forge (steel) v1.1.0

docs: add cloc
refactor: specify number of video input buffers
2026-05-15 00:20:29 +02:00 · 2026-05-15 00:18:06 +02:00 · 2026-05-15 00:09:51 +02:00 · 2026-05-14 22:52:48 +02:00 · 2026-05-14 22:52:08 +02:00 · 2026-05-14 22:27:39 +02:00
36 changed files with 1318 additions and 1037 deletions
@@ -15,7 +15,7 @@ on:
      - 'Makefile.am'

 env:
-  GCC_ARGS: src/*.c src/*.h -lglfw -lGL -lm -lasound -Iinclude hashmap.c/hashmap.c log.c/src/log.c -DGLFW_INCLUDE_NONE -DGLFW_NATIVE_INCLUDE_NONE
+  GCC_ARGS: src/*.c src/*.h -lglfw -lGL -lm -lasound -Wno-format-truncation -Iinclude hashmap.c/hashmap.c log.c/src/log.c -DGLFW_INCLUDE_NONE -DGLFW_NATIVE_INCLUDE_NONE
  GCC_ARGS_VIDEO: -DGLFW_EXPOSE_NATIVE_EGL  -DVIDEO_IN
  PACKAGES: "libglfw3-dev libgl-dev libasound2-dev"
  PACKAGES_VIDEO: "libv4l-dev"
@@ -28,3 +28,4 @@ conftest.*
 error.glsl
 draft/
 *.gch
+*.out
@@ -20,7 +20,7 @@ release-arch  make arch-linux release package
 # make full build
 make -f Makefile.dev release-1.0.0
 # push release
-git push origin master --tags
+git push origin main --tags
 # create release from tag on github
 # attach .tar.gz to the github release
 make -f Makefile.dev release-arch
@@ -126,15 +126,14 @@ make -f Makefile.dev release-arch
  - [x] Monitor improvements
  - [ ] Ignore some values in auto random
  - [x] build without video in
-  - [ ] Auto discover video devices
  - [ ] Update README monitor/keymap
-  - [ ] Auto reconnect midi input
-  - [ ] Auto reconnect video device
-  - [ ] Key codes as inputs
+  - [x] Auto reconnect midi input
+  - [x] Auto reconnect video device
+  - [x] Key codes as inputs
  - [ ] Mouse position and scroll as inputs
  - [ ] Joystick as input
  - [ ] Record show as text files
  - [ ] Play from record text file
 - [ ] Fixes
  - [ ] Try to write NanoKontrol config
-  - [x] Investigate video device fps loss (bad unregister ?)
+  - [x] Investigate video device fps loss (bad unregister ?)
@@ -1,9 +1,9 @@
 AUTOMAKE_OPTIONS = foreign subdir-objects -Wall
 bin_PROGRAMS = forge
-forge_SOURCES = src/args.c src/arr.c src/config_file.c src/file.c src/forge.c src/main.c src/midi.c src/project.c src/rand.c src/shaders.c src/shared.c src/state.c src/string.c src/tempo.c src/timer.c src/video.c src/window.c $(top_srcdir)/include/glad/gl.h $(top_srcdir)/include/glad/egl.h $(top_srcdir)/hashmap.c/hashmap.c $(top_srcdir)/log.c/src/log.c
+forge_SOURCES = src/args.c src/arr.c src/config_file.c src/file.c src/forge.c src/main.c src/midi.c src/project.c src/rand.c src/shaders.c src/state.c src/string.c src/tempo.c src/timer.c src/video.c src/window.c $(top_srcdir)/include/glad/gl.h $(top_srcdir)/include/glad/egl.h $(top_srcdir)/hashmap.c/hashmap.c $(top_srcdir)/log.c/src/log.c
 forge_CFLAGS = -Ofast -march=native -flto -funroll-loops -fprefetch-loop-arrays -fno-exceptions -fopenmp -I$(top_srcdir)/include -DGLFW_INCLUDE_NONE -DGLFW_EXPOSE_NATIVE_EGL -DGLFW_NATIVE_INCLUDE_NONE -DLOG_USE_COLOR -DVIDEO_IN -DDATADIR=\"$(datadir)/$(PACKAGE)\"
 forge_LDADD = -lm -lGL -lglfw -lasound
-include_HEADERS = src/args.h src/arr.h src/config.h src/config_file.h src/constants.h src/file.h src/forge.h src/main.h src/midi.h src/project.h src/rand.h src/shaders.h src/shared.h src/state.h src/string.h src/tempo.h src/timer.h src/types.h src/video.h src/window.h $(top_srcdir)/include/glad/gl.h $(top_srcdir)/include/glad/egl.h $(top_srcdir)/include/linmath.h $(top_srcdir)/include/hashmap.h $(top_srcdir)/include/log.h
+include_HEADERS = src/args.h src/arr.h src/config.h src/config_file.h src/constants.h src/file.h src/forge.h src/main.h src/midi.h src/project.h src/rand.h src/shaders.h src/state.h src/string.h src/tempo.h src/timer.h src/types.h src/video.h src/window.h $(top_srcdir)/include/glad/gl.h $(top_srcdir)/include/glad/egl.h $(top_srcdir)/include/linmath.h $(top_srcdir)/include/hashmap.h $(top_srcdir)/include/log.h

 EXTRA_DIST = default/forge_project.cfg default/frag1.glsl default/frag10.glsl default/frag2.glsl default/frag3.glsl default/frag4.glsl default/frag5.glsl default/frag6.glsl default/frag7.glsl default/frag8.glsl default/frag9.glsl default/inc_cp437.glsl default/inc_debug.glsl default/inc_functions.glsl default/inc_fx.glsl default/inc_magic.glsl default/inc_rand.glsl default/inc_res.glsl default/inc_sentences.glsl default/inc_src.glsl default/inc_template.glsl default/inc_time.glsl default/inc_yuyv.glsl
 confdir = $(prefix)/share/$(PACKAGE)
@@ -1,6 +1,6 @@
 TARGET ?= forge
 INSTALL_DIR ?= $(HOME)/.local/bin
-TEST_ARGS ?= --video-in=/dev/video0 --video-in=/dev/video1 --video-in=/dev/video2 --video-in=/dev/video3 --video-in=/dev/video4 --video-in=/dev/video5 --video-in=/dev/video6 --video-in=/dev/video7 --video-in=/dev/video8 --video-in=/dev/video9
+RUN_ARGS ?= --help
 SHELL := /bin/bash

 .PHONY: build
@@ -49,11 +49,7 @@ format:

 .PHONY: run
 run: build
-	./build/$(TARGET) $(TEST_ARGS) --monitor-only --internal-size=480 --video-size=240 --hot-reload
-
-.PHONY: demo
-demo: build
-	./build/$(TARGET) $(TEST_ARGS) --demo
+	./build/$(TARGET) $(RUN_ARGS)

 .PHONY: sample
 sample: build
@@ -64,7 +60,7 @@ valgrind: build
 	valgrind \
 		--show-realloc-size-zero=no \
 		--undef-value-errors=no \
-		./build/$(TARGET) $(TEST_ARGS)
+		./build/$(TARGET) $(RUN_ARGS)

 .PHONY: clean-release
 clean-release:
@@ -82,7 +78,7 @@ test-release: clean clean-release

 .PHONY: release-%
 release-%: clean clean-release
-	git pull origin master
+	git pull origin main
 	sed -i -E "s/[0-9]+\\.[0-9]+\\.[0-9]+/$*/g" configure.ac
 	aclocal
 	autoconf
@@ -95,8 +91,8 @@ release-%: clean clean-release
 	sha256sum build/forge-steel-$*.tar.gz | cut -d' ' -f1 | xargs -I{} sed -i -E "s/sha256sums=\\('.*'\\)/sha256sums=\\('{}'\\)/g" PKGBUILD
 	git add configure.ac PKGBUILD
 	git commit -am "forge (steel) v$*"
-	git tag v$* -m "forge (steel) v$*"
-	@echo "Push release: git push origin master --tags"
+	git tag v$* -m "FORGE steel-$*"
+	@echo "Push release: git push origin main --tags"
 	@echo "Rollback release: git reset HEAD~1 --hard && git tag -d v$*"


@@ -1,12 +1,12 @@
 pkgname=forge-steel
-pkgver=1.0.2
+pkgver=1.1.0
 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://github.com/klemek/forge-steel"
-source=("${pkgname}-steel-${pkgver}.tar.gz::https://git.klemek.fr/klemek/forge-steel/releases/archive/v${pkgver}/${pkgname}-${pkgver}.tar.gz")
-sha256sums=('53d47f1099556597bf4d9e09d9874e465aad77b3aaa51b3259a1fb955e774f83')
+url="https://git.klemek.fr/klemek/forge-steel"
+source=("${pkgname}-steel-${pkgver}.tar.gz::https://git.klemek.fr/klemek/forge-steel/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.gz")
+sha256sums=('794fb0f170cff19872acfba8a556e2a08c55a78e497ac0b330eca6db65343529')
 srcdir=build
 backup=("usr/share/${pkgname}")

@@ -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)
+[![](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)

 <!-- omit from toc -->
 # F.O.R.G.E. (Steel)
@@ -119,7 +119,7 @@ Here's a quick rundown of the process:

 ### From release

-See [Releases](https://github.com/klemek/forge-steel/releases)
+See [Releases](https://git.klemek.fr/klemek/forge-steel/releases)

 ```shell
 tar xvzf forge-steel-x.y.z.tar.gz
@@ -132,7 +132,7 @@ make install
 ### From repository (PKGBUILD)

 ```shell
-git clone --recursive https://github.com/klemek/forge-steel
+git clone --recursive https://git.klemek.fr/klemek/forge-steel
 cd forge
 makepkg -si
 ```
@@ -141,7 +141,7 @@ makepkg -si
 ### From repository (dev version)

 ```shell
-git clone --recursive https://github.com/klemek/forge-steel
+git clone --recursive https://git.klemek.fr/klemek/forge-steel
 cd forge
 aclocal
 autoconf
@@ -174,9 +174,9 @@ These are configurable in the [`forge_project.cfg`](#forge_projectcfg).
 ### CLI arguments

 ```txt
-forge steel-dev
+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] [-vi=FILE] [-vs=SIZE] [-vr / -nvr] [-is=SIZE] [-ls / -nls] [-ss / -nss] [-tm] [-tf]
+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.

@@ -196,6 +196,7 @@ options:
  -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
@@ -204,6 +205,8 @@ options:
  -nls, --no-load-state       do not load saved state
  -ss, --save-state           save state (default)
  -nss, --no-save-state       do not save state
+  -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
 ```
@@ -280,16 +283,28 @@ We will not dig down all the variables here but feel free to read either:
 * [sample/forge_project.cfg](./sample/forge_project.cfg) (beginner oriented)
 * [default/forge_project.cfg](./default/forge_project.cfg) (more complete)

-#### Midi groups
+#### Input codes

-FORGE allows you to send the midi data in the form of groups.
+Each input code can be either a midi event or a key code.
+
+* 0 - 999 -> midi event
+* Keyboard modifiers are encoded like this:
+  * 1000 -> keyboard event
+  * 10000 -> shift
+  * 100000 -> control
+  * 1000000 -> alt
+  * (This means 111082 is control+alt+R)
+
+#### Input groups
+
+FORGE allows you to send the midi/keyboard data in the form of groups.

 Each group has the following properties:

-* A number of layers with `MIDI_X_ACTIVE_COUNT` (default: `1`)
-* Each midi code controlling how to change the active layer with `MIDI_X_ACTIVE_Y`
-* A number of codes with `MIDI_X_COUNT`
-* Each midi code controlling the active layer with `MIDI_X_Y` (as a `vec3`: `_X` / `_Y` / `_Z`)
+* A number of layers with `GROUP_X_ACTIVE_COUNT` (default: `1`)
+* Each midi/keyboard code controlling how to change the active layer with `GROUP_X_ACTIVE_Y`
+* A number of codes with `GROUP_X_COUNT`
+* Each midi/keyboard code controlling the active layer with `GROUP_X_Y` (as a `vec3`: `_X` / `_Y` / `_Z`)

 #### States

@@ -297,9 +312,9 @@ FORGE allows to define a "state" to a fragment shader.

 This combines several parameters:

-* `SELECT_PAGE_COUNT` (default: `1`) + `SELECT_PAGE_X`: define midi codes for pages of item.
-* `SELECT_ITEM_COUNT` + `SELECT_ITEM_X`: define midi codes for items per page.
-* `SELECT_FRAG_X`: define midi codes to "select" a fragment shader.
+* `SELECT_PAGE_COUNT` (default: `1`) + `SELECT_PAGE_X`: define midi/keyboard codes for pages of item.
+* `SELECT_ITEM_COUNT` + `SELECT_ITEM_X`: define midi/keyboard codes for items per page.
+* `SELECT_FRAG_X`: define midi/keyboard codes to "select" a fragment shader.

 The selected fragment shader will have its state updated with either:

@@ -340,8 +355,8 @@ uniform float iTime; // the current time
 uniform sampler2D iTex0; // texture 1 (0-based)
 uniform sampler2D iTex9; // texture 10
 uniform int iSeed1;
-uniform vec3 iMidi2_3[7]; // midi group 2, layer 3, size 7
-uniform vec3 iMidi3_1[2];
+uniform vec3 iGroup2_3[7]; // midi group 2, layer 3, size 7
+uniform vec3 iGroup3_1[2];
 ```

 #### Working with `#include`
@@ -457,11 +472,11 @@ FORGE (steel) describe the linux version.

 Verify you have the correct [requirements](#requirements) installed.

-Then if you continue to have problems, you can [open an issue](https://github.com/klemek/forge-steel/issues).
+Then if you continue to have problems, you can [open an issue](https://git.klemek.fr/klemek/forge-steel/issues).

 ### I didn't understand everything about your tutorial

-Please [open an issue](https://github.com/klemek/forge-steel/issues) describing what your having trouble with,
+Please [open an issue](https://git.klemek.fr/klemek/forge-steel/issues) describing what your having trouble with,
 I'll try to answer and update the README.

 ### My nanoKontrol2 is acting strange
@@ -472,7 +487,7 @@ Use the [KORG KONTROL Editor](https://www.korg.com/us/support/download/software/

 ### How do I report a bug?

-You're free to open a new issue in the [Issues page](https://github.com/klemek/forge-steel/issues).
+You're free to open a new issue in the [Issues page](https://git.klemek.fr/klemek/forge-steel/issues).

 Don't forget to add all information available to your bug (version, operating system, etc.).

@@ -2,4 +2,6 @@
 -DGLFW_INCLUDE_NONE
 -DGLFW_EXPOSE_NATIVE_EGL
 -DGLFW_NATIVE_INCLUDE_NONE
-DVIDEO_IN
+-DVIDEO_IN
+-DEGL_DEBUG
+-DGL_DEBUG
@@ -1,4 +1,4 @@
-AC_INIT([forge], [steel-1.0.2], [klemek.dev@proton.me])
+AC_INIT([forge], [steel-1.1.0], [klemek.dev@proton.me])
 AM_INIT_AUTOMAKE
 AC_PROG_CC

@@ -22,6 +22,7 @@ AC_CHECK_HEADERS([math.h])
 AC_CHECK_HEADERS([string.h])
 AC_CHECK_HEADERS([time.h])
 AC_CHECK_HEADERS([unistd.h])
+AC_CHECK_HEADERS([pthread.h])

 AC_CHECK_HEADERS([linux/videodev2.h])

@@ -6,7 +6,7 @@
 # (shaders, video devices, textures, midi inputs, etc.)
 # Every number based constant will be "one-based" (1,2,3,etc.)
 # To read more, go to
-# https://github.com/klemek/forge-steel
+# https://git.klemek.fr/klemek/forge-steel


 # ================
@@ -24,7 +24,7 @@
 UNIFORM_TIME=iTime
 # Current tempo
 UNIFORM_TEMPO=iTempo
-# Current total beats 
+# Current total beats
 UNIFORM_BEATS=iBeats

 # --- uniform int ---
@@ -51,8 +51,6 @@ UNIFORM_STATE_PREFIX=iState
 UNIFORM_ACTIVE_PREFIX=iActive
 # Input X format raw integer value
 UNIFORM_IN_FORMAT_PREFIX=iInputFormat
-# Input X should use swap texture or not (0/1)
-UNIFORM_IN_SWAP_PREFIX=iInputSwap

 # --- uniform vec2 ---

@@ -66,8 +64,8 @@ UNIFORM_IN_RESOLUTION_PREFIX=iInputResolution
 # --- uniform vec3 ---

 # Midi group X layer Y (beware of group size)
-# Injected as "iMidiX_Y[Z]"
-UNIFORM_MIDI_PREFIX=iMidi
+# Injected as "iGroupX_Y[Z]"
+UNIFORM_GROUP_PREFIX=iGroup

 # --- uniform sampler2D ---

@@ -106,9 +104,6 @@ IN_COUNT=2
 # To which texture will be bound video device X
 IN_1_OUT=1
 IN_2_OUT=2
-# To which texture will be bound swap buffers (for double-buffering)
-IN_1_SWAP_OUT=3
-IN_2_SWAP_OUT=4

 # === FRAGMENT SHADERS
 # Fragment shaders will be read from the CLI directory as "fragX.glsl"
@@ -134,10 +129,17 @@ FRAG_OUTPUT=9
 FRAG_MONITOR=10


-# ========
-# MIDI I/O
-# ========
-
+# ==========
+# I/O Inputs
+# ==========
+# Each code either maps to a midi event or a key code
+# 0 - 999 -> midi event
+# Keyboard modifiers are encoded like this:
+# 1000 -> keyboard event
+# 10000 -> shift
+# 100000 -> control
+# 1000000 -> alt
+# This means 111082 is control+alt+R

 # The recognized ALSA name of the midi device
 MIDI_HW=hw:CARD=nanoKONTROL2
@@ -193,8 +195,8 @@ SELECT_ITEM_3=42
 SELECT_ITEM_4=41
 SELECT_ITEM_5=45

-# === MIDI INPUT STATES
-# Midi inputs will control FORGE's state as follows
+# === GROUP INPUT STATES
+# Inputs will control FORGE's state as follows
 # X groups of Y layers sized Z
 # You can manipulate only 1 layer at a time
 # Every layer of every groups will be send as uniforms
@@ -202,72 +204,72 @@ SELECT_ITEM_5=45
 # with the same codes for nice display

 # Total number of groups
-MIDI_COUNT=3
+GROUP_COUNT=3

 # Total number of layers of group 1
-MIDI_1_ACTIVE_COUNT=2
+GROUP_1_ACTIVE_COUNT=2
 # Midi codes to change layer of group 1
-MIDI_1_ACTIVE_1=32
-MIDI_1_ACTIVE_2=64
+GROUP_1_ACTIVE_1=32
+GROUP_1_ACTIVE_2=64

 # Size of group 1
-MIDI_1_COUNT=6
+GROUP_1_COUNT=6
 # Every code of active layer manipulation of group 1
-MIDI_1_1_X=33
-MIDI_1_1_Y=49
-MIDI_1_1_Z=65
-MIDI_1_2_X=1
-MIDI_1_2_Y=17
-MIDI_1_2_Z=
-MIDI_1_3_X=34
-MIDI_1_3_Y=50
-MIDI_1_3_Z=66
-MIDI_1_4_X=2
-MIDI_1_4_Y=18
-MIDI_1_4_Z=
-MIDI_1_5_X=35
-MIDI_1_5_Y=51
-MIDI_1_5_Z=67
-MIDI_1_6_X=3
-MIDI_1_6_Y=19
-MIDI_1_6_Z=
+GROUP_1_1_X=33
+GROUP_1_1_Y=49
+GROUP_1_1_Z=65
+GROUP_1_2_X=1
+GROUP_1_2_Y=17
+GROUP_1_2_Z=
+GROUP_1_3_X=34
+GROUP_1_3_Y=50
+GROUP_1_3_Z=66
+GROUP_1_4_X=2
+GROUP_1_4_Y=18
+GROUP_1_4_Z=
+GROUP_1_5_X=35
+GROUP_1_5_Y=51
+GROUP_1_5_Z=67
+GROUP_1_6_X=3
+GROUP_1_6_Y=19
+GROUP_1_6_Z=

 # Same for group 2
-MIDI_2_ACTIVE_COUNT=3
-MIDI_2_ACTIVE_1=36
-MIDI_2_ACTIVE_2=68
-MIDI_2_ACTIVE_3=52
-MIDI_2_COUNT=7
-MIDI_2_1_X=37
-MIDI_2_1_Y=53
-MIDI_2_1_Z=69
-MIDI_2_2_X=5
-MIDI_2_2_Y=21
-MIDI_2_2_Z=
-MIDI_2_3_X=38
-MIDI_2_3_Y=54
-MIDI_2_3_Z=70
-MIDI_2_4_X=6
-MIDI_2_4_Y=22
-MIDI_2_4_Z=
-MIDI_2_5_X=39
-MIDI_2_5_Y=55
-MIDI_2_5_Z=71
-MIDI_2_6_X=7
-MIDI_2_6_Y=23
-MIDI_2_6_Z=
-MIDI_2_7_X=4
-MIDI_2_7_Y=20
-MIDI_2_7_Z=59
+GROUP_2_ACTIVE_COUNT=3
+GROUP_2_ACTIVE_1=36
+GROUP_2_ACTIVE_2=68
+GROUP_2_ACTIVE_3=52
+GROUP_2_COUNT=7
+GROUP_2_1_X=37
+GROUP_2_1_Y=53
+GROUP_2_1_Z=69
+GROUP_2_2_X=5
+GROUP_2_2_Y=21
+GROUP_2_2_Z=
+GROUP_2_3_X=38
+GROUP_2_3_Y=54
+GROUP_2_3_Z=70
+GROUP_2_4_X=6
+GROUP_2_4_Y=22
+GROUP_2_4_Z=
+GROUP_2_5_X=39
+GROUP_2_5_Y=55
+GROUP_2_5_Z=71
+GROUP_2_6_X=7
+GROUP_2_6_Y=23
+GROUP_2_6_Z=
+GROUP_2_7_X=4
+GROUP_2_7_Y=20
+GROUP_2_7_Z=59

 # Same for group 3
-MIDI_3_COUNT=2
-MIDI_3_1_X=48
-MIDI_3_1_Y=58
-MIDI_3_1_Z=
-MIDI_3_2_X=0
-MIDI_3_2_Y=16
-MIDI_3_2_Z=
+GROUP_3_COUNT=2
+GROUP_3_1_X=48
+GROUP_3_1_Y=58
+GROUP_3_1_Z=
+GROUP_3_2_X=0
+GROUP_3_2_Y=16
+GROUP_3_2_Z=

 # =====
 # OTHER
@@ -279,55 +281,51 @@ SAVE_FILE_PREFIX=forge_default_save

 # === HOTKEYS
 # You can change the default keycodes used on runtime
-# Modifiers are encoded like this:
-# 1000 -> shift
-# 10000 -> control
-# 100000 -> alt
-# This means 110082 is control+alt+R
+

 # R on (qwerty)
-HOTKEY_RANDOMIZE=82
+KEY_RANDOMIZE=1082
 # SHIFT+R (qwerty)
-HOTKEY_RESET=1082
+KEY_RESET=11082
 # D (qwerty)
-HOTKEY_DEMO=68
+KEY_DEMO=1068
 # A (qwerty)
-HOTKEY_AUTORAND=65
+KEY_AUTORAND=1065
 # Left arrow
-HOTKEY_AUTORAND_DOWN=263
+KEY_AUTORAND_DOWN=1263
 # Right arrow
-HOTKEY_AUTORAND_UP=262
+KEY_AUTORAND_UP=1262
 # Down arrow
-HOTKEY_TEMPO_DOWN=264
+KEY_TEMPO_DOWN=1264
 # Up arrow
-HOTKEY_TEMPO_UP=265
+KEY_TEMPO_UP=1265

 # Number of load states keys
-HOTKEY_LOAD_COUNT=10
+KEY_LOAD_COUNT=10

 # 1 to 9 then 0 keys
-HOTKEY_LOAD_1=49
-HOTKEY_LOAD_2=50
-HOTKEY_LOAD_3=51
-HOTKEY_LOAD_4=52
-HOTKEY_LOAD_5=53
-HOTKEY_LOAD_6=54
-HOTKEY_LOAD_7=55
-HOTKEY_LOAD_8=56
-HOTKEY_LOAD_9=57
-HOTKEY_LOAD_10=48
+KEY_LOAD_1=1049
+KEY_LOAD_2=1050
+KEY_LOAD_3=1051
+KEY_LOAD_4=1052
+KEY_LOAD_5=1053
+KEY_LOAD_6=1054
+KEY_LOAD_7=1055
+KEY_LOAD_8=1056
+KEY_LOAD_9=1057
+KEY_LOAD_10=1048

 # Number of save states keys
-HOTKEY_SAVE_COUNT=10
+KEY_SAVE_COUNT=10

 # 1 to 9 then 0 keys with shift
-HOTKEY_SAVE_1=1049
-HOTKEY_SAVE_2=1050
-HOTKEY_SAVE_3=1051
-HOTKEY_SAVE_4=1052
-HOTKEY_SAVE_5=1053
-HOTKEY_SAVE_6=1054
-HOTKEY_SAVE_7=1055
-HOTKEY_SAVE_8=1056
-HOTKEY_SAVE_9=1057
-HOTKEY_SAVE_10=1048
+KEY_SAVE_1=11049
+KEY_SAVE_2=11050
+KEY_SAVE_3=11051
+KEY_SAVE_4=11052
+KEY_SAVE_5=11053
+KEY_SAVE_6=11054
+KEY_SAVE_7=11055
+KEY_SAVE_8=11056
+KEY_SAVE_9=11057
+KEY_SAVE_10=11048
@@ -13,8 +13,8 @@ out vec4 fragColor;
 subroutine uniform src_stage_sub src_stage;

 uniform int iSeed3;
-uniform vec3 iMidi1_1[6];
+uniform vec3 iGroup1_1[6];

 void main() {
-    fragColor = src_stage(vUV, iSeed3, iMidi1_1[0], iMidi1_1[1].xy, iMidi1_1[2], iMidi1_1[3].xy, iMidi1_1[4], iMidi1_1[5].xy);
+    fragColor = src_stage(vUV, iSeed3, iGroup1_1[0], iGroup1_1[1].xy, iGroup1_1[2], iGroup1_1[3].xy, iGroup1_1[4], iGroup1_1[5].xy);
 }
@@ -12,8 +12,8 @@ out vec4 fragColor;
 subroutine uniform src_stage_sub src_stage;

 uniform int iSeed4;
-uniform vec3 iMidi1_2[6];
+uniform vec3 iGroup1_2[6];

 void main() {
-    fragColor = src_stage(vUV, iSeed4, iMidi1_2[0], iMidi1_2[1].xy, iMidi1_2[2], iMidi1_2[3].xy, iMidi1_2[4], iMidi1_2[5].xy);
+    fragColor = src_stage(vUV, iSeed4, iGroup1_2[0], iGroup1_2[1].xy, iGroup1_2[2], iGroup1_2[3].xy, iGroup1_2[4], iGroup1_2[5].xy);
 }
@@ -14,8 +14,8 @@ out vec4 fragColor;
 uniform sampler2D iTex7;
 uniform sampler2D iTex9;
 uniform int iSeed5;
-uniform vec3 iMidi2_1[7];
+uniform vec3 iGroup2_1[7];

 void main() {
-    fragColor = fx_stage(vUV, iTex7, iTex9, iSeed5, iMidi2_1[0], iMidi2_1[1].xy, iMidi2_1[2], iMidi2_1[3].xy, iMidi2_1[4], iMidi2_1[5].xy, iMidi2_1[6]);
+    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]);
 }
@@ -14,8 +14,8 @@ out vec4 fragColor;
 uniform sampler2D iTex8;
 uniform sampler2D iTex10;
 uniform int iSeed6;
-uniform vec3 iMidi2_2[7];
+uniform vec3 iGroup2_2[7];

 void main() {
-    fragColor = fx_stage(vUV, iTex8, iTex10, iSeed6, iMidi2_2[0], iMidi2_2[1].xy, iMidi2_2[2], iMidi2_2[3].xy, iMidi2_2[4], iMidi2_2[5].xy, iMidi2_2[6]);
+    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]);
 }
@@ -16,11 +16,11 @@ uniform int iDemo;
 uniform sampler2D iTex9;
 uniform sampler2D iTex10;
 uniform int iSeed7;
-uniform vec3 iMidi3_1[2];
+uniform vec3 iGroup3_1[2];

 void main() {
-    float mix_value = magic(iMidi3_1[1].xy, vec3(1, 0, 0), iSeed7);
-    bool mix_type = magic_trigger(vec3(iMidi3_1[0].x, 0, 0), iSeed7 + 10);
+    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_b = texture(iTex10, vUV);
@@ -14,16 +14,16 @@ out vec4 fragColor;
 uniform sampler2D iTex11;
 uniform sampler2D iTex0;
 uniform int iSeed8;
-uniform vec3 iMidi2_3[7];
-uniform vec3 iMidi3_1[2];
+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, iMidi2_3[0], iMidi2_3[1].xy, iMidi2_3[2], iMidi2_3[3].xy, iMidi2_3[4], iMidi2_3[5].xy, iMidi2_3[6]);
+    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]);

    if (iDemo < 1 && iAutoRand < 1) {
-        color = mix(color, vec4(0), iMidi3_1[0].y);
+        color = mix(color, vec4(0), iGroup3_1[0].y);
    }

    fragColor = color;
@@ -35,17 +35,16 @@ uniform int iState8;
 uniform int iActive1;
 uniform int iActive2;

-uniform vec3 iMidi2_1[7];
-uniform vec3 iMidi2_2[7];
-uniform vec3 iMidi2_3[7];
-uniform vec3 iMidi3_1[2];
-
+uniform vec3 iGroup2_1[7];
+uniform vec3 iGroup2_2[7];
+uniform vec3 iGroup2_3[7];
+uniform vec3 iGroup3_1[2];

 vec4 debug(vec2 vUV)
 {
    // start

-	vec2 uv0 = vUV.st;
+    vec2 uv0 = vUV.st;
    float ratio = iResolution.x / iResolution.y;
    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);

@@ -92,30 +91,90 @@ vec4 debug(vec2 vUV)
    if (random_mfx) {
        selected_mfx = int(randTime(iSeed8 + 100) * 14);
    }
-    float fxa_value = magic(iMidi2_1[6].xy, vec3(1, 0, 0), iSeed5);
-    bool fxa_invert = magic_trigger(vec3(iMidi2_1[6].z, 0, 0), iSeed5);
-    float fxb_value = magic(iMidi2_2[6].xy, vec3(1, 0, 0), iSeed6);
-    bool fxb_invert = magic_trigger(vec3(iMidi2_2[6].z, 0, 0), iSeed6);
-    float mfx_value = magic(iMidi2_3[6].xy, vec3(1, 0, 0), iSeed8);
-    bool mfx_invert = magic_trigger(vec3(iMidi2_3[6].z, 0, 0), iSeed8);
-    float mix_value = magic(iMidi3_1[1].xy, vec3(1, 0, 0), iSeed7);
+    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);
+    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);
+    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);
+    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);
-    bool mix_type = magic_trigger(vec3(iMidi3_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] = {
-        {0x46, 0x50, 0x53, 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
-    };
+            {
+                0x46,
+                0x50,
+                0x53,
+                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;

@@ -128,21 +187,20 @@ vec4 debug(vec2 vUV)
    // base frame
    float f =
        h_rect(uv2, vec2(-5, -2), vec2(1), 0.1) +
-        h_rect(uv2, vec2(-2, -2), vec2(1), 0.1) +
-        rect(uv2, vec2(-3.5, -2), vec2(0.5, 0.1)) +
-        h_rect(uv2, vec2(-5, 2), vec2(1), 0.1) +
-        h_rect(uv2, vec2(-2, 2), vec2(1), 0.1) +
-        rect(uv2, vec2(-3.5, 2), vec2(0.5, 0.1)) +
-        h_rect(uv2, vec2(2, 0), vec2(1), 0.1) +
-        h_rect(uv2, vec2(5, 0), vec2(1), 0.1) +
-        rect(uv2, vec2(3.5, 0), vec2(0.5, 0.1)) +
-        rect(uv2, vec2(0.55, -2), vec2(1.5, 0.1)) +
-        rect(uv2, vec2(2, -1.55), vec2(0.1, 0.55)) +
-        rect(uv2, vec2(0.55, 2), vec2(1.5, 0.1)) +
-        rect(uv2, vec2(2, 1.55), vec2(0.1, 0.55)) +
-        rect(uv2, vec2(6.8, 0), vec2(0.75, 0.1)) +
-        h_circle(uv2, vec2(7.8, 0), 0.3, 0.1)
-        ;
+            h_rect(uv2, vec2(-2, -2), vec2(1), 0.1) +
+            rect(uv2, vec2(-3.5, -2), vec2(0.5, 0.1)) +
+            h_rect(uv2, vec2(-5, 2), vec2(1), 0.1) +
+            h_rect(uv2, vec2(-2, 2), vec2(1), 0.1) +
+            rect(uv2, vec2(-3.5, 2), vec2(0.5, 0.1)) +
+            h_rect(uv2, vec2(2, 0), vec2(1), 0.1) +
+            h_rect(uv2, vec2(5, 0), vec2(1), 0.1) +
+            rect(uv2, vec2(3.5, 0), vec2(0.5, 0.1)) +
+            rect(uv2, vec2(0.55, -2), vec2(1.5, 0.1)) +
+            rect(uv2, vec2(2, -1.55), vec2(0.1, 0.55)) +
+            rect(uv2, vec2(0.55, 2), vec2(1.5, 0.1)) +
+            rect(uv2, vec2(2, 1.55), vec2(0.1, 0.55)) +
+            rect(uv2, vec2(6.8, 0), vec2(0.75, 0.1)) +
+            h_circle(uv2, vec2(7.8, 0), 0.3, 0.1);

    if (iDemo < 1 && iInputFormat1 == YUYV_FOURCC) {
        f += circle(uv2, vec2(-9, 2), 0.3);
@@ -183,14 +241,14 @@ vec4 debug(vec2 vUV)

    // show src/fx

-    f += write_5(uv3 * 0.75, vec2(-11.6,-1.8), texts[6]);
-    f += write_5(uv3 * 0.75, vec2(-4.2,-1.8), texts[7]);
+    f += write_5(uv3 * 0.75, vec2(-11.6, -1.8), texts[6]);
+    f += write_5(uv3 * 0.75, vec2(-4.2, -1.8), texts[7]);
    f += char_at(uv3 * 0.5, vec2(-11.5, 3.5), 0x41);
    f += char_at(uv3 * 0.5, 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 * 0.75, vec2(-19.7, -1.8), texts[8]);
    }
-    f += write_5(uv3 * 0.75, vec2(10.9,2), texts[9]);
+    f += write_5(uv3 * 0.75, vec2(10.9, 2), texts[9]);

    // show inputs / feedback
    float line_a_a = rect(uv2, vec2(-7.5, 2), vec2(1.5, 0.1));
@@ -236,21 +294,21 @@ vec4 debug(vec2 vUV)
    float x = 0;

    x = -15;
-    f += write_5(uv3, vec2(x - 4.5,13), texts[1]);
-    f += write_int(uv3, vec2(x + 1.5,13), int(iTempo), 3);
+    f += write_5(uv3, vec2(x - 4.5, 13), texts[1]);
+    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 += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));

    x = 15;
    if (iAutoRand > 0) {
-        f += write_5(uv3, vec2(x - 4.5,13), texts[5]);
-        f += write_int(uv3, vec2(x - 0.5,13), int(iAutoRandCycle), 5);
+        f += write_5(uv3, vec2(x - 4.5, 13), texts[5]);
+        f += write_int(uv3, vec2(x - 0.5, 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 - 0.5, 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), texts[2]);
    }
    f += h_rect(uv3, vec2(x, 12), vec2(4, 0.5), 0.2);
    f += rect(uv3, vec2(x + 4 * v - 4, 12), vec2(4 * v, 0.4));
@@ -1,11 +1,11 @@
 /**
- * Loader generated by glad 2.0.8 on Sun Sep 21 11:51:45 2025
+ * Loader generated by glad 2.0.8 on Wed May 13 21:51:29 2026
 *
 * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0
 *
 * Generator: C/C++
 * Specification: egl
- * Extensions: 10
+ * Extensions: 11
 *
 * APIs:
 *  - egl=1.5
@@ -19,10 +19,10 @@
 *  - ON_DEMAND = False
 *
 * Commandline:
- *    --api='egl=1.5' --extensions='EGL_EXT_image_dma_buf_import,EGL_EXT_image_dma_buf_import_modifiers,EGL_KHR_gl_texture_2D_image,EGL_KHR_image,EGL_KHR_image_base,EGL_KHR_platform_android,EGL_KHR_platform_gbm,EGL_KHR_platform_wayland,EGL_KHR_platform_x11,EGL_MESA_drm_image' c --header-only --loader
+ *    --api='egl=1.5' --extensions='EGL_EXT_image_dma_buf_import,EGL_EXT_image_dma_buf_import_modifiers,EGL_KHR_debug,EGL_KHR_gl_texture_2D_image,EGL_KHR_image,EGL_KHR_image_base,EGL_KHR_platform_android,EGL_KHR_platform_gbm,EGL_KHR_platform_wayland,EGL_KHR_platform_x11,EGL_MESA_drm_image' c --header-only --loader
 *
 * Online:
- *    http://glad.sh/#api=egl%3D1.5&extensions=EGL_EXT_image_dma_buf_import%2CEGL_EXT_image_dma_buf_import_modifiers%2CEGL_KHR_gl_texture_2D_image%2CEGL_KHR_image%2CEGL_KHR_image_base%2CEGL_KHR_platform_android%2CEGL_KHR_platform_gbm%2CEGL_KHR_platform_wayland%2CEGL_KHR_platform_x11%2CEGL_MESA_drm_image&generator=c&options=HEADER_ONLY%2CLOADER
+ *    http://glad.sh/#api=egl%3D1.5&extensions=EGL_EXT_image_dma_buf_import%2CEGL_EXT_image_dma_buf_import_modifiers%2CEGL_KHR_debug%2CEGL_KHR_gl_texture_2D_image%2CEGL_KHR_image%2CEGL_KHR_image_base%2CEGL_KHR_platform_android%2CEGL_KHR_platform_gbm%2CEGL_KHR_platform_wayland%2CEGL_KHR_platform_x11%2CEGL_MESA_drm_image&generator=c&options=HEADER_ONLY%2CLOADER
 *
 */

@@ -201,6 +201,11 @@ typedef void (*GLADpostcallback)(void *ret, const char *name, GLADapiproc apipro
 #define EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY 0x31BD
 #define EGL_CONTEXT_OPENGL_ROBUST_ACCESS 0x31B2
 #define EGL_CORE_NATIVE_ENGINE 0x305B
+#define EGL_DEBUG_CALLBACK_KHR 0x33B8
+#define EGL_DEBUG_MSG_CRITICAL_KHR 0x33B9
+#define EGL_DEBUG_MSG_ERROR_KHR 0x33BA
+#define EGL_DEBUG_MSG_INFO_KHR 0x33BC
+#define EGL_DEBUG_MSG_WARN_KHR 0x33BB
 #define EGL_DEFAULT_DISPLAY EGL_CAST(EGLNativeDisplayType,0)
 #define EGL_DEPTH_SIZE 0x3025
 #define EGL_DISPLAY_SCALING 10000
@@ -295,6 +300,13 @@ typedef void (*GLADpostcallback)(void *ret, const char *name, GLADapiproc apipro
 #define EGL_NO_SURFACE EGL_CAST(EGLSurface,0)
 #define EGL_NO_SYNC EGL_CAST(EGLSync,0)
 #define EGL_NO_TEXTURE 0x305C
+#define EGL_OBJECT_CONTEXT_KHR 0x33B2
+#define EGL_OBJECT_DISPLAY_KHR 0x33B1
+#define EGL_OBJECT_IMAGE_KHR 0x33B4
+#define EGL_OBJECT_STREAM_KHR 0x33B6
+#define EGL_OBJECT_SURFACE_KHR 0x33B3
+#define EGL_OBJECT_SYNC_KHR 0x33B5
+#define EGL_OBJECT_THREAD_KHR 0x33B0
 #define EGL_OPENGL_API 0x30A2
 #define EGL_OPENGL_BIT 0x0008
 #define EGL_OPENGL_ES2_BIT 0x0004
@@ -934,6 +946,8 @@ GLAD_API_CALL int GLAD_EGL_VERSION_1_5;
 GLAD_API_CALL int GLAD_EGL_EXT_image_dma_buf_import;
 #define EGL_EXT_image_dma_buf_import_modifiers 1
 GLAD_API_CALL int GLAD_EGL_EXT_image_dma_buf_import_modifiers;
