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->width0;
 285    height = templat->height0;
 286    depth = templat->depth0;
 287    for(level = 0; level <= templat->last_level; ++level) {
 288       tex->base.nblocksx[level] = pf_get_nblocksx(&tex->base.block, width);
 289       tex->base.nblocksy[level] = pf_get_nblocksy(&tex->base.block, height);
 290       width = u_minify(width, 1);
 291       height = u_minify(height, 1);
 292       depth = u_minify(depth, 1);
 293    }
 294
 295    tex->key.flags = 0;
 296    tex->key.size.width = templat->width0;
 297    tex->key.size.height = templat->height0;
 298    tex->key.size.depth = templat->depth0;
 299
 300    if(templat->target == PIPE_TEXTURE_CUBE) {
 301       tex->key.flags |= SVGA3D_SURFACE_CUBEMAP;
 302       tex->key.numFaces = 6;
 303    }
 304    else {
 305       tex->key.numFaces = 1;
 306    }
 307
 308    if(templat->tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 309       tex->key.flags |= SVGA3D_SURFACE_HINT_TEXTURE;
 310
 311    if(templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY)
 312       tex->key.flags |= SVGA3D_SURFACE_HINT_SCANOUT;
 313
 314    /*
 315     * XXX: Never pass the SVGA3D_SURFACE_HINT_RENDERTARGET hint. Mesa cannot
 316     * know beforehand whether a texture will be used as a rendertarget or not
 317     * and it always requests PIPE_TEXTURE_USAGE_RENDER_TARGET, therefore
 318     * passing the SVGA3D_SURFACE_HINT_RENDERTARGET here defeats its purpose.
 319     */
 320 #if 0
 321    if((templat->tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) &&
 322       !pf_is_compressed(templat->format))
 323       tex->key.flags |= SVGA3D_SURFACE_HINT_RENDERTARGET;
 324 #endif
 325
 326    if(templat->tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 327       tex->key.flags |= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
 328
 329    tex->key.numMipLevels = templat->last_level + 1;
 330
 331    tex->key.format = svga_translate_format(templat->format);
 332    if(tex->key.format == SVGA3D_FORMAT_INVALID)
 333       goto error2;
 334
 335    tex->key.cachable = 1;
 336
 337    SVGA_DBG(DEBUG_DMA, "surface_create for texture\n", tex->handle);
 338    tex->handle = svga_screen_surface_create(svgascreen, &tex->key);
 339    if (tex->handle)
 340       SVGA_DBG(DEBUG_DMA, "  --> got sid %p (texture)\n", tex->handle);
 341
 342    return &tex->base;
 343
 344 error2:
 345    FREE(tex);
 346 error1:
 347    return NULL;
 348 }
 349
 350
 351 static struct pipe_texture *
 352 svga_texture_blanket(struct pipe_screen * screen,
 353                      const struct pipe_texture *base,
 354                      const unsigned *stride,
 355                      struct pipe_buffer *buffer)
 356 {
 357    struct svga_texture *tex;
 358    struct svga_buffer *sbuf = svga_buffer(buffer);
 359    struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 360    assert(screen);
 361
 362    /* Only supports one type */
 363    if (base->target != PIPE_TEXTURE_2D ||
 364        base->last_level != 0 ||
 365        base->depth0 != 1) {
 366       return NULL;
 367    }
 368
 369    /**
 370     * We currently can't do texture blanket on
 371     * SVGA3D_BUFFER. Need to blit to a temporary surface?
 372     */
 373
 374    assert(sbuf->handle);
 375    if (!sbuf->handle)
 376       return NULL;
 377
 378    if (svga_translate_format(base->format) != sbuf->key.format) {
 379       unsigned f1 = svga_translate_format(base->format);
 380       unsigned f2 = sbuf->key.format;
 381
 382       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 383       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 384               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 385               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 386          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 387          return NULL;
 388       }
 389    }
 390
 391    tex = CALLOC_STRUCT(svga_texture);
 392    if (!tex)
 393       return NULL;
 394
 395    tex->base = *base;
 396
 397
 398    if (sbuf->key.format == 1)
 399       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 400    else if (sbuf->key.format == 2)
 401       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 402
 403    pipe_reference_init(&tex->base.reference, 1);
 404    tex->base.screen = screen;
 405
 406    SVGA_DBG(DEBUG_DMA, "blanket sid %p\n", sbuf->handle);
 407
 408    /* We don't own this storage, so don't try to cache it.
