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_format.h"
  33 #include "util/u_math.h"
  34 #include "util/u_memory.h"
  35
  36 #include "svga_screen.h"
  37 #include "svga_context.h"
  38 #include "svga_screen_texture.h"
  39 #include "svga_screen_buffer.h"
  40 #include "svga_winsys.h"
  41 #include "svga_debug.h"
  42 #include "svga_screen_buffer.h"
  43
  44 #include <util/u_string.h>
  45
  46
  47 /* XXX: This isn't a real hardware flag, but just a hack for kernel to
  48  * know about primary surfaces. Find a better way to accomplish this.
  49  */
  50 #define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
  51
  52
  53 /*
  54  * Helper function and arrays
  55  */
  56
  57 SVGA3dSurfaceFormat
  58 svga_translate_format(enum pipe_format format)
  59 {
  60    switch(format) {
  61
  62    case PIPE_FORMAT_A8R8G8B8_UNORM:
  63       return SVGA3D_A8R8G8B8;
  64    case PIPE_FORMAT_X8R8G8B8_UNORM:
  65       return SVGA3D_X8R8G8B8;
  66
  67       /* Required for GL2.1:
  68        */
  69    case PIPE_FORMAT_A8R8G8B8_SRGB:
  70       return SVGA3D_A8R8G8B8;
  71
  72    case PIPE_FORMAT_R5G6B5_UNORM:
  73       return SVGA3D_R5G6B5;
  74    case PIPE_FORMAT_A1R5G5B5_UNORM:
  75       return SVGA3D_A1R5G5B5;
  76    case PIPE_FORMAT_A4R4G4B4_UNORM:
  77       return SVGA3D_A4R4G4B4;
  78
  79
  80    /* XXX: Doesn't seem to work properly.
  81    case PIPE_FORMAT_Z32_UNORM:
  82       return SVGA3D_Z_D32;
  83     */
  84    case PIPE_FORMAT_Z16_UNORM:
  85       return SVGA3D_Z_D16;
  86    case PIPE_FORMAT_Z24S8_UNORM:
  87       return SVGA3D_Z_D24S8;
  88    case PIPE_FORMAT_Z24X8_UNORM:
  89       return SVGA3D_Z_D24X8;
  90
  91    case PIPE_FORMAT_A8_UNORM:
  92       return SVGA3D_ALPHA8;
  93    case PIPE_FORMAT_L8_UNORM:
  94       return SVGA3D_LUMINANCE8;
  95
  96    case PIPE_FORMAT_DXT1_RGB:
  97    case PIPE_FORMAT_DXT1_RGBA:
  98       return SVGA3D_DXT1;
  99    case PIPE_FORMAT_DXT3_RGBA:
 100       return SVGA3D_DXT3;
 101    case PIPE_FORMAT_DXT5_RGBA:
 102       return SVGA3D_DXT5;
 103
 104    default:
 105       return SVGA3D_FORMAT_INVALID;
 106    }
 107 }
 108
 109
 110 SVGA3dSurfaceFormat
 111 svga_translate_format_render(enum pipe_format format)
 112 {
 113    switch(format) {
 114    case PIPE_FORMAT_A8R8G8B8_UNORM:
 115    case PIPE_FORMAT_X8R8G8B8_UNORM:
 116    case PIPE_FORMAT_A1R5G5B5_UNORM:
 117    case PIPE_FORMAT_A4R4G4B4_UNORM:
 118    case PIPE_FORMAT_R5G6B5_UNORM:
 119    case PIPE_FORMAT_Z24S8_UNORM:
 120    case PIPE_FORMAT_Z24X8_UNORM:
 121    case PIPE_FORMAT_Z32_UNORM:
 122    case PIPE_FORMAT_Z16_UNORM:
 123    case PIPE_FORMAT_L8_UNORM:
 124       return svga_translate_format(format);
 125
 126 #if 1
 127    /* For on host conversion */
 128    case PIPE_FORMAT_DXT1_RGB:
 129       return SVGA3D_X8R8G8B8;
 130    case PIPE_FORMAT_DXT1_RGBA:
 131    case PIPE_FORMAT_DXT3_RGBA:
 132    case PIPE_FORMAT_DXT5_RGBA:
 133       return SVGA3D_A8R8G8B8;
 134 #endif
 135
 136    default:
 137       return SVGA3D_FORMAT_INVALID;
 138    }
 139 }
 140
 141
 142 static INLINE void
 143 svga_transfer_dma_band(struct svga_transfer *st,
 144                        SVGA3dTransferType transfer,
 145                        unsigned y, unsigned h, unsigned srcy)
 146 {
 147    struct svga_texture *texture = svga_texture(st->base.texture);
 148    struct svga_screen *screen = svga_screen(texture->base.screen);
 149    SVGA3dCopyBox box;
 150    enum pipe_error ret;
 151
 152    SVGA_DBG(DEBUG_DMA, "dma %s sid %p, face %u, (%u, %u, %u) - (%u, %u, %u), %ubpp\n",
 153                 transfer == SVGA3D_WRITE_HOST_VRAM ? "to" : "from",
 154                 texture->handle,
 155                 st->base.face,
 156                 st->base.x,
 157                 y,
 158                 st->base.zslice,
 159                 st->base.x + st->base.width,
 160                 y + h,
 161                 st->base.zslice + 1,
 162                 util_format_get_blocksize(texture->base.format)*8/
 163                 (util_format_get_blockwidth(texture->base.format)*util_format_get_blockheight(texture->base.format)));
 164
 165    box.x = st->base.x;
 166    box.y = y;
 167    box.z = st->base.zslice;
