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    tex->key.cachable = 1;
 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_DISPLAY_TARGET) {
 315       tex->key.cachable = 0;
 316    }
 317
 318    if(templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY) {
 319       tex->key.flags |= SVGA3D_SURFACE_HINT_SCANOUT;
 320       tex->key.cachable = 0;
 321    }
 322
 323    /*
 324     * XXX: Never pass the SVGA3D_SURFACE_HINT_RENDERTARGET hint. Mesa cannot
 325     * know beforehand whether a texture will be used as a rendertarget or not
 326     * and it always requests PIPE_TEXTURE_USAGE_RENDER_TARGET, therefore
 327     * passing the SVGA3D_SURFACE_HINT_RENDERTARGET here defeats its purpose.
 328     */
 329 #if 0
 330    if((templat->tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) &&
 331       !util_format_is_compressed(templat->format))
 332       tex->key.flags |= SVGA3D_SURFACE_HINT_RENDERTARGET;
 333 #endif
 334
 335    if(templat->tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 336       tex->key.flags |= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
 337
 338    tex->key.numMipLevels = templat->last_level + 1;
 339
 340    tex->key.format = svga_translate_format(templat->format);
 341    if(tex->key.format == SVGA3D_FORMAT_INVALID)
 342       goto error2;
 343
 344    SVGA_DBG(DEBUG_DMA, "surface_create for texture\n", tex->handle);
 345    tex->handle = svga_screen_surface_create(svgascreen, &tex->key);
 346    if (tex->handle)
 347       SVGA_DBG(DEBUG_DMA, "  --> got sid %p (texture)\n", tex->handle);
 348
 349    return &tex->base;
 350
 351 error2:
 352    FREE(tex);
 353 error1:
 354    return NULL;
 355 }
 356
 357
 358 static struct pipe_texture *
 359 svga_texture_blanket(struct pipe_screen * screen,
 360                      const struct pipe_texture *base,
 361                      const unsigned *stride,
 362                      struct pipe_buffer *buffer)
 363 {
 364    struct svga_texture *tex;
 365    struct svga_buffer *sbuf = svga_buffer(buffer);
 366    struct svga_winsys_screen *sws = svga_winsys_screen(screen);
 367    assert(screen);
 368
 369    /* Only supports one type */
 370    if (base->target != PIPE_TEXTURE_2D ||
 371        base->last_level != 0 ||
 372        base->depth0 != 1) {
 373       return NULL;
 374    }
 375
 376    /**
 377     * We currently can't do texture blanket on
 378     * SVGA3D_BUFFER. Need to blit to a temporary surface?
 379     */
 380
 381    assert(sbuf->handle);
 382    if (!sbuf->handle)
 383       return NULL;
 384
 385    if (svga_translate_format(base->format) != sbuf->key.format) {
 386       unsigned f1 = svga_translate_format(base->format);
 387       unsigned f2 = sbuf->key.format;
 388
 389       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 390       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 391               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 392               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 393          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 394          return NULL;
 395       }
 396    }
 397
 398    tex = CALLOC_STRUCT(svga_texture);
 399    if (!tex)
 400       return NULL;
 401
 402    tex->base = *base;
 403
 404
 405    if (sbuf->key.format == 1)
 406       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 407    else if (sbuf->key.format == 2)
 408       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 409
 410    pipe_reference_init(&tex->base.reference, 1);
 411    tex->base.screen = screen;
 412
 413    SVGA_DBG(DEBUG_DMA, "blanket sid %p\n", sbuf->handle);
 414
 415    /* We don't own this storage, so don't try to cache it.
