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// 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.
#ifndef SRC_DAWN_NATIVE_METAL_COMMANDBUFFERMTL_H_
#define SRC_DAWN_NATIVE_METAL_COMMANDBUFFERMTL_H_
#include <set>
#include <utility>
#include "dawn/native/CommandBuffer.h"
#include "dawn/native/Commands.h"
#include "dawn/native/Error.h"
#import <Metal/Metal.h>
namespace dawn::native {
class CommandEncoder;
struct BeginComputePassCmd;
struct BeginRenderPassCmd;
} // namespace dawn::native
namespace dawn::native::metal {
class CommandRecordingContext;
class Device;
class Texture;
class QuerySet;
void RecordCopyBufferToTexture(CommandRecordingContext* commandContext,
id<MTLBuffer> mtlBuffer,
uint64_t bufferSize,
uint64_t offset,
uint32_t bytesPerRow,
uint32_t rowsPerImage,
Texture* texture,
uint32_t mipLevel,
const Origin3D& origin,
Aspect aspect,
const Extent3D& copySize);
class CommandBuffer final : public CommandBufferBase {
public:
static Ref<CommandBuffer> Create(CommandEncoder* encoder,
const CommandBufferDescriptor* descriptor);
CommandBuffer(CommandEncoder* encoder, const CommandBufferDescriptor* descriptor);
~CommandBuffer() override;
MaybeError FillCommands(CommandRecordingContext* commandContext);
private:
using CommandBufferBase::CommandBufferBase;
MaybeError EncodeComputePass(CommandRecordingContext* commandContext,
BeginComputePassCmd* computePassCmd);
// Empty occlusion queries aren't filled to zero on Apple GPUs. This set is used to
// track which results should be explicitly zero'ed as a workaround. Use of empty queries
// *should* mostly be a degenerate scenario, so this std::set shouldn't be performance-critical.
// The set is passed as nullptr to `EncodeRenderPass` if the workaround is not in use.
using EmptyOcclusionQueries = std::set<std::pair<QuerySet*, uint32_t>>;
MaybeError EncodeRenderPass(id<MTLRenderCommandEncoder> encoder,
BeginRenderPassCmd* renderPassCmd,
EmptyOcclusionQueries* emptyOcclusionQueries);
};
} // namespace dawn::native::metal
#endif // SRC_DAWN_NATIVE_METAL_COMMANDBUFFERMTL_H_