source/gles2rice/src/OGLCombinerNV.h

   1 /*
   2 Copyright (C) 2003 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_COMBINER_NV_H_
  20 #define _OGL_COMBINER_NV_H_
  21
  22 #include <vector>
  23
  24 #include <SDL_opengl.h>
  25
  26 #include "OGLExtCombiner.h"
  27 #include "OGLDecodedMux.h"
  28
  29 typedef struct {
  30     uint8 a;
  31     uint8 b;
  32     uint8 c;
  33     uint8 d;
  34 } NVGeneralCombinerType;
  35
  36 typedef struct {
  37     uint8 a;
  38     uint8 b;
  39     uint8 c;
  40     uint8 d;
  41     uint8 e;
  42     uint8 f;
  43     uint8 g;
  44 } NVFinalCombinerType;
  45
  46 typedef struct {
  47     GLenum variable;
  48     GLenum input;
  49     GLenum mapping;
  50     GLenum componentUsage;
  51 } NVCombinerInputType;
  52
  53 typedef struct {
  54     GLenum abOutput;
  55     GLenum cdOutput;
  56     GLenum sumOutput;
  57     GLenum scale;
  58     GLenum bias;
  59     GLboolean abDotProduct;
  60     GLboolean cdDotProduct;
  61     GLboolean muxSum;
  62 } NVCombinerOutputType;
  63
  64
  65 typedef struct {
  66     union {
  67         struct {
  68             NVGeneralCombinerType   s1rgb;
  69             NVGeneralCombinerType   s1alpha;
  70             NVGeneralCombinerType   s2rgb;
  71             NVGeneralCombinerType   s2alpha;
  72             NVFinalCombinerType     finalrgb;
  73             NVFinalCombinerType     finalalpha;
  74         };
  75         struct {
  76             NVGeneralCombinerType   generalCombiners[4];
  77             NVFinalCombinerType     finalCombiners[2];
  78         };
  79     };
  80     int     stagesUsed;
  81     uint8   constant0;
  82     uint8   constant1;
  83 } NVRegisterCombinerParserType;
  84
  85 typedef struct {
  86     NVCombinerInputType                 stage1RGB[4];
  87     NVCombinerInputType                 stage1Alpha[4];
  88     NVCombinerOutputType                stage1outputRGB;
  89     NVCombinerOutputType                stage1outputAlpha;
  90
  91     NVCombinerInputType                 stage2RGB[4];
  92     NVCombinerInputType                 stage2Alpha[4];
  93     NVCombinerOutputType                stage2outputRGB;
  94     NVCombinerOutputType                stage2outputAlpha;
  95
  96     NVCombinerInputType                 finalStage[7];
  97
  98     int                                 numOfStages;
  99
 100     uint32                              dwMux0;
 101     uint32                              dwMux1;
 102
 103     uint8                               constant0;
 104     uint8                               constant1;
 105 #ifdef DEBUGGER
 106     NVRegisterCombinerParserType        parseResult;
 107 #endif
 108 } NVRegisterCombinerSettingType;
 109
 110 class COGLColorCombinerNvidia : public COGLColorCombiner4
 111 {
 112 public:
 113     bool Initialize(void);
 114     void InitCombinerBlenderForSimpleTextureDraw(uint32 tile=0);
 115 protected:
 116     friend class OGLDeviceBuilder;
 117
 118     void InitCombinerCycle12(void);
 119     void DisableCombiner(void);
 120     void InitCombinerCycleCopy(void);
 121     void InitCombinerCycleFill(void);
 122
 123
 124     int FindCompiledMux(void);
 125     void GenerateNVRegisterCombinerSetting(int);
 126     void GenerateNVRegisterCombinerSettingConstants(int);               // Compile the decodedMux into NV register combiner setting
 127     void ApplyFogAtFinalStage();
 128
 129     void ParseDecodedMux(NVRegisterCombinerParserType &result);             // Compile the decodedMux into NV register combiner setting
 130     void ParseDecodedMuxForConstant(NVRegisterCombinerParserType &result);              // Compile the decodedMux into NV register combiner setting
 131     int SaveParserResult(const NVRegisterCombinerParserType &result);
 132
 133     int StagesNeedToUse(COGLDecodedMux &mux, N64StageNumberType stage);
 134     int Parse1Mux(COGLDecodedMux &mux, N64StageNumberType stage, NVGeneralCombinerType &res);   // Compile the decodedMux into NV register combiner setting
 135     int Parse1Mux2Stages(COGLDecodedMux &mux, N64StageNumberType stage, NVGeneralCombinerType &res, NVGeneralCombinerType &res2);
 136     int Parse1MuxForStage2AndFinalStage(COGLDecodedMux &mux, N64StageNumberType stage, NVGeneralCombinerType &res, NVFinalCombinerType &fres);
 137     void Parse1MuxForFinalStage(COGLDecodedMux &mux, N64StageNumberType stage, NVFinalCombinerType &fres);
 138     void ByPassFinalStage(NVFinalCombinerType &fres);
 139     void ByPassGeneralStage(NVGeneralCombinerType &res);
 140
 141     GLenum ConstMap(uint8 c);
 142
 143     COGLColorCombinerNvidia(CRender *pRender);
 144     ~COGLColorCombinerNvidia();
 145
 146     std::vector<NVRegisterCombinerSettingType>  m_vCompiledSettings;
 147
 148     bool m_bNVSupported;        // Is this NV OGL extension combiner supported by the video card driver?
 149
 150 #ifdef DEBUGGER
 151     void DisplaySimpleMuxString(void);
 152     void DisplayNVCombinerString(NVRegisterCombinerSettingType &record);
 153 #endif
 154
 155 };
 156
 157 #endif
 158