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 = exa->pipe->get_tex_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->tex_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 = exa->pipe->get_tex_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->tex_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             exa->pipe->get_tex_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->tex_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,
 350                                         PIPE_TEXTURE_USAGE_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,
 431                                         PIPE_TEXTURE_USAGE_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,
 436                                         PIPE_TEXTURE_USAGE_SAMPLER, 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     /* For same-surface copies, the pipe->surface_copy path is clearly
 443      * superior, providing it is implemented.  In other cases it's not
 444      * clear what the better path would be, and eventually we'd
 445      * probably want to gather timings and choose dynamically.
 446      */
 447     if (exa->pipe->surface_copy &&
 448         exa->copy.src == exa->copy.dst) {
 449
 450        exa->copy.use_surface_copy = TRUE;
 451
 452        exa->copy.src_surface =
 453           exa->scrn->get_tex_surface( exa->scrn,
 454                                       exa->copy.src->tex,
 455                                       0, 0, 0,
 456                                       PIPE_BUFFER_USAGE_GPU_READ);
 457
 458        exa->copy.dst_surface =
 459           exa->scrn->get_tex_surface( exa->scrn,
 460                                       exa->copy.dst->tex,
 461                                       0, 0, 0,
 462                                       PIPE_BUFFER_USAGE_GPU_WRITE );
 463     }
 464     else {
 465        exa->copy.use_surface_copy = FALSE;
 466
 467        if (exa->copy.dst == exa->copy.src)
 468           exa->copy.src_texture = renderer_clone_texture( exa->renderer,
 469                                                           exa->copy.src->tex );
 470        else
 471           pipe_texture_reference(&exa->copy.src_texture,
 472                                  exa->copy.src->tex);
 473
 474        exa->copy.dst_surface =
 475           exa->scrn->get_tex_surface(exa->scrn,
 476                                      exa->copy.dst->tex,
 477                                      0, 0, 0,
 478                                      PIPE_BUFFER_USAGE_GPU_WRITE);
 479
 480
 481        renderer_copy_prepare(exa->renderer,
 482                              exa->copy.dst_surface,
 483                              exa->copy.src_texture );
 484     }
 485
 486
 487     return TRUE;
 488 }
 489
 490 static void
 491 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 492         int width, int height)
 493 {
 494    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 495    modesettingPtr ms = modesettingPTR(pScrn);
 496    struct exa_context *exa = ms->exa;
 497    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 498
 499 #if DEBUG_PRINT
 500    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 501                 srcX, srcY, dstX, dstY, width, height);
 502 #endif
 503
 504    debug_assert(priv == exa->copy.dst);
 505    (void) priv;
 506
 507    if (exa->copy.use_surface_copy) {
 508       /* XXX: consider exposing >1 box in surface_copy interface.
 509        */
 510       exa->pipe->surface_copy( exa->pipe,
 511                              exa->copy.dst_surface,
 512                              dstX, dstY,
 513                              exa->copy.src_surface,
 514                              srcX, srcY,
 515                              width, height );
 516    }
 517    else {
 518       renderer_copy_pixmap(exa->renderer,
 519                            dstX, dstY,
 520                            srcX, srcY,
 521                            width, height,
 522                            exa->copy.src_texture->width0,
 523                            exa->copy.src_texture->height0);
 524    }
 525 }
 526
 527 static void
 528 ExaDoneCopy(PixmapPtr pPixmap)
 529 {
 530     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 531     modesettingPtr ms = modesettingPTR(pScrn);
 532     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 533     struct exa_context *exa = ms->exa;
 534
 535     if (!priv)
 536         return;
 537
 538    renderer_draw_flush(exa->renderer);
 539
 540    exa->copy.src = NULL;
 541    exa->copy.dst = NULL;
 542    pipe_surface_reference(&exa->copy.src_surface, NULL);
