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4b69ba93
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2025-04-28T16:45:56
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WGPU: upload texture bind groups and configured samplers
GLSL samplers are split into separate sampler/texture variables
in WGSL. Before this CL, the WGSL translator generated shaders
that look like:
@group(1) @binding(@@@@@@) var ANGLE_sampler_samp2D :
sampler;
@group(1) @binding(@@@@@@) var ANGLE_texture_samp2D :
texture_2d<f32>;
@group(1) @binding(@@@@@@) var ANGLE_sampler_sampCube :
sampler;
@group(1) @binding(@@@@@@) var ANGLE_texture_sampCube :
texture_cube<f32>;
This CL replaces those with actual binding numbers
@group(1) @binding(0) var ANGLE_sampler_samp2D :
sampler;
@group(1) @binding(1) var ANGLE_texture_samp2D :
texture_2d<f32>;
...
Such that @binding(n*2) is the WGSL sampler variable corresponding
to the n-th GLSL sampler and @binding(n*2+1) is the WGSL texture
variable corresponding to the n-th GLSL sampler.
This CL then generates binding group layouts matching the above,
and uploads textures and configured samplers in bind groups.
This makes some of the deqp_gles2 tests 2d texture tests pass,
though some fail because they need a flipped y coordinate.
Not yet supported:
1. arrays of samplers
2. shadow samplers
3. cube textures
Bug: angleproject:389145696
Change-Id: I2ab18ae5ebb4d1289101266bd9451576aa04ce2a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6382272
Reviewed-by: Liza Burakova <liza@chromium.org>
Auto-Submit: Matthew Denton <mpdenton@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
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