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