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_format.h"
  47 #include "util/u_rect.h"
  48 #include "util/u_math.h"
  49 #include "util/u_debug.h"
  50
  51 #define DEBUG_PRINT 0
  52 #define ROUND_UP_TEXTURES 1
  53
  54 /*
  55  * Helper functions
  56  */
  57 struct render_format_str {
  58    int format;
  59    const char *name;
  60 };
  61 static const struct render_format_str formats_info[] =
  62 {
  63    {PICT_a8r8g8b8, "PICT_a8r8g8b8"},
  64    {PICT_x8r8g8b8, "PICT_x8r8g8b8"},
  65    {PICT_a8b8g8r8, "PICT_a8b8g8r8"},
  66    {PICT_x8b8g8r8, "PICT_x8b8g8r8"},
  67 #ifdef PICT_TYPE_BGRA
  68    {PICT_b8g8r8a8, "PICT_b8g8r8a8"},
  69    {PICT_b8g8r8x8, "PICT_b8g8r8x8"},
  70    {PICT_a2r10g10b10, "PICT_a2r10g10b10"},
  71    {PICT_x2r10g10b10, "PICT_x2r10g10b10"},
  72    {PICT_a2b10g10r10, "PICT_a2b10g10r10"},
  73    {PICT_x2b10g10r10, "PICT_x2b10g10r10"},
  74 #endif
  75    {PICT_r8g8b8, "PICT_r8g8b8"},
  76    {PICT_b8g8r8, "PICT_b8g8r8"},
  77    {PICT_r5g6b5, "PICT_r5g6b5"},
  78    {PICT_b5g6r5, "PICT_b5g6r5"},
  79    {PICT_a1r5g5b5, "PICT_a1r5g5b5"},
  80    {PICT_x1r5g5b5, "PICT_x1r5g5b5"},
  81    {PICT_a1b5g5r5, "PICT_a1b5g5r5"},
  82    {PICT_x1b5g5r5, "PICT_x1b5g5r5"},
  83    {PICT_a4r4g4b4, "PICT_a4r4g4b4"},
  84    {PICT_x4r4g4b4, "PICT_x4r4g4b4"},
  85    {PICT_a4b4g4r4, "PICT_a4b4g4r4"},
  86    {PICT_x4b4g4r4, "PICT_x4b4g4r4"},
  87    {PICT_a8, "PICT_a8"},
  88    {PICT_r3g3b2, "PICT_r3g3b2"},
  89    {PICT_b2g3r3, "PICT_b2g3r3"},
  90    {PICT_a2r2g2b2, "PICT_a2r2g2b2"},
  91    {PICT_a2b2g2r2, "PICT_a2b2g2r2"},
  92    {PICT_c8, "PICT_c8"},
  93    {PICT_g8, "PICT_g8"},
  94    {PICT_x4a4, "PICT_x4a4"},
  95    {PICT_x4c4, "PICT_x4c4"},
  96    {PICT_x4g4, "PICT_x4g4"},
  97    {PICT_a4, "PICT_a4"},
  98    {PICT_r1g2b1, "PICT_r1g2b1"},
  99    {PICT_b1g2r1, "PICT_b1g2r1"},
 100    {PICT_a1r1g1b1, "PICT_a1r1g1b1"},
 101    {PICT_a1b1g1r1, "PICT_a1b1g1r1"},
 102    {PICT_c4, "PICT_c4"},
 103    {PICT_g4, "PICT_g4"},
 104    {PICT_a1, "PICT_a1"},
 105    {PICT_g1, "PICT_g1"}
 106 };
 107 static const char *render_format_name(int format)
 108 {
 109    int i = 0;
 110    for (i = 0; i < sizeof(formats_info)/sizeof(formats_info[0]); ++i) {
 111       if (formats_info[i].format == format)
 112          return formats_info[i].name;
 113    }
 114    return NULL;
 115 }
 116
 117 static void
 118 exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp, int *picture_format)
 119 {
 120     switch (depth) {
 121     case 32:
 122         *format = PIPE_FORMAT_A8R8G8B8_UNORM;
 123         *picture_format = PICT_a8r8g8b8;
 124         assert(*bbp == 32);
 125         break;
 126     case 24:
 127         *format = PIPE_FORMAT_X8R8G8B8_UNORM;
 128         *picture_format = PICT_x8r8g8b8;
 129         assert(*bbp == 32);
 130         break;
 131     case 16:
 132         *format = PIPE_FORMAT_R5G6B5_UNORM;
 133         *picture_format = PICT_r5g6b5;
 134         assert(*bbp == 16);
 135         break;
 136     case 15:
 137         *format = PIPE_FORMAT_A1R5G5B5_UNORM;
 138         *picture_format = PICT_x1r5g5b5;
 139         assert(*bbp == 16);
 140         break;
 141     case 8:
 142         *format = PIPE_FORMAT_L8_UNORM;
 143         *picture_format = PICT_a8;
 144         assert(*bbp == 8);
 145         break;
 146     case 4:
 147     case 1:
 148         *format = PIPE_FORMAT_A8R8G8B8_UNORM; /* bad bad bad */
 149         break;
 150     default:
 151         assert(0);
 152         break;
 153     }
 154 }
 155
 156
 157 /*
 158  * Static exported EXA functions
 159  */
 160
 161 static void
 162 ExaWaitMarker(ScreenPtr pScreen, int marker)
 163 {
 164    /* Nothing to do, handled in the PrepareAccess hook */
 165 }
 166
 167 static int
 168 ExaMarkSync(ScreenPtr pScreen)
 169 {
 170    return 1;
 171 }
 172
 173
 174 /***********************************************************************
 175  * Screen upload/download
 176  */
 177
 178 static Bool
 179 ExaDownloadFromScreen(PixmapPtr pPix, int x,  int y, int w,  int h, char *dst,
 180                       int dst_pitch)
 181 {
 182     ScreenPtr pScreen = pPix->drawable.pScreen;