 168    box.w = st->base.width;
 169    box.h = h;
 170    box.d = 1;
 171    box.srcx = 0;
 172    box.srcy = srcy;
 173    box.srcz = 0;
 174
 175    pipe_mutex_lock(screen->swc_mutex);
 176    ret = SVGA3D_SurfaceDMA(screen->swc, st, transfer, &box, 1);
 177    if(ret != PIPE_OK) {
 178       screen->swc->flush(screen->swc, NULL);
 179       ret = SVGA3D_SurfaceDMA(screen->swc, st, transfer, &box, 1);
 180       assert(ret == PIPE_OK);
 181    }
 182    pipe_mutex_unlock(screen->swc_mutex);
 183 }
 184
 185
 186 static INLINE void
 187 svga_transfer_dma(struct svga_transfer *st,
 188                  SVGA3dTransferType transfer)
 189 {
 190    struct svga_texture *texture = svga_texture(st->base.texture);
 191    struct svga_screen *screen = svga_screen(texture->base.screen);
 192    struct svga_winsys_screen *sws = screen->sws;
 193    struct pipe_fence_handle *fence = NULL;
 194
 195    if (transfer == SVGA3D_READ_HOST_VRAM) {
 196       SVGA_DBG(DEBUG_PERF, "%s: readback transfer\n", __FUNCTION__);
 197    }
 198
 199
 200    if(!st->swbuf) {
 201       /* Do the DMA transfer in a single go */
 202
 203       svga_transfer_dma_band(st, transfer, st->base.y, st->base.height, 0);
 204
 205       if(transfer == SVGA3D_READ_HOST_VRAM) {
 206          svga_screen_flush(screen, &fence);
 207          sws->fence_finish(sws, fence, 0);
 208          //sws->fence_reference(sws, &fence, NULL);
 209       }
 210    }
 211    else {
 212       unsigned y, h, srcy;
 213       unsigned blockheight = util_format_get_blockheight(st->base.texture->format);
 214       h = st->hw_nblocksy * blockheight;
 215       srcy = 0;
 216       for(y = 0; y < st->base.height; y += h) {
 217          unsigned offset, length;
 218          void *hw, *sw;
 219
 220          if (y + h > st->base.height)
 221             h = st->base.height - y;
 222
 223          /* Transfer band must be aligned to pixel block boundaries */
 224          assert(y % blockheight == 0);
 225          assert(h % blockheight == 0);
 226
 227          offset = y * st->base.stride / blockheight;
 228          length = h * st->base.stride / blockheight;
 229
 230          sw = (uint8_t *)st->swbuf + offset;
 231
 232          if(transfer == SVGA3D_WRITE_HOST_VRAM) {
 233             /* Wait for the previous DMAs to complete */
 234             /* TODO: keep one DMA (at half the size) in the background */
 235             if(y) {
 236                svga_screen_flush(screen, &fence);
 237                sws->fence_finish(sws, fence, 0);
 238                //sws->fence_reference(sws, &fence, NULL);
 239             }
 240
 241             hw = sws->buffer_map(sws, st->hwbuf, PIPE_BUFFER_USAGE_CPU_WRITE);
 242             assert(hw);
 243             if(hw) {
 244                memcpy(hw, sw, length);
 245                sws->buffer_unmap(sws, st->hwbuf);
 246             }
 247          }
 248
 249          svga_transfer_dma_band(st, transfer, y, h, srcy);
 250
 251          if(transfer == SVGA3D_READ_HOST_VRAM) {
 252             svga_screen_flush(screen, &fence);
 253             sws->fence_finish(sws, fence, 0);
 254
 255             hw = sws->buffer_map(sws, st->hwbuf, PIPE_BUFFER_USAGE_CPU_READ);
 256             assert(hw);
 257             if(hw) {
 258                memcpy(sw, hw, length);
 259                sws->buffer_unmap(sws, st->hwbuf);
 260             }
 261          }
 262       }
 263    }
 264 }
 265
 266
 267 static struct pipe_texture *
 268 svga_texture_create(struct pipe_screen *screen,
 269                     const struct pipe_texture *templat)
 270 {
 271    struct svga_screen *svgascreen = svga_screen(screen);
 272    struct svga_texture *tex = CALLOC_STRUCT(svga_texture);
 273    unsigned width, height, depth;
 274    unsigned level;
 275
 276    if (!tex)
 277       goto error1;
 278
 279    tex->base = *templat;
 280    pipe_reference_init(&tex->base.reference, 1);
 281    tex->base.screen = screen;
 282
 283    assert(templat->last_level < SVGA_MAX_TEXTURE_LEVELS);
 284    if(templat->last_level >= SVGA_MAX_TEXTURE_LEVELS)
 285       goto error2;
 286
 287    width = templat->width0;
 288    height = templat->height0;
 289    depth = templat->depth0;
