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_SetupProcessor_hpp
16#define sw_SetupProcessor_hpp
17
18#include "Context.hpp"
19#include "RoutineCache.hpp"
20#include "Shader/VertexShader.hpp"
21#include "Shader/PixelShader.hpp"
22#include "Common/Types.hpp"
23
24namespace sw
25{
26 struct Primitive;
27 struct Triangle;
28 struct Polygon;
29 struct Vertex;
30 struct DrawCall;
31 struct DrawData;
32
33 class SetupProcessor
34 {
35 public:
36 struct States : Memset<States>
37 {
38 States() : Memset(this, 0) {}
39
40 uint32_t computeHash();
41
42 bool isDrawPoint : 1;
43 bool isDrawLine : 1;
44 bool isDrawTriangle : 1;
45 bool isDrawSolidTriangle : 1;
46 bool interpolateZ : 1;
47 bool interpolateW : 1;
48 bool perspective : 1;
49 bool pointSprite : 1;
50 unsigned int positionRegister : BITS(VERTEX_OUTPUT_LAST);
51 unsigned int pointSizeRegister : BITS(VERTEX_OUTPUT_LAST);
52 CullMode cullMode : BITS(CULL_LAST);
53 bool twoSidedStencil : 1;
54 bool slopeDepthBias : 1;
55 bool vFace : 1;
56 unsigned int multiSample : 3; // 1, 2 or 4
57 bool rasterizerDiscard : 1;
58
59 struct Gradient
60 {
61 unsigned char attribute : BITS(VERTEX_OUTPUT_LAST);
62 bool flat : 1;
63 bool wrap : 1;
64 };
65
66 union
67 {
68 struct
69 {
70 Gradient color[2][4];
71 Gradient texture[8][4];
72 Gradient fog;
73 };
74
75 Gradient gradient[MAX_FRAGMENT_INPUTS][4];
76 };
77 };
78
79 struct State : States
80 {
81 bool operator==(const State &states) const;
82
83 uint32_t hash;
84 };
85
86 typedef bool (*RoutinePointer)(Primitive *primitive, const Triangle *triangle, const Polygon *polygon, const DrawData *draw);
87
88 SetupProcessor(Context *context);
89
90 ~SetupProcessor();
91
92 protected:
93 State update() const;
94 std::shared_ptr<Routine> routine(const State &state);
95
96 void setRoutineCacheSize(int cacheSize);
97
98 private:
99 Context *const context;
100
101 RoutineCache<State> *routineCache;
102 };
103}
104
105#endif // sw_SetupProcessor_hpp
106