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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 "RoutineCache.hpp"
#include "Shader/VertexShader.hpp"
#include "Shader/PixelShader.hpp"
#include "Common/Types.hpp"
namespace sw
{
struct Primitive;
struct Triangle;
struct Polygon;
struct Vertex;
struct DrawCall;
struct DrawData;
class SetupProcessor
{
public:
struct States
{
unsigned int computeHash();
bool isDrawPoint : 1;
bool isDrawLine : 1;
bool isDrawTriangle : 1;
bool isDrawSolidTriangle : 1;
bool interpolateZ : 1;
bool interpolateW : 1;
bool perspective : 1;
bool pointSprite : 1;
unsigned int positionRegister : BITS(VERTEX_OUTPUT_LAST);
unsigned int pointSizeRegister : BITS(VERTEX_OUTPUT_LAST);
CullMode cullMode : BITS(CULL_LAST);
bool twoSidedStencil : 1;
bool slopeDepthBias : 1;
bool vFace : 1;
unsigned int multiSample : 3; // 1, 2 or 4
bool rasterizerDiscard : 1;
struct Gradient
{
unsigned char attribute : BITS(VERTEX_OUTPUT_LAST);
bool flat : 1;
bool wrap : 1;
};
union
{
struct
{
Gradient color[2][4];
Gradient texture[8][4];
Gradient fog;
};
Gradient gradient[MAX_FRAGMENT_INPUTS][4];
};
};
struct State : States
{
State(int i = 0);
bool operator==(const State &states) const;
unsigned int hash;
};
typedef bool (*RoutinePointer)(Primitive *primitive, const Triangle *triangle, const Polygon *polygon, const DrawData *draw);
SetupProcessor(Context *context);
~SetupProcessor();
protected:
State update() const;
Routine *routine(const State &state);
void setRoutineCacheSize(int cacheSize);
private:
Context *const context;
RoutineCache<State> *routineCache;
};
}
#endif // sw_SetupProcessor_hpp