src/gallium/auxiliary/translate/translate_generic.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28  /*
  29   * Authors:
  30   *   Keith Whitwell <keith@tungstengraphics.com>
  31   */
  32
  33 #include "util/u_memory.h"
  34 #include "pipe/p_state.h"
  35 #include "translate.h"
  36
  37
  38 #define DRAW_DBG 0
  39
  40 typedef void (*fetch_func)(const void *ptr, float *attrib);
  41 typedef void (*emit_func)(const float *attrib, void *ptr);
  42
  43
  44
  45 struct translate_generic {
  46    struct translate translate;
  47
  48    struct {
  49       fetch_func fetch;
  50       unsigned buffer;
  51       unsigned input_offset;
  52       unsigned instance_divisor;
  53
  54       emit_func emit;
  55       unsigned output_offset;
  56
  57       char *input_ptr;
  58       unsigned input_stride;
  59
  60    } attrib[PIPE_MAX_ATTRIBS];
  61
  62    unsigned nr_attrib;
  63 };
  64
  65
  66 static struct translate_generic *translate_generic( struct translate *translate )
  67 {
  68    return (struct translate_generic *)translate;
  69 }
  70
  71 /**
  72  * Fetch a float[4] vertex attribute from memory, doing format/type
  73  * conversion as needed.
  74  *
  75  * This is probably needed/dupliocated elsewhere, eg format
  76  * conversion, texture sampling etc.
  77  */
  78 #define ATTRIB( NAME, SZ, TYPE, FROM, TO )              \
  79 static void                                             \
  80 fetch_##NAME(const void *ptr, float *attrib)            \
  81 {                                                       \
  82    const float defaults[4] = { 0.0f,0.0f,0.0f,1.0f };   \
  83    unsigned i;                                          \
  84                                                         \
  85    for (i = 0; i < SZ; i++) {                           \
  86       attrib[i] = FROM(i);                              \
  87    }                                                    \
  88                                                         \
  89    for (; i < 4; i++) {                                 \
  90       attrib[i] = defaults[i];                          \
  91    }                                                    \
  92 }                                                       \
  93                                                         \
  94 static void                                             \
  95 emit_##NAME(const float *attrib, void *ptr)             \
  96 {  \
  97    unsigned i;                                          \
  98    TYPE *out = (TYPE *)ptr;                             \
  99                                                         \
 100    for (i = 0; i < SZ; i++) {                           \
 101       out[i] = TO(attrib[i]);                           \
 102    }                                                    \
 103 }
 104
 105
 106 #define FROM_64_FLOAT(i)   ((float) ((double *) ptr)[i])
 107 #define FROM_32_FLOAT(i)   (((float *) ptr)[i])
