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    if(templat->tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 312       tex->key.flags |= SVGA3D_SURFACE_HINT_TEXTURE;
 313
 314    if(templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY)
 315       tex->key.flags |= SVGA3D_SURFACE_HINT_SCANOUT;
 316
 317    /*
 318     * XXX: Never pass the SVGA3D_SURFACE_HINT_RENDERTARGET hint. Mesa cannot
 319     * know beforehand whether a texture will be used as a rendertarget or not
 320     * and it always requests PIPE_TEXTURE_USAGE_RENDER_TARGET, therefore
 321     * passing the SVGA3D_SURFACE_HINT_RENDERTARGET here defeats its purpose.
 322     */
 323 #if 0
 324    if((templat->tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) &&
 325       !pf_is_compressed(templat->format))
 326       tex->key.flags |= SVGA3D_SURFACE_HINT_RENDERTARGET;
 327 #endif
 328
 329    if(templat->tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 330       tex->key.flags |= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
 331
 332    tex->key.numMipLevels = templat->last_level + 1;
 333
 334    tex->key.format = svga_translate_format(templat->format);
 335    if(tex->key.format == SVGA3D_FORMAT_INVALID)
 336       goto error2;
 337
 338    tex->key.cachable = 1;
 339
 340    SVGA_DBG(DEBUG_DMA, "surface_create for texture\n", tex->handle);
 341    tex->handle = svga_screen_surface_create(svgascreen, &tex->key);
 342    if (tex->handle)
 343       SVGA_DBG(DEBUG_DMA, "  --> got sid %p (texture)\n", tex->handle);
 344
 345    return &tex->base;
 346
 347 error2:
 348    FREE(tex);
 349 error1:
 350    return NULL;
 351 }
 352
 353
 354 static struct pipe_texture *
 355 svga_texture_blanket(struct pipe_screen * screen,
 356                      const struct pipe_texture *base,
 357                      const unsigned *stride,
 358                      struct pipe_buffer *buffer)
 359 {
 360    struct svga_texture *tex;
 361    struct svga_buffer *sbuf = svga_buffer(buffer);
 362    struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 363    assert(screen);
 364
 365    /* Only supports one type */
 366    if (base->target != PIPE_TEXTURE_2D ||
 367        base->last_level != 0 ||
 368        base->depth[0] != 1) {
 369       return NULL;
 370    }
 371
 372    /**
 373     * We currently can't do texture blanket on
 374     * SVGA3D_BUFFER. Need to blit to a temporary surface?
 375     */
 376
 377    assert(sbuf->handle);
 378    if (!sbuf->handle)
 379       return NULL;
 380
 381    if (svga_translate_format(base->format) != sbuf->key.format) {
 382       unsigned f1 = svga_translate_format(base->format);
 383       unsigned f2 = sbuf->key.format;
 384
 385       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 386       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 387               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 388               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 389          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 390          return NULL;
 391       }
 392    }
 393
 394    tex = CALLOC_STRUCT(svga_texture);
 395    if (!tex)
 396       return NULL;
 397
 398    tex->base = *base;
 399
 400    /* We don't own this storage, so don't try to cache it.
 401     */
 402    tex->key.cachable = 0;
 403
 404    if (sbuf->key.format == 1)
 405       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 406    else if (sbuf->key.format == 2)
 407       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 408
 409    pipe_reference_init(&tex->base.reference, 1);
 410    tex->base.screen = screen;
 411
 412    SVGA_DBG(DEBUG_DMA, "blanket sid %p\n", sbuf->handle);
 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    int 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 = tex->base.width[start_mip];
 540    key->size.height = tex->base.height[start_mip];
 541    key->size.depth = zslice_pick < 0 ? tex->base.depth[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       return NULL;
 554
 555    SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n", handle);
 556    handle = svga_screen_surface_create(ss, key);
 557    if (!handle)
 558       return NULL;
 559
 560    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 561
 562    if (face_pick < 0)
 563       face_pick = 0;
 564
 565    if (zslice_pick >= 0)
 566        z_offset = zslice_pick;
 567
 568    for (i = 0; i < key->numMipLevels; i++) {
 569       for (j = 0; j < key->numFaces; j++) {
 570          if(tex->defined[j + face_pick][i + start_mip]) {
 571             unsigned depth = zslice_pick < 0 ? tex->base.depth[i + start_mip] : 1;
 572             svga_texture_copy_handle(svga_context(pipe),
 573                                      ss,