 290    for(level = 0; level <= templat->last_level; ++level) {
 291       width = u_minify(width, 1);
 292       height = u_minify(height, 1);
 293       depth = u_minify(depth, 1);
 294    }
 295
 296    tex->key.flags = 0;
 297    tex->key.size.width = templat->width0;
 298    tex->key.size.height = templat->height0;
 299    tex->key.size.depth = templat->depth0;
 300
 301    if(templat->target == PIPE_TEXTURE_CUBE) {
 302       tex->key.flags |= SVGA3D_SURFACE_CUBEMAP;
 303       tex->key.numFaces = 6;
 304    }
 305    else {
 306       tex->key.numFaces = 1;
 307    }
 308
 309    if(templat->tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 310       tex->key.flags |= SVGA3D_SURFACE_HINT_TEXTURE;
 311
 312    if(templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY)
 313       tex->key.flags |= SVGA3D_SURFACE_HINT_SCANOUT;
 314
 315    /*
 316     * XXX: Never pass the SVGA3D_SURFACE_HINT_RENDERTARGET hint. Mesa cannot
 317     * know beforehand whether a texture will be used as a rendertarget or not
 318     * and it always requests PIPE_TEXTURE_USAGE_RENDER_TARGET, therefore
 319     * passing the SVGA3D_SURFACE_HINT_RENDERTARGET here defeats its purpose.
 320     */
 321 #if 0
 322    if((templat->tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) &&
 323       !util_format_is_compressed(templat->format))
 324       tex->key.flags |= SVGA3D_SURFACE_HINT_RENDERTARGET;
 325 #endif
 326
 327    if(templat->tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 328       tex->key.flags |= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
 329
 330    tex->key.numMipLevels = templat->last_level + 1;
 331
 332    tex->key.format = svga_translate_format(templat->format);
 333    if(tex->key.format == SVGA3D_FORMAT_INVALID)
 334       goto error2;
 335
 336    tex->key.cachable = 1;
 337
 338    SVGA_DBG(DEBUG_DMA, "surface_create for texture\n", tex->handle);
 339    tex->handle = svga_screen_surface_create(svgascreen, &tex->key);
 340    if (tex->handle)
 341       SVGA_DBG(DEBUG_DMA, "  --> got sid %p (texture)\n", tex->handle);
 342
 343    return &tex->base;
 344
 345 error2:
 346    FREE(tex);
 347 error1:
 348    return NULL;
 349 }
 350
 351
 352 static struct pipe_texture *
 353 svga_texture_blanket(struct pipe_screen * screen,
 354                      const struct pipe_texture *base,
 355                      const unsigned *stride,
 356                      struct pipe_buffer *buffer)
 357 {
 358    struct svga_texture *tex;
 359    struct svga_buffer *sbuf = svga_buffer(buffer);
 360    struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 361    assert(screen);
 362
 363    /* Only supports one type */
 364    if (base->target != PIPE_TEXTURE_2D ||
 365        base->last_level != 0 ||
 366        base->depth0 != 1) {
 367       return NULL;
 368    }
 369
 370    /**
 371     * We currently can't do texture blanket on
 372     * SVGA3D_BUFFER. Need to blit to a temporary surface?
 373     */
 374
 375    assert(sbuf->handle);
 376    if (!sbuf->handle)
 377       return NULL;
 378
 379    if (svga_translate_format(base->format) != sbuf->key.format) {
 380       unsigned f1 = svga_translate_format(base->format);
 381       unsigned f2 = sbuf->key.format;
 382
 383       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 384       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 385               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 386               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 387          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 388          return NULL;
 389       }
 390    }
 391
 392    tex = CALLOC_STRUCT(svga_texture);
 393    if (!tex)
 394       return NULL;
 395
 396    tex->base = *base;
 397
 398
 399    if (sbuf->key.format == 1)
 400       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 401    else if (sbuf->key.format == 2)
 402       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 403
 404    pipe_reference_init(&tex->base.reference, 1);
 405    tex->base.screen = screen;
 406
 407    SVGA_DBG(DEBUG_DMA, "blanket sid %p\n", sbuf->handle);
 408
 409    /* We don't own this storage, so don't try to cache it.
