wip yuyv

Makefile.dev

@@ -1,6 +1,6 @@
 TARGET ?= forge
 INSTALL_DIR ?= $(HOME)/.local/bin
-TEST_ARGS ?= --frag=./shaders --frag-config=./config/shaders.cfg --video-in=/dev/video0 --tempo=30
+TEST_ARGS ?= --frag=./shaders --frag-config=./config/shaders.cfg --video-in=/dev/video2 --video-in=/dev/video9 --tempo=30
 SHELL := /bin/bash
 
 .PHONY: build

config/shaders.cfg

@@ -7,23 +7,25 @@ UNIFORM_SEED_PREFIX=seed
 UNIFORM_STATE_PREFIX=state
 UNIFORM_TEX_PREFIX=tex
 
-TEX_COUNT=8
-
-FRAG_COUNT=8
-FRAG_OUTPUT=7
-FRAG_MONITOR=8
-
-FRAG_1_OUT=2
-FRAG_3_OUT=3
-FRAG_2_OUT=5
-FRAG_4_OUT=6
-FRAG_5_OUT=7
-FRAG_6_OUT=0
+TEX_COUNT=10
 
 IN_COUNT=2
 
 IN_1_OUT=1
-IN_2_OUT=4
+IN_2_OUT=2
+
+FRAG_COUNT=10
+FRAG_OUTPUT=9
+FRAG_MONITOR=10
+
+FRAG_1_OUT=3
+FRAG_2_OUT=4
+FRAG_3_OUT=5
+FRAG_4_OUT=6
+FRAG_5_OUT=7
+FRAG_6_OUT=8
+FRAG_7_OUT=9
+FRAG_8_OUT=0
 
 SUB_TYPE_COUNT=3
 SUB_1_PREFIX=src_

shaders/frag0.glsl

@@ -21,12 +21,12 @@ uniform int seed6;
 uniform int seed7;
 uniform int seed8;
 
-uniform int state1_1;
-uniform int state2_1;
-uniform int state3_2;
-uniform int state4_2;
-uniform int state5_3;
+uniform int state3_1;
+uniform int state4_1;
+uniform int state5_2;
 uniform int state6_2;
+uniform int state7_3;
+uniform int state8_2;
 
 // 2. textures
 // ---------------
@@ -40,6 +40,7 @@ uniform sampler2D tex5;
 uniform sampler2D tex6;
 uniform sampler2D tex7;
 uniform sampler2D tex8;
+uniform sampler2D tex9;
 
 // 3. definitions
 // --------------
@@ -1039,7 +1040,7 @@ subroutine(src_stage_sub) vec4 src_5(vec2 vUV, int seed)
 // SRC 6 : video in 1 + thru
 subroutine(src_stage_sub) vec4 src_6(vec2 vUV, int seed)
 {
-    return src_thru(vUV, tex1, seed);
+    return src_thru(vUV, tex3, seed);
 }
 
 // SRC 7 : cp437
@@ -1157,7 +1158,7 @@ subroutine(src_stage_sub) vec4 src_10(vec2 vUV, int seed)
 // SRC 11 : video in 2 + thru
 subroutine(src_stage_sub) vec4 src_11(vec2 vUV, int seed)
 {
-    return src_thru(vUV, tex2, seed);
+    return src_thru(vUV, tex4, seed);
 }
 
 // TODO SRC 12
@@ -1239,16 +1240,16 @@ subroutine(src_stage_sub) vec4 src_16(vec2 vUV, int seed)
     int page = 0; // TODO debug page
     int selected_src = 0; // TODO debug selected
     int selected_fx = 0; // TODO debug selected
-    int selected_srca = state1_1;
-    int selected_srcb = state2_1;
-    int selected_fxa = state3_2;
-    int selected_fxb = state4_2;
-    int selected_mfx = state6_2;
-    float fxa_value = magic(seed3);
-    float fxb_value = magic(seed4);
-    float mfx_value = magic(seed6);
-    float mix_value = magic(seed5);
-    int mix_type = state5_3 % 2;
+    int selected_srca = state3_1;
+    int selected_srcb = state4_1;
+    int selected_fxa = state5_2;
+    int selected_fxb = state6_2;
+    int selected_mfx = state8_2;
+    float fxa_value = magic(seed5);
+    float fxb_value = magic(seed6);
+    float mfx_value = magic(seed8);
+    float mix_value = magic(seed7);
+    int mix_type = state7_3 % 2;
 
