src/mesa/drivers/dri/unichrome/via_tex.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28
  29 #include "main/glheader.h"
  30 #include "main/macros.h"
  31 #include "main/mtypes.h"
  32 #include "main/enums.h"
  33 #include "main/formats.h"
  34 #include "main/context.h"
  35 #include "main/mipmap.h"
  36 #include "main/mm.h"
  37 #include "main/pbo.h"
  38 #include "main/simple_list.h"
  39 #include "main/texobj.h"
  40 #include "main/texstore.h"
  41
  42 #include "via_context.h"
  43 #include "via_fb.h"
  44 #include "via_tex.h"
  45 #include "via_ioctl.h"
  46 #include "via_3d_reg.h"
  47
  48 static gl_format
  49 viaChooseTexFormat( struct gl_context *ctx, GLint internalFormat,
  50                     GLenum format, GLenum type )
  51 {
  52    struct via_context *vmesa = VIA_CONTEXT(ctx);
  53    const GLboolean do32bpt = ( vmesa->viaScreen->bitsPerPixel == 32
  54 /*                             && vmesa->viaScreen->textureSize > 4*1024*1024 */
  55       );
  56
  57
  58    switch ( internalFormat ) {
  59    case 4:
  60    case GL_RGBA:
  61    case GL_COMPRESSED_RGBA:
  62       if ( format == GL_BGRA ) {
  63          if ( type == GL_UNSIGNED_INT_8_8_8_8_REV ||
  64               type == GL_UNSIGNED_BYTE ) {
  65             return MESA_FORMAT_ARGB8888;
  66          }
  67          else if ( type == GL_UNSIGNED_SHORT_4_4_4_4_REV ) {
  68             return MESA_FORMAT_ARGB4444;
  69          }
  70          else if ( type == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
  71             return MESA_FORMAT_ARGB1555;
  72          }
  73       }
  74       else if ( type == GL_UNSIGNED_BYTE ||
  75                 type == GL_UNSIGNED_INT_8_8_8_8_REV ||
  76                 type == GL_UNSIGNED_INT_8_8_8_8 ) {
  77          return MESA_FORMAT_ARGB8888;
  78       }
  79       return do32bpt ? MESA_FORMAT_ARGB8888 : MESA_FORMAT_ARGB4444;
  80
  81    case 3:
  82    case GL_RGB:
  83    case GL_COMPRESSED_RGB:
  84       if ( format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 ) {
  85          return MESA_FORMAT_RGB565;
  86       }
  87       else if ( type == GL_UNSIGNED_BYTE ) {
  88          return MESA_FORMAT_ARGB8888;
  89       }
  90       return do32bpt ? MESA_FORMAT_ARGB8888 : MESA_FORMAT_RGB565;
  91
  92    case GL_RGBA8:
  93    case GL_RGB10_A2:
  94    case GL_RGBA12:
  95    case GL_RGBA16:
  96       return MESA_FORMAT_ARGB8888;
  97
  98    case GL_RGBA4:
  99    case GL_RGBA2:
 100       return MESA_FORMAT_ARGB4444;
 101
 102    case GL_RGB5_A1:
 103       return MESA_FORMAT_ARGB1555;
 104
 105    case GL_RGB8:
 106    case GL_RGB10:
 107    case GL_RGB12:
 108    case GL_RGB16:
 109       return MESA_FORMAT_ARGB8888;
 110
 111    case GL_RGB5:
 112    case GL_RGB4:
 113    case GL_R3_G3_B2:
 114       return MESA_FORMAT_RGB565;
 115
 116    case GL_ALPHA:
 117    case GL_ALPHA4:
 118    case GL_ALPHA8:
 119    case GL_ALPHA12:
 120    case GL_ALPHA16:
 121    case GL_COMPRESSED_ALPHA:
 122       return MESA_FORMAT_A8;
 123
 124    case 1:
 125    case GL_LUMINANCE:
 126    case GL_LUMINANCE4:
 127    case GL_LUMINANCE8:
 128    case GL_LUMINANCE12:
 129    case GL_LUMINANCE16:
 130    case GL_COMPRESSED_LUMINANCE:
 131       return MESA_FORMAT_L8;
 132
 133    case 2:
 134    case GL_LUMINANCE_ALPHA:
 135    case GL_LUMINANCE4_ALPHA4:
 136    case GL_LUMINANCE6_ALPHA2:
 137    case GL_LUMINANCE8_ALPHA8:
 138    case GL_LUMINANCE12_ALPHA4:
 139    case GL_LUMINANCE12_ALPHA12:
 140    case GL_LUMINANCE16_ALPHA16:
 141    case GL_COMPRESSED_LUMINANCE_ALPHA:
 142       return MESA_FORMAT_AL88;
 143
 144    case GL_INTENSITY:
 145    case GL_INTENSITY4:
 146    case GL_INTENSITY8:
 147    case GL_INTENSITY12:
 148    case GL_INTENSITY16:
 149    case GL_COMPRESSED_INTENSITY:
 150       return MESA_FORMAT_I8;
 151
 152    case GL_YCBCR_MESA:
 153       if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
 154           type == GL_UNSIGNED_BYTE)
 155          return MESA_FORMAT_YCBCR;
 156       else
 157          return MESA_FORMAT_YCBCR_REV;
 158
 159    case GL_COMPRESSED_RGB_FXT1_3DFX:
 160       return MESA_FORMAT_RGB_FXT1;
 161    case GL_COMPRESSED_RGBA_FXT1_3DFX:
 162       return MESA_FORMAT_RGBA_FXT1;
 163
 164    case GL_RGB_S3TC:
 165    case GL_RGB4_S3TC:
 166    case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
 167       return MESA_FORMAT_RGB_DXT1;
 168
 169    case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
 170       return MESA_FORMAT_RGBA_DXT1;
 171
 172    case GL_RGBA_S3TC:
 173    case GL_RGBA4_S3TC:
 174    case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
 175       return MESA_FORMAT_RGBA_DXT3;
 176
 177    case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
 178       return MESA_FORMAT_RGBA_DXT5;
 179
 180    case GL_COLOR_INDEX:
 181    case GL_COLOR_INDEX1_EXT:
 182    case GL_COLOR_INDEX2_EXT:
 183    case GL_COLOR_INDEX4_EXT:
 184    case GL_COLOR_INDEX8_EXT:
 185    case GL_COLOR_INDEX12_EXT:
 186    case GL_COLOR_INDEX16_EXT:
 187       return MESA_FORMAT_CI8;
 188
 189    default:
 190       fprintf(stderr, "unexpected texture format %s in %s\n",
 191               _mesa_lookup_enum_by_nr(internalFormat),
 192               __FUNCTION__);
 193       return MESA_FORMAT_NONE;
 194    }
 195
 196    return MESA_FORMAT_NONE; /* never get here */
 197 }
 198
 199
 200 static const char *get_memtype_name( GLint memType )
 201 {
 202    static const char *names[] = {
 203       "VIA_MEM_VIDEO",
 204       "VIA_MEM_AGP",
 205       "VIA_MEM_SYSTEM",
 206       "VIA_MEM_MIXED",
 207       "VIA_MEM_UNKNOWN"
 208    };
 209
 210    return names[memType];
 211 }
 212
 213
 214 static GLboolean viaMoveTexBuffers( struct via_context *vmesa,
 215                                     struct via_tex_buffer **buffers,
 216                                     GLuint nr,
 217                                     GLint newMemType )
 218 {
 219    struct via_tex_buffer *newTexBuf[VIA_MAX_TEXLEVELS];
 220    GLint i;
 221
 222    if (VIA_DEBUG & DEBUG_TEXTURE)
 223       fprintf(stderr, "%s to %s\n",
 224               __FUNCTION__,
 225               get_memtype_name(newMemType));
 226
 227    memset(newTexBuf, 0, sizeof(newTexBuf));
 228
 229    /* First do all the allocations (or fail):
 230     */
 231    for (i = 0; i < nr; i++) {
 232       if (buffers[i]->memType != newMemType) {
 233
 234          /* Don't allow uploads in a thrash state.  Should try and
 235           * catch this earlier.
 236           */
 237          if (vmesa->thrashing && newMemType != VIA_MEM_SYSTEM)
 238             goto cleanup;
 239
 240          newTexBuf[i] = via_alloc_texture(vmesa,
 241                                           buffers[i]->size,
 242                                           newMemType);
 243          if (!newTexBuf[i])
 244             goto cleanup;
 245       }
 246    }
 247
 248
 249    /* Now copy all the image data and free the old texture memory.