 416     */
 417    assert(sbuf->key.cachable == 0);
 418    tex->key.cachable = 0;
 419    sws->surface_reference(sws, &tex->handle, sbuf->handle);
 420
 421    return &tex->base;
 422 }
 423
 424
 425 struct pipe_texture *
 426 svga_screen_texture_wrap_surface(struct pipe_screen *screen,
 427                                  struct pipe_texture *base,
 428                                  enum SVGA3dSurfaceFormat format,
 429                                  struct svga_winsys_surface *srf)
 430 {
 431    struct svga_texture *tex;
 432    assert(screen);
 433
 434    /* Only supports one type */
 435    if (base->target != PIPE_TEXTURE_2D ||
 436        base->last_level != 0 ||
 437        base->depth0 != 1) {
 438       return NULL;
 439    }
 440
 441    if (!srf)
 442       return NULL;
 443
 444    if (svga_translate_format(base->format) != format) {
 445       unsigned f1 = svga_translate_format(base->format);
 446       unsigned f2 = format;
 447
 448       /* It's okay for XRGB and ARGB or depth with/out stencil to get mixed up */
 449       if ( !( (f1 == SVGA3D_X8R8G8B8 && f2 == SVGA3D_A8R8G8B8) ||
 450               (f1 == SVGA3D_A8R8G8B8 && f2 == SVGA3D_X8R8G8B8) ||
 451               (f1 == SVGA3D_Z_D24X8 && f2 == SVGA3D_Z_D24S8) ) ) {
 452          debug_printf("%s wrong format %u != %u\n", __FUNCTION__, f1, f2);
 453          return NULL;
 454       }
 455    }
 456
 457    tex = CALLOC_STRUCT(svga_texture);
 458    if (!tex)
 459       return NULL;
 460
 461    tex->base = *base;
 462
 463
 464    if (format == 1)
 465       tex->base.format = PIPE_FORMAT_X8R8G8B8_UNORM;
 466    else if (format == 2)
 467       tex->base.format = PIPE_FORMAT_A8R8G8B8_UNORM;
 468
 469    pipe_reference_init(&tex->base.reference, 1);
 470    tex->base.screen = screen;
 471
 472    SVGA_DBG(DEBUG_DMA, "wrap surface sid %p\n", srf);
 473
 474    tex->key.cachable = 0;
 475    tex->handle = srf;
 476
 477    return &tex->base;
 478 }
 479
 480
 481 static void
 482 svga_texture_destroy(struct pipe_texture *pt)
 483 {
 484    struct svga_screen *ss = svga_screen(pt->screen);
 485    struct svga_texture *tex = (struct svga_texture *)pt;
 486
 487    ss->texture_timestamp++;
 488
 489    svga_sampler_view_reference(&tex->cached_view, NULL);
 490
 491    /*
 492      DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
 493    */
 494    SVGA_DBG(DEBUG_DMA, "unref sid %p (texture)\n", tex->handle);
 495    svga_screen_surface_destroy(ss, &tex->key, &tex->handle);
 496
 497    FREE(tex);
 498 }
 499
 500
 501 static void
 502 svga_texture_copy_handle(struct svga_context *svga,
 503                          struct svga_screen *ss,
 504                          struct svga_winsys_surface *src_handle,
 505                          unsigned src_x, unsigned src_y, unsigned src_z,
 506                          unsigned src_level, unsigned src_face,
 507                          struct svga_winsys_surface *dst_handle,
 508                          unsigned dst_x, unsigned dst_y, unsigned dst_z,
 509                          unsigned dst_level, unsigned dst_face,
 510                          unsigned width, unsigned height, unsigned depth)
 511 {
 512    struct svga_surface dst, src;
 513    enum pipe_error ret;
 514    SVGA3dCopyBox box, *boxes;
 515
 516    assert(svga || ss);
 517
 518    src.handle = src_handle;
 519    src.real_level = src_level;
 520    src.real_face = src_face;
 521    src.real_zslice = 0;
 522
 523    dst.handle = dst_handle;
 524    dst.real_level = dst_level;
 525    dst.real_face = dst_face;
 526    dst.real_zslice = 0;
 527
 528    box.x = dst_x;
 529    box.y = dst_y;
 530    box.z = dst_z;
 531    box.w = width;
 532    box.h = height;
 533    box.d = depth;
 534    box.srcx = src_x;
 535    box.srcy = src_y;
 536    box.srcz = src_z;
