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Add maxAnisotropy to GPUSamplerDescriptor

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Adds some maxAnisotropy implementation.
Adds an end2end test, drawing a slanted plane with a texture of which each mipmap has a different color, with different maxAnisotropy values.
You can get an idea of what it does at https://jsfiddle.net/t64kpu81/85/
Needs further CTS.

Bug: dawn:568
Change-Id: I89ac56d8cf0fbb655358bf6effa016ddc1f8426f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/35143
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This commit is contained in:
shrekshao
2020-12-24 03:11:17 +00:00
committed by Commit Bot service account
parent c08276644f
commit f8c5e4ab74
13 changed files with 553 additions and 29 deletions
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71
src/tests/unittests/validation/SamplerValidationTests.cpp
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@@ -51,4 +51,75 @@ namespace {
}
}
TEST_F(SamplerValidationTest, InvalidFilterAnisotropic) {
wgpu::SamplerDescriptor kValidAnisoSamplerDesc = {};
kValidAnisoSamplerDesc.maxAnisotropy = 2;
kValidAnisoSamplerDesc.minFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.magFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.mipmapFilter = wgpu::FilterMode::Linear;
{
// when maxAnisotropy > 1, min, mag, mipmap filter should be linear
device.CreateSampler(&kValidAnisoSamplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.minFilter = wgpu::FilterMode::Nearest;
samplerDesc.magFilter = wgpu::FilterMode::Nearest;
samplerDesc.mipmapFilter = wgpu::FilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.minFilter = wgpu::FilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.magFilter = wgpu::FilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.mipmapFilter = wgpu::FilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
}
TEST_F(SamplerValidationTest, ValidFilterAnisotropic) {
wgpu::SamplerDescriptor kValidAnisoSamplerDesc = {};
kValidAnisoSamplerDesc.maxAnisotropy = 2;
kValidAnisoSamplerDesc.minFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.magFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.mipmapFilter = wgpu::FilterMode::Linear;
{
wgpu::SamplerDescriptor samplerDesc = {};
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 16;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 32;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0x7FFF;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0x8000;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0xFFFF;
device.CreateSampler(&samplerDesc);
}
}
} // anonymous namespace