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 "util/u_math.h"
  35 #include "pipe/p_state.h"
  36 #include "translate.h"
  37
  38
  39 #define DRAW_DBG 0
  40
  41 typedef void (*fetch_func)(const void *ptr, float *attrib);
  42 typedef void (*emit_func)(const float *attrib, void *ptr);
  43
  44
  45
  46 struct translate_generic {
  47    struct translate translate;
  48
  49    struct {
  50       enum translate_element_type type;
  51
  52       fetch_func fetch;
  53       unsigned buffer;
  54       unsigned input_offset;
  55       unsigned instance_divisor;
  56
  57       emit_func emit;
  58       unsigned output_offset;
  59
  60       char *input_ptr;
  61       unsigned input_stride;
  62       unsigned max_index;
  63
  64    } attrib[PIPE_MAX_ATTRIBS];
  65
  66    unsigned nr_attrib;
  67 };
  68
  69
  70 static struct translate_generic *translate_generic( struct translate *translate )
  71 {
  72    return (struct translate_generic *)translate;
  73 }
  74
  75 /**
  76  * Fetch a float[4] vertex attribute from memory, doing format/type
  77  * conversion as needed.
  78  *
  79  * This is probably needed/dupliocated elsewhere, eg format
  80  * conversion, texture sampling etc.
  81  */
  82 #define ATTRIB( NAME, SZ, TYPE, FROM, TO )              \
  83 static void                                             \
  84 fetch_##NAME(const void *ptr, float *attrib)            \
  85 {                                                       \
  86    const float defaults[4] = { 0.0f,0.0f,0.0f,1.0f };   \
  87    unsigned i;                                          \
  88                                                         \
  89    for (i = 0; i < SZ; i++) {                           \
  90       attrib[i] = FROM(i);                              \
  91    }                                                    \
  92                                                         \
  93    for (; i < 4; i++) {                                 \
  94       attrib[i] = defaults[i];                          \
  95    }                                                    \
  96 }                                                       \
  97                                                         \
  98 static void                                             \
  99 emit_##NAME(const float *attrib, void *ptr)             \
 100 {  \
 101    unsigned i;                                          \
 102    TYPE *out = (TYPE *)ptr;                             \
 103                                                         \
 104    for (i = 0; i < SZ; i++) {                           \
 105       out[i] = TO(attrib[i]);                           \
 106    }                                                    \
 107 }
 108
 109
 110 #define FROM_64_FLOAT(i)   ((float) ((double *) ptr)[i])
 111 #define FROM_32_FLOAT(i)   (((float *) ptr)[i])
 112
 113 #define FROM_8_USCALED(i)  ((float) ((unsigned char *) ptr)[i])