 410     */
 411    assert(sbuf->key.cachable == 0);
 412    tex->key.cachable = 0;
 413    sws->surface_reference(sws, &tex->handle, sbuf->handle);
 414
 415    return &tex->base;
 416 }
 417
 418
 419 static void
 420 svga_texture_destroy(struct pipe_texture *pt)
 421 {
 422    struct svga_screen *ss = svga_screen(pt->screen);
 423    struct svga_texture *tex = (struct svga_texture *)pt;
 424
 425    ss->texture_timestamp++;
 426
 427    svga_sampler_view_reference(&tex->cached_view, NULL);
 428
 429    /*
 430      DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
 431    */
 432    SVGA_DBG(DEBUG_DMA, "unref sid %p (texture)\n", tex->handle);
 433    svga_screen_surface_destroy(ss, &tex->key, &tex->handle);
 434
 435    FREE(tex);
 436 }
 437
 438
 439 static void
 440 svga_texture_copy_handle(struct svga_context *svga,
 441                          struct svga_screen *ss,
 442                          struct svga_winsys_surface *src_handle,
 443                          unsigned src_x, unsigned src_y, unsigned src_z,
 444                          unsigned src_level, unsigned src_face,
 445                          struct svga_winsys_surface *dst_handle,
 446                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
 447                          unsigned dst_level, unsigned dst_face,
 448                          unsigned width, unsigned height, unsigned depth)
 449 {
 450    struct svga_surface dst, src;
 451    enum pipe_error ret;
 452    SVGA3dCopyBox box, *boxes;
 453
 454    assert(svga || ss);
 455
 456    src.handle = src_handle;
 457    src.real_level = src_level;
 458    src.real_face = src_face;
 459    src.real_zslice = 0;
 460
 461    dst.handle = dst_handle;
 462    dst.real_level = dst_level;
 463    dst.real_face = dst_face;
 464    dst.real_zslice = 0;
 465
 466    box.x = dst_x;
 467    box.y = dst_y;
 468    box.z = dst_z;
 469    box.w = width;
 470    box.h = height;
 471    box.d = depth;
 472    box.srcx = src_x;
 473    box.srcy = src_y;
 474    box.srcz = src_z;
 475
 476 /*
 477    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
 478             src_handle, src_level, src_x, src_y, src_z,
 479             dst_handle, dst_level, dst_x, dst_y, dst_z);
 480 */
 481
 482    if (svga) {
 483       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 484                                     &src.base,
 485                                     &dst.base,
 486                                     &boxes, 1);
 487       if(ret != PIPE_OK) {
 488          svga_context_flush(svga, NULL);
 489          ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 490                                        &src.base,
 491                                        &dst.base,
 492                                        &boxes, 1);
 493          assert(ret == PIPE_OK);
 494       }
 495       *boxes = box;
 496       SVGA_FIFOCommitAll(svga->swc);
 497    } else {
 498       pipe_mutex_lock(ss->swc_mutex);
 499       ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 500                                     &src.base,
 501                                     &dst.base,
 502                                     &boxes, 1);
 503       if(ret != PIPE_OK) {
 504          ss->swc->flush(ss->swc, NULL);
 505          ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 506                                        &src.base,
 507                                        &dst.base,
 508                                        &boxes, 1);
 509          assert(ret == PIPE_OK);
 510       }
 511       *boxes = box;
 512       SVGA_FIFOCommitAll(ss->swc);
 513       pipe_mutex_unlock(ss->swc_mutex);
 514    }
 515 }
 516
 517 static struct svga_winsys_surface *
 518 svga_texture_view_surface(struct pipe_context *pipe,
 519                           struct svga_texture *tex,
 520                           SVGA3dSurfaceFormat format,
 521                           unsigned start_mip,
 522                           unsigned num_mip,
 523                           int face_pick,
 524                           int zslice_pick,
 525                           struct svga_host_surface_cache_key *key) /* OUT */
 526 {
 527    struct svga_screen *ss = svga_screen(tex->base.screen);
 528    struct svga_winsys_surface *handle;
 529    uint32_t i, j;
 530    unsigned z_offset = 0;
 531
 532    SVGA_DBG(DEBUG_PERF,
 533             "svga: Create surface view: face %d zslice %d mips %d..%d\n",
 534             face_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 535
 536    key->flags = 0;
 537    key->format = format;
 538    key->numMipLevels = num_mip;
 539    key->size.width = u_minify(tex->base.width0, start_mip);
 540    key->size.height = u_minify(tex->base.height0, start_mip);
 541    key->size.depth = zslice_pick < 0 ? u_minify(tex->base.depth0, start_mip) : 1;
 542    key->cachable = 1;
 543    assert(key->size.depth == 1);
 544
 545    if(tex->base.target == PIPE_TEXTURE_CUBE && face_pick < 0) {
 546       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 547       key->numFaces = 6;
 548    } else {
 549       key->numFaces = 1;
 550    }
 551
 552    if(key->format == SVGA3D_FORMAT_INVALID) {
 553       key->cachable = 0;
 554       return NULL;
 555    }
 556
 557    SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 558    handle = svga_screen_surface_create(ss, key);
 559    if (!handle) {
 560       key->cachable = 0;
 561       return NULL;
 562    }
 563
 564    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 565
 566    if (face_pick < 0)
 567       face_pick = 0;
 568
 569    if (zslice_pick >= 0)
 570        z_offset = zslice_pick;
 571
 572    for (i = 0; i < key->numMipLevels; i++) {
 573       for (j = 0; j < key->numFaces; j++) {
 574          if(tex->defined[j + face_pick][i + start_mip]) {
 575             unsigned depth = (zslice_pick < 0 ?
