diff options
Diffstat (limited to 'shader.h')
| -rw-r--r-- | shader.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/shader.h b/shader.h deleted file mode 100644 index 6a3340fcce69..000000000000 --- a/shader.h +++ /dev/null @@ -1,116 +0,0 @@ -#pragma once - -/* - * copied from src/compositor/meta-background-content.c - * see: https://gitlab.gnome.org/GNOME/mutter/-/blob/858b5c12b1f55043964c2e2bd30de8cf112e76d2/src/compositor/meta-background-content.c#L138 - */ -#define ROUNDED_CLIP_FRAGMENT_SHADER_FUNCS \ -"float \n"\ -"rounded_rect_coverage (vec2 p, vec4 bounds, float clip_radius) \n"\ -"{ \n"\ -" // Outside the bounds \n"\ -" if (p.x < bounds.x || p.x > bounds.z \n"\ -" || p.y < bounds.y || p.y > bounds.w ) { \n"\ -" return 0.0; \n"\ -" } \n"\ -" float center_left = bounds.x + clip_radius; \n"\ -" float center_right = bounds.z - clip_radius; \n"\ -" float center_x; \n"\ -" \n"\ -" if (p.x < center_left) \n"\ -" center_x = center_left; \n"\ -" else if (p.x > center_right) \n"\ -" center_x = center_right; \n"\ -" else \n"\ -" return 1.0; // The vast majority of pixels exit early here \n"\ -" \n"\ -" float center_top = bounds.y + clip_radius; \n"\ -" float center_bottom = bounds.w - clip_radius; \n"\ -" float center_y; \n"\ -" \n"\ -" if (p.y < center_top) \n"\ -" center_y = center_top; \n"\ -" else if (p.y > center_bottom) \n"\ -" center_y = center_bottom; \n"\ -" else \n"\ -" return 1.0; \n"\ -" \n"\ -" vec2 delta = p - vec2 (center_x, center_y); \n"\ -" float dist_squared = dot (delta, delta); \n"\ -" \n"\ -" // Fully outside the circle \n"\ -" float outer_radius = clip_radius + 0.5; \n"\ -" if (dist_squared >= (outer_radius * outer_radius)) \n"\ -" return 0.0; \n"\ -" \n"\ -" // Fully inside the circle \n"\ -" float inner_radius = clip_radius - 0.5; \n"\ -" if (dist_squared <= (inner_radius * inner_radius)) \n"\ -" return 1.0; \n"\ -" \n"\ -" \n"\ -" // Only pixels on the edge of the curve need expensive antialiasing \n"\ -" return outer_radius - sqrt (dist_squared); \n"\ -"} \n" - -#define ROUNDED_CLIP_FRAGMENT_SHADER_VARS \ -"uniform vec4 bounds; // x, y: top left; z, w: bottom right \n"\ -"uniform float clip_radius; \n"\ -"uniform vec4 inner_bounds; \n"\ -"uniform float inner_clip_radius; \n"\ -"uniform vec2 pixel_step; \n"\ -"uniform int skip; \n"\ -"uniform float border_width; \n"\ -"uniform float border_brightness; \n" - -/* used by src/meta_clip_effect.c */ -#define ROUNDED_CLIP_FRAGMENT_SHADER_DECLARATIONS \ -ROUNDED_CLIP_FRAGMENT_SHADER_VARS \ -ROUNDED_CLIP_FRAGMENT_SHADER_FUNCS - -/* used by src/meta_clip_effect.c */ -#define ROUNDED_CLIP_FRAGMENT_SHADER_CODE \ -"if (skip == 0) { \n"\ -" vec2 texture_coord = cogl_tex_coord0_in.xy / pixel_step; \n"\ -" \n"\ -" float outer_alpha = rounded_rect_coverage (texture_coord, \n"\ -" bounds, \n"\ -" clip_radius); \n"\ -" if (border_width > 0.0) { \n"\ -" float inner_alpha = rounded_rect_coverage (texture_coord, \n"\ -" inner_bounds, \n"\ -" inner_clip_radius); \n"\ -" float border_alpha = clamp (outer_alpha - inner_alpha, 0.0, 1.0) \n"\ -" * cogl_color_out.a; \n"\ -" \n"\ -" cogl_color_out *= smoothstep (0.0, 0.6, inner_alpha); \n"\ -" cogl_color_out = mix (cogl_color_out, \n"\ -" vec4(vec3(border_brightness), 1.0), \n"\ -" border_alpha); \n"\ -" } else { \n"\ -" cogl_color_out = cogl_color_out * outer_alpha; \n"\ -" } \n"\ -"} \n" - -#define ROUNDED_CLIP_FRAGMENT_SHADER_VARS_BLUR \ -"uniform vec4 bounds; // x, y: top left; w, v: bottom right \n"\ -"uniform float clip_radius; \n"\ -"uniform vec2 pixel_step; \n"\ -"uniform int skip; \n"\ -"uniform float brightness; \n" - -/* used by shell-blur-effect.c */ -#define ROUNDED_CLIP_FRAGMENT_SHADER_DECLARATIONS_BLUR \ -ROUNDED_CLIP_FRAGMENT_SHADER_VARS_BLUR \ -ROUNDED_CLIP_FRAGMENT_SHADER_FUNCS - -/* used by shell-blur-effect.c */ -#define ROUNDED_CLIP_FRAGMENT_SHADER_CODE_BLUR \ -"if (skip == 0) { \n"\ -" vec2 texture_coord = cogl_tex_coord0_in.xy / pixel_step; \n"\ -" \n"\ -" cogl_color_out *= rounded_rect_coverage (texture_coord, \n"\ -" bounds, \n"\ -" clip_radius); \n"\ -"} \n"\ -"cogl_color_out.rgb *= brightness; \n" |