN, "demo=%d",
+           context->demo ? 1 : 0);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
+  snprintf(lines.values[lines.length++], STR_LEN, "auto_random=%d",
+           context->auto_random ? 1 : 0);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
+  snprintf(lines.values[lines.length++], STR_LEN, "auto_random_cycle=%d",
+           context->auto_random_cycle);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
   snprintf(lines.values[lines.length++], STR_LEN, "tempo=%d",
            (unsigned int)context->tempo.tempo);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
   snprintf(lines.values[lines.length++], STR_LEN, "page=%d", context->page);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
   snprintf(lines.values[lines.length++], STR_LEN, "selected=%d",
            context->selected);
+  if (lines.length > ARRAY_SIZE) {
+    log_error("Too many values to save");
+    return;
+  }
 
   for (unsigned int i = 0; i < context->state.length; i++) {
     snprintf(lines.values[lines.length++], STR_LEN, "seed_%d=%d", i,
              context->seeds[i]);
+    if (lines.length > ARRAY_SIZE) {
+      log_error("Too many values to save");
+      return;
+    }
     snprintf(lines.values[lines.length++], STR_LEN, "state_%d=%d", i,
              context->state.values[i]);
+    if (lines.length > ARRAY_SIZE) {
+      log_error("Too many values to save");
+      return;
+    }
   }
 
   for (unsigned int i = 0; i < state_config.group_active_counts.length; i++) {
     snprintf(lines.values[lines.length++], STR_LEN, "active_%d=%d", i,
              context->active[i]);
+    if (lines.length > ARRAY_SIZE) {
+      log_error("Too many values to save");
+      return;
+    }
   }
 
   for (unsigned int i = 0; i < state_config.value_count; i++) {
     snprintf(lines.values[lines.length++], STR_LEN, "value_%d_x=%d", i,
              (unsigned int)(context->values[i][0] * MIDI_MAX));
+    if (lines.length > ARRAY_SIZE) {
+      log_error("Too many values to save");
+      return;
+    }
     snprintf(lines.values[lines.length++], STR_LEN, "value_%d_y=%d", i,
              (unsigned int)(context->values[i][1] * MIDI_MAX));
+    if (lines.length > ARRAY_SIZE) {
+      log_error("Too many values to save");
+      return;
+    }
     snprintf(lines.values[lines.length++], STR_LEN, "value_%d_z=%d", i,
              (unsigned int)(context->values[i][2] * MIDI_MAX));
+    if (lines.length > ARRAY_SIZE) {
+      log_error("Too many values to save");
+      return;
+    }
   }
 
-  file_write(state_file, &lines);
+  file_write(state_file, &lines, log);
 }
 
 static void save_to_default_file(const Context *context,
-                                 StateConfig state_config) {
+                                 StateConfig state_config, const bool log) {
   char state_file[STR_LEN];
 
   snprintf(state_file, STR_LEN, "%s.txt", state_config.save_file_prefix);
 
-  save_to_file(context, state_config, state_file);
+  save_to_file(context, state_config, state_file, log);
 }
 
 static void save_to_index_file(const Context *context, StateConfig state_config,
@@ -228,16 +300,22 @@ static void save_to_index_file(const Context *context, StateConfig state_config,
   snprintf(state_file, STR_LEN, "%s.%d.txt", state_config.save_file_prefix,
            index);
 
-  save_to_file(context, state_config, state_file);
+  save_to_file(context, state_config, state_file, true);
 }
 
 void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
   unsigned int offset;
   unsigned int count;
+  unsigned int length;
+  unsigned int value_offset;
+  StringArray ignored_codes;
   char name[STR_LEN];
 
-  state_config->select_page_codes.length =
+  length = config_file_get_int(config, "SELECT_PAGE_COUNT", 0);
-      config_file_get_int(config, "SELECT_PAGE_COUNT", 0);
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
+  state_config->select_page_codes.length = length;
 
   for (unsigned int i = 0; i < state_config->select_page_codes.length; i++) {
     snprintf(name, STR_LEN, "SELECT_PAGE_%d", i + 1);
@@ -245,8 +323,11 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
         config_file_get_int(config, name, UNSET_MIDI_CODE);
   }
 
-  state_config->select_item_codes.length =
+  length = config_file_get_int(config, "SELECT_ITEM_COUNT", 0);
-      config_file_get_int(config, "SELECT_ITEM_COUNT", 0);
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
+  state_config->select_item_codes.length = length;
 
   for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
     snprintf(name, STR_LEN, "SELECT_ITEM_%d", i + 1);
@@ -257,8 +338,11 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
   state_config->state_max = state_config->select_page_codes.length *
                             state_config->select_item_codes.length;
 
-  state_config->select_frag_codes.length =
+  length = config_file_get_int(config, "FRAG_COUNT", 1);
-      config_file_get_int(config, "FRAG_COUNT", 1);
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
+  state_config->select_frag_codes.length = length;
 
   for (unsigned int i = 0; i < state_config->select_frag_codes.length; i++) {
     snprintf(name, STR_LEN, "SELECT_FRAG_%d", i + 1);
@@ -266,11 +350,26 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
         config_file_get_int(config, name, UNSET_MIDI_CODE);
   }
 