 183     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 184     modesettingPtr ms = modesettingPTR(pScrn);
 185     struct exa_context *exa = ms->exa;
 186     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 187     struct pipe_transfer *transfer;
 188
 189     if (!priv || !priv->tex)
 190         return FALSE;
 191
 192     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 193         PIPE_REFERENCED_FOR_WRITE)
 194         exa->pipe->flush(exa->pipe, 0, NULL);
 195
 196     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 197                                            PIPE_TRANSFER_READ, x, y, w, h);
 198     if (!transfer)
 199         return FALSE;
 200
 201 #if DEBUG_PRINT
 202     debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
 203                  x, y, w, h, dst_pitch);
 204 #endif
 205
 206     util_copy_rect((unsigned char*)dst, priv->tex->format, dst_pitch, 0, 0,
 207                    w, h, exa->scrn->transfer_map(exa->scrn, transfer),
 208                    transfer->stride, 0, 0);
 209
 210     exa->scrn->transfer_unmap(exa->scrn, transfer);
 211     exa->scrn->tex_transfer_destroy(transfer);
 212
 213     return TRUE;
 214 }
 215
 216 static Bool
 217 ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
 218                   int src_pitch)
 219 {
 220     ScreenPtr pScreen = pPix->drawable.pScreen;
 221     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 222     modesettingPtr ms = modesettingPTR(pScrn);
 223     struct exa_context *exa = ms->exa;
 224     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 225     struct pipe_transfer *transfer;
 226
 227     if (!priv || !priv->tex)
 228         return FALSE;
 229
 230     /* make sure that any pending operations are flushed to hardware */
 231     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 232         (PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE))
 233         xorg_exa_flush(exa, 0, NULL);
 234
 235     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 236                                            PIPE_TRANSFER_WRITE, x, y, w, h);
 237     if (!transfer)
 238         return FALSE;
 239
 240 #if DEBUG_PRINT
 241     debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
 242                  x, y, w, h, src_pitch);
 243 #endif
 244
 245     util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
 246                    priv->tex->format, transfer->stride, 0, 0, w, h,
 247                    (unsigned char*)src, src_pitch, 0, 0);
 248
 249     exa->scrn->transfer_unmap(exa->scrn, transfer);
 250     exa->scrn->tex_transfer_destroy(transfer);
 251
 252     return TRUE;
 253 }
 254
 255 static Bool
 256 ExaPrepareAccess(PixmapPtr pPix, int index)
 257 {
 258     ScreenPtr pScreen = pPix->drawable.pScreen;
 259     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 260     modesettingPtr ms = modesettingPTR(pScrn);
 261     struct exa_context *exa = ms->exa;
 262     struct exa_pixmap_priv *priv;
 263
 264     priv = exaGetPixmapDriverPrivate(pPix);
 265
 266     if (!priv)
 267         return FALSE;
 268
 269     if (!priv->tex)
 270         return FALSE;
 271
 272     if (priv->map_count == 0)
 273     {
 274         if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 275             PIPE_REFERENCED_FOR_WRITE)
 276             exa->pipe->flush(exa->pipe, 0, NULL);
 277
 278         assert(pPix->drawable.width <= priv->tex->width0);
 279         assert(pPix->drawable.height <= priv->tex->height0);
 280
 281         priv->map_transfer =
 282             exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 283 #ifdef EXA_MIXED_PIXMAPS
 284                                         PIPE_TRANSFER_MAP_DIRECTLY |
 285 #endif
 286                                         PIPE_TRANSFER_READ_WRITE,
 287                                         0, 0,
 288                                         pPix->drawable.width,
 289                                         pPix->drawable.height );
 290         if (!priv->map_transfer)
 291 #ifdef EXA_MIXED_PIXMAPS
 292             return FALSE;
 293 #else
