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// 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/RenderEncoderBase.h"
#include "common/Constants.h"
#include "dawn_native/Buffer.h"
#include "dawn_native/CommandEncoder.h"
#include "dawn_native/Commands.h"
#include "dawn_native/Device.h"
#include "dawn_native/RenderPipeline.h"
#include "dawn_native/ValidationUtils_autogen.h"
#include <math.h>
#include <cstring>
namespace dawn_native {
RenderEncoderBase::RenderEncoderBase(DeviceBase* device, EncodingContext* encodingContext)
: ProgrammablePassEncoder(device, encodingContext, PassType::Render),
mDisableBaseVertex(device->IsToggleEnabled(Toggle::DisableBaseVertex)),
mDisableBaseInstance(device->IsToggleEnabled(Toggle::DisableBaseInstance)) {
}
RenderEncoderBase::RenderEncoderBase(DeviceBase* device,
EncodingContext* encodingContext,
ErrorTag errorTag)
: ProgrammablePassEncoder(device, encodingContext, errorTag, PassType::Render),
mDisableBaseVertex(device->IsToggleEnabled(Toggle::DisableBaseVertex)),
mDisableBaseInstance(device->IsToggleEnabled(Toggle::DisableBaseInstance)) {
}
void RenderEncoderBase::Draw(uint32_t vertexCount,
uint32_t instanceCount,
uint32_t firstVertex,
uint32_t firstInstance) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
if (mDisableBaseInstance && firstInstance != 0) {
return DAWN_VALIDATION_ERROR("Non-zero first instance not supported");
}
DrawCmd* draw = allocator->Allocate<DrawCmd>(Command::Draw);
draw->vertexCount = vertexCount;
draw->instanceCount = instanceCount;
draw->firstVertex = firstVertex;
draw->firstInstance = firstInstance;
return {};
});
}
void RenderEncoderBase::DrawIndexed(uint32_t indexCount,
uint32_t instanceCount,
uint32_t firstIndex,
int32_t baseVertex,
uint32_t firstInstance) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
if (mDisableBaseInstance && firstInstance != 0) {
return DAWN_VALIDATION_ERROR("Non-zero first instance not supported");
}
if (mDisableBaseInstance && baseVertex != 0) {
return DAWN_VALIDATION_ERROR("Non-zero base vertex not supported");
}
DrawIndexedCmd* draw = allocator->Allocate<DrawIndexedCmd>(Command::DrawIndexed);
draw->indexCount = indexCount;
draw->instanceCount = instanceCount;
draw->firstIndex = firstIndex;
draw->baseVertex = baseVertex;
draw->firstInstance = firstInstance;
return {};
});
}
void RenderEncoderBase::DrawIndirect(BufferBase* indirectBuffer, uint64_t indirectOffset) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
DAWN_TRY(GetDevice()->ValidateObject(indirectBuffer));
if (indirectOffset % 4 != 0) {
return DAWN_VALIDATION_ERROR("Indirect offset must be a multiple of 4");
}
if (indirectOffset >= indirectBuffer->GetSize() ||
indirectOffset + kDrawIndirectSize > indirectBuffer->GetSize()) {
return DAWN_VALIDATION_ERROR("Indirect offset out of bounds");
}
DrawIndirectCmd* cmd = allocator->Allocate<DrawIndirectCmd>(Command::DrawIndirect);
cmd->indirectBuffer = indirectBuffer;
cmd->indirectOffset = indirectOffset;
mUsageTracker.BufferUsedAs(indirectBuffer, wgpu::BufferUsage::Indirect);
return {};
});
}
void RenderEncoderBase::DrawIndexedIndirect(BufferBase* indirectBuffer,
uint64_t indirectOffset) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
DAWN_TRY(GetDevice()->ValidateObject(indirectBuffer));
if (indirectOffset % 4 != 0) {
return DAWN_VALIDATION_ERROR("Indirect offset must be a multiple of 4");