+  length = config_file_get_int(config, "ARI_COUNT", 0);
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
+  ignored_codes.length = length;
+
+  for (unsigned int i = 0; i < ignored_codes.length; i++) {
+    snprintf(name, STR_LEN, "ARI_%d", i + 1);
+    strlcpy(ignored_codes.values[i],
+            config_file_get_str(config, name, "unkown"), STR_LEN);
+  }
+
+  length = config_file_get_int(config, "GROUP_COUNT", 0);
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
   state_config->group_active_counts.length = state_config->group_counts.length =
       state_config->group_active_offsets.length =
           state_config->group_offsets.length =
-              state_config->values_offsets.length =
+              state_config->values_offsets.length = length;
-                  config_file_get_int(config, "GROUP_COUNT", 0);
 
   count = 0;
   for (unsigned int i = 0; i < state_config->group_active_counts.length; i++) {
@@ -307,27 +406,74 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
 
   state_config->value_count = offset;
 
+  length = count * 3;
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
   state_config->codes.length = count * 3;
+  state_config->random_ignored.length = 0;
 
   for (unsigned int i = 0; i < state_config->group_counts.length; i++) {
     offset = state_config->group_offsets.values[i];
+    value_offset = state_config->values_offsets.values[i];
     for (unsigned int j = 0; j < state_config->group_counts.values[i]; j++) {
-      snprintf(name, STR_LEN, "GROUP_%d_%d_X", i + 1, j + 1);
+      if ((offset + j) * 3 < ARRAY_SIZE) {
-      state_config->codes.values[(offset + j) * 3] =
+        snprintf(name, STR_LEN, "GROUP_%d_%d_X", i + 1, j + 1);
-          config_file_get_int(config, name, UNSET_MIDI_CODE);
+        state_config->codes.values[(offset + j) * 3] =
+            config_file_get_int(config, name, UNSET_MIDI_CODE);
+        for (unsigned int k = 0;
+             k < state_config->group_active_counts.values[i]; k++) {
+          snprintf(name, STR_LEN, "GROUP_%d_%d_X_%d", i + 1, j + 1, k + 1);
+          if (arr_string_match(ignored_codes, name)) {
+            state_config->random_ignored
+                .values[state_config->random_ignored.length++] =
+                (value_offset + k * state_config->group_counts.values[i] + j) *
+                3;
+          }
+        }
+      }
 
-      snprintf(name, STR_LEN, "GROUP_%d_%d_Y", i + 1, j + 1);
+      if ((offset + j) * 3 + 1 < ARRAY_SIZE) {
-      state_config->codes.values[(offset + j) * 3 + 1] =
+        snprintf(name, STR_LEN, "GROUP_%d_%d_Y", i + 1, j + 1);
-          config_file_get_int(config, name, UNSET_MIDI_CODE);
+        state_config->codes.values[(offset + j) * 3 + 1] =
+            config_file_get_int(config, name, UNSET_MIDI_CODE);
+        for (unsigned int k = 0;
+             k < state_config->group_active_counts.values[i]; k++) {
+          snprintf(name, STR_LEN, "GROUP_%d_%d_Y_%d", i + 1, j + 1, k + 1);
+          if (arr_string_match(ignored_codes, name)) {
+            state_config->random_ignored
+                .values[state_config->random_ignored.length++] =
+                (value_offset + k * state_config->group_counts.values[i] + j) *
+                    3 +
+                1;
+          }
+        }
+      }
 
-      snprintf(name, STR_LEN, "GROUP_%d_%d_Z", i + 1, j + 1);
+      if ((offset + j) * 3 + 2 < ARRAY_SIZE) {
-      state_config->codes.values[(offset + j) * 3 + 2] =
+        snprintf(name, STR_LEN, "GROUP_%d_%d_Z", i + 1, j + 1);
-          config_file_get_int(config, name, UNSET_MIDI_CODE);
+        state_config->codes.values[(offset + j) * 3 + 2] =
+            config_file_get_int(config, name, UNSET_MIDI_CODE);
+        for (unsigned int k = 0;
+             k < state_config->group_active_counts.values[i]; k++) {
+          snprintf(name, STR_LEN, "GROUP_%d_%d_Z_%d", i + 1, j + 1, k + 1);
+          if (arr_string_match(ignored_codes, name)) {
+            state_config->random_ignored
+                .values[state_config->random_ignored.length++] =
+                (value_offset + k * state_config->group_counts.values[i] + j) *
+                    3 +
+                2;
+          }
+        }
+      }
     }
   }
 
