64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
// 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_PixelShader_hpp
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#define sw_PixelShader_hpp
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#include "Shader.hpp"
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#include "Main/Config.hpp"
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namespace sw
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{
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class PixelShader : public Shader
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{
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public:
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explicit PixelShader(const PixelShader *ps = 0);
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explicit PixelShader(const unsigned long *token);
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virtual ~PixelShader();
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static int validate(const unsigned long *const token); // Returns number of instructions if valid
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bool depthOverride() const;
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bool containsKill() const;
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bool containsCentroid() const;
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bool usesDiffuse(int component) const;
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bool usesSpecular(int component) const;
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bool usesTexture(int coordinate, int component) const;
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void setInput(int inputIdx, int nbComponents, const Semantic& semantic);
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const Semantic& getInput(int inputIdx, int component) const;
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void declareVPos() { vPosDeclared = true; }
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void declareVFace() { vFaceDeclared = true; }
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bool isVPosDeclared() const { return vPosDeclared; }
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bool isVFaceDeclared() const { return vFaceDeclared; }
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private:
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void analyze();
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void analyzeZOverride();
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void analyzeKill();
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void analyzeInterpolants();
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Semantic input[MAX_FRAGMENT_INPUTS][4];
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bool vPosDeclared;
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bool vFaceDeclared;
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bool zOverride;
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bool kill;
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bool centroid;
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};
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}
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#endif // sw_PixelShader_hpp
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