 250     */
 251    for (i = 0; i < nr; i++) {
 252       if (newTexBuf[i]) {
 253          memcpy(newTexBuf[i]->bufAddr,
 254                 buffers[i]->bufAddr,
 255                 buffers[i]->size);
 256
 257          newTexBuf[i]->image = buffers[i]->image;
 258          newTexBuf[i]->image->texMem = newTexBuf[i];
 259          newTexBuf[i]->image->image.Data = newTexBuf[i]->bufAddr;
 260          via_free_texture(vmesa, buffers[i]);
 261       }
 262    }
 263
 264    if (VIA_DEBUG & DEBUG_TEXTURE)
 265       fprintf(stderr, "%s - success\n", __FUNCTION__);
 266
 267    return GL_TRUE;
 268
 269  cleanup:
 270    /* Release any allocations made prior to failure:
 271     */
 272    if (VIA_DEBUG & DEBUG_TEXTURE)
 273       fprintf(stderr, "%s - failed\n", __FUNCTION__);
 274
 275    for (i = 0; i < nr; i++) {
 276       if (newTexBuf[i]) {
 277          via_free_texture(vmesa, newTexBuf[i]);
 278       }
 279    }
 280
 281    return GL_FALSE;
 282 }
 283
 284
 285 static GLboolean viaMoveTexObject( struct via_context *vmesa,
 286                                    struct via_texture_object *viaObj,
 287                                    GLint newMemType )
 288 {
 289    struct via_texture_image **viaImage =
 290       (struct via_texture_image **)&viaObj->obj.Image[0][0];
 291    struct via_tex_buffer *buffers[VIA_MAX_TEXLEVELS];
 292    GLuint i, nr = 0;
 293
 294    for (i = viaObj->firstLevel; i <= viaObj->lastLevel; i++)
 295       buffers[nr++] = viaImage[i]->texMem;
 296
 297    if (viaMoveTexBuffers( vmesa, &buffers[0], nr, newMemType )) {
 298       viaObj->memType = newMemType;
 299       return GL_TRUE;
 300    }
 301
 302    return GL_FALSE;
 303 }
 304
 305
 306
 307 static GLboolean viaSwapInTexObject( struct via_context *vmesa,
 308                                      struct via_texture_object *viaObj )
 309 {
 310    const struct via_texture_image *baseImage =
 311       (struct via_texture_image *)viaObj->obj.Image[0][viaObj->obj.BaseLevel];
 312
 313    if (VIA_DEBUG & DEBUG_TEXTURE)
 314       fprintf(stderr, "%s\n", __FUNCTION__);
 315
 316    if (baseImage->texMem->memType != VIA_MEM_SYSTEM)
 317       return viaMoveTexObject( vmesa, viaObj, baseImage->texMem->memType );
 318
 319    return (viaMoveTexObject( vmesa, viaObj, VIA_MEM_AGP ) ||
 320            viaMoveTexObject( vmesa, viaObj, VIA_MEM_VIDEO ));
 321 }
 322
 323
 324 /* This seems crude, but it asks a fairly pertinent question and gives
 325  * an accurate answer:
 326  */
 327 static GLboolean viaIsTexMemLow( struct via_context *vmesa,
 328                                  GLuint heap )
 329 {
 330    struct via_tex_buffer *buf =  via_alloc_texture(vmesa, 512 * 1024, heap );
 331    if (!buf)
 332       return GL_TRUE;
 333
 334    via_free_texture(vmesa, buf);
 335    return GL_FALSE;
 336 }
 337
 338
 339 /* Speculatively move texture images which haven't been used in a
 340  * while back to system memory.
 341  *
 342  * TODO: only do this when texture memory is low.
 343  *
 344  * TODO: use dma.
 345  *
 346  * TODO: keep the fb/agp version hanging around and use the local
 347  * version as backing store, so re-upload might be avoided.
 348  *
 349  * TODO: do this properly in the kernel...