-  state_config->fader_codes.length =
+  length = config_file_get_int(config, "FADER_COUNT", 0);
-      config_file_get_int(config, "FADER_COUNT", 0);
+  if (length > ARRAY_SIZE) {
+    length = ARRAY_SIZE;
+  }
+  state_config->fader_codes.length = length;
 
   for (unsigned int i = 0; i < state_config->fader_codes.length; i++) {
     snprintf(name, STR_LEN, "FADER_%d", i + 1);
@@ -358,8 +504,11 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
       config_file_get_int(config, "KEY_TEMPO_UP", 1265);
 
   if (config_file_has(config, "KEY_LOAD_COUNT")) {
-    state_config->key_load.length =
+    length = config_file_get_int(config, "KEY_LOAD_COUNT", 0);
-        config_file_get_int(config, "KEY_LOAD_COUNT", 0);
+    if (length > ARRAY_SIZE) {
+      length = ARRAY_SIZE;
+    }
+    state_config->key_load.length = length;
 
     for (unsigned int i = 0; i < state_config->key_load.length; i++) {
       snprintf(name, STR_LEN, "KEY_LOAD_%d", i + 1);
@@ -380,8 +529,11 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
   }
 
   if (config_file_has(config, "KEY_SAVE_COUNT")) {
-    state_config->key_save.length =
+    length = config_file_get_int(config, "KEY_SAVE_COUNT", 0);
-        config_file_get_int(config, "KEY_SAVE_COUNT", 0);
+    if (length > ARRAY_SIZE) {
+      length = ARRAY_SIZE;
+    }
+    state_config->key_save.length = length;
 
     for (unsigned int i = 0; i < state_config->key_save.length; i++) {
       snprintf(name, STR_LEN, "KEY_SAVE_%d", i + 1);
@@ -409,6 +561,9 @@ static bool compute_event(Context *context, StateConfig state_config,
   unsigned int j;
   unsigned int k;
   unsigned int part;
+  bool found;
+
+  found = false;
 
   // PAGE CHANGE
   i = arr_uint_index_of(state_config.select_page_codes, code);
@@ -417,7 +572,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       context->page = i;
       update_page(context, state_config, midi);
     }
-    return true;
+    found = true;
   }
 
   // TARGET CHANGE
@@ -427,7 +582,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       context->selected = i;
       update_page(context, state_config, midi);
     }
-    return true;
+    found = true;
   }
 
   // ITEM CHANGE
@@ -438,7 +593,7 @@ static bool compute_event(Context *context, StateConfig state_config,
           context->page * state_config.select_item_codes.length + i;
       update_page(context, state_config, midi);
     }
-    return true;
+    found = true;
   }
 
   // ACTIVE CHANGE
@@ -450,7 +605,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       update_active(context, state_config, midi, true);
       update_values(context, state_config, midi);
     }
-    return true;
+    found = true;
   }
 
   // VALUE CHANGE
@@ -472,7 +627,7 @@ static bool compute_event(Context *context, StateConfig state_config,
         safe_midi_write(midi, code, MIDI_MAX);
       }
     }
-    return true;
+    found = true;
   }
 
   // TAP TEMPO
@@ -481,7 +636,7 @@ static bool compute_event(Context *context, StateConfig state_config,
     if (value > 0) {
       tempo_tap(&context->tempo);
     }
-    return true;
+    found = true;
   }
 
   // OTHER KEYS
@@ -491,7 +646,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       randomize(context, state_config);
       update_values(context, state_config, midi);
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_reset) {
@@ -500,25 +655,24 @@ static bool compute_event(Context *context, StateConfig state_config,
       reset(context);
       update_values(context, state_config, midi);
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_demo) {
     if (value > 0) {
-      log_info((context->demo ? "[%d] Demo OFF" : "[%d] Demo ON"), code);
+      context->auto_random = context->demo = !context->demo;
-      context->demo = !context->demo;
+      log_info((context->demo ? "[%d] Demo ON" : "[%d] Demo OFF"), code);
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_autorand) {
     if (value > 0) {
-      log_info((context->auto_random ? "[%d] Auto Random OFF"
-                                     : "[%d] Auto Random ON"),
-               code);
       context->auto_random = !context->auto_random;
+      log_info("[%d] Auto Random %s", code,
+               context->auto_random ? "ON" : "OFF");
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_autorand_down) {
@@ -528,7 +682,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       }
       log_info("[%d] Auto Random Cycle: %d", code, context->auto_random_cycle);
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_autorand_up) {
@@ -536,7 +690,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       context->auto_random_cycle += 1;
       log_info("[%d] Auto Random Cycle: %d", code, context->auto_random_cycle);
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_tempo_up) {
@@ -544,7 +698,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       tempo_set(&context->tempo, context->tempo.tempo + 1);
       log_info("[%d] Tempo: %f", code, context->tempo);
     }
-    return true;
+    found = true;
   }
 
   if (code == state_config.key_tempo_down) {
@@ -552,9 +706,9 @@ static bool compute_event(Context *context, StateConfig state_config,
       if (context->tempo.tempo > 0) {
         tempo_set(&context->tempo, context->tempo.tempo - 1);
       }
-      log_info("[%d] Tempo: %f", code, context->tempo);
+      log_info("[%d] Tempo: %f", code, context->tempo.tempo);
     }
-    return true;
+    found = true;
   }
 
