ngl: Identify shaders

Add a comment with a name to each shader. That makes
identifying the shaders in apitrace much easier.

gsk/ngl/resources/blend.glsl

@@ -1,4 +1,5 @@
 // VERTEX_SHADER:
+// blend.glsl
 
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
@@ -7,6 +8,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// blend.glsl
+
 uniform int u_mode;
 uniform sampler2D u_source2;
 

gsk/ngl/resources/blit.glsl

@@ -1,4 +1,5 @@
 // VERTEX_SHADER:
+// blit.glsl
 
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
@@ -7,6 +8,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// blit.glsl
+
 void main() {
   vec4 diffuse = GskTexture(u_source, vUv);
 

gsk/ngl/resources/blur.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// blur.glsl
+
 uniform float u_blur_radius;
 uniform vec2 u_blur_size;
 uniform vec2 u_blur_dir;
@@ -25,6 +27,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// blur.glsl
+
 _IN_ vec2 pixel_step;
 _IN_ float pixels_per_side;
 _IN_ vec3 initial_gaussian;

gsk/ngl/resources/border.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// border.glsl
+
 uniform vec4 u_widths;
 uniform vec4[3] u_outline_rect;
 
@@ -22,6 +24,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// border.glsl
+
 uniform vec4[3] u_outline_rect;
 
 _IN_ vec4 final_color;

gsk/ngl/resources/color.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// color.glsl
+
 _OUT_ vec4 final_color;
 
 void main() {
@@ -8,6 +10,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// color.glsl
+
 _IN_ vec4 final_color;
 
 void main() {

gsk/ngl/resources/color_matrix.glsl

@@ -1,4 +1,5 @@
 // VERTEX_SHADER:
+// color_matrix.glsl
 
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
@@ -7,6 +8,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// color_matrix.glsl
+
 uniform mat4 u_color_matrix;
 uniform vec4 u_color_offset;
 

gsk/ngl/resources/coloring.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// coloring.glsl
+
 _OUT_ vec4 final_color;
 flat _OUT_ int use_color;
 
@@ -19,6 +21,7 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// coloring.glsl
 
 _IN_ vec4 final_color;
 flat _IN_ int use_color;

gsk/ngl/resources/conic_gradient.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER
+// conic_gradient.glsl
+
 uniform vec4 u_geometry;
 
 _NOPERSPECTIVE_ _OUT_ vec2 coord;
@@ -14,6 +16,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// conic_gradient.glsl
+
 #ifdef GSK_LEGACY
 uniform int u_num_color_stops;
 #else

gsk/ngl/resources/cross_fade.glsl

@@ -1,4 +1,5 @@
 // VERTEX_SHADER:
+// cross_fade.glsl
 
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
@@ -7,6 +8,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// cross_fade.glsl
+
 uniform float u_progress;
 uniform sampler2D u_source2;
 

gsk/ngl/resources/custom.glsl

@@ -1,10 +1,14 @@
 // VERTEX_SHADER:
+// custom.glsl
+
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
   vUv = vec2(aUv.x, aUv.y);
 }
 
 // FRAGMENT_SHADER:
+// custom.glsl
+
 // The shader supplies:
 void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv);
 

gsk/ngl/resources/inset_shadow.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// inset_shadow.glsl
+
 uniform float u_spread;
 uniform vec2 u_offset;
 uniform vec4[3] u_outline_rect;
@@ -25,6 +27,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// inset_shadow.glsl
+
 _IN_ vec4 final_color;
 _IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_outside_outline;
 _IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_inside_outline;

gsk/ngl/resources/linear_gradient.glsl

@@ -1,4 +1,5 @@
 // VERTEX_SHADER
+// linear_gradient.glsl
 uniform vec4 u_points;
 
 _NOPERSPECTIVE_ _OUT_ vec4 info;
@@ -39,6 +40,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// linear_gradient.glsl
+
 #ifdef GSK_LEGACY
 uniform int u_num_color_stops;
 #else

gsk/ngl/resources/outset_shadow.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// outset_shadow.glsl
+
 uniform vec4[3] u_outline_rect;
 
 _OUT_ vec4 final_color;
@@ -17,13 +19,15 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// outset_shadow.glsl
+
 _IN_ vec4 final_color;
 _IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_outline;
 
 void main() {
   vec2 frag = gsk_get_frag_coord();
-
   float alpha = GskTexture(u_source, vUv).a;
+
   alpha *= (1.0 -  clamp(gsk_rounded_rect_coverage(gsk_decode_rect(transformed_outline), frag), 0.0, 1.0));
 
   vec4 color = final_color * alpha;

gsk/ngl/resources/radial_gradient.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER
+// radial_gradient.glsl
+
 uniform vec4 u_geometry;
 
 _NOPERSPECTIVE_ _OUT_ vec2 coord;
@@ -16,6 +18,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// radial_gradient.glsl
+
 #ifdef GSK_LEGACY
 uniform int u_num_color_stops;
 #else

gsk/ngl/resources/repeat.glsl

@@ -1,4 +1,5 @@
 // VERTEX_SHADER:
+// repeat.glsl
 
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
@@ -7,6 +8,8 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// repeat.glsl
+
 uniform vec4 u_child_bounds;
 uniform vec4 u_texture_rect;
 

gsk/ngl/resources/unblurred_outset_shadow.glsl

@@ -1,4 +1,6 @@
 // VERTEX_SHADER:
+// unblurred_outset_shadow.glsl
+
 uniform float u_spread;
 uniform vec2 u_offset;
 uniform vec4[3] u_outline_rect;
@@ -25,6 +27,7 @@ void main() {
 }
 
 // FRAGMENT_SHADER:
+// unblurred_outset_shadow.glsl
 _IN_ vec4 final_color;
 _IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_outside_outline;
 _IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_inside_outline;