src/gallium/drivers/svga/svga_screen_texture.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "svga_cmd.h"
  27
  28 #include "pipe/p_state.h"
  29 #include "pipe/p_defines.h"
  30 #include "pipe/p_inlines.h"
  31 #include "pipe/p_thread.h"
  32 #include "util/u_math.h"
  33 #include "util/u_memory.h"
  34
  35 #include "svga_screen.h"
  36 #include "svga_context.h"
  37 #include "svga_screen_texture.h"
  38 #include "svga_screen_buffer.h"
  39 #include "svga_winsys.h"
  40 #include "svga_debug.h"
  41 #include "svga_screen_buffer.h"
  42
  43 #include <util/u_string.h>
  44
  45
  46 /* XXX: This isn't a real hardware flag, but just a hack for kernel to
  47  * know about primary surfaces. Find a better way to accomplish this.
  48  */
  49 #define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
  50
  51
  52 /*
  53  * Helper function and arrays
  54  */
  55
  56 SVGA3dSurfaceFormat
  57 svga_translate_format(enum pipe_format format)
  58 {
  59    switch(format) {
  60
  61    case PIPE_FORMAT_A8R8G8B8_UNORM:
  62       return SVGA3D_A8R8G8B8;
  63    case PIPE_FORMAT_X8R8G8B8_UNORM:
  64       return SVGA3D_X8R8G8B8;
  65
  66       /* Required for GL2.1:
  67        */
  68    case PIPE_FORMAT_A8R8G8B8_SRGB:
  69       return SVGA3D_A8R8G8B8;
  70
  71    case PIPE_FORMAT_R5G6B5_UNORM:
  72       return SVGA3D_R5G6B5;
  73    case PIPE_FORMAT_A1R5G5B5_UNORM:
  74       return SVGA3D_A1R5G5B5;
  75    case PIPE_FORMAT_A4R4G4B4_UNORM:
  76       return SVGA3D_A4R4G4B4;
  77
  78
  79    /* XXX: Doesn't seem to work properly.
  80    case PIPE_FORMAT_Z32_UNORM:
  81       return SVGA3D_Z_D32;
  82     */
  83    case PIPE_FORMAT_Z16_UNORM:
  84       return SVGA3D_Z_D16;
  85    case PIPE_FORMAT_Z24S8_UNORM:
  86       return SVGA3D_Z_D24S8;
  87    case PIPE_FORMAT_Z24X8_UNORM:
  88       return SVGA3D_Z_D24X8;
  89
  90    case PIPE_FORMAT_A8_UNORM:
  91       return SVGA3D_ALPHA8;
  92    case PIPE_FORMAT_L8_UNORM:
  93       return SVGA3D_LUMINANCE8;
  94
  95    case PIPE_FORMAT_DXT1_RGB:
  96    case PIPE_FORMAT_DXT1_RGBA:
  97       return SVGA3D_DXT1;
  98    case PIPE_FORMAT_DXT3_RGBA:
  99       return SVGA3D_DXT3;
 100    case PIPE_FORMAT_DXT5_RGBA:
 101       return SVGA3D_DXT5;
 102
 103    default:
 104       return SVGA3D_FORMAT_INVALID;
 105    }
 106 }
 107
 108
 109 SVGA3dSurfaceFormat
 110 svga_translate_format_render(enum pipe_format format)
 111 {
 112    switch(format) {
 113    case PIPE_FORMAT_A8R8G8B8_UNORM:
 114    case PIPE_FORMAT_X8R8G8B8_UNORM:
 115    case PIPE_FORMAT_A1R5G5B5_UNORM:
 116    case PIPE_FORMAT_A4R4G4B4_UNORM:
 117    case PIPE_FORMAT_R5G6B5_UNORM:
 118    case PIPE_FORMAT_Z24S8_UNORM:
 119    case PIPE_FORMAT_Z24X8_UNORM:
 120    case PIPE_FORMAT_Z32_UNORM:
 121    case PIPE_FORMAT_Z16_UNORM:
 122    case PIPE_FORMAT_L8_UNORM:
 123       return svga_translate_format(format);
 124
 125 #if 1
 126    /* For on host conversion */
 127    case PIPE_FORMAT_DXT1_RGB:
 128       return SVGA3D_X8R8G8B8;
 129    case PIPE_FORMAT_DXT1_RGBA:
 130    case PIPE_FORMAT_DXT3_RGBA:
 131    case PIPE_FORMAT_DXT5_RGBA:
 132       return SVGA3D_A8R8G8B8;
 133 #endif
 134
 135    default:
 136       return SVGA3D_FORMAT_INVALID;
 137    }
 138 }
 139
 140
 141 static INLINE void
 142 svga_transfer_dma_band(struct svga_transfer *st,
 143                        SVGA3dTransferType transfer,
 144                        unsigned y, unsigned h, unsigned srcy)
 145 {
 146    struct svga_texture *texture = svga_texture(st->base.texture);
 147    struct svga_screen *screen = svga_screen(texture->base.screen);
 148    SVGA3dCopyBox box;
 149    enum pipe_error ret;
 150
 151    SVGA_DBG(DEBUG_DMA, "dma %s sid %p, face %u, (%u, %u, %u) - (%u, %u, %u), %ubpp\n",
 152                 transfer == SVGA3D_WRITE_HOST_VRAM ? "to" : "from",
 153                 texture->handle,
 154                 st->base.face,
 155                 st->base.x,
 156                 y,
 157                 st->base.zslice,
 158                 st->base.x + st->base.width,
 159                 y + h,
 160                 st->base.zslice + 1,
 161                 texture->base.block.size*8/(texture->base.block.width*texture->base.block.height));
 162
 163    box.x = st->base.x;
 164    box.y = y;
 165    box.z = st->base.zslice;
 166    box.w = st->base.width;
 167    box.h = h;
 168    box.d = 1;
