source/mupen64plus-video-arachnoid/src/texture/ImageFormatSelector.cpp

   1 /******************************************************************************
   2  * Arachnoid Graphics Plugin for Mupen64Plus
   3  * http://bitbucket.org/wahrhaft/mupen64plus-video-arachnoid/
   4  *
   5  * Copyright (C) 2007 Kristofer Karlsson, Rickard Niklasson
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20  *****************************************************************************/
  21
  22 //*****************************************************************************
  23 //
  24 // NOTE THAT THIS FILE IS BASED ON MATERIAL FROM glN64.
  25 // http://gln64.emulation64.com/
  26 //
  27 //*****************************************************************************
  28
  29 #include "ImageFormatSelector.h"
  30 #include "CachedTexture.h"
  31 #include "assembler.h"
  32 #include "GBIDefs.h"
  33 #include "m64p.h"
  34 #include "OpenGL.h"
  35 #include "Memory.h"
  36
  37 #ifndef GL_EXT_packed_pixels
  38 #define GL_EXT_packed_pixels                 1
  39     #define GL_UNSIGNED_BYTE_3_3_2_EXT           0x8032
  40     #define GL_UNSIGNED_SHORT_4_4_4_4_EXT        0x8033
  41     #define GL_UNSIGNED_SHORT_5_5_5_1_EXT        0x8034
  42     #define GL_UNSIGNED_INT_8_8_8_8_EXT          0x8035
  43     #define GL_UNSIGNED_INT_10_10_10_2_EXT       0x8036
  44 #endif /* GL_EXT_packed_pixels */
  45
  46 unsigned long long* TMEM = Memory::getTextureMemory();
  47
  48
  49 inline unsigned int GetNone( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
  50 {
  51     return 0x00000000;
  52 }
  53
  54 inline unsigned int GetCI4IA_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
  55 {
  56     unsigned char color4B;
  57
  58     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
  59
  60     if (x & 1)
  61         return IA88_RGBA4444( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)] );
  62     else
  63         return IA88_RGBA4444( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B >> 4)] );
  64 }
  65
  66 inline unsigned int GetCI4IA_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
  67 {
  68     unsigned char color4B;
  69
  70     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
  71
  72     if (x & 1)
  73         return IA88_RGBA8888( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)] );
  74     else
  75         return IA88_RGBA8888( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B >> 4)] );
  76 }
  77
  78 inline unsigned int GetCI4RGBA_RGBA5551( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
  79 {
  80     unsigned char color4B;
  81
  82     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
  83
  84     if (x & 1)
  85         return RGBA5551_RGBA5551( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)] );
  86     else
  87         return RGBA5551_RGBA5551( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B >> 4)] );
  88 }
  89
  90 inline unsigned int GetCI4RGBA_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
  91 {
  92     unsigned char color4B;
  93
  94     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
  95
  96     if (x & 1)
  97         return RGBA5551_RGBA8888( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)] );
  98     else
  99         return RGBA5551_RGBA8888( *(unsigned short*)&TMEM[256 + (palette << 4) + (color4B >> 4)] );
 100 }
 101
 102 inline unsigned int GetIA31_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 103 {
 104     unsigned char color4B;
 105
 106     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
 107
 108     return IA31_RGBA8888( (x & 1) ? (color4B & 0x0F) : (color4B >> 4) );
 109 }
 110
 111 inline unsigned int GetIA31_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 112 {
 113     unsigned char color4B;
 114
 115     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
 116
 117     return IA31_RGBA4444( (x & 1) ? (color4B & 0x0F) : (color4B >> 4) );
 118 }
 119
