src/gallium/state_trackers/xorg/xorg_exa.c

   1 /*
   2  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  *
  26  * Author: Alan Hourihane <alanh@tungstengraphics.com>
  27  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  28  *
  29  */
  30
  31 #include "xorg_exa.h"
  32 #include "xorg_tracker.h"
  33 #include "xorg_composite.h"
  34 #include "xorg_exa_tgsi.h"
  35
  36 #include <xorg-server.h>
  37 #include <xf86.h>
  38 #include <picturestr.h>
  39 #include <picture.h>
  40
  41 #include "pipe/p_format.h"
  42 #include "pipe/p_context.h"
  43 #include "pipe/p_state.h"
  44 #include "pipe/p_inlines.h"
  45
  46 #include "util/u_rect.h"
  47
  48 #define DEBUG_PRINT 0
  49
  50 /*
  51  * Helper functions
  52  */
  53 struct render_format_str {
  54    int format;
  55    const char *name;
  56 };
  57 static const struct render_format_str formats_info[] =
  58 {
  59    {PICT_a8r8g8b8, "PICT_a8r8g8b8"},
  60    {PICT_x8r8g8b8, "PICT_x8r8g8b8"},
  61    {PICT_a8b8g8r8, "PICT_a8b8g8r8"},
  62    {PICT_x8b8g8r8, "PICT_x8b8g8r8"},
  63 #ifdef PICT_TYPE_BGRA
  64    {PICT_b8g8r8a8, "PICT_b8g8r8a8"},
  65    {PICT_b8g8r8x8, "PICT_b8g8r8x8"},
  66    {PICT_a2r10g10b10, "PICT_a2r10g10b10"},
  67    {PICT_x2r10g10b10, "PICT_x2r10g10b10"},
  68    {PICT_a2b10g10r10, "PICT_a2b10g10r10"},
  69    {PICT_x2b10g10r10, "PICT_x2b10g10r10"},
  70 #endif
  71    {PICT_r8g8b8, "PICT_r8g8b8"},
  72    {PICT_b8g8r8, "PICT_b8g8r8"},
  73    {PICT_r5g6b5, "PICT_r5g6b5"},
  74    {PICT_b5g6r5, "PICT_b5g6r5"},
  75    {PICT_a1r5g5b5, "PICT_a1r5g5b5"},
  76    {PICT_x1r5g5b5, "PICT_x1r5g5b5"},
  77    {PICT_a1b5g5r5, "PICT_a1b5g5r5"},
  78    {PICT_x1b5g5r5, "PICT_x1b5g5r5"},
  79    {PICT_a4r4g4b4, "PICT_a4r4g4b4"},
  80    {PICT_x4r4g4b4, "PICT_x4r4g4b4"},
  81    {PICT_a4b4g4r4, "PICT_a4b4g4r4"},
  82    {PICT_x4b4g4r4, "PICT_x4b4g4r4"},
  83    {PICT_a8, "PICT_a8"},
  84    {PICT_r3g3b2, "PICT_r3g3b2"},
  85    {PICT_b2g3r3, "PICT_b2g3r3"},
  86    {PICT_a2r2g2b2, "PICT_a2r2g2b2"},
  87    {PICT_a2b2g2r2, "PICT_a2b2g2r2"},
  88    {PICT_c8, "PICT_c8"},
  89    {PICT_g8, "PICT_g8"},
  90    {PICT_x4a4, "PICT_x4a4"},
  91    {PICT_x4c4, "PICT_x4c4"},
  92    {PICT_x4g4, "PICT_x4g4"},
  93    {PICT_a4, "PICT_a4"},
  94    {PICT_r1g2b1, "PICT_r1g2b1"},
  95    {PICT_b1g2r1, "PICT_b1g2r1"},
  96    {PICT_a1r1g1b1, "PICT_a1r1g1b1"},
  97    {PICT_a1b1g1r1, "PICT_a1b1g1r1"},
  98    {PICT_c4, "PICT_c4"},
  99    {PICT_g4, "PICT_g4"},
 100    {PICT_a1, "PICT_a1"},
 101    {PICT_g1, "PICT_g1"}
 102 };
 103 static const char *render_format_name(int format)
 104 {
 105    int i = 0;
 106    for (i = 0; i < sizeof(formats_info)/sizeof(formats_info[0]); ++i) {
 107       if (formats_info[i].format == format)
 108          return formats_info[i].name;
 109    }
 110    return NULL;
 111 }
 112
 113 static void
 114 exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp, int *picture_format)
 115 {
 116     switch (depth) {
 117     case 32:
 118         *format = PIPE_FORMAT_A8R8G8B8_UNORM;
 119         *picture_format = PICT_a8r8g8b8;
 120         assert(*bbp == 32);
 121         break;
 122     case 24:
 123         *format = PIPE_FORMAT_X8R8G8B8_UNORM;
 124         *picture_format = PICT_x8r8g8b8;
 125         assert(*bbp == 32);
 126         break;
 127     case 16:
 128         *format = PIPE_FORMAT_R5G6B5_UNORM;
 129         *picture_format = PICT_r5g6b5;
 130         assert(*bbp == 16);
 131         break;
 132     case 15:
 133         *format = PIPE_FORMAT_A1R5G5B5_UNORM;
 134         *picture_format = PICT_x1r5g5b5;
 135         assert(*bbp == 16);
 136         break;
 137     case 8:
 138         *format = PIPE_FORMAT_L8_UNORM;
 139         *picture_format = PICT_a8;
