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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_SetupProcessor_hpp
#define sw_SetupProcessor_hpp
#include "Context.hpp"
#include "Memset.hpp"
#include "RoutineCache.hpp"
#include "System/Types.hpp"
#include <Pipeline/SpirvShader.hpp>
#include <memory>
namespace sw {
struct Primitive;
struct Triangle;
struct Polygon;
struct Vertex;
struct DrawCall;
struct DrawData;
using SetupFunction = FunctionT<int(Primitive *primitive, const Triangle *triangle, const Polygon *polygon, const DrawData *draw)>;
class SetupProcessor
{
public:
struct States : Memset<States>
{
States()
: Memset(this, 0)
{}
uint32_t computeHash();
bool isDrawPoint : 1;
bool isDrawLine : 1;
bool isDrawTriangle : 1;
bool fixedPointDepthBuffer : 1;
bool applyConstantDepthBias : 1;
bool applySlopeDepthBias : 1;
bool applyDepthBiasClamp : 1;
bool interpolateZ : 1;
bool interpolateW : 1;
VkFrontFace frontFace : BITS(VK_FRONT_FACE_MAX_ENUM);
VkCullModeFlags cullMode : BITS(VK_CULL_MODE_FLAG_BITS_MAX_ENUM);
unsigned int multiSampleCount : 3; // 1, 2 or 4
bool enableMultiSampling : 1;
bool rasterizerDiscard : 1;
unsigned int numClipDistances : 4; // [0 - 8]
unsigned int numCullDistances : 4; // [0 - 8]
SpirvShader::InterfaceComponent gradient[MAX_INTERFACE_COMPONENTS];
};
struct State : States
{
bool operator==(const State &states) const;
uint32_t hash;
};
using RoutineType = SetupFunction::RoutineType;
SetupProcessor();
State update(const vk::GraphicsState &pipelineState, const sw::SpirvShader *fragmentShader, const sw::SpirvShader *vertexShader, const vk::Attachments &attachments) const;
RoutineType routine(const State &state);
void setRoutineCacheSize(int cacheSize);
private:
using RoutineCacheType = RoutineCache<State, SetupFunction::CFunctionType>;
std::unique_ptr<RoutineCacheType> routineCache;
};
} // namespace sw
namespace std {
template<>
struct hash<sw::SetupProcessor::State>
{
uint64_t operator()(const sw::SetupProcessor::State &state) const
{
return state.hash;
}
};
} // namespace std
#endif // sw_SetupProcessor_hpp