 114 #define FROM_16_USCALED(i) ((float) ((unsigned short *) ptr)[i])
 115 #define FROM_32_USCALED(i) ((float) ((unsigned int *) ptr)[i])
 116
 117 #define FROM_8_SSCALED(i)  ((float) ((char *) ptr)[i])
 118 #define FROM_16_SSCALED(i) ((float) ((short *) ptr)[i])
 119 #define FROM_32_SSCALED(i) ((float) ((int *) ptr)[i])
 120
 121 #define FROM_8_UNORM(i)    ((float) ((unsigned char *) ptr)[i] / 255.0f)
 122 #define FROM_16_UNORM(i)   ((float) ((unsigned short *) ptr)[i] / 65535.0f)
 123 #define FROM_32_UNORM(i)   ((float) ((unsigned int *) ptr)[i] / 4294967295.0f)
 124
 125 #define FROM_8_SNORM(i)    ((float) ((char *) ptr)[i] / 127.0f)
 126 #define FROM_16_SNORM(i)   ((float) ((short *) ptr)[i] / 32767.0f)
 127 #define FROM_32_SNORM(i)   ((float) ((int *) ptr)[i] / 2147483647.0f)
 128
 129 #define FROM_32_FIXED(i)   (((int *) ptr)[i] / 65536.0f)
 130
 131 #define TO_64_FLOAT(x)   ((double) x)
 132 #define TO_32_FLOAT(x)   (x)
 133
 134 #define TO_8_USCALED(x)  ((unsigned char) x)
 135 #define TO_16_USCALED(x) ((unsigned short) x)
 136 #define TO_32_USCALED(x) ((unsigned int) x)
 137
 138 #define TO_8_SSCALED(x)  ((char) x)
 139 #define TO_16_SSCALED(x) ((short) x)
 140 #define TO_32_SSCALED(x) ((int) x)
 141
 142 #define TO_8_UNORM(x)    ((unsigned char) (x * 255.0f))
 143 #define TO_16_UNORM(x)   ((unsigned short) (x * 65535.0f))
 144 #define TO_32_UNORM(x)   ((unsigned int) (x * 4294967295.0f))
 145
 146 #define TO_8_SNORM(x)    ((char) (x * 127.0f))
 147 #define TO_16_SNORM(x)   ((short) (x * 32767.0f))
 148 #define TO_32_SNORM(x)   ((int) (x * 2147483647.0f))
 149
 150 #define TO_32_FIXED(x)   ((int) (x * 65536.0f))
 151
 152
 153
 154 ATTRIB( R64G64B64A64_FLOAT,   4, double, FROM_64_FLOAT, TO_64_FLOAT )
 155 ATTRIB( R64G64B64_FLOAT,      3, double, FROM_64_FLOAT, TO_64_FLOAT )
 156 ATTRIB( R64G64_FLOAT,         2, double, FROM_64_FLOAT, TO_64_FLOAT )
 157 ATTRIB( R64_FLOAT,            1, double, FROM_64_FLOAT, TO_64_FLOAT )
 158
 159 ATTRIB( R32G32B32A32_FLOAT,   4, float, FROM_32_FLOAT, TO_32_FLOAT )
 160 ATTRIB( R32G32B32_FLOAT,      3, float, FROM_32_FLOAT, TO_32_FLOAT )
 161 ATTRIB( R32G32_FLOAT,         2, float, FROM_32_FLOAT, TO_32_FLOAT )
 162 ATTRIB( R32_FLOAT,            1, float, FROM_32_FLOAT, TO_32_FLOAT )
 163
 164 ATTRIB( R32G32B32A32_USCALED, 4, unsigned, FROM_32_USCALED, TO_32_USCALED )
 165 ATTRIB( R32G32B32_USCALED,    3, unsigned, FROM_32_USCALED, TO_32_USCALED )
 166 ATTRIB( R32G32_USCALED,       2, unsigned, FROM_32_USCALED, TO_32_USCALED )
 167 ATTRIB( R32_USCALED,          1, unsigned, FROM_32_USCALED, TO_32_USCALED )
 168
 169 ATTRIB( R32G32B32A32_SSCALED, 4, int, FROM_32_SSCALED, TO_32_SSCALED )
 170 ATTRIB( R32G32B32_SSCALED,    3, int, FROM_32_SSCALED, TO_32_SSCALED )
 171 ATTRIB( R32G32_SSCALED,       2, int, FROM_32_SSCALED, TO_32_SSCALED )
 172 ATTRIB( R32_SSCALED,          1, int, FROM_32_SSCALED, TO_32_SSCALED )
 173