 409     */
 410    assert(sbuf->key.cachable == 0);
 411    tex->key.cachable = 0;
 412    sws->surface_reference(sws, &tex->handle, sbuf->handle);
 413
 414    return &tex->base;
 415 }
 416
 417
 418 static void
 419 svga_texture_destroy(struct pipe_texture *pt)
 420 {
 421    struct svga_screen *ss = svga_screen(pt->screen);
 422    struct svga_texture *tex = (struct svga_texture *)pt;
 423
 424    ss->texture_timestamp++;
 425
 426    svga_sampler_view_reference(&tex->cached_view, NULL);
 427
 428    /*
 429      DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
 430    */
 431    SVGA_DBG(DEBUG_DMA, "unref sid %p (texture)\n", tex->handle);
 432    svga_screen_surface_destroy(ss, &tex->key, &tex->handle);
 433
 434    FREE(tex);
 435 }
 436
 437
 438 static void
 439 svga_texture_copy_handle(struct svga_context *svga,
 440                          struct svga_screen *ss,
 441                          struct svga_winsys_surface *src_handle,
 442                          unsigned src_x, unsigned src_y, unsigned src_z,
 443                          unsigned src_level, unsigned src_face,
 444                          struct svga_winsys_surface *dst_handle,
 445                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
 446                          unsigned dst_level, unsigned dst_face,
 447                          unsigned width, unsigned height, unsigned depth)
 448 {
 449    struct svga_surface dst, src;
 450    enum pipe_error ret;
 451    SVGA3dCopyBox box, *boxes;
 452
 453    assert(svga || ss);
 454
 455    src.handle = src_handle;
 456    src.real_level = src_level;
 457    src.real_face = src_face;
 458    src.real_zslice = 0;
 459
 460    dst.handle = dst_handle;
 461    dst.real_level = dst_level;
 462    dst.real_face = dst_face;
 463    dst.real_zslice = 0;
 464
 465    box.x = dst_x;
 466    box.y = dst_y;
 467    box.z = dst_z;
 468    box.w = width;
 469    box.h = height;
 470    box.d = depth;
 471    box.srcx = src_x;
 472    box.srcy = src_y;
 473    box.srcz = src_z;
 474
 475 /*
 476    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
 477             src_handle, src_level, src_x, src_y, src_z,
 478             dst_handle, dst_level, dst_x, dst_y, dst_z);
 479 */
 480
 481    if (svga) {
 482       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 483                                     &src.base,
 484                                     &dst.base,
 485                                     &boxes, 1);
 486       if(ret != PIPE_OK) {
 487          svga_context_flush(svga, NULL);
 488          ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 489                                        &src.base,
 490                                        &dst.base,
 491                                        &boxes, 1);
 492          assert(ret == PIPE_OK);
 493       }
 494       *boxes = box;
 495       SVGA_FIFOCommitAll(svga->swc);
 496    } else {
 497       pipe_mutex_lock(ss->swc_mutex);
 498       ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 499                                     &src.base,
 500                                     &dst.base,
 501                                     &boxes, 1);
 502       if(ret != PIPE_OK) {
 503          ss->swc->flush(ss->swc, NULL);
 504          ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 505                                        &src.base,
 506                                        &dst.base,
 507                                        &boxes, 1);
 508          assert(ret == PIPE_OK);
 509       }
 510       *boxes = box;
 511       SVGA_FIFOCommitAll(ss->swc);
 512       pipe_mutex_unlock(ss->swc_mutex);
 513    }
 514 }
 515
 516 static struct svga_winsys_surface *
 517 svga_texture_view_surface(struct pipe_context *pipe,
 518                           struct svga_texture *tex,
 519                           SVGA3dSurfaceFormat format,
 520                           unsigned start_mip,
 521                           unsigned num_mip,