 350  */
 351 GLboolean viaSwapOutWork( struct via_context *vmesa )
 352 {
 353    struct via_tex_buffer *s, *tmp;
 354    GLuint done = 0;
 355    GLuint heap, target;
 356
 357    if (VIA_DEBUG & DEBUG_TEXTURE)
 358       fprintf(stderr, "%s VID %d AGP %d SYS %d\n", __FUNCTION__,
 359               vmesa->total_alloc[VIA_MEM_VIDEO],
 360               vmesa->total_alloc[VIA_MEM_AGP],
 361               vmesa->total_alloc[VIA_MEM_SYSTEM]);
 362
 363
 364    for (heap = VIA_MEM_VIDEO; heap <= VIA_MEM_AGP; heap++) {
 365       GLuint nr = 0, sz = 0;
 366
 367       if (vmesa->thrashing) {
 368          if (VIA_DEBUG & DEBUG_TEXTURE)
 369             fprintf(stderr, "Heap %d: trash flag\n", heap);
 370          target = 1*1024*1024;
 371       }
 372       else if (viaIsTexMemLow(vmesa, heap)) {
 373          if (VIA_DEBUG & DEBUG_TEXTURE)
 374             fprintf(stderr, "Heap %d: low memory\n", heap);
 375          target = 64*1024;
 376       }
 377       else {
 378          if (VIA_DEBUG & DEBUG_TEXTURE)
 379             fprintf(stderr, "Heap %d: nothing to do\n", heap);
 380          continue;
 381       }
 382
 383       foreach_s( s, tmp, &vmesa->tex_image_list[heap] ) {
 384          if (s->lastUsed < vmesa->lastSwap[1]) {
 385             struct via_texture_object *viaObj =
 386                (struct via_texture_object *) s->image->image.TexObject;
 387
 388             if (VIA_DEBUG & DEBUG_TEXTURE)
 389                fprintf(stderr,
 390                        "back copy tex sz %d, lastUsed %d lastSwap %d\n",
 391                        s->size, s->lastUsed, vmesa->lastSwap[1]);
 392
 393             if (viaMoveTexBuffers( vmesa, &s, 1, VIA_MEM_SYSTEM )) {
 394                viaObj->memType = VIA_MEM_MIXED;
 395                done += s->size;
 396             }
 397             else {
 398                if (VIA_DEBUG & DEBUG_TEXTURE)
 399                   fprintf(stderr, "Failed to back copy texture!\n");
 400                sz += s->size;
 401             }
 402          }
 403          else {
 404             nr ++;
 405             sz += s->size;
 406          }
 407
 408          if (done > target) {
 409             vmesa->thrashing = GL_FALSE; /* might not get set otherwise? */
 410             return GL_TRUE;
 411          }
 412       }
 413
 414       assert(sz == vmesa->total_alloc[heap]);
 415
 416       if (VIA_DEBUG & DEBUG_TEXTURE)
 417          fprintf(stderr, "Heap %d: nr %d tot sz %d\n", heap, nr, sz);
 418    }
 419
 420
 421    return done != 0;
 422 }
 423
 424
 425
 426 /* Basically, just collect the image dimensions and addresses for each
 427  * image and update the texture object state accordingly.
 428  */
 429 static GLboolean viaSetTexImages(struct gl_context *ctx,
 430                                  struct gl_texture_object *texObj)
 431 {
 432    struct via_context *vmesa = VIA_CONTEXT(ctx);
 433    struct via_texture_object *viaObj = (struct via_texture_object *)texObj;
 434    const struct via_texture_image *baseImage =
 435       (struct via_texture_image *)texObj->Image[0][texObj->BaseLevel];
 436    GLint firstLevel, lastLevel, numLevels;
 437    GLuint texFormat;
 438    GLint w, h, p;
 439    GLint i, j = 0, k = 0, l = 0, m = 0;
 440    GLuint texBase;
 441    GLuint basH = 0;
 442    GLuint widthExp = 0;
 443    GLuint heightExp = 0;
 444
 445    switch (baseImage->image.TexFormat) {
 446    case MESA_FORMAT_ARGB8888:
 447       texFormat = HC_HTXnFM_ARGB8888;
 448       break;
 449    case MESA_FORMAT_ARGB4444:
 450       texFormat = HC_HTXnFM_ARGB4444;
 451       break;
 452    case MESA_FORMAT_RGB565:
 453       texFormat = HC_HTXnFM_RGB565;
 454       break;
 455    case MESA_FORMAT_ARGB1555:
 456       texFormat = HC_HTXnFM_ARGB1555;
 457       break;
 458    case MESA_FORMAT_RGB888:
 459       texFormat = HC_HTXnFM_ARGB0888;
 460       break;
 461    case MESA_FORMAT_L8:
 462       texFormat = HC_HTXnFM_L8;
 463       break;
 464    case MESA_FORMAT_I8:
 465       texFormat = HC_HTXnFM_T8;
 466       break;
 467    case MESA_FORMAT_CI8:
 468       texFormat = HC_HTXnFM_Index8;
 469       break;
 470    case MESA_FORMAT_AL88:
 471       texFormat = HC_HTXnFM_AL88;
 472       break;
 473    case MESA_FORMAT_A8:
 474       texFormat = HC_HTXnFM_A8;
 475       break;
 476    default:
 477       _mesa_problem(vmesa->glCtx, "Bad texture format in viaSetTexImages");
 478       return GL_FALSE;
 479    }
 480
 481    /* Compute which mipmap levels we really want to send to the hardware.
 482     * This depends on the base image size, GL_TEXTURE_MIN_LOD,
 483     * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
 484     * Yes, this looks overly complicated, but it's all needed.