 576                               u_minify(tex->base.depth0, i + start_mip) :
 577                               1);
 578
 579             svga_texture_copy_handle(svga_context(pipe),
 580                                      ss,
 581                                      tex->handle,
 582                                      0, 0, z_offset,
 583                                      i + start_mip,
 584                                      j + face_pick,
 585                                      handle, 0, 0, 0, i, j,
 586                                      u_minify(tex->base.width0, i + start_mip),
 587                                      u_minify(tex->base.height0, i + start_mip),
 588                                      depth);
 589          }
 590       }
 591    }
 592
 593    return handle;
 594 }
 595
 596
 597 static struct pipe_surface *
 598 svga_get_tex_surface(struct pipe_screen *screen,
 599                      struct pipe_texture *pt,
 600                      unsigned face, unsigned level, unsigned zslice,
 601                      unsigned flags)
 602 {
 603    struct svga_texture *tex = svga_texture(pt);
 604    struct svga_surface *s;
 605    boolean render = flags & PIPE_BUFFER_USAGE_GPU_WRITE ? TRUE : FALSE;
 606    boolean view = FALSE;
 607    SVGA3dSurfaceFormat format;
 608
 609    s = CALLOC_STRUCT(svga_surface);
 610    if (!s)
 611       return NULL;
 612
 613    pipe_reference_init(&s->base.reference, 1);
 614    pipe_texture_reference(&s->base.texture, pt);
 615    s->base.format = pt->format;
 616    s->base.width = u_minify(pt->width0, level);
 617    s->base.height = u_minify(pt->height0, level);
 618    s->base.usage = flags;
 619    s->base.level = level;
 620    s->base.face = face;
 621    s->base.zslice = zslice;
 622
 623    if (!render)
 624       format = svga_translate_format(pt->format);
 625    else
 626       format = svga_translate_format_render(pt->format);
 627
 628    assert(format != SVGA3D_FORMAT_INVALID);
 629    assert(!(flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE));
 630
 631
 632    if (svga_screen(screen)->debug.force_surface_view)
 633       view = TRUE;
 634
 635    /* Currently only used for compressed textures */
 636    if (render &&
 637        format != svga_translate_format(pt->format)) {
 638       view = TRUE;
 639    }
 640
 641    if (level != 0 &&
 642        svga_screen(screen)->debug.force_level_surface_view)
 643       view = TRUE;
 644
 645    if (pt->target == PIPE_TEXTURE_3D)
 646       view = TRUE;
 647
 648    if (svga_screen(screen)->debug.no_surface_view)
 649       view = FALSE;
 650
 651    if (view) {
 652       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: yes %p, level %u face %u z %u, %p\n",
 653                pt, level, face, zslice, s);
 654
 655       s->handle = svga_texture_view_surface(NULL, tex, format, level, 1, face, zslice,
 656                                             &s->key);
 657       s->real_face = 0;
 658       s->real_level = 0;
 659       s->real_zslice = 0;
 660    } else {
 661       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: no %p, level %u, face %u, z %u, %p\n",
 662                pt, level, face, zslice, s);
 663
 664       memset(&s->key, 0, sizeof s->key);
 665       s->handle = tex->handle;
 666       s->real_face = face;
 667       s->real_level = level;
 668       s->real_zslice = zslice;
 669    }
 670
 671    return &s->base;
 672 }
 673
 674
 675 static void
 676 svga_tex_surface_destroy(struct pipe_surface *surf)
 677 {
 678    struct svga_surface *s = svga_surface(surf);
 679    struct svga_texture *t = svga_texture(surf->texture);
 680    struct svga_screen *ss = svga_screen(surf->texture->screen);
 681
 682    if(s->handle != t->handle) {
 683       SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 684       svga_screen_surface_destroy(ss, &s->key, &s->handle);
 685    }
 686
 687    pipe_texture_reference(&surf->texture, NULL);
 688    FREE(surf);
 689 }
 690
 691
 692 static INLINE void
 693 svga_mark_surface_dirty(struct pipe_surface *surf)
 694 {
 695    struct svga_surface *s = svga_surface(surf);
 696
 697    if(!s->dirty) {
 698       struct svga_texture *tex = svga_texture(surf->texture);
 699
 700       s->dirty = TRUE;
 701
 702       if (s->handle == tex->handle)
 703          tex->defined[surf->face][surf->level] = TRUE;
 704       else {
 705          /* this will happen later in svga_propagate_surface */
 706       }
 707    }
 708 }
 709
 710
 711 void svga_mark_surfaces_dirty(struct svga_context *svga)
 712 {
 713    unsigned i;
 714
 715    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 716       if (svga->curr.framebuffer.cbufs[i])
 717          svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 718    }
 719    if (svga->curr.framebuffer.zsbuf)
 720       svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 721 }
 722
 723 /**
 724  * Progagate any changes from surfaces to texture.