 169    box.srcx = 0;
 170    box.srcy = srcy;
 171    box.srcz = 0;
 172
 173    pipe_mutex_lock(screen->swc_mutex);
 174    ret = SVGA3D_SurfaceDMA(screen->swc, st, transfer, &box, 1);
 175    if(ret != PIPE_OK) {
 176       screen->swc->flush(screen->swc, NULL);
 177       ret = SVGA3D_SurfaceDMA(screen->swc, st, transfer, &box, 1);
 178       assert(ret == PIPE_OK);
 179    }
 180    pipe_mutex_unlock(screen->swc_mutex);
 181 }
 182
 183
 184 static INLINE void
 185 svga_transfer_dma(struct svga_transfer *st,
 186                  SVGA3dTransferType transfer)
 187 {
 188    struct svga_texture *texture = svga_texture(st->base.texture);
 189    struct svga_screen *screen = svga_screen(texture->base.screen);
 190    struct svga_winsys_screen *sws = screen->sws;
 191    struct pipe_fence_handle *fence = NULL;
 192
 193    if (transfer == SVGA3D_READ_HOST_VRAM) {
 194       SVGA_DBG(DEBUG_PERF, "%s: readback transfer\n", __FUNCTION__);
 195    }
 196
 197
 198    if(!st->swbuf) {
 199       /* Do the DMA transfer in a single go */
 200
 201       svga_transfer_dma_band(st, transfer, st->base.y, st->base.height, 0);
 202
 203       if(transfer == SVGA3D_READ_HOST_VRAM) {
 204          svga_screen_flush(screen, &fence);
 205          sws->fence_finish(sws, fence, 0);
 206          //sws->fence_reference(sws, &fence, NULL);
 207       }
 208    }
 209    else {
 210       unsigned y, h, srcy;
 211       h = st->hw_nblocksy * st->base.block.height;
 212       srcy = 0;
 213       for(y = 0; y < st->base.height; y += h) {
 214          unsigned offset, length;
 215          void *hw, *sw;
 216
 217          if (y + h > st->base.height)
 218             h = st->base.height - y;
 219
 220          /* Transfer band must be aligned to pixel block boundaries */
 221          assert(y % st->base.block.height == 0);
 222          assert(h % st->base.block.height == 0);
 223
 224          offset = y * st->base.stride / st->base.block.height;
 225          length = h * st->base.stride / st->base.block.height;
 226
 227          sw = (uint8_t *)st->swbuf + offset;
 228
 229          if(transfer == SVGA3D_WRITE_HOST_VRAM) {
 230             /* Wait for the previous DMAs to complete */
 231             /* TODO: keep one DMA (at half the size) in the background */
 232             if(y) {
 233                svga_screen_flush(screen, &fence);
 234                sws->fence_finish(sws, fence, 0);
 235                //sws->fence_reference(sws, &fence, NULL);
 236             }
 237
 238             hw = sws->buffer_map(sws, st->hwbuf, PIPE_BUFFER_USAGE_CPU_WRITE);
 239             assert(hw);
 240             if(hw) {
 241                memcpy(hw, sw, length);
 242                sws->buffer_unmap(sws, st->hwbuf);
 243             }
 244          }
 245
 246          svga_transfer_dma_band(st, transfer, y, h, srcy);
 247
 248          if(transfer == SVGA3D_READ_HOST_VRAM) {
 249             svga_screen_flush(screen, &fence);
 250             sws->fence_finish(sws, fence, 0);
 251
 252             hw = sws->buffer_map(sws, st->hwbuf, PIPE_BUFFER_USAGE_CPU_READ);
 253             assert(hw);
 254             if(hw) {
 255                memcpy(sw, hw, length);
 256                sws->buffer_unmap(sws, st->hwbuf);
 257             }
 258          }
 259       }
 260    }
 261 }
 262
 263
 264 static struct pipe_texture *
 265 svga_texture_create(struct pipe_screen *screen,
 266                     const struct pipe_texture *templat)
 267 {
 268    struct svga_screen *svgascreen = svga_screen(screen);
 269    struct svga_texture *tex = CALLOC_STRUCT(svga_texture);
 270    unsigned width, height, depth;
 271    unsigned level;
 272
 273    if (!tex)
 274       goto error1;
 275
 276    tex->base = *templat;
 277    pipe_reference_init(&tex->base.reference, 1);
 278    tex->base.screen = screen;
 279
 280    assert(templat->last_level < SVGA_MAX_TEXTURE_LEVELS);
 281    if(templat->last_level >= SVGA_MAX_TEXTURE_LEVELS)
 282       goto error2;
 283
 284    width = templat->width[0];
 285    height = templat->height[0];
 286    depth = templat->depth[0];
 287    for(level = 0; level <= templat->last_level; ++level) {
 288       tex->base.width[level] = width;
 289       tex->base.height[level] = height;
 290       tex->base.depth[level] = depth;
 291       tex->base.nblocksx[level] = pf_get_nblocksx(&tex->base.block, width);