   // LOAD STATE
@@ -565,7 +719,7 @@ static bool compute_event(Context *context, StateConfig state_config,
       log_info("[%d] Loading state %d", code, i + 1);
       load_from_index_file(context, state_config, i + 1);
     }
-    return true;
+    found = true;
   }
 
   // SAVE STATE
@@ -576,10 +730,10 @@ static bool compute_event(Context *context, StateConfig state_config,
       log_info("[%d] Saving state %d", code, i + 1);
       save_to_index_file(context, state_config, i + 1);
     }
-    return true;
+    found = true;
   }
 
-  return false;
+  return found;
 }
 
 void state_midi_event(Context *context, StateConfig state_config,
@@ -605,16 +759,20 @@ void *state_background_write(void *args) {
   Context *context = process_args->context;
   StateConfig state_config = process_args->state_config;
   MidiDevice *midi = process_args->midi;
+  bool auto_save = process_args->auto_save;
 
   bool beat_active;
   bool last_active;
   bool change;
   bool last_change;
+  bool do_auto_save;
+  bool last_auto_save;
 
   log_info("(state) background writing started");
 
   last_active = false;
   last_change = false;
+  last_auto_save = false;
 
   while (!context->stop) {
     beat_active = tempo_progress(&context->tempo, 1.0) < 0.5;
@@ -640,9 +798,19 @@ void *state_background_write(void *args) {
     }
 
     last_change = change;
+
+    do_auto_save = fmod(context->time, STATE_AUTO_SAVE_SECONDS) <
+                   STATE_AUTO_SAVE_SECONDS * 0.5;
+
+    if (auto_save && do_auto_save && !last_auto_save) {
+      save_to_default_file(context, state_config, false);
+    }
+
+    last_auto_save = do_auto_save;
   }
 
   log_info("(state) background writing stopped by main thread");
+  free(process_args);
   pthread_exit(NULL);
 }
 
@@ -679,5 +847,5 @@ void state_init(Context *context, StateConfig state_config, bool demo,
 }
 
 void state_save(const Context *context, StateConfig state_config) {
-  save_to_default_file(context, state_config);
+  save_to_default_file(context, state_config, true);
 }

src/string.c

@@ -15,7 +15,7 @@ unsigned int string_trim(char *str) {
   start = 0;
   end = strnlen(str, STR_LEN) - 1;
 
-  if (end == 0) {
+  if (end <= 0) {
     return 0;
   }
 
@@ -62,11 +62,19 @@ char *string_replace_at(const char *src, unsigned int from, unsigned int to,
   unsigned long rpl_len;
   char *dst;
 
+  if (to < from) {
+    return "";
+  }
+
   src_len = strnlen(src, STR_LEN * STR_LEN);
   rpl_len = strnlen(rpl, STR_LEN * STR_LEN);
 
   dst = malloc(src_len - (to - from) + rpl_len + 1);
 
+  if (dst == NULL) {
+    return "";
+  }
+
   strlcpy(dst, src, from + 1);
   strlcpy(dst + from, rpl, rpl_len + 1);
   strlcpy(dst + from + rpl_len, src + to, src_len - to + 1);

src/tempo.c

@@ -1,18 +1,18 @@
 #include <math.h>
 #include <string.h>
-#include <sys/time.h>
+#include <time.h>
 
 #include "types.h"
 
 #include "config.h"
 #include "tempo.h"
 
-static long now() {
+static long now_ms() {
-  struct timeval now;
+  struct timespec ts;
-
+  if (clock_gettime(CLOCK_REALTIME, &ts) != 0) {
-  gettimeofday(&now, NULL);
+    return 0;
-
+  }
-  return now.tv_sec * 1000 + now.tv_usec / 1000;
+  return 1000 * ts.tv_sec + ts.tv_nsec / 1e6;
 }
 
 static void reset_tap_chain(Tempo *tempo, long t) {
@@ -93,7 +93,7 @@ static void add_tap_to_chain(Tempo *tempo, long t) {
 void tempo_init(Tempo *tempo, float value) {
   long t;
 
-  t = now();
+  t = now_ms();
 
   reset_tap_chain(tempo, t);
 
@@ -105,7 +105,7 @@ void tempo_set(Tempo *tempo, float value) {
   long t;
   long progress;
 
-  t = now();
+  t = now_ms();
 
   progress = (t - tempo->last_reset) % tempo->beat_length;
 
@@ -118,7 +118,7 @@ void tempo_set(Tempo *tempo, float value) {
 void tempo_tap(Tempo *tempo) {
   long t;
 
-  t = now();
+  t = now_ms();
 
   if (!is_chain_active(*tempo, t)) {
     reset_tap_chain(tempo, t);
@@ -130,7 +130,7 @@ void tempo_tap(Tempo *tempo) {
 double tempo_total(const Tempo *tempo) {
   long t;
 