 174 ATTRIB( R32G32B32A32_UNORM, 4, unsigned, FROM_32_UNORM, TO_32_UNORM )
 175 ATTRIB( R32G32B32_UNORM,    3, unsigned, FROM_32_UNORM, TO_32_UNORM )
 176 ATTRIB( R32G32_UNORM,       2, unsigned, FROM_32_UNORM, TO_32_UNORM )
 177 ATTRIB( R32_UNORM,          1, unsigned, FROM_32_UNORM, TO_32_UNORM )
 178
 179 ATTRIB( R32G32B32A32_SNORM, 4, int, FROM_32_SNORM, TO_32_SNORM )
 180 ATTRIB( R32G32B32_SNORM,    3, int, FROM_32_SNORM, TO_32_SNORM )
 181 ATTRIB( R32G32_SNORM,       2, int, FROM_32_SNORM, TO_32_SNORM )
 182 ATTRIB( R32_SNORM,          1, int, FROM_32_SNORM, TO_32_SNORM )
 183
 184 ATTRIB( R16G16B16A16_USCALED, 4, ushort, FROM_16_USCALED, TO_16_USCALED )
 185 ATTRIB( R16G16B16_USCALED,    3, ushort, FROM_16_USCALED, TO_16_USCALED )
 186 ATTRIB( R16G16_USCALED,       2, ushort, FROM_16_USCALED, TO_16_USCALED )
 187 ATTRIB( R16_USCALED,          1, ushort, FROM_16_USCALED, TO_16_USCALED )
 188
 189 ATTRIB( R16G16B16A16_SSCALED, 4, short, FROM_16_SSCALED, TO_16_SSCALED )
 190 ATTRIB( R16G16B16_SSCALED,    3, short, FROM_16_SSCALED, TO_16_SSCALED )
 191 ATTRIB( R16G16_SSCALED,       2, short, FROM_16_SSCALED, TO_16_SSCALED )
 192 ATTRIB( R16_SSCALED,          1, short, FROM_16_SSCALED, TO_16_SSCALED )
 193
 194 ATTRIB( R16G16B16A16_UNORM, 4, ushort, FROM_16_UNORM, TO_16_UNORM )
 195 ATTRIB( R16G16B16_UNORM,    3, ushort, FROM_16_UNORM, TO_16_UNORM )
 196 ATTRIB( R16G16_UNORM,       2, ushort, FROM_16_UNORM, TO_16_UNORM )
 197 ATTRIB( R16_UNORM,          1, ushort, FROM_16_UNORM, TO_16_UNORM )
 198
 199 ATTRIB( R16G16B16A16_SNORM, 4, short, FROM_16_SNORM, TO_16_SNORM )
 200 ATTRIB( R16G16B16_SNORM,    3, short, FROM_16_SNORM, TO_16_SNORM )
 201 ATTRIB( R16G16_SNORM,       2, short, FROM_16_SNORM, TO_16_SNORM )
 202 ATTRIB( R16_SNORM,          1, short, FROM_16_SNORM, TO_16_SNORM )
 203
 204 ATTRIB( R8G8B8A8_USCALED,   4, ubyte, FROM_8_USCALED, TO_8_USCALED )
 205 ATTRIB( R8G8B8_USCALED,     3, ubyte, FROM_8_USCALED, TO_8_USCALED )
 206 ATTRIB( R8G8_USCALED,       2, ubyte, FROM_8_USCALED, TO_8_USCALED )
 207 ATTRIB( R8_USCALED,         1, ubyte, FROM_8_USCALED, TO_8_USCALED )
 208
 209 ATTRIB( R8G8B8A8_SSCALED,  4, char, FROM_8_SSCALED, TO_8_SSCALED )
 210 ATTRIB( R8G8B8_SSCALED,    3, char, FROM_8_SSCALED, TO_8_SSCALED )
 211 ATTRIB( R8G8_SSCALED,      2, char, FROM_8_SSCALED, TO_8_SSCALED )
 212 ATTRIB( R8_SSCALED,        1, char, FROM_8_SSCALED, TO_8_SSCALED )
 213
 214 ATTRIB( R8G8B8A8_UNORM,  4, ubyte, FROM_8_UNORM, TO_8_UNORM )
 215 ATTRIB( R8G8B8_UNORM,    3, ubyte, FROM_8_UNORM, TO_8_UNORM )
 216 ATTRIB( R8G8_UNORM,      2, ubyte, FROM_8_UNORM, TO_8_UNORM )
 217 ATTRIB( R8_UNORM,        1, ubyte, FROM_8_UNORM, TO_8_UNORM )
 218
 219 ATTRIB( R8G8B8A8_SNORM,  4, char, FROM_8_SNORM, TO_8_SNORM )
 220 ATTRIB( R8G8B8_SNORM,    3, char, FROM_8_SNORM, TO_8_SNORM )
 221 ATTRIB( R8G8_SNORM,      2, char, FROM_8_SNORM, TO_8_SNORM )
 222 ATTRIB( R8_SNORM,        1, char, FROM_8_SNORM, TO_8_SNORM )
 223
