| // 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 "dawn/native/AttachmentState.h" |
| |
| #include "dawn/common/BitSetIterator.h" |
| #include "dawn/native/Device.h" |
| #include "dawn/native/ObjectContentHasher.h" |
| #include "dawn/native/Texture.h" |
| |
| namespace dawn::native { |
| |
| AttachmentStateBlueprint::AttachmentStateBlueprint(const RenderBundleEncoderDescriptor* descriptor) |
| : mSampleCount(descriptor->sampleCount) { |
| ASSERT(descriptor->colorFormatsCount <= kMaxColorAttachments); |
| for (ColorAttachmentIndex i(uint8_t(0)); |
| i < ColorAttachmentIndex(static_cast<uint8_t>(descriptor->colorFormatsCount)); ++i) { |
| wgpu::TextureFormat format = descriptor->colorFormats[static_cast<uint8_t>(i)]; |
| if (format != wgpu::TextureFormat::Undefined) { |
| mColorAttachmentsSet.set(i); |
| mColorFormats[i] = format; |
| } |
| } |
| mDepthStencilFormat = descriptor->depthStencilFormat; |
| } |
| |
| AttachmentStateBlueprint::AttachmentStateBlueprint(const RenderPipelineDescriptor* descriptor) |
| : mSampleCount(descriptor->multisample.count) { |
| if (descriptor->fragment != nullptr) { |
| ASSERT(descriptor->fragment->targetCount <= kMaxColorAttachments); |
| for (ColorAttachmentIndex i(uint8_t(0)); |
| i < ColorAttachmentIndex(static_cast<uint8_t>(descriptor->fragment->targetCount)); |
| ++i) { |
| wgpu::TextureFormat format = |
| descriptor->fragment->targets[static_cast<uint8_t>(i)].format; |
| if (format != wgpu::TextureFormat::Undefined) { |
| mColorAttachmentsSet.set(i); |
| mColorFormats[i] = format; |
| } |
| } |
| } |
| if (descriptor->depthStencil != nullptr) { |
| mDepthStencilFormat = descriptor->depthStencil->format; |
| } |
| } |
| |
| AttachmentStateBlueprint::AttachmentStateBlueprint(const RenderPassDescriptor* descriptor) { |
| for (ColorAttachmentIndex i(uint8_t(0)); |
| i < ColorAttachmentIndex(static_cast<uint8_t>(descriptor->colorAttachmentCount)); ++i) { |
| TextureViewBase* attachment = descriptor->colorAttachments[static_cast<uint8_t>(i)].view; |
| if (attachment == nullptr) { |
| continue; |
| } |
| mColorAttachmentsSet.set(i); |
| mColorFormats[i] = attachment->GetFormat().format; |
| if (mSampleCount == 0) { |
| mSampleCount = attachment->GetTexture()->GetSampleCount(); |
| } else { |
| ASSERT(mSampleCount == attachment->GetTexture()->GetSampleCount()); |
| } |
| } |
| if (descriptor->depthStencilAttachment != nullptr) { |
| TextureViewBase* attachment = descriptor->depthStencilAttachment->view; |
| mDepthStencilFormat = attachment->GetFormat().format; |
| if (mSampleCount == 0) { |
| mSampleCount = attachment->GetTexture()->GetSampleCount(); |
| } else { |
| ASSERT(mSampleCount == attachment->GetTexture()->GetSampleCount()); |
| } |
| } |
| ASSERT(mSampleCount > 0); |
| } |
| |
| AttachmentStateBlueprint::AttachmentStateBlueprint(const AttachmentStateBlueprint& rhs) = default; |
| |
| size_t AttachmentStateBlueprint::HashFunc::operator()( |
| const AttachmentStateBlueprint* attachmentState) const { |
| size_t hash = 0; |
| |
| // Hash color formats |
| HashCombine(&hash, attachmentState->mColorAttachmentsSet); |
| for (ColorAttachmentIndex i : IterateBitSet(attachmentState->mColorAttachmentsSet)) { |
| HashCombine(&hash, attachmentState->mColorFormats[i]); |
| } |
| |
| // Hash depth stencil attachment |
| HashCombine(&hash, attachmentState->mDepthStencilFormat); |
| |
| // Hash sample count |
| HashCombine(&hash, attachmentState->mSampleCount); |
| |
| return hash; |
| } |
| |
| bool AttachmentStateBlueprint::EqualityFunc::operator()(const AttachmentStateBlueprint* a, |
| const AttachmentStateBlueprint* b) const { |
| // Check set attachments |
| if (a->mColorAttachmentsSet != b->mColorAttachmentsSet) { |
| return false; |
| } |
| |
| // Check color formats |
| for (ColorAttachmentIndex i : IterateBitSet(a->mColorAttachmentsSet)) { |
| if (a->mColorFormats[i] != b->mColorFormats[i]) { |
| return false; |
| } |
| } |
| |
| // Check depth stencil format |
| if (a->mDepthStencilFormat != b->mDepthStencilFormat) { |
| return false; |
| } |
| |
| // Check sample count |
| if (a->mSampleCount != b->mSampleCount) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| AttachmentState::AttachmentState(DeviceBase* device, const AttachmentStateBlueprint& blueprint) |
| : AttachmentStateBlueprint(blueprint), ObjectBase(device) {} |
| |
| AttachmentState::~AttachmentState() { |
| GetDevice()->UncacheAttachmentState(this); |
| } |
| |
| size_t AttachmentState::ComputeContentHash() { |
| // TODO(dawn:549): skip this traversal and reuse the blueprint. |
| return AttachmentStateBlueprint::HashFunc()(this); |
| } |
| |
| ityp::bitset<ColorAttachmentIndex, kMaxColorAttachments> AttachmentState::GetColorAttachmentsMask() |
| const { |
| return mColorAttachmentsSet; |
| } |
| |
| wgpu::TextureFormat AttachmentState::GetColorAttachmentFormat(ColorAttachmentIndex index) const { |
| ASSERT(mColorAttachmentsSet[index]); |
| return mColorFormats[index]; |
| } |
| |
| bool AttachmentState::HasDepthStencilAttachment() const { |
| return mDepthStencilFormat != wgpu::TextureFormat::Undefined; |
| } |
| |
| wgpu::TextureFormat AttachmentState::GetDepthStencilFormat() const { |
| ASSERT(HasDepthStencilAttachment()); |
| return mDepthStencilFormat; |
| } |
| |
| uint32_t AttachmentState::GetSampleCount() const { |
| return mSampleCount; |
| } |
| |
| } // namespace dawn::native |