+#define EGL_KHR_debug 1
+GLAD_API_CALL int GLAD_EGL_KHR_debug;
 #define EGL_KHR_gl_texture_2D_image 1
 GLAD_API_CALL int GLAD_EGL_KHR_gl_texture_2D_image;
 #define EGL_KHR_image 1
@@ -968,6 +982,7 @@ typedef EGLSurface (GLAD_API_PTR *PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC)(EGLDisp
 typedef EGLSurface (GLAD_API_PTR *PFNEGLCREATEPLATFORMWINDOWSURFACEPROC)(EGLDisplay dpy, EGLConfig config, void * native_window, const EGLAttrib * attrib_list);
 typedef EGLSync (GLAD_API_PTR *PFNEGLCREATESYNCPROC)(EGLDisplay dpy, EGLenum type, const EGLAttrib * attrib_list);
 typedef EGLSurface (GLAD_API_PTR *PFNEGLCREATEWINDOWSURFACEPROC)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint * attrib_list);
+typedef EGLint (GLAD_API_PTR *PFNEGLDEBUGMESSAGECONTROLKHRPROC)(EGLDEBUGPROCKHR callback, const EGLAttrib * attrib_list);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLDESTROYCONTEXTPROC)(EGLDisplay dpy, EGLContext ctx);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLDESTROYIMAGEPROC)(EGLDisplay dpy, EGLImage image);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLDESTROYIMAGEKHRPROC)(EGLDisplay dpy, EGLImageKHR image);
@@ -985,9 +1000,11 @@ typedef EGLDisplay (GLAD_API_PTR *PFNEGLGETPLATFORMDISPLAYPROC)(EGLenum platform
 typedef __eglMustCastToProperFunctionPointerType (GLAD_API_PTR *PFNEGLGETPROCADDRESSPROC)(const char * procname);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLGETSYNCATTRIBPROC)(EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLAttrib * value);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLINITIALIZEPROC)(EGLDisplay dpy, EGLint * major, EGLint * minor);
+typedef EGLint (GLAD_API_PTR *PFNEGLLABELOBJECTKHRPROC)(EGLDisplay display, EGLenum objectType, EGLObjectKHR object, EGLLabelKHR label);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLMAKECURRENTPROC)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
 typedef EGLenum (GLAD_API_PTR *PFNEGLQUERYAPIPROC)(void);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLQUERYCONTEXTPROC)(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint * value);
+typedef EGLBoolean (GLAD_API_PTR *PFNEGLQUERYDEBUGKHRPROC)(EGLint attribute, EGLAttrib * value);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLQUERYDMABUFFORMATSEXTPROC)(EGLDisplay dpy, EGLint max_formats, EGLint * formats, EGLint * num_formats);
 typedef EGLBoolean (GLAD_API_PTR *PFNEGLQUERYDMABUFMODIFIERSEXTPROC)(EGLDisplay dpy, EGLint format, EGLint max_modifiers, EGLuint64KHR * modifiers, EGLBoolean * external_only, EGLint * num_modifiers);
 typedef const char * (GLAD_API_PTR *PFNEGLQUERYSTRINGPROC)(EGLDisplay dpy, EGLint name);
@@ -1035,6 +1052,8 @@ GLAD_API_CALL PFNEGLCREATESYNCPROC glad_eglCreateSync;
 #define eglCreateSync glad_eglCreateSync
 GLAD_API_CALL PFNEGLCREATEWINDOWSURFACEPROC glad_eglCreateWindowSurface;
 #define eglCreateWindowSurface glad_eglCreateWindowSurface
+GLAD_API_CALL PFNEGLDEBUGMESSAGECONTROLKHRPROC glad_eglDebugMessageControlKHR;
+#define eglDebugMessageControlKHR glad_eglDebugMessageControlKHR
 GLAD_API_CALL PFNEGLDESTROYCONTEXTPROC glad_eglDestroyContext;
 #define eglDestroyContext glad_eglDestroyContext
 GLAD_API_CALL PFNEGLDESTROYIMAGEPROC glad_eglDestroyImage;
@@ -1069,12 +1088,16 @@ GLAD_API_CALL PFNEGLGETSYNCATTRIBPROC glad_eglGetSyncAttrib;
 #define eglGetSyncAttrib glad_eglGetSyncAttrib
 GLAD_API_CALL PFNEGLINITIALIZEPROC glad_eglInitialize;
 #define eglInitialize glad_eglInitialize
+GLAD_API_CALL PFNEGLLABELOBJECTKHRPROC glad_eglLabelObjectKHR;
+#define eglLabelObjectKHR glad_eglLabelObjectKHR
 GLAD_API_CALL PFNEGLMAKECURRENTPROC glad_eglMakeCurrent;
 #define eglMakeCurrent glad_eglMakeCurrent
 GLAD_API_CALL PFNEGLQUERYAPIPROC glad_eglQueryAPI;
 #define eglQueryAPI glad_eglQueryAPI
 GLAD_API_CALL PFNEGLQUERYCONTEXTPROC glad_eglQueryContext;
 #define eglQueryContext glad_eglQueryContext
+GLAD_API_CALL PFNEGLQUERYDEBUGKHRPROC glad_eglQueryDebugKHR;
+#define eglQueryDebugKHR glad_eglQueryDebugKHR
 GLAD_API_CALL PFNEGLQUERYDMABUFFORMATSEXTPROC glad_eglQueryDmaBufFormatsEXT;
 #define eglQueryDmaBufFormatsEXT glad_eglQueryDmaBufFormatsEXT
 GLAD_API_CALL PFNEGLQUERYDMABUFMODIFIERSEXTPROC glad_eglQueryDmaBufModifiersEXT;
@@ -1157,6 +1180,7 @@ int GLAD_EGL_VERSION_1_4 = 0;
 int GLAD_EGL_VERSION_1_5 = 0;
 int GLAD_EGL_EXT_image_dma_buf_import = 0;
 int GLAD_EGL_EXT_image_dma_buf_import_modifiers = 0;
+int GLAD_EGL_KHR_debug = 0;
 int GLAD_EGL_KHR_gl_texture_2D_image = 0;
 int GLAD_EGL_KHR_image = 0;
 int GLAD_EGL_KHR_image_base = 0;
@@ -1184,6 +1208,7 @@ PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC glad_eglCreatePlatformPixmapSurface = NULL
 PFNEGLCREATEPLATFORMWINDOWSURFACEPROC glad_eglCreatePlatformWindowSurface = NULL;
 PFNEGLCREATESYNCPROC glad_eglCreateSync = NULL;
 PFNEGLCREATEWINDOWSURFACEPROC glad_eglCreateWindowSurface = NULL;
+PFNEGLDEBUGMESSAGECONTROLKHRPROC glad_eglDebugMessageControlKHR = NULL;
 PFNEGLDESTROYCONTEXTPROC glad_eglDestroyContext = NULL;
 PFNEGLDESTROYIMAGEPROC glad_eglDestroyImage = NULL;
 PFNEGLDESTROYIMAGEKHRPROC glad_eglDestroyImageKHR = NULL;
@@ -1201,9 +1226,11 @@ PFNEGLGETPLATFORMDISPLAYPROC glad_eglGetPlatformDisplay = NULL;
 PFNEGLGETPROCADDRESSPROC glad_eglGetProcAddress = NULL;
 PFNEGLGETSYNCATTRIBPROC glad_eglGetSyncAttrib = NULL;
 PFNEGLINITIALIZEPROC glad_eglInitialize = NULL;
+PFNEGLLABELOBJECTKHRPROC glad_eglLabelObjectKHR = NULL;
 PFNEGLMAKECURRENTPROC glad_eglMakeCurrent = NULL;
 PFNEGLQUERYAPIPROC glad_eglQueryAPI = NULL;
 PFNEGLQUERYCONTEXTPROC glad_eglQueryContext = NULL;
+PFNEGLQUERYDEBUGKHRPROC glad_eglQueryDebugKHR = NULL;
 PFNEGLQUERYDMABUFFORMATSEXTPROC glad_eglQueryDmaBufFormatsEXT = NULL;
 PFNEGLQUERYDMABUFMODIFIERSEXTPROC glad_eglQueryDmaBufModifiersEXT = NULL;
 PFNEGLQUERYSTRINGPROC glad_eglQueryString = NULL;
@@ -1284,6 +1311,12 @@ static void glad_egl_load_EGL_EXT_image_dma_buf_import_modifiers( GLADuserptrloa
    glad_eglQueryDmaBufFormatsEXT = (PFNEGLQUERYDMABUFFORMATSEXTPROC) load(userptr, "eglQueryDmaBufFormatsEXT");
    glad_eglQueryDmaBufModifiersEXT = (PFNEGLQUERYDMABUFMODIFIERSEXTPROC) load(userptr, "eglQueryDmaBufModifiersEXT");
 }
+static void glad_egl_load_EGL_KHR_debug( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_EGL_KHR_debug) return;
+    glad_eglDebugMessageControlKHR = (PFNEGLDEBUGMESSAGECONTROLKHRPROC) load(userptr, "eglDebugMessageControlKHR");
+    glad_eglLabelObjectKHR = (PFNEGLLABELOBJECTKHRPROC) load(userptr, "eglLabelObjectKHR");
+    glad_eglQueryDebugKHR = (PFNEGLQUERYDEBUGKHRPROC) load(userptr, "eglQueryDebugKHR");
+}
 static void glad_egl_load_EGL_KHR_image( GLADuserptrloadfunc load, void* userptr) {
    if(!GLAD_EGL_KHR_image) return;
    glad_eglCreateImageKHR = (PFNEGLCREATEIMAGEKHRPROC) load(userptr, "eglCreateImageKHR");
@@ -1338,6 +1371,7 @@ static int glad_egl_find_extensions_egl(EGLDisplay display) {

    GLAD_EGL_EXT_image_dma_buf_import = glad_egl_has_extension(extensions, "EGL_EXT_image_dma_buf_import");
    GLAD_EGL_EXT_image_dma_buf_import_modifiers = glad_egl_has_extension(extensions, "EGL_EXT_image_dma_buf_import_modifiers");
+    GLAD_EGL_KHR_debug = glad_egl_has_extension(extensions, "EGL_KHR_debug");
    GLAD_EGL_KHR_gl_texture_2D_image = glad_egl_has_extension(extensions, "EGL_KHR_gl_texture_2D_image");
    GLAD_EGL_KHR_image = glad_egl_has_extension(extensions, "EGL_KHR_image");
    GLAD_EGL_KHR_image_base = glad_egl_has_extension(extensions, "EGL_KHR_image_base");
@@ -1409,6 +1443,7 @@ int gladLoadEGLUserPtr(EGLDisplay display, GLADuserptrloadfunc load, void* userp

    if (!glad_egl_find_extensions_egl(display)) return 0;
    glad_egl_load_EGL_EXT_image_dma_buf_import_modifiers(load, userptr);
+    glad_egl_load_EGL_KHR_debug(load, userptr);
    glad_egl_load_EGL_KHR_image(load, userptr);
    glad_egl_load_EGL_KHR_image_base(load, userptr);
    glad_egl_load_EGL_MESA_drm_image(load, userptr);
@@ -1421,7 +1456,7 @@ int gladLoadEGL(EGLDisplay display, GLADloadfunc load) {
    return gladLoadEGLUserPtr(display, glad_egl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load);
 }

- 
+

 #ifdef GLAD_EGL

@@ -1572,4 +1607,3 @@ void gladLoaderUnloadEGL(void) {
 #endif

 #endif /* GLAD_EGL_IMPLEMENTATION */
-
@@ -1,11 +1,11 @@
 /**
- * Loader generated by glad 2.0.8 on Sun Sep 21 13:34:57 2025
+ * Loader generated by glad 2.0.8 on Wed May 13 21:57:23 2026
 *
 * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0
 *
 * Generator: C/C++
 * Specification: gl
- * Extensions: 3
+ * Extensions: 4
 *
 * 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' c --header-only --loader
+ *    --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
 *
 * 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&generator=c&options=HEADER_ONLY%2CLOADER
+ *    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
 *
 */

@@ -2409,6 +2409,8 @@ GLAD_API_CALL int GLAD_GL_ARB_direct_state_access;
 GLAD_API_CALL int GLAD_GL_EXT_EGL_image_storage;
 #define GL_EXT_direct_state_access 1
 GLAD_API_CALL int GLAD_GL_EXT_direct_state_access;
+#define GL_KHR_debug 1
+GLAD_API_CALL int GLAD_GL_KHR_debug;


 typedef void (GLAD_API_PTR *PFNGLACCUMPROC)(GLenum op, GLfloat value);
@@ -6396,6 +6398,7 @@ int GLAD_GL_VERSION_4_6 = 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;
+int GLAD_GL_KHR_debug = 0;



@@ -9178,6 +9181,20 @@ static void glad_gl_load_GL_EXT_direct_state_access( GLADuserptrloadfunc load, v
    glad_glVertexArrayVertexBindingDivisorEXT = (PFNGLVERTEXARRAYVERTEXBINDINGDIVISOREXTPROC) load(userptr, "glVertexArrayVertexBindingDivisorEXT");
    glad_glVertexArrayVertexOffsetEXT = (PFNGLVERTEXARRAYVERTEXOFFSETEXTPROC) load(userptr, "glVertexArrayVertexOffsetEXT");
 }
+static void glad_gl_load_GL_KHR_debug( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_KHR_debug) return;
+    glad_glDebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC) load(userptr, "glDebugMessageCallback");
+    glad_glDebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC) load(userptr, "glDebugMessageControl");
+    glad_glDebugMessageInsert = (PFNGLDEBUGMESSAGEINSERTPROC) load(userptr, "glDebugMessageInsert");
+    glad_glGetDebugMessageLog = (PFNGLGETDEBUGMESSAGELOGPROC) load(userptr, "glGetDebugMessageLog");
+    glad_glGetObjectLabel = (PFNGLGETOBJECTLABELPROC) load(userptr, "glGetObjectLabel");
+    glad_glGetObjectPtrLabel = (PFNGLGETOBJECTPTRLABELPROC) load(userptr, "glGetObjectPtrLabel");
+    glad_glGetPointerv = (PFNGLGETPOINTERVPROC) load(userptr, "glGetPointerv");
+    glad_glObjectLabel = (PFNGLOBJECTLABELPROC) load(userptr, "glObjectLabel");
+    glad_glObjectPtrLabel = (PFNGLOBJECTPTRLABELPROC) load(userptr, "glObjectPtrLabel");
+    glad_glPopDebugGroup = (PFNGLPOPDEBUGGROUPPROC) load(userptr, "glPopDebugGroup");
+    glad_glPushDebugGroup = (PFNGLPUSHDEBUGGROUPPROC) load(userptr, "glPushDebugGroup");
+}



@@ -9276,6 +9293,7 @@ static int glad_gl_find_extensions_gl(void) {
    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");
+    GLAD_GL_KHR_debug = glad_gl_has_extension(exts, exts_i, "GL_KHR_debug");

    glad_gl_free_extensions(exts_i);

@@ -9360,6 +9378,7 @@ int gladLoadGLUserPtr( GLADuserptrloadfunc load, void *userptr) {
    glad_gl_load_GL_ARB_direct_state_access(load, userptr);
    glad_gl_load_GL_EXT_EGL_image_storage(load, userptr);
    glad_gl_load_GL_EXT_direct_state_access(load, userptr);
+    glad_gl_load_GL_KHR_debug(load, userptr);



@@ -9373,7 +9392,7 @@ int gladLoadGL( GLADloadfunc load) {



- 
+

 #ifdef GLAD_GL

@@ -9482,7 +9501,9 @@ static void* glad_gl_dlopen_handle(void) {
        "libGL-1.so",
  #endif
        "libGL.so.1",
-        "libGL.so"
+        "libGL.so",
+        "libEGL.so.1",
+        "libEGL.so"
    };
 #endif

@@ -9505,6 +9526,9 @@ static struct _glad_gl_userptr glad_gl_build_userptr(void *handle) {
 #else
    userptr.gl_get_proc_address_ptr =
        (GLADglprocaddrfunc) glad_dlsym_handle(handle, "glXGetProcAddressARB");
+    if (!userptr.gl_get_proc_address_ptr)
+        userptr.gl_get_proc_address_ptr =
+            (GLADglprocaddrfunc) glad_dlsym_handle(handle, "eglGetProcAddress");
 #endif

    return userptr;
@@ -9547,4 +9571,3 @@ void gladLoaderUnloadGL(void) {
 #endif

 #endif /* GLAD_GL_IMPLEMENTATION */
-
@@ -6,7 +6,7 @@
 # (shaders, video devices, textures, midi inputs, etc.)
 # Every number based constant will be "one-based" (1,2,3,etc.)
 # To read more, go to
-# https://github.com/klemek/forge-steel
+# https://git.klemek.fr/klemek/forge-steel


 # ================
@@ -24,7 +24,7 @@
 UNIFORM_TIME=iTime
 # Current tempo
 UNIFORM_TEMPO=iTempo
-# Current total beats 
+# Current total beats
 UNIFORM_BEATS=iBeats

 # --- uniform int ---
@@ -44,8 +44,8 @@ UNIFORM_RESOLUTION=iResolution
 # --- uniform vec3 ---

 # Midi group X layer Y (beware of group size)
-# Injected as "iMidiX_Y[Z]"
-UNIFORM_MIDI_PREFIX=iMidi
+# Injected as "iGroupX_Y[Z]"
+UNIFORM_GROUP_PREFIX=iGroup

 # --- uniform sampler2D ---

@@ -79,9 +79,17 @@ FRAG_OUTPUT=2
 FRAG_MONITOR=2


-# ========
-# MIDI I/O
-# ========
+# ==========
+# I/O Inputs
+# ==========
+# Each code either maps to a midi event or a key code
+# 0 - 999 -> midi event
+# Keyboard modifiers are encoded like this:
+# 1000 -> keyboard event
+# 10000 -> shift
+# 100000 -> control
+# 1000000 -> alt
+# This means 111082 is control+alt+R


 # The recognized ALSA name of the midi device
@@ -114,8 +122,8 @@ FADER_16=23
 # Midi code for tap tempo
 TAP_TEMPO=46

-# === MIDI INPUT STATES
-# Midi inputs will control FORGE's state as follows
+# === GROUP INPUT STATES
+# Inputs will control FORGE's state as follows
 # X groups of Y layers sized Z
 # You can manipulate only 1 layer at a time
 # Every layer of every groups will be send as uniforms
@@ -123,68 +131,68 @@ TAP_TEMPO=46
 # with the same codes for nice display

 # Total number of groups
-MIDI_COUNT=1
+GROUP_COUNT=1

 # Size of group 1
-MIDI_1_COUNT=20
+GROUP_1_COUNT=20
 # Every code of active layer manipulation of group 1
-MIDI_1_1_X=32
-MIDI_1_1_Y=48
-MIDI_1_1_Z=64
-MIDI_1_2_X=0
-MIDI_1_2_Y=16
-MIDI_1_2_Z=
-MIDI_1_3_X=33
-MIDI_1_3_Y=49
-MIDI_1_3_Z=65
-MIDI_1_4_X=1
-MIDI_1_4_Y=17
-MIDI_1_4_Z=
-MIDI_1_5_X=34
-MIDI_1_5_Y=50
-MIDI_1_5_Z=66
-MIDI_1_6_X=2
-MIDI_1_6_Y=18
-MIDI_1_6_Z=
-MIDI_1_7_X=35
-MIDI_1_7_Y=51
-MIDI_1_7_Z=67
-MIDI_1_8_X=3
-MIDI_1_8_Y=19
-MIDI_1_8_Z=
-MIDI_1_9_X=36
-MIDI_1_9_Y=52
-MIDI_1_9_Z=68
-MIDI_1_10_X=4
-MIDI_1_10_Y=20
-MIDI_1_10_Z=
-MIDI_1_11_X=37
-MIDI_1_11_Y=53
-MIDI_1_11_Z=69
-MIDI_1_12_X=5
-MIDI_1_12_Y=21
-MIDI_1_12_Z=
-MIDI_1_13_X=38
-MIDI_1_13_Y=54
-MIDI_1_13_Z=70
-MIDI_1_14_X=6
-MIDI_1_14_Y=22
-MIDI_1_14_Z=
-MIDI_1_15_X=39
-MIDI_1_15_Y=55
-MIDI_1_15_Z=71
-MIDI_1_16_X=7
-MIDI_1_16_Y=23
-MIDI_1_16_Z=
-MIDI_1_17_X=58
-MIDI_1_17_Y=59
-MIDI_1_17_Z=
-MIDI_1_18_X=60
-MIDI_1_18_Y=61
-MIDI_1_18_Z=62
-MIDI_1_19_X=43
-MIDI_1_19_Y=44
-MIDI_1_19_Z=42
-MIDI_1_20_X=41
-MIDI_1_20_Y=45
-MIDI_1_20_Z=
+GROUP_1_1_X=32
+GROUP_1_1_Y=48
+GROUP_1_1_Z=64
+GROUP_1_2_X=0
+GROUP_1_2_Y=16
+GROUP_1_2_Z=
+GROUP_1_3_X=33
+GROUP_1_3_Y=49
+GROUP_1_3_Z=65
+GROUP_1_4_X=1
+GROUP_1_4_Y=17
+GROUP_1_4_Z=
+GROUP_1_5_X=34
+GROUP_1_5_Y=50
+GROUP_1_5_Z=66
+GROUP_1_6_X=2
+GROUP_1_6_Y=18
+GROUP_1_6_Z=
+GROUP_1_7_X=35
+GROUP_1_7_Y=51
+GROUP_1_7_Z=67
+GROUP_1_8_X=3
+GROUP_1_8_Y=19
+GROUP_1_8_Z=
+GROUP_1_9_X=36
+GROUP_1_9_Y=52
+GROUP_1_9_Z=68
+GROUP_1_10_X=4
+GROUP_1_10_Y=20
+GROUP_1_10_Z=
+GROUP_1_11_X=37
+GROUP_1_11_Y=53
+GROUP_1_11_Z=69
+GROUP_1_12_X=5
+GROUP_1_12_Y=21
+GROUP_1_12_Z=
+GROUP_1_13_X=38
+GROUP_1_13_Y=54
+GROUP_1_13_Z=70
+GROUP_1_14_X=6
+GROUP_1_14_Y=22
+GROUP_1_14_Z=
+GROUP_1_15_X=39
+GROUP_1_15_Y=55
+GROUP_1_15_Z=71
+GROUP_1_16_X=7
+GROUP_1_16_Y=23
+GROUP_1_16_Z=
+GROUP_1_17_X=58
+GROUP_1_17_Y=59
+GROUP_1_17_Z=
+GROUP_1_18_X=60
+GROUP_1_18_Y=61
+GROUP_1_18_Z=62
+GROUP_1_19_X=43
+GROUP_1_19_Y=44
+GROUP_1_19_Z=42
+GROUP_1_20_X=41
+GROUP_1_20_Y=45
+GROUP_1_20_Z=
@@ -12,31 +12,31 @@ uniform int iFPS; // output window frames per seconds
 uniform int iDemo; // 0/1 if demo mode
 uniform int iSeed1; // a random seed assigned at start
 uniform vec2 iResolution; // output window resolution in pixels
-uniform vec3 iMidi1_1[20]; // all midi inputs defined
+uniform vec3 iGroup1_1[20]; // all midi inputs defined
 uniform sampler2D iTex0; // available texture (this code output, so feedback)

 void main() {
    // all available buttons and faders
-    vec3 b1 = iMidi1_1[0];
-    vec2 f1 = iMidi1_1[1].xy;
-    vec3 b2 = iMidi1_1[2];
-    vec2 f2 = iMidi1_1[3].xy;
-    vec3 b3 = iMidi1_1[4];
-    vec2 f3 = iMidi1_1[5].xy;
-    vec3 b4 = iMidi1_1[6];
-    vec2 f4 = iMidi1_1[7].xy;
-    vec3 b5 = iMidi1_1[8];
-    vec2 f5 = iMidi1_1[9].xy;
-    vec3 b6 = iMidi1_1[10];
-    vec2 f6 = iMidi1_1[11].xy;
-    vec3 b7 = iMidi1_1[12];
-    vec2 f7 = iMidi1_1[13].xy;
-    vec3 b8 = iMidi1_1[14];
-    vec2 f8 = iMidi1_1[15].xy;
-    vec3 b9 = iMidi1_1[16];
-    vec3 b10 = iMidi1_1[17];
-    vec3 b11 = iMidi1_1[18];
-    vec3 b12 = iMidi1_1[19];
+    vec3 b1 = iGroup1_1[0];
+    vec2 f1 = iGroup1_1[1].xy;
+    vec3 b2 = iGroup1_1[2];
+    vec2 f2 = iGroup1_1[3].xy;
+    vec3 b3 = iGroup1_1[4];
+    vec2 f3 = iGroup1_1[5].xy;
+    vec3 b4 = iGroup1_1[6];
+    vec2 f4 = iGroup1_1[7].xy;
+    vec3 b5 = iGroup1_1[8];
+    vec2 f5 = iGroup1_1[9].xy;
+    vec3 b6 = iGroup1_1[10];
+    vec2 f6 = iGroup1_1[11].xy;
+    vec3 b7 = iGroup1_1[12];
+    vec2 f7 = iGroup1_1[13].xy;
+    vec3 b8 = iGroup1_1[14];
+    vec2 f8 = iGroup1_1[15].xy;
+    vec3 b9 = iGroup1_1[16];
+    vec3 b10 = iGroup1_1[17];
+    vec3 b11 = iGroup1_1[18];
+    vec3 b12 = iGroup1_1[19];

    // center UV and scale it to ratio
    vec2 uv0 = vUV.st;
@@ -47,19 +47,19 @@ void main() {
    float circle_dist = 0.1 + 0.9 * f1.x;
    float circle_size = 0.1 + 0.9 * f2.x;
    vec2 circle_pos = circle_dist * vec2(
-        sin(iBeats * 2 * PI),
-        cos(iBeats * 2 * PI)
-    );
+                sin(iBeats * 2 * PI),
+                cos(iBeats * 2 * PI)
+            );
    float circle = 1 - step(circle_size, length(uv1 - circle_pos));

    // fader 3, 4 and 5 controls the color
    vec3 color = vec3(
-        f3.x,
-        f4.x,
-        f5.x
-    );
+            f3.x,
+            f4.x,
+            f5.x
+        );
    vec3 out_color = mix(color, 1 - color, circle);

    // fader 8 controls the feedback value
    fragColor = mix(vec4(out_color, 1), texture(iTex0, vUV.st), f8.x);
-}
+}
@@ -32,11 +32,13 @@ static void print_help(int status_code) {
 #ifdef VIDEO_IN
      "[-vi=FILE] "
      "[-vs=SIZE] "
+      "[-vb=COUNT] "
      "[-vr / -nvr] "
 #endif /* VIDEO_IN */
      "[-is=SIZE] "
      "[-ls / -nls] "
      "[-ss / -nss] "
+      "[-mr / -nmr] "
      "[-tm] "
      "[-tf] "
      "\n\n"
@@ -62,6 +64,8 @@ static void print_help(int status_code) {
