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
  45 #include "util/u_rect.h"
  46 #include "util/u_math.h"
  47 #include "util/u_debug.h"
  48 #include "util/u_format.h"
  49
  50 #define DEBUG_PRINT 0
  51 #define ROUND_UP_TEXTURES 1
  52
  53 /*
  54  * Helper functions
  55  */
  56 struct render_format_str {
  57    int format;
  58    const char *name;
  59 };
  60 static const struct render_format_str formats_info[] =
  61 {
  62    {PICT_a8r8g8b8, "PICT_a8r8g8b8"},
  63    {PICT_x8r8g8b8, "PICT_x8r8g8b8"},
  64    {PICT_a8b8g8r8, "PICT_a8b8g8r8"},
  65    {PICT_x8b8g8r8, "PICT_x8b8g8r8"},
  66 #ifdef PICT_TYPE_BGRA
  67    {PICT_b8g8r8a8, "PICT_b8g8r8a8"},
  68    {PICT_b8g8r8x8, "PICT_b8g8r8x8"},
  69    {PICT_a2r10g10b10, "PICT_a2r10g10b10"},
  70    {PICT_x2r10g10b10, "PICT_x2r10g10b10"},
  71    {PICT_a2b10g10r10, "PICT_a2b10g10r10"},
  72    {PICT_x2b10g10r10, "PICT_x2b10g10r10"},
  73 #endif
  74    {PICT_r8g8b8, "PICT_r8g8b8"},
  75    {PICT_b8g8r8, "PICT_b8g8r8"},
  76    {PICT_r5g6b5, "PICT_r5g6b5"},
  77    {PICT_b5g6r5, "PICT_b5g6r5"},
  78    {PICT_a1r5g5b5, "PICT_a1r5g5b5"},
  79    {PICT_x1r5g5b5, "PICT_x1r5g5b5"},
  80    {PICT_a1b5g5r5, "PICT_a1b5g5r5"},
  81    {PICT_x1b5g5r5, "PICT_x1b5g5r5"},
  82    {PICT_a4r4g4b4, "PICT_a4r4g4b4"},
  83    {PICT_x4r4g4b4, "PICT_x4r4g4b4"},
  84    {PICT_a4b4g4r4, "PICT_a4b4g4r4"},
  85    {PICT_x4b4g4r4, "PICT_x4b4g4r4"},
  86    {PICT_a8, "PICT_a8"},
  87    {PICT_r3g3b2, "PICT_r3g3b2"},
  88    {PICT_b2g3r3, "PICT_b2g3r3"},
  89    {PICT_a2r2g2b2, "PICT_a2r2g2b2"},
  90    {PICT_a2b2g2r2, "PICT_a2b2g2r2"},
  91    {PICT_c8, "PICT_c8"},
  92    {PICT_g8, "PICT_g8"},
  93    {PICT_x4a4, "PICT_x4a4"},
  94    {PICT_x4c4, "PICT_x4c4"},
  95    {PICT_x4g4, "PICT_x4g4"},
  96    {PICT_a4, "PICT_a4"},
  97    {PICT_r1g2b1, "PICT_r1g2b1"},
  98    {PICT_b1g2r1, "PICT_b1g2r1"},
  99    {PICT_a1r1g1b1, "PICT_a1r1g1b1"},
 100    {PICT_a1b1g1r1, "PICT_a1b1g1r1"},
 101    {PICT_c4, "PICT_c4"},
 102    {PICT_g4, "PICT_g4"},
 103    {PICT_a1, "PICT_a1"},
 104    {PICT_g1, "PICT_g1"}
 105 };
 106 static const char *render_format_name(int format)
 107 {
 108    int i = 0;
 109    for (i = 0; i < sizeof(formats_info)/sizeof(formats_info[0]); ++i) {
 110       if (formats_info[i].format == format)
 111          return formats_info[i].name;
 112    }
 113    return NULL;
 114 }
 115
 116 static void
 117 exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp, int *picture_format)
 118 {
 119     switch (depth) {
 120     case 32:
 121         *format = PIPE_FORMAT_B8G8R8A8_UNORM;
 122         *picture_format = PICT_a8r8g8b8;
 123         assert(*bbp == 32);
 124         break;
 125     case 24:
 126         *format = PIPE_FORMAT_B8G8R8X8_UNORM;
 127         *picture_format = PICT_x8r8g8b8;
 128         assert(*bbp == 32);
 129         break;
 130     case 16:
 131         *format = PIPE_FORMAT_B5G6R5_UNORM;
 132         *picture_format = PICT_r5g6b5;
 133         assert(*bbp == 16);
 134         break;
 135     case 15:
 136         *format = PIPE_FORMAT_B5G5R5A1_UNORM;
 137         *picture_format = PICT_x1r5g5b5;
 138         assert(*bbp == 16);
 139         break;
 140     case 8:
 141         *format = PIPE_FORMAT_L8_UNORM;
 142         *picture_format = PICT_a8;
 143         assert(*bbp == 8);
 144         break;
 145     case 4:
 146     case 1:
 147         *format = PIPE_FORMAT_B8G8R8A8_UNORM; /* bad bad bad */
 148         break;
 149     default:
 150         assert(0);
 151         break;
 152     }
 153 }
 154
 155
 156 /*
 157  * Static exported EXA functions
 158  */
 159
 160 static void
 161 ExaWaitMarker(ScreenPtr pScreen, int marker)
 162 {
 163    /* Nothing to do, handled in the PrepareAccess hook */
 164 }
 165
 166 static int
 167 ExaMarkSync(ScreenPtr pScreen)
 168 {
 169    return 1;
 170 }
 171
 172
 173 /***********************************************************************
 174  * Screen upload/download
 175  */
 176
 177 static Bool
 178 ExaDownloadFromScreen(PixmapPtr pPix, int x,  int y, int w,  int h, char *dst,
 179                       int dst_pitch)
 180 {
 181     ScreenPtr pScreen = pPix->drawable.pScreen;
 182     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 183     modesettingPtr ms = modesettingPTR(pScrn);
 184     struct exa_context *exa = ms->exa;
