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_VertexRoutine_hpp
16#define sw_VertexRoutine_hpp
17
18#include "ShaderCore.hpp"
19#include "SpirvShader.hpp"
20#include "Device/Color.hpp"
21#include "Device/VertexProcessor.hpp"
22
23namespace vk
24{
25 class PipelineLayout;
26} // namespace vk
27
28namespace sw
29{
30 class VertexRoutinePrototype : public VertexRoutineFunction
31 {
32 public:
33 VertexRoutinePrototype() : vertex(Arg<0>()), batch(Arg<1>()), task(Arg<2>()), data(Arg<3>()) {}
34 virtual ~VertexRoutinePrototype() {}
35
36 protected:
37 Pointer<Byte> vertex;
38 Pointer<UInt> batch;
39 Pointer<Byte> task;
40 Pointer<Byte> data;
41 };
42
43 class VertexRoutine : public VertexRoutinePrototype
44 {
45 public:
46 VertexRoutine(
47 const VertexProcessor::State &state,
48 vk::PipelineLayout const *pipelineLayout,
49 SpirvShader const *spirvShader);
50 virtual ~VertexRoutine();
51
52 void generate();
53
54 protected:
55 Pointer<Byte> constants;
56
57 Int clipFlags;
58
59 SpirvRoutine routine;
60
61 const VertexProcessor::State &state;
62 SpirvShader const * const spirvShader;
63
64 private:
65 virtual void program(Pointer<UInt> &batch, UInt& vertexCount) = 0;
66
67 typedef VertexProcessor::State::Input Stream;
68
69 Vector4f readStream(Pointer<Byte> &buffer, UInt &stride, const Stream &stream, Pointer<UInt> &batch,
70 bool robustBufferAccess, UInt& robustnessSize, Int baseVertex);
71 void readInput(Pointer<UInt> &batch);
72 void computeClipFlags();
73 void writeCache(Pointer<Byte> &vertexCache, Pointer<UInt> &tagCache, Pointer<UInt> &batch);
74 void writeVertex(const Pointer<Byte> &vertex, Pointer<Byte> &cacheEntry);
75 };
76}
77
78#endif // sw_VertexRoutine_hpp
79