 537
 538 /*
 539    SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
 540             src_handle, src_level, src_x, src_y, src_z,
 541             dst_handle, dst_level, dst_x, dst_y, dst_z);
 542 */
 543
 544    if (svga) {
 545       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 546                                     &src.base,
 547                                     &dst.base,
 548                                     &boxes, 1);
 549       if(ret != PIPE_OK) {
 550          svga_context_flush(svga, NULL);
 551          ret = SVGA3D_BeginSurfaceCopy(svga->swc,
 552                                        &src.base,
 553                                        &dst.base,
 554                                        &boxes, 1);
 555          assert(ret == PIPE_OK);
 556       }
 557       *boxes = box;
 558       SVGA_FIFOCommitAll(svga->swc);
 559    } else {
 560       pipe_mutex_lock(ss->swc_mutex);
 561       ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 562                                     &src.base,
 563                                     &dst.base,
 564                                     &boxes, 1);
 565       if(ret != PIPE_OK) {
 566          ss->swc->flush(ss->swc, NULL);
 567          ret = SVGA3D_BeginSurfaceCopy(ss->swc,
 568                                        &src.base,
 569                                        &dst.base,
 570                                        &boxes, 1);
 571          assert(ret == PIPE_OK);
 572       }
 573       *boxes = box;
 574       SVGA_FIFOCommitAll(ss->swc);
 575       pipe_mutex_unlock(ss->swc_mutex);
 576    }
 577 }
 578
 579 static struct svga_winsys_surface *
 580 svga_texture_view_surface(struct pipe_context *pipe,
 581                           struct svga_texture *tex,
 582                           SVGA3dSurfaceFormat format,
 583                           unsigned start_mip,
 584                           unsigned num_mip,
 585                           int face_pick,
 586                           int zslice_pick,
 587                           struct svga_host_surface_cache_key *key) /* OUT */
 588 {
 589    struct svga_screen *ss = svga_screen(tex->base.screen);
 590    struct svga_winsys_surface *handle;
 591    uint32_t i, j;
 592    unsigned z_offset = 0;
 593
 594    SVGA_DBG(DEBUG_PERF,
 595             "svga: Create surface view: face %d zslice %d mips %d..%d\n",
 596             face_pick, zslice_pick, start_mip, start_mip+num_mip-1);
 597
 598    key->flags = 0;
 599    key->format = format;
 600    key->numMipLevels = num_mip;
 601    key->size.width = u_minify(tex->base.width0, start_mip);
 602    key->size.height = u_minify(tex->base.height0, start_mip);
 603    key->size.depth = zslice_pick < 0 ? u_minify(tex->base.depth0, start_mip) : 1;
 604    key->cachable = 1;
 605    assert(key->size.depth == 1);
 606
 607    if(tex->base.target == PIPE_TEXTURE_CUBE && face_pick < 0) {
 608       key->flags |= SVGA3D_SURFACE_CUBEMAP;
 609       key->numFaces = 6;
 610    } else {
 611       key->numFaces = 1;
 612    }
 613
 614    if(key->format == SVGA3D_FORMAT_INVALID) {
 615       key->cachable = 0;
 616       return NULL;
 617    }
 618
 619    SVGA_DBG(DEBUG_DMA, "surface_create for texture view\n");
 620    handle = svga_screen_surface_create(ss, key);
 621    if (!handle) {
 622       key->cachable = 0;
 623       return NULL;
 624    }
 625
 626    SVGA_DBG(DEBUG_DMA, " --> got sid %p (texture view)\n", handle);
 627
 628    if (face_pick < 0)
 629       face_pick = 0;
 630
 631    if (zslice_pick >= 0)
 632        z_offset = zslice_pick;
 633
 634    for (i = 0; i < key->numMipLevels; i++) {
 635       for (j = 0; j < key->numFaces; j++) {
 636          if(tex->defined[j + face_pick][i + start_mip]) {
 637             unsigned depth = (zslice_pick < 0 ?