 485     */
 486    if (texObj->Sampler.MinFilter == GL_LINEAR || texObj->Sampler.MinFilter == GL_NEAREST) {
 487       firstLevel = lastLevel = texObj->BaseLevel;
 488    }
 489    else {
 490       firstLevel = texObj->BaseLevel + (GLint)(texObj->Sampler.MinLod + 0.5);
 491       firstLevel = MAX2(firstLevel, texObj->BaseLevel);
 492       lastLevel = texObj->BaseLevel + (GLint)(texObj->Sampler.MaxLod + 0.5);
 493       lastLevel = MAX2(lastLevel, texObj->BaseLevel);
 494       lastLevel = MIN2(lastLevel, texObj->BaseLevel + baseImage->image.MaxLog2);
 495       lastLevel = MIN2(lastLevel, texObj->MaxLevel);
 496       lastLevel = MAX2(firstLevel, lastLevel);     /* need at least one level */
 497    }
 498
 499    numLevels = lastLevel - firstLevel + 1;
 500
 501    /* The hardware supports only 10 mipmap levels; ignore higher levels.
 502     */
 503    if ((numLevels > 10) && (ctx->Const.MaxTextureLevels > 10)) {
 504        lastLevel -= numLevels - 10;
 505        numLevels = 10;
 506    }
 507
 508    /* save these values, check if they effect the residency of the
 509     * texture:
 510     */
 511    if (viaObj->firstLevel != firstLevel ||
 512        viaObj->lastLevel != lastLevel) {
 513       viaObj->firstLevel = firstLevel;
 514       viaObj->lastLevel = lastLevel;
 515       viaObj->memType = VIA_MEM_MIXED;
 516    }
 517
 518    if (VIA_DEBUG & DEBUG_TEXTURE & 0)
 519       fprintf(stderr, "%s, current memType: %s\n",
 520               __FUNCTION__,
 521               get_memtype_name(viaObj->memType));
 522
 523
 524    if (viaObj->memType == VIA_MEM_MIXED ||
 525        viaObj->memType == VIA_MEM_SYSTEM) {
 526       if (!viaSwapInTexObject(vmesa, viaObj)) {
 527          if (VIA_DEBUG & DEBUG_TEXTURE)
 528             if (!vmesa->thrashing)
 529                fprintf(stderr, "Thrashing flag set for frame %d\n",
 530                        vmesa->swap_count);
 531          vmesa->thrashing = GL_TRUE;
 532          return GL_FALSE;
 533       }
 534    }
 535
 536    if (viaObj->memType == VIA_MEM_AGP)
 537       viaObj->regTexFM = (HC_SubA_HTXnFM << 24) | HC_HTXnLoc_AGP | texFormat;
 538    else
 539       viaObj->regTexFM = (HC_SubA_HTXnFM << 24) | HC_HTXnLoc_Local | texFormat;
 540
 541
 542    for (i = 0; i < numLevels; i++) {
 543       struct via_texture_image *viaImage =
 544          (struct via_texture_image *)texObj->Image[0][firstLevel + i];
 545
 546       w = viaImage->image.WidthLog2;
 547       h = viaImage->image.HeightLog2;
 548       p = viaImage->pitchLog2;
 549
 550       assert(viaImage->texMem->memType == viaObj->memType);
 551
 552       texBase = viaImage->texMem->texBase;
 553       if (!texBase) {
 554          if (VIA_DEBUG & DEBUG_TEXTURE)
 555             fprintf(stderr, "%s: no texBase[%d]\n", __FUNCTION__, i);
 556          return GL_FALSE;
 557       }
 558
 559       /* Image has to remain resident until the coming fence is retired.
