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a1d5d102
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2025-07-22T02:15:43
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WGSL: Allow matrices as in/out vars in shaders
WGSL only supports scalars and vectors in in/out vars in shaders,
matrices will need to be broken into column vectors and then
put back together at the beginning (or end) of the shader.
Arrays also need to be split, which will be done in another CL.
Bug: angleproject:42267100
Change-Id: If1ba28c1b687ae0a3a5a554479f0ff0b5d9df39c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6777201
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Liza Burakova <liza@chromium.org>
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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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c2a9300c
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2024-09-10T19:33:33
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WGSL: Rewrite input/output variables
GLSL builtin variables and in/out variables correspond to WGSL's main
function params and return value, so rewrite them accordingly.
This is done by generating structs to use as main function params and
return values, generating similar global structs, and copying the
former into the latter so the rest of the program can just use the
variables stored in the global structs.
Bug: angleproject:42267100
Change-Id: Ic3e1196f6fb95b963ce03845096a59ea7599d608
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5835347
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
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