 140         assert(*bbp == 8);
 141         break;
 142     case 4:
 143     case 1:
 144         *format = PIPE_FORMAT_A8R8G8B8_UNORM; /* bad bad bad */
 145         break;
 146     default:
 147         assert(0);
 148         break;
 149     }
 150 }
 151
 152
 153 /*
 154  * Static exported EXA functions
 155  */
 156
 157 static void
 158 ExaWaitMarker(ScreenPtr pScreen, int marker)
 159 {
 160    /* Nothing to do, handled in the PrepareAccess hook */
 161 }
 162
 163 static int
 164 ExaMarkSync(ScreenPtr pScreen)
 165 {
 166    return 1;
 167 }
 168
 169
 170 /***********************************************************************
 171  * Screen upload/download
 172  */
 173
 174 static Bool
 175 ExaDownloadFromScreen(PixmapPtr pPix, int x,  int y, int w,  int h, char *dst,
 176                       int dst_pitch)
 177 {
 178     ScreenPtr pScreen = pPix->drawable.pScreen;
 179     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 180     modesettingPtr ms = modesettingPTR(pScrn);
 181     struct exa_context *exa = ms->exa;
 182     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 183     struct pipe_transfer *transfer;
 184
 185     if (!priv || !priv->tex)
 186         return FALSE;
 187
 188     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 189         PIPE_REFERENCED_FOR_WRITE)
 190         exa->pipe->flush(exa->pipe, 0, NULL);
 191
 192     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 193                                            PIPE_TRANSFER_READ, x, y, w, h);
 194     if (!transfer)
 195         return FALSE;
 196
 197 #if DEBUG_PRINT
 198     debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
 199                  x, y, w, h, dst_pitch);
 200 #endif
 201
 202     util_copy_rect((unsigned char*)dst, &priv->tex->block, dst_pitch, 0, 0,
 203                    w, h, exa->scrn->transfer_map(exa->scrn, transfer),
 204                    transfer->stride, 0, 0);
 205
 206     exa->scrn->transfer_unmap(exa->scrn, transfer);
 207     exa->scrn->tex_transfer_destroy(transfer);
 208
 209     return TRUE;
 210 }
 211
 212 static Bool
 213 ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
 214                   int src_pitch)
 215 {
 216     ScreenPtr pScreen = pPix->drawable.pScreen;
 217     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 218     modesettingPtr ms = modesettingPTR(pScrn);
 219     struct exa_context *exa = ms->exa;
 220     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 221     struct pipe_transfer *transfer;
 222
 223     if (!priv || !priv->tex)
 224         return FALSE;
 225
 226     /* make sure that any pending operations are flushed to hardware */
 227     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 228         (PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE))
 229         xorg_exa_flush(exa, 0, NULL);
 230
 231     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 232                                            PIPE_TRANSFER_WRITE, x, y, w, h);
 233     if (!transfer)
 234         return FALSE;
 235
 236 #if DEBUG_PRINT
 237     debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
 238                  x, y, w, h, src_pitch);
 239 #endif
 240
 241     util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
 242                    &priv->tex->block, transfer->stride, 0, 0, w, h,
 243                    (unsigned char*)src, src_pitch, 0, 0);
 244
 245     exa->scrn->transfer_unmap(exa->scrn, transfer);
 246     exa->scrn->tex_transfer_destroy(transfer);
 247
 248     return TRUE;
 249 }
 250
 251 static Bool
 252 ExaPrepareAccess(PixmapPtr pPix, int index)
 253 {
 254     ScreenPtr pScreen = pPix->drawable.pScreen;