 224 ATTRIB( A8R8G8B8_UNORM,       4, ubyte, FROM_8_UNORM, TO_8_UNORM )
 225 /*ATTRIB( R8G8B8A8_UNORM,       4, ubyte, FROM_8_UNORM, TO_8_UNORM )*/
 226
 227 ATTRIB( R32G32B32A32_FIXED,   4, int, FROM_32_FIXED, TO_32_FIXED )
 228 ATTRIB( R32G32B32_FIXED,      3, int, FROM_32_FIXED, TO_32_FIXED )
 229 ATTRIB( R32G32_FIXED,         2, int, FROM_32_FIXED, TO_32_FIXED )
 230 ATTRIB( R32_FIXED,            1, int, FROM_32_FIXED, TO_32_FIXED )
 231
 232
 233
 234 static void
 235 fetch_B8G8R8A8_UNORM(const void *ptr, float *attrib)
 236 {
 237    attrib[2] = FROM_8_UNORM(0);
 238    attrib[1] = FROM_8_UNORM(1);
 239    attrib[0] = FROM_8_UNORM(2);
 240    attrib[3] = FROM_8_UNORM(3);
 241 }
 242
 243 static void
 244 emit_B8G8R8A8_UNORM( const float *attrib, void *ptr)
 245 {
 246    ubyte *out = (ubyte *)ptr;
 247    out[2] = TO_8_UNORM(attrib[0]);
 248    out[1] = TO_8_UNORM(attrib[1]);
 249    out[0] = TO_8_UNORM(attrib[2]);
 250    out[3] = TO_8_UNORM(attrib[3]);
 251 }
 252
 253 static void
 254 fetch_NULL( const void *ptr, float *attrib )
 255 {
 256    attrib[0] = 0;
 257    attrib[1] = 0;
 258    attrib[2] = 0;
 259    attrib[3] = 1;
 260 }
 261
 262 static void
 263 emit_NULL( const float *attrib, void *ptr )
 264 {
 265    /* do nothing is the only sensible option */
 266 }
 267
 268 static fetch_func get_fetch_func( enum pipe_format format )
 269 {
 270    switch (format) {
 271    case PIPE_FORMAT_R64_FLOAT:
 272       return &fetch_R64_FLOAT;
 273    case PIPE_FORMAT_R64G64_FLOAT:
 274       return &fetch_R64G64_FLOAT;
 275    case PIPE_FORMAT_R64G64B64_FLOAT:
 276       return &fetch_R64G64B64_FLOAT;
 277    case PIPE_FORMAT_R64G64B64A64_FLOAT:
 278       return &fetch_R64G64B64A64_FLOAT;
 279
 280    case PIPE_FORMAT_R32_FLOAT:
 281       return &fetch_R32_FLOAT;
 282    case PIPE_FORMAT_R32G32_FLOAT:
 283       return &fetch_R32G32_FLOAT;
 284    case PIPE_FORMAT_R32G32B32_FLOAT:
 285       return &fetch_R32G32B32_FLOAT;
 286    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 287       return &fetch_R32G32B32A32_FLOAT;
 288
 289    case PIPE_FORMAT_R32_UNORM:
 290       return &fetch_R32_UNORM;
 291    case PIPE_FORMAT_R32G32_UNORM:
 292       return &fetch_R32G32_UNORM;
 293    case PIPE_FORMAT_R32G32B32_UNORM:
 294       return &fetch_R32G32B32_UNORM;
 295    case PIPE_FORMAT_R32G32B32A32_UNORM:
 296       return &fetch_R32G32B32A32_UNORM;
 297
 298    case PIPE_FORMAT_R32_USCALED:
 299       return &fetch_R32_USCALED;
 300    case PIPE_FORMAT_R32G32_USCALED:
 301       return &fetch_R32G32_USCALED;
 302    case PIPE_FORMAT_R32G32B32_USCALED:
 303       return &fetch_R32G32B32_USCALED;
 304    case PIPE_FORMAT_R32G32B32A32_USCALED:
 305       return &fetch_R32G32B32A32_USCALED;
 306
 307    case PIPE_FORMAT_R32_SNORM:
 308       return &fetch_R32_SNORM;
 309    case PIPE_FORMAT_R32G32_SNORM:
 310       return &fetch_R32G32_SNORM;
 311    case PIPE_FORMAT_R32G32B32_SNORM:
 312       return &fetch_R32G32B32_SNORM;