 #ifdef VIDEO_IN
      "  -vi, --video-in             path to video capture device (multiple "
      "allowed)\n"
+      "  -vb, --video-buffers        number of video buffers to use (default: "
+      "2)\n"
      "  -vs, --video-size           video capture desired height (default: "
      "internal texture height)\n"
      "  -vr, --video-reconnect      auto-reconnect video (default)\n"
@@ -72,6 +76,8 @@ static void print_help(int status_code) {
      "  -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"
+      "  -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");
  exit(status_code);
@@ -131,12 +137,16 @@ void args_parse(Parameters *params, int argc, char **argv) {
  params->demo = false;
  params->auto_random = false;
  params->auto_random_cycle = 4;
+#ifdef VIDEO_IN
  params->video_in.length = 0;
+  params->video_buffers = 2;
  params->video_size = 0;
  params->video_reconnect = true;
+#endif /* VIDEO_IN */
  params->internal_size = 720;
  params->load_state = true;
  params->save_state = true;
+  params->midi_reconnect = true;
  params->trace_midi = false;
  params->trace_fps = false;

@@ -180,38 +190,6 @@ void args_parse(Parameters *params, int argc, char **argv) {
      if (params->auto_random_cycle == 0) {
        invalid_value(arg, value);
      }
-    } else if (is_arg(arg, "-vi") || is_arg(arg, "--video-in")) {
-#ifdef VIDEO_IN
-      if (params->video_in.length == MAX_VIDEO) {
-        log_error("maximum video input reached");
-        exit(EXIT_FAILURE);
-      }
-      strlcpy(params->video_in.values[params->video_in.length++], value,
-              STR_LEN);
-#else
-      invalid_arg(arg);
-#endif /* VIDEO_IN */
-    } else if (is_arg(arg, "-vs") || is_arg(arg, "--video-size")) {
-#ifdef VIDEO_IN
-      params->video_size = parse_uint(arg, value);
-      if (params->video_size == 0) {
-        invalid_value(arg, value);
-      }
-#else
-      invalid_arg(arg);
-#endif /* VIDEO_IN */
-    } else if (is_arg(arg, "-vr") || is_arg(arg, "--video-reconnect")) {
-#ifdef VIDEO_IN
-      params->video_reconnect = true;
-#else
-      invalid_arg(arg);
-#endif /* VIDEO_IN */
-    } else if (is_arg(arg, "-nvr") || is_arg(arg, "--no-video-reconnect")) {
-#ifdef VIDEO_IN
-      params->video_reconnect = false;
-#else
-      invalid_arg(arg);
-#endif /* VIDEO_IN */
    } else if (is_arg(arg, "-is") || is_arg(arg, "--internal-size")) {
      params->internal_size = parse_uint(arg, value);
      if (params->internal_size == 0) {
@@ -225,12 +203,43 @@ 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, "-mr") || is_arg(arg, "--midi-reconnect")) {
+      params->midi_reconnect = true;
+    } else if (is_arg(arg, "-nmr") || is_arg(arg, "--no-midi-reconnect")) {
+      params->midi_reconnect = false;
    } else if (is_arg(arg, "-tm") || is_arg(arg, "--trace-midi")) {
      params->trace_midi = true;
    } else if (is_arg(arg, "-tf") || is_arg(arg, "--trace-fps")) {
      params->trace_fps = true;
    } else {
+#ifdef VIDEO_IN
+      if (is_arg(arg, "-vi") || is_arg(arg, "--video-in")) {
+        if (params->video_in.length == MAX_VIDEO) {
+          log_error("maximum video input reached");
+          exit(EXIT_FAILURE);
+        }
+        strlcpy(params->video_in.values[params->video_in.length++], value,
+                STR_LEN);
+      } else if (is_arg(arg, "-vb") || is_arg(arg, "--video-buffers")) {
+        params->video_buffers = parse_uint(arg, value);
+        if (params->video_buffers == 0) {
+          invalid_value(arg, value);
+        }
+      } else if (is_arg(arg, "-vs") || is_arg(arg, "--video-size")) {
+        params->video_size = parse_uint(arg, value);
+        if (params->video_size == 0) {
+          invalid_value(arg, value);
+        }
+      } else if (is_arg(arg, "-vr") || is_arg(arg, "--video-reconnect")) {
+        params->video_reconnect = true;
+      } else if (is_arg(arg, "-nvr") || is_arg(arg, "--no-video-reconnect")) {
+        params->video_reconnect = false;
+      } else {
+        invalid_arg(arg);
+      }
+#else
      invalid_arg(arg);
+#endif /* VIDEO_IN */
    }
  }

@@ -239,8 +248,9 @@ void args_parse(Parameters *params, int argc, char **argv) {
    log_error("monitor screen cannot be the same as output screen");
    exit(EXIT_FAILURE);
  }
-
+#ifdef VIDEO_IN
  if (params->video_size == 0) {
    params->video_size = params->internal_size;
  }
+#endif /* VIDEO_IN */
 }
@@ -1,5 +1,6 @@
 #include <log.h>
 #include <math.h>
+#include <pthread.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -14,7 +15,6 @@
 #include "midi.h"
 #include "project.h"
 #include "shaders.h"
-#include "shared.h"
 #include "state.h"
 #include "tempo.h"
 #include "timer.h"
@@ -22,15 +22,18 @@
 #include "window.h"

 static Parameters init_params;
-static SharedContext *context;
+static Context context;
 static ShaderProgram program;
 static Window *window_output;
 static Window *window_monitor;
 static Timer timer;
 static MidiDevice midi;
-static bool trace_midi;
 static Project project;

+#ifdef VIDEO_IN
+static VideoCaptureArray video_captures;
+#endif /* VIDEO_IN */
+
 static void compute_fps() {
  double fps;
  char title[STR_LEN];
@@ -52,103 +55,108 @@ static void compute_fps() {
      window_update_title(window_monitor, title);
    }

-    context->fps = (unsigned int)round(fps);
+    context.fps = (unsigned int)round(fps);
  }
 }

 static void init_context() {
-  context = shared_init_context("/" PACKAGE "_context");
+  context.stop = false;

-  context->stop = false;
-
-  state_init(context, &project.state_config, init_params.demo,
+  state_init(&context, project.state_config, init_params.demo,
             init_params.auto_random, init_params.auto_random_cycle,
             init_params.base_tempo, init_params.load_state);

-  memset(context->input_resolutions, 0, sizeof(context->input_resolutions));
+#ifdef VIDEO_IN
+  memset(context.input_resolutions, 0, sizeof(context.input_resolutions));
+  memset(context.input_formats, 0, sizeof(context.input_formats));
+  memset(context.input_fps, 0, sizeof(context.input_fps));
+  memset(context.input_index, 0, sizeof(context.input_index));
+#endif /* VIDEO_IN */
 }

-static void free_context() { shared_close_context(context); }
-
 static void reload_shader(unsigned int i) {
  shaders_update(&program, &project.fragment_shaders[i][0], i, &project);
 }

 #ifdef VIDEO_IN
+
 static void init_inputs() {
-  context->inputs.length = init_params.video_in.length;
+  video_captures.length = init_params.video_in.length;

  for (unsigned int i = 0; i < init_params.video_in.length; i++) {
-    video_init(&context->inputs.values[i], init_params.video_in.values[i],
-               init_params.video_size);
+    video_init(&video_captures.values[i], init_params.video_in.values[i],
+               init_params.video_size, init_params.video_buffers);

-    if (!context->inputs.values[i].error) {
-      context->input_resolutions[i][0] = context->inputs.values[i].width;
-      context->input_resolutions[i][1] = context->inputs.values[i].height;
-      context->inputs.values[i].needs_reload = false;
-      context->inputs.values[i].disconnected = false;
+    if (!video_captures.values[i].error) {
+      context.input_resolutions[i][0] = video_captures.values[i].width;
+      context.input_resolutions[i][1] = video_captures.values[i].height;
+      context.input_formats[i] = video_captures.values[i].pixelformat;
+      video_captures.values[i].needs_reload = false;
+      video_captures.values[i].disconnected = false;
    }
  }
 }

-static bool reconnect_video_captures() {
-  for (unsigned int i = 0; i < init_params.video_in.length; i++) {
-    if (context->inputs.values[i].disconnected) {
-      video_init(&context->inputs.values[i], init_params.video_in.values[i],
-                 init_params.video_size);
+static void start_video_background_read(VideoCapture *video_capture,
+                                        Context *context, int input_index,
+                                        bool trace_fps) {
+  pthread_t thread;
+  struct VideoBackgroundReadArgs *process_args =
+      (struct VideoBackgroundReadArgs *)malloc(
+          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);
+  pthread_detach(thread);
+}

-      if (!context->inputs.values[i].error) {
-        context->input_resolutions[i][0] = context->inputs.values[i].width;
-        context->input_resolutions[i][1] = context->inputs.values[i].height;
+static void *
+background_reconnect_video_captures(__attribute__((unused)) void *args) {
+  log_info("background video capture reconnect started");
+  while (!context.stop) {
+    sleep(1);
+    for (unsigned int i = 0; i < init_params.video_in.length; i++) {
+      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);

-        if (!video_background_read(&context->inputs.values[i], context, i,
-                                   init_params.trace_fps)) {
-          return false;
+        if (!video_captures.values[i].error) {
+          context.input_resolutions[i][0] = video_captures.values[i].width;
+          context.input_resolutions[i][1] = video_captures.values[i].height;
+          context.input_formats[i] = video_captures.values[i].pixelformat;
+          video_captures.values[i].needs_reload = true;
+          video_captures.values[i].disconnected = false;
+          start_video_background_read(&video_captures.values[i], &context, i,
+                                      init_params.trace_fps);
        }
-
-        context->inputs.values[i].needs_reload = true;
-        context->inputs.values[i].disconnected = false;
      }
    }
  }
-  return true;
+  pthread_exit(NULL);
 }

-static bool start_video_captures() {
-  pid_t pid;
-  for (unsigned int i = 0; i < context->inputs.length; i++) {
-    if (!context->inputs.values[i].error &&
-        !video_background_read(&context->inputs.values[i], context, i,
-                               init_params.trace_fps)) {
-      return false;
+static void start_video_captures() {
+  pthread_t thread;
+  for (unsigned int i = 0; i < video_captures.length; i++) {
+    if (!video_captures.values[i].error) {
+      start_video_background_read(&video_captures.values[i], &context, i,
+                                  init_params.trace_fps);
    }
  }
-  if (!init_params.video_reconnect) {
-    return true;
+  if (init_params.video_reconnect) {
+    pthread_create(&thread, NULL, background_reconnect_video_captures, NULL);
+    pthread_detach(thread);
  }
-  pid = fork();
-  if (pid < 0) {
-    log_error("Could not create subprocess");
-    return false;
-  }
-  if (pid == 0) {
-    return true;
-  }
-  log_info("background reconnect acquisition started (pid: %d)", pid);
-  while (!context->stop) {
-    sleep(1);
-    if (!reconnect_video_captures()) {
-      return false;
-    }
-  }
-  exit(EXIT_SUCCESS);
 }

 static void free_video_captures() {
-  for (unsigned int i = 0; i < context->inputs.length; i++) {
+  for (unsigned int i = 0; i < video_captures.length; i++) {
    shaders_free_input(&program, i);

-    video_free(&context->inputs.values[i]);
+    video_free(&video_captures.values[i]);
  }
 }

@@ -157,7 +165,7 @@ static void free_video_captures() {
 static void error_callback(int error, const char *description) {
  log_error("[GLFW] %d: %s", error, description);
  window_terminate();
-  context->stop = true;
+  context.stop = true;
  exit(EXIT_FAILURE);
 }

@@ -173,13 +181,66 @@ static void key_callback(Window *window, int key,
    log_info("[ESC] Closing...");
    window_close(window);
  } else if (event > 0) {
-    state_key_event(context, &project.state_config, event, &midi);
+    state_key_event(&context, project.state_config, event, midi);
  }
 }

 static void midi_callback(unsigned char code, unsigned char value) {
-  state_midi_event(context, &project.state_config, &midi, code, value,
-                   trace_midi);
+  state_midi_event(&context, project.state_config, midi, code, value,
+                   init_params.trace_midi);
+}
+
+static void start_state_background_write() {
+  pthread_t thread;
+  struct StateBackgroundWriteArgs *process_args =
+      (struct StateBackgroundWriteArgs *)malloc(
+          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);
+  pthread_detach(thread);
+}
+
+static void start_midi_background_listen() {
+  pthread_t thread;
+  struct MidiBackgroundListenArgs *process_args =
+      (struct MidiBackgroundListenArgs *)malloc(
+          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);
+  pthread_detach(thread);
+}
+
+static void *background_reconnect_midi(__attribute__((unused)) void *args) {
+  log_info("background midi reconnect started");
+  while (!context.stop) {
+    sleep(1);
+    if (!midi.connected) {
+      midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"));
+      if (midi.connected) {
+        start_midi_background_listen();
+      }
+    }
+  }
+  pthread_exit(NULL);
+}
+
+static void init_midi() {
+  pthread_t thread;
+
+  midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"));
+
+  if (midi.connected) {
+    start_midi_background_listen();
+  }
+
+  if (init_params.midi_reconnect) {
+    pthread_create(&thread, NULL, background_reconnect_midi, NULL);
+    pthread_detach(thread);
+  }
 }

 static bool init(const Parameters *params) {
@@ -196,38 +257,24 @@ static bool init(const Parameters *params) {
 #ifdef VIDEO_IN
  init_inputs();

-  if (!start_video_captures()) {
-    return false;
-  }
+  start_video_captures();
 #endif /* VIDEO_IN */

-  midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"));
+  init_midi();

-  if (midi.error) {
-    context->demo = true;
-  } else {
-    trace_midi = params->trace_midi;
-
-    if (!midi_background_listen(&midi, context, midi_callback)) {
-      return false;
-    }
-  }
-
-  if (!state_background_write(context, &project.state_config, &midi)) {
-    return false;
-  }
+  start_state_background_write();

  window_startup(error_callback);

-  context->tex_resolution[1] = 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);

-    window_use(window_output, context);
+    window_use(window_output, &context);

-    shaders_init(&program, &project, context, false);
+    shaders_init(&program, &project, &context, false);
  } else {
    window_output = NULL;
  }
@@ -237,19 +284,20 @@ static bool init(const Parameters *params) {
        window_init(PACKAGE " " VERSION " (monitor)", params->monitor_screen,
                    params->windowed, window_output, key_callback);

-    window_use(window_monitor, context);
+    window_use(window_monitor, &context);

-    shaders_init(&program, &project, context, window_output != NULL);
+    shaders_init(&program, &project, &context, window_output != NULL);
  } else {
    window_monitor = NULL;
  }

 #ifdef VIDEO_IN
-  shaders_link_inputs(&program, &project, &context->inputs);
+  shaders_link_inputs(&program, &project, &video_captures,
+                      init_params.video_buffers);
 #endif /* VIDEO_IN */

  if (program.error) {
-    context->stop = true;
+    context.stop = true;
    window_terminate();
    exit(EXIT_FAILURE);
  }
@@ -273,10 +321,10 @@ static bool loop() {

 #ifdef VIDEO_IN
  if (init_params.video_reconnect) {
-    for (unsigned int i = 0; i < context->inputs.length; i++) {
-      if (context->inputs.values[i].needs_reload) {
-        shaders_relink_input(&program, &project, &context->inputs, i);
-        context->inputs.values[i].needs_reload = false;
+    for (unsigned int i = 0; i < video_captures.length; i++) {
+      if (video_captures.values[i].needs_reload) {
+        shaders_relink_input(&program, &project, &video_captures, i);
+        video_captures.values[i].needs_reload = false;
      }
    }
  }
@@ -284,21 +332,21 @@ static bool loop() {

  compute_fps();

-  context->time = window_get_time();
-  context->tempo_total = (float)tempo_total(&context->tempo);
+  context.time = window_get_time();
+  context.tempo_total = (float)tempo_total(&context.tempo);

  if (window_output != NULL) {
-    window_use(window_output, context);
+    window_use(window_output, &context);

-    shaders_compute(&program, context, false, false);
+    shaders_compute(&program, &context, false, false);

    window_refresh(window_output);
  }

  if (window_monitor != NULL) {
-    window_use(window_monitor, context);
+    window_use(window_monitor, &context);

-    shaders_compute(&program, context, true, window_output != NULL);
+    shaders_compute(&program, &context, true, window_output != NULL);

    window_refresh(window_monitor);
  }
@@ -309,22 +357,22 @@ static bool loop() {
 }

 static void shutdown() {
-  context->stop = true;
+  context.stop = true;

  if (init_params.save_state) {
-    state_save(context, &project.state_config);
+    state_save(&context, project.state_config);
  }

  shaders_free(&program);

  if (window_output != NULL) {
-    window_use(window_output, context);
+    window_use(window_output, &context);

    shaders_free_window(&program, false);
  }

  if (window_monitor != NULL) {
-    window_use(window_monitor, context);
+    window_use(window_monitor, &context);

    shaders_free_window(&program, init_params.output);
  }
@@ -333,7 +381,7 @@ static void shutdown() {
  free_video_captures();
 #endif /* VIDEO_IN */

-  free_context();
+  midi_close(&midi);

  project_free(&project);

@@ -1,6 +1,6 @@
 #include <alsa/asoundlib.h>
 #include <log.h>
-#include <stdlib.h>
+#include <pthread.h>

 #include "types.h"

@@ -13,14 +13,17 @@ void midi_open(MidiDevice *device, const char *name) {

  snd_rawmidi_open(&device->input, &device->output, name, SND_RAWMIDI_NONBLOCK);

-  device->error = device->input == NULL || device->output == NULL;
+  device->connected = device->input != NULL && device->output != NULL;

-  log_info("(%s) MIDI open", name);
+  if (device->connected) {
+    log_info("(%s) MIDI open", name);
+  } else {
+    log_warn("(%s) MIDI open failed", name);
+  }
 }

-void midi_write(const MidiDevice *device, unsigned char code,
-                unsigned char value) {
-  if (device->error) {
+void midi_write(MidiDevice device, unsigned char code, unsigned char value) {
+  if (!device.connected) {
    return;
  }

@@ -30,35 +33,45 @@ void midi_write(const MidiDevice *device, unsigned char code,
  buffer[1] = code;
  buffer[2] = value;

-  snd_rawmidi_write(device->output, buffer, 3);
+  snd_rawmidi_write(device.output, buffer, 3);
 }

-bool midi_background_listen(const MidiDevice *device,
-                            const SharedContext *context,
-                            void (*event_callback)(unsigned char code,
-                                                   unsigned char value)) {