 638                               u_minify(tex->base.depth0, i + start_mip) :
 639                               1);
 640
 641             svga_texture_copy_handle(svga_context(pipe),
 642                                      ss,
 643                                      tex->handle,
 644                                      0, 0, z_offset,
 645                                      i + start_mip,
 646                                      j + face_pick,
 647                                      handle, 0, 0, 0, i, j,
 648                                      u_minify(tex->base.width0, i + start_mip),
 649                                      u_minify(tex->base.height0, i + start_mip),
 650                                      depth);
 651          }
 652       }
 653    }
 654
 655    return handle;
 656 }
 657
 658
 659 static struct pipe_surface *
 660 svga_get_tex_surface(struct pipe_screen *screen,
 661                      struct pipe_texture *pt,
 662                      unsigned face, unsigned level, unsigned zslice,
 663                      unsigned flags)
 664 {
 665    struct svga_texture *tex = svga_texture(pt);
 666    struct svga_surface *s;
 667    boolean render = flags & PIPE_BUFFER_USAGE_GPU_WRITE ? TRUE : FALSE;
 668    boolean view = FALSE;
 669    SVGA3dSurfaceFormat format;
 670
 671    s = CALLOC_STRUCT(svga_surface);
 672    if (!s)
 673       return NULL;
 674
 675    pipe_reference_init(&s->base.reference, 1);
 676    pipe_texture_reference(&s->base.texture, pt);
 677    s->base.format = pt->format;
 678    s->base.width = u_minify(pt->width0, level);
 679    s->base.height = u_minify(pt->height0, level);
 680    s->base.usage = flags;
 681    s->base.level = level;
 682    s->base.face = face;
 683    s->base.zslice = zslice;
 684
 685    if (!render)
 686       format = svga_translate_format(pt->format);
 687    else
 688       format = svga_translate_format_render(pt->format);
 689
 690    assert(format != SVGA3D_FORMAT_INVALID);
 691    assert(!(flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE));
 692
 693
 694    if (svga_screen(screen)->debug.force_surface_view)
 695       view = TRUE;
 696
 697    /* Currently only used for compressed textures */
 698    if (render &&
 699        format != svga_translate_format(pt->format)) {
 700       view = TRUE;
 701    }
 702
 703    if (level != 0 &&
 704        svga_screen(screen)->debug.force_level_surface_view)
 705       view = TRUE;
 706
 707    if (pt->target == PIPE_TEXTURE_3D)
 708       view = TRUE;
 709
 710    if (svga_screen(screen)->debug.no_surface_view)
 711       view = FALSE;
 712
 713    if (view) {
 714       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: yes %p, level %u face %u z %u, %p\n",
 715                pt, level, face, zslice, s);
 716
 717       s->handle = svga_texture_view_surface(NULL, tex, format, level, 1, face, zslice,
 718                                             &s->key);
 719       s->real_face = 0;
 720       s->real_level = 0;
 721       s->real_zslice = 0;
 722    } else {