}
if ((indirectOffset >= indirectBuffer->GetSize() ||
indirectOffset + kDrawIndexedIndirectSize > indirectBuffer->GetSize())) {
return DAWN_VALIDATION_ERROR("Indirect offset out of bounds");
}
DrawIndexedIndirectCmd* cmd =
allocator->Allocate<DrawIndexedIndirectCmd>(Command::DrawIndexedIndirect);
cmd->indirectBuffer = indirectBuffer;
cmd->indirectOffset = indirectOffset;
mUsageTracker.BufferUsedAs(indirectBuffer, wgpu::BufferUsage::Indirect);
return {};
});
}
void RenderEncoderBase::SetPipeline(RenderPipelineBase* pipeline) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
DAWN_TRY(GetDevice()->ValidateObject(pipeline));
SetRenderPipelineCmd* cmd =
allocator->Allocate<SetRenderPipelineCmd>(Command::SetRenderPipeline);
cmd->pipeline = pipeline;
return {};
});
}
void RenderEncoderBase::SetIndexBuffer(BufferBase* buffer, uint64_t offset, uint64_t size) {
GetDevice()->EmitDeprecationWarning(
"RenderEncoderBase::SetIndexBuffer is deprecated. Use RenderEncoderBase::SetIndexBufferWithFormat instead");
SetIndexBufferCommon(buffer, wgpu::IndexFormat::Undefined, offset, size, false);
}
void RenderEncoderBase::SetIndexBufferWithFormat(BufferBase* buffer, wgpu::IndexFormat format,
uint64_t offset, uint64_t size) {
SetIndexBufferCommon(buffer, format, offset, size, true);
}
void RenderEncoderBase::SetIndexBufferCommon(BufferBase* buffer, wgpu::IndexFormat format,
uint64_t offset, uint64_t size,
bool requireFormat) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
DAWN_TRY(GetDevice()->ValidateObject(buffer));
DAWN_TRY(ValidateIndexFormat(format));
uint64_t bufferSize = buffer->GetSize();
if (offset > bufferSize) {
return DAWN_VALIDATION_ERROR("Offset larger than the buffer size");
}
uint64_t remainingSize = bufferSize - offset;
if (size == 0) {
size = remainingSize;
} else {
if (size > remainingSize) {
return DAWN_VALIDATION_ERROR("Size + offset larger than the buffer size");
}
}
if (requireFormat && format == wgpu::IndexFormat::Undefined) {
return DAWN_VALIDATION_ERROR("Index format must be specified");
} else if (!requireFormat) {
ASSERT(format == wgpu::IndexFormat::Undefined);
}
SetIndexBufferCmd* cmd =
allocator->Allocate<SetIndexBufferCmd>(Command::SetIndexBuffer);
cmd->buffer = buffer;
cmd->format = format;
cmd->offset = offset;
cmd->size = size;
mUsageTracker.BufferUsedAs(buffer, wgpu::BufferUsage::Index);
return {};
});
}
void RenderEncoderBase::SetVertexBuffer(uint32_t slot,
BufferBase* buffer,
uint64_t offset,
uint64_t size) {
mEncodingContext->TryEncode(this, [&](CommandAllocator* allocator) -> MaybeError {
DAWN_TRY(GetDevice()->ValidateObject(buffer));
if (slot >= kMaxVertexBuffers) {
return DAWN_VALIDATION_ERROR("Vertex buffer slot out of bounds");
}
uint64_t bufferSize = buffer->GetSize();
if (offset > bufferSize) {
return DAWN_VALIDATION_ERROR("Offset larger than the buffer size");
}
uint64_t remainingSize = bufferSize - offset;
if (size == 0) {
size = remainingSize;
} else {
if (size > remainingSize) {
return DAWN_VALIDATION_ERROR("Size + offset larger than the buffer size");
}
}
SetVertexBufferCmd* cmd =
allocator->Allocate<SetVertexBufferCmd>(Command::SetVertexBuffer);
cmd->slot = VertexBufferSlot(static_cast<uint8_t>(slot));
cmd->buffer = buffer;
cmd->offset = offset;
cmd->size = size;
mUsageTracker.BufferUsedAs(buffer, wgpu::BufferUsage::Vertex);
return {};
});
}
} // namespace dawn_native