 108
 109 #define FROM_8_USCALED(i)  ((float) ((unsigned char *) ptr)[i])
 110 #define FROM_16_USCALED(i) ((float) ((unsigned short *) ptr)[i])
 111 #define FROM_32_USCALED(i) ((float) ((unsigned int *) ptr)[i])
 112
 113 #define FROM_8_SSCALED(i)  ((float) ((char *) ptr)[i])
 114 #define FROM_16_SSCALED(i) ((float) ((short *) ptr)[i])
 115 #define FROM_32_SSCALED(i) ((float) ((int *) ptr)[i])
 116
 117 #define FROM_8_UNORM(i)    ((float) ((unsigned char *) ptr)[i] / 255.0f)
 118 #define FROM_16_UNORM(i)   ((float) ((unsigned short *) ptr)[i] / 65535.0f)
 119 #define FROM_32_UNORM(i)   ((float) ((unsigned int *) ptr)[i] / 4294967295.0f)
 120
 121 #define FROM_8_SNORM(i)    ((float) ((char *) ptr)[i] / 127.0f)
 122 #define FROM_16_SNORM(i)   ((float) ((short *) ptr)[i] / 32767.0f)
 123 #define FROM_32_SNORM(i)   ((float) ((int *) ptr)[i] / 2147483647.0f)
 124
 125 #define FROM_32_FIXED(i)   (((int *) ptr)[i] / 65536.0f)
 126
 127 #define TO_64_FLOAT(x)   ((double) x)
 128 #define TO_32_FLOAT(x)   (x)
 129
 130 #define TO_8_USCALED(x)  ((unsigned char) x)
 131 #define TO_16_USCALED(x) ((unsigned short) x)
 132 #define TO_32_USCALED(x) ((unsigned int) x)
 133
 134 #define TO_8_SSCALED(x)  ((char) x)
 135 #define TO_16_SSCALED(x) ((short) x)
 136 #define TO_32_SSCALED(x) ((int) x)
 137
 138 #define TO_8_UNORM(x)    ((unsigned char) (x * 255.0f))
 139 #define TO_16_UNORM(x)   ((unsigned short) (x * 65535.0f))
 140 #define TO_32_UNORM(x)   ((unsigned int) (x * 4294967295.0f))
 141
 142 #define TO_8_SNORM(x)    ((char) (x * 127.0f))
 143 #define TO_16_SNORM(x)   ((short) (x * 32767.0f))
 144 #define TO_32_SNORM(x)   ((int) (x * 2147483647.0f))
 145
 146 #define TO_32_FIXED(x)   ((int) (x * 65536.0f))
 147
 148
 149
 150 ATTRIB( R64G64B64A64_FLOAT,   4, double, FROM_64_FLOAT, TO_64_FLOAT )
 151 ATTRIB( R64G64B64_FLOAT,      3, double, FROM_64_FLOAT, TO_64_FLOAT )
 152 ATTRIB( R64G64_FLOAT,         2, double, FROM_64_FLOAT, TO_64_FLOAT )
 153 ATTRIB( R64_FLOAT,            1, double, FROM_64_FLOAT, TO_64_FLOAT )
 154
 155 ATTRIB( R32G32B32A32_FLOAT,   4, float, FROM_32_FLOAT, TO_32_FLOAT )
 156 ATTRIB( R32G32B32_FLOAT,      3, float, FROM_32_FLOAT, TO_32_FLOAT )
 157 ATTRIB( R32G32_FLOAT,         2, float, FROM_32_FLOAT, TO_32_FLOAT )
 158 ATTRIB( R32_FLOAT,            1, float, FROM_32_FLOAT, TO_32_FLOAT )
 159
 160 ATTRIB( R32G32B32A32_USCALED, 4, unsigned, FROM_32_USCALED, TO_32_USCALED )
 161 ATTRIB( R32G32B32_USCALED,    3, unsigned, FROM_32_USCALED, TO_32_USCALED )
 162 ATTRIB( R32G32_USCALED,       2, unsigned, FROM_32_USCALED, TO_32_USCALED )
 163 ATTRIB( R32_USCALED,          1, unsigned, FROM_32_USCALED, TO_32_USCALED )
 164
 165 ATTRIB( R32G32B32A32_SSCALED, 4, int, FROM_32_SSCALED, TO_32_SSCALED )
 166 ATTRIB( R32G32B32_SSCALED,    3, int, FROM_32_SSCALED, TO_32_SSCALED )
 167 ATTRIB( R32G32_SSCALED,       2, int, FROM_32_SSCALED, TO_32_SSCALED )
 168 ATTRIB( R32_SSCALED,          1, int, FROM_32_SSCALED, TO_32_SSCALED )