 255     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 256     modesettingPtr ms = modesettingPTR(pScrn);
 257     struct exa_context *exa = ms->exa;
 258     struct exa_pixmap_priv *priv;
 259
 260     priv = exaGetPixmapDriverPrivate(pPix);
 261
 262     if (!priv)
 263         return FALSE;
 264
 265     if (!priv->tex)
 266         return FALSE;
 267
 268     if (priv->map_count == 0)
 269     {
 270         if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 271             PIPE_REFERENCED_FOR_WRITE)
 272             exa->pipe->flush(exa->pipe, 0, NULL);
 273
 274         priv->map_transfer =
 275             exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 276 #ifdef EXA_MIXED_PIXMAPS
 277                                         PIPE_TRANSFER_MAP_DIRECTLY |
 278 #endif
 279                                         PIPE_TRANSFER_READ_WRITE,
 280                                         0, 0, priv->tex->width[0], priv->tex->height[0]);
 281         if (!priv->map_transfer)
 282 #ifdef EXA_MIXED_PIXMAPS
 283             return FALSE;
 284 #else
 285             FatalError("failed to create transfer\n");
 286 #endif
 287
 288         pPix->devPrivate.ptr =
 289             exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
 290         pPix->devKind = priv->map_transfer->stride;
 291     }
 292
 293     priv->map_count++;
 294
 295     return TRUE;
 296 }
 297
 298 static void
 299 ExaFinishAccess(PixmapPtr pPix, int index)
 300 {
 301     ScreenPtr pScreen = pPix->drawable.pScreen;
 302     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 303     modesettingPtr ms = modesettingPTR(pScrn);
 304     struct exa_context *exa = ms->exa;
 305     struct exa_pixmap_priv *priv;
 306     priv = exaGetPixmapDriverPrivate(pPix);
 307
 308     if (!priv)
 309         return;
 310
 311     if (!priv->map_transfer)
 312         return;
 313
 314     if (--priv->map_count == 0) {
 315         assert(priv->map_transfer);
 316         exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
 317         exa->scrn->tex_transfer_destroy(priv->map_transfer);
 318         priv->map_transfer = NULL;
 319         pPix->devPrivate.ptr = NULL;
 320     }
 321 }
 322
 323 /***********************************************************************
 324  * Solid Fills
 325  */
 326
 327 static Bool
 328 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 329 {
 330     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 331     modesettingPtr ms = modesettingPTR(pScrn);
 332     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 333     struct exa_context *exa = ms->exa;
 334
 335 #if DEBUG_PRINT
 336     debug_printf("ExaPrepareSolid(0x%x)\n", fg);
 337 #endif
 338     if (!exa->pipe)
 339         XORG_FALLBACK("accle not enabled");
 340
 341     if (!priv || !priv->tex)
 342         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 343
 344     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 345         XORG_FALLBACK("planeMask is not solid");
 346
 347     if (alu != GXcopy)
 348         XORG_FALLBACK("not GXcopy");
 349
 350     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 351                                         priv->tex->target,
 352                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
 353         XORG_FALLBACK("format %s", pf_name(priv->tex->format));
 354     }
 355
 356     return exa->accel && xorg_solid_bind_state(exa, priv, fg);
 357 }
 358
 359 static void
 360 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 361 {
 362     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 363     modesettingPtr ms = modesettingPTR(pScrn);
 364     struct exa_context *exa = ms->exa;
