encounter/dawn-cmake
1
0
Fork 0
mirror of https://github.com/encounter/dawn-cmake.git synced 2025-06-11 17:13:30 +00:00
Code Issues Packages Projects Releases Wiki Activity
dawn-cmake/src/dawn_native/RenderPipeline.cpp
Austin Eng ed8a8c0893 Triage Dawn TODOs 
Change-Id: Ia010e534df1ac8a82008b38c44cfd9dc3f0b1aa6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/53340
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2021-06-04 22:23:56 +00:00

792 lines
34 KiB
C++
Raw Blame History

// 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.
#include "dawn_native/RenderPipeline.h"
#include "common/BitSetIterator.h"
#include "common/VertexFormatUtils.h"
#include "dawn_native/ChainUtils_autogen.h"
#include "dawn_native/Commands.h"
#include "dawn_native/Device.h"
#include "dawn_native/ObjectContentHasher.h"
#include "dawn_native/ValidationUtils_autogen.h"
#include <cmath>
namespace dawn_native {
// Helper functions
namespace {
MaybeError ValidateVertexAttribute(DeviceBase* device,
const VertexAttribute* attribute,
uint64_t vertexBufferStride,
std::bitset<kMaxVertexAttributes>* attributesSetMask) {
DAWN_TRY(ValidateVertexFormat(attribute->format));
if (attribute->shaderLocation >= kMaxVertexAttributes) {
return DAWN_VALIDATION_ERROR("Setting attribute out of bounds");
}
// No underflow is possible because the max vertex format size is smaller than
// kMaxVertexBufferStride.
ASSERT(kMaxVertexBufferStride >= dawn::VertexFormatSize(attribute->format));
if (attribute->offset >
kMaxVertexBufferStride - dawn::VertexFormatSize(attribute->format)) {
return DAWN_VALIDATION_ERROR("Setting attribute offset out of bounds");
}
// No overflow is possible because the offset is already validated to be less
// than kMaxVertexBufferStride.
ASSERT(attribute->offset < kMaxVertexBufferStride);
if (vertexBufferStride > 0 &&
attribute->offset + dawn::VertexFormatSize(attribute->format) >
vertexBufferStride) {
return DAWN_VALIDATION_ERROR("Setting attribute offset out of bounds");
}
if (attribute->offset % dawn::VertexFormatComponentSize(attribute->format) != 0) {
return DAWN_VALIDATION_ERROR(
"Attribute offset needs to be a multiple of the size format's components");
}
if ((*attributesSetMask)[attribute->shaderLocation]) {
return DAWN_VALIDATION_ERROR("Setting already set attribute");
}
attributesSetMask->set(attribute->shaderLocation);
return {};
}
MaybeError ValidateVertexBufferLayout(
DeviceBase* device,
const VertexBufferLayout* buffer,
std::bitset<kMaxVertexAttributes>* attributesSetMask) {
DAWN_TRY(ValidateInputStepMode(buffer->stepMode));
if (buffer->arrayStride > kMaxVertexBufferStride) {
return DAWN_VALIDATION_ERROR("Setting arrayStride out of bounds");
}
if (buffer->arrayStride % 4 != 0) {
return DAWN_VALIDATION_ERROR(
"arrayStride of Vertex buffer needs to be a multiple of 4 bytes");
}
for (uint32_t i = 0; i < buffer->attributeCount; ++i) {
DAWN_TRY(ValidateVertexAttribute(device, &buffer->attributes[i],
buffer->arrayStride, attributesSetMask));
}
return {};
}
MaybeError ValidateVertexState(DeviceBase* device,
const VertexState* descriptor,
const PipelineLayoutBase* layout) {
if (descriptor->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
}
if (descriptor->bufferCount > kMaxVertexBuffers) {
return DAWN_VALIDATION_ERROR("Vertex buffer count exceeds maximum");
}
std::bitset<kMaxVertexAttributes> attributesSetMask;
uint32_t totalAttributesNum = 0;
for (uint32_t i = 0; i < descriptor->bufferCount; ++i) {
DAWN_TRY(ValidateVertexBufferLayout(device, &descriptor->buffers[i],
&attributesSetMask));
totalAttributesNum += descriptor->buffers[i].attributeCount;
}
// Every vertex attribute has a member called shaderLocation, and there are some
// requirements for shaderLocation: 1) >=0, 2) values are different across different
// attributes, 3) can't exceed kMaxVertexAttributes. So it can ensure that total
// attribute number never exceed kMaxVertexAttributes.
