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//
// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// DynamicHLSL.h: Interface for link and run-time HLSL generation
//
#ifndef LIBANGLE_RENDERER_D3D_DYNAMICHLSL_H_
#define LIBANGLE_RENDERER_D3D_DYNAMICHLSL_H_
#include <map>
#include <vector>
#include "angle_gl.h"
#include "common/angleutils.h"
#include "libANGLE/Constants.h"
#include "libANGLE/Program.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/d3d/RendererD3D.h"
namespace sh
{
struct Attribute;
struct ShaderVariable;
}
namespace gl
{
class InfoLog;
struct VariableLocation;
struct VertexAttribute;
}
namespace rx
{
struct PackedVarying;
class ProgramD3DMetadata;
class ShaderD3D;
class VaryingPacking;
struct PixelShaderOutputVariable
{
GLenum type;
std::string name;
std::string source;
size_t outputIndex;
};
class DynamicHLSL : angle::NonCopyable
{
public:
explicit DynamicHLSL(RendererD3D *const renderer);
std::string generateVertexShaderForInputLayout(
const std::string &sourceShader,
const gl::InputLayout &inputLayout,
const std::vector<sh::Attribute> &shaderAttributes) const;
std::string generatePixelShaderForOutputSignature(
const std::string &sourceShader,
const std::vector<PixelShaderOutputVariable> &outputVariables,
bool usesFragDepth,
const std::vector<GLenum> &outputLayout) const;
bool generateShaderLinkHLSL(const gl::ContextState &data,
const gl::ProgramState &programData,
const ProgramD3DMetadata &programMetadata,
const VaryingPacking &varyingPacking,
std::string *pixelHLSL,
std::string *vertexHLSL) const;
std::string generateGeometryShaderPreamble(const VaryingPacking &varyingPacking) const;
std::string generateGeometryShaderHLSL(gl::PrimitiveType primitiveType,
const gl::ContextState &data,
const gl::ProgramState &programData,
const bool useViewScale,
const std::string &preambleString) const;
void getPixelShaderOutputKey(const gl::ContextState &data,
const gl::ProgramState &programData,
const ProgramD3DMetadata &metadata,
std::vector<PixelShaderOutputVariable> *outPixelShaderKey);
private:
RendererD3D *const mRenderer;
void generateVaryingLinkHLSL(ShaderType shaderType,
const VaryingPacking &varyingPacking,
std::stringstream &linkStream) const;
void generateVaryingHLSL(const VaryingPacking &varyingPacking,
std::stringstream &hlslStream) const;
// Prepend an underscore
static std::string decorateVariable(const std::string &name);
std::string generateAttributeConversionHLSL(gl::VertexFormatType vertexFormatType,
const sh::ShaderVariable &shaderAttrib) const;
};
std::string GetVaryingSemantic(int majorShaderModel, bool programUsesPointSize);
}
#endif // LIBANGLE_RENDERER_D3D_DYNAMICHLSL_H_
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