 365     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 366
 367 #if DEBUG_PRINT
 368     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 369 #endif
 370
 371     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 372 }
 373
 374
 375 static void
 376 ExaDoneSolid(PixmapPtr pPixmap)
 377 {
 378     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 379     modesettingPtr ms = modesettingPTR(pScrn);
 380     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 381     struct exa_context *exa = ms->exa;
 382
 383     if (!priv)
 384         return;
 385
 386     xorg_composite_done(exa);
 387 }
 388
 389 /***********************************************************************
 390  * Copy Blits
 391  */
 392
 393 static Bool
 394 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 395                int ydir, int alu, Pixel planeMask)
 396 {
 397     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 398     modesettingPtr ms = modesettingPTR(pScrn);
 399     struct exa_context *exa = ms->exa;
 400     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 401     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 402
 403 #if DEBUG_PRINT
 404     debug_printf("ExaPrepareCopy\n");
 405 #endif
 406     if (!exa->pipe)
 407         XORG_FALLBACK("accle not enabled");
 408
 409     if (!priv || !priv->tex)
 410         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 411
 412     if (!src_priv || !src_priv->tex)
 413         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 414
 415     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 416         XORG_FALLBACK("planeMask is not solid");
 417
 418     if (alu != GXcopy)
 419         XORG_FALLBACK("alu not GXcopy");
 420
 421     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 422                                         priv->tex->target,
 423                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 424         XORG_FALLBACK("pDst format %s", pf_name(priv->tex->format));
 425
 426     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 427                                         src_priv->tex->target,
 428                                         PIPE_TEXTURE_USAGE_SAMPLER, 0))
 429         XORG_FALLBACK("pSrc format %s", pf_name(src_priv->tex->format));
 430
 431     exa->copy.src = src_priv;
 432     exa->copy.dst = priv;
 433
 434     if (0 && exa->pipe->surface_copy) {
 435        exa->copy.src_surface =
 436           exa->scrn->get_tex_surface( exa->scrn,
 437                                       exa->copy.src->tex,
 438                                       0, 0, 0,
 439                                       PIPE_BUFFER_USAGE_GPU_READ);
 440
 441        exa->copy.dst_surface =
 442           exa->scrn->get_tex_surface( exa->scrn,
 443                                       exa->copy.dst->tex,
 444                                       0, 0, 0,
 445                                       PIPE_BUFFER_USAGE_GPU_WRITE );
 446     }
 447
 448
 449     return exa->accel;
 450 }
 451
 452 static void
 453 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 454         int width, int height)
 455 {
 456    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 457    modesettingPtr ms = modesettingPTR(pScrn);
 458    struct exa_context *exa = ms->exa;
 459    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 460
 461 #if DEBUG_PRINT
 462    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 463                 srcX, srcY, dstX, dstY, width, height);
 464 #endif
 465
 466    debug_assert(priv == exa->copy.dst);
 467
 468    if (exa->copy.src_surface && exa->copy.dst_surface) {
 469       /* XXX: consider exposing >1 box in surface_copy interface.