 522                           int face_pick,
 523                           int zslice_pick,
 524                           struct svga_host_surface_cache_key *key) /* OUT */
 525 {
 526    struct svga_screen *ss = svga_screen(tex->base.screen);
 527    struct svga_winsys_surface *handle;
 528    int i, j;
 529    unsigned z_offset = 0;
 530
 531    SVGA_DBG(DEBUG_PERF,
 532             "svga: Create surface view: face %d zslice %d mips %d..%d\n",
 533             face_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 534
 535    key->flags = 0;
 536    key->format = format;
 537    key->numMipLevels = num_mip;
 538    key->size.width = u_minify(tex->base.width0, start_mip);
 539    key->size.height = u_minify(tex->base.height0, start_mip);
 540    key->size.depth = zslice_pick < 0 ? u_minify(tex->base.depth0, start_mip) : 1;
 541    key->cachable = 1;
 542    assert(key->size.depth == 1);
 543
 544    if(tex->base.target == PIPE_TEXTURE_CUBE && face_pick < 0) {
 545       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 546       key->numFaces = 6;
 547    } else {
 548       key->numFaces = 1;
 549    }
 550
 551    if(key->format == SVGA3D_FORMAT_INVALID) {
 552       key->cachable = 0;
 553       return NULL;
 554    }
 555
 556    SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 557    handle = svga_screen_surface_create(ss, key);
 558    if (!handle) {
 559       key->cachable = 0;
 560       return NULL;
 561    }
 562
 563    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 564
 565    if (face_pick < 0)
 566       face_pick = 0;
 567
 568    if (zslice_pick >= 0)
 569        z_offset = zslice_pick;
 570
 571    for (i = 0; i < key->numMipLevels; i++) {
 572       for (j = 0; j < key->numFaces; j++) {
 573          if(tex->defined[j + face_pick][i + start_mip]) {
 574             unsigned depth = (zslice_pick < 0 ?
 575                               u_minify(tex->base.depth0, i + start_mip) :
 576                               1);
 577
 578             svga_texture_copy_handle(svga_context(pipe),
 579                                      ss,
 580                                      tex->handle,
 581                                      0, 0, z_offset,
 582                                      i + start_mip,
 583                                      j + face_pick,
 584                                      handle, 0, 0, 0, i, j,
 585                                      u_minify(tex->base.width0, i + start_mip),
 586                                      u_minify(tex->base.height0, i + start_mip),
 587                                      depth);
 588          }
 589       }
 590    }
 591
 592    return handle;
 593 }
 594
 595
 596 static struct pipe_surface *
 597 svga_get_tex_surface(struct pipe_screen *screen,
 598                      struct pipe_texture *pt,
 599                      unsigned face, unsigned level, unsigned zslice,
 600                      unsigned flags)
 601 {
 602    struct svga_texture *tex = svga_texture(pt);
 603    struct svga_surface *s;
 604    boolean render = flags & PIPE_BUFFER_USAGE_GPU_WRITE ? TRUE : FALSE;
 605    boolean view = FALSE;
 606    SVGA3dSurfaceFormat format;
 607
 608    s = CALLOC_STRUCT(svga_surface);
 609    if (!s)
 610       return NULL;
 611
 612    pipe_reference_init(&s->base.reference, 1);
 613    pipe_texture_reference(&s->base.texture, pt);
 614    s->base.format = pt->format;
 615    s->base.width = u_minify(pt->width0, level);
 616    s->base.height = u_minify(pt->height0, level);
 617    s->base.usage = flags;
 618    s->base.level = level;
 619    s->base.face = face;
 620    s->base.zslice = zslice;
 621
 622    if (!render)
 623       format = svga_translate_format(pt->format);
 624    else
 625       format = svga_translate_format_render(pt->format);
 626
 627    assert(format != SVGA3D_FORMAT_INVALID);
 628    assert(!(flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE));
 629
 630
 631    if (svga_screen(screen)->debug.force_surface_view)
 632       view = TRUE;
 633
