06d5c8e72d
Instead of using uniforms for color used in multiple programs, pass it as vertex attributes. This will let us batch more draw calls, since we don't have to change uniforms so often. In particular, for syntax-highlighted text.
72 lines
2.1 KiB
GLSL
72 lines
2.1 KiB
GLSL
uniform mat4 u_projection;
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uniform mat4 u_modelview;
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uniform float u_alpha;
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#if defined(GSK_GLES) || defined(GSK_LEGACY)
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attribute vec2 aPosition;
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attribute vec2 aUv;
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attribute vec4 aColor;
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_OUT_ vec2 vUv;
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#else
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_IN_ vec2 aPosition;
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_IN_ vec2 aUv;
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_IN_ vec4 aColor;
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_OUT_ vec2 vUv;
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#endif
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// amount is: top, right, bottom, left
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GskRoundedRect
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gsk_rounded_rect_shrink (GskRoundedRect r, vec4 amount)
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{
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vec4 new_bounds = r.bounds + vec4(1.0,1.0,-1.0,-1.0) * amount.wxyz;
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vec4 new_corner_points1 = r.corner_points1;
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vec4 new_corner_points2 = r.corner_points2;
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if (r.corner_points1.xy == r.bounds.xy) new_corner_points1.xy = new_bounds.xy;
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if (r.corner_points1.zw == r.bounds.zy) new_corner_points1.zw = new_bounds.zy;
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if (r.corner_points2.xy == r.bounds.zw) new_corner_points2.xy = new_bounds.zw;
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if (r.corner_points2.zw == r.bounds.xw) new_corner_points2.zw = new_bounds.xw;
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return GskRoundedRect (new_bounds, new_corner_points1, new_corner_points2);
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}
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void
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gsk_rounded_rect_offset(inout GskRoundedRect r, vec2 offset)
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{
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r.bounds.xy += offset;
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r.bounds.zw += offset;
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r.corner_points1.xy += offset;
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r.corner_points1.zw += offset;
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r.corner_points2.xy += offset;
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r.corner_points2.zw += offset;
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}
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void gsk_rounded_rect_transform(inout GskRoundedRect r, mat4 mat)
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{
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r.bounds.xy = (mat * vec4(r.bounds.xy, 0.0, 1.0)).xy;
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r.bounds.zw = (mat * vec4(r.bounds.zw, 0.0, 1.0)).xy;
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r.corner_points1.xy = (mat * vec4(r.corner_points1.xy, 0.0, 1.0)).xy;
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r.corner_points1.zw = (mat * vec4(r.corner_points1.zw, 0.0, 1.0)).xy;
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r.corner_points2.xy = (mat * vec4(r.corner_points2.xy, 0.0, 1.0)).xy;
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r.corner_points2.zw = (mat * vec4(r.corner_points2.zw, 0.0, 1.0)).xy;
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}
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#if defined(GSK_LEGACY)
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// Can't have out or inout array parameters...
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#define gsk_rounded_rect_encode(r, uni) uni[0] = r.bounds; uni[1] = r.corner_points1; uni[2] = r.corner_points2;
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#else
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void gsk_rounded_rect_encode(GskRoundedRect r, out _GSK_ROUNDED_RECT_UNIFORM_ out_r)
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{
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#if defined(GSK_GLES)
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out_r[0] = r.bounds;
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out_r[1] = r.corner_points1;
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out_r[2] = r.corner_points2;
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#else
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out_r = r;
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#endif
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}
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#endif
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