-  t = now();
+  t = now_ms();
 
   return (double)(t - tempo->last_reset) / (double)tempo->beat_length;
 }

src/timer.c

@@ -1,4 +1,6 @@
-#include <sys/time.h>
+#include <bits/time.h>
+#include <limits.h>
+#include <time.h>
 
 #include "types.h"
 
@@ -7,24 +9,25 @@
 void timer_init(Timer *timer, const unsigned int target) {
   timer->counter = 0;
   timer->target = target;
-
+  clock_gettime(CLOCK_REALTIME, &timer->start);
-  gettimeofday(&timer->start, NULL);
 }
 
 bool timer_inc(Timer *timer) {
   timer->counter += 1;
-  return timer->counter >= timer->target;
+  return timer->counter == UINT_MAX || timer->counter >= timer->target;
 }
 
 double timer_reset(Timer *timer) {
-  struct timeval stop;
+  struct timespec stop;
   double secs;
   double per_secs;
 
-  gettimeofday(&stop, NULL);
+  if (clock_gettime(CLOCK_REALTIME, &stop) != 0) {
+    return 0.0;
+  }
 
-  secs = (double)(stop.tv_usec - timer->start.tv_usec) / 1000000 +
+  secs = (double)(stop.tv_sec - timer->start.tv_sec) +
-         (double)(stop.tv_sec - timer->start.tv_sec);
+         (double)(stop.tv_nsec - timer->start.tv_nsec) / 1e9;
   per_secs = (double)timer->counter / secs;
 
   timer->start = stop;

src/types.h

@@ -50,13 +50,18 @@ typedef struct Parameters {
   unsigned int video_buffers;
   unsigned int video_size;
   bool video_reconnect;
+  char video_fourcc[5];
 #endif /* VIDEO_IN */
   unsigned int internal_size;
   bool load_state;
   bool save_state;
+  bool auto_save;
   bool midi_reconnect;
   bool trace_midi;
   bool trace_fps;
+  unsigned int glfw_backend;
+  unsigned int opengl_major;
+  unsigned int opengl_minor;
 } Parameters;
 
 // file.c
@@ -100,34 +105,34 @@ typedef struct ShaderProgram {
   GLuint frame_buffers[ARRAY_SIZE];
   GLuint fragment_shaders[ARRAY_SIZE];
 
-  GLuint itime_locations[ARRAY_SIZE];
+  GLint itime_locations[ARRAY_SIZE];
-  GLuint itempo_locations[ARRAY_SIZE];
+  GLint itempo_locations[ARRAY_SIZE];
-  GLuint ibeats_locations[ARRAY_SIZE];
+  GLint ibeats_locations[ARRAY_SIZE];
-  GLuint ifps_locations[ARRAY_SIZE];
+  GLint ifps_locations[ARRAY_SIZE];
-  GLuint ires_locations[ARRAY_SIZE];
+  GLint ires_locations[ARRAY_SIZE];
-  GLuint itexres_locations[ARRAY_SIZE];
+  GLint itexres_locations[ARRAY_SIZE];
-  GLuint iinres_locations[ARRAY_SIZE];
+  GLint iinres_locations[ARRAY_SIZE];
-  GLuint iinfmt_locations[ARRAY_SIZE];
+  GLint iinfmt_locations[ARRAY_SIZE];
-  GLuint iinfps_locations[ARRAY_SIZE];
+  GLint iinfps_locations[ARRAY_SIZE];
-  GLuint idemo_locations[ARRAY_SIZE];
+  GLint idemo_locations[ARRAY_SIZE];
-  GLuint iautorand_locations[ARRAY_SIZE];
+  GLint iautorand_locations[ARRAY_SIZE];
-  GLuint iautorandcycle_locations[ARRAY_SIZE];
+  GLint iautorandcycle_locations[ARRAY_SIZE];
-  GLuint iseed_locations[ARRAY_SIZE];
+  GLint iseed_locations[ARRAY_SIZE];
-  GLuint istate_locations[ARRAY_SIZE];
+  GLint istate_locations[ARRAY_SIZE];
-  GLuint ipage_locations[ARRAY_SIZE];
+  GLint ipage_locations[ARRAY_SIZE];
-  GLuint iselected_locations[ARRAY_SIZE];
+  GLint iselected_locations[ARRAY_SIZE];
-  GLuint iactive_locations[ARRAY_SIZE];
+  GLint iactive_locations[ARRAY_SIZE];
 
   UintArray midi_lengths;
-  GLuint igroup_locations[ARRAY_SIZE];
+  GLint igroup_locations[ARRAY_SIZE];
 
-  GLuint vpos_locations[ARRAY_SIZE];
+  GLint vpos_locations[ARRAY_SIZE];
 