 169
 170 ATTRIB( R32G32B32A32_UNORM, 4, unsigned, FROM_32_UNORM, TO_32_UNORM )
 171 ATTRIB( R32G32B32_UNORM,    3, unsigned, FROM_32_UNORM, TO_32_UNORM )
 172 ATTRIB( R32G32_UNORM,       2, unsigned, FROM_32_UNORM, TO_32_UNORM )
 173 ATTRIB( R32_UNORM,          1, unsigned, FROM_32_UNORM, TO_32_UNORM )
 174
 175 ATTRIB( R32G32B32A32_SNORM, 4, int, FROM_32_SNORM, TO_32_SNORM )
 176 ATTRIB( R32G32B32_SNORM,    3, int, FROM_32_SNORM, TO_32_SNORM )
 177 ATTRIB( R32G32_SNORM,       2, int, FROM_32_SNORM, TO_32_SNORM )
 178 ATTRIB( R32_SNORM,          1, int, FROM_32_SNORM, TO_32_SNORM )
 179
 180 ATTRIB( R16G16B16A16_USCALED, 4, ushort, FROM_16_USCALED, TO_16_USCALED )
 181 ATTRIB( R16G16B16_USCALED,    3, ushort, FROM_16_USCALED, TO_16_USCALED )
 182 ATTRIB( R16G16_USCALED,       2, ushort, FROM_16_USCALED, TO_16_USCALED )
 183 ATTRIB( R16_USCALED,          1, ushort, FROM_16_USCALED, TO_16_USCALED )
 184
 185 ATTRIB( R16G16B16A16_SSCALED, 4, short, FROM_16_SSCALED, TO_16_SSCALED )
 186 ATTRIB( R16G16B16_SSCALED,    3, short, FROM_16_SSCALED, TO_16_SSCALED )
 187 ATTRIB( R16G16_SSCALED,       2, short, FROM_16_SSCALED, TO_16_SSCALED )
 188 ATTRIB( R16_SSCALED,          1, short, FROM_16_SSCALED, TO_16_SSCALED )
 189
 190 ATTRIB( R16G16B16A16_UNORM, 4, ushort, FROM_16_UNORM, TO_16_UNORM )
 191 ATTRIB( R16G16B16_UNORM,    3, ushort, FROM_16_UNORM, TO_16_UNORM )
 192 ATTRIB( R16G16_UNORM,       2, ushort, FROM_16_UNORM, TO_16_UNORM )
 193 ATTRIB( R16_UNORM,          1, ushort, FROM_16_UNORM, TO_16_UNORM )
 194
 195 ATTRIB( R16G16B16A16_SNORM, 4, short, FROM_16_SNORM, TO_16_SNORM )
 196 ATTRIB( R16G16B16_SNORM,    3, short, FROM_16_SNORM, TO_16_SNORM )
 197 ATTRIB( R16G16_SNORM,       2, short, FROM_16_SNORM, TO_16_SNORM )
 198 ATTRIB( R16_SNORM,          1, short, FROM_16_SNORM, TO_16_SNORM )
 199
 200 ATTRIB( R8G8B8A8_USCALED,   4, ubyte, FROM_8_USCALED, TO_8_USCALED )
 201 ATTRIB( R8G8B8_USCALED,     3, ubyte, FROM_8_USCALED, TO_8_USCALED )
 202 ATTRIB( R8G8_USCALED,       2, ubyte, FROM_8_USCALED, TO_8_USCALED )
 203 ATTRIB( R8_USCALED,         1, ubyte, FROM_8_USCALED, TO_8_USCALED )
 204
 205 ATTRIB( R8G8B8A8_SSCALED,  4, char, FROM_8_SSCALED, TO_8_SSCALED )
 206 ATTRIB( R8G8B8_SSCALED,    3, char, FROM_8_SSCALED, TO_8_SSCALED )
 207 ATTRIB( R8G8_SSCALED,      2, char, FROM_8_SSCALED, TO_8_SSCALED )
 208 ATTRIB( R8_SSCALED,        1, char, FROM_8_SSCALED, TO_8_SSCALED )
 209
 210 ATTRIB( R8G8B8A8_UNORM,  4, ubyte, FROM_8_UNORM, TO_8_UNORM )
 211 ATTRIB( R8G8B8_UNORM,    3, ubyte, FROM_8_UNORM, TO_8_UNORM )
 212 ATTRIB( R8G8_UNORM,      2, ubyte, FROM_8_UNORM, TO_8_UNORM )
 213 ATTRIB( R8_UNORM,        1, ubyte, FROM_8_UNORM, TO_8_UNORM )
 214
 215 ATTRIB( R8G8B8A8_SNORM,  4, char, FROM_8_SNORM, TO_8_SNORM )
 216 ATTRIB( R8G8B8_SNORM,    3, char, FROM_8_SNORM, TO_8_SNORM )
 217 ATTRIB( R8G8_SNORM,      2, char, FROM_8_SNORM, TO_8_SNORM )
 218 ATTRIB( R8_SNORM,        1, char, FROM_8_SNORM, TO_8_SNORM )
