forked from AuroraMiddleware/gtk
900a4e4d31
Move the resources of each renderer to its subdirectory. We've previously done that for the ngl renderer, but it is better to be consistent and do it for all the renderers.
42 lines
1.3 KiB
GLSL
42 lines
1.3 KiB
GLSL
// VERTEX_SHADER:
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uniform vec4 u_color;
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uniform float u_spread;
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uniform vec2 u_offset;
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uniform vec4[3] u_outline_rect;
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_OUT_ vec4 final_color;
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_OUT_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_outside_outline;
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_OUT_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_inside_outline;
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void main() {
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gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
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final_color = gsk_premultiply(u_color) * u_alpha;
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GskRoundedRect outside = gsk_create_rect(u_outline_rect);
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GskRoundedRect inside = gsk_rounded_rect_shrink(outside, vec4(u_spread));
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gsk_rounded_rect_offset(inside, u_offset);
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gsk_rounded_rect_transform(outside, u_modelview);
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gsk_rounded_rect_transform(inside, u_modelview);
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gsk_rounded_rect_encode(outside, transformed_outside_outline);
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gsk_rounded_rect_encode(inside, transformed_inside_outline);
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}
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// FRAGMENT_SHADER:
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_IN_ vec4 final_color;
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_IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_outside_outline;
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_IN_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_inside_outline;
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void main() {
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vec2 frag = gsk_get_frag_coord();
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float alpha = clamp(gsk_rounded_rect_coverage(gsk_decode_rect(transformed_outside_outline), frag) -
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gsk_rounded_rect_coverage(gsk_decode_rect(transformed_inside_outline), frag),
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0.0, 1.0);
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gskSetOutputColor(final_color * alpha);
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}
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