 185     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 186     struct pipe_transfer *transfer;
 187
 188     if (!priv || !priv->tex)
 189         return FALSE;
 190
 191     transfer = pipe_get_transfer(exa->pipe, priv->tex, 0, 0, 0,
 192                                            PIPE_TRANSFER_READ, x, y, w, h);
 193     if (!transfer)
 194         return FALSE;
 195
 196 #if DEBUG_PRINT
 197     debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
 198                  x, y, w, h, dst_pitch);
 199 #endif
 200
 201     util_copy_rect((unsigned char*)dst, priv->tex->format, dst_pitch, 0, 0,
 202                    w, h, exa->pipe->transfer_map(exa->pipe, transfer),
 203                    transfer->stride, 0, 0);
 204
 205     exa->pipe->transfer_unmap(exa->pipe, transfer);
 206     exa->pipe->transfer_destroy(exa->pipe, transfer);
 207
 208     return TRUE;
 209 }
 210
 211 static Bool
 212 ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
 213                   int src_pitch)
 214 {
 215     ScreenPtr pScreen = pPix->drawable.pScreen;
 216     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 217     modesettingPtr ms = modesettingPTR(pScrn);
 218     struct exa_context *exa = ms->exa;
 219     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 220     struct pipe_transfer *transfer;
 221
 222     if (!priv || !priv->tex)
 223         return FALSE;
 224
 225     transfer = pipe_get_transfer(exa->pipe, priv->tex, 0, 0, 0,
 226                                            PIPE_TRANSFER_WRITE, x, y, w, h);
 227     if (!transfer)
 228         return FALSE;
 229
 230 #if DEBUG_PRINT
 231     debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
 232                  x, y, w, h, src_pitch);
 233 #endif
 234
 235     util_copy_rect(exa->pipe->transfer_map(exa->pipe, transfer),
 236                    priv->tex->format, transfer->stride, 0, 0, w, h,
 237                    (unsigned char*)src, src_pitch, 0, 0);
 238
 239     exa->pipe->transfer_unmap(exa->pipe, transfer);
 240     exa->pipe->transfer_destroy(exa->pipe, transfer);
 241
 242     return TRUE;
 243 }
 244
 245 static Bool
 246 ExaPrepareAccess(PixmapPtr pPix, int index)
 247 {
 248     ScreenPtr pScreen = pPix->drawable.pScreen;
 249     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 250     modesettingPtr ms = modesettingPTR(pScrn);
 251     struct exa_context *exa = ms->exa;
 252     struct exa_pixmap_priv *priv;
 253
 254     priv = exaGetPixmapDriverPrivate(pPix);
 255
 256     if (!priv)
 257         return FALSE;
 258
 259     if (!priv->tex)
 260         return FALSE;
 261
 262     if (priv->map_count == 0)
 263     {
 264         assert(pPix->drawable.width <= priv->tex->width0);
 265         assert(pPix->drawable.height <= priv->tex->height0);
 266
 267         priv->map_transfer =
 268            pipe_get_transfer(exa->pipe, priv->tex, 0, 0, 0,
 269 #ifdef EXA_MIXED_PIXMAPS
 270                                         PIPE_TRANSFER_MAP_DIRECTLY |
 271 #endif
 272                                         PIPE_TRANSFER_READ_WRITE,
 273                                         0, 0,
 274                                         pPix->drawable.width,
 275                                         pPix->drawable.height );
 276         if (!priv->map_transfer)
 277 #ifdef EXA_MIXED_PIXMAPS
 278             return FALSE;
 279 #else
 280             FatalError("failed to create transfer\n");
 281 #endif
 282
 283         pPix->devPrivate.ptr =
 284             exa->pipe->transfer_map(exa->pipe, priv->map_transfer);
 285         pPix->devKind = priv->map_transfer->stride;
 286     }
 287
 288     priv->map_count++;
 289
 290     return TRUE;
 291 }
 292
 293 static void
 294 ExaFinishAccess(PixmapPtr pPix, int index)
 295 {
 296     ScreenPtr pScreen = pPix->drawable.pScreen;
 297     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 298     modesettingPtr ms = modesettingPTR(pScrn);
 299     struct exa_context *exa = ms->exa;
 300     struct exa_pixmap_priv *priv;
 301     priv = exaGetPixmapDriverPrivate(pPix);
 302
 303     if (!priv)
 304         return;
 305
 306     if (!priv->map_transfer)
 307         return;
 308
 309     if (--priv->map_count == 0) {
 310         assert(priv->map_transfer);
 311         exa->pipe->transfer_unmap(exa->pipe, priv->map_transfer);