 219
 220 ATTRIB( A8R8G8B8_UNORM,       4, ubyte, FROM_8_UNORM, TO_8_UNORM )
 221 /*ATTRIB( R8G8B8A8_UNORM,       4, ubyte, FROM_8_UNORM, TO_8_UNORM )*/
 222
 223 ATTRIB( R32G32B32A32_FIXED,   4, int, FROM_32_FIXED, TO_32_FIXED )
 224 ATTRIB( R32G32B32_FIXED,      3, int, FROM_32_FIXED, TO_32_FIXED )
 225 ATTRIB( R32G32_FIXED,         2, int, FROM_32_FIXED, TO_32_FIXED )
 226 ATTRIB( R32_FIXED,            1, int, FROM_32_FIXED, TO_32_FIXED )
 227
 228
 229
 230 static void
 231 fetch_B8G8R8A8_UNORM(const void *ptr, float *attrib)
 232 {
 233    attrib[2] = FROM_8_UNORM(0);
 234    attrib[1] = FROM_8_UNORM(1);
 235    attrib[0] = FROM_8_UNORM(2);
 236    attrib[3] = FROM_8_UNORM(3);
 237 }
 238
 239 static void
 240 emit_B8G8R8A8_UNORM( const float *attrib, void *ptr)
 241 {
 242    ubyte *out = (ubyte *)ptr;
 243    out[2] = TO_8_UNORM(attrib[0]);
 244    out[1] = TO_8_UNORM(attrib[1]);
 245    out[0] = TO_8_UNORM(attrib[2]);
 246    out[3] = TO_8_UNORM(attrib[3]);
 247 }
 248
 249 static void
 250 fetch_NULL( const void *ptr, float *attrib )
 251 {
 252    attrib[0] = 0;
 253    attrib[1] = 0;
 254    attrib[2] = 0;
 255    attrib[3] = 1;
 256 }
 257
 258 static void
 259 emit_NULL( const float *attrib, void *ptr )
 260 {
 261    /* do nothing is the only sensible option */
 262 }
 263
 264 static fetch_func get_fetch_func( enum pipe_format format )
 265 {
 266    switch (format) {
 267    case PIPE_FORMAT_R64_FLOAT:
 268       return &fetch_R64_FLOAT;
 269    case PIPE_FORMAT_R64G64_FLOAT:
 270       return &fetch_R64G64_FLOAT;
 271    case PIPE_FORMAT_R64G64B64_FLOAT:
 272       return &fetch_R64G64B64_FLOAT;
 273    case PIPE_FORMAT_R64G64B64A64_FLOAT:
 274       return &fetch_R64G64B64A64_FLOAT;
 275
 276    case PIPE_FORMAT_R32_FLOAT:
 277       return &fetch_R32_FLOAT;
 278    case PIPE_FORMAT_R32G32_FLOAT:
 279       return &fetch_R32G32_FLOAT;
 280    case PIPE_FORMAT_R32G32B32_FLOAT:
 281       return &fetch_R32G32B32_FLOAT;
 282    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 283       return &fetch_R32G32B32A32_FLOAT;
 284
 285    case PIPE_FORMAT_R32_UNORM:
 286       return &fetch_R32_UNORM;
 287    case PIPE_FORMAT_R32G32_UNORM:
 288       return &fetch_R32G32_UNORM;
 289    case PIPE_FORMAT_R32G32B32_UNORM:
 290       return &fetch_R32G32B32_UNORM;
 291    case PIPE_FORMAT_R32G32B32A32_UNORM:
 292       return &fetch_R32G32B32A32_UNORM;
 293
 294    case PIPE_FORMAT_R32_USCALED:
 295       return &fetch_R32_USCALED;
 296    case PIPE_FORMAT_R32G32_USCALED:
 297       return &fetch_R32G32_USCALED;
 298    case PIPE_FORMAT_R32G32B32_USCALED:
 299       return &fetch_R32G32B32_USCALED;
 300    case PIPE_FORMAT_R32G32B32A32_USCALED:
 301       return &fetch_R32G32B32A32_USCALED;
 302
 303    case PIPE_FORMAT_R32_SNORM:
 304       return &fetch_R32_SNORM;
 305    case PIPE_FORMAT_R32G32_SNORM:
 306       return &fetch_R32G32_SNORM;
 307    case PIPE_FORMAT_R32G32B32_SNORM:
 308       return &fetch_R32G32B32_SNORM;
 309    case PIPE_FORMAT_R32G32B32A32_SNORM:
 310       return &fetch_R32G32B32A32_SNORM;
 311
 312    case PIPE_FORMAT_R32_SSCALED:
 313       return &fetch_R32_SSCALED;
 314    case PIPE_FORMAT_R32G32_SSCALED:
 315       return &fetch_R32G32_SSCALED;
 316    case PIPE_FORMAT_R32G32B32_SSCALED:
 317       return &fetch_R32G32B32_SSCALED;
 318    case PIPE_FORMAT_R32G32B32A32_SSCALED:
 319       return &fetch_R32G32B32A32_SSCALED;
 320
 321    case PIPE_FORMAT_R16_UNORM:
 322       return &fetch_R16_UNORM;
 323    case PIPE_FORMAT_R16G16_UNORM:
 324       return &fetch_R16G16_UNORM;
 325    case PIPE_FORMAT_R16G16B16_UNORM:
 326       return &fetch_R16G16B16_UNORM;
 327    case PIPE_FORMAT_R16G16B16A16_UNORM:
 328       return &fetch_R16G16B16A16_UNORM;
 329
 330    case PIPE_FORMAT_R16_USCALED:
 331       return &fetch_R16_USCALED;
 332    case PIPE_FORMAT_R16G16_USCALED:
 333       return &fetch_R16G16_USCALED;
 334    case PIPE_FORMAT_R16G16B16_USCALED:
 335       return &fetch_R16G16B16_USCALED;
 336    case PIPE_FORMAT_R16G16B16A16_USCALED:
 337       return &fetch_R16G16B16A16_USCALED;
 338
 339    case PIPE_FORMAT_R16_SNORM:
 340       return &fetch_R16_SNORM;
 341    case PIPE_FORMAT_R16G16_SNORM:
 342       return &fetch_R16G16_SNORM;
 343    case PIPE_FORMAT_R16G16B16_SNORM:
 344       return &fetch_R16G16B16_SNORM;
 345    case PIPE_FORMAT_R16G16B16A16_SNORM:
 346       return &fetch_R16G16B16A16_SNORM;
 347
 348    case PIPE_FORMAT_R16_SSCALED:
 349       return &fetch_R16_SSCALED;
 350    case PIPE_FORMAT_R16G16_SSCALED:
 351       return &fetch_R16G16_SSCALED;
 352    case PIPE_FORMAT_R16G16B16_SSCALED:
 353       return &fetch_R16G16B16_SSCALED;
 354    case PIPE_FORMAT_R16G16B16A16_SSCALED:
 355       return &fetch_R16G16B16A16_SSCALED;
 356
 357    case PIPE_FORMAT_R8_UNORM:
 358       return &fetch_R8_UNORM;
 359    case PIPE_FORMAT_R8G8_UNORM:
 360       return &fetch_R8G8_UNORM;
 361    case PIPE_FORMAT_R8G8B8_UNORM:
 362       return &fetch_R8G8B8_UNORM;
 363    case PIPE_FORMAT_R8G8B8A8_UNORM:
 364       return &fetch_R8G8B8A8_UNORM;
 365
 366    case PIPE_FORMAT_R8_USCALED:
 367       return &fetch_R8_USCALED;
 368    case PIPE_FORMAT_R8G8_USCALED:
 369       return &fetch_R8G8_USCALED;
 370    case PIPE_FORMAT_R8G8B8_USCALED:
 371       return &fetch_R8G8B8_USCALED;
 372    case PIPE_FORMAT_R8G8B8A8_USCALED:
 373       return &fetch_R8G8B8A8_USCALED;
 374
 375    case PIPE_FORMAT_R8_SNORM:
 376       return &fetch_R8_SNORM;
 377    case PIPE_FORMAT_R8G8_SNORM:
 378       return &fetch_R8G8_SNORM;
 379    case PIPE_FORMAT_R8G8B8_SNORM:
 380       return &fetch_R8G8B8_SNORM;
 381    case PIPE_FORMAT_R8G8B8A8_SNORM:
 382       return &fetch_R8G8B8A8_SNORM;
 383
 384    case PIPE_FORMAT_R8_SSCALED:
 385       return &fetch_R8_SSCALED;
 386    case PIPE_FORMAT_R8G8_SSCALED:
 387       return &fetch_R8G8_SSCALED;
 388    case PIPE_FORMAT_R8G8B8_SSCALED:
 389       return &fetch_R8G8B8_SSCALED;
 390    case PIPE_FORMAT_R8G8B8A8_SSCALED:
 391       return &fetch_R8G8B8A8_SSCALED;
 392
 393    case PIPE_FORMAT_A8R8G8B8_UNORM:
 394       return &fetch_A8R8G8B8_UNORM;
 395
 396    case PIPE_FORMAT_B8G8R8A8_UNORM:
 397       return &fetch_B8G8R8A8_UNORM;
 398
 399    case PIPE_FORMAT_R32_FIXED:
 400       return &fetch_R32_FIXED;
 401    case PIPE_FORMAT_R32G32_FIXED:
 402       return &fetch_R32G32_FIXED;
 403    case PIPE_FORMAT_R32G32B32_FIXED:
 404       return &fetch_R32G32B32_FIXED;
 405    case PIPE_FORMAT_R32G32B32A32_FIXED:
 406       return &fetch_R32G32B32A32_FIXED;
 407
 408    default:
 409       assert(0);
 410       return &fetch_NULL;
 411    }
 412 }
 413
 414
 415
 416
 417 static emit_func get_emit_func( enum pipe_format format )
 418 {
 419    /* silence warnings */
 420    (void) emit_R32G32B32A32_FIXED;
 421    (void) emit_R32G32B32_FIXED;
 422    (void) emit_R32G32_FIXED;
 423    (void) emit_R32_FIXED;
 424
 425    switch (format) {
 426    case PIPE_FORMAT_R64_FLOAT:
 427       return &emit_R64_FLOAT;
 428    case PIPE_FORMAT_R64G64_FLOAT:
 429       return &emit_R64G64_FLOAT;
 430    case PIPE_FORMAT_R64G64B64_FLOAT:
 431       return &emit_R64G64B64_FLOAT;
 432    case PIPE_FORMAT_R64G64B64A64_FLOAT:
 433       return &emit_R64G64B64A64_FLOAT;
 434
 435    case PIPE_FORMAT_R32_FLOAT:
 436       return &emit_R32_FLOAT;
 437    case PIPE_FORMAT_R32G32_FLOAT:
 438       return &emit_R32G32_FLOAT;
 439    case PIPE_FORMAT_R32G32B32_FLOAT:
 440       return &emit_R32G32B32_FLOAT;
 441    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 442       return &emit_R32G32B32A32_FLOAT;
 443
 444    case PIPE_FORMAT_R32_UNORM:
 445       return &emit_R32_UNORM;
 446    case PIPE_FORMAT_R32G32_UNORM:
 447       return &emit_R32G32_UNORM;
 448    case PIPE_FORMAT_R32G32B32_UNORM:
 449       return &emit_R32G32B32_UNORM;
 450    case PIPE_FORMAT_R32G32B32A32_UNORM:
 451       return &emit_R32G32B32A32_UNORM;
 452
 453    case PIPE_FORMAT_R32_USCALED:
 454       return &emit_R32_USCALED;
 455    case PIPE_FORMAT_R32G32_USCALED:
 456       return &emit_R32G32_USCALED;
 457    case PIPE_FORMAT_R32G32B32_USCALED:
 458       return &emit_R32G32B32_USCALED;
 459    case PIPE_FORMAT_R32G32B32A32_USCALED:
 460       return &emit_R32G32B32A32_USCALED;
 461
 462    case PIPE_FORMAT_R32_SNORM:
 463       return &emit_R32_SNORM;
 464    case PIPE_FORMAT_R32G32_SNORM:
 465       return &emit_R32G32_SNORM;
 466    case PIPE_FORMAT_R32G32B32_SNORM:
 467       return &emit_R32G32B32_SNORM;
 468    case PIPE_FORMAT_R32G32B32A32_SNORM:
 469       return &emit_R32G32B32A32_SNORM;
 470
 471    case PIPE_FORMAT_R32_SSCALED:
 472       return &emit_R32_SSCALED;
 473    case PIPE_FORMAT_R32G32_SSCALED:
 474       return &emit_R32G32_SSCALED;
 475    case PIPE_FORMAT_R32G32B32_SSCALED:
 476       return &emit_R32G32B32_SSCALED;
 477    case PIPE_FORMAT_R32G32B32A32_SSCALED:
 478       return &emit_R32G32B32A32_SSCALED;
 479
 480    case PIPE_FORMAT_R16_UNORM:
 481       return &emit_R16_UNORM;
 482    case PIPE_FORMAT_R16G16_UNORM:
 483       return &emit_R16G16_UNORM;
 484    case PIPE_FORMAT_R16G16B16_UNORM:
 485       return &emit_R16G16B16_UNORM;
 486    case PIPE_FORMAT_R16G16B16A16_UNORM:
 487       return &emit_R16G16B16A16_UNORM;
 488
 489    case PIPE_FORMAT_R16_USCALED:
 490       return &emit_R16_USCALED;
 491    case PIPE_FORMAT_R16G16_USCALED:
 492       return &emit_R16G16_USCALED;
 493    case PIPE_FORMAT_R16G16B16_USCALED:
 494       return &emit_R16G16B16_USCALED;
 495    case PIPE_FORMAT_R16G16B16A16_USCALED:
 496       return &emit_R16G16B16A16_USCALED;
 497
 498    case PIPE_FORMAT_R16_SNORM:
 499       return &emit_R16_SNORM;
 500    case PIPE_FORMAT_R16G16_SNORM:
 501       return &emit_R16G16_SNORM;
 502    case PIPE_FORMAT_R16G16B16_SNORM:
 503       return &emit_R16G16B16_SNORM;
 504    case PIPE_FORMAT_R16G16B16A16_SNORM:
 505       return &emit_R16G16B16A16_SNORM;
 506
 507    case PIPE_FORMAT_R16_SSCALED:
 508       return &emit_R16_SSCALED;
 509    case PIPE_FORMAT_R16G16_SSCALED:
 510       return &emit_R16G16_SSCALED;
 511    case PIPE_FORMAT_R16G16B16_SSCALED:
 512       return &emit_R16G16B16_SSCALED;
 513    case PIPE_FORMAT_R16G16B16A16_SSCALED:
 514       return &emit_R16G16B16A16_SSCALED;
 515
 516    case PIPE_FORMAT_R8_UNORM:
 517       return &emit_R8_UNORM;
 518    case PIPE_FORMAT_R8G8_UNORM:
 519       return &emit_R8G8_UNORM;
 520    case PIPE_FORMAT_R8G8B8_UNORM:
 521       return &emit_R8G8B8_UNORM;
 522    case PIPE_FORMAT_R8G8B8A8_UNORM:
 523       return &emit_R8G8B8A8_UNORM;
 524
 525    case PIPE_FORMAT_R8_USCALED:
 526       return &emit_R8_USCALED;
 527    case PIPE_FORMAT_R8G8_USCALED:
 528       return &emit_R8G8_USCALED;
 529    case PIPE_FORMAT_R8G8B8_USCALED:
 530       return &emit_R8G8B8_USCALED;
 531    case PIPE_FORMAT_R8G8B8A8_USCALED:
 532       return &emit_R8G8B8A8_USCALED;
 533
 534    case PIPE_FORMAT_R8_SNORM:
 535       return &emit_R8_SNORM;
 536    case PIPE_FORMAT_R8G8_SNORM:
 537       return &emit_R8G8_SNORM;
 538    case PIPE_FORMAT_R8G8B8_SNORM:
 539       return &emit_R8G8B8_SNORM;
 540    case PIPE_FORMAT_R8G8B8A8_SNORM:
 541       return &emit_R8G8B8A8_SNORM;
 542
 543    case PIPE_FORMAT_R8_SSCALED:
 544       return &emit_R8_SSCALED;
 545    case PIPE_FORMAT_R8G8_SSCALED:
 546       return &emit_R8G8_SSCALED;
 547    case PIPE_FORMAT_R8G8B8_SSCALED:
 548       return &emit_R8G8B8_SSCALED;
 549    case PIPE_FORMAT_R8G8B8A8_SSCALED:
 550       return &emit_R8G8B8A8_SSCALED;
 551
 552    case PIPE_FORMAT_A8R8G8B8_UNORM:
 553       return &emit_A8R8G8B8_UNORM;
 554
 555    case PIPE_FORMAT_B8G8R8A8_UNORM:
 556       return &emit_B8G8R8A8_UNORM;
 557
 558    default:
 559       assert(0);
 560       return &emit_NULL;
 561    }
 562 }
 563
 564
 565
 566 /**
 567  * Fetch vertex attributes for 'count' vertices.
