forked from AuroraMiddleware/gtk
b0e8d8483d
This commit takes several steps towards rendering text like we want to. The creation of the cairo surface and texture is moved to the backend (in GskVulkanRenderer). We add a mask shader that is used in the next text pipeline to use the texture as a mask, like cairo_mask_surface does. There is a separate color text pipeline that uses the already existing blend shaders to use the texture as a source, like cairo_paint does. The text node api is simplified to have just a single offset, which determines the left end of the text baseline, like all our other text drawing APIs.
17 lines
352 B
GLSL
17 lines
352 B
GLSL
#version 420 core
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#include "clip.frag.glsl"
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layout(location = 0) in vec2 inPos;
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layout(location = 1) in vec2 inTexCoord;
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layout(location = 2) in vec4 inColor;
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layout(set = 0, binding = 0) uniform sampler2D inTexture;
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layout(location = 0) out vec4 color;
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void main()
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{
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color = clip (inPos, vec4(inColor.rgb, texture(inTexture, inTexCoord).a));
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}
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