ASSERT(totalAttributesNum <= kMaxVertexAttributes);
DAWN_TRY(ValidateProgrammableStage(device, descriptor->module, descriptor->entryPoint,
layout, SingleShaderStage::Vertex));
const EntryPointMetadata& vertexMetadata =
descriptor->module->GetEntryPoint(descriptor->entryPoint);
if (!IsSubset(vertexMetadata.usedVertexAttributes, attributesSetMask)) {
return DAWN_VALIDATION_ERROR(
"Pipeline vertex stage uses vertex buffers not in the vertex state");
}
return {};
}
MaybeError ValidatePrimitiveState(const DeviceBase* device,
const PrimitiveState* descriptor) {
DAWN_TRY(ValidateSingleSType(descriptor->nextInChain,
wgpu::SType::PrimitiveDepthClampingState));
const PrimitiveDepthClampingState* clampInfo = nullptr;
FindInChain(descriptor->nextInChain, &clampInfo);
if (clampInfo && !device->IsExtensionEnabled(Extension::DepthClamping)) {
return DAWN_VALIDATION_ERROR("The depth clamping feature is not supported");
}
DAWN_TRY(ValidatePrimitiveTopology(descriptor->topology));
DAWN_TRY(ValidateIndexFormat(descriptor->stripIndexFormat));
DAWN_TRY(ValidateFrontFace(descriptor->frontFace));
DAWN_TRY(ValidateCullMode(descriptor->cullMode));
// Pipeline descriptors must have stripIndexFormat != undefined IFF they are using strip
// topologies.
if (IsStripPrimitiveTopology(descriptor->topology)) {
if (descriptor->stripIndexFormat == wgpu::IndexFormat::Undefined) {
return DAWN_VALIDATION_ERROR(
"stripIndexFormat must not be undefined when using strip primitive "
"topologies");
}
} else if (descriptor->stripIndexFormat != wgpu::IndexFormat::Undefined) {
return DAWN_VALIDATION_ERROR(
"stripIndexFormat must be undefined when using non-strip primitive topologies");
}
return {};
}
MaybeError ValidateDepthStencilState(const DeviceBase* device,
const DepthStencilState* descriptor) {
if (descriptor->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
}
DAWN_TRY(ValidateCompareFunction(descriptor->depthCompare));
DAWN_TRY(ValidateCompareFunction(descriptor->stencilFront.compare));
DAWN_TRY(ValidateStencilOperation(descriptor->stencilFront.failOp));
DAWN_TRY(ValidateStencilOperation(descriptor->stencilFront.depthFailOp));
DAWN_TRY(ValidateStencilOperation(descriptor->stencilFront.passOp));
DAWN_TRY(ValidateCompareFunction(descriptor->stencilBack.compare));
DAWN_TRY(ValidateStencilOperation(descriptor->stencilBack.failOp));
DAWN_TRY(ValidateStencilOperation(descriptor->stencilBack.depthFailOp));
DAWN_TRY(ValidateStencilOperation(descriptor->stencilBack.passOp));
const Format* format;
DAWN_TRY_ASSIGN(format, device->GetInternalFormat(descriptor->format));
if (!format->HasDepthOrStencil() || !format->isRenderable) {
return DAWN_VALIDATION_ERROR(
"Depth stencil format must be depth-stencil renderable");
}
if (std::isnan(descriptor->depthBiasSlopeScale) ||
std::isnan(descriptor->depthBiasClamp)) {
return DAWN_VALIDATION_ERROR("Depth bias parameters must not be NaN.");
}
return {};
}
MaybeError ValidateMultisampleState(const MultisampleState* descriptor) {
if (descriptor->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
}
if (!IsValidSampleCount(descriptor->count)) {
return DAWN_VALIDATION_ERROR("Multisample count is not supported");
}
if (descriptor->alphaToCoverageEnabled && descriptor->count <= 1) {
return DAWN_VALIDATION_ERROR("Enabling alphaToCoverage requires sample count > 1");
}
return {};
}
static constexpr wgpu::BlendFactor kFirstDeprecatedBlendFactor =
wgpu::BlendFactor::SrcColor;
static constexpr uint32_t kDeprecatedBlendFactorOffset = 100;
bool IsDeprecatedBlendFactor(wgpu::BlendFactor blendFactor) {
return blendFactor >= kFirstDeprecatedBlendFactor;
}
wgpu::BlendFactor NormalizeBlendFactor(wgpu::BlendFactor blendFactor) {
// If the specified format is from the deprecated range return the corresponding
// non-deprecated format.