 292       tex->base.nblocksy[level] = pf_get_nblocksy(&tex->base.block, height);
 293       width  = minify(width);
 294       height = minify(height);
 295       depth = minify(depth);
 296    }
 297
 298    tex->key.flags = 0;
 299    tex->key.size.width = templat->width[0];
 300    tex->key.size.height = templat->height[0];
 301    tex->key.size.depth = templat->depth[0];
 302
 303    if(templat->target == PIPE_TEXTURE_CUBE) {
 304       tex->key.flags |= SVGA3D_SURFACE_CUBEMAP;
 305       tex->key.numFaces = 6;
 306    }
 307    else {
 308       tex->key.numFaces = 1;
 309    }
 310
 311    tex->key.cachable = 1;
 312
 313    if(templat->tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 314       tex->key.flags |= SVGA3D_SURFACE_HINT_TEXTURE;
 315
 316    if(templat->tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) {
 317       tex->key.cachable = 0;
 318    }
 319
 320    if(templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY) {
 321       tex->key.flags |= SVGA3D_SURFACE_HINT_SCANOUT;
 322       tex->key.cachable = 0;
 323    }
 324
 325    /*
 326     * XXX: Never pass the SVGA3D_SURFACE_HINT_RENDERTARGET hint. Mesa cannot
 327     * know beforehand whether a texture will be used as a rendertarget or not
 328     * and it always requests PIPE_TEXTURE_USAGE_RENDER_TARGET, therefore
 329     * passing the SVGA3D_SURFACE_HINT_RENDERTARGET here defeats its purpose.
 330     */
 331 #if 0
 332    if((templat->tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) &&
 333       !pf_is_compressed(templat->format))
 334       tex->key.flags |= SVGA3D_SURFACE_HINT_RENDERTARGET;
 335 #endif
 336
 337    if(templat->tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 338       tex->key.flags |= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
 339
 340    tex->key.numMipLevels = templat->last_level + 1;
 341
 342    tex->key.format = svga_translate_format(templat->format);
 343    if(tex->key.format == SVGA3D_FORMAT_INVALID)
 344       goto error2;
 345
 346    SVGA_DBG(DEBUG_DMA, "surface_create for texture\n", tex->handle);
 347    tex->handle = svga_screen_surface_create(svgascreen, &tex->key);
 348    if (tex->handle)
 349       SVGA_DBG(DEBUG_DMA, "  --> got sid %p (texture)\n", tex->handle);
 350
 351    return &tex->base;
 352
 353 error2:
 354    FREE(tex);
 355 error1:
 356    return NULL;
 357 }
 358
 359
 360 static struct pipe_texture *
 361 svga_texture_blanket(struct pipe_screen * screen,
 362                      const struct pipe_texture *base,
 363                      const unsigned *stride,
 364                      struct pipe_buffer *buffer)
 365 {
 366    struct svga_texture *tex;
 367    struct svga_buffer *sbuf = svga_buffer(buffer);
 368    struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 369    assert(screen);
 370
 371    /* Only supports one type */
 372    if (base->target != PIPE_TEXTURE_2D ||
 373        base->last_level != 0 ||
 374        base->depth[0] != 1) {
 375       return NULL;
 376    }
 377
 378    /**
 379     * We currently can't do texture blanket on
 380     * SVGA3D_BUFFER. Need to blit to a temporary surface?
 381     */
 382
 383    assert(sbuf->handle);
 384    if (!sbuf->handle)
 385       return NULL;
 386
 387    if (svga_translate_format(base->format) != sbuf->key.format) {
 388       unsigned f1 = svga_translate_format(base->format);
 389       unsigned f2 = sbuf->key.format;
 390
 391       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 392       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 393               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 394               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 395          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 396          return NULL;
 397       }
 398    }
 399
 400    tex = CALLOC_STRUCT(svga_texture);
 401    if (!tex)
 402       return NULL;
 403
 404    tex->base = *base;
 405
 406
 407    if (sbuf->key.format == 1)
 408       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 409    else if (sbuf->key.format == 2)
 410       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 411
 412    pipe_reference_init(&tex->base.reference, 1);
 413    tex->base.screen = screen;
 414
 415    SVGA_DBG(DEBUG_DMA, "blanket sid %p\n", sbuf->handle);
 416
 417    /* We don't own this storage, so don't try to cache it.