     // logic
 
@@ -1918,4 +1919,8 @@ subroutine(mix_stage_sub) vec4 mix_15(vec2 vUV, sampler2D ta, sampler2D tb, int
 subroutine(mix_stage_sub) vec4 mix_16(vec2 vUV, sampler2D ta, sampler2D tb, int seed)
 {
     return mix_2(vUV, ta, tb, seed);
-}
+}
+
+// TODO temp
+
+const mat4x4 yuv_to_rgb = {{1,0,1.13983,0},{1,-0.39465,-0.5806,0},{1,2.03211,0,0},{0,0,0,1}};

shaders/frag1.glsl

@@ -1,12 +1,19 @@
-// SRC A
+// VIDEO 1
 // -----------
-// IN: 0 (OUT)
-// IN: 1 (IN A)
-// OUT: 2 (FX A)
+// IN: 1 (RAW IN A)
+// OUT: 3 (IN A)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = src_stage(vUV, seed1);
+    float r, g, b, y, u, v;
+    vec4 src = texture(tex1, vec2(vUV.x, 1 - vUV.y));
+    y = src.r;
+    u = src.g - 0.5;
+    v = src.a - 0.5;
+    r = y + 1.13983 * v;
+    g = y - 0.39465 * u - 0.58060 * v;
+    b = y + 2.03211 * u;
+    fragColor = vec4(r, g, b, 1.0);
 }

shaders/frag10.glsl

@@ -0,0 +1,66 @@
+// MONITOR
+// ---
+
+in vec2 vUV;
+out vec4 fragColor;
+
+float s(vec2 uv, float x0, float y0) {
+    return step(x0, uv.x) * step(-x0 - 1, -uv.x) * step(y0, uv.y) *
+step(-y0 - 1, -uv.y);
+}
+
+const int texts[8][5] = {
+    {0x49, 0x4E, 0x20, 0x41, 0x00}, // IN A
+    {0x49, 0x4E, 0x20, 0x42, 0x00}, // IN B
+    {0x53, 0x52, 0x43, 0x20, 0x41}, // SRC A
+    {0x53, 0x52, 0x43, 0x20, 0x42}, // SRC B
+    {0x46, 0x58, 0x20, 0x41, 0x00}, // FX A
+    {0x46, 0x58, 0x20, 0x42, 0x00}, // FX B
+    {0x41, 0x2B, 0x42, 0x00, 0x00}, // A+B
+    {0x4D, 0x46, 0x58, 0x00, 0x00}, // MFX
+};
+
+void main() {
+    vec2 uv0 = vUV.st;
+    float ratio = iResolution.x / iResolution.y;
+    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
+
+    vec2 uv2 = uv0 * 3;
+    vec2 uv3 = uv1 * 60;
+
+    vec4 c = vec4(0);
+    
+    c += s(uv2,0,2) * texture(tex3, uv2);
+    c += s(uv2,1,2) * texture(tex5, uv2);
+    c += s(uv2,2,2) * texture(tex7, uv2);
+
+    c += s(uv2,0,1) * texture(tex4, uv2);
+    c += s(uv2,1,1) * texture(tex6, uv2);
+    c += s(uv2,2,1) * texture(tex8, uv2);
+
+    c += s(uv2,0,0) * src_16(mod(uv2, 1), 0);
+    c += s(uv2,1,0) * texture(tex9, uv2);
+    c += s(uv2,2,0) * texture(tex0, uv2);
+
+    float f = 0;
+    float t = 0;
+
+    f += rect(uv3, vec2(-51, 28.5), vec2(2.1, 0.7));
+    t += write_5(uv3, vec2(-53,28), texts[0]);
+    f += rect(uv3, vec2(-51, 8.5), vec2(2.1, 0.7));
+    t += write_5(uv3, vec2(-53,8), texts[1]);
+    f += rect(uv3, vec2(-14.5, 28.5), vec2(2.6, 0.7));
+    t += write_5(uv3, vec2(-17,28), texts[2]);
+    f += rect(uv3, vec2(-14.5, 8.5), vec2(2.6, 0.7));
+    t += write_5(uv3, vec2(-17,8), texts[3]);
+    f += rect(uv3, vec2(21, 28.5), vec2(2.1, 0.7));
+    t += write_5(uv3, vec2(19,28), texts[4]);
+    f += rect(uv3, vec2(21, 8.5), vec2(2.1, 0.7));
+    t += write_5(uv3, vec2(19,8), texts[5]);
+    f += rect(uv3, vec2(-15.5, -11.5), vec2(1.6, 0.7));
+    t += write_5(uv3, vec2(-17,-12), texts[6]);
+    f += rect(uv3, vec2(20.5, -11.5), vec2(1.6, 0.7));
+    t += write_5(uv3, vec2(19,-12), texts[7]);
+
+    fragColor = mix(c, vec4(f - t), f);
+}