if (blendFactor >= kFirstDeprecatedBlendFactor) {
uint32_t blendFactorValue = static_cast<uint32_t>(blendFactor);
return static_cast<wgpu::BlendFactor>(blendFactorValue -
kDeprecatedBlendFactorOffset);
}
return blendFactor;
}
MaybeError ValidateBlendState(DeviceBase* device, const BlendState* descriptor) {
DAWN_TRY(ValidateBlendOperation(descriptor->alpha.operation));
DAWN_TRY(ValidateBlendFactor(descriptor->alpha.srcFactor));
DAWN_TRY(ValidateBlendFactor(descriptor->alpha.dstFactor));
DAWN_TRY(ValidateBlendOperation(descriptor->color.operation));
DAWN_TRY(ValidateBlendFactor(descriptor->color.srcFactor));
DAWN_TRY(ValidateBlendFactor(descriptor->color.dstFactor));
if (IsDeprecatedBlendFactor(descriptor->alpha.srcFactor) ||
IsDeprecatedBlendFactor(descriptor->alpha.dstFactor) ||
IsDeprecatedBlendFactor(descriptor->color.srcFactor) ||
IsDeprecatedBlendFactor(descriptor->color.dstFactor)) {
device->EmitDeprecationWarning(
"Blend factor enums have changed and the old enums will be removed soon.");
}
return {};
}
MaybeError ValidateColorTargetState(DeviceBase* device,
const ColorTargetState* descriptor,
bool fragmentWritten,
wgpu::TextureComponentType fragmentOutputBaseType) {
if (descriptor->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
}
if (descriptor->blend) {
DAWN_TRY(ValidateBlendState(device, descriptor->blend));
}
DAWN_TRY(ValidateColorWriteMask(descriptor->writeMask));
const Format* format;
DAWN_TRY_ASSIGN(format, device->GetInternalFormat(descriptor->format));
if (!format->IsColor() || !format->isRenderable) {
return DAWN_VALIDATION_ERROR("Color format must be color renderable");
}
if (fragmentWritten &&
fragmentOutputBaseType != format->GetAspectInfo(Aspect::Color).baseType) {
return DAWN_VALIDATION_ERROR(
"Color format must match the fragment stage output type");
}
return {};
}
MaybeError ValidateFragmentState(DeviceBase* device,
const FragmentState* descriptor,
const PipelineLayoutBase* layout) {
if (descriptor->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
}
DAWN_TRY(ValidateProgrammableStage(device, descriptor->module, descriptor->entryPoint,
layout, SingleShaderStage::Fragment));
if (descriptor->targetCount > kMaxColorAttachments) {
return DAWN_VALIDATION_ERROR("Number of color targets exceeds maximum");
}
const EntryPointMetadata& fragmentMetadata =
descriptor->module->GetEntryPoint(descriptor->entryPoint);
for (ColorAttachmentIndex i(uint8_t(0));
i < ColorAttachmentIndex(static_cast<uint8_t>(descriptor->targetCount)); ++i) {
DAWN_TRY(
ValidateColorTargetState(device, &descriptor->targets[static_cast<uint8_t>(i)],
fragmentMetadata.fragmentOutputsWritten[i],
fragmentMetadata.fragmentOutputFormatBaseTypes[i]));
}
return {};
}
} // anonymous namespace
// Helper functions
size_t IndexFormatSize(wgpu::IndexFormat format) {
switch (format) {
case wgpu::IndexFormat::Uint16:
return sizeof(uint16_t);
case wgpu::IndexFormat::Uint32:
return sizeof(uint32_t);
case wgpu::IndexFormat::Undefined:
UNREACHABLE();
}
}
bool IsStripPrimitiveTopology(wgpu::PrimitiveTopology primitiveTopology) {
return primitiveTopology == wgpu::PrimitiveTopology::LineStrip ||
primitiveTopology == wgpu::PrimitiveTopology::TriangleStrip;
}