 723       SVGA_DBG(DEBUG_VIEWS, "svga: Surface view: no %p, level %u, face %u, z %u, %p\n",
 724                pt, level, face, zslice, s);
 725
 726       memset(&s->key, 0, sizeof s->key);
 727       s->handle = tex->handle;
 728       s->real_face = face;
 729       s->real_level = level;
 730       s->real_zslice = zslice;
 731    }
 732
 733    return &s->base;
 734 }
 735
 736
 737 static void
 738 svga_tex_surface_destroy(struct pipe_surface *surf)
 739 {
 740    struct svga_surface *s = svga_surface(surf);
 741    struct svga_texture *t = svga_texture(surf->texture);
 742    struct svga_screen *ss = svga_screen(surf->texture->screen);
 743
 744    if(s->handle != t->handle) {
 745       SVGA_DBG(DEBUG_DMA, "unref sid %p (tex surface)\n", s->handle);
 746       svga_screen_surface_destroy(ss, &s->key, &s->handle);
 747    }
 748
 749    pipe_texture_reference(&surf->texture, NULL);
 750    FREE(surf);
 751 }
 752
 753
 754 static INLINE void
 755 svga_mark_surface_dirty(struct pipe_surface *surf)
 756 {
 757    struct svga_surface *s = svga_surface(surf);
 758
 759    if(!s->dirty) {
 760       struct svga_texture *tex = svga_texture(surf->texture);
 761
 762       s->dirty = TRUE;
 763
 764       if (s->handle == tex->handle)
 765          tex->defined[surf->face][surf->level] = TRUE;
 766       else {
 767          /* this will happen later in svga_propagate_surface */
 768       }
 769    }
 770 }
 771
 772
 773 void svga_mark_surfaces_dirty(struct svga_context *svga)
 774 {
 775    unsigned i;
 776
 777    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 778       if (svga->curr.framebuffer.cbufs[i])
 779          svga_mark_surface_dirty(svga->curr.framebuffer.cbufs[i]);
 780    }
 781    if (svga->curr.framebuffer.zsbuf)
 782       svga_mark_surface_dirty(svga->curr.framebuffer.zsbuf);
 783 }
 784
 785 /**
 786  * Progagate any changes from surfaces to texture.
 787  * pipe is optional context to inline the blit command in.
 788  */
 789 void
 790 svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf)
 791 {
 792    struct svga_surface *s = svga_surface(surf);
 793    struct svga_texture *tex = svga_texture(surf->texture);
 794    struct svga_screen *ss = svga_screen(surf->texture->screen);
 795
 796    if (!s->dirty)
 797       return;
 798
 799    s->dirty = FALSE;
 800    ss->texture_timestamp++;
 801    tex->view_age[surf->level] = ++(tex->age);
 802
 803    if (s->handle != tex->handle) {
 804       SVGA_DBG(DEBUG_VIEWS, "svga: Surface propagate: tex %p, level %u, from %p\n", tex, surf->level, surf);
 805       svga_texture_copy_handle(svga_context(pipe), ss,
 806                                s->handle, 0, 0, 0, s->real_level, s->real_face,
 807                                tex->handle, 0, 0, surf->zslice, surf->level, surf->face,
 808                                u_minify(tex->base.width0, surf->level),
 809                                u_minify(tex->base.height0, surf->level), 1);
 810       tex->defined[surf->face][surf->level] = TRUE;
 811    }
 812 }
 813
 814 /**
 815  * Check if we should call svga_propagate_surface on the surface.