 543    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 544    pipe_texture_reference(&exa->copy.src_texture, NULL);
 545 }
 546
 547
 548
 549 static Bool
 550 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 551 {
 552    if (pSrc->picture_format == pSrcPicture->format)
 553       return TRUE;
 554
 555    if (pSrc->picture_format != PICT_a8r8g8b8)
 556       return FALSE;
 557
 558    /* pSrc->picture_format == PICT_a8r8g8b8 */
 559    switch (pSrcPicture->format) {
 560    case PICT_a8r8g8b8:
 561    case PICT_x8r8g8b8:
 562    case PICT_a8b8g8r8:
 563    case PICT_x8b8g8r8:
 564    /* just treat these two as x8... */
 565    case PICT_r8g8b8:
 566    case PICT_b8g8r8:
 567       return TRUE;
 568 #ifdef PICT_TYPE_BGRA
 569    case PICT_b8g8r8a8:
 570    case PICT_b8g8r8x8:
 571       return FALSE; /* does not support swizzleing the alpha channel yet */
 572    case PICT_a2r10g10b10:
 573    case PICT_x2r10g10b10:
 574    case PICT_a2b10g10r10:
 575    case PICT_x2b10g10r10:
 576       return FALSE;
 577 #endif
 578    default:
 579       return FALSE;
 580    }
 581    return FALSE;
 582 }
 583
 584 /***********************************************************************
 585  * Composite entrypoints
 586  */
 587
 588 static Bool
 589 ExaCheckComposite(int op,
 590                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 591                   PicturePtr pDstPicture)
 592 {
 593    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 594    modesettingPtr ms = modesettingPTR(pScrn);
 595    struct exa_context *exa = ms->exa;
 596
 597 #if DEBUG_PRINT
 598    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 599                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 600 #endif
 601
 602    if (!exa->accel)
 603        return FALSE;
 604
 605    return xorg_composite_accelerated(op,
 606                                      pSrcPicture,
 607                                      pMaskPicture,
 608                                      pDstPicture);
 609 }
 610
 611
 612 static Bool
 613 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 614                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 615                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 616 {
 617    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 618    modesettingPtr ms = modesettingPTR(pScrn);
 619    struct exa_context *exa = ms->exa;
 620    struct exa_pixmap_priv *priv;
 621
 622    if (!exa->accel)
 623        return FALSE;
 624
 625 #if DEBUG_PRINT
 626    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 627                 op, pSrcPicture, pMaskPicture, pDstPicture);
 628    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 629                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 630                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 631                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 632 #endif
 633    if (!exa->pipe)
 634       XORG_FALLBACK("accle not enabled");
 635
 636    priv = exaGetPixmapDriverPrivate(pDst);
 637    if (!priv || !priv->tex)
 638       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 639
 640    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 641                                        priv->tex->target,
 642                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 643       XORG_FALLBACK("pDst format: %s", util_format_name(priv->tex->format));
 644
 645    if (priv->picture_format != pDstPicture->format)
 646       XORG_FALLBACK("pDst pic_format: %s != %s",
 647                     render_format_name(priv->picture_format),
 648                     render_format_name(pDstPicture->format));
 649
 650    if (pSrc) {
 651       priv = exaGetPixmapDriverPrivate(pSrc);
 652       if (!priv || !priv->tex)
 653          XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
 654
 655       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 656                                           priv->tex->target,
 657                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 658          XORG_FALLBACK("pSrc format: %s", util_format_name(priv->tex->format));
 659
 660       if (!picture_check_formats(priv, pSrcPicture))
 661          XORG_FALLBACK("pSrc pic_format: %s != %s",
 662                        render_format_name(priv->picture_format),
 663                        render_format_name(pSrcPicture->format));
 664
 665    }
 666
 667    if (pMask) {
 668       priv = exaGetPixmapDriverPrivate(pMask);
 669       if (!priv || !priv->tex)