MaybeError ValidateRenderPipelineDescriptor(DeviceBase* device,
const RenderPipelineDescriptor* descriptor) {
if (descriptor->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("nextInChain must be nullptr");
}
if (descriptor->layout != nullptr) {
DAWN_TRY(device->ValidateObject(descriptor->layout));
}
// TODO(crbug.com/dawn/136): Support vertex-only pipelines.
if (descriptor->fragment == nullptr) {
return DAWN_VALIDATION_ERROR("Null fragment stage is not supported (yet)");
}
DAWN_TRY(ValidateVertexState(device, &descriptor->vertex, descriptor->layout));
DAWN_TRY(ValidatePrimitiveState(device, &descriptor->primitive));
if (descriptor->depthStencil) {
DAWN_TRY(ValidateDepthStencilState(device, descriptor->depthStencil));
}
DAWN_TRY(ValidateMultisampleState(&descriptor->multisample));
ASSERT(descriptor->fragment != nullptr);
DAWN_TRY(ValidateFragmentState(device, descriptor->fragment, descriptor->layout));
if (descriptor->fragment->targetCount == 0 && !descriptor->depthStencil) {
return DAWN_VALIDATION_ERROR("Should have at least one color target or a depthStencil");
}
return {};
}
std::vector<StageAndDescriptor> GetStages(const RenderPipelineDescriptor* descriptor) {
std::vector<StageAndDescriptor> stages;
stages.push_back(
{SingleShaderStage::Vertex, descriptor->vertex.module, descriptor->vertex.entryPoint});
if (descriptor->fragment != nullptr) {
stages.push_back({SingleShaderStage::Fragment, descriptor->fragment->module,
descriptor->fragment->entryPoint});
}
return stages;
}
bool StencilTestEnabled(const DepthStencilState* mDepthStencil) {
return mDepthStencil->stencilBack.compare != wgpu::CompareFunction::Always ||
mDepthStencil->stencilBack.failOp != wgpu::StencilOperation::Keep ||
mDepthStencil->stencilBack.depthFailOp != wgpu::StencilOperation::Keep ||
mDepthStencil->stencilBack.passOp != wgpu::StencilOperation::Keep ||
mDepthStencil->stencilFront.compare != wgpu::CompareFunction::Always ||
mDepthStencil->stencilFront.failOp != wgpu::StencilOperation::Keep ||
mDepthStencil->stencilFront.depthFailOp != wgpu::StencilOperation::Keep ||
mDepthStencil->stencilFront.passOp != wgpu::StencilOperation::Keep;
}
// RenderPipelineBase
RenderPipelineBase::RenderPipelineBase(DeviceBase* device,
const RenderPipelineDescriptor* descriptor)
: PipelineBase(device,
descriptor->layout,
{{SingleShaderStage::Vertex, descriptor->vertex.module,
descriptor->vertex.entryPoint},
{SingleShaderStage::Fragment, descriptor->fragment->module,
descriptor->fragment->entryPoint}}),
mAttachmentState(device->GetOrCreateAttachmentState(descriptor)) {
mVertexBufferCount = descriptor->vertex.bufferCount;
const VertexBufferLayout* buffers = descriptor->vertex.buffers;
for (uint8_t slot = 0; slot < mVertexBufferCount; ++slot) {
if (buffers[slot].attributeCount == 0) {
continue;
}
VertexBufferSlot typedSlot(slot);
mVertexBufferSlotsUsed.set(typedSlot);
mVertexBufferInfos[typedSlot].arrayStride = buffers[slot].arrayStride;
mVertexBufferInfos[typedSlot].stepMode = buffers[slot].stepMode;
for (uint32_t i = 0; i < buffers[slot].attributeCount; ++i) {
VertexAttributeLocation location = VertexAttributeLocation(
static_cast<uint8_t>(buffers[slot].attributes[i].shaderLocation));