 418     */
 419    assert(sbuf->key.cachable == 0);
 420    tex->key.cachable = 0;
 421    sws->surface_reference(sws, &tex->handle, sbuf->handle);
 422
 423    return &tex->base;
 424 }
 425
 426
 427 struct pipe_texture *
 428 svga_screen_texture_wrap_surface(struct pipe_screen *screen,
 429                                  struct pipe_texture *base,
 430                                  enum SVGA3dSurfaceFormat format,
 431                                  struct svga_winsys_surface *srf)
 432 {
 433    struct svga_texture *tex;
 434    assert(screen);
 435
 436    /* Only supports one type */
 437    if (base->target != PIPE_TEXTURE_2D ||
 438        base->last_level != 0 ||
 439        base->depth[0] != 1) {
 440       return NULL;
 441    }
 442
 443    if (!srf)
 444       return NULL;
 445
 446    if (svga_translate_format(base->format) != format) {
 447       unsigned f1 = svga_translate_format(base->format);
 448       unsigned f2 = format;
 449
 450       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 451       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 452               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 453               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 454          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 455          return NULL;
 456       }
 457    }
 458
 459    tex = CALLOC_STRUCT(svga_texture);
 460    if (!tex)
 461       return NULL;
 462
 463    tex->base = *base;
 464
 465
 466    if (format == 1)
 467       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 468    else if (format == 2)
 469       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 470
 471    pipe_reference_init(&tex->base.reference, 1);
 472    tex->base.screen = screen;
 473
 474    SVGA_DBG(DEBUG_DMA, "wrap surface sid %p\n", srf);
 475
 476    tex->key.cachable = 0;
 477    tex->handle = srf;
 478
 479    return &tex->base;
 480 }
 481
 482
 483 static void
 484 svga_texture_destroy(struct pipe_texture *pt)
 485 {
 486    struct svga_screen *ss = svga_screen(pt->screen);
 487    struct svga_texture *tex = (struct svga_texture *)pt;
 488
 489    ss->texture_timestamp++;
 490
 491    svga_sampler_view_reference(&tex->cached_view, NULL);
 492
 493    /*
 494      DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
 495    */
 496    SVGA_DBG(DEBUG_DMA, "unref sid %p (texture)\n", tex->handle);
 497    svga_screen_surface_destroy(ss, &tex->key, &tex->handle);
 498
 499    FREE(tex);
 500 }
 501
 502
 503 static void
 504 svga_texture_copy_handle(struct svga_context *svga,
 505                          struct svga_screen *ss,
 506                          struct svga_winsys_surface *src_handle,
 507                          unsigned src_x, unsigned src_y, unsigned src_z,
 508                          unsigned src_level, unsigned src_face,
 509                          struct svga_winsys_surface *dst_handle,
 510                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
 511                          unsigned dst_level, unsigned dst_face,
 512                          unsigned width, unsigned height, unsigned depth)
 513 {
 514    struct svga_surface dst, src;
 515    enum pipe_error ret;
 516    SVGA3dCopyBox box, *boxes;
 517
 518    assert(svga || ss);
 519
 520    src.handle = src_handle;
 521    src.real_level = src_level;
 522    src.real_face = src_face;
 523    src.real_zslice = 0;
 524
 525    dst.handle = dst_handle;
 526    dst.real_level = dst_level;
 527    dst.real_face = dst_face;
 528    dst.real_zslice = 0;
 529
 530    box.x = dst_x;
 531    box.y = dst_y;
 532    box.z = dst_z;
 533    box.w = width;
 534    box.h = height;
 535    box.d = depth;
 536    box.srcx = src_x;
 537    box.srcy = src_y;
 538    box.srcz = src_z;
 539
 540 /*
 541    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
 542             src_handle, src_level, src_x, src_y, src_z,
 543             dst_handle, dst_level, dst_x, dst_y, dst_z);
 544 */
 545
 546    if (svga) {
 547       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 548                                     &src.base,
 549                                     &dst.base,
 550                                     &boxes, 1);
 551       if(ret != PIPE_OK) {
 552          svga_context_flush(svga, NULL);
 553          ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 554                                        &src.base,
 555                                        &dst.base,
 556                                        &boxes, 1);
 557          assert(ret == PIPE_OK);
 558       }
 559       *boxes = box;
 560       SVGA_FIFOCommitAll(svga->swc);
 561    } else {
 562       pipe_mutex_lock(ss->swc_mutex);
 563       ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 564                                     &src.base,
 565                                     &dst.base,
 566                                     &boxes, 1);
 567       if(ret != PIPE_OK) {
 568          ss->swc->flush(ss->swc, NULL);
 569          ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 570                                        &src.base,
 571                                        &dst.base,
 572                                        &boxes, 1);
 573          assert(ret == PIPE_OK);
 574       }
 575       *boxes = box;
 576       SVGA_FIFOCommitAll(ss->swc);
 577       pipe_mutex_unlock(ss->swc_mutex);
 578    }
 579 }
 580
 581 static struct svga_winsys_surface *
 582 svga_texture_view_surface(struct pipe_context *pipe,
 583                           struct svga_texture *tex,
 584                           SVGA3dSurfaceFormat format,
 585                           unsigned start_mip,
 586                           unsigned num_mip,
 587                           int face_pick,
 588                           int zslice_pick,
 589                           struct svga_host_surface_cache_key *key) /* OUT */
 590 {
 591    struct svga_screen *ss = svga_screen(tex->base.screen);
 592    struct svga_winsys_surface *handle;
 593    uint32_t i, j;
 594    unsigned z_offset = 0;
 595
 596    SVGA_DBG(DEBUG_PERF,
 597             "svga: Create surface view: face %d zslice %d mips %d..%d\n",