 560        */
 561       move_to_head( &vmesa->tex_image_list[viaImage->texMem->memType],
 562                     viaImage->texMem );
 563       viaImage->texMem->lastUsed = vmesa->lastBreadcrumbWrite;
 564
 565
 566       viaObj->regTexBaseAndPitch[i].baseL =
 567          ((HC_SubA_HTXnL0BasL + i) << 24) | (texBase & 0xFFFFFF);
 568
 569       viaObj->regTexBaseAndPitch[i].pitchLog2 =
 570          ((HC_SubA_HTXnL0Pit + i) << 24) | (p << 20);
 571
 572
 573       /* The base high bytes for each 3 levels are packed
 574        * together into one register:
 575        */
 576       j = i / 3;
 577       k = 3 - (i % 3);
 578       basH |= ((texBase & 0xFF000000) >> (k << 3));
 579       if (k == 1) {
 580          viaObj->regTexBaseH[j] = ((j + HC_SubA_HTXnL012BasH) << 24) | basH;
 581          basH = 0;
 582       }
 583
 584       /* Likewise, sets of 6 log2width and log2height values are
 585        * packed into individual registers:
 586        */
 587       l = i / 6;
 588       m = i % 6;
 589       widthExp |= (((GLuint)w & 0xF) << (m << 2));
 590       heightExp |= (((GLuint)h & 0xF) << (m << 2));
 591       if (m == 5) {
 592          viaObj->regTexWidthLog2[l] =
 593             (l + HC_SubA_HTXnL0_5WE) << 24 | widthExp;
 594          viaObj->regTexHeightLog2[l] =
 595             (l + HC_SubA_HTXnL0_5HE) << 24 | heightExp;
 596          widthExp = 0;
 597          heightExp = 0;
 598       }
 599       if (w) w--;
 600       if (h) h--;
 601       if (p) p--;
 602    }
 603
 604    if (k != 1) {
 605       viaObj->regTexBaseH[j] = ((j + HC_SubA_HTXnL012BasH) << 24) | basH;
 606    }
 607    if (m != 5) {
 608       viaObj->regTexWidthLog2[l] = (l + HC_SubA_HTXnL0_5WE) << 24 | widthExp;
 609       viaObj->regTexHeightLog2[l] = (l + HC_SubA_HTXnL0_5HE) << 24 | heightExp;
 610    }
 611
 612    return GL_TRUE;
 613 }
 614
 615
 616 GLboolean viaUpdateTextureState( struct gl_context *ctx )
 617 {
 618    struct gl_texture_unit *texUnit = ctx->Texture.Unit;
 619    GLuint i;
 620
 621    for (i = 0; i < 2; i++) {
 622       if (texUnit[i]._ReallyEnabled == TEXTURE_2D_BIT ||
 623           texUnit[i]._ReallyEnabled == TEXTURE_1D_BIT) {
 624
 625          if (!viaSetTexImages(ctx, texUnit[i]._Current))
 626             return GL_FALSE;
 627       }
 628       else if (texUnit[i]._ReallyEnabled) {
 629          return GL_FALSE;
 630       }
 631    }
 632
 633    return GL_TRUE;
 634 }
 635
 636
 637
 638
 639
 640
 641
 642
 643 static void viaTexImage(struct gl_context *ctx,
 644                         GLint dims,
 645                         GLenum target, GLint level,
 646                         GLint internalFormat,
 647                         GLint width, GLint height, GLint border,
 648                         GLenum format, GLenum type, const void *pixels,
 649                         const struct gl_pixelstore_attrib *packing,
 650                         struct gl_texture_object *texObj,
 651                         struct gl_texture_image *texImage)
 652 {
 653    struct via_context *vmesa = VIA_CONTEXT(ctx);
 654    GLint postConvWidth = width;
 655    GLint postConvHeight = height;
 656    GLint texelBytes, sizeInBytes;
 657    struct via_texture_object *viaObj = (struct via_texture_object *)texObj;
 658    struct via_texture_image *viaImage = (struct via_texture_image *)texImage;
 659    int heaps[3], nheaps, i;
 660
 661    if (!is_empty_list(&vmesa->freed_tex_buffers)) {
 662       viaCheckBreadcrumb(vmesa, 0);
 663       via_release_pending_textures(vmesa);
 664    }
 665
 666    /* choose the texture format */
 667    texImage->TexFormat = viaChooseTexFormat(ctx, internalFormat,
 668                                             format, type);
 669
 670    assert(texImage->TexFormat);
 671
 672    texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
 673
 674    /* Minimum pitch of 32 bytes */
 675    if (postConvWidth * texelBytes < 32) {
 676       postConvWidth = 32 / texelBytes;
 677       texImage->RowStride = postConvWidth;
 678    }
 679
 680    assert(texImage->RowStride == postConvWidth);
 681    viaImage->pitchLog2 = _mesa_logbase2(postConvWidth * texelBytes);
 682
 683    /* allocate memory */
 684    if (_mesa_is_format_compressed(texImage->TexFormat))
 685       sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
 686                                             texImage->Width,
 687                                             texImage->Height,
 688                                             texImage->Depth);
 689    else
 690       sizeInBytes = postConvWidth * postConvHeight * texelBytes;
 691
 692
 693    /* Attempt to allocate texture memory directly, otherwise use main
 694     * memory and this texture will always be a fallback.   FIXME!
 695     *
 696     * TODO: make room in agp if this fails.
 697     * TODO: use fb ram for textures as well.
