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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 DAWNNATIVE_UTILS_WGPUHELPERS_H_
#define DAWNNATIVE_UTILS_WGPUHELPERS_H_
#include <dawn_native/dawn_platform.h>
#include <array>
#include <initializer_list>
#include <vector>
#include "common/RefCounted.h"
#include "dawn_native/Error.h"
namespace dawn_native { namespace utils {
ResultOrError<Ref<ShaderModuleBase>> CreateShaderModule(DeviceBase* device, const char* source);
ResultOrError<Ref<BufferBase>> CreateBufferFromData(DeviceBase* device,
wgpu::BufferUsage usage,
const void* data,
uint64_t size);
template <typename T>
ResultOrError<Ref<BufferBase>> CreateBufferFromData(DeviceBase* device,
wgpu::BufferUsage usage,
std::initializer_list<T> data) {
return CreateBufferFromData(device, usage, data.begin(), uint32_t(sizeof(T) * data.size()));
}
ResultOrError<Ref<PipelineLayoutBase>> MakeBasicPipelineLayout(
DeviceBase* device,
const Ref<BindGroupLayoutBase>& bindGroupLayout);
// Helpers to make creating bind group layouts look nicer:
//
// utils::MakeBindGroupLayout(device, {
// {0, wgpu::ShaderStage::Vertex, wgpu::BufferBindingType::Uniform},
// {1, wgpu::ShaderStage::Fragment, wgpu::SamplerBindingType::Filtering},
// {3, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Float}
// });
struct BindingLayoutEntryInitializationHelper : BindGroupLayoutEntry {
BindingLayoutEntryInitializationHelper(uint32_t entryBinding,
wgpu::ShaderStage entryVisibility,
wgpu::BufferBindingType bufferType,
bool bufferHasDynamicOffset = false,
uint64_t bufferMinBindingSize = 0);
BindingLayoutEntryInitializationHelper(uint32_t entryBinding,
wgpu::ShaderStage entryVisibility,
wgpu::SamplerBindingType samplerType);
BindingLayoutEntryInitializationHelper(
uint32_t entryBinding,
wgpu::ShaderStage entryVisibility,
wgpu::TextureSampleType textureSampleType,
wgpu::TextureViewDimension viewDimension = wgpu::TextureViewDimension::e2D,
bool textureMultisampled = false);
BindingLayoutEntryInitializationHelper(
uint32_t entryBinding,
wgpu::ShaderStage entryVisibility,
wgpu::StorageTextureAccess storageTextureAccess,
wgpu::TextureFormat format,
wgpu::TextureViewDimension viewDimension = wgpu::TextureViewDimension::e2D);
BindingLayoutEntryInitializationHelper(const BindGroupLayoutEntry& entry);
};
ResultOrError<Ref<BindGroupLayoutBase>> MakeBindGroupLayout(
DeviceBase* device,
std::initializer_list<BindingLayoutEntryInitializationHelper> entriesInitializer,
bool allowInternalBinding = false);
// 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 Ref<SamplerBase>& sampler);
BindingInitializationHelper(uint32_t binding, const Ref<TextureViewBase>& textureView);
BindingInitializationHelper(uint32_t binding,
const Ref<BufferBase>& buffer,
uint64_t offset = 0,
uint64_t size = wgpu::kWholeSize);
~BindingInitializationHelper();
BindGroupEntry GetAsBinding() const;
uint32_t binding;
Ref<SamplerBase> sampler;
Ref<TextureViewBase> textureView;
Ref<BufferBase> buffer;
uint64_t offset = 0;
uint64_t size = 0;
};
ResultOrError<Ref<BindGroupBase>> MakeBindGroup(
DeviceBase* device,
const Ref<BindGroupLayoutBase>& layout,
std::initializer_list<BindingInitializationHelper> entriesInitializer);
}} // namespace dawn_native::utils
#endif // DAWNNATIVE_UTILS_WGPUHELPERS_H_