 598             face_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 599
 600    key->flags = 0;
 601    key->format = format;
 602    key->numMipLevels = num_mip;
 603    key->size.width = tex->base.width[start_mip];
 604    key->size.height = tex->base.height[start_mip];
 605    key->size.depth = zslice_pick < 0 ? tex->base.depth[start_mip] : 1;
 606    key->cachable = 1;
 607    assert(key->size.depth == 1);
 608
 609    if(tex->base.target == PIPE_TEXTURE_CUBE && face_pick < 0) {
 610       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 611       key->numFaces = 6;
 612    } else {
 613       key->numFaces = 1;
 614    }
 615
 616    if(key->format == SVGA3D_FORMAT_INVALID) {
 617       key->cachable = 0;
 618       return NULL;
 619    }
 620
 621    SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 622    handle = svga_screen_surface_create(ss, key);
 623    if (!handle) {
 624       key->cachable = 0;
 625       return NULL;
 626    }
 627
 628    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 629
 630    if (face_pick < 0)
 631       face_pick = 0;
 632
 633    if (zslice_pick >= 0)
 634        z_offset = zslice_pick;
 635
 636    for (i = 0; i < key->numMipLevels; i++) {
 637       for (j = 0; j < key->numFaces; j++) {
 638          if(tex->defined[j + face_pick][i + start_mip]) {
 639             unsigned depth = zslice_pick < 0 ? tex->base.depth[i + start_mip] : 1;
 640             svga_texture_copy_handle(svga_context(pipe),
 641                                      ss,
 642                                      tex->handle,
 643                                      0, 0, z_offset,
 644                                      i + start_mip,
 645                                      j + face_pick,
 646                                      handle, 0, 0, 0, i, j,
 647                                      tex->base.width[i + start_mip],
 648                                      tex->base.height[i + start_mip],
 649                                      depth);
 650          }
 651       }
 652    }
 653
 654    return handle;
 655 }
 656
 657
 658 static struct pipe_surface *
 659 svga_get_tex_surface(struct pipe_screen *screen,
 660                      struct pipe_texture *pt,
 661                      unsigned face, unsigned level, unsigned zslice,
 662                      unsigned flags)
 663 {
 664    struct svga_texture *tex = svga_texture(pt);
 665    struct svga_surface *s;
 666    boolean render = flags & PIPE_BUFFER_USAGE_GPU_WRITE ? TRUE : FALSE;
 667    boolean view = FALSE;
 668    SVGA3dSurfaceFormat format;
 669
 670    s = CALLOC_STRUCT(svga_surface);
 671    if (!s)
 672       return NULL;
 673
 674    pipe_reference_init(&s->base.reference, 1);
 675    pipe_texture_reference(&s->base.texture, pt);
 676    s->base.format = pt->format;
 677    s->base.width = pt->width[level];
 678    s->base.height = pt->height[level];
 679    s->base.usage = flags;
 680    s->base.level = level;
 681    s->base.face = face;
 682    s->base.zslice = zslice;
 683
 684    if (!render)
 685       format = svga_translate_format(pt->format);
 686    else
 687       format = svga_translate_format_render(pt->format);
 688
 689    assert(format != SVGA3D_FORMAT_INVALID);
 690    assert(!(flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE));
 691
 692
 693    if (svga_screen(screen)->debug.force_surface_view)
 694       view = TRUE;
 695
 696    /* Currently only used for compressed textures */
 697    if (render &&
 698        format != svga_translate_format(pt->format)) {
 699       view = TRUE;
 700    }
 701
 702    if (level != 0 &&
 703        svga_screen(screen)->debug.force_level_surface_view)
 704       view = TRUE;
 705
 706    if (pt->target == PIPE_TEXTURE_3D)
 707       view = TRUE;
 708
 709    if (svga_screen(screen)->debug.no_surface_view)
 710       view = FALSE;
 711
 712    if (view) {
 713       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: yes %p, level %u face %u z %u, %p\n",
 714                pt, level, face, zslice, s);
 715
 716       s->handle = svga_texture_view_surface(NULL, tex, format, level, 1, face, zslice,
 717                                             &s->key);
 718       s->real_face = 0;
 719       s->real_level = 0;
 720       s->real_zslice = 0;
 721    } else {
 722       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: no %p, level %u, face %u, z %u, %p\n",
 723                pt, level, face, zslice, s);
 724
 725       memset(&s->key, 0, sizeof s->key);
 726       s->handle = tex->handle;
 727       s->real_face = face;
 728       s->real_level = level;
 729       s->real_zslice = zslice;
 730    }
 731
 732    return &s->base;
 733 }
 734
 735
 736 static void
 737 svga_tex_surface_destroy(struct pipe_surface *surf)
 738 {
 739    struct svga_surface *s = svga_surface(surf);
 740    struct svga_texture *t = svga_texture(surf->texture);
 741    struct svga_screen *ss = svga_screen(surf->texture->screen);
 742
 743    if(s->handle != t->handle) {
 744       SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 745       svga_screen_surface_destroy(ss, &s->key, &s->handle);
 746    }
 747
 748    pipe_texture_reference(&surf->texture, NULL);
 749    FREE(surf);
 750 }
 751
 752
 753 static INLINE void
 754 svga_mark_surface_dirty(struct pipe_surface *surf)
 755 {
 756    struct svga_surface *s = svga_surface(surf);
 757
 758    if(!s->dirty) {
 759       struct svga_texture *tex = svga_texture(surf->texture);
 760
 761       s->dirty = TRUE;
 762
 763       if (s->handle == tex->handle)
 764          tex->defined[surf->face][surf->level] = TRUE;
 765       else {
 766          /* this will happen later in svga_propagate_surface */
 767       }
 768    }
 769 }
 770
 771
 772 void svga_mark_surfaces_dirty(struct svga_context *svga)
 773 {
 774    unsigned i;
 775
 776    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 777       if (svga->curr.framebuffer.cbufs[i])
 778          svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 779    }
 780    if (svga->curr.framebuffer.zsbuf)
 781       svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 782 }
 783
 784 /**
 785  * Progagate any changes from surfaces to texture.
