dawn-cmake/src/tests/end2end/DrawTests.cpp
Yunchao He b2207737ab Construct VertexAttributeDescriptor, in order to match web idl
The parameters about vertex attribute were encapsulated in
VertexAttributeDescriptor in web idl. This change construct
this descriptor accordingly.

BUG=dawn:107

Change-Id: Ia1c6e53af951d8f2a0c0b69bdca09291c2661e50
Reviewed-on: https://dawn-review.googlesource.com/c/4620
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
2019-02-14 00:35:39 +00:00

120 lines
4.4 KiB
C++

// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "tests/DawnTest.h"
#include "utils/ComboRenderPipelineDescriptor.h"
#include "utils/DawnHelpers.h"
constexpr uint32_t kRTSize = 4;
class DrawTest : public DawnTest {
protected:
void SetUp() override {
DawnTest::SetUp();
renderPass = utils::CreateBasicRenderPass(device, kRTSize, kRTSize);
dawn::VertexAttributeDescriptor attribute;
attribute.shaderLocation = 0;
attribute.inputSlot = 0;
attribute.offset = 0;
attribute.format = dawn::VertexFormat::FloatR32G32B32A32;
dawn::InputState inputState =
device.CreateInputStateBuilder()
.SetInput(0, 4 * sizeof(float), dawn::InputStepMode::Vertex)
.SetAttribute(&attribute)
.GetResult();
dawn::ShaderModule vsModule =
utils::CreateShaderModule(device, dawn::ShaderStage::Vertex, R"(
#version 450
layout(location = 0) in vec4 pos;
void main() {
gl_Position = pos;
})");
dawn::ShaderModule fsModule =
utils::CreateShaderModule(device, dawn::ShaderStage::Fragment, R"(
#version 450
layout(location = 0) out vec4 fragColor;
void main() {
fragColor = vec4(0.0, 1.0, 0.0, 1.0);
})");
utils::ComboRenderPipelineDescriptor descriptor(device);
descriptor.cVertexStage.module = vsModule;
descriptor.cFragmentStage.module = fsModule;
descriptor.primitiveTopology = dawn::PrimitiveTopology::TriangleStrip;
descriptor.indexFormat = dawn::IndexFormat::Uint32;
descriptor.inputState = inputState;
descriptor.cColorAttachments[0]->format = renderPass.colorFormat;
pipeline = device.CreateRenderPipeline(&descriptor);
vertexBuffer = utils::CreateBufferFromData<float>(
device, dawn::BufferUsageBit::Vertex,
{// The bottom left triangle
-1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, -1.0f, 1.0f, 0.0f, 1.0f,
// The top right triangle
-1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, -1.0f, 0.0f, 1.0f});
}
utils::BasicRenderPass renderPass;
dawn::RenderPipeline pipeline;
dawn::Buffer vertexBuffer;
void Test(uint32_t vertexCount,
uint32_t instanceCount,
uint32_t firstIndex,
uint32_t firstInstance,
RGBA8 bottomLeftExpected,
RGBA8 topRightExpected) {
uint32_t zeroOffset = 0;
dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder();
{
dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
pass.SetPipeline(pipeline);
pass.SetVertexBuffers(0, 1, &vertexBuffer, &zeroOffset);
pass.Draw(vertexCount, instanceCount, firstIndex, firstInstance);
pass.EndPass();
}
dawn::CommandBuffer commands = builder.GetResult();
queue.Submit(1, &commands);
EXPECT_PIXEL_RGBA8_EQ(bottomLeftExpected, renderPass.color, 1, 3);
EXPECT_PIXEL_RGBA8_EQ(topRightExpected, renderPass.color, 3, 1);
}
};
// The basic triangle draw.
TEST_P(DrawTest, Uint32) {
RGBA8 filled(0, 255, 0, 255);
RGBA8 notFilled(0, 0, 0, 0);
// Test a draw with no indices.
Test(0, 0, 0, 0, notFilled, notFilled);
// Test a draw with only the first 3 indices (bottom left triangle)
Test(3, 1, 0, 0, filled, notFilled);
// Test a draw with only the last 3 indices (top right triangle)
Test(3, 1, 3, 0, notFilled, filled);
// Test a draw with all 6 indices (both triangles).
Test(6, 1, 0, 0, filled, filled);
}
DAWN_INSTANTIATE_TEST(DrawTest, D3D12Backend, MetalBackend, OpenGLBackend, VulkanBackend)