 634    /* Currently only used for compressed textures */
 635    if (render &&
 636        format != svga_translate_format(pt->format)) {
 637       view = TRUE;
 638    }
 639
 640    if (level != 0 &&
 641        svga_screen(screen)->debug.force_level_surface_view)
 642       view = TRUE;
 643
 644    if (pt->target == PIPE_TEXTURE_3D)
 645       view = TRUE;
 646
 647    if (svga_screen(screen)->debug.no_surface_view)
 648       view = FALSE;
 649
 650    if (view) {
 651       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: yes %p, level %u face %u z %u, %p\n",
 652                pt, level, face, zslice, s);
 653
 654       s->handle = svga_texture_view_surface(NULL, tex, format, level, 1, face, zslice,
 655                                             &s->key);
 656       s->real_face = 0;
 657       s->real_level = 0;
 658       s->real_zslice = 0;
 659    } else {
 660       struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 661
 662       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: no %p, level %u, face %u, z %u, %p\n",
 663                pt, level, face, zslice, s);
 664
 665       memset(&s->key, 0, sizeof s->key);
 666       sws->surface_reference(sws, &s->handle, tex->handle);
 667       s->real_face = face;
 668       s->real_level = level;
 669       s->real_zslice = zslice;
 670    }
 671
 672    return &s->base;
 673 }
 674
 675
 676 static void
 677 svga_tex_surface_destroy(struct pipe_surface *surf)
 678 {
 679    struct svga_surface *s = svga_surface(surf);
 680    struct svga_screen *ss = svga_screen(surf->texture->screen);
 681
 682    SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 683    assert(s->key.cachable == 0);
 684    svga_screen_surface_destroy(ss, &s->key, &s->handle);
 685    pipe_texture_reference(&surf->texture, NULL);
 686    FREE(surf);
 687 }
 688
 689
 690 static INLINE void
 691 svga_mark_surface_dirty(struct pipe_surface *surf)
 692 {
 693    struct svga_surface *s = svga_surface(surf);
 694
 695    if(!s->dirty) {
 696       struct svga_texture *tex = svga_texture(surf->texture);
 697
 698       s->dirty = TRUE;
 699
 700       if (s->handle == tex->handle)
 701          tex->defined[surf->face][surf->level] = TRUE;
 702       else {
 703          /* this will happen later in svga_propagate_surface */
 704       }
 705    }
 706 }
 707
 708
 709 void svga_mark_surfaces_dirty(struct svga_context *svga)
 710 {
 711    unsigned i;
 712
 713    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 714       if (svga->curr.framebuffer.cbufs[i])
 715          svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 716    }
 717    if (svga->curr.framebuffer.zsbuf)
 718       svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 719 }
 720
 721 /**
 722  * Progagate any changes from surfaces to texture.
 723  * pipe is optional context to inline the blit command in.
 724  */
 725 void
 726 svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf)
 727 {
 728    struct svga_surface *s = svga_surface(surf);
 729    struct svga_texture *tex = svga_texture(surf->texture);
 730    struct svga_screen *ss = svga_screen(surf->texture->screen);
 731
 732    if (!s->dirty)
 733       return;
 734
 735    s->dirty = FALSE;
 736    ss->texture_timestamp++;
 737    tex->view_age[surf->level] = ++(tex->age);
 738
 739    if (s->handle != tex->handle) {
 740       SVGA_DBG(DEBUG_VIEWS, "svga: Surface propagate: tex %p, level %u, from %p\n", tex, surf->level, surf);
 741       svga_texture_copy_handle(svga_context(pipe), ss,
 742                                s->handle, 0, 0, 0, s->real_level, s->real_face,
 743                                tex->handle, 0, 0, surf->zslice, surf->level, surf->face,
 744                                u_minify(tex->base.width0, surf->level),
 745                                u_minify(tex->base.height0, surf->level), 1);
 746       tex->defined[surf->face][surf->level] = TRUE;
 747    }
 748 }
 749
 750 /**
 751  * Check if we should call svga_propagate_surface on the surface.