 574                                      tex->handle,
 575                                      0, 0, z_offset,
 576                                      i + start_mip,
 577                                      j + face_pick,
 578                                      handle, 0, 0, 0, i, j,
 579                                      tex->base.width[i + start_mip],
 580                                      tex->base.height[i + start_mip],
 581                                      depth);
 582          }
 583       }
 584    }
 585
 586    return handle;
 587 }
 588
 589
 590 static struct pipe_surface *
 591 svga_get_tex_surface(struct pipe_screen *screen,
 592                      struct pipe_texture *pt,
 593                      unsigned face, unsigned level, unsigned zslice,
 594                      unsigned flags)
 595 {
 596    struct svga_texture *tex = svga_texture(pt);
 597    struct svga_surface *s;
 598    boolean render = flags & PIPE_BUFFER_USAGE_GPU_WRITE ? TRUE : FALSE;
 599    boolean view = FALSE;
 600    SVGA3dSurfaceFormat format;
 601
 602    s = CALLOC_STRUCT(svga_surface);
 603    if (!s)
 604       return NULL;
 605
 606    pipe_reference_init(&s->base.reference, 1);
 607    pipe_texture_reference(&s->base.texture, pt);
 608    s->base.format = pt->format;
 609    s->base.width = pt->width[level];
 610    s->base.height = pt->height[level];
 611    s->base.usage = flags;
 612    s->base.level = level;
 613    s->base.face = face;
 614    s->base.zslice = zslice;
 615
 616    if (!render)
 617       format = svga_translate_format(pt->format);
 618    else
 619       format = svga_translate_format_render(pt->format);
 620
 621    assert(format != SVGA3D_FORMAT_INVALID);
 622    assert(!(flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE));
 623
 624
 625    if (svga_screen(screen)->debug.force_surface_view)
 626       view = TRUE;
 627
 628    /* Currently only used for compressed textures */
 629    if (render &&
 630        format != svga_translate_format(pt->format)) {
 631       view = TRUE;
 632    }
 633
 634    if (level != 0 &&
 635        svga_screen(screen)->debug.force_level_surface_view)
 636       view = TRUE;
 637
 638    if (pt->target == PIPE_TEXTURE_3D)
 639       view = TRUE;
 640
 641    if (svga_screen(screen)->debug.no_surface_view)
 642       view = FALSE;
 643
 644    if (view) {
 645       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: yes %p, level %u face %u z %u, %p\n",
 646                pt, level, face, zslice, s);
 647
 648       s->handle = svga_texture_view_surface(NULL, tex, format, level, 1, face, zslice,
 649                                             &s->key);
 650       s->real_face = 0;
 651       s->real_level = 0;
 652       s->real_zslice = 0;
 653    } else {
 654       struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 655
 656       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: no %p, level %u, face %u, z %u, %p\n",
 657                pt, level, face, zslice, s);
 658
 659       sws->surface_reference(sws, &s->handle, tex->handle);
 660       s->real_face = face;
 661       s->real_level = level;
 662       s->real_zslice = zslice;
 663       memset(&s->key, 0, sizeof s->key);
 664    }
 665
 666    return &s->base;
 667 }
 668
 669
 670 static void
 671 svga_tex_surface_destroy(struct pipe_surface *surf)
 672 {
 673    struct svga_surface *s = svga_surface(surf);
 674    struct svga_screen *ss = svga_screen(surf->texture->screen);
 675
 676    SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 677    svga_screen_surface_destroy(ss, &s->key, &s->handle);
 678    pipe_texture_reference(&surf->texture, NULL);
 679    FREE(surf);
 680 }
 681
 682
 683 static INLINE void
 684 svga_mark_surface_dirty(struct pipe_surface *surf)
 685 {
 686    struct svga_surface *s = svga_surface(surf);
 687
 688    if(!s->dirty) {
 689       struct svga_texture *tex = svga_texture(surf->texture);
 690
 691       s->dirty = TRUE;
 692
 693       if (s->handle == tex->handle)
 694          tex->defined[surf->face][surf->level] = TRUE;
 695       else {
 696          /* this will happen later in svga_propagate_surface */
 697       }
 698    }
 699 }
 700
 701
 702 void svga_mark_surfaces_dirty(struct svga_context *svga)
 703 {
 704    unsigned i;
 705
 706    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 707       if (svga->curr.framebuffer.cbufs[i])
 708          svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 709    }
 710    if (svga->curr.framebuffer.zsbuf)
 711       svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 712 }
 713
 714 /**
 715  * Progagate any changes from surfaces to texture.
 716  * pipe is optional context to inline the blit command in.