 313    case PIPE_FORMAT_R32G32B32A32_SNORM:
 314       return &fetch_R32G32B32A32_SNORM;
 315
 316    case PIPE_FORMAT_R32_SSCALED:
 317       return &fetch_R32_SSCALED;
 318    case PIPE_FORMAT_R32G32_SSCALED:
 319       return &fetch_R32G32_SSCALED;
 320    case PIPE_FORMAT_R32G32B32_SSCALED:
 321       return &fetch_R32G32B32_SSCALED;
 322    case PIPE_FORMAT_R32G32B32A32_SSCALED:
 323       return &fetch_R32G32B32A32_SSCALED;
 324
 325    case PIPE_FORMAT_R16_UNORM:
 326       return &fetch_R16_UNORM;
 327    case PIPE_FORMAT_R16G16_UNORM:
 328       return &fetch_R16G16_UNORM;
 329    case PIPE_FORMAT_R16G16B16_UNORM:
 330       return &fetch_R16G16B16_UNORM;
 331    case PIPE_FORMAT_R16G16B16A16_UNORM:
 332       return &fetch_R16G16B16A16_UNORM;
 333
 334    case PIPE_FORMAT_R16_USCALED:
 335       return &fetch_R16_USCALED;
 336    case PIPE_FORMAT_R16G16_USCALED:
 337       return &fetch_R16G16_USCALED;
 338    case PIPE_FORMAT_R16G16B16_USCALED:
 339       return &fetch_R16G16B16_USCALED;
 340    case PIPE_FORMAT_R16G16B16A16_USCALED:
 341       return &fetch_R16G16B16A16_USCALED;
 342
 343    case PIPE_FORMAT_R16_SNORM:
 344       return &fetch_R16_SNORM;
 345    case PIPE_FORMAT_R16G16_SNORM:
 346       return &fetch_R16G16_SNORM;
 347    case PIPE_FORMAT_R16G16B16_SNORM:
 348       return &fetch_R16G16B16_SNORM;
 349    case PIPE_FORMAT_R16G16B16A16_SNORM:
 350       return &fetch_R16G16B16A16_SNORM;
 351
 352    case PIPE_FORMAT_R16_SSCALED:
 353       return &fetch_R16_SSCALED;
 354    case PIPE_FORMAT_R16G16_SSCALED:
 355       return &fetch_R16G16_SSCALED;
 356    case PIPE_FORMAT_R16G16B16_SSCALED:
 357       return &fetch_R16G16B16_SSCALED;
 358    case PIPE_FORMAT_R16G16B16A16_SSCALED:
 359       return &fetch_R16G16B16A16_SSCALED;
 360
 361    case PIPE_FORMAT_R8_UNORM:
 362       return &fetch_R8_UNORM;
 363    case PIPE_FORMAT_R8G8_UNORM:
 364       return &fetch_R8G8_UNORM;
 365    case PIPE_FORMAT_R8G8B8_UNORM:
 366       return &fetch_R8G8B8_UNORM;
 367    case PIPE_FORMAT_R8G8B8A8_UNORM:
 368       return &fetch_R8G8B8A8_UNORM;
 369
 370    case PIPE_FORMAT_R8_USCALED:
 371       return &fetch_R8_USCALED;
 372    case PIPE_FORMAT_R8G8_USCALED:
 373       return &fetch_R8G8_USCALED;
 374    case PIPE_FORMAT_R8G8B8_USCALED:
 375       return &fetch_R8G8B8_USCALED;
 376    case PIPE_FORMAT_R8G8B8A8_USCALED:
 377       return &fetch_R8G8B8A8_USCALED;
 378
 379    case PIPE_FORMAT_R8_SNORM:
 380       return &fetch_R8_SNORM;
 381    case PIPE_FORMAT_R8G8_SNORM:
 382       return &fetch_R8G8_SNORM;
 383    case PIPE_FORMAT_R8G8B8_SNORM:
 384       return &fetch_R8G8B8_SNORM;
 385    case PIPE_FORMAT_R8G8B8A8_SNORM:
 386       return &fetch_R8G8B8A8_SNORM;
 387
 388    case PIPE_FORMAT_R8_SSCALED:
 389       return &fetch_R8_SSCALED;
 390    case PIPE_FORMAT_R8G8_SSCALED:
 391       return &fetch_R8G8_SSCALED;
 392    case PIPE_FORMAT_R8G8B8_SSCALED:
 393       return &fetch_R8G8B8_SSCALED;