 670          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 671
 672       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 673                                           priv->tex->target,
 674                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 675          XORG_FALLBACK("pMask format: %s", util_format_name(priv->tex->format));
 676
 677       if (!picture_check_formats(priv, pMaskPicture))
 678          XORG_FALLBACK("pMask pic_format: %s != %s",
 679                        render_format_name(priv->picture_format),
 680                        render_format_name(pMaskPicture->format));
 681    }
 682
 683    return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 684                                     pDstPicture,
 685                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 686                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 687                                     exaGetPixmapDriverPrivate(pDst));
 688 }
 689
 690 static void
 691 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 692              int dstX, int dstY, int width, int height)
 693 {
 694    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 695    modesettingPtr ms = modesettingPTR(pScrn);
 696    struct exa_context *exa = ms->exa;
 697    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 698
 699 #if DEBUG_PRINT
 700    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 701                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 702    debug_printf("\t   Num bound samplers = %d\n",
 703                 exa->num_bound_samplers);
 704 #endif
 705
 706    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 707                   dstX, dstY, width, height);
 708 }
 709
 710
 711
 712 static void
 713 ExaDoneComposite(PixmapPtr pPixmap)
 714 {
 715    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 716    modesettingPtr ms = modesettingPTR(pScrn);
 717    struct exa_context *exa = ms->exa;
 718
 719    xorg_composite_done(exa);
 720 }
 721
 722
 723 /***********************************************************************
 724  * Pixmaps
 725  */
 726
 727 static void *
 728 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 729 {
 730     struct exa_pixmap_priv *priv;
 731
 732     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 733     if (!priv)
 734         return NULL;
 735
 736     return priv;
 737 }
 738
 739 static void
 740 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 741 {
 742     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 743
 744     if (!priv)
 745         return;
 746
 747     pipe_texture_reference(&priv->tex, NULL);
 748
 749     xfree(priv);
 750 }
 751
 752 static Bool
 753 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 754 {
 755     struct exa_pixmap_priv *priv;
 756
 757     priv = exaGetPixmapDriverPrivate(pPixmap);
 758
 759     if (!priv)
 760         return FALSE;
 761
 762     if (priv->tex)
 763         return TRUE;
 764
 765     return FALSE;
 766 }
 767
 768 int
 769 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 770 {
 771     struct exa_pixmap_priv *priv;
 772     priv = exaGetPixmapDriverPrivate(pPixmap);
 773
 774     if (!priv) {
 775         FatalError("NO PIXMAP PRIVATE\n");
 776         return 0;
 777     }
 778
 779     priv->flags |= PIPE_TEXTURE_USAGE_SCANOUT;
 780
 781     return 0;
 782 }
 783
 784 int
 785 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 786 {
 787     struct exa_pixmap_priv *priv;
 788     priv = exaGetPixmapDriverPrivate(pPixmap);
 789
 790     if (!priv) {
 791         FatalError("NO PIXMAP PRIVATE\n");
 792         return 0;
 793     }
 794
 795     priv->flags |= PIPE_TEXTURE_USAGE_SHARED;
 796
 797     return 0;
 798 }
 799
 800
 801
 802 static Bool
 803 size_match( int width, int tex_width )
 804 {
 805 #if ROUND_UP_TEXTURES
 806    if (width > tex_width)
 807       return FALSE;
 808
 809    if (width * 2 < tex_width)
 810       return FALSE;
 811
 812    return TRUE;
 813 #else
 814    return width == tex_width;
 815 #endif
 816 }
 817
 818 static Bool
 819 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 820                       int depth, int bitsPerPixel, int devKind,
 821                       pointer pPixData)
 822 {
 823     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 824     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 825     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 826     modesettingPtr ms = modesettingPTR(pScrn);
 827     struct exa_context *exa = ms->exa;
 828
 829     if (!priv || pPixData)