 312         exa->pipe->transfer_destroy(exa->pipe, priv->map_transfer);
 313         priv->map_transfer = NULL;
 314         pPix->devPrivate.ptr = NULL;
 315     }
 316 }
 317
 318 /***********************************************************************
 319  * Solid Fills
 320  */
 321
 322 static Bool
 323 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 324 {
 325     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 326     modesettingPtr ms = modesettingPTR(pScrn);
 327     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 328     struct exa_context *exa = ms->exa;
 329
 330 #if DEBUG_PRINT
 331     debug_printf("ExaPrepareSolid(0x%x)\n", fg);
 332 #endif
 333     if (!exa->accel)
 334         return FALSE;
 335
 336     if (!exa->pipe)
 337         XORG_FALLBACK("accle not enabled");
 338
 339     if (!priv || !priv->tex)
 340         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 341
 342     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 343         XORG_FALLBACK("planeMask is not solid");
 344
 345     if (alu != GXcopy)
 346         XORG_FALLBACK("not GXcopy");
 347
 348     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 349                                         priv->tex->target, 0,
 350                                         PIPE_BIND_RENDER_TARGET, 0)) {
 351         XORG_FALLBACK("format %s", util_format_name(priv->tex->format));
 352     }
 353
 354     return xorg_solid_bind_state(exa, priv, fg);
 355 }
 356
 357 static void
 358 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 359 {
 360     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 361     modesettingPtr ms = modesettingPTR(pScrn);
 362     struct exa_context *exa = ms->exa;
 363     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 364
 365 #if DEBUG_PRINT
 366     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 367 #endif
 368
 369     if (x0 == 0 && y0 == 0 &&
 370         x1 == pPixmap->drawable.width && y1 == pPixmap->drawable.height) {
 371        exa->pipe->clear(exa->pipe, PIPE_CLEAR_COLOR, exa->solid_color, 0.0, 0);
 372        return;
 373     }
 374
 375     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 376 }
 377
 378
 379 static void
 380 ExaDoneSolid(PixmapPtr pPixmap)
 381 {
 382     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 383     modesettingPtr ms = modesettingPTR(pScrn);
 384     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 385     struct exa_context *exa = ms->exa;
 386
 387     if (!priv)
 388         return;
 389
 390     xorg_composite_done(exa);
 391 }
 392
 393 /***********************************************************************
 394  * Copy Blits
 395  */
 396
 397 static Bool
 398 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 399                int ydir, int alu, Pixel planeMask)
 400 {
 401     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 402     modesettingPtr ms = modesettingPTR(pScrn);
 403     struct exa_context *exa = ms->exa;
 404     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 405     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 406
 407 #if DEBUG_PRINT
 408     debug_printf("ExaPrepareCopy\n");
 409 #endif
 410
 411     if (!exa->accel)
 412         return FALSE;
 413
 414     if (!exa->pipe)
 415         XORG_FALLBACK("accle not enabled");
 416
 417     if (!priv || !priv->tex)
 418         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 419
 420     if (!src_priv || !src_priv->tex)
 421         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 422
 423     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 424         XORG_FALLBACK("planeMask is not solid");
 425
 426     if (alu != GXcopy)
 427         XORG_FALLBACK("alu not GXcopy");
 428
 429     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 430                                         priv->tex->target, 0,
 431                                         PIPE_BIND_RENDER_TARGET, 0))
 432         XORG_FALLBACK("pDst format %s", util_format_name(priv->tex->format));
 433
 434     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 435                                         src_priv->tex->target, 0,
 436                                         PIPE_BIND_SAMPLER_VIEW, 0))
 437         XORG_FALLBACK("pSrc format %s", util_format_name(src_priv->tex->format));
