src/gallium/drivers/r600/r600_state_inlines.h

   1 /*
   2  * Copyright 2010 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #ifndef R600_STATE_INLINES_H
  24 #define R600_STATE_INLINES_H
  25
  26 #include "util/u_format.h"
  27 #include "r600d.h"
  28
  29 static INLINE uint32_t r600_translate_blend_function(int blend_func)
  30 {
  31         switch (blend_func) {
  32         case PIPE_BLEND_ADD:
  33                 return V_028804_COMB_DST_PLUS_SRC;
  34         case PIPE_BLEND_SUBTRACT:
  35                 return V_028804_COMB_SRC_MINUS_DST;
  36         case PIPE_BLEND_REVERSE_SUBTRACT:
  37                 return V_028804_COMB_DST_MINUS_SRC;
  38         case PIPE_BLEND_MIN:
  39                 return V_028804_COMB_MIN_DST_SRC;
  40         case PIPE_BLEND_MAX:
  41                 return V_028804_COMB_MAX_DST_SRC;
  42         default:
  43                 R600_ERR("Unknown blend function %d\n", blend_func);
  44                 assert(0);
  45                 break;
  46         }
  47         return 0;
  48 }
  49
  50 static INLINE uint32_t r600_translate_blend_factor(int blend_fact)
  51 {
  52         switch (blend_fact) {
  53         case PIPE_BLENDFACTOR_ONE:
  54                 return V_028804_BLEND_ONE;
  55         case PIPE_BLENDFACTOR_SRC_COLOR:
  56                 return V_028804_BLEND_SRC_COLOR;
  57         case PIPE_BLENDFACTOR_SRC_ALPHA:
  58                 return V_028804_BLEND_SRC_ALPHA;
  59         case PIPE_BLENDFACTOR_DST_ALPHA:
  60                 return V_028804_BLEND_DST_ALPHA;
  61         case PIPE_BLENDFACTOR_DST_COLOR:
  62                 return V_028804_BLEND_DST_COLOR;
  63         case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
  64                 return V_028804_BLEND_SRC_ALPHA_SATURATE;
  65         case PIPE_BLENDFACTOR_CONST_COLOR:
  66                 return V_028804_BLEND_CONST_COLOR;
  67         case PIPE_BLENDFACTOR_CONST_ALPHA:
  68                 return V_028804_BLEND_CONST_ALPHA;
  69         case PIPE_BLENDFACTOR_ZERO:
  70                 return V_028804_BLEND_ZERO;
  71         case PIPE_BLENDFACTOR_INV_SRC_COLOR:
  72                 return V_028804_BLEND_ONE_MINUS_SRC_COLOR;
  73         case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
  74                 return V_028804_BLEND_ONE_MINUS_SRC_ALPHA;
  75         case PIPE_BLENDFACTOR_INV_DST_ALPHA:
  76                 return V_028804_BLEND_ONE_MINUS_DST_ALPHA;
  77         case PIPE_BLENDFACTOR_INV_DST_COLOR:
  78                 return V_028804_BLEND_ONE_MINUS_DST_COLOR;
  79         case PIPE_BLENDFACTOR_INV_CONST_COLOR:
  80                 return V_028804_BLEND_ONE_MINUS_CONST_COLOR;
  81         case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
  82                 return V_028804_BLEND_ONE_MINUS_CONST_ALPHA;
  83         case PIPE_BLENDFACTOR_SRC1_COLOR:
  84                 return V_028804_BLEND_SRC1_COLOR;
  85         case PIPE_BLENDFACTOR_SRC1_ALPHA:
  86                 return V_028804_BLEND_SRC1_ALPHA;
  87         case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
  88                 return V_028804_BLEND_INV_SRC1_COLOR;
  89         case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
  90                 return V_028804_BLEND_INV_SRC1_ALPHA;
  91         default:
  92                 R600_ERR("Bad blend factor %d not supported!\n", blend_fact);
  93                 assert(0);
  94                 break;
  95         }
  96         return 0;
  97 }
  98
