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1 | /* |
2 | Copyright (C) 2005 Rice1964 |
3 | |
4 | This program is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU General Public License |
6 | as published by the Free Software Foundation; either version 2 |
7 | of the License, or (at your option) any later version. |
8 | |
9 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, write to the Free Software |
16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
17 | */ |
18 | |
19 | #ifndef _OGL_FRAGMENT_SHADER_H_ |
20 | #define _OGL_FRAGMENT_SHADER_H_ |
21 | |
22 | #include <vector> |
23 | |
24 | #include "osal_opengl.h" |
25 | |
26 | #include "OGLCombiner.h" |
27 | #include "OGLExtCombiner.h" |
28 | #include "GeneralCombiner.h" |
29 | |
30 | typedef struct { |
31 | uint32 dwMux0; |
32 | uint32 dwMux1; |
33 | |
34 | bool fogIsUsed; |
35 | bool alphaTest; |
36 | GLuint fragmentShaderID; |
37 | GLuint vertexShaderID; |
38 | GLuint programID; |
39 | |
40 | GLint PrimColorLocation; |
41 | GLint EnvColorLocation; |
42 | GLint PrimFracLocation; |
43 | GLint EnvFracLocation; |
44 | GLint AlphaRefLocation; |
45 | GLint FogColorLocation; |
46 | GLint FogMinMaxLocation; |
47 | |
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48 | float PrimColors[4]; |
49 | float EnvColors[4]; |
50 | float PrimLODFrac; |
51 | float EnvLODFrac; |
52 | float AlphaRef; |
53 | float FogColors[4]; |
54 | float FogMin; |
55 | float FogMax; |
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56 | } OGLShaderCombinerSaveType; |
57 | |
58 | |
59 | class COGL_FragmentProgramCombiner : public COGLColorCombiner4 |
60 | { |
61 | public: |
62 | bool Initialize(void); |
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63 | void SetFogState(bool bEnable) |
64 | { |
65 | bFogState = bEnable; |
66 | } |
67 | void SetAlphaTestState(bool bEnable) |
68 | { |
69 | bAlphaTestState = bEnable; |
70 | } |
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71 | |
72 | protected: |
73 | friend class OGLDeviceBuilder; |
74 | |
75 | void DisableCombiner(void); |
76 | void InitCombinerCycleCopy(void); |
77 | void InitCombinerCycleFill(void); |
78 | void InitCombinerCycle12(void); |
79 | |
80 | COGL_FragmentProgramCombiner(CRender *pRender); |
81 | ~COGL_FragmentProgramCombiner(); |
82 | |
83 | bool m_bFragmentProgramIsSupported; |
84 | std::vector<OGLShaderCombinerSaveType> m_vCompiledShaders; |
85 | |
86 | private: |
87 | virtual int ParseDecodedMux(); |
88 | virtual void GenerateProgramStr(); |
89 | int FindCompiledMux(); |
90 | virtual void GenerateCombinerSetting(int index); |
91 | virtual void GenerateCombinerSettingConstants(int index); |
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92 | float m_AlphaRef; |
93 | bool bAlphaTestState; |
94 | bool bAlphaTestPreviousState; |
95 | bool bFogState; |
96 | bool bFogPreviousState; |
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97 | |
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98 | void UseProgram(GLuint program); |
99 | GLuint currentProgram; |
100 | |
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101 | #ifdef DEBUGGER |
102 | void DisplaySimpleMuxString(void); |
103 | #endif |
104 | |
105 | }; |
106 | |
107 | |
108 | |
109 | class COGLFragmentShaderCombiner : public COGLColorCombiner |
110 | { |
111 | public: |
112 | bool Initialize(void); |
113 | void InitCombinerBlenderForSimpleTextureDraw(uint32 tile=0); |
114 | protected: |
115 | friend class OGLDeviceBuilder; |
116 | |
117 | void DisableCombiner(void); |
118 | void InitCombinerCycleCopy(void); |
119 | void InitCombinerCycleFill(void); |
120 | void InitCombinerCycle12(void); |
121 | |
122 | COGLFragmentShaderCombiner(CRender *pRender); |
123 | ~COGLFragmentShaderCombiner(); |
124 | |
125 | bool m_bShaderIsSupported; |
126 | |
127 | #ifdef DEBUGGER |
128 | void DisplaySimpleMuxString(void); |
129 | #endif |
130 | |
131 | }; |
132 | |
133 | |
134 | #endif |
135 | |