 725  * pipe is optional context to inline the blit command in.
 726  */
 727 void
 728 svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf)
 729 {
 730    struct svga_surface *s = svga_surface(surf);
 731    struct svga_texture *tex = svga_texture(surf->texture);
 732    struct svga_screen *ss = svga_screen(surf->texture->screen);
 733
 734    if (!s->dirty)
 735       return;
 736
 737    s->dirty = FALSE;
 738    ss->texture_timestamp++;
 739    tex->view_age[surf->level] = ++(tex->age);
 740
 741    if (s->handle != tex->handle) {
 742       SVGA_DBG(DEBUG_VIEWS, "svga: Surface propagate: tex %p, level %u, from %p\n", tex, surf->level, surf);
 743       svga_texture_copy_handle(svga_context(pipe), ss,
 744                                s->handle, 0, 0, 0, s->real_level, s->real_face,
 745                                tex->handle, 0, 0, surf->zslice, surf->level, surf->face,
 746                                u_minify(tex->base.width0, surf->level),
 747                                u_minify(tex->base.height0, surf->level), 1);
 748       tex->defined[surf->face][surf->level] = TRUE;
 749    }
 750 }
 751
 752 /**
 753  * Check if we should call svga_propagate_surface on the surface.
 754  */
 755 extern boolean
 756 svga_surface_needs_propagation(struct pipe_surface *surf)
 757 {
 758    struct svga_surface *s = svga_surface(surf);
 759    struct svga_texture *tex = svga_texture(surf->texture);
 760
 761    return s->dirty && s->handle != tex->handle;
 762 }
 763
 764
 765 static struct pipe_transfer *
 766 svga_get_tex_transfer(struct pipe_screen *screen,
 767                      struct pipe_texture *texture,
 768                      unsigned face, unsigned level, unsigned zslice,
 769                      enum pipe_transfer_usage usage, unsigned x, unsigned y,
 770                      unsigned w, unsigned h)
 771 {
 772    struct svga_screen *ss = svga_screen(screen);
 773    struct svga_winsys_screen *sws = ss->sws;
 774    struct svga_transfer *st;
 775    unsigned nblocksx = util_format_get_nblocksx(texture->format, w);
 776    unsigned nblocksy = util_format_get_nblocksy(texture->format, h);
 777
 778    /* We can't map texture storage directly */
 779    if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 780       return NULL;
 781
 782    st = CALLOC_STRUCT(svga_transfer);
 783    if (!st)
 784       return NULL;
 785
 786    st->base.x = x;
 787    st->base.y = y;
 788    st->base.width = w;
 789    st->base.height = h;
 790    st->base.stride = nblocksx*util_format_get_blocksize(texture->format);
 791    st->base.usage = usage;
 792    st->base.face = face;
 793    st->base.level = level;
 794    st->base.zslice = zslice;
 795
 796    st->hw_nblocksy = nblocksy;
 797
 798    st->hwbuf = svga_winsys_buffer_create(ss,
 799                                          1,
 800                                          0,
 801                                          st->hw_nblocksy*st->base.stride);
 802    while(!st->hwbuf && (st->hw_nblocksy /= 2)) {
 803       st->hwbuf = svga_winsys_buffer_create(ss,
 804                                             1,
 805                                             0,
 806                                             st->hw_nblocksy*st->base.stride);
 807    }
 808
 809    if(!st->hwbuf)
 810       goto no_hwbuf;
 811
 812    if(st->hw_nblocksy < nblocksy) {
 813       /* We couldn't allocate a hardware buffer big enough for the transfer,
 814        * so allocate regular malloc memory instead */
 815       debug_printf("%s: failed to allocate %u KB of DMA, splitting into %u x %u KB DMA transfers\n",
 816                    __FUNCTION__,
 817                    (nblocksy*st->base.stride + 1023)/1024,
 818                    (nblocksy + st->hw_nblocksy - 1)/st->hw_nblocksy,