mAttributeLocationsUsed.set(location);
mAttributeInfos[location].shaderLocation = location;
mAttributeInfos[location].vertexBufferSlot = typedSlot;
mAttributeInfos[location].offset = buffers[slot].attributes[i].offset;
mAttributeInfos[location].format = buffers[slot].attributes[i].format;
}
}
mPrimitive = descriptor->primitive;
const PrimitiveDepthClampingState* clampInfo = nullptr;
FindInChain(mPrimitive.nextInChain, &clampInfo);
if (clampInfo) {
mClampDepth = clampInfo->clampDepth;
}
mMultisample = descriptor->multisample;
if (mAttachmentState->HasDepthStencilAttachment()) {
mDepthStencil = *descriptor->depthStencil;
} else {
// These default values below are useful for backends to fill information.
// The values indicate that depth and stencil test are disabled when backends
// set their own depth stencil states/descriptors according to the values in
// mDepthStencil.
mDepthStencil.format = wgpu::TextureFormat::Undefined;
mDepthStencil.depthWriteEnabled = false;
mDepthStencil.depthCompare = wgpu::CompareFunction::Always;
mDepthStencil.stencilBack.compare = wgpu::CompareFunction::Always;
mDepthStencil.stencilBack.failOp = wgpu::StencilOperation::Keep;
mDepthStencil.stencilBack.depthFailOp = wgpu::StencilOperation::Keep;
mDepthStencil.stencilBack.passOp = wgpu::StencilOperation::Keep;
mDepthStencil.stencilFront.compare = wgpu::CompareFunction::Always;
mDepthStencil.stencilFront.failOp = wgpu::StencilOperation::Keep;
mDepthStencil.stencilFront.depthFailOp = wgpu::StencilOperation::Keep;
mDepthStencil.stencilFront.passOp = wgpu::StencilOperation::Keep;
mDepthStencil.stencilReadMask = 0xff;
mDepthStencil.stencilWriteMask = 0xff;
mDepthStencil.depthBias = 0;
mDepthStencil.depthBiasSlopeScale = 0.0f;
mDepthStencil.depthBiasClamp = 0.0f;
}
for (ColorAttachmentIndex i : IterateBitSet(mAttachmentState->GetColorAttachmentsMask())) {
const ColorTargetState* target =
&descriptor->fragment->targets[static_cast<uint8_t>(i)];
mTargets[i] = *target;
if (target->blend != nullptr) {
mTargetBlend[i] = *target->blend;
mTargets[i].blend = &mTargetBlend[i];
mTargetBlend[i].alpha.srcFactor =
NormalizeBlendFactor(mTargetBlend[i].alpha.srcFactor);
mTargetBlend[i].alpha.dstFactor =
NormalizeBlendFactor(mTargetBlend[i].alpha.dstFactor);
mTargetBlend[i].color.srcFactor =
NormalizeBlendFactor(mTargetBlend[i].color.srcFactor);
mTargetBlend[i].color.dstFactor =
NormalizeBlendFactor(mTargetBlend[i].color.dstFactor);
}
}
}
RenderPipelineBase::RenderPipelineBase(DeviceBase* device, ObjectBase::ErrorTag tag)
: PipelineBase(device, tag) {
}
// static
RenderPipelineBase* RenderPipelineBase::MakeError(DeviceBase* device) {
return new RenderPipelineBase(device, ObjectBase::kError);
}
RenderPipelineBase::~RenderPipelineBase() {
if (IsCachedReference()) {
GetDevice()->UncacheRenderPipeline(this);
}
}
const ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes>&
RenderPipelineBase::GetAttributeLocationsUsed() const {
ASSERT(!IsError());
return mAttributeLocationsUsed;
}
const VertexAttributeInfo& RenderPipelineBase::GetAttribute(
VertexAttributeLocation location) const {
ASSERT(!IsError());
ASSERT(mAttributeLocationsUsed[location]);
return mAttributeInfos[location];
}