 470        */
 471       exa->pipe->surface_copy( exa->pipe,
 472                              exa->copy.dst_surface,
 473                              dstX, dstY,
 474                              exa->copy.src_surface,
 475                              srcX, srcY,
 476                              width, height );
 477    }
 478    else {
 479       renderer_copy_pixmap(exa->renderer, exa->copy.dst, dstX, dstY,
 480                            exa->copy.src, srcX, srcY,
 481                            width, height);
 482    }
 483 }
 484
 485 static void
 486 ExaDoneCopy(PixmapPtr pPixmap)
 487 {
 488     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 489     modesettingPtr ms = modesettingPTR(pScrn);
 490     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 491     struct exa_context *exa = ms->exa;
 492
 493     if (!priv)
 494         return;
 495
 496    renderer_draw_flush(exa->renderer);
 497
 498    exa->copy.src = NULL;
 499    exa->copy.dst = NULL;
 500    pipe_surface_reference(&exa->copy.src_surface, NULL);
 501    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 502 }
 503
 504
 505
 506 static Bool
 507 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 508 {
 509    if (pSrc->picture_format == pSrcPicture->format)
 510       return TRUE;
 511
 512    if (pSrc->picture_format != PICT_a8r8g8b8)
 513       return FALSE;
 514
 515    /* pSrc->picture_format == PICT_a8r8g8b8 */
 516    switch (pSrcPicture->format) {
 517    case PICT_a8r8g8b8:
 518    case PICT_x8r8g8b8:
 519    case PICT_a8b8g8r8:
 520    case PICT_x8b8g8r8:
 521    /* just treat these two as x8... */
 522    case PICT_r8g8b8:
 523    case PICT_b8g8r8:
 524       return TRUE;
 525 #ifdef PICT_TYPE_BGRA
 526    case PICT_b8g8r8a8:
 527    case PICT_b8g8r8x8:
 528       return FALSE; /* does not support swizzleing the alpha channel yet */
 529    case PICT_a2r10g10b10:
 530    case PICT_x2r10g10b10:
 531    case PICT_a2b10g10r10:
 532    case PICT_x2b10g10r10:
 533       return FALSE;
 534 #endif
 535    default:
 536       return FALSE;
 537    }
 538    return FALSE;
 539 }
 540
 541 /***********************************************************************
 542  * Composite entrypoints
 543  */
 544
 545 static Bool
 546 ExaCheckComposite(int op,
 547                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 548                   PicturePtr pDstPicture)
 549 {
 550    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 551    modesettingPtr ms = modesettingPTR(pScrn);
 552    struct exa_context *exa = ms->exa;
 553    boolean accelerated = xorg_composite_accelerated(op,
 554                                                     pSrcPicture,
 555                                                     pMaskPicture,
 556                                                     pDstPicture);
 557 #if DEBUG_PRINT
 558    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 559                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 560 #endif
 561    return exa->accel && accelerated;
 562 }
 563
 564
 565 static Bool
 566 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 567                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 568                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 569 {
 570    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 571    modesettingPtr ms = modesettingPTR(pScrn);
 572    struct exa_context *exa = ms->exa;
 573    struct exa_pixmap_priv *priv;
 574
 575 #if DEBUG_PRINT
 576    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 577                 op, pSrcPicture, pMaskPicture, pDstPicture);
 578    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 579                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 580                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 581                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 582 #endif
 583    if (!exa->pipe)
 584       XORG_FALLBACK("accle not enabled");
 585
 586    priv = exaGetPixmapDriverPrivate(pDst);
 587    if (!priv || !priv->tex)
 588       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 589
 590    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 591                                        priv->tex->target,
 592                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 593       XORG_FALLBACK("pDst format: %s", pf_name(priv->tex->format));
 594
 595    if (priv->picture_format != pDstPicture->format)
 596       XORG_FALLBACK("pDst pic_format: %s != %s",
 597                     render_format_name(priv->picture_format),
 598                     render_format_name(pDstPicture->format));
 599
 600    if (pSrc) {
 601       priv = exaGetPixmapDriverPrivate(pSrc);