 717  */
 718 void
 719 svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf)
 720 {
 721    struct svga_surface *s = svga_surface(surf);
 722    struct svga_texture *tex = svga_texture(surf->texture);
 723    struct svga_screen *ss = svga_screen(surf->texture->screen);
 724
 725    if (!s->dirty)
 726       return;
 727
 728    s->dirty = FALSE;
 729    ss->texture_timestamp++;
 730    tex->view_age[surf->level] = ++(tex->age);
 731
 732    if (s->handle != tex->handle) {
 733       SVGA_DBG(DEBUG_VIEWS, "svga: Surface propagate: tex %p, level %u, from %p\n", tex, surf->level, surf);
 734       svga_texture_copy_handle(svga_context(pipe), ss,
 735                                s->handle, 0, 0, 0, s->real_level, s->real_face,
 736                                tex->handle, 0, 0, surf->zslice, surf->level, surf->face,
 737                                tex->base.width[surf->level], tex->base.height[surf->level], 1);
 738       tex->defined[surf->face][surf->level] = TRUE;
 739    }
 740 }
 741
 742 /**
 743  * Check if we should call svga_propagate_surface on the surface.
 744  */
 745 extern boolean
 746 svga_surface_needs_propagation(struct pipe_surface *surf)
 747 {
 748    struct svga_surface *s = svga_surface(surf);
 749    struct svga_texture *tex = svga_texture(surf->texture);
 750
 751    return s->dirty && s->handle != tex->handle;
 752 }
 753
 754
 755 static struct pipe_transfer *
 756 svga_get_tex_transfer(struct pipe_screen *screen,
 757                      struct pipe_texture *texture,
 758                      unsigned face, unsigned level, unsigned zslice,
 759                      enum pipe_transfer_usage usage, unsigned x, unsigned y,
 760                      unsigned w, unsigned h)
 761 {
 762    struct svga_screen *ss = svga_screen(screen);
 763    struct svga_winsys_screen *sws = ss->sws;
 764    struct svga_transfer *st;
 765
 766    /* We can't map texture storage directly */
 767    if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 768       return NULL;
 769
 770    st = CALLOC_STRUCT(svga_transfer);
 771    if (!st)
 772       return NULL;
 773
 774    st->base.format = texture->format;
 775    st->base.block = texture->block;
 776    st->base.x = x;
 777    st->base.y = y;
 778    st->base.width = w;
 779    st->base.height = h;
 780    st->base.nblocksx = pf_get_nblocksx(&texture->block, w);
 781    st->base.nblocksy = pf_get_nblocksy(&texture->block, h);
 782    st->base.stride = st->base.nblocksx*st->base.block.size;
 783    st->base.usage = usage;
 784    st->base.face = face;
 785    st->base.level = level;
 786    st->base.zslice = zslice;
 787
 788    st->hw_nblocksy = st->base.nblocksy;
 789
 790    st->hwbuf = svga_winsys_buffer_create(ss,
 791                                          1,
 792                                          0,
 793                                          st->hw_nblocksy*st->base.stride);
 794    while(!st->hwbuf && (st->hw_nblocksy /= 2)) {
 795       st->hwbuf = svga_winsys_buffer_create(ss,
 796                                             1,
 797                                             0,
 798                                             st->hw_nblocksy*st->base.stride);
 799    }
 800
 801    if(!st->hwbuf)
 802       goto no_hwbuf;
 803
 804    if(st->hw_nblocksy < st->base.nblocksy) {
 805       /* We couldn't allocate a hardware buffer big enough for the transfer,
 806        * so allocate regular malloc memory instead */
 807       debug_printf("%s: failed to allocate %u KB of DMA, splitting into %u x %u KB DMA transfers\n",
 808                    __FUNCTION__,
 809                    (st->base.nblocksy*st->base.stride + 1023)/1024,
 810                    (st->base.nblocksy + st->hw_nblocksy - 1)/st->hw_nblocksy,
 811                    (st->hw_nblocksy*st->base.stride + 1023)/1024);
