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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/webgpu/gpu_bind_group_layout.h"
#include "base/containers/heap_array.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_bind_group_layout_descriptor.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_bind_group_layout_entry.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_buffer_binding_layout.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_external_texture_binding_layout.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_feature_name.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_sampler_binding_layout.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_storage_texture_binding_layout.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_texture_binding_layout.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_conversions.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_device.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_supported_features.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
namespace blink {
wgpu::BindGroupLayoutEntry AsDawnType(
GPUDevice* device,
const GPUBindGroupLayoutEntry* webgpu_binding,
Vector<std::unique_ptr<wgpu::ExternalTextureBindingLayout>>*
externalTextureBindingLayouts,
ExceptionState& exception_state) {
wgpu::BindGroupLayoutEntry dawn_binding = {
.binding = webgpu_binding->binding(),
.visibility =
AsDawnFlags<wgpu::ShaderStage>(webgpu_binding->visibility()),
};
if (webgpu_binding->hasBuffer()) {
dawn_binding.buffer = {
.type = AsDawnEnum(webgpu_binding->buffer()->type()),
.hasDynamicOffset = webgpu_binding->buffer()->hasDynamicOffset(),
.minBindingSize = webgpu_binding->buffer()->minBindingSize(),
};
}
if (webgpu_binding->hasSampler()) {
dawn_binding.sampler.type = AsDawnEnum(webgpu_binding->sampler()->type());
}
if (webgpu_binding->hasTexture()) {
dawn_binding.texture = {
.sampleType = AsDawnEnum(webgpu_binding->texture()->sampleType()),
.viewDimension = AsDawnEnum(webgpu_binding->texture()->viewDimension()),
.multisampled = webgpu_binding->texture()->multisampled(),
};
}
if (webgpu_binding->hasStorageTexture()) {
if (!device->ValidateTextureFormatUsage(
webgpu_binding->storageTexture()->format(), exception_state)) {
return {};
}
dawn_binding.storageTexture = {
.access = AsDawnEnum(webgpu_binding->storageTexture()->access()),
.format = AsDawnEnum(webgpu_binding->storageTexture()->format()),
.viewDimension =
AsDawnEnum(webgpu_binding->storageTexture()->viewDimension()),
};
}
if (webgpu_binding->hasExternalTexture()) {
std::unique_ptr<wgpu::ExternalTextureBindingLayout>
externalTextureBindingLayout =
std::make_unique<wgpu::ExternalTextureBindingLayout>();
dawn_binding.nextInChain = externalTextureBindingLayout.get();
externalTextureBindingLayouts->push_back(
std::move(externalTextureBindingLayout));
}
return dawn_binding;
}
// TODO(crbug.com/1069302): Remove when unused.
base::HeapArray<wgpu::BindGroupLayoutEntry> AsDawnType(
GPUDevice* device,
const HeapVector<Member<GPUBindGroupLayoutEntry>>& webgpu_objects,
Vector<std::unique_ptr<wgpu::ExternalTextureBindingLayout>>*
externalTextureBindingLayouts,
ExceptionState& exception_state) {
const wtf_size_t count = webgpu_objects.size();
auto dawn_objects =
base::HeapArray<wgpu::BindGroupLayoutEntry>::WithSize(count);
for (wtf_size_t i = 0; i < count; ++i) {
dawn_objects[i] =
AsDawnType(device, webgpu_objects[i].Get(),
externalTextureBindingLayouts, exception_state);
}
return dawn_objects;
}
// static
GPUBindGroupLayout* GPUBindGroupLayout::Create(
GPUDevice* device,
const GPUBindGroupLayoutDescriptor* webgpu_desc,
ExceptionState& exception_state) {
DCHECK(device);
DCHECK(webgpu_desc);
uint32_t entry_count = 0;
base::HeapArray<wgpu::BindGroupLayoutEntry> entries;
Vector<std::unique_ptr<wgpu::ExternalTextureBindingLayout>>
externalTextureBindingLayouts;
entry_count = static_cast<uint32_t>(webgpu_desc->entries().size());
if (entry_count > 0) {
entries = AsDawnType(device, webgpu_desc->entries(),
&externalTextureBindingLayouts, exception_state);
}
if (exception_state.HadException()) {
return nullptr;
}
wgpu::BindGroupLayoutDescriptor dawn_desc = {
.entryCount = entry_count,
.entries = entries.data(),
};
std::string label = webgpu_desc->label().Utf8();
if (!label.empty()) {
dawn_desc.label = label.c_str();
}
GPUBindGroupLayout* layout = MakeGarbageCollected<GPUBindGroupLayout>(
device, device->GetHandle().CreateBindGroupLayout(&dawn_desc),
webgpu_desc->label());
return layout;
}
GPUBindGroupLayout::GPUBindGroupLayout(GPUDevice* device,
wgpu::BindGroupLayout bind_group_layout,
const String& label)
: DawnObject<wgpu::BindGroupLayout>(device,
std::move(bind_group_layout),
label) {}
} // namespace blink
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