-  pid_t pid;
+void midi_close(MidiDevice *device) {
+  if (device->connected) {
+    snd_rawmidi_close(device->input);
+    snd_rawmidi_close(device->output);
+    device->connected = false;
+  }
+}
+
+void *midi_background_listen(void *args) {
+  MidiBackgroundReadArgs *process_args = (MidiBackgroundReadArgs *)args;
+  MidiDevice *device = process_args->device;
+  Context *context = process_args->context;
+
  int bytes_read;
+  snd_rawmidi_info_t *info;
  unsigned char buffer[3];

-  pid = fork();
-  if (pid < 0) {
-    log_error("Could not create subprocess");
-    return false;
-  }
-  if (pid == 0) {
-    return true;
-  }
-  log_info("(%s) background acquisition started (pid: %d)", device->name, pid);
+  log_info("(%s) background acquisition started", device->name);

-  while (!context->stop) {
+  snd_rawmidi_info_malloc(&info);
+
+  while (!context->stop && snd_rawmidi_info(device->output, info) == 0) {
    bytes_read = snd_rawmidi_read(device->input, buffer, 3);
    if (bytes_read == 3) {
-      event_callback(buffer[1], buffer[2]);
+      process_args->event_callback(buffer[1], buffer[2]);
    }
  }

-  log_info("(%s) background acquisition stopped by main thread (pid: %d)",
-           device->name, pid);
-  exit(EXIT_SUCCESS);
+  snd_rawmidi_info_free(info);
+
+  if (context->stop) {
+    log_info("(%s) background acquisition stopped by main thread",
+             device->name);
+  } else {
+    log_info("(%s) background acquisition stopped after error", device->name);
+    midi_close(device);
+  }
+  pthread_exit(NULL);
 }
@@ -4,11 +4,8 @@
 #define MIDI_H

 void midi_open(MidiDevice *device, const char *name);
-void midi_write(const MidiDevice *device, unsigned char code,
-                unsigned char value);
-bool midi_background_listen(const MidiDevice *device,
-                            const SharedContext *context,
-                            void (*event_callback)(unsigned char code,
-                                                   unsigned char value));
+void midi_write(MidiDevice device, unsigned char code, unsigned char value);
+void *midi_background_listen(void *args);
+void midi_close(MidiDevice *device);

 #endif /* MIDI_H */
@@ -26,7 +26,7 @@

 static const GLuint unused_uniform = (GLuint)-1;

-bool check_glerror_ro(const char *context) {
+static bool check_glerror_ro(const char *context) {
  unsigned int code;

  code = glGetError();
@@ -39,7 +39,7 @@ bool check_glerror_ro(const char *context) {
  return false;
 }

-bool check_glerror(ShaderProgram *program, const char *context) {
+static bool check_glerror(ShaderProgram *program, const char *context) {
  if (check_glerror_ro(context)) {
    program->error = true;
    return true;
@@ -47,7 +47,20 @@ bool check_glerror(ShaderProgram *program, const char *context) {
  return false;
 }

-bool check_eglerror_ro(const char *context) {
+#ifdef GL_DEBUG
+
+static void gl_debug_callback(GLenum source, GLenum type, GLuint id,
+                              GLenum severity,
+                              __attribute__((unused)) GLsizei length,
+                              const GLchar *message,
+                              __attribute__((unused)) const void *userParam) {
+  log_debug("GL Debug: source=%x, type=%x, id=%d, severity=%x, message=%s",
+            source, type, id, severity, message ? message : "(null)");
+}
+
+#endif /* GL_DEBUG */
+
+static bool check_eglerror_ro(const char *context) {
 #ifdef VIDEO_IN
  unsigned int code;

@@ -61,7 +74,7 @@ bool check_eglerror_ro(const char *context) {
  return false;
 }

-bool check_eglerror(ShaderProgram *program, const char *context) {
+static bool check_eglerror(ShaderProgram *program, const char *context) {
  if (check_eglerror_ro(context)) {
    program->error = true;
    return true;
@@ -69,9 +82,29 @@ bool check_eglerror(ShaderProgram *program, const char *context) {
  return false;
 }

+#ifdef VIDEO_IN
+#ifdef EGL_DEBUG
+
+static void egl_debug_callback(EGLenum error, const char *command,
+                               EGLint messageType, EGLLabelKHR threadLabel,
+                               EGLLabelKHR objectLabel, const char *message) {
+  log_debug("EGL Debug: error=%04x, command=%s, type=%d, "
+            "thread=%p, object=%p, message=%s",
+            error, command ? command : "(null)", messageType, threadLabel,
+            objectLabel, message ? message : "(null)");
+}
+
+#endif /* EGL_DEBUG */
+#endif /* VIDEO_IN */
+
 static bool init_gl(ShaderProgram *program) {
  gladLoadGL(glfwGetProcAddress);

+#ifdef GL_DEBUG
+  glEnable(GL_DEBUG_OUTPUT);
+  glDebugMessageCallback(gl_debug_callback, NULL);
+#endif /* GL_DEBUG */
+
 #ifdef VIDEO_IN
  program->egl_display = glfwGetEGLDisplay();
  if (program->egl_display == EGL_NO_DISPLAY) {
@@ -81,14 +114,27 @@ static bool init_gl(ShaderProgram *program) {
  }

  gladLoadEGL(program->egl_display, glfwGetProcAddress);
+
+#ifdef EGL_DEBUG
+  {
+    PFNEGLDEBUGMESSAGECONTROLKHRPROC debug_ctrl =
+        (PFNEGLDEBUGMESSAGECONTROLKHRPROC)glfwGetProcAddress(
+            "eglDebugMessageControlKHR");
+    if (debug_ctrl != NULL) {
+      const EGLAttrib attrib_list[] = {EGL_NONE};
+      debug_ctrl(egl_debug_callback, attrib_list);
+    }
+  }
+
+#endif /* EGL_DEBUG */
+
 #endif /* VIDEO_IN */

  return !check_glerror(program, "init_gl") &&
         !check_eglerror(program, "init_gl");
 }

-static bool init_textures(ShaderProgram *program,
-                          const SharedContext *context) {
+static bool init_textures(ShaderProgram *program, const Context *context) {
  glGenTextures(program->tex_count, program->textures);
  if (check_glerror(program, "init_textures/glGenTextures")) {
    return false;
@@ -145,18 +191,20 @@ static void rebind_textures(const ShaderProgram *program) {
 #ifdef VIDEO_IN
 static bool link_input_to_texture(ShaderProgram *program, VideoCapture *input,
                                  unsigned int input_index,
-                                  unsigned int texture_index, bool swap,
-                                  bool reload) {
+                                  unsigned int sub_index, bool reload) {
+  unsigned int texture_index =
+      program->tex_count + input_index * program->sub_video_count + sub_index;
+
  if (reload) {
    glDeleteTextures(1, program->textures + texture_index);
    if (check_glerror(program, "link_input_to_texture/glDeleteTextures")) {
      return false;
    }
+  }

-    glGenTextures(1, program->textures + texture_index);
-    if (check_glerror(program, "link_input_to_texture/glGenTextures")) {
-      return false;
-    }
+  glGenTextures(1, program->textures + texture_index);
+  if (check_glerror(program, "link_input_to_texture/glGenTextures")) {
+    return false;
  }

  EGLImageKHR dma_image;
@@ -171,7 +219,7 @@ static bool link_input_to_texture(ShaderProgram *program, VideoCapture *input,
                                EGL_LINUX_DRM_FOURCC_EXT,
                                input->pixelformat,
                                EGL_DMA_BUF_PLANE0_FD_EXT,
-                                swap ? input->exp_fd_swap : input->exp_fd,
+                                input->exp_fd[sub_index],
                                EGL_DMA_BUF_PLANE0_OFFSET_EXT,
                                0,
                                EGL_DMA_BUF_PLANE0_PITCH_EXT,
@@ -184,11 +232,8 @@ static bool link_input_to_texture(ShaderProgram *program, VideoCapture *input,
    return false;
  }

-  if (swap) {
-    program->dma_images_swap[input_index] = dma_image;
-  } else {
-    program->dma_images[input_index] = dma_image;
-  }
+  program->dma_images[input_index * program->sub_video_count + sub_index] =
+      dma_image;

  glActiveTexture(GL_TEXTURE0 + texture_index);
  if (check_glerror(program, "link_input_to_texture/glActiveTexture")) {
@@ -213,33 +258,35 @@ static bool link_input_to_texture(ShaderProgram *program, VideoCapture *input,
    return false;
  }

-  log_info("Texture %d linked to %s", texture_index, input->name);
+  log_info("Texture %d linked to %s[%d]", texture_index, input->name,
+           sub_index);

  return true;
 }

 static bool init_input(ShaderProgram *program, const ConfigFile *config,
-                       VideoCaptureArray *inputs, unsigned int i, bool reload) {
+                       VideoCaptureArray *inputs, unsigned int input_index,
+                       bool reload) {
  unsigned int tex_i;
+  unsigned int sub_index;
  char name[STR_LEN];

-  if (i < inputs->length && !inputs->values[i].error) {
-    snprintf(name, STR_LEN, "IN_%d_OUT", i + 1);
+  if (input_index < inputs->length && input_index < program->in_count &&
+      !inputs->values[input_index].error) {
+    snprintf(name, STR_LEN, "IN_%d_OUT", input_index + 1);
    tex_i = config_file_get_int(config, name, 0);
-    if (!link_input_to_texture(program, &inputs->values[i], i, tex_i, false,
-                               reload)) {
-      return false;
-    }
-    if (inputs->values[i].with_swap) {
-      snprintf(name, STR_LEN, "IN_%d_SWAP_OUT", i + 1);
-      tex_i = config_file_get_int(config, name, 0);
-      if (!link_input_to_texture(program, &inputs->values[i], i, tex_i, true,
-                                 reload)) {
+    for (sub_index = 0; sub_index < inputs->values[input_index].buf_count;
+         sub_index++) {
+      if (!link_input_to_texture(program, &inputs->values[input_index],
+                                 input_index, sub_index, reload)) {
        return false;
      }
    }
+    program->input_tex_map[input_index] = tex_i;
+    program->tex_map[tex_i] =
+        program->tex_count + input_index * program->sub_video_count;
  } else {
-    log_warn("Cannot link input %d", i + 1);
+    log_warn("Cannot link input %d", input_index + 1);
  }
  return true;
 }
@@ -489,13 +536,6 @@ static bool init_single_program(ShaderProgram *program, unsigned int i,
        glGetUniformLocation(program->programs[i], name);
  }

-  prefix = config_file_get_str(config, "UNIFORM_IN_SWAP_PREFIX", "iInputSwap");
-  for (unsigned int j = 0; j < program->in_count; j++) {
-    snprintf(name, STR_LEN, "%s%d", prefix, j + 1);
-    program->iinswap_locations[i * program->in_count + j] =
-        glGetUniformLocation(program->programs[i], name);
-  }
-
  prefix = config_file_get_str(config, "UNIFORM_SEED_PREFIX", "iSeed");
  for (unsigned int j = 0; j < program->frag_count; j++) {
    snprintf(name, STR_LEN, "%s%d", prefix, j + 1);
@@ -519,23 +559,24 @@ static bool init_single_program(ShaderProgram *program, unsigned int i,

  if (program->midi_lengths.length == 0) {
    index1 = 0;
-    for (unsigned int j = 0; j < state_config->midi_active_counts.length; j++) {
-      for (unsigned int k = 0; k < state_config->midi_active_counts.values[j];
+    for (unsigned int j = 0; j < state_config->group_active_counts.length;
+         j++) {
+      for (unsigned int k = 0; k < state_config->group_active_counts.values[j];
           k++) {
        program->midi_lengths.values[index1++] =
-            state_config->midi_counts.values[j];
+            state_config->group_counts.values[j];
      }
    }
    program->midi_lengths.length = index1;
  }

-  prefix = config_file_get_str(config, "UNIFORM_MIDI_PREFIX", "iMidi");
+  prefix = config_file_get_str(config, "UNIFORM_GROUP_PREFIX", "iGroup");
  index2 = 0;
-  for (unsigned int j = 0; j < state_config->midi_active_counts.length; j++) {
-    for (unsigned int k = 0; k < state_config->midi_active_counts.values[j];
+  for (unsigned int j = 0; j < state_config->group_active_counts.length; j++) {
+    for (unsigned int k = 0; k < state_config->group_active_counts.values[j];
         k++) {
      snprintf(name, STR_LEN, "%s%d_%d", prefix, j + 1, k + 1);
-      program->imidi_locations[i * program->midi_lengths.length + index2++] =
+      program->igroup_locations[i * program->midi_lengths.length + index2++] =
          glGetUniformLocation(program->programs[i], name);
    }
  }
@@ -592,8 +633,7 @@ static bool init_programs(ShaderProgram *program, const ConfigFile *config,
  return true;
 }

-static void update_viewport(ShaderProgram *program,
-                            const SharedContext *context) {
+static void update_viewport(ShaderProgram *program, const Context *context) {
  // viewport changed
  if (context->resolution[0] != program->last_resolution[0] ||
      context->resolution[1] != program->last_resolution[1]) {
@@ -604,8 +644,7 @@ static void update_viewport(ShaderProgram *program,

      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, context->tex_resolution[0],
                   context->tex_resolution[1], 0, GL_RGB, GL_UNSIGNED_BYTE, 0);
-      check_glerror_ro(
-          "update_viewport/glTexImage2D"); // TODO dont remap input textures
+      check_glerror_ro("update_viewport/glTexImage2D");
    }
    program->last_resolution[0] = context->resolution[0];
    program->last_resolution[1] = context->resolution[1];
@@ -638,7 +677,7 @@ static void write_uniform_multi_3f(GLuint location, unsigned int count,
 }

 static void use_program(const ShaderProgram *program, int i, bool output,
-                        const SharedContext *context) {
+                        const Context *context) {
  unsigned int k;
  unsigned int offset;
  unsigned int subcount;
@@ -681,17 +720,19 @@ static void use_program(const ShaderProgram *program, int i, bool output,
                     context->active[j] + 1);
  }

+#ifdef VIDEO_IN
+
  for (unsigned int j = 0; j < program->in_count; j++) {
    write_uniform_2f(program->iinres_locations[i * program->in_count + j],
                     &context->input_resolutions[j]);
    write_uniform_1i(program->iinfmt_locations[i * program->in_count + j],
-                     context->inputs.values[j].pixelformat);
+                     context->input_formats[j]);
    write_uniform_1i(program->iinfps_locations[i * program->in_count + j],
-                     context->inputs.values[j].fps);
-    write_uniform_1i(program->iinswap_locations[i * program->in_count + j],
-                     context->inputs.values[j].swap ? 1 : 0);
+                     context->input_fps[j]);
  }

+#endif /* VIDEO_IN */
+
  // set seeds uniforms
  for (unsigned int j = 0; j < program->frag_count; j++) {
    write_uniform_1i(program->iseed_locations[i * program->frag_count + j],
@@ -706,7 +747,7 @@ static void use_program(const ShaderProgram *program, int i, bool output,
  offset = 0;
  for (unsigned int j = 0; j < program->midi_lengths.length; j++) {
    write_uniform_multi_3f(
-        program->imidi_locations[i * program->midi_lengths.length + j],
+        program->igroup_locations[i * program->midi_lengths.length + j],
        program->midi_lengths.values[j], context->values + offset);
    offset += program->midi_lengths.values[j];
  }
@@ -733,7 +774,7 @@ static void use_program(const ShaderProgram *program, int i, bool output,
  // set GL_TEXTURE(X) to uniform sampler2D texX
  for (unsigned int j = 0; j < program->tex_count; j++) {
    write_uniform_1i(program->textures_locations[i * program->tex_count + j],
-                     j);
+                     program->tex_map[j]);
  }

  // draw output
@@ -741,12 +782,17 @@ static void use_program(const ShaderProgram *program, int i, bool output,
 }

 void shaders_init(ShaderProgram *program, const Project *project,
-                  const SharedContext *context, bool rebind) {
+                  const Context *context, bool rebind) {
+  unsigned int i;
  if (!rebind) {
    program->error = false;
    program->last_resolution[0] = context->resolution[0];
    program->last_resolution[1] = context->resolution[1];
    program->tex_count = config_file_get_int(&project->config, "TEX_COUNT", 9);
+    memset(program->tex_map, 0, sizeof(program->tex_map));
+    for (i = 0; i < program->tex_count; i++) {
+      program->tex_map[i] = i;
+    }
    program->frag_count = project->frag_count;
    program->frag_output_index =
        config_file_get_int(&project->config, "FRAG_OUTPUT", 1) - 1;
@@ -756,12 +802,12 @@ void shaders_init(ShaderProgram *program, const Project *project,
        config_file_get_int(&project->config, "SUB_TYPE_COUNT", 0);
    program->in_count = config_file_get_int(&project->config, "IN_COUNT", 0);
    program->sub_variant_count = project->state_config.state_max;
-    program->active_count = project->state_config.midi_active_counts.length;
+    program->active_count = project->state_config.group_active_counts.length;
    program->midi_lengths.length = 0;

 #ifdef VIDEO_IN
    memset(program->dma_images, 0, sizeof(program->dma_images));
-    memset(program->dma_images_swap, 0, sizeof(program->dma_images_swap));
+    memset(program->input_tex_map, 0, sizeof(program->input_tex_map));
 #endif /* VIDEO_IN */

    if (!init_gl(program)) {
@@ -794,23 +840,55 @@ void shaders_init(ShaderProgram *program, const Project *project,
  }
 }

-void shaders_relink_input(ShaderProgram *program, const Project *project,
-                          VideoCaptureArray *inputs, unsigned int i) {
 #ifdef VIDEO_IN
-  // shaders_free_input(program, i);
-  init_input(program, &project->config, inputs, i, true);
-#endif /* VIDEO_IN */
+
+void shaders_relink_input(ShaderProgram *program, const Project *project,
+                          VideoCaptureArray *inputs, unsigned int input_index) {
+  shaders_free_input(program, input_index);
+  init_input(program, &project->config, inputs, input_index, true);
 }

 void shaders_link_inputs(ShaderProgram *program, const Project *project,
-                         VideoCaptureArray *inputs) {
-#ifdef VIDEO_IN
-  for (unsigned int i = 0; i < program->in_count; i++) {
+                         VideoCaptureArray *inputs, unsigned int buffer_count) {
+  unsigned int i;
+  program->sub_video_count = buffer_count;
+  for (i = 0; i < program->in_count; i++) {
    init_input(program, &project->config, inputs, i, false);
  }
-#endif /* VIDEO_IN */
 }

+void shaders_free_input(ShaderProgram *program, unsigned int input_index) {
+  unsigned int sub_index;
+  for (sub_index = 0; sub_index < program->sub_video_count; sub_index++) {
+    if (program->dma_images[input_index * program->sub_video_count +
+                            sub_index] != EGL_NO_IMAGE_KHR) {
+      eglDestroyImageKHR(
+          program->egl_display,
+          program
+              ->dma_images[input_index * program->sub_video_count + sub_index]);
+      program->dma_images[input_index * program->sub_video_count + sub_index] =
+          EGL_NO_IMAGE_KHR;
+    }
+  }
+  check_eglerror_ro("shaders_free_input/eglDestroyImageKHR");
+}
+
+static void update_inputs_tex_map(ShaderProgram *program,
+                                  const Context *context) {