 812       st->swbuf = MALLOC(st->base.nblocksy*st->base.stride);
 813       if(!st->swbuf)
 814          goto no_swbuf;
 815    }
 816
 817    pipe_texture_reference(&st->base.texture, texture);
 818
 819    if (usage & PIPE_TRANSFER_READ)
 820       svga_transfer_dma(st, SVGA3D_READ_HOST_VRAM);
 821
 822    return &st->base;
 823
 824 no_swbuf:
 825    sws->buffer_destroy(sws, st->hwbuf);
 826 no_hwbuf:
 827    FREE(st);
 828    return NULL;
 829 }
 830
 831
 832 static void *
 833 svga_transfer_map( struct pipe_screen *screen,
 834                    struct pipe_transfer *transfer )
 835 {
 836    struct svga_screen *ss = svga_screen(screen);
 837    struct svga_winsys_screen *sws = ss->sws;
 838    struct svga_transfer *st = svga_transfer(transfer);
 839
 840    if(st->swbuf)
 841       return st->swbuf;
 842    else
 843       /* The wait for read transfers already happened when svga_transfer_dma
 844        * was called. */
 845       return sws->buffer_map(sws, st->hwbuf,
 846                              pipe_transfer_buffer_flags(transfer));
 847 }
 848
 849
 850 static void
 851 svga_transfer_unmap(struct pipe_screen *screen,
 852                     struct pipe_transfer *transfer)
 853 {
 854    struct svga_screen *ss = svga_screen(screen);
 855    struct svga_winsys_screen *sws = ss->sws;
 856    struct svga_transfer *st = svga_transfer(transfer);
 857
 858    if(!st->swbuf)
 859       sws->buffer_unmap(sws, st->hwbuf);
 860 }
 861
 862
 863 static void
 864 svga_tex_transfer_destroy(struct pipe_transfer *transfer)
 865 {
 866    struct svga_texture *tex = svga_texture(transfer->texture);
 867    struct svga_screen *ss = svga_screen(transfer->texture->screen);
 868    struct svga_winsys_screen *sws = ss->sws;
 869    struct svga_transfer *st = svga_transfer(transfer);
 870
 871    if (st->base.usage & PIPE_TRANSFER_WRITE) {
 872       svga_transfer_dma(st, SVGA3D_WRITE_HOST_VRAM);
 873       ss->texture_timestamp++;
 874       tex->view_age[transfer->level] = ++(tex->age);
 875       tex->defined[transfer->face][transfer->level] = TRUE;
 876    }
 877
 878    pipe_texture_reference(&st->base.texture, NULL);
 879    FREE(st->swbuf);
 880    sws->buffer_destroy(sws, st->hwbuf);
 881    FREE(st);
 882 }
 883
 884 void
 885 svga_screen_init_texture_functions(struct pipe_screen *screen)
 886 {
 887    screen->texture_create = svga_texture_create;
 888    screen->texture_destroy = svga_texture_destroy;
 889    screen->get_tex_surface = svga_get_tex_surface;
 890    screen->tex_surface_destroy = svga_tex_surface_destroy;
 891    screen->texture_blanket = svga_texture_blanket;
 892    screen->get_tex_transfer = svga_get_tex_transfer;
 893    screen->transfer_map = svga_transfer_map;
 894    screen->transfer_unmap = svga_transfer_unmap;
 895    screen->tex_transfer_destroy = svga_tex_transfer_destroy;
 896 }
 897
 898 /***********************************************************************
 899  */
 900
 901 struct svga_sampler_view *
 902 svga_get_tex_sampler_view(struct pipe_context *pipe, struct pipe_texture *pt,
 903                           unsigned min_lod, unsigned max_lod)
 904 {
 905    struct svga_screen *ss = svga_screen(pt->screen);
 906    struct svga_winsys_screen *sws = ss->sws;
 907    struct svga_texture *tex = svga_texture(pt);
 908    struct svga_sampler_view *sv = NULL;
 909    SVGA3dSurfaceFormat format = svga_translate_format(pt->format);
 910    boolean view = TRUE;
 911
 912    assert(pt);
 913    assert(min_lod >= 0);
 914    assert(min_lod <= max_lod);
 915    assert(max_lod <= pt->last_level);
 916
 917
 918    /* Is a view needed */
 919    {
 920       /*
 921        * Can't control max lod. For first level views and when we only
 922        * look at one level we disable mip filtering to achive the same
 923        * results as a view.