 816  */
 817 extern boolean
 818 svga_surface_needs_propagation(struct pipe_surface *surf)
 819 {
 820    struct svga_surface *s = svga_surface(surf);
 821    struct svga_texture *tex = svga_texture(surf->texture);
 822
 823    return s->dirty && s->handle != tex->handle;
 824 }
 825
 826
 827 static struct pipe_transfer *
 828 svga_get_tex_transfer(struct pipe_screen *screen,
 829                      struct pipe_texture *texture,
 830                      unsigned face, unsigned level, unsigned zslice,
 831                      enum pipe_transfer_usage usage, unsigned x, unsigned y,
 832                      unsigned w, unsigned h)
 833 {
 834    struct svga_screen *ss = svga_screen(screen);
 835    struct svga_winsys_screen *sws = ss->sws;
 836    struct svga_transfer *st;
 837    unsigned nblocksx = util_format_get_nblocksx(texture->format, w);
 838    unsigned nblocksy = util_format_get_nblocksy(texture->format, h);
 839
 840    /* We can't map texture storage directly */
 841    if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 842       return NULL;
 843
 844    st = CALLOC_STRUCT(svga_transfer);
 845    if (!st)
 846       return NULL;
 847
 848    st->base.x = x;
 849    st->base.y = y;
 850    st->base.width = w;
 851    st->base.height = h;
 852    st->base.stride = nblocksx*util_format_get_blocksize(texture->format);
 853    st->base.usage = usage;
 854    st->base.face = face;
 855    st->base.level = level;
 856    st->base.zslice = zslice;
 857
 858    st->hw_nblocksy = nblocksy;
 859
 860    st->hwbuf = svga_winsys_buffer_create(ss,
 861                                          1,
 862                                          0,
 863                                          st->hw_nblocksy*st->base.stride);
 864    while(!st->hwbuf && (st->hw_nblocksy /= 2)) {
 865       st->hwbuf = svga_winsys_buffer_create(ss,
 866                                             1,
 867                                             0,
 868                                             st->hw_nblocksy*st->base.stride);
 869    }
 870
 871    if(!st->hwbuf)
 872       goto no_hwbuf;
 873
 874    if(st->hw_nblocksy < nblocksy) {
 875       /* We couldn't allocate a hardware buffer big enough for the transfer,
 876        * so allocate regular malloc memory instead */
 877       debug_printf("%s: failed to allocate %u KB of DMA, splitting into %u x %u KB DMA transfers\n",
 878                    __FUNCTION__,
 879                    (nblocksy*st->base.stride + 1023)/1024,
 880                    (nblocksy + st->hw_nblocksy - 1)/st->hw_nblocksy,
 881                    (st->hw_nblocksy*st->base.stride + 1023)/1024);
 882       st->swbuf = MALLOC(nblocksy*st->base.stride);
 883       if(!st->swbuf)
 884          goto no_swbuf;
 885    }
 886
 887    pipe_texture_reference(&st->base.texture, texture);
 888
 889    if (usage & PIPE_TRANSFER_READ)
 890       svga_transfer_dma(st, SVGA3D_READ_HOST_VRAM);
 891
 892    return &st->base;
 893
 894 no_swbuf:
 895    sws->buffer_destroy(sws, st->hwbuf);
 896 no_hwbuf:
 897    FREE(st);
 898    return NULL;
 899 }
 900
 901
 902 static void *
 903 svga_transfer_map( struct pipe_screen *screen,
 904                    struct pipe_transfer *transfer )
 905 {
 906    struct svga_screen *ss = svga_screen(screen);
 907    struct svga_winsys_screen *sws = ss->sws;
 908    struct svga_transfer *st = svga_transfer(transfer);
 909
 910    if(st->swbuf)
 911       return st->swbuf;
 912    else
 913       /* The wait for read transfers already happened when svga_transfer_dma
 914        * was called. */
 915       return sws->buffer_map(sws, st->hwbuf,
 916                              pipe_transfer_buffer_flags(transfer));
 917 }
 918
 919
 920 static void
 921 svga_transfer_unmap(struct pipe_screen *screen,
 922                     struct pipe_transfer *transfer)
 923 {
 924    struct svga_screen *ss = svga_screen(screen);
 925    struct svga_winsys_screen *sws = ss->sws;
