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// Copyright 2017 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef SRC_DAWN_NATIVE_OPENGL_PIPELINELAYOUTGL_H_
#define SRC_DAWN_NATIVE_OPENGL_PIPELINELAYOUTGL_H_
#include "dawn/native/PipelineLayout.h"
#include "dawn/common/ityp_array.h"
#include "dawn/common/ityp_vector.h"
#include "dawn/native/BindingInfo.h"
#include "dawn/native/opengl/opengl_platform.h"
namespace dawn::native::opengl {
class Device;
class PipelineLayout final : public PipelineLayoutBase {
public:
PipelineLayout(Device* device, const UnpackedPtr<PipelineLayoutDescriptor>& descriptor);
// GL backend does not support separate bind group index
// BindingIndexInfo is a map from BindingPoint(group, binding) to a flattened GLuint binding
// number.
using BindingIndexInfo = PerBindGroup<ityp::vector<BindingIndex, GLuint>>;
const BindingIndexInfo& GetBindingIndexInfo() const;
GLuint GetTextureUnitsUsed() const;
size_t GetNumSamplers() const;
size_t GetNumSampledTextures() const;
GLuint GetInternalUniformBinding() const;
enum PushConstantLocation {
FirstVertex = 0,
FirstInstance = 1,
MinDepth = 2,
MaxDepth = 3,
};
private:
~PipelineLayout() override = default;
BindingIndexInfo mIndexInfo;
size_t mNumSamplers;
size_t mNumSampledTextures;
GLuint mInternalUniformBinding;
};
} // namespace dawn::native::opengl
#endif // SRC_DAWN_NATIVE_OPENGL_PIPELINELAYOUTGL_H_