 830         return FALSE;
 831
 832     if (0) {
 833        debug_printf("%s pixmap %p sz %dx%dx%d devKind %d\n",
 834                     __FUNCTION__, pPixmap, width, height, bitsPerPixel, devKind);
 835
 836        if (priv->tex)
 837           debug_printf("  ==> old texture %dx%d\n",
 838                        priv->tex->width0,
 839                        priv->tex->height0);
 840     }
 841
 842
 843     if (depth <= 0)
 844         depth = pPixmap->drawable.depth;
 845
 846     if (bitsPerPixel <= 0)
 847         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 848
 849     if (width <= 0)
 850         width = pPixmap->drawable.width;
 851
 852     if (height <= 0)
 853         height = pPixmap->drawable.height;
 854
 855     if (width <= 0 || height <= 0 || depth <= 0)
 856         return FALSE;
 857
 858     miModifyPixmapHeader(pPixmap, width, height, depth,
 859                              bitsPerPixel, devKind, NULL);
 860
 861     priv->width = width;
 862     priv->height = height;
 863
 864     /* Deal with screen resize */
 865     if ((exa->accel || priv->flags) &&
 866         (!priv->tex ||
 867          !size_match(width, priv->tex->width0) ||
 868          !size_match(height, priv->tex->height0) ||
 869          priv->tex_flags != priv->flags)) {
 870         struct pipe_texture *texture = NULL;
 871         struct pipe_texture template;
 872
 873         memset(&template, 0, sizeof(template));
 874         template.target = PIPE_TEXTURE_2D;
 875         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 876         if (ROUND_UP_TEXTURES && priv->flags == 0) {
 877            template.width0 = util_next_power_of_two(width);
 878            template.height0 = util_next_power_of_two(height);
 879         }
 880         else {
 881            template.width0 = width;
 882            template.height0 = height;
 883         }
 884
 885         template.depth0 = 1;
 886         template.last_level = 0;
 887         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 888         priv->tex_flags = priv->flags;
 889         texture = exa->scrn->texture_create(exa->scrn, &template);
 890
 891         if (priv->tex) {
 892             struct pipe_surface *dst_surf;
 893             struct pipe_surface *src_surf;
 894
 895             dst_surf = exa->scrn->get_tex_surface(
 896                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 897             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 898             if (exa->pipe->surface_copy) {
 899                exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 900                                        0, 0, min(width, texture->width0),
 901                                        min(height, texture->height0));
 902             } else {
 903                util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 904                                  0, 0, min(width, texture->width0),
 905                                  min(height, texture->height0));
 906             }
 907             exa->scrn->tex_surface_destroy(dst_surf);
 908             exa->scrn->tex_surface_destroy(src_surf);
 909         }
 910
 911         pipe_texture_reference(&priv->tex, texture);
 912         /* the texture we create has one reference */
 913         pipe_texture_reference(&texture, NULL);
 914     }
 915
 916     return TRUE;
 917 }
 918
 919 struct pipe_texture *
 920 xorg_exa_get_texture(PixmapPtr pPixmap)
 921 {
 922    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 923    struct pipe_texture *tex = NULL;
 924    pipe_texture_reference(&tex, priv->tex);
 925    return tex;
 926 }
 927
 928 Bool
 929 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 930 {
 931     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 932
 933     int mask = PIPE_TEXTURE_USAGE_SHARED | PIPE_TEXTURE_USAGE_SCANOUT;
 934
 935     if (!priv)
 936         return FALSE;
 937
 938     if (pPixmap->drawable.width != tex->width0 ||
 939         pPixmap->drawable.height != tex->height0)
 940         return FALSE;
 941
 942     pipe_texture_reference(&priv->tex, tex);
 943     priv->tex_flags = tex->tex_usage & mask;
 944
 945     return TRUE;
 946 }
 947
 948 struct pipe_texture *
 949 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 950                              int width, int height,
 951                              int depth, int bitsPerPixel)
 952 {
 953     modesettingPtr ms = modesettingPTR(pScrn);
 954     struct exa_context *exa = ms->exa;
 955     struct pipe_texture template;
 956     int dummy;
 957
 958     memset(&template, 0, sizeof(template));