 752  */
 753 extern boolean
 754 svga_surface_needs_propagation(struct pipe_surface *surf)
 755 {
 756    struct svga_surface *s = svga_surface(surf);
 757    struct svga_texture *tex = svga_texture(surf->texture);
 758
 759    return s->dirty && s->handle != tex->handle;
 760 }
 761
 762
 763 static struct pipe_transfer *
 764 svga_get_tex_transfer(struct pipe_screen *screen,
 765                      struct pipe_texture *texture,
 766                      unsigned face, unsigned level, unsigned zslice,
 767                      enum pipe_transfer_usage usage, unsigned x, unsigned y,
 768                      unsigned w, unsigned h)
 769 {
 770    struct svga_screen *ss = svga_screen(screen);
 771    struct svga_winsys_screen *sws = ss->sws;
 772    struct svga_transfer *st;
 773
 774    /* We can't map texture storage directly */
 775    if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 776       return NULL;
 777
 778    st = CALLOC_STRUCT(svga_transfer);
 779    if (!st)
 780       return NULL;
 781
 782    st->base.format = texture->format;
 783    st->base.block = texture->block;
 784    st->base.x = x;
 785    st->base.y = y;
 786    st->base.width = w;
 787    st->base.height = h;
 788    st->base.nblocksx = pf_get_nblocksx(&texture->block, w);
 789    st->base.nblocksy = pf_get_nblocksy(&texture->block, h);
 790    st->base.stride = st->base.nblocksx*st->base.block.size;
 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 = st->base.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 < st->base.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                    (st->base.nblocksy*st->base.stride + 1023)/1024,
 818                    (st->base.nblocksy + st->hw_nblocksy - 1)/st->hw_nblocksy,
 819                    (st->hw_nblocksy*st->base.stride + 1023)/1024);
 820       st->swbuf = MALLOC(st->base.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_winsys_screen *sws = ss->sws;
 915    struct svga_texture *tex = svga_texture(pt);
 916    struct svga_sampler_view *sv = NULL;
 917    SVGA3dSurfaceFormat format = svga_translate_format(pt->format);
 918    boolean view = TRUE;
 919
 920    assert(pt);
 921    assert(min_lod >= 0);
 922    assert(min_lod <= max_lod);
 923    assert(max_lod <= pt->last_level);
 924
 925
 926    /* Is a view needed */
 927    {
 928       /*
 929        * Can't control max lod. For first level views and when we only
 930        * look at one level we disable mip filtering to achive the same
 931        * results as a view.
 932        */
 933       if (min_lod == 0 && max_lod >= pt->last_level)
 934          view = FALSE;
 935
 936       if (pf_is_compressed(pt->format) && view) {
 937          format = svga_translate_format_render(pt->format);
 938       }
 939
 940       if (ss->debug.no_sampler_view)
 941          view = FALSE;
 942
 943       if (ss->debug.force_sampler_view)
 944          view = TRUE;
 945    }
 946
 947    /* First try the cache */
 948    if (view) {
 949       pipe_mutex_lock(ss->tex_mutex);
 950       if (tex->cached_view &&
 951           tex->cached_view->min_lod == min_lod &&
 952           tex->cached_view->max_lod == max_lod) {
 953          svga_sampler_view_reference(&sv, tex->cached_view);
 954          pipe_mutex_unlock(ss->tex_mutex);
 955          SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: reuse %p, %u %u, last %u\n",
 956                               pt, min_lod, max_lod, pt->last_level);
 957          svga_validate_sampler_view(svga_context(pipe), sv);
 958          return sv;
 959       }
 960       pipe_mutex_unlock(ss->tex_mutex);
 961    }
 962
 963    sv = CALLOC_STRUCT(svga_sampler_view);
 964    pipe_reference_init(&sv->reference, 1);
 965    sv->texture = tex;
 966    sv->min_lod = min_lod;
 967    sv->max_lod = max_lod;
 968
 969    /* No view needed just use the whole texture */
 970    if (!view) {
 971       SVGA_DBG(DEBUG_VIEWS,