 438
 439     exa->copy.src = src_priv;
 440     exa->copy.dst = priv;
 441
 442     /* XXX this used to use resource_copy_region for same-surface copies,
 443      * but they were redefined to not allow overlaps (some of the util code
 444      * always assumed this anyway).
 445      * Drivers should implement accelerated resource_copy_region or it will
 446      * be slow - disable for now.
 447      */
 448     if (0 && exa->copy.src != exa->copy.dst) {
 449        exa->copy.use_surface_copy = TRUE;
 450     }
 451     else {
 452        exa->copy.use_surface_copy = FALSE;
 453
 454        if (exa->copy.dst == exa->copy.src)
 455           exa->copy.src_texture = renderer_clone_texture( exa->renderer,
 456                                                           exa->copy.src->tex );
 457        else
 458           pipe_resource_reference(&exa->copy.src_texture,
 459                                  exa->copy.src->tex);
 460
 461        exa->copy.dst_surface =
 462           exa->scrn->get_tex_surface(exa->scrn,
 463                                      exa->copy.dst->tex,
 464                                      0, 0, 0,
 465                                      PIPE_BIND_RENDER_TARGET);
 466
 467
 468        renderer_copy_prepare(exa->renderer,
 469                              exa->copy.dst_surface,
 470                              exa->copy.src_texture );
 471     }
 472
 473
 474     return TRUE;
 475 }
 476
 477 static void
 478 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 479         int width, int height)
 480 {
 481    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 482    modesettingPtr ms = modesettingPTR(pScrn);
 483    struct exa_context *exa = ms->exa;
 484    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 485
 486 #if DEBUG_PRINT
 487    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 488                 srcX, srcY, dstX, dstY, width, height);
 489 #endif
 490
 491    debug_assert(priv == exa->copy.dst);
 492    (void) priv;
 493
 494    if (exa->copy.use_surface_copy) {
 495       struct pipe_subresource subdst, subsrc;
 496       subdst.face = 0;
 497       subdst.level = 0;
 498       subsrc.face = 0;
 499       subsrc.level = 0;
 500       exa->pipe->resource_copy_region( exa->pipe,
 501                                        exa->copy.dst->tex,
 502                                        subdst,
 503                                        dstX, dstY, 0,
 504                                        exa->copy.src->tex,
 505                                        subsrc,
 506                                        srcX, srcY, 0,
 507                                        width, height );
 508    }
 509    else {
 510       renderer_copy_pixmap(exa->renderer,
 511                            dstX, dstY,
 512                            srcX, srcY,
 513                            width, height,
 514                            exa->copy.src_texture->width0,
 515                            exa->copy.src_texture->height0);
 516    }
 517 }
 518
 519 static void
 520 ExaDoneCopy(PixmapPtr pPixmap)
 521 {
 522     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 523     modesettingPtr ms = modesettingPTR(pScrn);
 524     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 525     struct exa_context *exa = ms->exa;
 526
 527     if (!priv)
 528         return;
 529
 530    renderer_draw_flush(exa->renderer);
 531
 532    exa->copy.src = NULL;
 533    exa->copy.dst = NULL;
 534    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 535    pipe_resource_reference(&exa->copy.src_texture, NULL);
 536 }
 537
 538
 539
 540 static Bool
 541 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 542 {
 543    if (pSrc->picture_format == pSrcPicture->format)
 544       return TRUE;
 545
 546    if (pSrc->picture_format != PICT_a8r8g8b8)
 547       return FALSE;
 548
 549    /* pSrc->picture_format == PICT_a8r8g8b8 */
 550    switch (pSrcPicture->format) {
 551    case PICT_a8r8g8b8:
 552    case PICT_x8r8g8b8:
 553    case PICT_a8b8g8r8:
 554    case PICT_x8b8g8r8:
 555    /* just treat these two as x8... */
 556    case PICT_r8g8b8:
 557    case PICT_b8g8r8:
 558       return TRUE;
 559 #ifdef PICT_TYPE_BGRA
 560    case PICT_b8g8r8a8:
 561    case PICT_b8g8r8x8:
 562       return FALSE; /* does not support swizzleing the alpha channel yet */
 563    case PICT_a2r10g10b10:
 564    case PICT_x2r10g10b10:
 565    case PICT_a2b10g10r10:
 566    case PICT_x2b10g10r10:
 567       return FALSE;
 568 #endif
 569    default:
 570       return FALSE;
 571    }
 572    return FALSE;
 573 }
 574
 575 /***********************************************************************
 576  * Composite entrypoints
 577  */
 578
 579 static Bool
 580 ExaCheckComposite(int op,
 581                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 582                   PicturePtr pDstPicture)
 583 {
 584    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 585    modesettingPtr ms = modesettingPTR(pScrn);
 586    struct exa_context *exa = ms->exa;
 587
 588 #if DEBUG_PRINT
 589    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 590                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 591 #endif
 592
 593    if (!exa->accel)
 594        return FALSE;
 595
 596    return xorg_composite_accelerated(op,
 597                                      pSrcPicture,
 598                                      pMaskPicture,
 599                                      pDstPicture);
 600 }
 601
 602
 603 static Bool
 604 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 605                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 606                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 607 {
 608    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 609    modesettingPtr ms = modesettingPTR(pScrn);
 610    struct exa_context *exa = ms->exa;
 611    struct exa_pixmap_priv *priv;
 612
 613    if (!exa->accel)
 614        return FALSE;
 615
 616 #if DEBUG_PRINT
 617    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 618                 op, pSrcPicture, pMaskPicture, pDstPicture);
 619    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 620                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 621                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 622                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 623 #endif
 624    if (!exa->pipe)
 625       XORG_FALLBACK("accle not enabled");
 626
 627    priv = exaGetPixmapDriverPrivate(pDst);
 628    if (!priv || !priv->tex)
 629       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 630
 631    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 632                                        priv->tex->target, 0,
 633                                        PIPE_BIND_RENDER_TARGET, 0))
 634       XORG_FALLBACK("pDst format: %s", util_format_name(priv->tex->format));
 635
 636    if (priv->picture_format != pDstPicture->format)
 637       XORG_FALLBACK("pDst pic_format: %s != %s",
 638                     render_format_name(priv->picture_format),
 639                     render_format_name(pDstPicture->format));
 640
 641    if (pSrc) {
 642       priv = exaGetPixmapDriverPrivate(pSrc);
 643       if (!priv || !priv->tex)
 644          XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
 645
 646       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 647                                           priv->tex->target, 0,
 648                                           PIPE_BIND_SAMPLER_VIEW, 0))
 649          XORG_FALLBACK("pSrc format: %s", util_format_name(priv->tex->format));
 650
 651       if (!picture_check_formats(priv, pSrcPicture))
 652          XORG_FALLBACK("pSrc pic_format: %s != %s",
 653                        render_format_name(priv->picture_format),
 654                        render_format_name(pSrcPicture->format));
 655
 656    }
 657
 658    if (pMask) {
 659       priv = exaGetPixmapDriverPrivate(pMask);
 660       if (!priv || !priv->tex)
 661          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 662
 663       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 664                                           priv->tex->target, 0,
 665                                           PIPE_BIND_SAMPLER_VIEW, 0))
 666          XORG_FALLBACK("pMask format: %s", util_format_name(priv->tex->format));
 667
 668       if (!picture_check_formats(priv, pMaskPicture))
 669          XORG_FALLBACK("pMask pic_format: %s != %s",
 670                        render_format_name(priv->picture_format),