 926    struct svga_transfer *st = svga_transfer(transfer);
 927
 928    if(!st->swbuf)
 929       sws->buffer_unmap(sws, st->hwbuf);
 930 }
 931
 932
 933 static void
 934 svga_tex_transfer_destroy(struct pipe_transfer *transfer)
 935 {
 936    struct svga_texture *tex = svga_texture(transfer->texture);
 937    struct svga_screen *ss = svga_screen(transfer->texture->screen);
 938    struct svga_winsys_screen *sws = ss->sws;
 939    struct svga_transfer *st = svga_transfer(transfer);
 940
 941    if (st->base.usage & PIPE_TRANSFER_WRITE) {
 942       svga_transfer_dma(st, SVGA3D_WRITE_HOST_VRAM);
 943       ss->texture_timestamp++;
 944       tex->view_age[transfer->level] = ++(tex->age);
 945       tex->defined[transfer->face][transfer->level] = TRUE;
 946    }
 947
 948    pipe_texture_reference(&st->base.texture, NULL);
 949    FREE(st->swbuf);
 950    sws->buffer_destroy(sws, st->hwbuf);
 951    FREE(st);
 952 }
 953
 954 void
 955 svga_screen_init_texture_functions(struct pipe_screen *screen)
 956 {
 957    screen->texture_create = svga_texture_create;
 958    screen->texture_destroy = svga_texture_destroy;
 959    screen->get_tex_surface = svga_get_tex_surface;
 960    screen->tex_surface_destroy = svga_tex_surface_destroy;
 961    screen->texture_blanket = svga_texture_blanket;
 962    screen->get_tex_transfer = svga_get_tex_transfer;
 963    screen->transfer_map = svga_transfer_map;
 964    screen->transfer_unmap = svga_transfer_unmap;
 965    screen->tex_transfer_destroy = svga_tex_transfer_destroy;
 966 }
 967
 968 /***********************************************************************
 969  */
 970
 971 struct svga_sampler_view *
 972 svga_get_tex_sampler_view(struct pipe_context *pipe, struct pipe_texture *pt,
 973                           unsigned min_lod, unsigned max_lod)
 974 {
 975    struct svga_screen *ss = svga_screen(pt->screen);
 976    struct svga_texture *tex = svga_texture(pt);
 977    struct svga_sampler_view *sv = NULL;
 978    SVGA3dSurfaceFormat format = svga_translate_format(pt->format);
 979    boolean view = TRUE;
 980
 981    assert(pt);
 982    assert(min_lod >= 0);
 983    assert(min_lod <= max_lod);
 984    assert(max_lod <= pt->last_level);
 985
 986
 987    /* Is a view needed */
 988    {
 989       /*
 990        * Can't control max lod. For first level views and when we only
 991        * look at one level we disable mip filtering to achive the same
 992        * results as a view.
 993        */
 994       if (min_lod == 0 && max_lod >= pt->last_level)
 995          view = FALSE;
 996
 997       if (util_format_is_compressed(pt->format) && view) {
 998          format = svga_translate_format_render(pt->format);
 999       }
1000
1001       if (ss->debug.no_sampler_view)
1002          view = FALSE;
1003
1004       if (ss->debug.force_sampler_view)
1005          view = TRUE;
1006    }
1007
1008    /* First try the cache */
1009    if (view) {
1010       pipe_mutex_lock(ss->tex_mutex);
1011       if (tex->cached_view &&
1012           tex->cached_view->min_lod == min_lod &&
1013           tex->cached_view->max_lod == max_lod) {
1014          svga_sampler_view_reference(&sv, tex->cached_view);
1015          pipe_mutex_unlock(ss->tex_mutex);
1016          SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: reuse %p, %u %u, last %u\n",
1017                               pt, min_lod, max_lod, pt->last_level);
1018          svga_validate_sampler_view(svga_context(pipe), sv);
1019          return sv;
1020       }
1021       pipe_mutex_unlock(ss->tex_mutex);
1022    }
1023
1024    sv = CALLOC_STRUCT(svga_sampler_view);
1025    pipe_reference_init(&sv->reference, 1);
1026    pipe_texture_reference(&sv->texture, pt);
1027    sv->min_lod = min_lod;
1028    sv->max_lod = max_lod;
1029
1030    /* No view needed just use the whole texture */
1031    if (!view) {
1032       SVGA_DBG(DEBUG_VIEWS,
1033                "svga: Sampler view: no %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