 120 inline unsigned int GetI4_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 121 {
 122     unsigned char color4B;
 123
 124     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
 125
 126     return I4_RGBA8888( (x & 1) ? (color4B & 0x0F) : (color4B >> 4) );
 127 }
 128
 129 inline unsigned int GetI4_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 130 {
 131     unsigned char color4B;
 132
 133     color4B = ((unsigned char*)src)[(x>>1)^(i<<1)];
 134
 135     return I4_RGBA4444( (x & 1) ? (color4B & 0x0F) : (color4B >> 4) );
 136 }
 137
 138 inline unsigned int GetCI8IA_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 139 {
 140     return IA88_RGBA4444( *(unsigned short*)&TMEM[256 + ((unsigned char*)src)[x^(i<<1)]] );
 141 }
 142
 143 inline unsigned int GetCI8IA_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 144 {
 145     return IA88_RGBA8888( *(unsigned short*)&TMEM[256 + ((unsigned char*)src)[x^(i<<1)]] );
 146 }
 147
 148 inline unsigned int GetCI8RGBA_RGBA5551( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 149 {
 150     return RGBA5551_RGBA5551( *(unsigned short*)&TMEM[256 + ((unsigned char*)src)[x^(i<<1)]] );
 151 }
 152
 153 inline unsigned int GetCI8RGBA_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 154 {
 155     return RGBA5551_RGBA8888( *(unsigned short*)&TMEM[256 + ((unsigned char*)src)[x^(i<<1)]] );
 156 }
 157
 158 inline unsigned int GetIA44_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 159 {
 160     return IA44_RGBA8888(((unsigned char*)src)[x^(i<<1)]);
 161 }
 162
 163 inline unsigned int GetIA44_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 164 {
 165     return IA44_RGBA4444(((unsigned char*)src)[x^(i<<1)]);
 166 }
 167
 168 inline unsigned int GetI8_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 169 {
 170     return I8_RGBA8888(((unsigned char*)src)[x^(i<<1)]);
 171 }
 172
 173 inline unsigned int GetI8_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 174 {
 175     return I8_RGBA4444(((unsigned char*)src)[x^(i<<1)]);
 176 }
 177
 178 inline unsigned int GetRGBA5551_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 179 {
 180     return RGBA5551_RGBA8888( ((unsigned short*)src)[x^i] );
 181 }
 182
 183 inline unsigned int GetRGBA5551_RGBA5551( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 184 {
 185     return RGBA5551_RGBA5551( ((unsigned short*)src)[x^i] );
 186 }
 187
 188 inline unsigned int GetIA88_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 189 {
 190     return IA88_RGBA8888(((unsigned short*)src)[x^i]);
 191 }
 192
 193 inline unsigned int GetIA88_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 194 {
 195     return IA88_RGBA4444(((unsigned short*)src)[x^i]);
 196 }
 197
 198 inline unsigned int GetRGBA8888_RGBA8888( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 199 {
 200     return ((unsigned int*)src)[x^i];
 201 }
 202
 203 inline unsigned int GetRGBA8888_RGBA4444( unsigned long long *src, unsigned short x, unsigned short i, unsigned char palette )
 204 {
 205     return RGBA8888_RGBA4444(((unsigned int*)src)[x^i]);
 206 }
 207
 208 /*
 209 const struct
 210 {
 211     GetTexelFunc    Get16;
 212     unsigned int    glType16;
 213     int              glInternalFormat16;
 214     GetTexelFunc    Get32;
 215     unsigned int     glType32;
 216     int                glInternalFormat32;
 217     unsigned int   autoFormat, lineShift, maxTexels;
 218 }
 219 */
 220 ImageFormat ImageFormatSelector::imageFormats[4][5]  =
 221 { //        Get16                    glType16                        glInternalFormat16    Get32                   glType32             glInternalFormat32   autoFormat
 222     { // 4-bit
 223         {    GetCI4RGBA_RGBA5551,    GL_UNSIGNED_SHORT_5_5_5_1_EXT,  GL_RGB5_A1,           GetCI4RGBA_RGBA8888,    GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGB5_A1, 4, 4096 }, // CI (Banjo-Kazooie uses this, doesn't make sense, but it works...)