 972                "svga: Sampler view: no %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
 973                pt, min_lod, max_lod,
 974                max_lod - min_lod + 1,
 975                pt->width0,
 976                pt->height0,
 977                pt->depth0,
 978                pt->last_level);
 979       sv->key.cachable = 0;
 980       sws->surface_reference(sws, &sv->handle, tex->handle);
 981       return sv;
 982    }
 983
 984    SVGA_DBG(DEBUG_VIEWS,
 985             "svga: Sampler view: yes %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
 986             pt, min_lod, max_lod,
 987             max_lod - min_lod + 1,
 988             pt->width0,
 989             pt->height0,
 990             pt->depth0,
 991             pt->last_level);
 992
 993    sv->age = tex->age;
 994    sv->handle = svga_texture_view_surface(pipe, tex, format,
 995                                           min_lod,
 996                                           max_lod - min_lod + 1,
 997                                           -1, -1,
 998                                           &sv->key);
 999
1000    if (!sv->handle) {
1001       assert(0);
1002       sv->key.cachable = 0;
1003       sws->surface_reference(sws, &sv->handle, tex->handle);
1004       return sv;
1005    }
1006
1007    pipe_mutex_lock(ss->tex_mutex);
1008    svga_sampler_view_reference(&tex->cached_view, sv);
1009    pipe_mutex_unlock(ss->tex_mutex);
1010
1011    return sv;
1012 }
1013
1014 void
1015 svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v)
1016 {
1017    struct svga_texture *tex = v->texture;
1018    unsigned numFaces;
1019    unsigned age = 0;
1020    int i, k;
1021
1022    assert(svga);
1023
1024    if (v->handle == v->texture->handle)
1025       return;
1026
1027    age = tex->age;
1028
1029    if(tex->base.target == PIPE_TEXTURE_CUBE)
1030       numFaces = 6;
1031    else
1032       numFaces = 1;
1033
1034    for (i = v->min_lod; i <= v->max_lod; i++) {
1035       for (k = 0; k < numFaces; k++) {
1036          if (v->age < tex->view_age[i])
1037             svga_texture_copy_handle(svga, NULL,
1038                                      tex->handle, 0, 0, 0, i, k,
1039                                      v->handle, 0, 0, 0, i - v->min_lod, k,
1040                                      u_minify(tex->base.width0, i),
1041                                      u_minify(tex->base.height0, i),
1042                                      u_minify(tex->base.depth0, i));
1043       }
1044    }
1045
1046    v->age = age;
1047 }
1048
1049 void
1050 svga_destroy_sampler_view_priv(struct svga_sampler_view *v)
1051 {
1052    struct svga_screen *ss = svga_screen(v->texture->base.screen);
1053
1054    SVGA_DBG(DEBUG_DMA, "unref sid %p (sampler view)\n", v->handle);
1055    svga_screen_surface_destroy(ss, &v->key, &v->handle);
1056
1057    FREE(v);
1058 }
1059
1060 boolean
1061 svga_screen_buffer_from_texture(struct pipe_texture *texture,
1062                                 struct pipe_buffer **buffer,
1063                                 unsigned *stride)
1064 {
1065    struct svga_texture *stex = svga_texture(texture);
1066
1067    *buffer = svga_screen_buffer_wrap_surface
1068       (texture->screen,
1069        svga_translate_format(texture->format),
1070        stex->handle);
1071
1072    *stride = pf_get_nblocksx(&texture->block, texture->width0) *
1073       texture->block.size;
1074
1075    return *buffer != NULL;
1076 }
1077
1078
1079 struct svga_winsys_surface *
1080 svga_screen_texture_get_winsys_surface(struct pipe_texture *texture)
1081 {
1082    struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
1083    struct svga_winsys_surface *vsurf = NULL;
1084
1085    assert(svga_texture(texture)->key.cachable == 0);
1086    svga_texture(texture)->key.cachable = 0;
1087    sws->surface_reference(sws, &vsurf, svga_texture(texture)->handle);
1088    return vsurf;
1089 }