debug shader

README.md

@@ -115,8 +115,8 @@ make -f Makefile.dev release-arch
   - [x] demo mode
   - [x] random seed injected into shaders
   - [x] internal texture size for speed
-  - [ ] pass state as uniform
+  - [x] pass state as uniform
-  - [ ] debug shader (and in monitor)
+  - [x] debug shader (and in monitor)
   - [ ] Clean code and fix things
 - [ ] Midi
   - [ ] Read Midi events

config/shaders.cfg

@@ -4,9 +4,10 @@ UNIFORM_FPS=iFPS
 UNIFORM_DEMO=iDemo
 UNIFORM_RESOLUTION=iResolution
 UNIFORM_SEED_PREFIX=seed
+UNIFORM_STATE_PREFIX=state
 UNIFORM_TEX_PREFIX=tex
 
-TEX_COUNT=9
+TEX_COUNT=8
 
 FRAG_COUNT=8
 FRAG_OUTPUT=7
@@ -15,7 +16,7 @@ FRAG_1_OUT=2
 FRAG_2_OUT=5
 FRAG_3_OUT=3
 FRAG_4_OUT=6
-FRAG_5_OUT=8
+FRAG_5_OUT=7
 FRAG_6_OUT=0
 
 SUB_TYPE_COUNT=3

shaders/frag0.glsl

@@ -21,6 +21,13 @@ 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 state6_2;
+
 // 2. textures
 // ---------------
 
@@ -166,8 +173,8 @@ float cosTime(float k)
 vec2 magic_f(vec2 F, vec3 B, float i)
 {
     return vec2(
-        mix(F.x, randTime(i + 1), B.z + iDemo),
+        mix(F.x, randTime(i + 1), min(1, B.z + iDemo)),
-        mix(F.y, randTime(i + 2), B.z + iDemo)
+        mix(F.y, randTime(i + 2), min(1, B.z + iDemo))
     );
 }
 
@@ -179,8 +186,8 @@ vec2 magic_f(float i)
 vec3 magic_b(vec3 B, float i)
 {
     return vec3(
-        mix(B.x, step(0.2, randTime(i + 3)), B.z + iDemo),
+        mix(B.x, step(0.2, randTime(i + 3)), min(1, B.z + iDemo)),
-        mix(B.y, step(0.5, randTime(i + 4)), B.z + iDemo),
+        mix(B.y, step(0.5, randTime(i + 4)), min(1, B.z + iDemo)),
         min(1, B.z + iDemo)
     );
 }
@@ -810,7 +817,7 @@ int read(sampler2D tex, vec2 uv, float k, int d, float t)
     float inv_k = 1 / k;
     vec2 tex_uv = floor(uv * k) * inv_k;
     tex_uv += vec2(d % 2, floor(d * 0.5)) * 0.5 * inv_k;
-    return // TODO threshold
+    return
         ((mean(reframe(tex, tex_uv + vec2(0, 3) * inv_k * 0.125)) > t) ? 1 : 0) + 
         ((mean(reframe(tex, tex_uv + vec2(0, 2) * inv_k * 0.125)) > t) ? 2 : 0) +
         ((mean(reframe(tex, tex_uv + vec2(0, 1) * inv_k * 0.125)) > t) ? 4 : 0) +
@@ -1237,13 +1244,89 @@ subroutine(src_stage_sub) vec4 src_16(vec2 vUV, int seed)
     float ratio = iResolution.x / iResolution.y;
     vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
 
-    // controls
+    // inputs
+
+    int selected = 0; // TODO debug selected
+    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;
 