const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>&
RenderPipelineBase::GetVertexBufferSlotsUsed() const {
ASSERT(!IsError());
return mVertexBufferSlotsUsed;
}
const VertexBufferInfo& RenderPipelineBase::GetVertexBuffer(VertexBufferSlot slot) const {
ASSERT(!IsError());
ASSERT(mVertexBufferSlotsUsed[slot]);
return mVertexBufferInfos[slot];
}
uint32_t RenderPipelineBase::GetVertexBufferCount() const {
ASSERT(!IsError());
return mVertexBufferCount;
}
const ColorTargetState* RenderPipelineBase::GetColorTargetState(
ColorAttachmentIndex attachmentSlot) const {
ASSERT(!IsError());
ASSERT(attachmentSlot < mTargets.size());
return &mTargets[attachmentSlot];
}
const DepthStencilState* RenderPipelineBase::GetDepthStencilState() const {
ASSERT(!IsError());
return &mDepthStencil;
}
wgpu::PrimitiveTopology RenderPipelineBase::GetPrimitiveTopology() const {
ASSERT(!IsError());
return mPrimitive.topology;
}
wgpu::IndexFormat RenderPipelineBase::GetStripIndexFormat() const {
ASSERT(!IsError());
return mPrimitive.stripIndexFormat;
}
wgpu::CullMode RenderPipelineBase::GetCullMode() const {
ASSERT(!IsError());
return mPrimitive.cullMode;
}
wgpu::FrontFace RenderPipelineBase::GetFrontFace() const {
ASSERT(!IsError());
return mPrimitive.frontFace;
}
bool RenderPipelineBase::IsDepthBiasEnabled() const {
ASSERT(!IsError());
return mDepthStencil.depthBias != 0 || mDepthStencil.depthBiasSlopeScale != 0;
}
int32_t RenderPipelineBase::GetDepthBias() const {
ASSERT(!IsError());
return mDepthStencil.depthBias;
}
float RenderPipelineBase::GetDepthBiasSlopeScale() const {
ASSERT(!IsError());
return mDepthStencil.depthBiasSlopeScale;
}
float RenderPipelineBase::GetDepthBiasClamp() const {
ASSERT(!IsError());
return mDepthStencil.depthBiasClamp;
}
bool RenderPipelineBase::ShouldClampDepth() const {
ASSERT(!IsError());
return mClampDepth;
}
ityp::bitset<ColorAttachmentIndex, kMaxColorAttachments>
RenderPipelineBase::GetColorAttachmentsMask() const {
ASSERT(!IsError());
return mAttachmentState->GetColorAttachmentsMask();
}
bool RenderPipelineBase::HasDepthStencilAttachment() const {
ASSERT(!IsError());
return mAttachmentState->HasDepthStencilAttachment();
}
wgpu::TextureFormat RenderPipelineBase::GetColorAttachmentFormat(
ColorAttachmentIndex attachment) const {
ASSERT(!IsError());
return mTargets[attachment].format;
}
wgpu::TextureFormat RenderPipelineBase::GetDepthStencilFormat() const {
ASSERT(!IsError());
ASSERT(mAttachmentState->HasDepthStencilAttachment());
return mDepthStencil.format;
}
uint32_t RenderPipelineBase::GetSampleCount() const {
ASSERT(!IsError());
return mAttachmentState->GetSampleCount();
}
uint32_t RenderPipelineBase::GetSampleMask() const {
ASSERT(!IsError());
return mMultisample.mask;
}
bool RenderPipelineBase::IsAlphaToCoverageEnabled() const {
ASSERT(!IsError());
return mMultisample.alphaToCoverageEnabled;
}
const AttachmentState* RenderPipelineBase::GetAttachmentState() const {
ASSERT(!IsError());
return mAttachmentState.Get();
}
size_t RenderPipelineBase::ComputeContentHash() {
ObjectContentHasher recorder;
// Record modules and layout
recorder.Record(PipelineBase::ComputeContentHash());
// Hierarchically record the attachment state.