 786  * pipe is optional context to inline the blit command in.
 787  */
 788 void
 789 svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf)
 790 {
 791    struct svga_surface *s = svga_surface(surf);
 792    struct svga_texture *tex = svga_texture(surf->texture);
 793    struct svga_screen *ss = svga_screen(surf->texture->screen);
 794
 795    if (!s->dirty)
 796       return;
 797
 798    s->dirty = FALSE;
 799    ss->texture_timestamp++;
 800    tex->view_age[surf->level] = ++(tex->age);
 801
 802    if (s->handle != tex->handle) {
 803       SVGA_DBG(DEBUG_VIEWS, "svga: Surface propagate: tex %p, level %u, from %p\n", tex, surf->level, surf);
 804       svga_texture_copy_handle(svga_context(pipe), ss,
 805                                s->handle, 0, 0, 0, s->real_level, s->real_face,
 806                                tex->handle, 0, 0, surf->zslice, surf->level, surf->face,
 807                                tex->base.width[surf->level], tex->base.height[surf->level], 1);
 808       tex->defined[surf->face][surf->level] = TRUE;
 809    }
 810 }
 811
 812 /**
 813  * Check if we should call svga_propagate_surface on the surface.
 814  */
 815 extern boolean
 816 svga_surface_needs_propagation(struct pipe_surface *surf)
 817 {
 818    struct svga_surface *s = svga_surface(surf);
 819    struct svga_texture *tex = svga_texture(surf->texture);
 820
 821    return s->dirty && s->handle != tex->handle;
 822 }
 823
 824
 825 static struct pipe_transfer *
 826 svga_get_tex_transfer(struct pipe_screen *screen,
 827                      struct pipe_texture *texture,
 828                      unsigned face, unsigned level, unsigned zslice,
 829                      enum pipe_transfer_usage usage, unsigned x, unsigned y,
 830                      unsigned w, unsigned h)
 831 {
 832    struct svga_screen *ss = svga_screen(screen);
 833    struct svga_winsys_screen *sws = ss->sws;
 834    struct svga_transfer *st;
 835
 836    /* We can't map texture storage directly */
 837    if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 838       return NULL;
 839
 840    st = CALLOC_STRUCT(svga_transfer);
 841    if (!st)
 842       return NULL;
 843
 844    st->base.format = texture->format;
 845    st->base.block = texture->block;
 846    st->base.x = x;
 847    st->base.y = y;
 848    st->base.width = w;
 849    st->base.height = h;
 850    st->base.nblocksx = pf_get_nblocksx(&texture->block, w);
 851    st->base.nblocksy = pf_get_nblocksy(&texture->block, h);
 852    st->base.stride = st->base.nblocksx*st->base.block.size;
 853    st->base.usage = usage;
 854    st->base.face = face;
 855    st->base.level = level;
 856    st->base.zslice = zslice;
 857
 858    st->hw_nblocksy = st->base.nblocksy;
 859
 860    st->hwbuf = svga_winsys_buffer_create(ss,
 861                                          1,
 862                                          0,
 863                                          st->hw_nblocksy*st->base.stride);
 864    while(!st->hwbuf && (st->hw_nblocksy /= 2)) {
 865       st->hwbuf = svga_winsys_buffer_create(ss,
 866                                             1,
 867                                             0,
 868                                             st->hw_nblocksy*st->base.stride);
 869    }
 870
 871    if(!st->hwbuf)
 872       goto no_hwbuf;
 873
 874    if(st->hw_nblocksy < st->base.nblocksy) {
 875       /* We couldn't allocate a hardware buffer big enough for the transfer,
 876        * so allocate regular malloc memory instead */
 877       debug_printf("%s: failed to allocate %u KB of DMA, splitting into %u x %u KB DMA transfers\n",
 878                    __FUNCTION__,
 879                    (st->base.nblocksy*st->base.stride + 1023)/1024,
 880                    (st->base.nblocksy + st->hw_nblocksy - 1)/st->hw_nblocksy,