+  unsigned int i;
+  unsigned int tex_i;
+  for (i = 0; i < program->in_count; i++) {
+    if (context->input_formats[i] != 0) {
+      tex_i = program->input_tex_map[i];
+      program->tex_map[tex_i] = program->tex_count +
+                                i * program->sub_video_count +
+                                context->input_index[i];
+    }
+  }
+}
+
+#endif /* VIDEO_IN */
+
 void shaders_update(ShaderProgram *program, const File *fragment_shader,
                    unsigned int i, const Project *project) {
  if (compile_shader(program->fragment_shaders[i], fragment_shader->path,
@@ -821,8 +899,12 @@ void shaders_update(ShaderProgram *program, const File *fragment_shader,
  }
 }

-void shaders_compute(ShaderProgram *program, const SharedContext *context,
+void shaders_compute(ShaderProgram *program, const Context *context,
                     bool monitor, bool output_only) {
+#ifdef VIDEO_IN
+  update_inputs_tex_map(program, context);
+#endif /* VIDEO_IN */
+
  if (!output_only) {
    glBindVertexArray(program->vertex_array[0]);

@@ -859,6 +941,12 @@ void shaders_free(const ShaderProgram *program) {
  glDeleteTextures(program->tex_count, program->textures);
  check_glerror_ro("shaders_free/glDeleteTextures");

+#ifdef VIDEO_IN
+  glDeleteTextures(program->in_count * program->sub_video_count,
+                   program->textures + program->tex_count);
+  check_glerror_ro("shaders_free/glDeleteTextures");
+#endif
+
  glDeleteBuffers(1, &program->vertex_buffer);
  check_glerror_ro("shaders_free/glDeleteBuffers");
 }
@@ -867,18 +955,3 @@ void shaders_free_window(const ShaderProgram *program, bool secondary) {
  glDeleteVertexArrays(1, &program->vertex_array[secondary ? 1 : 0]);
  check_glerror_ro("shaders_free_window/glDeleteVertexArrays");
 }
-
-void shaders_free_input(ShaderProgram *program, unsigned int input_index) {
-#ifdef VIDEO_IN
-  if (program->dma_images[input_index] != EGL_NO_IMAGE_KHR) {
-    eglDestroyImageKHR(program->egl_display, program->dma_images[input_index]);
-    program->dma_images[input_index] = EGL_NO_IMAGE_KHR;
-  }
-  if (program->dma_images_swap[input_index] != EGL_NO_IMAGE_KHR) {
-    eglDestroyImageKHR(program->egl_display,
-                       program->dma_images_swap[input_index]);
-    program->dma_images_swap[input_index] = EGL_NO_IMAGE_KHR;
-  }
-  check_eglerror_ro("shaders_free_input/eglDestroyImageKHR");
-#endif /* VIDEO_IN */
-}
@@ -4,24 +4,28 @@
 #define SHADERS_H

 void shaders_init(ShaderProgram *program, const Project *project,
-                  const SharedContext *context, bool rebind);
+                  const Context *context, bool rebind);
+
+#ifdef VIDEO_IN

 void shaders_relink_input(ShaderProgram *program, const Project *project,
                          VideoCaptureArray *inputs, unsigned int i);

 void shaders_link_inputs(ShaderProgram *program, const Project *project,
-                         VideoCaptureArray *inputs);
+                         VideoCaptureArray *inputs, unsigned int buffer_count);
+
+void shaders_free_input(ShaderProgram *program, unsigned int input_index);
+
+#endif /* VIDEO_IN */

 void shaders_update(ShaderProgram *program, const File *fragment_shader,
                    unsigned int i, const Project *project);

-void shaders_compute(ShaderProgram *program, const SharedContext *context,
+void shaders_compute(ShaderProgram *program, const Context *context,
                     bool monitor, bool output_only);

 void shaders_free(const ShaderProgram *program);

 void shaders_free_window(const ShaderProgram *program, bool secondary);

-void shaders_free_input(ShaderProgram *program, unsigned int input_index);
-
 #endif /* SHADERS_H */
@@ -1,35 +0,0 @@
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include "types.h"
-
-#include "shared.h"
-
-static void *open_shared(const char *key, size_t size, int *fd) {
-  *fd = shm_open(key, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
-  ftruncate(*fd, size);
-
-  return mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, *fd, 0);
-}
-
-static void close_shared(void *shared, size_t size, int fd) {
-  munmap(shared, size);
-  close(fd);
-}
-
-SharedContext *shared_init_context(const char *key) {
-  int shared_fd;
-  SharedContext *shared;
-
-  shared = open_shared(key, sizeof(SharedContext), &shared_fd);
-
-  shared->fd = shared_fd;
-
-  return shared;
-}
-
-void shared_close_context(SharedContext *shared) {
-  close_shared(shared, sizeof(SharedContext), shared->fd);
-}
@@ -1,9 +0,0 @@
-#include "types.h"
-
-#ifndef SHARED_H
-#define SHARED_H
-
-SharedContext *shared_init_context(const char *key);
-void shared_close_context(SharedContext *shared);
-
-#endif /* SHARED_H */
@@ -1,6 +1,6 @@
 #include <log.h>
+#include <pthread.h>
 #include <stdio.h>
-#include <stdlib.h>

 #include "types.h"

@@ -13,97 +13,93 @@
 #include "state.h"
 #include "tempo.h"

-static void safe_midi_write(const MidiDevice *midi, unsigned int code,
+static void safe_midi_write(MidiDevice midi, unsigned int code,
                            unsigned char value) {
-  if (code != UNSET_MIDI_CODE) {
+  if (code != UNSET_MIDI_CODE && code < 1000) {
    midi_write(midi, code, value);
  }
 }

-static void update_page(const SharedContext *context,
-                        const StateConfig *state_config,
-                        const MidiDevice *midi) {
+static void update_page(const Context *context, StateConfig state_config,
+                        MidiDevice midi) {
  unsigned int page_item_min;
  unsigned int page_item_max;
  // SHOW PAGE
-  for (unsigned int i = 0; i < state_config->select_page_codes.length; i++) {
-    safe_midi_write(midi, state_config->select_page_codes.values[i],
+  for (unsigned int i = 0; i < state_config.select_page_codes.length; i++) {
+    safe_midi_write(midi, state_config.select_page_codes.values[i],
                    i == context->page ? MIDI_MAX : 0);
  }

  // SHOW PAGE ITEM
-  page_item_min = state_config->select_item_codes.length * context->page;
-  page_item_max = page_item_min + state_config->select_item_codes.length;
+  page_item_min = state_config.select_item_codes.length * context->page;
+  page_item_max = page_item_min + state_config.select_item_codes.length;

  if (context->state.values[context->selected] >= page_item_min &&
      context->state.values[context->selected] < page_item_max) {
-    for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
-      safe_midi_write(midi, state_config->select_item_codes.values[i],
+    for (unsigned int i = 0; i < state_config.select_item_codes.length; i++) {
+      safe_midi_write(midi, state_config.select_item_codes.values[i],
                      i == context->state.values[context->selected] -
                                  page_item_min
                          ? MIDI_MAX
                          : 0);
    }
  } else {
-    for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
-      safe_midi_write(midi, state_config->select_item_codes.values[i], 0);
+    for (unsigned int i = 0; i < state_config.select_item_codes.length; i++) {
+      safe_midi_write(midi, state_config.select_item_codes.values[i], 0);
    }
  }
 }

-static void update_active(const SharedContext *context,
-                          const StateConfig *state_config,
-                          const MidiDevice *midi) {
+static void update_active(const Context *context, StateConfig state_config,
+                          MidiDevice midi, bool beat_active) {
  unsigned int k;

-  for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
-    for (unsigned int j = 0; j < state_config->midi_active_counts.values[i];
+  for (unsigned int i = 0; i < state_config.group_active_counts.length; i++) {
+    for (unsigned int j = 0; j < state_config.group_active_counts.values[i];
         j++) {
-      k = state_config->midi_active_offsets.values[i] + j;
-      safe_midi_write(midi, state_config->midi_active_codes.values[k],
-                      context->active[i] == j ? MIDI_MAX : 0);
+      k = state_config.group_active_offsets.values[i] + j;
+      safe_midi_write(midi, state_config.group_active_codes.values[k],
+                      context->active[i] == j && beat_active ? MIDI_MAX : 0);
    }
  }
 }

-static void update_values(const SharedContext *context,
-                          const StateConfig *state_config,
-                          const MidiDevice *midi) {
+static void update_values(const Context *context, StateConfig state_config,
+                          MidiDevice midi) {
  unsigned int j;
  unsigned int k;
  unsigned int part;

-  for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
+  for (unsigned int i = 0; i < state_config.codes.length; i++) {
    j = i / 3;
-    part = arr_uint_remap_index(state_config->midi_offsets, &j);
-    k = state_config->values_offsets.values[part] +
-        context->active[part] * state_config->midi_counts.values[part] + j;
-    safe_midi_write(midi, state_config->midi_codes.values[i],
+    part = arr_uint_remap_index(state_config.group_offsets, &j);
+    k = state_config.values_offsets.values[part] +
+        context->active[part] * state_config.group_counts.values[part] + j;
+    safe_midi_write(midi, state_config.codes.values[i],
                    context->values[k][i % 3] * MIDI_MAX);
  }
 }

-static void reset(SharedContext *context) {
+static void reset(Context *context) {
  memset(context->values, 0, sizeof(context->values));
  memset(context->state.values, 0, sizeof(context->state.values));
 }

-static void randomize(SharedContext *context, const StateConfig *state_config) {
+static void randomize(Context *context, StateConfig state_config) {
  unsigned int j;
  unsigned int l;
  unsigned int part;

-  for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
+  for (unsigned int i = 0; i < state_config.codes.length; i++) {
    j = i / 3;
-    part = arr_uint_remap_index(state_config->midi_offsets, &j);
-    for (unsigned int k = 0; k < state_config->midi_active_counts.values[part];
+    part = arr_uint_remap_index(state_config.group_offsets, &j);
+    for (unsigned int k = 0; k < state_config.group_active_counts.values[part];
         k++) {
-      l = state_config->values_offsets.values[part] +
-          k * state_config->midi_counts.values[part] + j;
+      l = state_config.values_offsets.values[part] +
+          k * state_config.group_counts.values[part] + j;

-      if (arr_uint_index_of(state_config->fader_codes,
-                            state_config->midi_codes.values[i]) !=
-          ARRAY_NOT_FOUND) {
+      if (arr_uint_index_of(state_config.fader_codes,
+                            state_config.codes.values[i]) != 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;
@@ -112,12 +108,11 @@ static void randomize(SharedContext *context, const StateConfig *state_config) {
  }

  for (unsigned int i = 0; i < context->state.length; i++) {
-    context->state.values[i] = rand_uint(state_config->state_max);
+    context->state.values[i] = rand_uint(state_config.state_max);
  }
 }

-static void load_from_file(SharedContext *context,
-                           const StateConfig *state_config,
+static void load_from_file(Context *context, StateConfig state_config,
                           const char *state_file) {
  ConfigFile saved_state;
  char key[STR_LEN];
@@ -141,12 +136,12 @@ static void load_from_file(SharedContext *context,
    context->state.values[i] = config_file_get_int(&saved_state, key, 0);
  }

-  for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
+  for (unsigned int i = 0; i < state_config.group_active_counts.length; i++) {
    snprintf(key, STR_LEN, "active_%d", i);
    context->active[i] = config_file_get_int(&saved_state, key, 0);
  }

-  for (unsigned int i = 0; i < state_config->value_count; i++) {
+  for (unsigned int i = 0; i < state_config.value_count; i++) {
    snprintf(key, STR_LEN, "value_%d_x", i);
    context->values[i][0] =
        (float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
@@ -161,28 +156,25 @@ static void load_from_file(SharedContext *context,
  config_file_free(&saved_state);
 }

-static void load_from_default_file(SharedContext *context,
-                                   const StateConfig *state_config) {
+static void load_from_default_file(Context *context, StateConfig state_config) {
  char state_file[STR_LEN];

-  snprintf(state_file, STR_LEN, "%s.txt", state_config->save_file_prefix);
+  snprintf(state_file, STR_LEN, "%s.txt", state_config.save_file_prefix);

  load_from_file(context, state_config, state_file);
 }

-static void load_from_index_file(SharedContext *context,
-                                 const StateConfig *state_config,
+static void load_from_index_file(Context *context, StateConfig state_config,
                                 unsigned int index) {
  char state_file[STR_LEN];

-  snprintf(state_file, STR_LEN, "%s.%d.txt", state_config->save_file_prefix,
+  snprintf(state_file, STR_LEN, "%s.%d.txt", state_config.save_file_prefix,
           index);

  load_from_file(context, state_config, state_file);
 }

-static void save_to_file(const SharedContext *context,
-                         const StateConfig *state_config,
+static void save_to_file(const Context *context, StateConfig state_config,
                         const char *state_file) {
  StringArray lines;

@@ -203,12 +195,12 @@ static void save_to_file(const SharedContext *context,
             context->state.values[i]);
  }

-  for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
+  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]);
  }

-  for (unsigned int i = 0; i < state_config->value_count; i++) {
+  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));
    snprintf(lines.values[lines.length++], STR_LEN, "value_%d_y=%d", i,
@@ -220,21 +212,20 @@ static void save_to_file(const SharedContext *context,
  file_write(state_file, &lines);
 }

-static void save_to_default_file(const SharedContext *context,
-                                 const StateConfig *state_config) {
+static void save_to_default_file(const Context *context,
+                                 StateConfig state_config) {
  char state_file[STR_LEN];

-  snprintf(state_file, STR_LEN, "%s.txt", state_config->save_file_prefix);
+  snprintf(state_file, STR_LEN, "%s.txt", state_config.save_file_prefix);

  save_to_file(context, state_config, state_file);
 }

-static void save_to_index_file(const SharedContext *context,
-                               const StateConfig *state_config,
+static void save_to_index_file(const Context *context, StateConfig state_config,
                               unsigned int index) {
  char state_file[STR_LEN];

-  snprintf(state_file, STR_LEN, "%s.%d.txt", state_config->save_file_prefix,
+  snprintf(state_file, STR_LEN, "%s.%d.txt", state_config.save_file_prefix,
           index);

  save_to_file(context, state_config, state_file);
@@ -275,62 +266,62 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
        config_file_get_int(config, name, UNSET_MIDI_CODE);
  }

-  state_config->midi_active_counts.length = state_config->midi_counts.length =
-      state_config->midi_active_offsets.length =
-          state_config->midi_offsets.length =
+  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 =
-                  config_file_get_int(config, "MIDI_COUNT", 0);
+                  config_file_get_int(config, "GROUP_COUNT", 0);

  count = 0;
-  for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
-    snprintf(name, STR_LEN, "MIDI_%d_ACTIVE_COUNT", i + 1);
-    state_config->midi_active_counts.values[i] =
+  for (unsigned int i = 0; i < state_config->group_active_counts.length; i++) {
+    snprintf(name, STR_LEN, "GROUP_%d_ACTIVE_COUNT", i + 1);
+    state_config->group_active_counts.values[i] =
        config_file_get_int(config, name, 1);
-    state_config->midi_active_offsets.values[i] = count;
-    count += state_config->midi_active_counts.values[i];
+    state_config->group_active_offsets.values[i] = count;
+    count += state_config->group_active_counts.values[i];
  }

-  state_config->midi_active_codes.length = count;
+  state_config->group_active_codes.length = count;

-  for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
-    for (unsigned int j = 0; j < state_config->midi_active_counts.values[i];
+  for (unsigned int i = 0; i < state_config->group_active_counts.length; i++) {
+    for (unsigned int j = 0; j < state_config->group_active_counts.values[i];
         j++) {
-      snprintf(name, STR_LEN, "MIDI_%d_ACTIVE_%d", i + 1, j + 1);
-      state_config->midi_active_codes
-          .values[state_config->midi_active_offsets.values[i] + j] =
+      snprintf(name, STR_LEN, "GROUP_%d_ACTIVE_%d", i + 1, j + 1);
+      state_config->group_active_codes
+          .values[state_config->group_active_offsets.values[i] + j] =
          config_file_get_int(config, name, UNSET_MIDI_CODE);
    }
  }

  count = 0;
  offset = 0;
-  for (unsigned int i = 0; i < state_config->midi_counts.length; i++) {
-    snprintf(name, STR_LEN, "MIDI_%d_COUNT", i + 1);
-    state_config->midi_counts.values[i] = config_file_get_int(config, name, 0);
-    state_config->midi_offsets.values[i] = count;
+  for (unsigned int i = 0; i < state_config->group_counts.length; i++) {
+    snprintf(name, STR_LEN, "GROUP_%d_COUNT", i + 1);
+    state_config->group_counts.values[i] = config_file_get_int(config, name, 0);
+    state_config->group_offsets.values[i] = count;
    state_config->values_offsets.values[i] = offset;
-    offset += state_config->midi_counts.values[i] *
-              state_config->midi_active_counts.values[i];
-    count += state_config->midi_counts.values[i];
+    offset += state_config->group_counts.values[i] *
+              state_config->group_active_counts.values[i];
+    count += state_config->group_counts.values[i];
  }

  state_config->value_count = offset;

-  state_config->midi_codes.length = count * 3;
+  state_config->codes.length = count * 3;

-  for (unsigned int i = 0; i < state_config->midi_counts.length; i++) {
-    offset = state_config->midi_offsets.values[i];
-    for (unsigned int j = 0; j < state_config->midi_counts.values[i]; j++) {
-      snprintf(name, STR_LEN, "MIDI_%d_%d_X", i + 1, j + 1);
-      state_config->midi_codes.values[(offset + j) * 3] =
+  for (unsigned int i = 0; i < state_config->group_counts.length; i++) {
+    offset = state_config->group_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);
+      state_config->codes.values[(offset + j) * 3] =
          config_file_get_int(config, name, UNSET_MIDI_CODE);

-      snprintf(name, STR_LEN, "MIDI_%d_%d_Y", i + 1, j + 1);