 819                    (st->hw_nblocksy*st->base.stride + 1023)/1024);
 820       st->swbuf = MALLOC(nblocksy*st->base.stride);
 821       if(!st->swbuf)
 822          goto no_swbuf;
 823    }
 824
 825    pipe_texture_reference(&st->base.texture, texture);
 826
 827    if (usage & PIPE_TRANSFER_READ)
 828       svga_transfer_dma(st, SVGA3D_READ_HOST_VRAM);
 829
 830    return &st->base;
 831
 832 no_swbuf:
 833    sws->buffer_destroy(sws, st->hwbuf);
 834 no_hwbuf:
 835    FREE(st);
 836    return NULL;
 837 }
 838
 839
 840 static void *
 841 svga_transfer_map( struct pipe_screen *screen,
 842                    struct pipe_transfer *transfer )
 843 {
 844    struct svga_screen *ss = svga_screen(screen);
 845    struct svga_winsys_screen *sws = ss->sws;
 846    struct svga_transfer *st = svga_transfer(transfer);
 847
 848    if(st->swbuf)
 849       return st->swbuf;
 850    else
 851       /* The wait for read transfers already happened when svga_transfer_dma
 852        * was called. */
 853       return sws->buffer_map(sws, st->hwbuf,
 854                              pipe_transfer_buffer_flags(transfer));
 855 }
 856
 857
 858 static void
 859 svga_transfer_unmap(struct pipe_screen *screen,
 860                     struct pipe_transfer *transfer)
 861 {
 862    struct svga_screen *ss = svga_screen(screen);
 863    struct svga_winsys_screen *sws = ss->sws;
 864    struct svga_transfer *st = svga_transfer(transfer);
 865
 866    if(!st->swbuf)
 867       sws->buffer_unmap(sws, st->hwbuf);
 868 }
 869
 870
 871 static void
 872 svga_tex_transfer_destroy(struct pipe_transfer *transfer)
 873 {
 874    struct svga_texture *tex = svga_texture(transfer->texture);
 875    struct svga_screen *ss = svga_screen(transfer->texture->screen);
 876    struct svga_winsys_screen *sws = ss->sws;
 877    struct svga_transfer *st = svga_transfer(transfer);
 878
 879    if (st->base.usage & PIPE_TRANSFER_WRITE) {
 880       svga_transfer_dma(st, SVGA3D_WRITE_HOST_VRAM);
 881       ss->texture_timestamp++;
 882       tex->view_age[transfer->level] = ++(tex->age);
 883       tex->defined[transfer->face][transfer->level] = TRUE;
 884    }
 885
 886    pipe_texture_reference(&st->base.texture, NULL);
 887    FREE(st->swbuf);
 888    sws->buffer_destroy(sws, st->hwbuf);
 889    FREE(st);
 890 }
 891
 892 void
 893 svga_screen_init_texture_functions(struct pipe_screen *screen)
 894 {
 895    screen->texture_create = svga_texture_create;
 896    screen->texture_destroy = svga_texture_destroy;
 897    screen->get_tex_surface = svga_get_tex_surface;
 898    screen->tex_surface_destroy = svga_tex_surface_destroy;
 899    screen->texture_blanket = svga_texture_blanket;
 900    screen->get_tex_transfer = svga_get_tex_transfer;
 901    screen->transfer_map = svga_transfer_map;
 902    screen->transfer_unmap = svga_transfer_unmap;
 903    screen->tex_transfer_destroy = svga_tex_transfer_destroy;
 904 }
 905
 906 /***********************************************************************
 907  */
 908
 909 struct svga_sampler_view *
 910 svga_get_tex_sampler_view(struct pipe_context *pipe, struct pipe_texture *pt,
 911                           unsigned min_lod, unsigned max_lod)
 912 {
 913    struct svga_screen *ss = svga_screen(pt->screen);
 914    struct svga_texture *tex = svga_texture(pt);
 915    struct svga_sampler_view *sv = NULL;
 916    SVGA3dSurfaceFormat format = svga_translate_format(pt->format);
 917    boolean view = TRUE;
 918
 919    assert(pt);
 920    assert(min_lod >= 0);
 921    assert(min_lod <= max_lod);
 922    assert(max_lod <= pt->last_level);
 923
 924
 925    /* Is a view needed */
 926    {
 927       /*
 928        * Can't control max lod. For first level views and when we only
 929        * look at one level we disable mip filtering to achive the same
 930        * results as a view.