// It contains the attachments set, texture formats, and sample count.
recorder.Record(mAttachmentState->GetContentHash());
// Record attachments
for (ColorAttachmentIndex i : IterateBitSet(mAttachmentState->GetColorAttachmentsMask())) {
const ColorTargetState& desc = *GetColorTargetState(i);
recorder.Record(desc.writeMask);
if (desc.blend != nullptr) {
recorder.Record(desc.blend->color.operation, desc.blend->color.srcFactor,
desc.blend->color.dstFactor);
recorder.Record(desc.blend->alpha.operation, desc.blend->alpha.srcFactor,
desc.blend->alpha.dstFactor);
}
}
if (mAttachmentState->HasDepthStencilAttachment()) {
const DepthStencilState& desc = mDepthStencil;
recorder.Record(desc.depthWriteEnabled, desc.depthCompare);
recorder.Record(desc.stencilReadMask, desc.stencilWriteMask);
recorder.Record(desc.stencilFront.compare, desc.stencilFront.failOp,
desc.stencilFront.depthFailOp, desc.stencilFront.passOp);
recorder.Record(desc.stencilBack.compare, desc.stencilBack.failOp,
desc.stencilBack.depthFailOp, desc.stencilBack.passOp);
recorder.Record(desc.depthBias, desc.depthBiasSlopeScale, desc.depthBiasClamp);
}
// Record vertex state
recorder.Record(mAttributeLocationsUsed);
for (VertexAttributeLocation location : IterateBitSet(mAttributeLocationsUsed)) {
const VertexAttributeInfo& desc = GetAttribute(location);
recorder.Record(desc.shaderLocation, desc.vertexBufferSlot, desc.offset, desc.format);
}
recorder.Record(mVertexBufferSlotsUsed);
for (VertexBufferSlot slot : IterateBitSet(mVertexBufferSlotsUsed)) {
const VertexBufferInfo& desc = GetVertexBuffer(slot);
recorder.Record(desc.arrayStride, desc.stepMode);
}
// Record primitive state
recorder.Record(mPrimitive.topology, mPrimitive.stripIndexFormat, mPrimitive.frontFace,
mPrimitive.cullMode, mClampDepth);
// Record multisample state
// Sample count hashed as part of the attachment state
recorder.Record(mMultisample.mask, mMultisample.alphaToCoverageEnabled);
return recorder.GetContentHash();
}
bool RenderPipelineBase::EqualityFunc::operator()(const RenderPipelineBase* a,
const RenderPipelineBase* b) const {
// Check the layout and shader stages.
if (!PipelineBase::EqualForCache(a, b)) {
return false;
}
// Check the attachment state.
// It contains the attachments set, texture formats, and sample count.