-      state_config->midi_codes.values[(offset + j) * 3 + 1] =
+      snprintf(name, STR_LEN, "GROUP_%d_%d_Y", i + 1, j + 1);
+      state_config->codes.values[(offset + j) * 3 + 1] =
          config_file_get_int(config, name, UNSET_MIDI_CODE);

-      snprintf(name, STR_LEN, "MIDI_%d_%d_Z", i + 1, j + 1);
-      state_config->midi_codes.values[(offset + j) * 3 + 2] =
+      snprintf(name, STR_LEN, "GROUP_%d_%d_Z", i + 1, j + 1);
+      state_config->codes.values[(offset + j) * 3 + 2] =
          config_file_get_int(config, name, UNSET_MIDI_CODE);
    }
  }
@@ -351,244 +342,276 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
          config_file_get_str(config, "SAVE_FILE_PREFIX", "forge_save"),
          STR_LEN);

-  state_config->hotkey_randomize =
-      config_file_get_int(config, "HOTKEY_RANDOMIZE", 82);
-  state_config->hotkey_reset =
-      config_file_get_int(config, "HOTKEY_RESET", 1082);
-  state_config->hotkey_demo = config_file_get_int(config, "HOTKEY_DEMO", 68);
-  state_config->hotkey_autorand =
-      config_file_get_int(config, "HOTKEY_AUTORAND", 65);
-  state_config->hotkey_autorand_down =
-      config_file_get_int(config, "HOTKEY_AUTORAND_DOWN", 263);
-  state_config->hotkey_autorand_up =
-      config_file_get_int(config, "HOTKEY_AUTORAND_UP", 262);
-  state_config->hotkey_tempo_down =
-      config_file_get_int(config, "HOTKEY_TEMPO_DOWN", 264);
-  state_config->hotkey_tempo_up =
-      config_file_get_int(config, "HOTKEY_TEMPO_UP", 265);
+  state_config->key_randomize =
+      config_file_get_int(config, "KEY_RANDOMIZE", 1082);
+  state_config->key_reset = config_file_get_int(config, "KEY_RESET", 11082);
+  state_config->key_demo = config_file_get_int(config, "KEY_DEMO", 1068);
+  state_config->key_autorand =
+      config_file_get_int(config, "KEY_AUTORAND", 1065);
+  state_config->key_autorand_down =
+      config_file_get_int(config, "KEY_AUTORAND_DOWN", 1263);
+  state_config->key_autorand_up =
+      config_file_get_int(config, "KEY_AUTORAND_UP", 1262);
+  state_config->key_tempo_down =
+      config_file_get_int(config, "KEY_TEMPO_DOWN", 1264);
+  state_config->key_tempo_up =
+      config_file_get_int(config, "KEY_TEMPO_UP", 1265);

-  if (config_file_has(config, "HOTKEY_LOAD_COUNT")) {
-    state_config->hotkey_load.length =
-        config_file_get_int(config, "HOTKEY_LOAD_COUNT", 0);
+  if (config_file_has(config, "KEY_LOAD_COUNT")) {
+    state_config->key_load.length =
+        config_file_get_int(config, "KEY_LOAD_COUNT", 0);

-    for (unsigned int i = 0; i < state_config->hotkey_load.length; i++) {
-      snprintf(name, STR_LEN, "HOTKEY_LOAD_%d", i + 1);
-      state_config->hotkey_load.values[i] =
-          config_file_get_int(config, name, 0);
+    for (unsigned int i = 0; i < state_config->key_load.length; i++) {
+      snprintf(name, STR_LEN, "KEY_LOAD_%d", i + 1);
+      state_config->key_load.values[i] = config_file_get_int(config, name, 0);
    }
  } else {
-    state_config->hotkey_load.length = 10;
-    state_config->hotkey_load.values[0] = 49;
-    state_config->hotkey_load.values[1] = 50;
-    state_config->hotkey_load.values[2] = 51;
-    state_config->hotkey_load.values[3] = 52;
-    state_config->hotkey_load.values[4] = 53;
-    state_config->hotkey_load.values[5] = 54;
-    state_config->hotkey_load.values[6] = 55;
-    state_config->hotkey_load.values[7] = 56;
-    state_config->hotkey_load.values[8] = 57;
-    state_config->hotkey_load.values[9] = 48;
+    state_config->key_load.length = 10;
+    state_config->key_load.values[0] = 1049;
+    state_config->key_load.values[1] = 1050;
+    state_config->key_load.values[2] = 1051;
+    state_config->key_load.values[3] = 1052;
+    state_config->key_load.values[4] = 1053;
+    state_config->key_load.values[5] = 1054;
+    state_config->key_load.values[6] = 1055;
+    state_config->key_load.values[7] = 1056;
+    state_config->key_load.values[8] = 1057;
+    state_config->key_load.values[9] = 1048;
  }

-  if (config_file_has(config, "HOTKEY_SAVE_COUNT")) {
-    state_config->hotkey_save.length =
-        config_file_get_int(config, "HOTKEY_SAVE_COUNT", 0);
+  if (config_file_has(config, "KEY_SAVE_COUNT")) {
+    state_config->key_save.length =
+        config_file_get_int(config, "KEY_SAVE_COUNT", 0);

-    for (unsigned int i = 0; i < state_config->hotkey_save.length; i++) {
-      snprintf(name, STR_LEN, "HOTKEY_SAVE_%d", i + 1);
-      state_config->hotkey_save.values[i] =
-          config_file_get_int(config, name, 0);
+    for (unsigned int i = 0; i < state_config->key_save.length; i++) {
+      snprintf(name, STR_LEN, "KEY_SAVE_%d", i + 1);
+      state_config->key_save.values[i] = config_file_get_int(config, name, 0);
    }
  } else {
-    state_config->hotkey_save.length = 10;
-    state_config->hotkey_save.values[0] = 1049;
-    state_config->hotkey_save.values[1] = 1050;
-    state_config->hotkey_save.values[2] = 1051;
-    state_config->hotkey_save.values[3] = 1052;
-    state_config->hotkey_save.values[4] = 1053;
-    state_config->hotkey_save.values[5] = 1054;
-    state_config->hotkey_save.values[6] = 1055;
-    state_config->hotkey_save.values[7] = 1056;
-    state_config->hotkey_save.values[8] = 1057;
-    state_config->hotkey_save.values[9] = 1048;
+    state_config->key_save.length = 10;
+    state_config->key_save.values[0] = 11049;
+    state_config->key_save.values[1] = 11050;
+    state_config->key_save.values[2] = 11051;
+    state_config->key_save.values[3] = 11052;
+    state_config->key_save.values[4] = 11053;
+    state_config->key_save.values[5] = 11054;
+    state_config->key_save.values[6] = 11055;
+    state_config->key_save.values[7] = 11056;
+    state_config->key_save.values[8] = 11057;
+    state_config->key_save.values[9] = 11048;
  }
 }

-void state_midi_event(SharedContext *context, const StateConfig *state_config,
-                      const MidiDevice *midi, unsigned char code,
-                      unsigned char value, bool trace_midi) {
+static bool compute_event(Context *context, StateConfig state_config,
+                          MidiDevice midi, unsigned int code,
+                          unsigned int value) {
  unsigned int i;
  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);
+  i = arr_uint_index_of(state_config.select_page_codes, code);
  if (i != ARRAY_NOT_FOUND) {
-    found = true;
    if (value > 0) {
      context->page = i;
      update_page(context, state_config, midi);
    }
+    return true;
  }

  // TARGET CHANGE
-  i = arr_uint_index_of(state_config->select_frag_codes, code);
+  i = arr_uint_index_of(state_config.select_frag_codes, code);
  if (i != ARRAY_NOT_FOUND) {
-    found = true;
    if (value > 0) {
      context->selected = i;
      update_page(context, state_config, midi);
    }
+    return true;
  }

  // ITEM CHANGE
-  i = arr_uint_index_of(state_config->select_item_codes, code);
+  i = arr_uint_index_of(state_config.select_item_codes, code);
  if (i != ARRAY_NOT_FOUND) {
-    found = true;
    if (value > 0) {
      context->state.values[context->selected] =
-          context->page * state_config->select_item_codes.length + i;
+          context->page * state_config.select_item_codes.length + i;
      update_page(context, state_config, midi);
    }
+    return true;
  }

  // ACTIVE CHANGE
-  i = arr_uint_index_of(state_config->midi_active_codes, code);
+  i = arr_uint_index_of(state_config.group_active_codes, code);
  if (i != ARRAY_NOT_FOUND) {
-    found = true;
    if (value > 0) {
-      part = arr_uint_remap_index(state_config->midi_active_offsets, &i);
+      part = arr_uint_remap_index(state_config.group_active_offsets, &i);
      context->active[part] = i;
-      update_active(context, state_config, midi);
+      update_active(context, state_config, midi, true);
      update_values(context, state_config, midi);
    }
+    return true;
  }

  // VALUE CHANGE
-  i = arr_uint_index_of(state_config->midi_codes, code);
+  i = arr_uint_index_of(state_config.codes, code);
  if (i != ARRAY_NOT_FOUND) {
-    found = true;
    j = i / 3;
-    part = arr_uint_remap_index(state_config->midi_offsets, &j);
-    k = state_config->values_offsets.values[part] +
-        context->active[part] * state_config->midi_counts.values[part] + j;
+    part = arr_uint_remap_index(state_config.group_offsets, &j);
+    k = state_config.values_offsets.values[part] +
+        context->active[part] * state_config.group_counts.values[part] + j;

-    if (arr_uint_index_of(state_config->fader_codes, code) != ARRAY_NOT_FOUND) {
+    if (arr_uint_index_of(state_config.fader_codes, code) != ARRAY_NOT_FOUND) {
      context->values[k][i % 3] = (float)value / MIDI_MAX;
    } else if (value > 0) {
      if (context->values[k][i % 3] > 0.5) {
        context->values[k][i % 3] = 0;
-        midi_write(midi, code, 0);
+        safe_midi_write(midi, code, 0);
      } else {
        context->values[k][i % 3] = 1;
-        midi_write(midi, code, MIDI_MAX);
+        safe_midi_write(midi, code, MIDI_MAX);
      }
    }
+    return true;
  }

-  if (code == state_config->tap_tempo_code) {
-    found = true;
-    midi_write(midi, code, value);
+  // TAP TEMPO
+  if (code == state_config.tap_tempo_code) {
+    safe_midi_write(midi, code, value);
    if (value > 0) {
      tempo_tap(&context->tempo);
    }
+    return true;
  }

-  if (!found) {
-    if (trace_midi) {
-      log_trace("unknown midi: %d %d", code, value);
+  // OTHER KEYS
+  if (code == state_config.key_randomize) {
+    if (value > 0) {
+      log_info("[%d] Randomized", code);
+      randomize(context, state_config);
+      update_values(context, state_config, midi);
    }
-    midi_write(midi, code, value);
+    return true;
+  }
+
+  if (code == state_config.key_reset) {
+    if (value > 0) {
+      log_info("[%d] Reset", code);
+      reset(context);
+      update_values(context, state_config, midi);
+    }
+    return true;
+  }
+
+  if (code == state_config.key_demo) {
+    if (value > 0) {
+      log_info((context->demo ? "[%d] Demo OFF" : "[%d] Demo ON"), code);
+      context->demo = !context->demo;
+    }
+    return 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;
+    }
+    return true;
+  }
+
+  if (code == state_config.key_autorand_down) {
+    if (value > 0) {
+      if (context->auto_random_cycle > 1) {
+        context->auto_random_cycle -= 1;
+      }
+      log_info("[%d] Auto Random Cycle: %d", code, context->auto_random_cycle);
+    }
+    return true;
+  }
+
+  if (code == state_config.key_autorand_up) {
+    if (value > 0) {
+      context->auto_random_cycle += 1;
+      log_info("[%d] Auto Random Cycle: %d", code, context->auto_random_cycle);
+    }
+    return true;
+  }
+
+  if (code == state_config.key_tempo_up) {
+    if (value > 0) {
+      tempo_set(&context->tempo, context->tempo.tempo + 1);
+      log_info("[%d] Tempo: %f", code, context->tempo);
+    }
+    return true;
+  }
+
+  if (code == state_config.key_tempo_down) {
+    if (value > 0) {
+      if (context->tempo.tempo > 0) {
+        tempo_set(&context->tempo, context->tempo.tempo - 1);
+      }
+      log_info("[%d] Tempo: %f", code, context->tempo);
+    }
+    return true;
+  }
+
+  // LOAD STATE
+  i = arr_uint_index_of(state_config.key_load, code);
+
+  if (i != ARRAY_NOT_FOUND) {
+    if (value > 0) {
+      log_info("[%d] Loading state %d", code, i + 1);
+      load_from_index_file(context, state_config, i + 1);
+    }
+    return true;
+  }
+
+  // SAVE STATE
+  i = arr_uint_index_of(state_config.key_save, code);
+
+  if (i != ARRAY_NOT_FOUND) {
+    if (value > 0) {
+      log_info("[%d] Saving state %d", code, i + 1);
+      save_to_index_file(context, state_config, i + 1);
+    }
+    return true;
+  }
+
+  return false;
+}
+
+void state_midi_event(Context *context, StateConfig state_config,
+                      MidiDevice midi, unsigned char code, unsigned char value,
+                      bool trace_midi) {
+  if (!compute_event(context, state_config, midi, code, value)) {
+    log_warn("unknown midi: %d %d", code, value);
+    safe_midi_write(midi, code, value);
  } else if (trace_midi) {
    log_trace("midi: %d %d", code, value);
  }
 }

-void state_key_event(SharedContext *context, const StateConfig *state_config,
-                     unsigned int code, const MidiDevice *midi) {
-  unsigned int index;
-
-  if (code == state_config->hotkey_randomize) {
-    log_info("[%d] Randomized", code);
-    randomize(context, state_config);
-    update_values(context, state_config, midi);
-  } else if (code == state_config->hotkey_reset) {
-    log_info("[%d] Reset", code);
-    reset(context);
-    update_values(context, state_config, midi);
-  } else if (code == state_config->hotkey_demo) {
-    log_info((context->demo ? "[%d] Demo OFF" : "[%d] Demo ON"), code);
-    context->demo = !context->demo;
-  } else if (code == state_config->hotkey_autorand) {
-    log_info(
-        (context->auto_random ? "[%d] Auto Random OFF" : "[%d] Auto Random ON"),
-        code);
-    context->auto_random = !context->auto_random;
-  } else if (code == state_config->hotkey_autorand_down) {
-    if (context->auto_random_cycle > 1) {
-      context->auto_random_cycle -= 1;
-    }
-    log_info("[%d] Auto Random Cycle: %d", code, context->auto_random_cycle);
-  } else if (code == state_config->hotkey_autorand_up) {
-    context->auto_random_cycle += 1;
-    log_info("[%d] Auto Random Cycle: %d", code, context->auto_random_cycle);
-  } else if (code == state_config->hotkey_tempo_up) {
-    tempo_set(&context->tempo, context->tempo.tempo + 1);
-    log_info("[%d] Tempo: %f", code, context->tempo);
-  } else if (code == state_config->hotkey_tempo_down) {
-    if (context->tempo.tempo > 0) {
-      tempo_set(&context->tempo, context->tempo.tempo - 1);
-    }
-    log_info("[%d] Tempo: %f", code, context->tempo);
-  } else {
-    index = arr_uint_index_of(state_config->hotkey_load, code);
-
-    if (index != ARRAY_NOT_FOUND) {
-      log_info("[%d] Loading state %d", code, index + 1);
-      load_from_index_file(context, state_config, index + 1);
-      return;
-    }
-
-    index = arr_uint_index_of(state_config->hotkey_save, code);
-
-    if (index != ARRAY_NOT_FOUND) {
-      log_info("[%d] Saving state %d", code, index + 1);
-      save_to_index_file(context, state_config, index + 1);
-      return;
-    }
-
-    log_info("[%d] No hotkey defined", code);
+void state_key_event(Context *context, StateConfig state_config,
+                     unsigned int code, MidiDevice midi) {
+  if (!compute_event(context, state_config, midi, code, MIDI_MAX)) {
+    log_warn("[%d] No hotkey defined", code);
  }
 }

-bool state_background_write(SharedContext *context,
-                            const StateConfig *state_config,
-                            const MidiDevice *midi) {
-  pid_t pid;
+void *state_background_write(void *args) {
+  StateBackgroundWriteArgs *process_args = (StateBackgroundWriteArgs *)args;
+  Context *context = process_args->context;
+  StateConfig state_config = process_args->state_config;
+  MidiDevice *midi = process_args->midi;
+
  bool beat_active;
  bool last_active;
  bool change;
  bool last_change;

-  pid = fork();
-  if (pid < 0) {
-    log_error("Could not create subprocess");
-    return false;
-  }
-  if (pid == 0) {
-    return true;
-  }
-  log_info("(state) background writing started (pid: %d)", pid);
-
-  if (!midi->error) {
-    update_page(context, state_config, midi);
-    update_active(context, state_config, midi);
-    update_values(context, state_config, midi);
-  }
+  log_info("(state) background writing started");

  last_active = false;
  last_change = false;
@@ -596,12 +619,12 @@ bool state_background_write(SharedContext *context,
  while (!context->stop) {
    beat_active = tempo_progress(&context->tempo, 1.0) < 0.5;

-    if (!midi->error && beat_active != last_active) {
-      safe_midi_write(midi, state_config->tap_tempo_code,
-                      beat_active ? MIDI_MAX : 0);
+    if (midi->connected && beat_active != last_active) {
+      update_values(context, state_config, *midi);
+      update_page(context, state_config, *midi);
+      update_active(context, state_config, *midi, beat_active);

-      safe_midi_write(midi,
-                      state_config->select_frag_codes.values[context->selected],
+      safe_midi_write(*midi, state_config.tap_tempo_code,
                      beat_active ? MIDI_MAX : 0);
    }

@@ -613,25 +636,25 @@ bool state_background_write(SharedContext *context,
    if (context->auto_random && change && !last_change) {
      randomize(context, state_config);

-      update_values(context, state_config, midi);
+      update_values(context, state_config, *midi);
    }

    last_change = change;
  }

-  log_info("(state) background writing stopped by main thread (pid: %d)", pid);
-  exit(EXIT_SUCCESS);
+  log_info("(state) background writing stopped by main thread");
+  pthread_exit(NULL);
 }

-void state_init(SharedContext *context, const StateConfig *state_config,
-                bool demo, bool auto_random, unsigned int auto_random_cycles,
+void state_init(Context *context, StateConfig state_config, bool demo,
+                bool auto_random, unsigned int auto_random_cycles,
                unsigned int base_tempo, bool load_state) {
  tempo_init(&context->tempo, base_tempo);
  context->demo = demo;
  context->auto_random = auto_random;
  context->auto_random_cycle = auto_random_cycles;

-  context->state.length = state_config->select_frag_codes.length;
+  context->state.length = state_config.select_frag_codes.length;
  memset(context->state.values, 0, sizeof(context->state.values));

  if (auto_random) {
@@ -655,6 +678,6 @@ void state_init(SharedContext *context, const StateConfig *state_config,
  }
 }

-void state_save(const SharedContext *context, const StateConfig *state_config) {
+void state_save(const Context *context, StateConfig state_config) {
  save_to_default_file(context, state_config);
 }
@@ -5,21 +5,19 @@

 void state_parse_config(StateConfig *state_config, const ConfigFile *config);

-void state_midi_event(SharedContext *context, const StateConfig *state_config,
-                      const MidiDevice *midi, unsigned char code,
+void state_midi_event(Context *context, StateConfig state_config,
+                      MidiDevice midi, unsigned char code,
                      unsigned char value, bool trace_midi);

-void state_key_event(SharedContext *context, const StateConfig *state_config,
-                     unsigned int code, const MidiDevice *midi);
+void state_key_event(Context *context, StateConfig state_config,