  99 static INLINE uint32_t r600_translate_stencil_op(int s_op)
 100 {
 101         switch (s_op) {
 102         case PIPE_STENCIL_OP_KEEP:
 103                 return V_028800_STENCIL_KEEP;
 104         case PIPE_STENCIL_OP_ZERO:
 105                 return V_028800_STENCIL_ZERO;
 106         case PIPE_STENCIL_OP_REPLACE:
 107                 return V_028800_STENCIL_REPLACE;
 108         case PIPE_STENCIL_OP_INCR:
 109                 return V_028800_STENCIL_INCR;
 110         case PIPE_STENCIL_OP_DECR:
 111                 return V_028800_STENCIL_DECR;
 112         case PIPE_STENCIL_OP_INCR_WRAP:
 113                 return V_028800_STENCIL_INCR_WRAP;
 114         case PIPE_STENCIL_OP_DECR_WRAP:
 115                 return V_028800_STENCIL_DECR_WRAP;
 116         case PIPE_STENCIL_OP_INVERT:
 117                 return V_028800_STENCIL_INVERT;
 118         default:
 119                 R600_ERR("Unknown stencil op %d", s_op);
 120                 assert(0);
 121                 break;
 122         }
 123         return 0;
 124 }
 125
 126 static INLINE uint32_t r600_translate_fill(uint32_t func)
 127 {
 128         switch(func) {
 129         case PIPE_POLYGON_MODE_FILL:
 130                 return 2;
 131         case PIPE_POLYGON_MODE_LINE:
 132                 return 1;
 133         case PIPE_POLYGON_MODE_POINT:
 134                 return 0;
 135         default:
 136                 assert(0);
 137                 return 0;
 138         }
 139 }
 140
 141 /* translates straight */
 142 static INLINE uint32_t r600_translate_ds_func(int func)
 143 {
 144         return func;
 145 }
 146
 147 static inline unsigned r600_tex_wrap(unsigned wrap)
 148 {
 149         switch (wrap) {
 150         default:
 151         case PIPE_TEX_WRAP_REPEAT:
 152                 return V_03C000_SQ_TEX_WRAP;
 153         case PIPE_TEX_WRAP_CLAMP:
 154                 return V_03C000_SQ_TEX_CLAMP_HALF_BORDER;
 155         case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 156                 return V_03C000_SQ_TEX_CLAMP_LAST_TEXEL;
 157         case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 158                 return V_03C000_SQ_TEX_CLAMP_BORDER;
 159         case PIPE_TEX_WRAP_MIRROR_REPEAT:
 160                 return V_03C000_SQ_TEX_MIRROR;
 161         case PIPE_TEX_WRAP_MIRROR_CLAMP:
 162                 return V_03C000_SQ_TEX_MIRROR_ONCE_HALF_BORDER;
 163         case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
 164                 return V_03C000_SQ_TEX_MIRROR_ONCE_LAST_TEXEL;
 165         case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
 166                 return V_03C000_SQ_TEX_MIRROR_ONCE_BORDER;
 167         }
 168 }
 169
 170 static inline unsigned r600_tex_filter(unsigned filter)
 171 {
 172         switch (filter) {
 173         default:
 174         case PIPE_TEX_FILTER_NEAREST:
 175                 return V_03C000_SQ_TEX_XY_FILTER_POINT;
 176         case PIPE_TEX_FILTER_LINEAR:
 177                 return V_03C000_SQ_TEX_XY_FILTER_BILINEAR;
 178         }
 179 }
 180
 181 static inline unsigned r600_tex_mipfilter(unsigned filter)
 182 {
 183         switch (filter) {
 184         case PIPE_TEX_MIPFILTER_NEAREST:
 185                 return V_03C000_SQ_TEX_Z_FILTER_POINT;
 186         case PIPE_TEX_MIPFILTER_LINEAR:
 187                 return V_03C000_SQ_TEX_Z_FILTER_LINEAR;
 188         default:
 189         case PIPE_TEX_MIPFILTER_NONE:
 190                 return V_03C000_SQ_TEX_Z_FILTER_NONE;
