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// Copyright 2018 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/ProgrammablePassEncoder.h"
#include "common/BitSetIterator.h"
#include "common/ityp_array.h"
#include "dawn_native/BindGroup.h"
#include "dawn_native/Buffer.h"
#include "dawn_native/CommandBuffer.h"
#include "dawn_native/Commands.h"
#include "dawn_native/Device.h"
#include "dawn_native/ValidationUtils_autogen.h"
#include <cstring>
namespace dawn_native {
ProgrammablePassEncoder::ProgrammablePassEncoder(DeviceBase* device,
EncodingContext* encodingContext)
: ObjectBase(device),
mEncodingContext(encodingContext),
mValidationEnabled(device->IsValidationEnabled()) {
}
ProgrammablePassEncoder::ProgrammablePassEncoder(DeviceBase* device,
EncodingContext* encodingContext,
ErrorTag errorTag)
: ObjectBase(device, errorTag),
mEncodingContext(encodingContext),
mValidationEnabled(device->IsValidationEnabled()) {
}
bool ProgrammablePassEncoder::IsValidationEnabled() const {
return mValidationEnabled;
}
MaybeError ProgrammablePassEncoder::ValidateProgrammableEncoderEnd() const {
if (mDebugGroupStackSize != 0) {
return DAWN_VALIDATION_ERROR("Each Push must be balanced by a corresponding Pop.");
}
return {};
}
void ProgrammablePassEncoder::APIInsertDebugMarker(const char* groupLabel) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
InsertDebugMarkerCmd* cmd =
allocator->Allocate<InsertDebugMarkerCmd>(Command::InsertDebugMarker);
cmd->length = strlen(groupLabel);
char* label = allocator->AllocateData<char>(cmd->length + 1);
memcpy(label, groupLabel, cmd->length + 1);
return {};
});
}
void ProgrammablePassEncoder::APIPopDebugGroup() {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
if (IsValidationEnabled()) {
if (mDebugGroupStackSize == 0) {
return DAWN_VALIDATION_ERROR("Pop must be balanced by a corresponding Push.");
}
}
allocator->Allocate<PopDebugGroupCmd>(Command::PopDebugGroup);
mDebugGroupStackSize--;
return {};
});
}
void ProgrammablePassEncoder::APIPushDebugGroup(const char* groupLabel) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
PushDebugGroupCmd* cmd =
allocator->Allocate<PushDebugGroupCmd>(Command::PushDebugGroup);
cmd->length = strlen(groupLabel);
char* label = allocator->AllocateData<char>(cmd->length + 1);
memcpy(label, groupLabel, cmd->length + 1);
mDebugGroupStackSize++;
return {};
});
}
MaybeError ProgrammablePassEncoder::ValidateSetBindGroup(
BindGroupIndex index,
BindGroupBase* group,
uint32_t dynamicOffsetCountIn,
const uint32_t* dynamicOffsetsIn) const {
DAWN_TRY(GetDevice()->ValidateObject(group));
if (index >= kMaxBindGroupsTyped) {
return DAWN_VALIDATION_ERROR("Setting bind group over the max");
}
ityp::span<BindingIndex, const uint32_t> dynamicOffsets(dynamicOffsetsIn,
BindingIndex(dynamicOffsetCountIn));
// Dynamic offsets count must match the number required by the layout perfectly.
const BindGroupLayoutBase* layout = group->GetLayout();
if (layout->GetDynamicBufferCount() != dynamicOffsets.size()) {
return DAWN_VALIDATION_ERROR("dynamicOffset count mismatch");
}
for (BindingIndex i{0}; i < dynamicOffsets.size(); ++i) {
const BindingInfo& bindingInfo = layout->GetBindingInfo(i);
// BGL creation sorts bindings such that the dynamic buffer bindings are first.
// ASSERT that this true.
ASSERT(bindingInfo.bindingType == BindingInfoType::Buffer);
ASSERT(bindingInfo.buffer.hasDynamicOffset);
uint64_t requiredAlignment;
switch (bindingInfo.buffer.type) {
case wgpu::BufferBindingType::Uniform:
requiredAlignment = kMinUniformBufferOffsetAlignment;
break;
case wgpu::BufferBindingType::Storage:
case wgpu::BufferBindingType::ReadOnlyStorage:
case kInternalStorageBufferBinding:
requiredAlignment = kMinStorageBufferOffsetAlignment;
requiredAlignment = kMinStorageBufferOffsetAlignment;
break;
case wgpu::BufferBindingType::Undefined:
UNREACHABLE();
}
if (!IsAligned(dynamicOffsets[i], requiredAlignment)) {
return DAWN_VALIDATION_ERROR("Dynamic Buffer Offset need to be aligned");
}
BufferBinding bufferBinding = group->GetBindingAsBufferBinding(i);
// During BindGroup creation, validation ensures binding offset + binding size
// <= buffer size.
ASSERT(bufferBinding.buffer->GetSize() >= bufferBinding.size);
ASSERT(bufferBinding.buffer->GetSize() - bufferBinding.size >= bufferBinding.offset);
if ((dynamicOffsets[i] >
bufferBinding.buffer->GetSize() - bufferBinding.offset - bufferBinding.size)) {
if ((bufferBinding.buffer->GetSize() - bufferBinding.offset) ==
bufferBinding.size) {
return DAWN_VALIDATION_ERROR(
"Dynamic offset out of bounds. The binding goes to the end of the "
"buffer even with a dynamic offset of 0. Did you forget to specify "
"the binding's size?");
} else {
return DAWN_VALIDATION_ERROR("Dynamic offset out of bounds");
}
}
}
return {};
}
void ProgrammablePassEncoder::RecordSetBindGroup(CommandAllocator* allocator,
BindGroupIndex index,
BindGroupBase* group,
uint32_t dynamicOffsetCount,
const uint32_t* dynamicOffsets) const {
SetBindGroupCmd* cmd = allocator->Allocate<SetBindGroupCmd>(Command::SetBindGroup);
cmd->index = index;
cmd->group = group;
cmd->dynamicOffsetCount = dynamicOffsetCount;
if (dynamicOffsetCount > 0) {
uint32_t* offsets = allocator->AllocateData<uint32_t>(cmd->dynamicOffsetCount);
memcpy(offsets, dynamicOffsets, dynamicOffsetCount * sizeof(uint32_t));
}
}
} // namespace dawn_native