if (a->mAttachmentState.Get() != b->mAttachmentState.Get()) {
return false;
}
for (ColorAttachmentIndex i :
IterateBitSet(a->mAttachmentState->GetColorAttachmentsMask())) {
const ColorTargetState& descA = *a->GetColorTargetState(i);
const ColorTargetState& descB = *b->GetColorTargetState(i);
if (descA.writeMask != descB.writeMask) {
return false;
}
if ((descA.blend == nullptr) != (descB.blend == nullptr)) {
return false;
}
if (descA.blend != nullptr) {
if (descA.blend->color.operation != descB.blend->color.operation ||
descA.blend->color.srcFactor != descB.blend->color.srcFactor ||
descA.blend->color.dstFactor != descB.blend->color.dstFactor) {
return false;
}
if (descA.blend->alpha.operation != descB.blend->alpha.operation ||
descA.blend->alpha.srcFactor != descB.blend->alpha.srcFactor ||
descA.blend->alpha.dstFactor != descB.blend->alpha.dstFactor) {
return false;
}
}
}
// Check depth/stencil state
if (a->mAttachmentState->HasDepthStencilAttachment()) {
const DepthStencilState& stateA = a->mDepthStencil;
const DepthStencilState& stateB = b->mDepthStencil;
ASSERT(!std::isnan(stateA.depthBiasSlopeScale));
ASSERT(!std::isnan(stateB.depthBiasSlopeScale));
ASSERT(!std::isnan(stateA.depthBiasClamp));
ASSERT(!std::isnan(stateB.depthBiasClamp));
if (stateA.depthWriteEnabled != stateB.depthWriteEnabled ||
stateA.depthCompare != stateB.depthCompare ||
stateA.depthBias != stateB.depthBias ||
stateA.depthBiasSlopeScale != stateB.depthBiasSlopeScale ||
stateA.depthBiasClamp != stateB.depthBiasClamp) {
return false;
}
if (stateA.stencilFront.compare != stateB.stencilFront.compare ||
stateA.stencilFront.failOp != stateB.stencilFront.failOp ||
stateA.stencilFront.depthFailOp != stateB.stencilFront.depthFailOp ||
stateA.stencilFront.passOp != stateB.stencilFront.passOp) {
return false;
}
if (stateA.stencilBack.compare != stateB.stencilBack.compare ||
stateA.stencilBack.failOp != stateB.stencilBack.failOp ||
stateA.stencilBack.depthFailOp != stateB.stencilBack.depthFailOp ||
stateA.stencilBack.passOp != stateB.stencilBack.passOp) {
return false;
}
if (stateA.stencilReadMask != stateB.stencilReadMask ||
stateA.stencilWriteMask != stateB.stencilWriteMask) {
return false;
}
}
// Check vertex state
if (a->mAttributeLocationsUsed != b->mAttributeLocationsUsed) {
return false;
}
for (VertexAttributeLocation loc : IterateBitSet(a->mAttributeLocationsUsed)) {
const VertexAttributeInfo& descA = a->GetAttribute(loc);
const VertexAttributeInfo& descB = b->GetAttribute(loc);
if (descA.shaderLocation != descB.shaderLocation ||
descA.vertexBufferSlot != descB.vertexBufferSlot || descA.offset != descB.offset ||
descA.format != descB.format) {
return false;
}
}
if (a->mVertexBufferSlotsUsed != b->mVertexBufferSlotsUsed) {
return false;
}
for (VertexBufferSlot slot : IterateBitSet(a->mVertexBufferSlotsUsed)) {
const VertexBufferInfo& descA = a->GetVertexBuffer(slot);
const VertexBufferInfo& descB = b->GetVertexBuffer(slot);
if (descA.arrayStride != descB.arrayStride || descA.stepMode != descB.stepMode) {
return false;
}
}
// Check primitive state
{
const PrimitiveState& stateA = a->mPrimitive;
const PrimitiveState& stateB = b->mPrimitive;
if (stateA.topology != stateB.topology ||
stateA.stripIndexFormat != stateB.stripIndexFormat ||
stateA.frontFace != stateB.frontFace || stateA.cullMode != stateB.cullMode ||
a->mClampDepth != b->mClampDepth) {
return false;
}
}
// Check multisample state
{
const MultisampleState& stateA = a->mMultisample;
const MultisampleState& stateB = b->mMultisample;
// Sample count already checked as part of the attachment state.
if (stateA.mask != stateB.mask ||
stateA.alphaToCoverageEnabled != stateB.alphaToCoverageEnabled) {
return false;
}
}
return true;
}
} // namespace dawn_native
Reference in New Issue View Git Blame Copy Permalink