 294             FatalError("failed to create transfer\n");
 295 #endif
 296
 297         pPix->devPrivate.ptr =
 298             exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
 299         pPix->devKind = priv->map_transfer->stride;
 300     }
 301
 302     priv->map_count++;
 303
 304     return TRUE;
 305 }
 306
 307 static void
 308 ExaFinishAccess(PixmapPtr pPix, int index)
 309 {
 310     ScreenPtr pScreen = pPix->drawable.pScreen;
 311     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 312     modesettingPtr ms = modesettingPTR(pScrn);
 313     struct exa_context *exa = ms->exa;
 314     struct exa_pixmap_priv *priv;
 315     priv = exaGetPixmapDriverPrivate(pPix);
 316
 317     if (!priv)
 318         return;
 319
 320     if (!priv->map_transfer)
 321         return;
 322
 323     if (--priv->map_count == 0) {
 324         assert(priv->map_transfer);
 325         exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
 326         exa->scrn->tex_transfer_destroy(priv->map_transfer);
 327         priv->map_transfer = NULL;
 328         pPix->devPrivate.ptr = NULL;
 329     }
 330 }
 331
 332 /***********************************************************************
 333  * Solid Fills
 334  */
 335
 336 static Bool
 337 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 338 {
 339     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 340     modesettingPtr ms = modesettingPTR(pScrn);
 341     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 342     struct exa_context *exa = ms->exa;
 343
 344 #if DEBUG_PRINT
 345     debug_printf("ExaPrepareSolid(0x%x)\n", fg);
 346 #endif
 347     if (!exa->pipe)
 348         XORG_FALLBACK("accle not enabled");
 349
 350     if (!priv || !priv->tex)
 351         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 352
 353     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 354         XORG_FALLBACK("planeMask is not solid");
 355
 356     if (alu != GXcopy)
 357         XORG_FALLBACK("not GXcopy");
 358
 359     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 360                                         priv->tex->target,
 361                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
 362         XORG_FALLBACK("format %s", pf_name(priv->tex->format));
 363     }
 364
 365     return exa->accel && xorg_solid_bind_state(exa, priv, fg);
 366 }
 367
 368 static void
 369 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 370 {
 371     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 372     modesettingPtr ms = modesettingPTR(pScrn);
 373     struct exa_context *exa = ms->exa;
 374     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 375
 376 #if DEBUG_PRINT
 377     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 378 #endif
 379
 380     if (x0 == 0 && y0 == 0 &&
 381         x1 == pPixmap->drawable.width && y1 == pPixmap->drawable.height) {
 382        exa->pipe->clear(exa->pipe, PIPE_CLEAR_COLOR, exa->solid_color, 0.0, 0);
 383        return;
 384     }
 385
 386     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 387 }
 388
 389
 390 static void
 391 ExaDoneSolid(PixmapPtr pPixmap)
 392 {
 393     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 394     modesettingPtr ms = modesettingPTR(pScrn);
 395     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 396     struct exa_context *exa = ms->exa;
 397
 398     if (!priv)
 399         return;
 400
 401     xorg_composite_done(exa);
 402 }
 403
 404 /***********************************************************************
 405  * Copy Blits
 406  */
 407
 408 static Bool
 409 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 410                int ydir, int alu, Pixel planeMask)
 411 {
 412     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 413     modesettingPtr ms = modesettingPTR(pScrn);
 414     struct exa_context *exa = ms->exa;
 415     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 416     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 417
 418 #if DEBUG_PRINT
 419     debug_printf("ExaPrepareCopy\n");
 420 #endif
 421     if (!exa->pipe)