-  GLuint textures_locations[ARRAY_SIZE];
+  GLint textures_locations[ARRAY_SIZE];
 
   unsigned int sub_type_count;
   unsigned int sub_variant_count;
-  GLuint sub_locations[ARRAY_SIZE];
+  GLint sub_locations[ARRAY_SIZE];
 
   unsigned int active_count;
 
@@ -232,7 +237,7 @@ typedef struct MidiBackgroundListenArgs {
   MidiDevice *device;
   Context *context;
   void (*event_callback)(unsigned char code, unsigned char value);
-} MidiBackgroundReadArgs;
+} MidiBackgroundListenArgs;
 
 // state.c
 
@@ -250,6 +255,7 @@ typedef struct StateConfig {
   UintArray codes;
   UintArray fader_codes;
   UintArray values_offsets;
+  UintArray random_ignored;
 
   unsigned int value_count;
 
@@ -274,12 +280,13 @@ typedef struct StateBackgroundWriteArgs {
   Context *context;
   StateConfig state_config;
   MidiDevice *midi;
+  bool auto_save;
 } StateBackgroundWriteArgs;
 
 // timer.c
 
 typedef struct Timer {
-  struct timeval start;
+  struct timespec start;
   unsigned int counter;
   unsigned int target;
 } Timer;

src/video.c

@@ -16,7 +16,6 @@
 #include "timer.h"
 #include "video.h"
 
-static const unsigned int pixel_format = V4L2_PIX_FMT_YUYV;
 static const enum v4l2_buf_type buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 
 static void ioctl_error(VideoCapture *video_capture, const char *operation,
@@ -70,14 +69,31 @@ static void ioctl_error(VideoCapture *video_capture, const char *operation,
   video_capture->error = true;
 }
 
-static void open_device(VideoCapture *video_capture, const char *name) {
+static void fourcc_to_string(unsigned int fourcc, char *str) {
+  str[0] = (char)(fourcc & 0xFF);
+  str[1] = (char)((fourcc >> 8) & 0xFF);
+  str[2] = (char)((fourcc >> 16) & 0xFF);
+  str[3] = (char)((fourcc >> 24) & 0xFF);
+  str[4] = '\0';
+}
+
+static int string_to_fourcc(const char *str) {
+  return (unsigned int)str[0] | ((unsigned int)str[1] << 8) |
+         ((unsigned int)str[2] << 16) | ((unsigned int)str[3] << 24);
+}
+
+static void open_device(VideoCapture *video_capture, const char *name,
+                        bool log_error) {
   strlcpy(video_capture->name, name, STR_LEN);
   video_capture->error = false;
   video_capture->fd = -1;
+  video_capture->buf_count = 0;
 
   video_capture->fd = open(name, O_RDWR | O_NONBLOCK);
   if (video_capture->fd == -1) {
-    log_warn("(%s) Cannot open device", name);
+    if (log_error) {
+      log_warn("(%s) Cannot open device", name);
+    }
     video_capture->error = true;
   }
 }
@@ -108,7 +124,8 @@ static bool check_caps(VideoCapture *video_capture) {
 }
 
 static bool get_available_sizes(VideoCapture *video_capture,
-                                unsigned int preferred_height) {
+                                unsigned int preferred_height,
+                                unsigned int pixel_format) {
   struct v4l2_frmsizeenum fmt_enum;
   unsigned int index;
   bool found = false;
@@ -161,8 +178,9 @@ static bool get_available_sizes(VideoCapture *video_capture,
   return true;
 }
 
-static bool set_format(VideoCapture *video_capture) {
+static bool set_format(VideoCapture *video_capture, unsigned int pixel_format) {
   struct v4l2_format fmt;
+  char fourcc[STR_LEN];
 
   memset(&fmt, 0, sizeof(fmt));
 
@@ -183,9 +201,9 @@ static bool set_format(VideoCapture *video_capture) {
   video_capture->pixelformat = fmt.fmt.pix.pixelformat;
   video_capture->bytesperline = fmt.fmt.pix.bytesperline;
 
-  log_info("(%s) Format fourcc:  %c%c%c%c", video_capture->name,
+  fourcc_to_string(fmt.fmt.pix.pixelformat, fourcc);
-           fmt.fmt.pix.pixelformat, fmt.fmt.pix.pixelformat >> 8,
+
-           fmt.fmt.pix.pixelformat >> 16, fmt.fmt.pix.pixelformat >> 24);
+  log_info("(%s) Format fourcc:  %s", video_capture->name, fourcc);
   log_info("(%s) Resolution:  %dx%d", video_capture->name, fmt.fmt.pix.width,
            fmt.fmt.pix.height);
 
@@ -211,6 +229,9 @@ static bool request_buffers(VideoCapture *video_capture,
   log_info("(%s) V4L2 Buffer Count:  %d", video_capture->name, reqbuf.count);
 
   video_capture->buf_count = reqbuf.count;
+  for (unsigned int i = 0; i < reqbuf.count; i++) {
+    video_capture->exp_fd[i] = -1;
+  }
 
   return true;
 }
@@ -262,7 +283,7 @@ static bool open_stream(VideoCapture *video_capture) {
   return true;
 }
 