 394    case PIPE_FORMAT_R8G8B8A8_SSCALED:
 395       return &fetch_R8G8B8A8_SSCALED;
 396
 397    case PIPE_FORMAT_B8G8R8A8_UNORM:
 398       return &fetch_B8G8R8A8_UNORM;
 399
 400    case PIPE_FORMAT_A8R8G8B8_UNORM:
 401       return &fetch_A8R8G8B8_UNORM;
 402
 403    case PIPE_FORMAT_R32_FIXED:
 404       return &fetch_R32_FIXED;
 405    case PIPE_FORMAT_R32G32_FIXED:
 406       return &fetch_R32G32_FIXED;
 407    case PIPE_FORMAT_R32G32B32_FIXED:
 408       return &fetch_R32G32B32_FIXED;
 409    case PIPE_FORMAT_R32G32B32A32_FIXED:
 410       return &fetch_R32G32B32A32_FIXED;
 411
 412    default:
 413       assert(0);
 414       return &fetch_NULL;
 415    }
 416 }
 417
 418
 419
 420
 421 static emit_func get_emit_func( enum pipe_format format )
 422 {
 423    /* silence warnings */
 424    (void) emit_R32G32B32A32_FIXED;
 425    (void) emit_R32G32B32_FIXED;
 426    (void) emit_R32G32_FIXED;
 427    (void) emit_R32_FIXED;
 428
 429    switch (format) {
 430    case PIPE_FORMAT_R64_FLOAT:
 431       return &emit_R64_FLOAT;
 432    case PIPE_FORMAT_R64G64_FLOAT:
 433       return &emit_R64G64_FLOAT;
 434    case PIPE_FORMAT_R64G64B64_FLOAT:
 435       return &emit_R64G64B64_FLOAT;
 436    case PIPE_FORMAT_R64G64B64A64_FLOAT:
 437       return &emit_R64G64B64A64_FLOAT;
 438
 439    case PIPE_FORMAT_R32_FLOAT:
 440       return &emit_R32_FLOAT;
 441    case PIPE_FORMAT_R32G32_FLOAT:
 442       return &emit_R32G32_FLOAT;
 443    case PIPE_FORMAT_R32G32B32_FLOAT:
 444       return &emit_R32G32B32_FLOAT;
 445    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 446       return &emit_R32G32B32A32_FLOAT;
 447
 448    case PIPE_FORMAT_R32_UNORM:
 449       return &emit_R32_UNORM;
 450    case PIPE_FORMAT_R32G32_UNORM:
 451       return &emit_R32G32_UNORM;
 452    case PIPE_FORMAT_R32G32B32_UNORM:
 453       return &emit_R32G32B32_UNORM;
 454    case PIPE_FORMAT_R32G32B32A32_UNORM:
 455       return &emit_R32G32B32A32_UNORM;
 456
 457    case PIPE_FORMAT_R32_USCALED:
 458       return &emit_R32_USCALED;
 459    case PIPE_FORMAT_R32G32_USCALED:
 460       return &emit_R32G32_USCALED;
 461    case PIPE_FORMAT_R32G32B32_USCALED:
 462       return &emit_R32G32B32_USCALED;
 463    case PIPE_FORMAT_R32G32B32A32_USCALED:
 464       return &emit_R32G32B32A32_USCALED;
 465
 466    case PIPE_FORMAT_R32_SNORM:
 467       return &emit_R32_SNORM;
 468    case PIPE_FORMAT_R32G32_SNORM:
 469       return &emit_R32G32_SNORM;
 470    case PIPE_FORMAT_R32G32B32_SNORM:
 471       return &emit_R32G32B32_SNORM;
 472    case PIPE_FORMAT_R32G32B32A32_SNORM:
 473       return &emit_R32G32B32A32_SNORM;
 474
 475    case PIPE_FORMAT_R32_SSCALED:
 476       return &emit_R32_SSCALED;
 477    case PIPE_FORMAT_R32G32_SSCALED:
 478       return &emit_R32G32_SSCALED;
 479    case PIPE_FORMAT_R32G32B32_SSCALED:
 480       return &emit_R32G32B32_SSCALED;
 481    case PIPE_FORMAT_R32G32B32A32_SSCALED:
 482       return &emit_R32G32B32A32_SSCALED;
 483
 484    case PIPE_FORMAT_R16_UNORM:
 485       return &emit_R16_UNORM;
 486    case PIPE_FORMAT_R16G16_UNORM:
 487       return &emit_R16G16_UNORM;
 488    case PIPE_FORMAT_R16G16B16_UNORM:
 489       return &emit_R16G16B16_UNORM;
 490    case PIPE_FORMAT_R16G16B16A16_UNORM:
 491       return &emit_R16G16B16A16_UNORM;
 492
 493    case PIPE_FORMAT_R16_USCALED:
 494       return &emit_R16_USCALED;
 495    case PIPE_FORMAT_R16G16_USCALED:
 496       return &emit_R16G16_USCALED;
 497    case PIPE_FORMAT_R16G16B16_USCALED:
 498       return &emit_R16G16B16_USCALED;
 499    case PIPE_FORMAT_R16G16B16A16_USCALED:
 500       return &emit_R16G16B16A16_USCALED;
 501
 502    case PIPE_FORMAT_R16_SNORM:
 503       return &emit_R16_SNORM;
 504    case PIPE_FORMAT_R16G16_SNORM:
 505       return &emit_R16G16_SNORM;
 506    case PIPE_FORMAT_R16G16B16_SNORM:
 507       return &emit_R16G16B16_SNORM;
 508    case PIPE_FORMAT_R16G16B16A16_SNORM:
 509       return &emit_R16G16B16A16_SNORM;
 510
 511    case PIPE_FORMAT_R16_SSCALED:
 512       return &emit_R16_SSCALED;
 513    case PIPE_FORMAT_R16G16_SSCALED:
 514       return &emit_R16G16_SSCALED;
 515    case PIPE_FORMAT_R16G16B16_SSCALED:
 516       return &emit_R16G16B16_SSCALED;
 517    case PIPE_FORMAT_R16G16B16A16_SSCALED:
 518       return &emit_R16G16B16A16_SSCALED;
 519
 520    case PIPE_FORMAT_R8_UNORM:
 521       return &emit_R8_UNORM;
 522    case PIPE_FORMAT_R8G8_UNORM:
 523       return &emit_R8G8_UNORM;
 524    case PIPE_FORMAT_R8G8B8_UNORM:
 525       return &emit_R8G8B8_UNORM;
 526    case PIPE_FORMAT_R8G8B8A8_UNORM:
 527       return &emit_R8G8B8A8_UNORM;
 528
 529    case PIPE_FORMAT_R8_USCALED:
 530       return &emit_R8_USCALED;
 531    case PIPE_FORMAT_R8G8_USCALED:
 532       return &emit_R8G8_USCALED;
 533    case PIPE_FORMAT_R8G8B8_USCALED:
 534       return &emit_R8G8B8_USCALED;
 535    case PIPE_FORMAT_R8G8B8A8_USCALED:
 536       return &emit_R8G8B8A8_USCALED;
 537
 538    case PIPE_FORMAT_R8_SNORM:
 539       return &emit_R8_SNORM;
 540    case PIPE_FORMAT_R8G8_SNORM:
 541       return &emit_R8G8_SNORM;
 542    case PIPE_FORMAT_R8G8B8_SNORM:
 543       return &emit_R8G8B8_SNORM;
 544    case PIPE_FORMAT_R8G8B8A8_SNORM:
 545       return &emit_R8G8B8A8_SNORM;
 546
 547    case PIPE_FORMAT_R8_SSCALED:
 548       return &emit_R8_SSCALED;
 549    case PIPE_FORMAT_R8G8_SSCALED:
 550       return &emit_R8G8_SSCALED;
 551    case PIPE_FORMAT_R8G8B8_SSCALED:
 552       return &emit_R8G8B8_SSCALED;
 553    case PIPE_FORMAT_R8G8B8A8_SSCALED:
 554       return &emit_R8G8B8A8_SSCALED;
 555
 556    case PIPE_FORMAT_B8G8R8A8_UNORM:
 557       return &emit_B8G8R8A8_UNORM;
 558
 559    case PIPE_FORMAT_A8R8G8B8_UNORM:
 560       return &emit_A8R8G8B8_UNORM;
 561
 562    default:
 563       assert(0);
 564       return &emit_NULL;
 565    }
 566 }
 567
 568
 569
 570 /**
 571  * Fetch vertex attributes for 'count' vertices.