 698     */
 699
 700
 701    switch (viaObj->memType) {
 702    case VIA_MEM_UNKNOWN:
 703       heaps[0] = VIA_MEM_AGP;
 704       heaps[1] = VIA_MEM_VIDEO;
 705       heaps[2] = VIA_MEM_SYSTEM;
 706       nheaps = 3;
 707       break;
 708    case VIA_MEM_AGP:
 709    case VIA_MEM_VIDEO:
 710       heaps[0] = viaObj->memType;
 711       heaps[1] = VIA_MEM_SYSTEM;
 712       nheaps = 2;
 713       break;
 714    case VIA_MEM_MIXED:
 715    case VIA_MEM_SYSTEM:
 716    default:
 717       heaps[0] = VIA_MEM_SYSTEM;
 718       nheaps = 1;
 719       break;
 720    }
 721
 722    for (i = 0; i < nheaps && !viaImage->texMem; i++) {
 723       if (VIA_DEBUG & DEBUG_TEXTURE)
 724          fprintf(stderr, "try %s (obj %s)\n", get_memtype_name(heaps[i]),
 725                  get_memtype_name(viaObj->memType));
 726       viaImage->texMem = via_alloc_texture(vmesa, sizeInBytes, heaps[i]);
 727    }
 728
 729    if (!viaImage->texMem) {
 730       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
 731       return;
 732    }
 733
 734    if (VIA_DEBUG & DEBUG_TEXTURE)
 735       fprintf(stderr, "upload %d bytes to %s\n", sizeInBytes,
 736               get_memtype_name(viaImage->texMem->memType));
 737
 738    viaImage->texMem->image = viaImage;
 739    texImage->Data = viaImage->texMem->bufAddr;
 740
 741    if (viaObj->memType == VIA_MEM_UNKNOWN)
 742       viaObj->memType = viaImage->texMem->memType;
 743    else if (viaObj->memType != viaImage->texMem->memType)
 744       viaObj->memType = VIA_MEM_MIXED;
 745
 746    if (VIA_DEBUG & DEBUG_TEXTURE)
 747       fprintf(stderr, "%s, obj %s, image : %s\n",
 748               __FUNCTION__,
 749               get_memtype_name(viaObj->memType),
 750               get_memtype_name(viaImage->texMem->memType));
 751
 752    vmesa->clearTexCache = 1;
 753
 754    pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
 755                                         format, type,
 756                                         pixels, packing, "glTexImage");
 757    if (!pixels) {
 758       /* Note: we check for a NULL image pointer here, _after_ we allocated
 759        * memory for the texture.  That's what the GL spec calls for.
 760        */
 761       return;
 762    }
 763    else {
 764       GLint dstRowStride;
 765       GLboolean success;
 766
 767       if (_mesa_is_format_compressed(texImage->TexFormat)) {
 768          dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
 769       }
 770       else {
 771          dstRowStride = postConvWidth * _mesa_get_format_bytes(texImage->TexFormat);
 772       }
 773       success = _mesa_texstore(ctx, dims,
 774                                texImage->_BaseFormat,
 775                                texImage->TexFormat,
 776                                texImage->Data,
 777                                0, 0, 0,  /* dstX/Y/Zoffset */
 778                                dstRowStride,
 779                                texImage->ImageOffsets,
 780                                width, height, 1,
 781                                format, type, pixels, packing);
 782       if (!success) {
 783          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
 784       }
 785    }
 786
 787    _mesa_unmap_teximage_pbo(ctx, packing);
 788 }
 789
 790 static void viaTexImage2D(struct gl_context *ctx,
 791                           GLenum target, GLint level,
 792                           GLint internalFormat,
 793                           GLint width, GLint height, GLint border,
 794                           GLenum format, GLenum type, const void *pixels,
 795                           const struct gl_pixelstore_attrib *packing,
 796                           struct gl_texture_object *texObj,
 797                           struct gl_texture_image *texImage)
 798 {
 799    viaTexImage( ctx, 2, target, level,
 800                 internalFormat, width, height, border,
 801                 format, type, pixels,
 802                 packing, texObj, texImage );
 803 }
 804
 805 static void viaTexSubImage2D(struct gl_context *ctx,
 806                              GLenum target,
 807                              GLint level,
 808                              GLint xoffset, GLint yoffset,
 809                              GLsizei width, GLsizei height,
 810                              GLenum format, GLenum type,
 811                              const GLvoid *pixels,
 812                              const struct gl_pixelstore_attrib *packing,
 813                              struct gl_texture_object *texObj,
 814                              struct gl_texture_image *texImage)
 815 {
 816    struct via_context *vmesa = VIA_CONTEXT(ctx);
 817