 924        */
 925       if (min_lod == 0 && max_lod >= pt->last_level)
 926          view = FALSE;
 927
 928       if (pf_is_compressed(pt->format) && view) {
 929          format = svga_translate_format_render(pt->format);
 930       }
 931
 932       if (ss->debug.no_sampler_view)
 933          view = FALSE;
 934
 935       if (ss->debug.force_sampler_view)
 936          view = TRUE;
 937    }
 938
 939    /* First try the cache */
 940    if (view) {
 941       pipe_mutex_lock(ss->tex_mutex);
 942       if (tex->cached_view &&
 943           tex->cached_view->min_lod == min_lod &&
 944           tex->cached_view->max_lod == max_lod) {
 945          svga_sampler_view_reference(&sv, tex->cached_view);
 946          pipe_mutex_unlock(ss->tex_mutex);
 947          SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: reuse %p, %u %u, last %u\n",
 948                               pt, min_lod, max_lod, pt->last_level);
 949          svga_validate_sampler_view(svga_context(pipe), sv);
 950          return sv;
 951       }
 952       pipe_mutex_unlock(ss->tex_mutex);
 953    }
 954
 955    sv = CALLOC_STRUCT(svga_sampler_view);
 956    pipe_reference_init(&sv->reference, 1);
 957    sv->texture = tex;
 958    sv->min_lod = min_lod;
 959    sv->max_lod = max_lod;
 960
 961    /* No view needed just use the whole texture */
 962    if (!view) {
 963       SVGA_DBG(DEBUG_VIEWS,
 964                "svga: Sampler view: no %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
 965                pt, min_lod, max_lod,
 966                max_lod - min_lod + 1,
 967                pt->width[0],
 968                pt->height[0],
 969                pt->depth[0],
 970                pt->last_level);
 971       sws->surface_reference(sws, &sv->handle, tex->handle);
 972       return sv;
 973    }
 974
 975    SVGA_DBG(DEBUG_VIEWS,
 976             "svga: Sampler view: yes %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
 977             pt, min_lod, max_lod,
 978             max_lod - min_lod + 1,
 979             pt->width[0],
 980             pt->height[0],
 981             pt->depth[0],
 982             pt->last_level);
 983
 984    sv->age = tex->age;
 985    sv->handle = svga_texture_view_surface(pipe, tex, format,
 986                                           min_lod,
 987                                           max_lod - min_lod + 1,
 988                                           -1, -1,
 989                                           &sv->key);
 990
 991    if (!sv->handle) {
 992       assert(0);
 993       sws->surface_reference(sws, &sv->handle, tex->handle);
 994       return sv;
 995    }
 996
 997    pipe_mutex_lock(ss->tex_mutex);
 998    svga_sampler_view_reference(&tex->cached_view, sv);
 999    pipe_mutex_unlock(ss->tex_mutex);
1000
1001    return sv;
1002 }
1003
1004 void
1005 svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v)
1006 {
1007    struct svga_texture *tex = v->texture;
1008    unsigned numFaces;
1009    unsigned age = 0;
1010    int i, k;
1011
1012    assert(svga);
1013
1014    if (v->handle == v->texture->handle)
1015       return;
1016
1017    age = tex->age;
1018
1019    if(tex->base.target == PIPE_TEXTURE_CUBE)
1020       numFaces = 6;
1021    else
1022       numFaces = 1;
1023
1024    for (i = v->min_lod; i <= v->max_lod; i++) {
1025       for (k = 0; k < numFaces; k++) {
1026          if (v->age < tex->view_age[i])
1027             svga_texture_copy_handle(svga, NULL,
1028                                      tex->handle, 0, 0, 0, i, k,
1029                                      v->handle, 0, 0, 0, i - v->min_lod, k,
1030                                      tex->base.width[i],
1031                                      tex->base.height[i],
1032                                      tex->base.depth[i]);
1033       }
1034    }
1035
1036    v->age = age;
1037 }
1038
1039 void
1040 svga_destroy_sampler_view_priv(struct svga_sampler_view *v)
1041 {
1042    struct svga_screen *ss = svga_screen(v->texture->base.screen);
1043
1044    SVGA_DBG(DEBUG_DMA, "unref sid %p (sampler view)\n", v->handle);
1045    svga_screen_surface_destroy(ss, &v->key, &v->handle);
1046
1047    FREE(v);
1048 }
1049
1050 boolean
1051 svga_screen_buffer_from_texture(struct pipe_texture *texture,
1052                                 struct pipe_buffer **buffer,
1053                                 unsigned *stride)
1054 {
1055    struct svga_texture *stex = svga_texture(texture);
1056
1057    *buffer = svga_screen_buffer_wrap_surface
1058       (texture->screen,
1059        svga_translate_format(texture->format),
1060        stex->handle);
1061
1062    *stride = pf_get_nblocksx(&texture->block, texture->width[0]) *
1063       texture->block.size;
1064
1065    return *buffer != NULL;
1066 }
1067
1068
1069 struct svga_winsys_surface *
1070 svga_screen_texture_get_winsys_surface(struct pipe_texture *texture)
1071 {
1072    struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
1073    struct svga_winsys_surface *vsurf = NULL;
1074
1075    sws->surface_reference(sws, &vsurf, svga_texture(texture)->handle);
1076    return vsurf;
1077 }