 572  */
 573 static void PIPE_CDECL generic_run_elts( struct translate *translate,
 574                                          const unsigned *elts,
 575                                          unsigned count,
 576                                          unsigned instance_id,
 577                                          void *output_buffer )
 578 {
 579    struct translate_generic *tg = translate_generic(translate);
 580    char *vert = output_buffer;
 581    unsigned nr_attrs = tg->nr_attrib;
 582    unsigned attr;
 583    unsigned i;
 584
 585    /* loop over vertex attributes (vertex shader inputs)
 586     */
 587    for (i = 0; i < count; i++) {
 588       unsigned elt = *elts++;
 589
 590       for (attr = 0; attr < nr_attrs; attr++) {
 591          float data[4];
 592          const char *src;
 593          unsigned index;
 594
 595          char *dst = (vert +
 596                       tg->attrib[attr].output_offset);
 597
 598          if (tg->attrib[attr].instance_divisor) {
 599             index = instance_id / tg->attrib[attr].instance_divisor;
 600          } else {
 601             index = elt;
 602          }
 603
 604          index = MIN2(index, tg->attrib[attr].max_index);
 605
 606          src = tg->attrib[attr].input_ptr +
 607                tg->attrib[attr].input_stride * index;
 608
 609          tg->attrib[attr].fetch( src, data );
 610
 611          if (0) debug_printf("vert %d/%d attr %d: %f %f %f %f\n",
 612                              i, elt, attr, data[0], data[1], data[2], data[3]);
 613
 614          tg->attrib[attr].emit( data, dst );
 615       }
 616
 617       vert += tg->translate.key.output_stride;
 618    }
 619 }
 620
 621
 622
 623 static void PIPE_CDECL generic_run( struct translate *translate,
 624                                     unsigned start,
 625                                     unsigned count,
 626                                     unsigned instance_id,
 627                                     void *output_buffer )
 628 {
 629    struct translate_generic *tg = translate_generic(translate);
 630    char *vert = output_buffer;
 631    unsigned nr_attrs = tg->nr_attrib;
 632    unsigned attr;
 633    unsigned i;
 634
 635    /* loop over vertex attributes (vertex shader inputs)
 636     */
 637    for (i = 0; i < count; i++) {
 638       unsigned elt = start + i;
 639
 640       for (attr = 0; attr < nr_attrs; attr++) {
 641          float data[4];
 642
 643          char *dst = (vert +
 644                       tg->attrib[attr].output_offset);
 645
 646          if (tg->attrib[attr].type == TRANSLATE_ELEMENT_NORMAL) {
 647             const char *src;
 648
 649             if (tg->attrib[attr].instance_divisor) {
 650                src = tg->attrib[attr].input_ptr +
 651                      tg->attrib[attr].input_stride *
 652                      (instance_id / tg->attrib[attr].instance_divisor);
 653             } else {
 654                src = tg->attrib[attr].input_ptr +
 655                      tg->attrib[attr].input_stride * elt;
 656             }
 657
 658             tg->attrib[attr].fetch( src, data );
 659          } else {
 660             data[0] = (float)instance_id;
 661          }
 662
 663          if (0) debug_printf("vert %d attr %d: %f %f %f %f\n",
 664                              i, attr, data[0], data[1], data[2], data[3]);
 665
 666          tg->attrib[attr].emit( data, dst );
 667       }
 668
 669       vert += tg->translate.key.output_stride;
 670    }
 671 }
 672
 673
 674
 675 static void generic_set_buffer( struct translate *translate,
 676                                 unsigned buf,
 677                                 const void *ptr,
 678                                 unsigned stride,
 679                                 unsigned max_index )
 680 {
 681    struct translate_generic *tg = translate_generic(translate);
 682    unsigned i;
 683
 684    for (i = 0; i < tg->nr_attrib; i++) {
 685       if (tg->attrib[i].buffer == buf) {
 686          tg->attrib[i].input_ptr = ((char *)ptr +
 687                                     tg->attrib[i].input_offset);
 688          tg->attrib[i].input_stride = stride;
 689          tg->attrib[i].max_index = max_index;
 690       }
 691    }
 692 }
 693
 694
 695 static void generic_release( struct translate *translate )
 696 {
 697    /* Refcount?
 698     */
 699    FREE(translate);
 700 }
 701
 702 struct translate *translate_generic_create( const struct translate_key *key )
 703 {
 704    struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
 705    unsigned i;
 706
 707    if (tg == NULL)
 708       return NULL;
 709
 710    tg->translate.key = *key;
 711    tg->translate.release = generic_release;
 712    tg->translate.set_buffer = generic_set_buffer;
 713    tg->translate.run_elts = generic_run_elts;
 714    tg->translate.run = generic_run;
 715
 716    for (i = 0; i < key->nr_elements; i++) {
 717       tg->attrib[i].type = key->element[i].type;
 718
 719       tg->attrib[i].fetch = get_fetch_func(key->element[i].input_format);
 720       tg->attrib[i].buffer = key->element[i].input_buffer;
 721       tg->attrib[i].input_offset = key->element[i].input_offset;
 722       tg->attrib[i].instance_divisor = key->element[i].instance_divisor;
 723
 724       tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
 725       tg->attrib[i].output_offset = key->element[i].output_offset;
 726
 727    }
 728
 729    tg->nr_attrib = key->nr_elements;
 730
 731
 732    return &tg->translate;
 733 }