305 lines
13 KiB
C++
305 lines
13 KiB
C++
// Copyright 2020 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dawn/tests/unittests/validation/ValidationTest.h"
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#include "dawn/utils/ComboRenderBundleEncoderDescriptor.h"
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#include "dawn/utils/ComboRenderPipelineDescriptor.h"
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#include "dawn/utils/WGPUHelpers.h"
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class IndexBufferValidationTest : public ValidationTest {
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protected:
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wgpu::RenderPipeline MakeTestPipeline(wgpu::IndexFormat format,
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wgpu::PrimitiveTopology primitiveTopology) {
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wgpu::ShaderModule vsModule = utils::CreateShaderModule(device, R"(
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@stage(vertex) fn main() -> @builtin(position) vec4<f32> {
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return vec4<f32>(0.0, 0.0, 0.0, 1.0);
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})");
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wgpu::ShaderModule fsModule = utils::CreateShaderModule(device, R"(
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@stage(fragment) fn main() -> @location(0) vec4<f32> {
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return vec4<f32>(0.0, 1.0, 0.0, 1.0);
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})");
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utils::ComboRenderPipelineDescriptor descriptor;
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descriptor.vertex.module = vsModule;
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descriptor.cFragment.module = fsModule;
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descriptor.primitive.topology = primitiveTopology;
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descriptor.primitive.stripIndexFormat = format;
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descriptor.cTargets[0].format = wgpu::TextureFormat::RGBA8Unorm;
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return device.CreateRenderPipeline(&descriptor);
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}
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};
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// Test that IndexFormat::Undefined is disallowed.
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TEST_F(IndexBufferValidationTest, UndefinedIndexFormat) {
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wgpu::BufferDescriptor bufferDesc;
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bufferDesc.usage = wgpu::BufferUsage::Index;
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bufferDesc.size = 256;
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wgpu::Buffer buffer = device.CreateBuffer(&bufferDesc);
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PlaceholderRenderPass renderPass(device);
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Undefined);
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Test that an invalid index format is disallowed.
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TEST_F(IndexBufferValidationTest, InvalidIndexFormat) {
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wgpu::BufferDescriptor bufferDesc;
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bufferDesc.usage = wgpu::BufferUsage::Index;
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bufferDesc.size = 256;
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wgpu::Buffer buffer = device.CreateBuffer(&bufferDesc);
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PlaceholderRenderPass renderPass(device);
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(buffer, static_cast<wgpu::IndexFormat>(404));
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Test that for OOB validation of index buffer offset and size.
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TEST_F(IndexBufferValidationTest, IndexBufferOffsetOOBValidation) {
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wgpu::BufferDescriptor bufferDesc;
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bufferDesc.usage = wgpu::BufferUsage::Index;
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bufferDesc.size = 256;
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wgpu::Buffer buffer = device.CreateBuffer(&bufferDesc);
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PlaceholderRenderPass renderPass(device);
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// Control case, using the full buffer, with or without an explicit size is valid.
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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// Explicit size
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 0, 256);
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// Implicit size
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 0, wgpu::kWholeSize);
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 256 - 4, wgpu::kWholeSize);
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 4, wgpu::kWholeSize);
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// Implicit size of zero
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 256, wgpu::kWholeSize);
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pass.End();
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encoder.Finish();
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}
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// Bad case, offset + size is larger than the buffer
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 4, 256);
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Bad case, size is 0 but the offset is larger than the buffer
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 256 + 4, 0);
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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utils::ComboRenderBundleEncoderDescriptor renderBundleDesc = {};
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renderBundleDesc.colorFormatsCount = 1;
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renderBundleDesc.cColorFormats[0] = wgpu::TextureFormat::RGBA8Unorm;
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// Control case, using the full buffer, with or without an explicit size is valid.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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// Explicit size
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 0, 256);
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// Implicit size
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 0, wgpu::kWholeSize);
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 256 - 4, wgpu::kWholeSize);
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 4, wgpu::kWholeSize);
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// Implicit size of zero
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 256, wgpu::kWholeSize);
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encoder.Finish();
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}
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// Bad case, offset + size is larger than the buffer
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 4, 256);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Bad case, size is 0 but the offset is larger than the buffer
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(buffer, wgpu::IndexFormat::Uint32, 256 + 4, 0);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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}
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// Test that formats given when setting an index buffers must match the format specified on the
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// pipeline for strip primitive topologies.
