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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// 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 sw_VertexProcessor_hpp
#define sw_VertexProcessor_hpp
#include "Matrix.hpp"
#include "Context.hpp"
#include "RoutineCache.hpp"
#include "Pipeline/VertexShader.hpp"
#include "Pipeline/SpirvShader.hpp"
namespace sw
{
struct DrawData;
struct VertexCache // FIXME: Variable size
{
void clear();
Vertex vertex[16][4];
unsigned int tag[16];
int drawCall;
};
struct VertexTask
{
unsigned int vertexCount;
unsigned int primitiveStart;
VertexCache vertexCache;
};
class VertexProcessor
{
public:
struct States
{
unsigned int computeHash();
uint64_t shaderID;
bool fixedFunction : 1; // TODO: Eliminate by querying shader.
bool textureSampling : 1; // TODO: Eliminate by querying shader.
unsigned int positionRegister : BITS(MAX_VERTEX_OUTPUTS); // TODO: Eliminate by querying shader.
unsigned int pointSizeRegister : BITS(MAX_VERTEX_OUTPUTS); // TODO: Eliminate by querying shader.
bool transformFeedbackQueryEnabled : 1;
uint64_t transformFeedbackEnabled : 64;
unsigned char verticesPerPrimitive : 2; // 1 (points), 2 (lines) or 3 (triangles)
bool multiSampling : 1;
Sampler::State sampler[VERTEX_TEXTURE_IMAGE_UNITS];
struct Input
{
operator bool() const // Returns true if stream contains data
{
return count != 0;
}
StreamType type : BITS(STREAMTYPE_LAST);
unsigned int count : 3;
bool normalized : 1;
unsigned int attribType : BITS(SpirvShader::ATTRIBTYPE_LAST);
};
struct Output
{
union
{
unsigned char write : 4;
struct
{
unsigned char xWrite : 1;
unsigned char yWrite : 1;
unsigned char zWrite : 1;
unsigned char wWrite : 1;
};
};
union
{
unsigned char clamp : 4;
struct
{
unsigned char xClamp : 1;
unsigned char yClamp : 1;
unsigned char zClamp : 1;
unsigned char wClamp : 1;
};
};
};
Input input[MAX_VERTEX_INPUTS];
Output output[MAX_VERTEX_OUTPUTS];
};
struct State : States
{
State();
bool operator==(const State &state) const;
unsigned int hash;
};
typedef void (*RoutinePointer)(Vertex *output, unsigned int *batch, VertexTask *vertexTask, DrawData *draw);
VertexProcessor(Context *context);
virtual ~VertexProcessor();
void setInputStream(int index, const Stream &stream);
void resetInputStreams();
void setFloatConstant(unsigned int index, const float value[4]);
void setIntegerConstant(unsigned int index, const int integer[4]);
void setBooleanConstant(unsigned int index, int boolean);
void setUniformBuffer(int index, sw::Resource* uniformBuffer, int offset);
void lockUniformBuffers(byte** u, sw::Resource* uniformBuffers[]);
void setTransformFeedbackBuffer(int index, sw::Resource* transformFeedbackBuffer, int offset, unsigned int reg, unsigned int row, unsigned int col, unsigned int stride);
void lockTransformFeedbackBuffers(byte** t, unsigned int* v, unsigned int* r, unsigned int* c, unsigned int* s, sw::Resource* transformFeedbackBuffers[]);
void setInstanceID(int instanceID);
void setTextureFilter(unsigned int sampler, FilterType textureFilter);
void setMipmapFilter(unsigned int sampler, MipmapType mipmapFilter);
void setGatherEnable(unsigned int sampler, bool enable);
void setAddressingModeU(unsigned int sampler, AddressingMode addressingMode);
void setAddressingModeV(unsigned int sampler, AddressingMode addressingMode);
void setAddressingModeW(unsigned int sampler, AddressingMode addressingMode);
void setReadSRGB(unsigned int sampler, bool sRGB);
void setMipmapLOD(unsigned int sampler, float bias);
void setBorderColor(unsigned int sampler, const Color<float> &borderColor);
void setMaxAnisotropy(unsigned int stage, float maxAnisotropy);
void setHighPrecisionFiltering(unsigned int sampler, bool highPrecisionFiltering);
void setSwizzleR(unsigned int sampler, SwizzleType swizzleR);
void setSwizzleG(unsigned int sampler, SwizzleType swizzleG);
void setSwizzleB(unsigned int sampler, SwizzleType swizzleB);
void setSwizzleA(unsigned int sampler, SwizzleType swizzleA);
void setCompareFunc(unsigned int sampler, CompareFunc compare);
void setBaseLevel(unsigned int sampler, int baseLevel);
void setMaxLevel(unsigned int sampler, int maxLevel);
void setMinLod(unsigned int sampler, float minLod);
void setMaxLod(unsigned int sampler, float maxLod);
void setPointSizeMin(float pointSizeMin);
void setPointSizeMax(float pointSizeMax);
void setTransformFeedbackQueryEnabled(bool enable);
void enableTransformFeedback(uint64_t enable);
protected:
const State update(DrawType drawType);
Routine *routine(const State &state);
void setRoutineCacheSize(int cacheSize);
// Shader constants
float4 c[VERTEX_UNIFORM_VECTORS + 1]; // One extra for indices out of range, c[VERTEX_UNIFORM_VECTORS] = {0, 0, 0, 0}
int4 i[16];
bool b[16];
float pointSizeMin;
float pointSizeMax;
private:
struct UniformBufferInfo
{
UniformBufferInfo();
Resource* buffer;
int offset;
};
UniformBufferInfo uniformBufferInfo[MAX_UNIFORM_BUFFER_BINDINGS];
struct TransformFeedbackInfo
{
TransformFeedbackInfo();
Resource* buffer;
unsigned int offset;
unsigned int reg;
unsigned int row;
unsigned int col;
unsigned int stride;
};
TransformFeedbackInfo transformFeedbackInfo[MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS];
Context *const context;
RoutineCache<State> *routineCache;
};
}
#endif // sw_VertexProcessor_hpp