 881                    (st->hw_nblocksy*st->base.stride + 1023)/1024);
 882       st->swbuf = MALLOC(st->base.nblocksy*st->base.stride);
 883       if(!st->swbuf)
 884          goto no_swbuf;
 885    }
 886
 887    pipe_texture_reference(&st->base.texture, texture);
 888
 889    if (usage & PIPE_TRANSFER_READ)
 890       svga_transfer_dma(st, SVGA3D_READ_HOST_VRAM);
 891
 892    return &st->base;
 893
 894 no_swbuf:
 895    sws->buffer_destroy(sws, st->hwbuf);
 896 no_hwbuf:
 897    FREE(st);
 898    return NULL;
 899 }
 900
 901
 902 static void *
 903 svga_transfer_map( struct pipe_screen *screen,
 904                    struct pipe_transfer *transfer )
 905 {
 906    struct svga_screen *ss = svga_screen(screen);
 907    struct svga_winsys_screen *sws = ss->sws;
 908    struct svga_transfer *st = svga_transfer(transfer);
 909
 910    if(st->swbuf)
 911       return st->swbuf;
 912    else
 913       /* The wait for read transfers already happened when svga_transfer_dma
 914        * was called. */
 915       return sws->buffer_map(sws, st->hwbuf,
 916                              pipe_transfer_buffer_flags(transfer));
 917 }
 918
 919
 920 static void
 921 svga_transfer_unmap(struct pipe_screen *screen,
 922                     struct pipe_transfer *transfer)
 923 {
 924    struct svga_screen *ss = svga_screen(screen);
 925    struct svga_winsys_screen *sws = ss->sws;
 926    struct svga_transfer *st = svga_transfer(transfer);
 927
 928    if(!st->swbuf)
 929       sws->buffer_unmap(sws, st->hwbuf);
 930 }
 931
 932
 933 static void
 934 svga_tex_transfer_destroy(struct pipe_transfer *transfer)
 935 {
 936    struct svga_texture *tex = svga_texture(transfer->texture);
 937    struct svga_screen *ss = svga_screen(transfer->texture->screen);
 938    struct svga_winsys_screen *sws = ss->sws;
 939    struct svga_transfer *st = svga_transfer(transfer);
 940
 941    if (st->base.usage & PIPE_TRANSFER_WRITE) {
 942       svga_transfer_dma(st, SVGA3D_WRITE_HOST_VRAM);
 943       ss->texture_timestamp++;
 944       tex->view_age[transfer->level] = ++(tex->age);
 945       tex->defined[transfer->face][transfer->level] = TRUE;
 946    }
 947
 948    pipe_texture_reference(&st->base.texture, NULL);
 949    FREE(st->swbuf);
 950    sws->buffer_destroy(sws, st->hwbuf);
 951    FREE(st);
 952 }
 953
 954 void
 955 svga_screen_init_texture_functions(struct pipe_screen *screen)
 956 {
 957    screen->texture_create = svga_texture_create;
 958    screen->texture_destroy = svga_texture_destroy;
 959    screen->get_tex_surface = svga_get_tex_surface;
 960    screen->tex_surface_destroy = svga_tex_surface_destroy;
 961    screen->texture_blanket = svga_texture_blanket;
 962    screen->get_tex_transfer = svga_get_tex_transfer;
 963    screen->transfer_map = svga_transfer_map;
 964    screen->transfer_unmap = svga_transfer_unmap;
 965    screen->tex_transfer_destroy = svga_tex_transfer_destroy;
 966 }
 967
 968 /***********************************************************************
 969  */
 970
 971 struct svga_sampler_view *
 972 svga_get_tex_sampler_view(struct pipe_context *pipe, struct pipe_texture *pt,
 973                           unsigned min_lod, unsigned max_lod)
 974 {
 975    struct svga_screen *ss = svga_screen(pt->screen);
 976    struct svga_texture *tex = svga_texture(pt);
 977    struct svga_sampler_view *sv = NULL;
 978    SVGA3dSurfaceFormat format = svga_translate_format(pt->format);
 979    boolean view = TRUE;
 980
 981    assert(pt);
 982    assert(min_lod >= 0);
 983    assert(min_lod <= max_lod);
 984    assert(max_lod <= pt->last_level);
 985
 986
 987    /* Is a view needed */
 988    {
 989       /*
 990        * Can't control max lod. For first level views and when we only
 991        * look at one level we disable mip filtering to achive the same
 992        * results as a view.