 959     template.target = PIPE_TEXTURE_2D;
 960     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 961     template.width0 = width;
 962     template.height0 = height;
 963     template.depth0 = 1;
 964     template.last_level = 0;
 965     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 966     template.tex_usage |= PIPE_TEXTURE_USAGE_SCANOUT;
 967     template.tex_usage |= PIPE_TEXTURE_USAGE_SHARED;
 968
 969     return exa->scrn->texture_create(exa->scrn, &template);
 970 }
 971
 972 void
 973 xorg_exa_close(ScrnInfoPtr pScrn)
 974 {
 975    modesettingPtr ms = modesettingPTR(pScrn);
 976    struct exa_context *exa = ms->exa;
 977
 978    pipe_sampler_view_reference(&exa->bound_sampler_views[0], NULL);
 979    pipe_sampler_view_reference(&exa->bound_sampler_views[1], NULL);
 980
 981    renderer_destroy(exa->renderer);
 982
 983    if (exa->pipe)
 984       exa->pipe->destroy(exa->pipe);
 985    exa->pipe = NULL;
 986    /* Since this was shared be proper with the pointer */
 987    ms->ctx = NULL;
 988
 989    exaDriverFini(pScrn->pScreen);
 990    xfree(exa);
 991    ms->exa = NULL;
 992 }
 993
 994 void *
 995 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
 996 {
 997    modesettingPtr ms = modesettingPTR(pScrn);
 998    struct exa_context *exa;
 999    ExaDriverPtr pExa;
1000
1001    exa = xcalloc(1, sizeof(struct exa_context));
1002    if (!exa)
1003       return NULL;
1004
1005    pExa = exaDriverAlloc();
1006    if (!pExa) {
1007       goto out_err;
1008    }
1009
1010    memset(pExa, 0, sizeof(*pExa));
1011
1012    pExa->exa_major         = 2;
1013    pExa->exa_minor         = 2;
1014    pExa->memoryBase        = 0;
1015    pExa->memorySize        = 0;
1016    pExa->offScreenBase     = 0;
1017    pExa->pixmapOffsetAlign = 0;
1018    pExa->pixmapPitchAlign  = 1;
1019    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
1020 #ifdef EXA_SUPPORTS_PREPARE_AUX
1021    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
1022 #endif
1023 #ifdef EXA_MIXED_PIXMAPS
1024    pExa->flags            |= EXA_MIXED_PIXMAPS;
1025 #endif
1026    pExa->maxX              = 8191; /* FIXME */
1027    pExa->maxY              = 8191; /* FIXME */
1028
1029    pExa->WaitMarker         = ExaWaitMarker;
1030    pExa->MarkSync           = ExaMarkSync;
1031    pExa->PrepareSolid       = ExaPrepareSolid;
1032    pExa->Solid              = ExaSolid;
1033    pExa->DoneSolid          = ExaDoneSolid;
1034    pExa->PrepareCopy        = ExaPrepareCopy;
1035    pExa->Copy               = ExaCopy;
1036    pExa->DoneCopy           = ExaDoneCopy;
1037    pExa->CheckComposite     = ExaCheckComposite;
1038    pExa->PrepareComposite   = ExaPrepareComposite;
1039    pExa->Composite          = ExaComposite;
1040    pExa->DoneComposite      = ExaDoneComposite;
1041    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1042    pExa->DownloadFromScreen = ExaDownloadFromScreen;
1043    pExa->UploadToScreen     = ExaUploadToScreen;
1044    pExa->PrepareAccess      = ExaPrepareAccess;
1045    pExa->FinishAccess       = ExaFinishAccess;
1046    pExa->CreatePixmap       = ExaCreatePixmap;
1047    pExa->DestroyPixmap      = ExaDestroyPixmap;
1048    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1049
1050    if (!exaDriverInit(pScrn->pScreen, pExa)) {
1051       goto out_err;
1052    }
1053
1054    exa->scrn = ms->screen;
1055    exa->pipe = exa->scrn->context_create(exa->scrn, NULL);
1056    if (exa->pipe == NULL)
1057       goto out_err;
1058
1059    /* Share context with DRI */
1060    ms->ctx = exa->pipe;
1061
1062    exa->renderer = renderer_create(exa->pipe);
1063    exa->accel = accel;
1064
1065    return (void *)exa;
1066
1067 out_err:
1068    xorg_exa_close(pScrn);
1069
1070    return NULL;
1071 }
1072
1073 struct pipe_surface *
1074 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1075 {
1076    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1077                                 PIPE_BUFFER_USAGE_GPU_READ |
1078                                 PIPE_BUFFER_USAGE_GPU_WRITE);
1079
1080 }
1081
1082 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1083                     struct pipe_fence_handle **fence)
1084 {
1085    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1086 }
1087
1088 void xorg_exa_finish(struct exa_context *exa)
1089 {
1090    struct pipe_fence_handle *fence = NULL;
1091
1092    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1093
1094    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1095    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1096 }
1097