// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef sw_SetupProcessor_hpp
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#define sw_SetupProcessor_hpp
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#include "Context.hpp"
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#include "RoutineCache.hpp"
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#include "Shader/VertexShader.hpp"
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#include "Shader/PixelShader.hpp"
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#include "Common/Types.hpp"
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namespace sw
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{
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struct Primitive;
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struct Triangle;
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struct Polygon;
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struct Vertex;
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struct DrawCall;
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struct DrawData;
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class SetupProcessor
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{
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public:
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struct States
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{
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unsigned int computeHash();
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bool isDrawPoint : 1;
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bool isDrawLine : 1;
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bool isDrawTriangle : 1;
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bool isDrawSolidTriangle : 1;
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bool interpolateZ : 1;
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bool interpolateW : 1;
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bool perspective : 1;
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bool pointSprite : 1;
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unsigned int positionRegister : BITS(VERTEX_OUTPUT_LAST);
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unsigned int pointSizeRegister : BITS(VERTEX_OUTPUT_LAST);
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CullMode cullMode : BITS(CULL_LAST);
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bool twoSidedStencil : 1;
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bool slopeDepthBias : 1;
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bool vFace : 1;
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unsigned int multiSample : 3; // 1, 2 or 4
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bool rasterizerDiscard : 1;
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struct Gradient
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{
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unsigned char attribute : BITS(VERTEX_OUTPUT_LAST);
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bool flat : 1;
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bool wrap : 1;
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};
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union
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{
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struct
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{
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Gradient color[2][4];
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Gradient texture[8][4];
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Gradient fog;
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};
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Gradient gradient[MAX_FRAGMENT_INPUTS][4];
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};
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};
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struct State : States
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{
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State(int i = 0);
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bool operator==(const State &states) const;
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unsigned int hash;
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};
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typedef bool (*RoutinePointer)(Primitive *primitive, const Triangle *triangle, const Polygon *polygon, const DrawData *draw);
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SetupProcessor(Context *context);
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~SetupProcessor();
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protected:
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State update() const;
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Routine *routine(const State &state);
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void setRoutineCacheSize(int cacheSize);
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private:
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Context *const context;
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RoutineCache<State> *routineCache;
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};
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}
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#endif // sw_SetupProcessor_hpp
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