 671                        render_format_name(pMaskPicture->format));
 672    }
 673
 674    return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 675                                     pDstPicture,
 676                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 677                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 678                                     exaGetPixmapDriverPrivate(pDst));
 679 }
 680
 681 static void
 682 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 683              int dstX, int dstY, int width, int height)
 684 {
 685    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 686    modesettingPtr ms = modesettingPTR(pScrn);
 687    struct exa_context *exa = ms->exa;
 688    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 689
 690 #if DEBUG_PRINT
 691    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 692                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 693    debug_printf("\t   Num bound samplers = %d\n",
 694                 exa->num_bound_samplers);
 695 #endif
 696
 697    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 698                   dstX, dstY, width, height);
 699 }
 700
 701
 702
 703 static void
 704 ExaDoneComposite(PixmapPtr pPixmap)
 705 {
 706    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 707    modesettingPtr ms = modesettingPTR(pScrn);
 708    struct exa_context *exa = ms->exa;
 709
 710    xorg_composite_done(exa);
 711 }
 712
 713
 714 /***********************************************************************
 715  * Pixmaps
 716  */
 717
 718 static void *
 719 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 720 {
 721     struct exa_pixmap_priv *priv;
 722
 723     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 724     if (!priv)
 725         return NULL;
 726
 727     return priv;
 728 }
 729
 730 static void
 731 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 732 {
 733     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 734
 735     if (!priv)
 736         return;
 737
 738     pipe_resource_reference(&priv->tex, NULL);
 739
 740     xfree(priv);
 741 }
 742
 743 static Bool
 744 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 745 {
 746     struct exa_pixmap_priv *priv;
 747
 748     priv = exaGetPixmapDriverPrivate(pPixmap);
 749
 750     if (!priv)
 751         return FALSE;
 752
 753     if (priv->tex)
 754         return TRUE;
 755
 756     return FALSE;
 757 }
 758
 759 int
 760 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 761 {
 762     struct exa_pixmap_priv *priv;
 763     priv = exaGetPixmapDriverPrivate(pPixmap);
 764
 765     if (!priv) {
 766         FatalError("NO PIXMAP PRIVATE\n");
 767         return 0;
 768     }
 769
 770     priv->flags |= PIPE_BIND_SCANOUT;
 771
 772     return 0;
 773 }
 774
 775 int
 776 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 777 {
 778     struct exa_pixmap_priv *priv;
 779     priv = exaGetPixmapDriverPrivate(pPixmap);
 780
 781     if (!priv) {
 782         FatalError("NO PIXMAP PRIVATE\n");
 783         return 0;
 784     }
 785
 786     priv->flags |= PIPE_BIND_SHARED;
 787
 788     return 0;
 789 }
 790
 791
 792
 793 static Bool
 794 size_match( int width, int tex_width )
 795 {
 796 #if ROUND_UP_TEXTURES
 797    if (width > tex_width)
 798       return FALSE;
 799
 800    if (width * 2 < tex_width)
 801       return FALSE;
 802
 803    return TRUE;
 804 #else
 805    return width == tex_width;
 806 #endif
 807 }
 808
 809 static Bool
 810 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 811                       int depth, int bitsPerPixel, int devKind,
 812                       pointer pPixData)
 813 {
 814     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 815     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 816     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 817     modesettingPtr ms = modesettingPTR(pScrn);
 818     struct exa_context *exa = ms->exa;
 819
 820     if (!priv || pPixData)
 821         return FALSE;
 822
 823     if (0) {
 824        debug_printf("%s pixmap %p sz %dx%dx%d devKind %d\n",
 825                     __FUNCTION__, pPixmap, width, height, bitsPerPixel, devKind);
 826
 827        if (priv->tex)
 828           debug_printf("  ==> old texture %dx%d\n",