1034                pt, min_lod, max_lod,
1035                max_lod - min_lod + 1,
1036                pt->width0,
1037                pt->height0,
1038                pt->depth0,
1039                pt->last_level);
1040       sv->key.cachable = 0;
1041       sv->handle = tex->handle;
1042       return sv;
1043    }
1044
1045    SVGA_DBG(DEBUG_VIEWS,
1046             "svga: Sampler view: yes %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n",
1047             pt, min_lod, max_lod,
1048             max_lod - min_lod + 1,
1049             pt->width0,
1050             pt->height0,
1051             pt->depth0,
1052             pt->last_level);
1053
1054    sv->age = tex->age;
1055    sv->handle = svga_texture_view_surface(pipe, tex, format,
1056                                           min_lod,
1057                                           max_lod - min_lod + 1,
1058                                           -1, -1,
1059                                           &sv->key);
1060
1061    if (!sv->handle) {
1062       assert(0);
1063       sv->key.cachable = 0;
1064       sv->handle = tex->handle;
1065       return sv;
1066    }
1067
1068    pipe_mutex_lock(ss->tex_mutex);
1069    svga_sampler_view_reference(&tex->cached_view, sv);
1070    pipe_mutex_unlock(ss->tex_mutex);
1071
1072    return sv;
1073 }
1074
1075 void
1076 svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v)
1077 {
1078    struct svga_texture *tex = svga_texture(v->texture);
1079    unsigned numFaces;
1080    unsigned age = 0;
1081    int i, k;
1082
1083    assert(svga);
1084
1085    if (v->handle == tex->handle)
1086       return;
1087
1088    age = tex->age;
1089
1090    if(tex->base.target == PIPE_TEXTURE_CUBE)
1091       numFaces = 6;
1092    else
1093       numFaces = 1;
1094
1095    for (i = v->min_lod; i <= v->max_lod; i++) {
1096       for (k = 0; k < numFaces; k++) {
1097          if (v->age < tex->view_age[i])
1098             svga_texture_copy_handle(svga, NULL,
1099                                      tex->handle, 0, 0, 0, i, k,
1100                                      v->handle, 0, 0, 0, i - v->min_lod, k,
1101                                      u_minify(tex->base.width0, i),
1102                                      u_minify(tex->base.height0, i),
1103                                      u_minify(tex->base.depth0, i));
1104       }
1105    }
1106
1107    v->age = age;
1108 }
1109
1110 void
1111 svga_destroy_sampler_view_priv(struct svga_sampler_view *v)
1112 {
1113    struct svga_texture *tex = svga_texture(v->texture);
1114
1115    if(v->handle != tex->handle) {
1116       struct svga_screen *ss = svga_screen(v->texture->screen);
1117       SVGA_DBG(DEBUG_DMA, "unref sid %p (sampler view)\n", v->handle);
1118       svga_screen_surface_destroy(ss, &v->key, &v->handle);
1119    }
1120    pipe_texture_reference(&v->texture, NULL);
1121    FREE(v);
1122 }
1123
1124 boolean
1125 svga_screen_buffer_from_texture(struct pipe_texture *texture,
1126                                 struct pipe_buffer **buffer,
1127                                 unsigned *stride)
1128 {
1129    struct svga_texture *stex = svga_texture(texture);
1130
1131    *buffer = svga_screen_buffer_wrap_surface
1132       (texture->screen,
1133        svga_translate_format(texture->format),
1134        stex->handle);
1135
1136    *stride = util_format_get_stride(texture->format, texture->width0);
1137
1138    return *buffer != NULL;
1139 }
1140
1141
1142 struct svga_winsys_surface *
1143 svga_screen_texture_get_winsys_surface(struct pipe_texture *texture)
1144 {
1145    struct svga_winsys_screen *sws = svga_winsys_screen(texture->screen);
1146    struct svga_winsys_surface *vsurf = NULL;
1147
1148    assert(svga_texture(texture)->key.cachable == 0);
1149    svga_texture(texture)->key.cachable = 0;
1150    sws->surface_reference(sws, &vsurf, svga_texture(texture)->handle);
1151    return vsurf;
1152 }