 224         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 4, 8192 }, // YUV
 225         {    GetCI4RGBA_RGBA5551,    GL_UNSIGNED_SHORT_5_5_5_1_EXT,  GL_RGB5_A1,           GetCI4RGBA_RGBA8888,    GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGB5_A1, 4, 4096 }, // CI
 226         {    GetIA31_RGBA4444,       GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetIA31_RGBA8888,       GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 4, 8192 }, // IA
 227         {    GetI4_RGBA4444,         GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetI4_RGBA8888,         GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 4, 8192 }, // I
 228     },
 229     { // 8-bit
 230         {    GetCI8RGBA_RGBA5551,    GL_UNSIGNED_SHORT_5_5_5_1_EXT,  GL_RGB5_A1,           GetCI8RGBA_RGBA8888,    GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGB5_A1, 3, 2048 }, // RGBA
 231         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 4096 }, // YUV
 232         {    GetCI8RGBA_RGBA5551,    GL_UNSIGNED_SHORT_5_5_5_1_EXT,  GL_RGB5_A1,           GetCI8RGBA_RGBA8888,    GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGB5_A1, 3, 2048 }, // CI
 233         {    GetIA44_RGBA4444,       GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetIA44_RGBA8888,       GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 3, 4096 }, // IA
 234         {    GetI8_RGBA4444,         GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetI8_RGBA8888,         GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA8, 3, 4096 }, // I
 235     },
 236     { // 16-bit
 237         {    GetRGBA5551_RGBA5551,   GL_UNSIGNED_SHORT_5_5_5_1_EXT,  GL_RGB5_A1,           GetRGBA5551_RGBA8888,   GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGB5_A1, 2, 2048 }, // RGBA
 238         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 2, 2048 }, // YUV
 239         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 2048 }, // CI
 240         {    GetIA88_RGBA4444,       GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetIA88_RGBA8888,       GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA8, 2, 2048 }, // IA
 241         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 2048 }, // I
 242     },
 243     { // 32-bit
 244         {    GetRGBA8888_RGBA4444,   GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetRGBA8888_RGBA8888,   GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA8, 2, 1024 }, // RGBA
 245         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 1024 }, // YUV
 246         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 1024 }, // CI
 247         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 1024 }, // IA
 248         {    GetNone,                GL_UNSIGNED_SHORT_4_4_4_4_EXT,  GL_RGBA4,             GetNone,                GL_UNSIGNED_BYTE,    GL_RGBA8,            GL_RGBA4, 0, 1024 }, // I
 249     }
 250 };
 251
 252 //-----------------------------------------------------------------------------
 253 //! Constructor
 254 //-----------------------------------------------------------------------------
 255 ImageFormatSelector::ImageFormatSelector()
 256 {
 257 }
 258
 259 //-----------------------------------------------------------------------------
 260 //! Destructor
 261 //-----------------------------------------------------------------------------
 262 ImageFormatSelector::~ImageFormatSelector()
 263 {
 264
 265 }
 266
 267 //-----------------------------------------------------------------------------
 268 // Detect Image Format
 269 //-----------------------------------------------------------------------------
 270 void ImageFormatSelector::detectImageFormat(CachedTexture* texture, unsigned int textureBitDepth, GetTexelFunc& getTexelFunc, unsigned int& internalFormat, int& imageType, unsigned int textureLUT)
 271 {
 272     if (((imageFormats[texture->size][texture->format].autoFormat == GL_RGBA8) ||
 273         ((texture->format == G_IM_FMT_CI) && (textureLUT == G_TT_IA16)) ||
 274         (textureBitDepth == 2)) && (textureBitDepth != 0))
 275     {
 276          texture->m_textureSize = (texture->realWidth * texture->realHeight) << 2;
 277         if ((texture->format == G_IM_FMT_CI) && (textureLUT == G_TT_IA16))
 278         {
 279             if (texture->size == G_IM_SIZ_4b)
 280                 getTexelFunc = GetCI4IA_RGBA8888;
 281             else
 282                 getTexelFunc = GetCI8IA_RGBA8888;
 283
 284             internalFormat = GL_RGBA8;
 285             imageType = GL_UNSIGNED_BYTE;
 286         }
 287         else
 288         {
 289             getTexelFunc = imageFormats[texture->size][texture->format].Get32;
 290             internalFormat = imageFormats[texture->size][texture->format].glInternalFormat32;
 291             imageType = imageFormats[texture->size][texture->format].glType32;
 292         }
 293     }
 294     else
 295     {
 296         texture->m_textureSize = (texture->realWidth * texture->realHeight) << 1;
 297         if ((texture->format == G_IM_FMT_CI) && (textureLUT == G_TT_IA16))
 298         {
 299             if (texture->size == G_IM_SIZ_4b)
 300                 getTexelFunc = GetCI4IA_RGBA4444;
 301             else
 302                 getTexelFunc = GetCI8IA_RGBA4444;
 303
 304             internalFormat = GL_RGBA4;
 305             imageType = GL_UNSIGNED_SHORT_4_4_4_4_EXT;
 306         }
 307         else
 308         {
 309             getTexelFunc = imageFormats[texture->size][texture->format].Get16;
 310             internalFormat = imageFormats[texture->size][texture->format].glInternalFormat16;
 311             imageType = imageFormats[texture->size][texture->format].glType16;
 312         }
 313     }
 314 }