 993        */
 994       if (min_lod == 0 && max_lod >= pt->last_level)
 995          view = FALSE;
 996
 997       if (pf_is_compressed(pt->format) && view) {
 998          format = svga_translate_format_render(pt->format);
 999       }
1000
1001       if (ss->debug.no_sampler_view)
1002          view = FALSE;
1003
1004       if (ss->debug.force_sampler_view)
1005          view = TRUE;
1006    }
1007
1008    /* First try the cache */
1009    if (view) {
1010       pipe_mutex_lock(ss->tex_mutex);
1011       if (tex->cached_view &&
1012           tex->cached_view->min_lod == min_lod &&
1013           tex->cached_view->max_lod == max_lod) {
1014          svga_sampler_view_reference(&sv, tex->cached_view);
1015          pipe_mutex_unlock(ss->tex_mutex);
1016          SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: reuse %p, %u %u, last %u\n",
1017                               pt, min_lod, max_lod, pt->last_level);
1018          svga_validate_sampler_view(svga_context(pipe), sv);
1019          return sv;
1020       }
1021       pipe_mutex_unlock(ss->tex_mutex);
1022    }
1023
1024    sv = CALLOC_STRUCT(svga_sampler_view);
1025    pipe_reference_init(&sv->reference, 1);
1026    pipe_texture_reference(&sv->texture, pt);
1027    sv->min_lod = min_lod;
1028    sv->max_lod = max_lod;
1029
1030    /* No view needed just use the whole texture */
1031    if (!view) {
1032       SVGA_DBG(DEBUG_VIEWS,
1033                "svga: Sampler view: no %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
1034                pt, min_lod, max_lod,
1035                max_lod - min_lod + 1,
1036                pt->width[0],
1037                pt->height[0],
1038                pt->depth[0],
1039                pt->last_level);
1040       sv->key.cachable = 0;
1041       sv->handle = tex->handle;
1042       return sv;
1043    }
1044
1045    SVGA_DBG(DEBUG_VIEWS,
1046             "svga: Sampler view: yes %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
1047             pt, min_lod, max_lod,
1048             max_lod - min_lod + 1,
1049             pt->width[0],
1050             pt->height[0],
1051             pt->depth[0],
1052             pt->last_level);
1053
1054    sv->age = tex->age;
1055    sv->handle = svga_texture_view_surface(pipe, tex, format,
1056                                           min_lod,
1057                                           max_lod - min_lod + 1,
1058                                           -1, -1,
1059                                           &sv->key);
1060
1061    if (!sv->handle) {
1062       assert(0);
1063       sv->key.cachable = 0;
1064       sv->handle = tex->handle;
1065       return sv;
1066    }
1067
1068    pipe_mutex_lock(ss->tex_mutex);
1069    svga_sampler_view_reference(&tex->cached_view, sv);
1070    pipe_mutex_unlock(ss->tex_mutex);
1071
1072    return sv;
1073 }
1074
1075 void
1076 svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v)
1077 {
1078    struct svga_texture *tex = svga_texture(v->texture);
1079    unsigned numFaces;
1080    unsigned age = 0;
1081    int i, k;
1082
1083    assert(svga);
1084
1085    if (v->handle == tex->handle)
1086       return;
1087
1088    age = tex->age;
1089
1090    if(tex->base.target == PIPE_TEXTURE_CUBE)
1091       numFaces = 6;
1092    else
1093       numFaces = 1;
1094
1095    for (i = v->min_lod; i <= v->max_lod; i++) {
1096       for (k = 0; k < numFaces; k++) {
1097          if (v->age < tex->view_age[i])
1098             svga_texture_copy_handle(svga, NULL,
1099                                      tex->handle, 0, 0, 0, i, k,
1100                                      v->handle, 0, 0, 0, i - v->min_lod, k,
1101                                      tex->base.width[i],
1102                                      tex->base.height[i],
1103                                      tex->base.depth[i]);
1104       }
1105    }
1106
1107    v->age = age;
1108 }
1109
1110 void
1111 svga_destroy_sampler_view_priv(struct svga_sampler_view *v)
1112 {
1113    struct svga_texture *tex = svga_texture(v->texture);
1114
1115    if(v->handle != tex->handle) {
1116       struct svga_screen *ss = svga_screen(v->texture->screen);
1117       SVGA_DBG(DEBUG_DMA, "unref sid %p (sampler view)\n", v->handle);
1118       svga_screen_surface_destroy(ss, &v->key, &v->handle);
1119    }
1120    pipe_texture_reference(&v->texture, NULL);
1121    FREE(v);
1122 }
1123
1124 boolean
1125 svga_screen_buffer_from_texture(struct pipe_texture *texture,
1126                                 struct pipe_buffer **buffer,
1127                                 unsigned *stride)
1128 {
1129    struct svga_texture *stex = svga_texture(texture);
1130
1131    *buffer = svga_screen_buffer_wrap_surface
1132       (texture->screen,
1133        svga_translate_format(texture->format),
1134        stex->handle);
1135
1136    *stride = pf_get_nblocksx(&texture->block, texture->width[0]) *
1137       texture->block.size;
1138
1139    return *buffer != NULL;
1140 }
1141
1142
1143 struct svga_winsys_surface *
1144 svga_screen_texture_get_winsys_surface(struct pipe_texture *texture)
1145 {
1146    struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
1147    struct svga_winsys_surface *vsurf = NULL;
1148
1149    assert(svga_texture(texture)->key.cachable == 0);
1150    svga_texture(texture)->key.cachable = 0;
1151    sws->surface_reference(sws, &vsurf, svga_texture(texture)->handle);
1152    return vsurf;
1153 }