+                     unsigned int code, MidiDevice midi);

-bool state_background_write(SharedContext *context,
-                            const StateConfig *state_config,
-                            const MidiDevice *midi);
+void *state_background_write(void *args);

-void state_init(SharedContext *context, const StateConfig *state_config,
-                bool demo, bool auto_random, unsigned int auto_random_cycles,
+void state_init(Context *context, StateConfig state_config, bool demo,
+                bool auto_random, unsigned int auto_random_cycles,
                unsigned int base_tempo, bool load_state);

-void state_save(const SharedContext *context, const StateConfig *state_config);
+void state_save(const Context *context, StateConfig state_config);

 #endif /* STATE_H */
@@ -45,12 +45,16 @@ typedef struct Parameters {
  bool demo;
  bool auto_random;
  unsigned int auto_random_cycle;
+#ifdef VIDEO_IN
  StringArray video_in;
+  unsigned int video_buffers;
  unsigned int video_size;
-  unsigned int internal_size;
  bool video_reconnect;
+#endif /* VIDEO_IN */
+  unsigned int internal_size;
  bool load_state;
  bool save_state;
+  bool midi_reconnect;
  bool trace_midi;
  bool trace_fps;
 } Parameters;
@@ -84,6 +88,7 @@ typedef struct ShaderProgram {
  GLuint vertex_array[2];

  unsigned int tex_count;
+  unsigned int tex_map[ARRAY_SIZE];
  GLuint textures[ARRAY_SIZE];

  unsigned int frag_count;
@@ -104,7 +109,6 @@ typedef struct ShaderProgram {
  GLuint iinres_locations[ARRAY_SIZE];
  GLuint iinfmt_locations[ARRAY_SIZE];
  GLuint iinfps_locations[ARRAY_SIZE];
-  GLuint iinswap_locations[ARRAY_SIZE];
  GLuint idemo_locations[ARRAY_SIZE];
  GLuint iautorand_locations[ARRAY_SIZE];
  GLuint iautorandcycle_locations[ARRAY_SIZE];
@@ -115,7 +119,7 @@ typedef struct ShaderProgram {
  GLuint iactive_locations[ARRAY_SIZE];

  UintArray midi_lengths;
-  GLuint imidi_locations[ARRAY_SIZE];
+  GLuint igroup_locations[ARRAY_SIZE];

  GLuint vpos_locations[ARRAY_SIZE];

@@ -129,40 +133,13 @@ typedef struct ShaderProgram {

  unsigned int in_count;
 #ifdef VIDEO_IN
+  unsigned int sub_video_count;
+  unsigned int input_tex_map[MAX_VIDEO];
  EGLDisplay egl_display;
  EGLImageKHR dma_images[MAX_VIDEO];
-  EGLImageKHR dma_images_swap[MAX_VIDEO];
 #endif /* VIDEO_IN */
 } ShaderProgram;

-// video.c
-
-typedef struct VideoCapture {
-  char name[STR_LEN];
-  bool error;
-  bool disconnected;
-  bool needs_reload;
-  bool with_swap;
-  bool swap;
-  unsigned int fps;
-  int fd;
-  int exp_fd;
-  int exp_fd_swap;
-  unsigned int width;
-  unsigned int height;
-  unsigned int pixelformat;
-  unsigned int bytesperline;
-#ifdef VIDEO_IN
-  struct v4l2_buffer buf;
-  struct v4l2_buffer buf_swap;
-#endif /* VIDEO_IN */
-} VideoCapture;
-
-typedef struct VideoCaptureArray {
-  VideoCapture values[MAX_VIDEO];
-  unsigned int length;
-} VideoCaptureArray;
-
 // window.c

 typedef GLFWwindow Window;
@@ -182,11 +159,16 @@ typedef struct Tempo {

 // context.c

-typedef struct SharedContext {
+typedef struct Context {
  int fd;
  vec2 resolution;
  vec2 tex_resolution;
+#ifdef VIDEO_IN
  vec2 input_resolutions[MAX_VIDEO];
+  unsigned int input_formats[MAX_VIDEO];
+  unsigned int input_fps[MAX_VIDEO];
+  unsigned int input_index[MAX_VIDEO];
+#endif /* VIDEO_IN */
  double time;
  Tempo tempo;
  double tempo_total;
@@ -200,9 +182,57 @@ typedef struct SharedContext {
  unsigned int auto_random_cycle;
  unsigned int seeds[MAX_FRAG];
  unsigned int fps;
-  VideoCaptureArray inputs;
-  bool stop;
-} SharedContext;
+  _Atomic bool stop;
+} Context;
+
+// video.c
+
+#ifdef VIDEO_IN
+
+typedef struct VideoCapture {
+  char name[STR_LEN];
+  _Atomic bool error;
+  _Atomic bool disconnected;
+  _Atomic bool needs_reload;
+  unsigned int buf_count;
+  unsigned int buf_index;
+  int fd;
+  int exp_fd[ARRAY_SIZE];
+  unsigned int width;
+  unsigned int height;
+  unsigned int pixelformat;
+  unsigned int bytesperline;
+  struct v4l2_buffer buf[ARRAY_SIZE];
+} VideoCapture;
+
+typedef struct VideoCaptureArray {
+  VideoCapture values[MAX_VIDEO];
+  unsigned int length;
+} VideoCaptureArray;
+
+typedef struct VideoBackgroundReadArgs {
+  VideoCapture *capture;
+  Context *context;
+  int input_index;
+  bool trace_fps;
+} VideoBackgroundReadArgs;
+
+#endif /* VIDEO_IN */
+
+// midi.c
+
+typedef struct MidiDevice {
+  _Atomic bool connected;
+  char name[STR_LEN];
+  snd_rawmidi_t *input;
+  snd_rawmidi_t *output;
+} MidiDevice;
+
+typedef struct MidiBackgroundListenArgs {
+  MidiDevice *device;
+  Context *context;
+  void (*event_callback)(unsigned char code, unsigned char value);
+} MidiBackgroundReadArgs;

 // state.c

@@ -212,12 +242,12 @@ typedef struct StateConfig {
  UintArray select_page_codes;
  UintArray select_item_codes;
  UintArray select_frag_codes;
-  UintArray midi_active_counts;
-  UintArray midi_active_offsets;
-  UintArray midi_active_codes;
-  UintArray midi_counts;
-  UintArray midi_offsets;
-  UintArray midi_codes;
+  UintArray group_active_counts;
+  UintArray group_active_offsets;
+  UintArray group_active_codes;
+  UintArray group_counts;
+  UintArray group_offsets;
+  UintArray codes;
  UintArray fader_codes;
  UintArray values_offsets;

@@ -227,19 +257,25 @@ typedef struct StateConfig {

  char save_file_prefix[STR_LEN];

-  unsigned int hotkey_randomize;
-  unsigned int hotkey_reset;
-  unsigned int hotkey_demo;
-  unsigned int hotkey_autorand;
-  unsigned int hotkey_autorand_up;
-  unsigned int hotkey_autorand_down;
-  unsigned int hotkey_tempo_up;
-  unsigned int hotkey_tempo_down;
+  unsigned int key_randomize;
+  unsigned int key_reset;
+  unsigned int key_demo;
+  unsigned int key_autorand;
+  unsigned int key_autorand_up;
+  unsigned int key_autorand_down;
+  unsigned int key_tempo_up;
+  unsigned int key_tempo_down;

-  UintArray hotkey_load;
-  UintArray hotkey_save;
+  UintArray key_load;
+  UintArray key_save;
 } StateConfig;

+typedef struct StateBackgroundWriteArgs {
+  Context *context;
+  StateConfig state_config;
+  MidiDevice *midi;
+} StateBackgroundWriteArgs;
+
 // timer.c

 typedef struct Timer {
@@ -260,15 +296,6 @@ typedef struct ConfigFileItem {
  char value[STR_LEN];
 } ConfigFileItem;

-// midi.c
-
-typedef struct MidiDevice {
-  bool error;
-  char name[STR_LEN];
-  snd_rawmidi_t *input;
-  snd_rawmidi_t *output;
-} MidiDevice;
-
 // project.c

 typedef struct Project {
@@ -4,8 +4,8 @@
 #include <fcntl.h>
 #include <linux/videodev2.h>
 #include <log.h>
+#include <pthread.h>
 #include <stdbool.h>
-#include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
@@ -192,14 +192,15 @@ static bool set_format(VideoCapture *video_capture) {
  return true;
 }

-static bool request_buffers(VideoCapture *video_capture) {
+static bool request_buffers(VideoCapture *video_capture,
+                            unsigned int buffer_count) {
  struct v4l2_requestbuffers reqbuf;

  memset(&reqbuf, 0, sizeof(reqbuf));

  reqbuf.type = buf_type;
  reqbuf.memory = V4L2_MEMORY_MMAP;
-  reqbuf.count = 2;
+  reqbuf.count = buffer_count;

  if (ioctl(video_capture->fd, VIDIOC_REQBUFS, &reqbuf) == -1) {
    ioctl_error(video_capture, "VIDIOC_REQBUFS",
@@ -209,7 +210,7 @@ static bool request_buffers(VideoCapture *video_capture) {

  log_info("(%s) V4L2 Buffer Count:  %d", video_capture->name, reqbuf.count);

-  video_capture->with_swap = reqbuf.count > 1;
+  video_capture->buf_count = reqbuf.count;

  return true;
 }
@@ -239,16 +240,15 @@ static bool export_buffer(VideoCapture *video_capture, int *fd,
 }

 static bool export_buffers(VideoCapture *video_capture) {
-  bool result;
+  unsigned int i;

-  result = export_buffer(video_capture, &video_capture->exp_fd, 0);
-
-  if (result && video_capture->with_swap) {
-    result =
-        result && export_buffer(video_capture, &video_capture->exp_fd_swap, 1);
+  for (i = 0; i < video_capture->buf_count; i++) {
+    if (!export_buffer(video_capture, &video_capture->exp_fd[i], i)) {
+      return false;
+    }
  }

-  return result;
+  return true;
 }

 static bool open_stream(VideoCapture *video_capture) {
@@ -274,10 +274,10 @@ static void create_image_buffer(const VideoCapture *video_capture,
 }

 static void create_image_buffers(VideoCapture *video_capture) {
-  create_image_buffer(video_capture, &video_capture->buf, 0);
+  unsigned int i;

-  if (video_capture->with_swap) {
-    create_image_buffer(video_capture, &video_capture->buf_swap, 1);
+  for (i = 0; i < video_capture->buf_count; i++) {
+    create_image_buffer(video_capture, &video_capture->buf[i], i);
  }
 }

@@ -286,31 +286,26 @@ static void close_stream(const VideoCapture *video_capture) {
 }

 static unsigned int read_video(VideoCapture *video_capture) {
-  unsigned int result;
  struct v4l2_capability cap;

-  result = 0;
+  if (ioctl(video_capture->fd, VIDIOC_DQBUF,
+            &video_capture->buf[video_capture->buf_index]) != -1) {
+    ioctl(video_capture->fd, VIDIOC_QBUF,
+          &video_capture->buf[video_capture->buf_index]);
+    video_capture->buf_index =
+        (video_capture->buf_index + 1) % video_capture->buf_count;
+    return true;
+  }

-  if ((video_capture->swap || !video_capture->with_swap) &&
-      ioctl(video_capture->fd, VIDIOC_DQBUF, &video_capture->buf) != -1) {
-    ioctl(video_capture->fd, VIDIOC_QBUF, &video_capture->buf);
-
-    result = 1;
-  } else if (!video_capture->swap && video_capture->with_swap &&
-             ioctl(video_capture->fd, VIDIOC_DQBUF, &video_capture->buf_swap) !=
-                 -1) {
-    ioctl(video_capture->fd, VIDIOC_QBUF, &video_capture->buf_swap);
-
-    result = 2;
-  } else if (ioctl(video_capture->fd, VIDIOC_QUERYCAP, &cap) == -1) {
+  if (ioctl(video_capture->fd, VIDIOC_QUERYCAP, &cap) == -1) {
    video_capture->error = true;
  }

-  return result;
+  return false;
 }

 void video_init(VideoCapture *video_capture, const char *name,
-                unsigned int preferred_height) {
+                unsigned int preferred_height, unsigned int buffer_count) {
  open_device(video_capture, name);

  if (video_capture->error) {
@@ -329,7 +324,7 @@ void video_init(VideoCapture *video_capture, const char *name,
    return;
  }

-  if (!request_buffers(video_capture)) {
+  if (!request_buffers(video_capture, buffer_count)) {
    return;
  }

@@ -344,60 +339,56 @@ void video_init(VideoCapture *video_capture, const char *name,
  create_image_buffers(video_capture);
 }

-bool video_background_read(VideoCapture *video_capture, SharedContext *context,
-                           int input_index, bool trace_fps) {
-  pid_t pid;
+void *video_background_read(void *args) {
+  VideoBackgroundReadArgs *process_args = (VideoBackgroundReadArgs *)args;
+  VideoCapture *video_capture = process_args->capture;
+  Context *context = process_args->context;
+  int input_index = process_args->input_index;
+  bool trace_fps = process_args->trace_fps;
  Timer timer;
  double fps;
-  unsigned int video_result;
+  bool result;

-  pid = fork();
-  if (pid < 0) {
-    log_error("Could not create subprocess");
-    return false;
-  }
-  if (pid == 0) {
-    return true;
-  }
-  log_info("(%s) background acquisition started (pid: %d)", video_capture->name,
-           pid);
+  log_info("(%s) background acquisition started", video_capture->name);
  timer_init(&timer, 30);

  while (!context->stop && !video_capture->error) {
-    video_result = read_video(video_capture);
-    if (video_result > 0 && timer_inc(&timer)) {
+    result = read_video(video_capture);
+
+    if (result && timer_inc(&timer)) {
      fps = timer_reset(&timer);

-      context->inputs.values[input_index].fps = (unsigned int)round(fps);
+      context->input_fps[input_index] = (unsigned int)round(fps);
      if (trace_fps) {
        log_trace("(%s) %.2ffps", video_capture->name, fps);
      }
    }
-    if (video_result > 0) {
-      video_capture->swap = video_result == 2;
+
+    if (result) {
+      context->input_index[input_index] = video_capture->buf_index;
    }
  }
  if (context->stop) {
-    log_info("(%s) background acquisition stopped by main thread (pid: %d)",
-             video_capture->name, pid);
+    log_info("(%s) background acquisition stopped by main thread",
+             video_capture->name);
  } else {
-    log_info("(%s) background acquisition stopped after error (pid: %d)",
-             video_capture->name, pid);
+    log_info("(%s) background acquisition stopped after error",
+             video_capture->name);
    video_capture->disconnected = true;
-    video_capture->pixelformat = 0;
-    video_free(video_capture);
+    context->input_formats[input_index] = 0;
  }
-  exit(context->stop ? EXIT_SUCCESS : EXIT_FAILURE);
+  pthread_exit(NULL);
 }

 void video_free(const VideoCapture *video_capture) {
+  unsigned int i;
+
  close_stream(video_capture);
-  if (video_capture->exp_fd != -1) {
-    close(video_capture->exp_fd);
-  }
-  if (video_capture->exp_fd_swap != -1) {
-    close(video_capture->exp_fd);
+
+  for (i = 0; i < video_capture->buf_count; i++) {
+    close(video_capture->exp_fd[i]);
  }
+
  if (video_capture->fd != -1) {
    close(video_capture->fd);
  }
@@ -3,12 +3,15 @@
 #ifndef VIDEO_H
 #define VIDEO_H

-void video_init(VideoCapture *video_capture, const char *name,
-                unsigned int preferred_height);
+#ifdef VIDEO_IN

-bool video_background_read(VideoCapture *video_capture, SharedContext *context,
-                           int input_index, bool trace_fps);
+void video_init(VideoCapture *video_capture, const char *name,
+                unsigned int preferred_height, unsigned int buffer_count);
+
+void *video_background_read(void *args);

 void video_free(const VideoCapture *video_capture);

+#endif /* VIDEO_IN */
+
 #endif /* VIDEO_H */
@@ -59,6 +59,9 @@ create_window(GLFWmonitor *monitor, const char *title, Window *shared_context,
  // Context related hints
  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
+#ifdef GL_DEBUG
+  glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
+#endif
  glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

  // create fullscreen window in selected monitor
@@ -120,7 +123,7 @@ void window_events() { glfwPollEvents(); }

 double window_get_time() { return glfwGetTime(); }

-void window_use(Window *window, SharedContext *context) {
+void window_use(Window *window, Context *context) {
  int width;
  int height;

@@ -154,15 +157,15 @@ unsigned int window_read_key(int key, int action, int mods) {
      key == GLFW_KEY_RIGHT_ALT) {
    return 0;
  }
-  result = key;
+  result = 1000 + key;
  if ((mods & GLFW_MOD_SHIFT) > 0) {
-    result += 1000;
-  }
-  if ((mods & GLFW_MOD_CONTROL) > 0) {
    result += 10000;
  }
-  if ((mods & GLFW_MOD_ALT) > 0) {
+  if ((mods & GLFW_MOD_CONTROL) > 0) {
    result += 100000;
  }
+  if ((mods & GLFW_MOD_ALT) > 0) {
+    result += 1000000;
+  }
  return result;
 }
@@ -15,7 +15,7 @@ void window_update_title(Window *window, const char *title);

 double window_get_time();

-void window_use(Window *window, SharedContext *context);
+void window_use(Window *window, Context *context);

 void window_refresh(Window *window);
Author	SHA1	Message	Date
klemek	1b3d6464de	forge (steel) v1.1.0 Clang Lint CI / lint-no-video (push) Successful in 1m9s Details Clang Lint CI / lint-video (push) Successful in 1m19s Details Clang Build CI / run-video (push) Successful in 1m11s Details Clang Build CI / run-no-video (push) Successful in 1m14s Details Clang Build CI / build-release (push) Successful in 1m36s Details	2026-05-15 00:20:29 +02:00
klemek	bdaf53e259	docs: add cloc	2026-05-15 00:18:06 +02:00
klemek	37a492d00d	refactor: specify number of video input buffers Clang Lint CI / lint-no-video (push) Successful in 1m5s Details Clang Build CI / run-no-video (push) Successful in 1m5s Details Clang Build CI / run-video (push) Successful in 1m5s Details Clang Build CI / build-release (push) Successful in 2m24s Details Clang Lint CI / lint-video (push) Successful in 2m22s Details	2026-05-15 00:09:51 +02:00
klemek	06d175c4fd	docs: update DEVELOPMENT.md	2026-05-14 22:52:48 +02:00
klemek	7b9f5ca032	feat: midi/keyboard cross working codes Clang Lint CI / lint-no-video (push) Successful in 1m17s Details Clang Build CI / run-video (push) Successful in 1m17s Details Clang Build CI / run-no-video (push) Successful in 1m18s Details Clang Build CI / build-release (push) Successful in 1m54s Details Clang Lint CI / lint-video (push) Successful in 1m22s Details	2026-05-14 22:52:08 +02:00
klemek	6abf050bcc	refactor: not overlaping keyboard and midi Clang Lint CI / lint-no-video (push) Successful in 1m0s Details Clang Build CI / run-no-video (push) Successful in 1m0s Details Clang Build CI / run-video (push) Successful in 1m1s Details Clang Build CI / build-release (push) Successful in 1m56s Details Clang Lint CI / lint-video (push) Successful in 1m59s Details	2026-05-14 22:27:39 +02:00
klemek	28b87d316a	feat: auto-reconnect midi Clang Lint CI / lint-no-video (push) Successful in 59s Details Clang Build CI / run-no-video (push) Successful in 59s Details Clang Build CI / run-video (push) Successful in 59s Details Clang Build CI / build-release (push) Successful in 1m31s Details Clang Lint CI / lint-video (push) Successful in 1m7s Details	2026-05-14 15:28:38 +02:00
klemek	adc520bc8b	refactor: no state_config pointer Clang Build CI / run-no-video (push) Successful in 1m2s Details Clang Lint CI / lint-no-video (push) Successful in 1m1s Details Clang Build CI / run-video (push) Successful in 1m2s Details Clang Build CI / build-release (push) Successful in 1m50s Details Clang Lint CI / lint-video (push) Successful in 1m47s Details	2026-05-14 14:24:41 +02:00
klemek	d4565fa507	feat: video auto reconnect Clang Build CI / build-release (push) Successful in 2m23s Details Clang Lint CI / lint-video (push) Successful in 2m14s Details Clang Lint CI / lint-no-video (push) Successful in 56s Details Clang Build CI / run-no-video (push) Successful in 59s Details Clang Build CI / run-video (push) Successful in 1m15s Details	2026-05-14 14:03:41 +02:00
klemek	25b7134a43	fix: add debug capabilities for gl and egl Clang Lint CI / lint-no-video (push) Failing after 44s Details Clang Build CI / run-no-video (push) Successful in 1m7s Details Clang Build CI / run-video (push) Successful in 1m7s Details Clang Build CI / build-release (push) Successful in 1m26s Details Clang Lint CI / lint-video (push) Successful in 1m46s Details	2026-05-14 00:11:49 +02:00
klemek	7da4f27e13	docs: github.com -> git.klemek.fr	2026-05-13 16:45:08 +02:00
klemek	26c90ec928	forge (steel) v1.0.2	2026-05-13 16:41:35 +02:00
klemek	e982c9214d	fix: PKGBUILD	2026-05-13 16:41:35 +02:00