 191         }
 192 }
 193
 194 static inline unsigned r600_tex_compare(unsigned compare)
 195 {
 196         switch (compare) {
 197         default:
 198         case PIPE_FUNC_NEVER:
 199                 return V_03C000_SQ_TEX_DEPTH_COMPARE_NEVER;
 200         case PIPE_FUNC_LESS:
 201                 return V_03C000_SQ_TEX_DEPTH_COMPARE_LESS;
 202         case PIPE_FUNC_EQUAL:
 203                 return V_03C000_SQ_TEX_DEPTH_COMPARE_EQUAL;
 204         case PIPE_FUNC_LEQUAL:
 205                 return V_03C000_SQ_TEX_DEPTH_COMPARE_LESSEQUAL;
 206         case PIPE_FUNC_GREATER:
 207                 return V_03C000_SQ_TEX_DEPTH_COMPARE_GREATER;
 208         case PIPE_FUNC_NOTEQUAL:
 209                 return V_03C000_SQ_TEX_DEPTH_COMPARE_NOTEQUAL;
 210         case PIPE_FUNC_GEQUAL:
 211                 return V_03C000_SQ_TEX_DEPTH_COMPARE_GREATEREQUAL;
 212         case PIPE_FUNC_ALWAYS:
 213                 return V_03C000_SQ_TEX_DEPTH_COMPARE_ALWAYS;
 214         }
 215 }
 216
 217 static inline unsigned r600_tex_swizzle(unsigned swizzle)
 218 {
 219         switch (swizzle) {
 220         case PIPE_SWIZZLE_RED:
 221                 return V_038010_SQ_SEL_X;
 222         case PIPE_SWIZZLE_GREEN:
 223                 return V_038010_SQ_SEL_Y;
 224         case PIPE_SWIZZLE_BLUE:
 225                 return V_038010_SQ_SEL_Z;
 226         case PIPE_SWIZZLE_ALPHA:
 227                 return V_038010_SQ_SEL_W;
 228         case PIPE_SWIZZLE_ZERO:
 229                 return V_038010_SQ_SEL_0;
 230         default:
 231         case PIPE_SWIZZLE_ONE:
 232                 return V_038010_SQ_SEL_1;
 233         }
 234 }
 235
 236 static inline unsigned r600_format_type(unsigned format_type)
 237 {
 238         switch (format_type) {
 239         default:
 240         case UTIL_FORMAT_TYPE_UNSIGNED:
 241                 return V_038010_SQ_FORMAT_COMP_UNSIGNED;
 242         case UTIL_FORMAT_TYPE_SIGNED:
 243                 return V_038010_SQ_FORMAT_COMP_SIGNED;
 244         case UTIL_FORMAT_TYPE_FIXED:
 245                 return V_038010_SQ_FORMAT_COMP_UNSIGNED_BIASED;
 246         }
 247 }
 248
 249 static inline unsigned r600_tex_dim(unsigned dim)
 250 {
 251         switch (dim) {
 252         default:
 253         case PIPE_TEXTURE_1D:
 254                 return V_038000_SQ_TEX_DIM_1D;
 255         case PIPE_TEXTURE_2D:
 256         case PIPE_TEXTURE_RECT:
 257                 return V_038000_SQ_TEX_DIM_2D;
 258         case PIPE_TEXTURE_3D:
 259                 return V_038000_SQ_TEX_DIM_3D;
 260         case PIPE_TEXTURE_CUBE:
 261                 return V_038000_SQ_TEX_DIM_CUBEMAP;
 262         }
 263 }
 264
 265 static inline uint32_t r600_translate_dbformat(enum pipe_format format)
 266 {
 267         switch (format) {
 268         case PIPE_FORMAT_Z16_UNORM:
 269                 return V_028010_DEPTH_16;
 270         case PIPE_FORMAT_Z24X8_UNORM:
 271                 return V_028010_DEPTH_X8_24;
 272         case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 273                 return V_028010_DEPTH_8_24;
 274         default:
 275                 return ~0;
 276         }
 277 }
 278
 279 static inline uint32_t r600_translate_colorswap(enum pipe_format format)
 280 {
 281         switch (format) {
 282                 /* 8-bit buffers. */
 283         case PIPE_FORMAT_A8_UNORM:
 284         case PIPE_FORMAT_I8_UNORM:
 285         case PIPE_FORMAT_L8_UNORM:
 286         case PIPE_FORMAT_R8_UNORM:
 287         case PIPE_FORMAT_R8_SNORM:
 288                 return V_0280A0_SWAP_STD;
 289
 290                 /* 16-bit buffers. */
 291         case PIPE_FORMAT_B5G6R5_UNORM:
 292                 return V_0280A0_SWAP_STD_REV;
 293
 294         case PIPE_FORMAT_B5G5R5A1_UNORM:
 295         case PIPE_FORMAT_B5G5R5X1_UNORM:
 296                 return V_0280A0_SWAP_ALT;
 297
 298         case PIPE_FORMAT_B4G4R4A4_UNORM:
 299         case PIPE_FORMAT_B4G4R4X4_UNORM:
 300                 return V_0280A0_SWAP_ALT;
 301
 302         case PIPE_FORMAT_Z16_UNORM:
 303                 return V_0280A0_SWAP_STD;
 304
 305         case PIPE_FORMAT_L8A8_UNORM:
 306         case PIPE_FORMAT_R8G8_UNORM:
 307                 return V_0280A0_SWAP_STD;
 308
 309         case PIPE_FORMAT_R16_UNORM:
 310                 return V_0280A0_SWAP_STD;
 311
 312                 /* 32-bit buffers. */
 313
 314         case PIPE_FORMAT_A8B8G8R8_SRGB:
 315                 return V_0280A0_SWAP_STD_REV;
 316         case PIPE_FORMAT_B8G8R8A8_SRGB:
 317                 return V_0280A0_SWAP_ALT;
 318
 319         case PIPE_FORMAT_B8G8R8A8_UNORM:
 320         case PIPE_FORMAT_B8G8R8X8_UNORM:
 321                 return V_0280A0_SWAP_ALT;
 322
 323         case PIPE_FORMAT_A8R8G8B8_UNORM:
 324         case PIPE_FORMAT_X8R8G8B8_UNORM:
 325                 return V_0280A0_SWAP_ALT_REV;
 326         case PIPE_FORMAT_R8G8B8A8_SNORM:
 327         case PIPE_FORMAT_R8G8B8X8_UNORM:
 328                 return V_0280A0_SWAP_STD;
 329
 330         case PIPE_FORMAT_A8B8G8R8_UNORM:
 331         case PIPE_FORMAT_X8B8G8R8_UNORM:
 332                 //        case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
 333                 return V_0280A0_SWAP_STD_REV;
 334
 335         case PIPE_FORMAT_Z24X8_UNORM:
 336         case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 337                 return V_0280A0_SWAP_STD;
 338
 339         case PIPE_FORMAT_X8Z24_UNORM:
 340         case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 341                 return V_0280A0_SWAP_STD;
 342
 343         case PIPE_FORMAT_R10G10B10A2_UNORM:
 344         case PIPE_FORMAT_R10G10B10X2_SNORM:
 345         case PIPE_FORMAT_B10G10R10A2_UNORM:
 346         case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
 347                 return V_0280A0_SWAP_STD_REV;
 348
 349         case PIPE_FORMAT_R16G16_UNORM:
 350                 return V_0280A0_SWAP_STD;
 351
 352                 /* 64-bit buffers. */
 353         case PIPE_FORMAT_R16G16B16A16_UNORM:
 354         case PIPE_FORMAT_R16G16B16A16_SNORM:
 355                 //              return V_0280A0_COLOR_16_16_16_16;
 356         case PIPE_FORMAT_R16G16B16A16_FLOAT:
 357                 //              return V_0280A0_COLOR_16_16_16_16_FLOAT;
 358
 359                 /* 128-bit buffers. */
 360         case PIPE_FORMAT_R32G32B32A32_FLOAT:
 361                 //              return V_0280A0_COLOR_32_32_32_32_FLOAT;
 362                 return 0;
 363         default:
 364                 R600_ERR("unsupported colorswap format %d\n", format);
 365                 return ~0;
 366         }
 367         return ~0;
 368 }
 369
 370 static INLINE uint32_t r600_translate_colorformat(enum pipe_format format)
 371 {
 372         switch (format) {
 373                 /* 8-bit buffers. */
 374         case PIPE_FORMAT_A8_UNORM:
 375         case PIPE_FORMAT_I8_UNORM:
 376         case PIPE_FORMAT_L8_UNORM:
 377         case PIPE_FORMAT_R8_UNORM:
 378         case PIPE_FORMAT_R8_SNORM:
 379                 return V_0280A0_COLOR_8;
 380
 381                 /* 16-bit buffers. */
 382         case PIPE_FORMAT_B5G6R5_UNORM:
 383                 return V_0280A0_COLOR_5_6_5;
 384
 385         case PIPE_FORMAT_B5G5R5A1_UNORM:
 386         case PIPE_FORMAT_B5G5R5X1_UNORM:
 387                 return V_0280A0_COLOR_1_5_5_5;
 388
 389         case PIPE_FORMAT_B4G4R4A4_UNORM:
 390         case PIPE_FORMAT_B4G4R4X4_UNORM:
 391                 return V_0280A0_COLOR_4_4_4_4;
 392
 393         case PIPE_FORMAT_Z16_UNORM:
 394                 return V_0280A0_COLOR_16;
 395
 396         case PIPE_FORMAT_L8A8_UNORM:
 397         case PIPE_FORMAT_R8G8_UNORM:
 398                 return V_0280A0_COLOR_8_8;
 399
 400         case PIPE_FORMAT_R16_UNORM:
 401                 return V_0280A0_COLOR_16;
 402
 403                 /* 32-bit buffers. */
 404         case PIPE_FORMAT_A8B8G8R8_SRGB:
 405         case PIPE_FORMAT_A8B8G8R8_UNORM:
 406         case PIPE_FORMAT_A8R8G8B8_UNORM:
 407         case PIPE_FORMAT_B8G8R8A8_SRGB:
 408         case PIPE_FORMAT_B8G8R8A8_UNORM:
 409         case PIPE_FORMAT_B8G8R8X8_UNORM:
 410         case PIPE_FORMAT_R8G8B8A8_SNORM:
 411         case PIPE_FORMAT_R8G8B8A8_UNORM:
 412         case PIPE_FORMAT_R8G8B8X8_UNORM:
 413         case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
 414         case PIPE_FORMAT_X8B8G8R8_UNORM:
 415         case PIPE_FORMAT_X8R8G8B8_UNORM:
 416         case PIPE_FORMAT_R8G8B8_UNORM:
 417                 return V_0280A0_COLOR_8_8_8_8;
 418
 419         case PIPE_FORMAT_R10G10B10A2_UNORM:
 420         case PIPE_FORMAT_R10G10B10X2_SNORM:
 421         case PIPE_FORMAT_B10G10R10A2_UNORM:
 422         case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
 423                 return V_0280A0_COLOR_10_10_10_2;
 424
 425         case PIPE_FORMAT_Z24X8_UNORM:
 426         case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 427                 return V_0280A0_COLOR_8_24;
 428
 429         case PIPE_FORMAT_X8Z24_UNORM:
 430         case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 431                 return V_0280A0_COLOR_24_8;
 432
 433         case PIPE_FORMAT_R32_FLOAT:
 434                 return V_0280A0_COLOR_32_FLOAT;
 435
 436         case PIPE_FORMAT_R16G16_FLOAT:
 437                 return V_0280A0_COLOR_16_16_FLOAT;
 438
 439         case PIPE_FORMAT_R16G16_SSCALED:
 440         case PIPE_FORMAT_R16G16_UNORM:
 441                 return V_0280A0_COLOR_16_16;
 442
 443
 444                 /* 64-bit buffers. */
 445         case PIPE_FORMAT_R16G16B16_USCALED:
 446         case PIPE_FORMAT_R16G16B16A16_USCALED:
 447         case PIPE_FORMAT_R16G16B16_SSCALED:
 448         case PIPE_FORMAT_R16G16B16A16_SSCALED:
 449         case PIPE_FORMAT_R16G16B16A16_UNORM:
 450         case PIPE_FORMAT_R16G16B16A16_SNORM:
 451                 return V_0280A0_COLOR_16_16_16_16;
 452
 453         case PIPE_FORMAT_R16G16B16_FLOAT:
 454         case PIPE_FORMAT_R16G16B16A16_FLOAT:
 455                 return V_0280A0_COLOR_16_16_16_16_FLOAT;
 456
 457         case PIPE_FORMAT_R32G32_FLOAT:
 458                 return V_0280A0_COLOR_32_32_FLOAT;
 459
 460         case PIPE_FORMAT_R32G32_USCALED:
 461         case PIPE_FORMAT_R32G32_SSCALED:
 462                 return V_0280A0_COLOR_32_32;
 463
 464                 /* 128-bit buffers. */
 465         case PIPE_FORMAT_R32G32B32_FLOAT:
 466                 return V_0280A0_COLOR_32_32_32_FLOAT;