     // logic
 
-    // TODO tmp
+    vec2 uv2 = uv1;
+
+    uv2 *= 10;
+    uv2.x -= 0.5;
+    uv2.y += 0.5;
+
+    // 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(7.5, 0), vec2(1.5, 0.1)) +
+        h_rect(uv2, vec2(-9, 5.1), vec2(1), 0.1);
+
+    // show selected src/fx
+    f += char_at(uv2, vec2(-5.4, 1.45), hex_chars[selected_srca]);
+    f += char_at(uv2, vec2(-5.4, -2.55), hex_chars[selected_srcb]);
+    f += char_at(uv2, vec2(-2.4, 1.45), hex_chars[selected_fxa]);
+    f += char_at(uv2, vec2(4.6, -0.55), hex_chars[selected_fxb]);
+    f += char_at(uv2, vec2(-2.4, -2.55), hex_chars[selected_mfx]);
+
+    // show current selected
+    f += selected == 0 ? h_rect(uv2, vec2(-5, 2), vec2(1.2), 0.1) : 0;
+    f += selected == 1 ? h_rect(uv2, vec2(-5, -2), vec2(1.2), 0.1) : 0;
+    f += selected == 2 ? h_rect(uv2, vec2(-2, 2), vec2(1.2), 0.1) : 0;
+    f += selected == 3 ? h_rect(uv2, vec2(5, 0), vec2(1.2), 0.1) : 0;
+    f += selected == 4 ? h_rect(uv2, vec2(-2, -2), vec2(1.2), 0.1) : 0;
+
+    // show selected src/fx
+    f += selected_src == 0 ? h_rect(uv2, vec2(-5, 0.8), vec2(1, 0), 0.1) : 0;
+    f += selected_src == 1 ? h_rect(uv2, vec2(-5, -3.2), vec2(1, 0), 0.1) : 0;
+    f += selected_fx == 2 ? h_rect(uv2, vec2(-2, 0.8), vec2(1.2, 0), 0.1) : 0;
+    f += selected_fx == 3 ? h_rect(uv2, vec2(5, -1.2), vec2(1, 0), 0.1) : 0;
+    f += selected_fx == 4 ? h_rect(uv2, vec2(-2, -3.2), vec2(1, 0), 0.1) : 0;
+
+    // show inputs / feedback
+    f += (selected_srca == 5 || selected_srca == 10) ? rect(uv2, vec2(-8, 2), vec2(2, 0.1)) : 0;
+    f += (selected_srca == 0 || selected_srca % 5 != 0 && selected_srca >= 8) ? rect(uv2, vec2(-6.5, 2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, 4), vec2(7, 0.1)) + rect(uv2, vec2(-7, 3), vec2(0.1, 1.1)) + rect(uv2, vec2(7, 2), vec2(0.1, 2.1)) : 0;
+    f += (selected_srcb == 5 || selected_srcb == 10) ? rect(uv2, vec2(-8, -2), vec2(2, 0.1)) : 0;
+    f += (selected_srcb == 0 || selected_srcb % 5 != 0 && selected_srcb >= 8) ? rect(uv2, vec2(-6.5, -2), vec2(0.5, 0.1)) + rect(uv2, vec2(0, -4), vec2(7, 0.1)) + rect(uv2, vec2(-7, -3), vec2(0.1, 1.1)) + rect(uv2, vec2(7, -2), vec2(0.1, 2.1)) : 0;
+
+    // show page
+    f += char_at(uv2, vec2(-9.2, 4.3), hex_chars[page]);
+
+    // show fx values
+    f = mix(f, 1 - f, rect(uv2, vec2(-2, 1.1 + 0.9 * fxa_value), vec2(0.9, 0.9 * fxa_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(5, -0.9 + 0.9 * fxb_value), vec2(0.9, 0.9 * fxb_value)));
+    f = mix(f, 1 - f, rect(uv2, vec2(-2, -2.9 + 0.9 * mfx_value), vec2(0.9, 0.9 * mfx_value)));
+
+    // show mix
+    f += char_at(uv2, vec2(1.55, -0.6), mix_type > 0 ? 0x4B : 0x4D);
+    f = mix(f, 1 - f, rect(uv2, vec2(2, -0.9 + 0.9 * mix_value), vec2(0.9, 0.9 * mix_value)));
     
-    return texture(tex0, vUV);
+    return vec4(f);
 }
 
 // 6. effects
@@ -1706,7 +1789,7 @@ subroutine(mix_stage_sub) vec4 mix_1(vec2 vUV, sampler2D ta, sampler2D tb, int s
 
     // controls
 
-    float mix_src = magic(seed + 10);
+    float mix_src = magic(seed);
 
     // logic
 
@@ -1725,7 +1808,7 @@ subroutine(mix_stage_sub) vec4 mix_2(vec2 vUV, sampler2D ta, sampler2D tb, int s
 
     // controls
 
-    float mix_src = magic(seed + 10);
+    float mix_src = magic(seed);
 
     // logic
     

shaders/frag6.glsl

@@ -1,6 +1,6 @@
 // MFX
 // ------------
-// IN: 8 (A+B)
+// IN: 7 (A+B)
 // IN: 0 (OUT)
 // OUT: 0 (OUT)
 
@@ -8,5 +8,5 @@ in vec2 vUV;
 out vec4 fragColor;
 
 void main() {
-    fragColor = fx_stage(vUV, tex8, tex0, seed6);
+    fragColor = fx_stage(vUV, tex7, tex0, seed6);
 }

shaders/frag8.glsl

@@ -26,15 +26,15 @@ void main() {
     vec2 uv1 = (uv0 - .5) * vec2(ratio, 1);
 
     vec2 uv2 = uv0 * 3;
-    vec2 uv3 = uv1 * 30;
+    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(tex7, uv2);
+    c += s(uv2,0,1) * src_16(mod(uv2, 1), 0);
-    c += s(uv2,1,1) * texture(tex8, uv2);
+    c += s(uv2,1,1) * texture(tex7, uv2);
     c += s(uv2,2,1) * texture(tex0, uv2);
     c += s(uv2,0,0) * texture(tex4, uv2);
     c += s(uv2,1,0) * texture(tex5, uv2);
@@ -42,14 +42,14 @@ void main() {
 
     float t = 0;
 