 931        */
 932       if (min_lod == 0 && max_lod >= pt->last_level)
 933          view = FALSE;
 934
 935       if (util_format_is_compressed(pt->format) && view) {
 936          format = svga_translate_format_render(pt->format);
 937       }
 938
 939       if (ss->debug.no_sampler_view)
 940          view = FALSE;
 941
 942       if (ss->debug.force_sampler_view)
 943          view = TRUE;
 944    }
 945
 946    /* First try the cache */
 947    if (view) {
 948       pipe_mutex_lock(ss->tex_mutex);
 949       if (tex->cached_view &&
 950           tex->cached_view->min_lod == min_lod &&
 951           tex->cached_view->max_lod == max_lod) {
 952          svga_sampler_view_reference(&sv, tex->cached_view);
 953          pipe_mutex_unlock(ss->tex_mutex);
 954          SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: reuse %p, %u %u, last %u\n",
 955                               pt, min_lod, max_lod, pt->last_level);
 956          svga_validate_sampler_view(svga_context(pipe), sv);
 957          return sv;
 958       }
 959       pipe_mutex_unlock(ss->tex_mutex);
 960    }
 961
 962    sv = CALLOC_STRUCT(svga_sampler_view);
 963    pipe_reference_init(&sv->reference, 1);
 964    pipe_texture_reference(&sv->texture, pt);
 965    sv->min_lod = min_lod;
 966    sv->max_lod = max_lod;
 967
 968    /* No view needed just use the whole texture */
 969    if (!view) {
 970       SVGA_DBG(DEBUG_VIEWS,
 971                "svga: Sampler view: no %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
 972                pt, min_lod, max_lod,
 973                max_lod - min_lod + 1,
 974                pt->width0,
 975                pt->height0,
 976                pt->depth0,
 977                pt->last_level);
 978       sv->key.cachable = 0;
 979       sv->handle = tex->handle;
 980       return sv;
 981    }
 982
 983    SVGA_DBG(DEBUG_VIEWS,
 984             "svga: Sampler view: yes %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
 985             pt, min_lod, max_lod,
 986             max_lod - min_lod + 1,
 987             pt->width0,
 988             pt->height0,
 989             pt->depth0,
 990             pt->last_level);
 991
 992    sv->age = tex->age;
 993    sv->handle = svga_texture_view_surface(pipe, tex, format,
 994                                           min_lod,
 995                                           max_lod - min_lod + 1,
 996                                           -1, -1,
 997                                           &sv->key);
 998
 999    if (!sv->handle) {
1000       assert(0);
1001       sv->key.cachable = 0;
1002       sv->handle = tex->handle;
1003       return sv;
1004    }
1005
1006    pipe_mutex_lock(ss->tex_mutex);
1007    svga_sampler_view_reference(&tex->cached_view, sv);
1008    pipe_mutex_unlock(ss->tex_mutex);
1009
1010    return sv;
1011 }
1012
1013 void
1014 svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v)
1015 {
1016    struct svga_texture *tex = svga_texture(v->texture);
1017    unsigned numFaces;
1018    unsigned age = 0;
1019    int i, k;
1020
1021    assert(svga);
1022
1023    if (v->handle == tex->handle)
1024       return;
1025
1026    age = tex->age;
1027
1028    if(tex->base.target == PIPE_TEXTURE_CUBE)
1029       numFaces = 6;
1030    else
1031       numFaces = 1;
1032
1033    for (i = v->min_lod; i <= v->max_lod; i++) {
1034       for (k = 0; k < numFaces; k++) {
1035          if (v->age < tex->view_age[i])
1036             svga_texture_copy_handle(svga, NULL,
1037                                      tex->handle, 0, 0, 0, i, k,
1038                                      v->handle, 0, 0, 0, i - v->min_lod, k,
1039                                      u_minify(tex->base.width0, i),
1040                                      u_minify(tex->base.height0, i),
1041                                      u_minify(tex->base.depth0, i));
1042       }
1043    }
1044
1045    v->age = age;
1046 }
1047
1048 void
1049 svga_destroy_sampler_view_priv(struct svga_sampler_view *v)
1050 {
1051    struct svga_texture *tex = svga_texture(v->texture);
1052
1053    if(v->handle != tex->handle) {
1054       struct svga_screen *ss = svga_screen(v->texture->screen);
1055       SVGA_DBG(DEBUG_DMA, "unref sid %p (sampler view)\n", v->handle);
1056       svga_screen_surface_destroy(ss, &v->key, &v->handle);
1057    }
1058    pipe_texture_reference(&v->texture, NULL);
1059    FREE(v);
1060 }
1061
1062 boolean
1063 svga_screen_buffer_from_texture(struct pipe_texture *texture,
1064                                 struct pipe_buffer **buffer,
1065                                 unsigned *stride)
1066 {
1067    struct svga_texture *stex = svga_texture(texture);
1068
1069    *buffer = svga_screen_buffer_wrap_surface
1070       (texture->screen,
1071        svga_translate_format(texture->format),
1072        stex->handle);
1073
1074    *stride = util_format_get_stride(texture->format, texture->width0);
1075
1076    return *buffer != NULL;
1077 }
1078
1079
1080 struct svga_winsys_surface *
1081 svga_screen_texture_get_winsys_surface(struct pipe_texture *texture)
1082 {
1083    struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
1084    struct svga_winsys_surface *vsurf = NULL;
1085
1086    assert(svga_texture(texture)->key.cachable == 0);
1087    svga_texture(texture)->key.cachable = 0;
1088    sws->surface_reference(sws, &vsurf, svga_texture(texture)->handle);
1089    return vsurf;
1090 }