 818    viaWaitIdle(vmesa, GL_TRUE);
 819    vmesa->clearTexCache = 1;
 820
 821    _mesa_store_texsubimage2d(ctx, target, level, xoffset, yoffset, width,
 822                              height, format, type, pixels, packing, texObj,
 823                              texImage);
 824 }
 825
 826 static void viaTexImage1D(struct gl_context *ctx,
 827                           GLenum target, GLint level,
 828                           GLint internalFormat,
 829                           GLint width, GLint border,
 830                           GLenum format, GLenum type, const void *pixels,
 831                           const struct gl_pixelstore_attrib *packing,
 832                           struct gl_texture_object *texObj,
 833                           struct gl_texture_image *texImage)
 834 {
 835    viaTexImage( ctx, 1, target, level,
 836                 internalFormat, width, 1, border,
 837                 format, type, pixels,
 838                 packing, texObj, texImage );
 839 }
 840
 841 static void viaTexSubImage1D(struct gl_context *ctx,
 842                              GLenum target,
 843                              GLint level,
 844                              GLint xoffset,
 845                              GLsizei width,
 846                              GLenum format, GLenum type,
 847                              const GLvoid *pixels,
 848                              const struct gl_pixelstore_attrib *packing,
 849                              struct gl_texture_object *texObj,
 850                              struct gl_texture_image *texImage)
 851 {
 852    struct via_context *vmesa = VIA_CONTEXT(ctx);
 853
 854    viaWaitIdle(vmesa, GL_TRUE);
 855    vmesa->clearTexCache = 1;
 856
 857    _mesa_store_texsubimage1d(ctx, target, level, xoffset, width,
 858                              format, type, pixels, packing, texObj,
 859                              texImage);
 860 }
 861
 862
 863
 864 static GLboolean viaIsTextureResident(struct gl_context *ctx,
 865                                       struct gl_texture_object *texObj)
 866 {
 867    struct via_texture_object *viaObj =
 868       (struct via_texture_object *)texObj;
 869
 870    return (viaObj->memType == VIA_MEM_AGP ||
 871            viaObj->memType == VIA_MEM_VIDEO);
 872 }
 873
 874
 875
 876 static struct gl_texture_image *viaNewTextureImage( struct gl_context *ctx )
 877 {
 878    (void) ctx;
 879    return (struct gl_texture_image *)CALLOC_STRUCT(via_texture_image);
 880 }
 881
 882
 883 static struct gl_texture_object *viaNewTextureObject( struct gl_context *ctx,
 884                                                       GLuint name,
 885                                                       GLenum target )
 886 {
 887    struct via_texture_object *obj = CALLOC_STRUCT(via_texture_object);
 888
 889    _mesa_initialize_texture_object(&obj->obj, name, target);
 890    (void) ctx;
 891
 892    obj->memType = VIA_MEM_UNKNOWN;
 893
 894    return &obj->obj;
 895 }
 896
 897
 898 static void viaFreeTextureImageData( struct gl_context *ctx,
 899                                      struct gl_texture_image *texImage )
 900 {
 901    struct via_context *vmesa = VIA_CONTEXT(ctx);
 902    struct via_texture_image *image = (struct via_texture_image *)texImage;
 903
 904    if (image->texMem) {
 905       via_free_texture(vmesa, image->texMem);
 906       image->texMem = NULL;
 907    }
 908
 909    texImage->Data = NULL;
 910 }
 911
 912
 913
 914
 915 void viaInitTextureFuncs(struct dd_function_table * functions)
 916 {
 917    functions->ChooseTextureFormat = viaChooseTexFormat;
 918    functions->TexImage1D = viaTexImage1D;
 919    functions->TexImage2D = viaTexImage2D;
 920    functions->TexSubImage1D = viaTexSubImage1D;
 921    functions->TexSubImage2D = viaTexSubImage2D;
 922
 923    functions->NewTextureObject = viaNewTextureObject;
 924    functions->NewTextureImage = viaNewTextureImage;
 925    functions->DeleteTexture = _mesa_delete_texture_object;
 926    functions->FreeTexImageData = viaFreeTextureImageData;
 927
 928 #if 0 && defined( USE_SSE_ASM )
 929    /*
 930     * XXX this code is disabled for now because the via_sse_memcpy()
 931     * routine causes segfaults with flightgear.
 932     * See Mesa3d-dev mail list messages from 7/15/2005 for details.
 933     * Note that this function is currently disabled in via_tris.c too.
 934     */
 935    if (getenv("VIA_NO_SSE"))
 936       functions->TextureMemCpy = memcpy;
 937    else
 938       functions->TextureMemCpy = via_sse_memcpy;
 939 #else
 940    functions->TextureMemCpy = memcpy;
 941 #endif
 942
 943    functions->IsTextureResident = viaIsTextureResident;
 944 }
 945
 946