 829                        priv->tex->width0,
 830                        priv->tex->height0);
 831     }
 832
 833
 834     if (depth <= 0)
 835         depth = pPixmap->drawable.depth;
 836
 837     if (bitsPerPixel <= 0)
 838         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 839
 840     if (width <= 0)
 841         width = pPixmap->drawable.width;
 842
 843     if (height <= 0)
 844         height = pPixmap->drawable.height;
 845
 846     if (width <= 0 || height <= 0 || depth <= 0)
 847         return FALSE;
 848
 849     miModifyPixmapHeader(pPixmap, width, height, depth,
 850                              bitsPerPixel, devKind, NULL);
 851
 852     priv->width = width;
 853     priv->height = height;
 854
 855     /* Deal with screen resize */
 856     if ((exa->accel || priv->flags) &&
 857         (!priv->tex ||
 858          !size_match(width, priv->tex->width0) ||
 859          !size_match(height, priv->tex->height0) ||
 860          priv->tex_flags != priv->flags)) {
 861         struct pipe_resource *texture = NULL;
 862         struct pipe_resource template;
 863
 864         memset(&template, 0, sizeof(template));
 865         template.target = PIPE_TEXTURE_2D;
 866         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 867         if (ROUND_UP_TEXTURES && priv->flags == 0) {
 868            template.width0 = util_next_power_of_two(width);
 869            template.height0 = util_next_power_of_two(height);
 870         }
 871         else {
 872            template.width0 = width;
 873            template.height0 = height;
 874         }
 875
 876         template.depth0 = 1;
 877         template.last_level = 0;
 878         template.bind = PIPE_BIND_RENDER_TARGET | priv->flags;
 879         priv->tex_flags = priv->flags;
 880         texture = exa->scrn->resource_create(exa->scrn, &template);
 881
 882         if (priv->tex) {
 883             struct pipe_subresource subdst, subsrc;
 884
 885             subdst.face = 0;
 886             subdst.level = 0;
 887             subsrc.face = 0;
 888             subsrc.level = 0;
 889             exa->pipe->resource_copy_region(exa->pipe, texture,
 890                                             subdst, 0, 0, 0,
 891                                             priv->tex,
 892                                             subsrc, 0, 0, 0,
 893                                             min(width, texture->width0),
 894                                             min(height, texture->height0));
 895         }
 896
 897         pipe_resource_reference(&priv->tex, texture);
 898         /* the texture we create has one reference */
 899         pipe_resource_reference(&texture, NULL);
 900     }
 901
 902     return TRUE;
 903 }
 904
 905 struct pipe_resource *
 906 xorg_exa_get_texture(PixmapPtr pPixmap)
 907 {
 908    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 909    struct pipe_resource *tex = NULL;
 910    pipe_resource_reference(&tex, priv->tex);
 911    return tex;
 912 }
 913
 914 Bool
 915 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_resource *tex)
 916 {
 917     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 918
 919     int mask = PIPE_BIND_SHARED | PIPE_BIND_SCANOUT;
 920
 921     if (!priv)
 922         return FALSE;
 923
 924     if (pPixmap->drawable.width != tex->width0 ||
 925         pPixmap->drawable.height != tex->height0)
 926         return FALSE;
 927
 928     pipe_resource_reference(&priv->tex, tex);
 929     priv->tex_flags = tex->bind & mask;
 930
 931     return TRUE;
 932 }
 933
 934 struct pipe_resource *
 935 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 936                              int width, int height,
 937                              int depth, int bitsPerPixel)
 938 {
 939     modesettingPtr ms = modesettingPTR(pScrn);
 940     struct exa_context *exa = ms->exa;
 941     struct pipe_resource template;
 942     int dummy;
 943
 944     memset(&template, 0, sizeof(template));
 945     template.target = PIPE_TEXTURE_2D;
 946     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 947     template.width0 = width;
 948     template.height0 = height;
 949     template.depth0 = 1;
 950     template.last_level = 0;
 951     template.bind |= PIPE_BIND_RENDER_TARGET;
 952     template.bind |= PIPE_BIND_SCANOUT;