 467         case PIPE_FORMAT_R32G32B32A32_FLOAT:
 468                 return V_0280A0_COLOR_32_32_32_32_FLOAT;
 469
 470                 /* YUV buffers. */
 471         case PIPE_FORMAT_UYVY:
 472         case PIPE_FORMAT_YUYV:
 473         default:
 474                 R600_ERR("unsupported color format %d %s\n", format, util_format_name(format));
 475                 return ~0; /* Unsupported. */
 476         }
 477 }
 478
 479 static INLINE boolean r600_is_sampler_format_supported(enum pipe_format format)
 480 {
 481         return r600_translate_texformat(format, NULL, NULL, NULL) != ~0;
 482 }
 483
 484 static INLINE boolean r600_is_colorbuffer_format_supported(enum pipe_format format)
 485 {
 486         return r600_translate_colorformat(format) != ~0 &&
 487                 r600_translate_colorswap(format) != ~0;
 488 }
 489
 490 static INLINE boolean r600_is_zs_format_supported(enum pipe_format format)
 491 {
 492         return r600_translate_dbformat(format) != ~0;
 493 }
 494
 495 static INLINE boolean r600_is_vertex_format_supported(enum pipe_format format)
 496 {
 497         return r600_translate_colorformat(format) != ~0;
 498 }
 499
 500 static INLINE uint32_t r600_translate_vertex_data_type(enum pipe_format format)
 501 {
 502         uint32_t result = 0;
 503         const struct util_format_description *desc;
 504         unsigned i;
 505
 506         desc = util_format_description(format);
 507         if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
 508                 goto out_unknown;
 509         }
 510
 511         /* Find the first non-VOID channel. */
 512         for (i = 0; i < 4; i++) {
 513                 if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
 514                         break;
 515                 }
 516         }
 517
 518         switch (desc->channel[i].type) {
 519                 /* Half-floats, floats, doubles */
 520         case UTIL_FORMAT_TYPE_FLOAT:
 521                 switch (desc->channel[i].size) {
 522                 case 16:
 523                         switch (desc->nr_channels) {
 524                         case 1:
 525                                 result = V_038008_FMT_16_FLOAT;
 526                                 break;
 527                         case 2:
 528                                 result = V_038008_FMT_16_16_FLOAT;
 529                                 break;
 530                         case 3:
 531                                 result = V_038008_FMT_16_16_16_FLOAT;
 532                                 break;
 533                         case 4:
 534                                 result = V_038008_FMT_16_16_16_16_FLOAT;
 535                                 break;
 536                         }
 537                         break;
 538                 case 32:
 539                         switch (desc->nr_channels) {
 540                         case 1:
 541                                 result = V_038008_FMT_32_FLOAT;
 542                                 break;
 543                         case 2:
 544                                 result = V_038008_FMT_32_32_FLOAT;
 545                                 break;
 546                         case 3:
 547                                 result = V_038008_FMT_32_32_32_FLOAT;
 548                                 break;
 549                         case 4:
 550                                 result = V_038008_FMT_32_32_32_32_FLOAT;
 551                                 break;
 552                         }