 602       if (!priv || !priv->tex)
 603          XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
 604
 605       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 606                                           priv->tex->target,
 607                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 608          XORG_FALLBACK("pSrc format: %s", pf_name(priv->tex->format));
 609
 610       if (!picture_check_formats(priv, pSrcPicture))
 611          XORG_FALLBACK("pSrc pic_format: %s != %s",
 612                        render_format_name(priv->picture_format),
 613                        render_format_name(pSrcPicture->format));
 614
 615    }
 616
 617    if (pMask) {
 618       priv = exaGetPixmapDriverPrivate(pMask);
 619       if (!priv || !priv->tex)
 620          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 621
 622       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 623                                           priv->tex->target,
 624                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 625          XORG_FALLBACK("pMask format: %s", pf_name(priv->tex->format));
 626
 627       if (!picture_check_formats(priv, pMaskPicture))
 628          XORG_FALLBACK("pMask pic_format: %s != %s",
 629                        render_format_name(priv->picture_format),
 630                        render_format_name(pMaskPicture->format));
 631    }
 632
 633    return exa->accel &&
 634           xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 635                                     pDstPicture,
 636                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 637                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 638                                     exaGetPixmapDriverPrivate(pDst));
 639 }
 640
 641 static void
 642 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 643              int dstX, int dstY, int width, int height)
 644 {
 645    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 646    modesettingPtr ms = modesettingPTR(pScrn);
 647    struct exa_context *exa = ms->exa;
 648    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 649
 650 #if DEBUG_PRINT
 651    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 652                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 653    debug_printf("\t   Num bound samplers = %d\n",
 654                 exa->num_bound_samplers);
 655 #endif
 656
 657    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 658                   dstX, dstY, width, height);
 659 }
 660
 661
 662
 663 static void
 664 ExaDoneComposite(PixmapPtr pPixmap)
 665 {
 666    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 667    modesettingPtr ms = modesettingPTR(pScrn);
 668    struct exa_context *exa = ms->exa;
 669
 670    xorg_composite_done(exa);
 671 }
 672
 673
 674 /***********************************************************************
 675  * Pixmaps
 676  */
 677
 678 static void *
 679 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 680 {
 681     struct exa_pixmap_priv *priv;
 682
 683     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 684     if (!priv)
 685         return NULL;
 686
 687     return priv;
 688 }
 689
 690 static void
 691 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 692 {
 693     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 694
 695     if (!priv)
 696         return;
 697
 698     pipe_texture_reference(&priv->tex, NULL);
 699
 700     xfree(priv);
 701 }
 702
 703 static Bool
 704 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 705 {
 706     struct exa_pixmap_priv *priv;
 707
 708     priv = exaGetPixmapDriverPrivate(pPixmap);
 709
 710     if (!priv)
 711         return FALSE;
 712
 713     if (priv->tex)
 714         return TRUE;
 715
 716     return FALSE;
 717 }
 718
 719 int
 720 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 721 {
 722     struct exa_pixmap_priv *priv;
 723     priv = exaGetPixmapDriverPrivate(pPixmap);
 724
 725     if (!priv) {
 726         FatalError("NO PIXMAP PRIVATE\n");
 727         return 0;
 728     }
 729
 730     priv->flags |= PIPE_TEXTURE_USAGE_PRIMARY;
 731
 732     return 0;
 733 }
 734
 735 int
 736 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 737 {
 738     struct exa_pixmap_priv *priv;
 739     priv = exaGetPixmapDriverPrivate(pPixmap);
 740
 741     if (!priv) {
 742         FatalError("NO PIXMAP PRIVATE\n");
 743         return 0;
 744     }
 745
 746     priv->flags |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 747
 748     return 0;
 749 }
 750
 751 unsigned
 752 xorg_exa_get_pixmap_handle(PixmapPtr pPixmap, unsigned *stride_out)
 753 {
