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Expect shader_primitive_index tests to fail on AMD RADV. (#2754)

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On Fedora, mesa-vulkan-drivers 22.0.3 AMD RADV POLARIS12 just colors
both the NE and SW corners red. There's no blue. (NW and SE are white,
as expected.) I suspect
this means that the primitive ID is always being passed as zero.

This is probably not just due to a difference in rasterization: I
tried enlarging the texture to 4x4 and shifting the triangles to
ensure that there was a pixel in each quadrant that was fully covered.

With Vulkan "llvmpipe (LLVM 14.0.0, 256 bits)", the unmodified test passes.

This is probably limited to Linux, but
`wgpu_tests::common::TestParameters` doesn't have a slot for that.

Fixes #2751.
This commit is contained in:
Jim Blandy 2022-06-10 12:44:25 -07:00 committed by GitHub
parent b2cc6ff185
commit 498842f993
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1 changed files with 16 additions and 2 deletions
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18
wgpu/tests/shader_primitive_index/mod.rs
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@ -51,7 +51,14 @@ fn draw() {
initialize_test(
TestParameters::default()
.test_features_limits()
.features(wgpu::Features::SHADER_PRIMITIVE_INDEX),
.features(wgpu::Features::SHADER_PRIMITIVE_INDEX)
// https://github.com/gfx-rs/wgpu/issues/2751
.specific_failure(
Some(wgt::Backends::VULKAN),
Some(0x1002), // AMD
Some("AMD RADV"),
false,
),
|ctx| {
pulling_common(ctx, &expected, |rpass| {
rpass.draw(0..6, 0..1);
@ -75,7 +82,14 @@ fn draw_indexed() {
initialize_test(
TestParameters::default()
.test_features_limits()
.features(wgpu::Features::SHADER_PRIMITIVE_INDEX),
.features(wgpu::Features::SHADER_PRIMITIVE_INDEX)
// https://github.com/gfx-rs/wgpu/issues/2751
.specific_failure(
Some(wgt::Backends::VULKAN),
Some(0x1002), // AMD
Some("AMD RADV"),
false,
),
|ctx| {
pulling_common(ctx, &expected, |rpass| {
rpass.draw_indexed(0..6, 0, 0..1);