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TEST_F(IndexBufferValidationTest, IndexBufferFormatMatchesPipelineStripFormat) {
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wgpu::RenderPipeline pipeline32 =
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MakeTestPipeline(wgpu::IndexFormat::Uint32, wgpu::PrimitiveTopology::TriangleStrip);
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wgpu::RenderPipeline pipeline16 =
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MakeTestPipeline(wgpu::IndexFormat::Uint16, wgpu::PrimitiveTopology::LineStrip);
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wgpu::RenderPipeline pipelineUndef =
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MakeTestPipeline(wgpu::IndexFormat::Undefined, wgpu::PrimitiveTopology::LineStrip);
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wgpu::Buffer indexBuffer =
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utils::CreateBufferFromData<uint32_t>(device, wgpu::BufferUsage::Index, {0, 1, 2});
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utils::ComboRenderBundleEncoderDescriptor renderBundleDesc = {};
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renderBundleDesc.colorFormatsCount = 1;
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renderBundleDesc.cColorFormats[0] = wgpu::TextureFormat::RGBA8Unorm;
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// Expected to fail because pipeline and index formats don't match.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16);
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encoder.SetPipeline(pipeline32);
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encoder.DrawIndexed(3);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32);
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encoder.SetPipeline(pipeline16);
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encoder.DrawIndexed(3);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Expected to succeed because pipeline and index formats match.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16);
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encoder.SetPipeline(pipeline16);
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encoder.DrawIndexed(3);
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encoder.Finish();
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}
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32);
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encoder.SetPipeline(pipeline32);
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encoder.DrawIndexed(3);
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encoder.Finish();
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}
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// Expected to fail because pipeline doesn't specify an index format.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16);
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encoder.SetPipeline(pipelineUndef);
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encoder.DrawIndexed(3);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32);
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encoder.SetPipeline(pipelineUndef);
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encoder.DrawIndexed(3);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Expected to succeed because non-indexed draw calls don't require a pipeline index format.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetPipeline(pipelineUndef);
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encoder.Draw(3);
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encoder.Finish();
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}
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}
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// Check that the index buffer must have the Index usage.
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TEST_F(IndexBufferValidationTest, InvalidUsage) {
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wgpu::Buffer indexBuffer =
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utils::CreateBufferFromData<uint32_t>(device, wgpu::BufferUsage::Index, {0, 1, 2});
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wgpu::Buffer copyBuffer =
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utils::CreateBufferFromData<uint32_t>(device, wgpu::BufferUsage::CopySrc, {0, 1, 2});
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PlaceholderRenderPass renderPass(device);
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// Control case: using the index buffer is valid.
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32);
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pass.End();
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encoder.Finish();
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}
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// Error case: using the copy buffer is an error.
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(copyBuffer, wgpu::IndexFormat::Uint32);
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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utils::ComboRenderBundleEncoderDescriptor renderBundleDesc = {};
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renderBundleDesc.colorFormatsCount = 1;
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renderBundleDesc.cColorFormats[0] = wgpu::TextureFormat::RGBA8Unorm;
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// Control case: using the index buffer is valid.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32);
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encoder.Finish();
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}
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// Error case: using the copy buffer is an error.
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{
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wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
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encoder.SetIndexBuffer(copyBuffer, wgpu::IndexFormat::Uint32);
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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}
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// Check the alignment constraint on the index buffer offset.
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TEST_F(IndexBufferValidationTest, OffsetAlignment) {
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wgpu::Buffer indexBuffer =
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utils::CreateBufferFromData<uint32_t>(device, wgpu::BufferUsage::Index, {0, 1, 2});
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PlaceholderRenderPass renderPass(device);
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// Control cases: index buffer offset is a multiple of the index format size
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32, 0);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32, 4);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16, 0);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16, 2);
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pass.End();
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encoder.Finish();
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}
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// Error case: index buffer offset isn't a multiple of 4 for IndexFormat::Uint32
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32, 2);
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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// Error case: index buffer offset isn't a multiple of 2 for IndexFormat::Uint16
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{
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wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
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wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
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pass.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16, 1);
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pass.End();
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ASSERT_DEVICE_ERROR(encoder.Finish());
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}
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}
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