 568  */
 569 static void PIPE_CDECL generic_run_elts( struct translate *translate,
 570                                          const unsigned *elts,
 571                                          unsigned count,
 572                                          unsigned instance_id,
 573                                          void *output_buffer )
 574 {
 575    struct translate_generic *tg = translate_generic(translate);
 576    char *vert = output_buffer;
 577    unsigned nr_attrs = tg->nr_attrib;
 578    unsigned attr;
 579    unsigned i;
 580
 581    /* loop over vertex attributes (vertex shader inputs)
 582     */
 583    for (i = 0; i < count; i++) {
 584       unsigned elt = *elts++;
 585
 586       for (attr = 0; attr < nr_attrs; attr++) {
 587          float data[4];
 588          const char *src;
 589
 590          char *dst = (vert +
 591                       tg->attrib[attr].output_offset);
 592
 593          if (tg->attrib[attr].instance_divisor) {
 594             src = tg->attrib[attr].input_ptr +
 595                   tg->attrib[attr].input_stride *
 596                   (instance_id / tg->attrib[attr].instance_divisor);
 597          } else {
 598             src = tg->attrib[attr].input_ptr +
 599                   tg->attrib[attr].input_stride * elt;
 600          }
 601
 602          tg->attrib[attr].fetch( src, data );
 603
 604          if (0) debug_printf("vert %d/%d attr %d: %f %f %f %f\n",
 605                              i, elt, attr, data[0], data[1], data[2], data[3]);
 606
 607          tg->attrib[attr].emit( data, dst );
 608       }
 609
 610       vert += tg->translate.key.output_stride;
 611    }
 612 }
 613
 614
 615
 616 static void PIPE_CDECL generic_run( struct translate *translate,
 617                                     unsigned start,
 618                                     unsigned count,
 619                                     unsigned instance_id,
 620                                     void *output_buffer )
 621 {
 622    struct translate_generic *tg = translate_generic(translate);
 623    char *vert = output_buffer;
 624    unsigned nr_attrs = tg->nr_attrib;
 625    unsigned attr;
 626    unsigned i;
 627
 628    /* loop over vertex attributes (vertex shader inputs)
 629     */
 630    for (i = 0; i < count; i++) {
 631       unsigned elt = start + i;
 632
 633       for (attr = 0; attr < nr_attrs; attr++) {
 634          float data[4];
 635          const char *src;
 636
 637          char *dst = (vert +
 638                       tg->attrib[attr].output_offset);
 639
 640          if (tg->attrib[attr].instance_divisor) {
 641             src = tg->attrib[attr].input_ptr +
 642                   tg->attrib[attr].input_stride *
 643                   (instance_id / tg->attrib[attr].instance_divisor);
 644          } else {
 645             src = tg->attrib[attr].input_ptr +
 646                   tg->attrib[attr].input_stride * elt;
 647          }
 648
 649          tg->attrib[attr].fetch( src, data );
 650
 651          if (0) debug_printf("vert %d attr %d: %f %f %f %f\n",
 652                              i, attr, data[0], data[1], data[2], data[3]);
 653
 654          tg->attrib[attr].emit( data, dst );
 655       }
 656
 657       vert += tg->translate.key.output_stride;
 658    }
 659 }
 660
 661
 662
 663 static void generic_set_buffer( struct translate *translate,
 664                                 unsigned buf,
 665                                 const void *ptr,
 666                                 unsigned stride )
 667 {
 668    struct translate_generic *tg = translate_generic(translate);
 669    unsigned i;
 670
 671    for (i = 0; i < tg->nr_attrib; i++) {
 672       if (tg->attrib[i].buffer == buf) {
 673          tg->attrib[i].input_ptr = ((char *)ptr +
 674                                     tg->attrib[i].input_offset);
 675          tg->attrib[i].input_stride = stride;
 676       }
 677    }
 678 }
 679
 680
 681 static void generic_release( struct translate *translate )
 682 {
 683    /* Refcount?
 684     */
 685    FREE(translate);
 686 }
 687
 688 struct translate *translate_generic_create( const struct translate_key *key )
 689 {
 690    struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
 691    unsigned i;
 692
 693    if (tg == NULL)
 694       return NULL;
 695
 696    tg->translate.key = *key;
 697    tg->translate.release = generic_release;
 698    tg->translate.set_buffer = generic_set_buffer;
 699    tg->translate.run_elts = generic_run_elts;
 700    tg->translate.run = generic_run;
 701
 702    for (i = 0; i < key->nr_elements; i++) {
 703
 704       tg->attrib[i].fetch = get_fetch_func(key->element[i].input_format);
 705       tg->attrib[i].buffer = key->element[i].input_buffer;
 706       tg->attrib[i].input_offset = key->element[i].input_offset;
 707       tg->attrib[i].instance_divisor = key->element[i].instance_divisor;
 708
 709       tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
 710       tg->attrib[i].output_offset = key->element[i].output_offset;
 711
 712    }
 713
 714    tg->nr_attrib = key->nr_elements;
 715
 716
 717    return &tg->translate;
 718 }