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8207c548cc
This reverts most of commit f420c143e0
again because it turns out GPUs like combined images and samplers.
But: The one thing we don't revert is allowing the C code to select any
combination of sampler and image:
gsk_vulkan_render_get_image_descriptor() now takes a 2nd argument
specifying the sampler.
This allows the same flexibility as before, we just combine things
early.
This change was inspired by
https://developer.nvidia.com/blog/vulkan-dos-donts/
27 lines
828 B
GLSL
27 lines
828 B
GLSL
#version 450
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#include "common.frag.glsl"
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#include "clip.frag.glsl"
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#include "rect.frag.glsl"
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layout(location = 0) in vec2 inPos;
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layout(location = 1) in Rect inStartRect;
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layout(location = 2) in Rect inEndRect;
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layout(location = 3) in vec2 inStartTexCoord;
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layout(location = 4) in vec2 inEndTexCoord;
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layout(location = 5) flat in uint inStartTexId;
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layout(location = 6) flat in uint inEndTexId;
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layout(location = 7) in float inProgress;
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layout(location = 0) out vec4 color;
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void main()
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{
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float start_alpha = rect_coverage (inStartRect, inPos);
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vec4 start = texture (get_sampler (inStartTexId), inStartTexCoord) * start_alpha;
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float end_alpha = rect_coverage (inEndRect, inPos);
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vec4 end = texture (get_sampler (inEndTexId), inEndTexCoord) * end_alpha;
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color = clip_scaled (inPos, mix (start, end, inProgress));
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}
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