 553                         break;
 554                 default:
 555                         goto out_unknown;
 556                 }
 557                 break;
 558                 /* Unsigned ints */
 559         case UTIL_FORMAT_TYPE_UNSIGNED:
 560                 /* Signed ints */
 561         case UTIL_FORMAT_TYPE_SIGNED:
 562                 switch (desc->channel[i].size) {
 563                 case 8:
 564                         switch (desc->nr_channels) {
 565                         case 1:
 566                                 result = V_038008_FMT_8;
 567                                 break;
 568                         case 2:
 569                                 result = V_038008_FMT_8_8;
 570                                 break;
 571                         case 3:
 572                         //      result = V_038008_FMT_8_8_8; /* fails piglit draw-vertices test */
 573                         //      break;
 574                         case 4:
 575                                 result = V_038008_FMT_8_8_8_8;
 576                                 break;
 577                         }
 578                         break;
 579                 case 16:
 580                         switch (desc->nr_channels) {
 581                         case 1:
 582                                 result = V_038008_FMT_16;
 583                                 break;
 584                         case 2:
 585                                 result = V_038008_FMT_16_16;
 586                                 break;
 587                         case 3:
 588                         //      result = V_038008_FMT_16_16_16; /* fails piglit draw-vertices test */
 589                         //      break;
 590                         case 4:
 591                                 result = V_038008_FMT_16_16_16_16;
 592                                 break;
 593                         }
 594                         break;
 595                 case 32:
 596                         switch (desc->nr_channels) {
 597                         case 1:
 598                                 result = V_038008_FMT_32;
 599                                 break;
 600                         case 2:
 601                                 result = V_038008_FMT_32_32;
 602                                 break;
 603                         case 3:
 604                                 result = V_038008_FMT_32_32_32;
 605                                 break;
 606                         case 4:
 607                                 result = V_038008_FMT_32_32_32_32;
 608                                 break;
 609                         }
 610                         break;
 611                 default:
 612                         goto out_unknown;
 613                 }
 614                 break;
 615         default:
 616                 goto out_unknown;
 617         }
 618
 619         result = S_038008_DATA_FORMAT(result);
 620
 621         if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
 622                 result |= S_038008_FORMAT_COMP_ALL(1);
 623         }
 624         if (desc->channel[i].normalized) {
 625                 result |= S_038008_NUM_FORMAT_ALL(0);
 626         } else {
 627                 result |= S_038008_NUM_FORMAT_ALL(2);
 628         }
 629         return result;
 630 out_unknown:
 631         R600_ERR("unsupported vertex format %s\n", util_format_name(format));
 632         return ~0;
 633 }
 634
 635 #endif