 953     template.bind |= PIPE_BIND_SHARED;
 954
 955     return exa->scrn->resource_create(exa->scrn, &template);
 956 }
 957
 958 void
 959 xorg_exa_close(ScrnInfoPtr pScrn)
 960 {
 961    modesettingPtr ms = modesettingPTR(pScrn);
 962    struct exa_context *exa = ms->exa;
 963
 964    pipe_sampler_view_reference(&exa->bound_sampler_views[0], NULL);
 965    pipe_sampler_view_reference(&exa->bound_sampler_views[1], NULL);
 966
 967    renderer_destroy(exa->renderer);
 968
 969    xorg_exa_finish(exa);
 970
 971    if (exa->pipe)
 972       exa->pipe->destroy(exa->pipe);
 973    exa->pipe = NULL;
 974    /* Since this was shared be proper with the pointer */
 975    ms->ctx = NULL;
 976
 977    exaDriverFini(pScrn->pScreen);
 978    xfree(exa);
 979    ms->exa = NULL;
 980 }
 981
 982 void *
 983 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
 984 {
 985    modesettingPtr ms = modesettingPTR(pScrn);
 986    struct exa_context *exa;
 987    ExaDriverPtr pExa;
 988    CustomizerPtr cust = ms->cust;
 989
 990    exa = xcalloc(1, sizeof(struct exa_context));
 991    if (!exa)
 992       return NULL;
 993
 994    pExa = exaDriverAlloc();
 995    if (!pExa) {
 996       goto out_err;
 997    }
 998
 999    memset(pExa, 0, sizeof(*pExa));
1000
1001    pExa->exa_major         = 2;
1002    pExa->exa_minor         = 2;
1003    pExa->memoryBase        = 0;
1004    pExa->memorySize        = 0;
1005    pExa->offScreenBase     = 0;
1006    pExa->pixmapOffsetAlign = 0;
1007    pExa->pixmapPitchAlign  = 1;
1008    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
1009 #ifdef EXA_SUPPORTS_PREPARE_AUX
1010    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
1011 #endif
1012 #ifdef EXA_MIXED_PIXMAPS
1013    pExa->flags            |= EXA_MIXED_PIXMAPS;
1014 #endif
1015    pExa->maxX              = 8191; /* FIXME */
1016    pExa->maxY              = 8191; /* FIXME */
1017
1018    pExa->WaitMarker         = ExaWaitMarker;
1019    pExa->MarkSync           = ExaMarkSync;
1020    pExa->PrepareSolid       = ExaPrepareSolid;
1021    pExa->Solid              = ExaSolid;
1022    pExa->DoneSolid          = ExaDoneSolid;
1023    pExa->PrepareCopy        = ExaPrepareCopy;
1024    pExa->Copy               = ExaCopy;
1025    pExa->DoneCopy           = ExaDoneCopy;
1026    pExa->CheckComposite     = ExaCheckComposite;
1027    pExa->PrepareComposite   = ExaPrepareComposite;
1028    pExa->Composite          = ExaComposite;
1029    pExa->DoneComposite      = ExaDoneComposite;
1030    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1031    pExa->DownloadFromScreen = ExaDownloadFromScreen;
1032    pExa->UploadToScreen     = ExaUploadToScreen;
1033    pExa->PrepareAccess      = ExaPrepareAccess;
1034    pExa->FinishAccess       = ExaFinishAccess;
1035    pExa->CreatePixmap       = ExaCreatePixmap;
1036    pExa->DestroyPixmap      = ExaDestroyPixmap;
1037    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1038
1039    if (!exaDriverInit(pScrn->pScreen, pExa)) {
1040       goto out_err;
1041    }
1042
1043    exa->scrn = ms->screen;
1044    exa->pipe = exa->scrn->context_create(exa->scrn, NULL);
1045    if (exa->pipe == NULL)
1046       goto out_err;
1047
1048    /* Share context with DRI */
1049    ms->ctx = exa->pipe;
1050    if (cust && cust->winsys_context_throttle)
1051        cust->winsys_context_throttle(cust, ms->ctx, THROTTLE_RENDER);
1052
1053    exa->renderer = renderer_create(exa->pipe);
1054    exa->accel = accel;
1055
1056    return (void *)exa;
1057
1058 out_err:
1059    xorg_exa_close(pScrn);
1060
1061    return NULL;
1062 }
1063
1064 struct pipe_surface *
1065 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1066 {
1067    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1068                                 PIPE_BIND_RENDER_TARGET);
1069
1070 }
1071
1072 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1073                     struct pipe_fence_handle **fence)
1074 {
1075    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1076 }
1077
1078 void xorg_exa_finish(struct exa_context *exa)
1079 {
1080    struct pipe_fence_handle *fence = NULL;
1081
1082    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1083
1084    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1085    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1086 }
1087