shaders/frag2.glsl

@@ -1,12 +1,19 @@
-// SRC B
+// VIDEO 2
 // -----------
-// IN: 0 (OUT)
-// IN: 4 (IN B)
-// OUT: 5 (FX B)
+// IN: 2 (RAW IN B)
+// OUT: 4 (IN B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = src_stage(vUV, seed2);
+    float r, g, b, y, u, v;
+    vec4 src = texture(tex2, vec2(vUV.x, 1 - vUV.y));
+    y = src.r;
+    u = src.g - 0.5;
+    v = src.a - 0.5;
+    r = y + 1.13983 * v;
+    g = y - 0.39465 * u - 0.58060 * v;
+    b = y + 2.03211 * u;
+    fragColor = vec4(r, g, b, 1.0);
 }

shaders/frag3.glsl

@@ -1,12 +1,10 @@
-// FX A
-// -------------
-// IN: 2 (SRC A)
-// IN: 3 (FX A)
-// OUT: 3 (A+B)
+// SRC A
+// -----------
+// OUT: 5 (FX A)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = fx_stage(vUV, tex2, tex3, seed3);
+    fragColor = src_stage(vUV, seed3);
 }

shaders/frag4.glsl

@@ -1,12 +1,10 @@
-// FX B
-// -------------
-// IN: 5 (SRC B)
-// IN: 6 (FX B)
-// OUT: 6 (A+B)
+// SRC B
+// -----------
+// OUT: 6 (FX B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = fx_stage(vUV, tex5, tex6, seed4);
+    fragColor = src_stage(vUV, seed4);
 }

shaders/frag5.glsl

@@ -1,12 +1,12 @@
-// A+B
-// ------------
-// IN: 3 (FX A)
-// IN: 6 (FX B)
-// OUT: 7 (MFX)
+// FX A
+// -------------
+// IN: 5 (SRC A)
+// IN: 7 (FX A)
+// OUT: 7 (A+B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = mix_stage(vUV, tex3, tex6, seed5);
+    fragColor = fx_stage(vUV, tex5, tex7, seed5);
 }

shaders/frag6.glsl

@@ -1,12 +1,12 @@
-// MFX
-// ------------
-// IN: 7 (A+B)
-// IN: 0 (OUT)
-// OUT: 0 (OUT)
+// FX B
+// -------------
+// IN: 6 (SRC B)
+// IN: 8 (FX B)
+// OUT: 8 (A+B)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = fx_stage(vUV, tex7, tex0, seed6);
+    fragColor = fx_stage(vUV, tex6, tex8, seed6);
 }

shaders/frag7.glsl

@@ -1,9 +1,12 @@
-// OUT
-// ---
+// A+B
+// ------------
+// IN: 7 (FX A)
+// IN: 8 (FX B)
+// OUT: 9 (MFX)
 
 in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = texture(tex0, vUV);
+    fragColor = mix_stage(vUV, tex7, tex8, seed7);
 }

shaders/frag8.glsl

@@ -1,64 +1,12 @@
-// MONITOR
-// ---
+// MFX
+// ------------
+// IN: 9 (A+B)
+// IN: 0 (OUT)
+// OUT: 0 (OUT)
 
 in vec2 vUV;
 out vec4 fragColor;
 