-static void create_image_buffer(const VideoCapture *video_capture,
+static bool create_image_buffer(VideoCapture *video_capture,
                                 struct v4l2_buffer *buf, unsigned int index) {
   memset(buf, 0, sizeof(*buf));
 
@@ -270,15 +291,24 @@ static void create_image_buffer(const VideoCapture *video_capture,
   buf->memory = V4L2_MEMORY_MMAP;
   buf->index = index;
 
-  ioctl(video_capture->fd, VIDIOC_QBUF, buf);
+  if (ioctl(video_capture->fd, VIDIOC_QBUF, buf) == -1) {
+    ioctl_error(video_capture, "VIDIOC_QBUF", "Could not enqueue buffer");
+    return false;
+  }
+
+  return true;
 }
 
-static void create_image_buffers(VideoCapture *video_capture) {
+static bool create_image_buffers(VideoCapture *video_capture) {
   unsigned int i;
 
   for (i = 0; i < video_capture->buf_count; i++) {
-    create_image_buffer(video_capture, &video_capture->buf[i], i);
+    if (!create_image_buffer(video_capture, &video_capture->buf[i], i)) {
+      return false;
+    }
   }
+
+  return true;
 }
 
 static void close_stream(const VideoCapture *video_capture) {
@@ -290,11 +320,15 @@ static unsigned int read_video(VideoCapture *video_capture) {
 
   if (ioctl(video_capture->fd, VIDIOC_DQBUF,
             &video_capture->buf[video_capture->buf_index]) != -1) {
-    ioctl(video_capture->fd, VIDIOC_QBUF,
+    if (ioctl(video_capture->fd, VIDIOC_QBUF,
-          &video_capture->buf[video_capture->buf_index]);
+              &video_capture->buf[video_capture->buf_index]) == -1) {
-    video_capture->buf_index =
+      video_capture->error = true;
-        (video_capture->buf_index + 1) % video_capture->buf_count;
+      return false;
-    return true;
+    } else {
+      video_capture->buf_index =
+          (video_capture->buf_index + 1) % video_capture->buf_count;
+      return true;
+    }
   }
 
   if (ioctl(video_capture->fd, VIDIOC_QUERYCAP, &cap) == -1) {
@@ -305,38 +339,56 @@ static unsigned int read_video(VideoCapture *video_capture) {
 }
 
 void video_init(VideoCapture *video_capture, const char *name,
-                unsigned int preferred_height, unsigned int buffer_count) {
+                unsigned int preferred_height, unsigned int buffer_count,
-  open_device(video_capture, name);
+                const char *video_fourcc, bool log_error) {
+  open_device(video_capture, name, log_error);
 
   if (video_capture->error) {
     return;
   }
 
   if (!check_caps(video_capture)) {
+    video_capture->error = true;
+    video_free(video_capture);
     return;
   }
 
-  if (!get_available_sizes(video_capture, preferred_height)) {
+  if (!get_available_sizes(video_capture, preferred_height,
+                           string_to_fourcc(video_fourcc))) {
+    video_capture->error = true;
+    video_free(video_capture);
     return;
   }
 
-  if (!set_format(video_capture)) {
+  if (!set_format(video_capture, string_to_fourcc(video_fourcc))) {
+    video_capture->error = true;
+    video_free(video_capture);
     return;
   }
 
   if (!request_buffers(video_capture, buffer_count)) {
+    video_capture->error = true;
+    video_free(video_capture);
     return;
   }
 
   if (!export_buffers(video_capture)) {
+    video_capture->error = true;
+    video_free(video_capture);
     return;
   }
 
   if (!open_stream(video_capture)) {
+    video_capture->error = true;
+    video_free(video_capture);
     return;
   }
 
-  create_image_buffers(video_capture);
+  if (!create_image_buffers(video_capture)) {
+    video_capture->error = true;
+    video_free(video_capture);
+    return;
+  }
 }
 
 void *video_background_read(void *args) {
@@ -376,20 +428,24 @@ void *video_background_read(void *args) {
              video_capture->name);
     video_capture->disconnected = true;
     context->input_formats[input_index] = 0;
+    context->input_resolutions[input_index][0] = 0;
+    context->input_resolutions[input_index][1] = 0;
   }
+  free(process_args);
   pthread_exit(NULL);
 }
 
 void video_free(const VideoCapture *video_capture) {
   unsigned int i;
 
-  close_stream(video_capture);
-
   for (i = 0; i < video_capture->buf_count; i++) {
-    close(video_capture->exp_fd[i]);
+    if (video_capture->exp_fd[i] != -1) {
+      close(video_capture->exp_fd[i]);
+    }
   }
 
   if (video_capture->fd != -1) {
+    close_stream(video_capture);
     close(video_capture->fd);
   }
 }

src/video.h

@@ -6,7 +6,8 @@
 #ifdef VIDEO_IN
 
 void video_init(VideoCapture *video_capture, const char *name,
-                unsigned int preferred_height, unsigned int buffer_count);
+                unsigned int preferred_height, unsigned int buffer_count,
+                const char *video_fourcc, bool log_error);
 
 void *video_background_read(void *args);
 

src/window.c

@@ -7,7 +7,8 @@
 
 #include "window.h"
 
