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Split ComparisonSampler tests with/without normalized depth textures
Depth textures outside the 0-1 range are clamped on OpenGL unless we reinterpret contents as R32 Bug: dawn:367 Change-Id: Ifb539689c55bb5a4a16427025c9f0d97c4156c6b Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/20823 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Stephen White <senorblanco@chromium.org>
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@ -13,11 +13,25 @@
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// limitations under the License.
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#include "common/Assert.h"
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#include "common/Constants.h"
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#include "tests/DawnTest.h"
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#include "utils/ComboRenderPipelineDescriptor.h"
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#include "utils/WGPUHelpers.h"
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namespace {
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constexpr wgpu::CompareFunction kCompareFunctions[] = {
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wgpu::CompareFunction::Never,
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wgpu::CompareFunction::Less,
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wgpu::CompareFunction::LessEqual,
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wgpu::CompareFunction::Greater,
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wgpu::CompareFunction::GreaterEqual,
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wgpu::CompareFunction::Equal,
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wgpu::CompareFunction::NotEqual,
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wgpu::CompareFunction::Always,
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};
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} // anonymous namespace
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class ComparisonSamplerTest : public DawnTest {
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protected:
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void TestSetUp() override {
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@ -135,33 +149,22 @@ class ComparisonSamplerTest : public DawnTest {
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break;
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}
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wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
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// Set the input depth texture to the provided texture value
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if (textureValue >= 0.0 && textureValue <= 1.0) {
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// For valid loadOp values, use a loadOp.
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utils::ComboRenderPassDescriptor passDescriptor({}, mInputTexture.CreateView());
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passDescriptor.cDepthStencilAttachmentInfo.clearDepth = textureValue;
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mTextureUploadBuffer.SetSubData(0, sizeof(float), &textureValue);
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wgpu::RenderPassEncoder pass = commandEncoder.BeginRenderPass(&passDescriptor);
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pass.EndPass();
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} else {
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if (IsOpenGL()) {
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// TODO(enga): We don't support copying to depth textures yet on OpenGL.
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return;
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}
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mTextureUploadBuffer.SetSubData(0, sizeof(float), &textureValue);
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wgpu::BufferCopyView bufferCopyView;
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bufferCopyView.buffer = mTextureUploadBuffer;
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bufferCopyView.offset = 0;
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bufferCopyView.rowPitch = kTextureBytesPerRowAlignment;
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bufferCopyView.imageHeight = 1;
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wgpu::TextureCopyView textureCopyView;
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textureCopyView.texture = mInputTexture;
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textureCopyView.origin = {0, 0, 0};
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wgpu::Extent3D copySize = {1, 1, 1};
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commandEncoder.CopyBufferToTexture(&bufferCopyView, &textureCopyView, ©Size);
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}
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wgpu::BufferCopyView bufferCopyView = {};
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bufferCopyView.buffer = mTextureUploadBuffer;
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bufferCopyView.offset = 0;
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bufferCopyView.bytesPerRow = kTextureBytesPerRowAlignment;
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wgpu::TextureCopyView textureCopyView;
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textureCopyView.texture = mInputTexture;
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textureCopyView.origin = {0, 0, 0};
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wgpu::Extent3D copySize = {1, 1, 1};
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wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
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commandEncoder.CopyBufferToTexture(&bufferCopyView, &textureCopyView, ©Size);
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// Render into the output texture
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{
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@ -193,17 +196,26 @@ class ComparisonSamplerTest : public DawnTest {
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TEST_P(ComparisonSamplerTest, CompareFunctions) {
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// Test a "normal" ref value between 0 and 1; as well as negative and > 1 refs.
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for (float compareRef : {-0.1, 0.4, 1.2}) {
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// Test negative, 0, below the ref, equal to, above the ref, 1, and above 1.
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std::vector<float> values = {-0.2, 0.0, 0.3, 0.4, 0.5, 1.0, 1.3};
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// Test 0, below the ref, equal to, above the ref, and 1.
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for (wgpu::CompareFunction f : kCompareFunctions) {
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DoCompareRefTest(compareRef, f, {0.0, 0.3, 0.4, 0.5, 1.0});
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}
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}
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}
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DoCompareRefTest(compareRef, wgpu::CompareFunction::Never, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::Less, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::LessEqual, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::Greater, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::GreaterEqual, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::Equal, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::NotEqual, values);
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DoCompareRefTest(compareRef, wgpu::CompareFunction::Always, values);
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// Test that sampling with all of the compare functions works, when the texture contents
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// are outside the 0-1 range.
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TEST_P(ComparisonSamplerTest, CompareFunctionsUnnormalizedContents) {
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// TODO(enga): Copies to depth textures are clamped. Unless we reinterpret
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// contents as R32F.
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DAWN_SKIP_TEST_IF(IsOpenGL());
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// Test a "normal" ref value between 0 and 1; as well as negative and > 1 refs.
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for (float compareRef : {-0.1, 0.4, 1.2}) {
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// Test negative, and above 1.
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for (wgpu::CompareFunction f : kCompareFunctions) {
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DoCompareRefTest(compareRef, f, {-0.2, 1.3});
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}
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}
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}
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