-float s(vec2 uv, float x0, float y0) {
-    return step(x0, uv.x) * step(-x0 - 1, -uv.x) * step(y0, uv.y) *
-step(-y0 - 1, -uv.y);
-}
-
-const int texts[8][5] = {
-    {0x49, 0x4E, 0x20, 0x41, 0x00}, // IN A
-    {0x49, 0x4E, 0x20, 0x42, 0x00}, // IN B
-    {0x53, 0x52, 0x43, 0x20, 0x41}, // SRC A
-    {0x53, 0x52, 0x43, 0x20, 0x42}, // SRC B
-    {0x46, 0x58, 0x20, 0x41, 0x00}, // FX A
-    {0x46, 0x58, 0x20, 0x42, 0x00}, // FX B
-    {0x41, 0x2B, 0x42, 0x00, 0x00}, // A+B
-    {0x4D, 0x46, 0x58, 0x00, 0x00}, // MFX
-};
-
 void main() {
-    vec2 uv0 = vUV.st;
-    float ratio = iResolution.x / iResolution.y;
-    vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
-
-    vec2 uv2 = uv0 * 3;
-    vec2 uv3 = uv1 * 60;
-
-    vec4 c = vec4(0);
-    
-    c += s(uv2,0,2) * texture(tex1, uv2);
-    c += s(uv2,1,2) * texture(tex2, uv2);
-    c += s(uv2,2,2) * texture(tex3, uv2);
-    c += s(uv2,0,1) * texture(tex4, uv2);
-    c += s(uv2,1,1) * texture(tex5, uv2);
-    c += s(uv2,2,1) * texture(tex6, uv2);
-    c += s(uv2,0,0) * src_16(mod(uv2, 1), 0);
-    c += s(uv2,1,0) * texture(tex7, uv2);
-    c += s(uv2,2,0) * texture(tex0, uv2);
-
-    float f = 0;
-    float t = 0;
-
-    f += rect(uv3, vec2(-51, 28.5), vec2(2.1, 0.7));
-    t += write_5(uv3, vec2(-53,28), texts[0]);
-    f += rect(uv3, vec2(-51, 8.5), vec2(2.1, 0.7));
-    t += write_5(uv3, vec2(-53,8), texts[1]);
-    f += rect(uv3, vec2(-14.5, 28.5), vec2(2.6, 0.7));
-    t += write_5(uv3, vec2(-17,28), texts[2]);
-    f += rect(uv3, vec2(-14.5, 8.5), vec2(2.6, 0.7));
-    t += write_5(uv3, vec2(-17,8), texts[3]);
-    f += rect(uv3, vec2(21, 28.5), vec2(2.1, 0.7));
-    t += write_5(uv3, vec2(19,28), texts[4]);
-    f += rect(uv3, vec2(21, 8.5), vec2(2.1, 0.7));
-    t += write_5(uv3, vec2(19,8), texts[5]);
-    f += rect(uv3, vec2(-15.5, -11.5), vec2(1.6, 0.7));
-    t += write_5(uv3, vec2(-17,-12), texts[6]);
-    f += rect(uv3, vec2(20.5, -11.5), vec2(1.6, 0.7));
-    t += write_5(uv3, vec2(19,-12), texts[7]);
-
-    fragColor = mix(c, vec4(f - t), f);
+    fragColor = fx_stage(vUV, tex9, tex0, seed8);
 }

shaders/frag9.glsl

@@ -0,0 +1,9 @@
+// OUT
+// ---
+
+in vec2 vUV;
+out vec4 fragColor;
+
+void main() {
+    fragColor = texture(tex0, vUV);
+}

src/shaders.c

@@ -94,8 +94,8 @@ static void link_video_to_texture(ShaderProgram *program, VideoDevice *device,
                                         (EGLClientBuffer)NULL, attrib_list);
 
   if (device->dma_image == EGL_NO_IMAGE_KHR) {
-    log_error("(%s) eglCreateImageKHR failed", device->name);
-    program->error = true;
+    log_error("(%s) eglCreateImageKHR failed %04x", device->name,
+              eglGetError());
     return;
   }
 

src/video.c

@@ -63,8 +63,8 @@ static bool set_device_format(VideoDevice *device, unsigned int preferred_width,
   fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
   fmt.fmt.pix.width = preferred_width;
   fmt.fmt.pix.height = preferred_height;
-  fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_BGRX32;
-  fmt.fmt.pix.field = V4L2_FIELD_NONE;
+  fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
+  fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
 
   if (ioctl(device->fd, VIDIOC_S_FMT, &fmt) == -1) {
     log_warn("(%s) Format set failed", device->name);