-    t += write_5(uv3, vec2(-26.5,13.5), texts[0]);
+    t += write_5(uv3, vec2(-53,28), texts[0]);
-    t += write_5(uv3, vec2(-26.5,-6.5), texts[1]);
+    t += write_5(uv3, vec2(-53,-12), texts[1]);
-    t += write_5(uv3, vec2(-8.5,13.5), texts[2]);
+    t += write_5(uv3, vec2(-17,28), texts[2]);
-    t += write_5(uv3, vec2(-8.5,-6.5), texts[3]);
+    t += write_5(uv3, vec2(-17,-12), texts[3]);
-    t += write_5(uv3, vec2(9.5,13.5), texts[4]);
+    t += write_5(uv3, vec2(19,28), texts[4]);
-    t += write_5(uv3, vec2(9.5,-6.5), texts[5]);
+    t += write_5(uv3, vec2(19,-12), texts[5]);
-    t += write_5(uv3, vec2(-8.5,3.5), texts[6]);
+    t += write_5(uv3, vec2(-17,8), texts[6]);
-    t += write_5(uv3, vec2(9.5,3.5), texts[7]);
+    t += write_5(uv3, vec2(19,8), texts[7]);
 
     fragColor = mix(c, 1 - c, t);
 }

src/shaders.c

@@ -141,6 +141,7 @@ static void init_single_program(ShaderProgram *program, unsigned int i,
   char *tex_prefix;
   char *sub_prefix;
   char *seed_prefix;
+  char *state_prefix;
 
   program->programs[i] = glCreateProgram();
 
@@ -173,6 +174,18 @@ static void init_single_program(ShaderProgram *program, unsigned int i,
         glGetUniformLocation(program->programs[i], name);
   }
 
+  state_prefix =
+      config_file_get_str(shader_config, "UNIFORM_STATE_PREFIX", "state");
+  for (j = 0; j < program->frag_count; j++) {
+    for (k = 0; k < program->sub_type_count; k++) {
+      sprintf(name, "%s%d_%d", state_prefix, j + 1, k + 1);
+      program
+          ->istate_locations[i * program->frag_count * program->sub_type_count +
+                             j * program->sub_type_count + k] =
+          glGetUniformLocation(program->programs[i], name);
+    }
+  }
+
   for (j = 0; j < program->sub_type_count; j++) {
     sprintf(name, "SUB_%d_PREFIX", j + 1);
     sub_prefix = config_file_get_str(shader_config, name, 0);
@@ -217,6 +230,8 @@ static void init_programs(ShaderProgram *program, ConfigFile shader_config) {
   program->idemo_locations = malloc(program->frag_count * sizeof(GLuint));
   program->iseed_locations =
       malloc(program->frag_count * program->frag_count * sizeof(GLuint));
+  program->istate_locations = malloc(program->frag_count * program->frag_count *
+                                     program->sub_type_count * sizeof(GLuint));
   program->vpos_locations = malloc(program->frag_count * sizeof(GLuint));
   program->textures_locations =
       malloc(program->frag_count * program->tex_count * sizeof(GLuint));
@@ -335,12 +350,19 @@ static void use_program(ShaderProgram program, int i, bool output,
                 (const GLint)context.seeds[j]);
   }
 
-  // set subroutines for fragment
+  // set subroutines for fragment and update state uniforms
   for (j = 0; j < program.sub_type_count; j++) {
     k = context.sub_state[i * program.sub_type_count + j];
     subroutines[j] = program.sub_locations[i * program.sub_type_count *
                                                program.sub_variant_count +
                                            j * program.sub_variant_count + k];
+    for (k = 0; k < program.frag_count; k++) {
+      glUniform1i(
+          program.istate_locations[i * program.frag_count *
+                                       program.sub_type_count +
+                                   k * program.sub_type_count + j],
+          (const GLint)context.sub_state[k * program.sub_type_count + j]);
+    }
   }
 
   glUniformSubroutinesuiv(GL_FRAGMENT_SHADER, program.sub_type_count,

src/types.h

@@ -60,6 +60,7 @@ typedef struct ShaderProgram {
   GLuint *ires_locations;
   GLuint *idemo_locations;
   GLuint *iseed_locations;
+  GLuint *istate_locations;
 
   GLuint *vpos_locations;