 754     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 755     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 756     modesettingPtr ms = modesettingPTR(pScrn);
 757     struct exa_pixmap_priv *priv;
 758     unsigned handle;
 759     unsigned stride;
 760
 761     if (!ms->exa) {
 762         FatalError("NO MS->EXA\n");
 763         return 0;
 764     }
 765
 766     priv = exaGetPixmapDriverPrivate(pPixmap);
 767
 768     if (!priv) {
 769         FatalError("NO PIXMAP PRIVATE\n");
 770         return 0;
 771     }
 772
 773     ms->api->local_handle_from_texture(ms->api, ms->screen, priv->tex, &stride, &handle);
 774     if (stride_out)
 775         *stride_out = stride;
 776
 777     return handle;
 778 }
 779
 780 static Bool
 781 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 782                       int depth, int bitsPerPixel, int devKind,
 783                       pointer pPixData)
 784 {
 785     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 786     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 787     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 788     modesettingPtr ms = modesettingPTR(pScrn);
 789     struct exa_context *exa = ms->exa;
 790
 791     if (!priv || pPixData)
 792         return FALSE;
 793
 794     if (depth <= 0)
 795         depth = pPixmap->drawable.depth;
 796
 797     if (bitsPerPixel <= 0)
 798         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 799
 800     if (width <= 0)
 801         width = pPixmap->drawable.width;
 802
 803     if (height <= 0)
 804         height = pPixmap->drawable.height;
 805
 806     if (width <= 0 || height <= 0 || depth <= 0)
 807         return FALSE;
 808
 809     miModifyPixmapHeader(pPixmap, width, height, depth,
 810                              bitsPerPixel, devKind, NULL);
 811
 812     /* Deal with screen resize */
 813     if ((exa->accel || priv->flags) &&
 814         (!priv->tex ||
 815          (priv->tex->width[0] != width ||
 816           priv->tex->height[0] != height ||
 817           priv->tex_flags != priv->flags))) {
 818         struct pipe_texture *texture = NULL;
 819         struct pipe_texture template;
 820
 821         memset(&template, 0, sizeof(template));
 822         template.target = PIPE_TEXTURE_2D;
 823         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 824         pf_get_block(template.format, &template.block);
 825         template.width[0] = width;
 826         template.height[0] = height;
 827         template.depth[0] = 1;
 828         template.last_level = 0;
 829         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 830         priv->tex_flags = priv->flags;
 831         texture = exa->scrn->texture_create(exa->scrn, &template);
 832
 833         if (priv->tex) {
 834             struct pipe_surface *dst_surf;
 835             struct pipe_surface *src_surf;
 836
 837             dst_surf = exa->scrn->get_tex_surface(
 838                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 839             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 840         if (exa->pipe->surface_copy) {
 841             exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 842                         0, 0, min(width, texture->width[0]),
 843                         min(height, texture->height[0]));
 844         } else {
 845             util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 846                         0, 0, min(width, texture->width[0]),
 847                         min(height, texture->height[0]));
 848         }
 849             exa->scrn->tex_surface_destroy(dst_surf);
 850             exa->scrn->tex_surface_destroy(src_surf);
 851         }
 852
 853         pipe_texture_reference(&priv->tex, texture);
 854         /* the texture we create has one reference */
 855         pipe_texture_reference(&texture, NULL);
 856     }
 857
 858     return TRUE;
 859 }
 860
 861 struct pipe_texture *
 862 xorg_exa_get_texture(PixmapPtr pPixmap)
 863 {
 864    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 865    struct pipe_texture *tex = NULL;
 866    pipe_texture_reference(&tex, priv->tex);
 867    return tex;
 868 }
 869
 870 Bool
 871 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 872 {
 873     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 874
 875     int mask = PIPE_TEXTURE_USAGE_PRIMARY | PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 876
 877     if (!priv)
 878         return FALSE;
 879
 880     if (pPixmap->drawable.width != tex->width[0] ||
 881         pPixmap->drawable.height != tex->height[0])
 882         return FALSE;
 883
 884     pipe_texture_reference(&priv->tex, tex);
 885     priv->tex_flags = tex->tex_usage & mask;
 886
 887     return TRUE;
 888 }
 889
 890 struct pipe_texture *