-static void init_glfw(void (*error_callback)(int, const char *)) {
+static void init_glfw(void (*error_callback)(int, const char *),
+                      const unsigned int backend) {
   log_info("[GLFW] Initializing...");
 
   // set errors handler
@@ -16,6 +17,30 @@ static void init_glfw(void (*error_callback)(int, const char *)) {
   // print current GLFW version
   log_info("[GLFW] %s", glfwGetVersionString());
 
+  switch (backend) {
+#ifdef GLFW_PLATFORM
+  case GLFW_BACKEND_X11:
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_X11);
+    log_info("[GLFW] platform: X11");
+    break;
+  case GLFW_BACKEND_WAYLAND:
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_WAYLAND);
+    log_info("[GLFW] platform: Wayland");
+    break;
+  case GLFW_BACKEND_COCOA:
+    glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_COCOA);
+    log_info("[GLFW] platform: Cocoa");
+    break;
+  case GLFW_BACKEND_WIN32:
+    glfwInitHint(GLFW_PLATFORM, GLFW_BACKEND_WIN32);
+    log_info("[GLFW] platform: Win32");
+    break;
+#endif /* GLFW_PLATFORM */
+  default:
+    log_info("[GLFW] platform: Any");
+    break;
+  }
+
   // init GLFW
   if (!glfwInit()) {
     log_error("[GLFW] Initialization failed");
@@ -44,7 +69,9 @@ static GLFWmonitor *get_monitor(unsigned char monitor_index) {
 }
 
 static GLFWwindow *
-create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
+create_window(GLFWmonitor *monitor, const char *title,
+              const unsigned int opengl_major, const unsigned int opengl_minor,
+              Window *shared_context,
               void (*key_callback)(Window *, int, int, int, int)) {
   GLFWwindow *window;
 
@@ -57,12 +84,14 @@ create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
   glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_FALSE);
 
   // Context related hints
-  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, opengl_major);
-  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, opengl_minor);
 #ifdef GL_DEBUG
   glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
 #endif
-  glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+  if (opengl_major > 4 || (opengl_major == 3 && opengl_minor >= 2)) {
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+  }
 
   // create fullscreen window in selected monitor
   window = glfwCreateWindow(1, 1, title, monitor, shared_context);
@@ -86,8 +115,9 @@ create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
 
 static void use_window(GLFWwindow *window) { glfwMakeContextCurrent(window); }
 
-void window_startup(void (*error_callback)(int, const char *)) {
+void window_startup(void (*error_callback)(int, const char *),
-  init_glfw(error_callback);
+                    const unsigned int backend) {
+  init_glfw(error_callback, backend);
 }
 
 void window_terminate() {
@@ -96,17 +126,21 @@ void window_terminate() {
 }
 
 Window *window_init(const char *title, unsigned char monitor_index,
-                    bool windowed, Window *shared_context,
+                    bool windowed, const unsigned int opengl_major,
+                    const unsigned int opengl_minor, Window *shared_context,
                     void (*key_callback)(Window *, int, int, int, int)) {
   GLFWwindow *window;
   GLFWmonitor *monitor;
 
   monitor = windowed ? NULL : get_monitor(monitor_index);
 
-  window = create_window(monitor, title, shared_context, key_callback);
+  window = create_window(monitor, title, opengl_major, opengl_minor,
+                         shared_context, key_callback);
 
   use_window(window);
 
+  glfwSwapInterval(0);
+
   return window;
 }
 
@@ -131,9 +165,10 @@ void window_use(Window *window, Context *context) {
   glfwGetFramebufferSize(window, &width, &height);
   context->resolution[0] = width;
   context->resolution[1] = height;
-  context->tex_resolution[0] =
+  if (height > 0) {
-      (int)(context->tex_resolution[1] * context->resolution[0] /
+    context->tex_resolution[0] =
-            context->resolution[1]);
+        (int)(context->tex_resolution[1] * width / height);
+  }
 }
 
 void window_close(Window *window) {

src/window.h

@@ -3,12 +3,13 @@
 #ifndef WINDOW_H
 #define WINDOW_H
 
-void window_startup(void (*error_callback)(int, const char *));
+void window_startup(void (*error_callback)(int, const char *), const unsigned int backend);
 
 void window_terminate();
 
 Window *window_init(const char *title, unsigned char monitor_index,
-                    bool windowed, Window *shared_context,
+                    bool windowed,  const unsigned int opengl_major,
+                    const unsigned int opengl_minor, Window *shared_context,
                     void (*key_callback)(Window *, int, int, int, int));
 
 void window_update_title(Window *window, const char *title);