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// Copyright 2017 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.
#ifndef UTILS_DAWNHELPERS_H_
#define UTILS_DAWNHELPERS_H_
#include <dawn/dawncpp.h>
#include <array>
#include <initializer_list>
#include "common/Constants.h"
namespace utils {
enum Expectation { Success, Failure };
enum class SingleShaderStage { Vertex, Fragment, Compute };
dawn::ShaderModule CreateShaderModule(const dawn::Device& device,
SingleShaderStage stage,
const char* source);
dawn::ShaderModule CreateShaderModuleFromASM(const dawn::Device& device, const char* source);
dawn::Buffer CreateBufferFromData(const dawn::Device& device,
const void* data,
uint64_t size,
dawn::BufferUsage usage);
template <typename T>
dawn::Buffer CreateBufferFromData(const dawn::Device& device,
dawn::BufferUsage usage,
std::initializer_list<T> data) {
return CreateBufferFromData(device, data.begin(), uint32_t(sizeof(T) * data.size()), usage);
}
dawn::BufferCopyView CreateBufferCopyView(dawn::Buffer buffer,
uint64_t offset,
uint32_t rowPitch,
uint32_t imageHeight);
dawn::TextureCopyView CreateTextureCopyView(dawn::Texture texture,
uint32_t level,
uint32_t slice,
dawn::Origin3D origin);
struct ComboRenderPassDescriptor : public dawn::RenderPassDescriptor {
public:
ComboRenderPassDescriptor(std::initializer_list<dawn::TextureView> colorAttachmentInfo,
dawn::TextureView depthStencil = dawn::TextureView());
const ComboRenderPassDescriptor& operator=(
const ComboRenderPassDescriptor& otherRenderPass);
dawn::RenderPassColorAttachmentDescriptor* cColorAttachmentsInfoPtr[kMaxColorAttachments];
dawn::RenderPassDepthStencilAttachmentDescriptor cDepthStencilAttachmentInfo;
private:
std::array<dawn::RenderPassColorAttachmentDescriptor, kMaxColorAttachments>
mColorAttachmentsInfo;
};
struct BasicRenderPass {
public:
BasicRenderPass();
BasicRenderPass(uint32_t width,
uint32_t height,
dawn::Texture color,
dawn::TextureFormat texture = kDefaultColorFormat);
static constexpr dawn::TextureFormat kDefaultColorFormat = dawn::TextureFormat::RGBA8Unorm;
uint32_t width;
uint32_t height;
dawn::Texture color;
dawn::TextureFormat colorFormat;
utils::ComboRenderPassDescriptor renderPassInfo;
};
BasicRenderPass CreateBasicRenderPass(const dawn::Device& device,
uint32_t width,
uint32_t height);
dawn::SamplerDescriptor GetDefaultSamplerDescriptor();
dawn::PipelineLayout MakeBasicPipelineLayout(const dawn::Device& device,
const dawn::BindGroupLayout* bindGroupLayout);
dawn::BindGroupLayout MakeBindGroupLayout(
const dawn::Device& device,
std::initializer_list<dawn::BindGroupLayoutBinding> bindingsInitializer);
// Helpers to make creating bind groups look nicer:
//
// utils::MakeBindGroup(device, layout, {
// {0, mySampler},
// {1, myBuffer, offset, size},
// {3, myTextureView}
// });
// Structure with one constructor per-type of bindings, so that the initializer_list accepts
// bindings with the right type and no extra information.
struct BindingInitializationHelper {
BindingInitializationHelper(uint32_t binding, const dawn::Sampler& sampler);
BindingInitializationHelper(uint32_t binding, const dawn::TextureView& textureView);
BindingInitializationHelper(uint32_t binding,
const dawn::Buffer& buffer,
uint64_t offset,
uint64_t size);
dawn::BindGroupBinding GetAsBinding() const;
uint32_t binding;
dawn::Sampler sampler;
dawn::TextureView textureView;
dawn::Buffer buffer;
uint64_t offset = 0;
uint64_t size = 0;
};
dawn::BindGroup MakeBindGroup(
const dawn::Device& device,
const dawn::BindGroupLayout& layout,
std::initializer_list<BindingInitializationHelper> bindingsInitializer);
} // namespace utils
#endif // UTILS_DAWNHELPERS_H_