1// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#ifndef sw_PixelProgram_hpp
16#define sw_PixelProgram_hpp
17
18#include "PixelRoutine.hpp"
19
20namespace sw
21{
22 class PixelProgram : public PixelRoutine
23 {
24 public:
25 PixelProgram(
26 const PixelProcessor::State &state,
27 vk::PipelineLayout const *pipelineLayout,
28 SpirvShader const *spirvShader,
29 const vk::DescriptorSet::Bindings &descriptorSets) :
30 PixelRoutine(state, pipelineLayout, spirvShader, descriptorSets)
31 {
32 }
33
34 virtual ~PixelProgram() {}
35
36 protected:
37 virtual void setBuiltins(Int &x, Int &y, Float4(&z)[4], Float4 &w, Int cMask[4]);
38 virtual void applyShader(Int cMask[4], Int sMask[4], Int zMask[4]);
39 virtual Bool alphaTest(Int cMask[4]);
40 virtual void rasterOperation(Pointer<Byte> cBuffer[4], Int &x, Int sMask[4], Int zMask[4], Int cMask[4]);
41
42 private:
43 // Color outputs
44 Vector4f c[RENDERTARGETS];
45
46 // Raster operations
47 void clampColor(Vector4f oC[RENDERTARGETS]);
48
49 Int4 maskAny(Int cMask[4]) const;
50 Int4 maskAny(Int cMask[4], Int sMask[4], Int zMask[4]) const;
51 Float4 linearToSRGB(const Float4 &x);
52 };
53}
54
55#endif
56