 891 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 892                              int width, int height,
 893                              int depth, int bitsPerPixel)
 894 {
 895     modesettingPtr ms = modesettingPTR(pScrn);
 896     struct exa_context *exa = ms->exa;
 897     struct pipe_texture template;
 898     int dummy;
 899
 900     memset(&template, 0, sizeof(template));
 901     template.target = PIPE_TEXTURE_2D;
 902     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 903     pf_get_block(template.format, &template.block);
 904     template.width[0] = width;
 905     template.height[0] = height;
 906     template.depth[0] = 1;
 907     template.last_level = 0;
 908     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 909     template.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 910     template.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 911
 912     return exa->scrn->texture_create(exa->scrn, &template);
 913 }
 914
 915 void
 916 xorg_exa_close(ScrnInfoPtr pScrn)
 917 {
 918    modesettingPtr ms = modesettingPTR(pScrn);
 919    struct exa_context *exa = ms->exa;
 920
 921    renderer_destroy(exa->renderer);
 922
 923    if (exa->pipe)
 924       exa->pipe->destroy(exa->pipe);
 925
 926    exaDriverFini(pScrn->pScreen);
 927    xfree(exa);
 928    ms->exa = NULL;
 929 }
 930
 931 void *
 932 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
 933 {
 934    modesettingPtr ms = modesettingPTR(pScrn);
 935    struct exa_context *exa;
 936    ExaDriverPtr pExa;
 937
 938    exa = xcalloc(1, sizeof(struct exa_context));
 939    if (!exa)
 940       return NULL;
 941
 942    pExa = exaDriverAlloc();
 943    if (!pExa) {
 944       goto out_err;
 945    }
 946
 947    memset(pExa, 0, sizeof(*pExa));
 948
 949    pExa->exa_major         = 2;
 950    pExa->exa_minor         = 2;
 951    pExa->memoryBase        = 0;
 952    pExa->memorySize        = 0;
 953    pExa->offScreenBase     = 0;
 954    pExa->pixmapOffsetAlign = 0;
 955    pExa->pixmapPitchAlign  = 1;
 956    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
 957 #ifdef EXA_SUPPORTS_PREPARE_AUX
 958    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
 959 #endif
 960 #ifdef EXA_MIXED_PIXMAPS
 961    pExa->flags            |= EXA_MIXED_PIXMAPS;
 962 #endif
 963    pExa->maxX              = 8191; /* FIXME */
 964    pExa->maxY              = 8191; /* FIXME */
 965
 966    pExa->WaitMarker         = ExaWaitMarker;
 967    pExa->MarkSync           = ExaMarkSync;
 968    pExa->PrepareSolid       = ExaPrepareSolid;
 969    pExa->Solid              = ExaSolid;
 970    pExa->DoneSolid          = ExaDoneSolid;
 971    pExa->PrepareCopy        = ExaPrepareCopy;
 972    pExa->Copy               = ExaCopy;
 973    pExa->DoneCopy           = ExaDoneCopy;
 974    pExa->CheckComposite     = ExaCheckComposite;
 975    pExa->PrepareComposite   = ExaPrepareComposite;
 976    pExa->Composite          = ExaComposite;
 977    pExa->DoneComposite      = ExaDoneComposite;
 978    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
 979    pExa->DownloadFromScreen = ExaDownloadFromScreen;
 980    pExa->UploadToScreen     = ExaUploadToScreen;
 981    pExa->PrepareAccess      = ExaPrepareAccess;
 982    pExa->FinishAccess       = ExaFinishAccess;
 983    pExa->CreatePixmap       = ExaCreatePixmap;
 984    pExa->DestroyPixmap      = ExaDestroyPixmap;
 985    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
 986
 987    if (!exaDriverInit(pScrn->pScreen, pExa)) {
 988       goto out_err;
 989    }
 990
 991    exa->scrn = ms->screen;
 992    exa->pipe = ms->api->create_context(ms->api, exa->scrn);
 993    /* Share context with DRI */
 994    ms->ctx = exa->pipe;
 995
 996    exa->renderer = renderer_create(exa->pipe);
 997    exa->accel = accel;
 998
 999    return (void *)exa;
1000
1001 out_err:
1002    xorg_exa_close(pScrn);
1003
1004    return NULL;
1005 }
1006
1007 struct pipe_surface *
1008 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1009 {
1010    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1011                                 PIPE_BUFFER_USAGE_GPU_READ |
1012                                 PIPE_BUFFER_USAGE_GPU_WRITE);
1013
1014 }
1015
1016 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1017                     struct pipe_fence_handle **fence)
1018 {
1019    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1020 }
1021
1022 void xorg_exa_finish(struct exa_context *exa)
1023 {
1024    struct pipe_fence_handle *fence = NULL;
1025
1026    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1027
1028    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1029    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1030 }
1031