 422         XORG_FALLBACK("accle not enabled");
 423
 424     if (!priv || !priv->tex)
 425         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 426
 427     if (!src_priv || !src_priv->tex)
 428         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 429
 430     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 431         XORG_FALLBACK("planeMask is not solid");
 432
 433     if (alu != GXcopy)
 434         XORG_FALLBACK("alu not GXcopy");
 435
 436     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 437                                         priv->tex->target,
 438                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 439         XORG_FALLBACK("pDst format %s", pf_name(priv->tex->format));
 440
 441     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 442                                         src_priv->tex->target,
 443                                         PIPE_TEXTURE_USAGE_SAMPLER, 0))
 444         XORG_FALLBACK("pSrc format %s", pf_name(src_priv->tex->format));
 445
 446     exa->copy.src = src_priv;
 447     exa->copy.dst = priv;
 448
 449     /* For same-surface copies, the pipe->surface_copy path is clearly
 450      * superior, providing it is implemented.  In other cases it's not
 451      * clear what the better path would be, and eventually we'd
 452      * probably want to gather timings and choose dynamically.
 453      */
 454     if (exa->pipe->surface_copy &&
 455         exa->copy.src == exa->copy.dst) {
 456
 457        exa->copy.use_surface_copy = TRUE;
 458
 459        exa->copy.src_surface =
 460           exa->scrn->get_tex_surface( exa->scrn,
 461                                       exa->copy.src->tex,
 462                                       0, 0, 0,
 463                                       PIPE_BUFFER_USAGE_GPU_READ);
 464
 465        exa->copy.dst_surface =
 466           exa->scrn->get_tex_surface( exa->scrn,
 467                                       exa->copy.dst->tex,
 468                                       0, 0, 0,
 469                                       PIPE_BUFFER_USAGE_GPU_WRITE );
 470     }
 471     else {
 472        exa->copy.use_surface_copy = FALSE;
 473
 474        if (exa->copy.dst == exa->copy.src)
 475           exa->copy.src_texture = renderer_clone_texture( exa->renderer,
 476                                                           exa->copy.src->tex );
 477        else
 478           pipe_texture_reference(&exa->copy.src_texture,
 479                                  exa->copy.src->tex);
 480
 481        exa->copy.dst_surface =
 482           exa->scrn->get_tex_surface(exa->scrn,
 483                                      exa->copy.dst->tex,
 484                                      0, 0, 0,
 485                                      PIPE_BUFFER_USAGE_GPU_WRITE);
 486
 487
 488        renderer_copy_prepare(exa->renderer,
 489                              exa->copy.dst_surface,
 490                              exa->copy.src_texture );
 491     }
 492
 493
 494     return exa->accel;
 495 }
 496
 497 static void
 498 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 499         int width, int height)
 500 {
 501    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 502    modesettingPtr ms = modesettingPTR(pScrn);
 503    struct exa_context *exa = ms->exa;
 504    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 505
 506 #if DEBUG_PRINT
 507    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 508                 srcX, srcY, dstX, dstY, width, height);
 509 #endif
 510
 511    debug_assert(priv == exa->copy.dst);
 512
 513    if (exa->copy.use_surface_copy) {
 514       /* XXX: consider exposing >1 box in surface_copy interface.
 515        */
 516       exa->pipe->surface_copy( exa->pipe,
 517                              exa->copy.dst_surface,
 518                              dstX, dstY,
 519                              exa->copy.src_surface,
 520                              srcX, srcY,
 521                              width, height );
 522    }
 523    else {
 524       renderer_copy_pixmap(exa->renderer,
 525                            dstX, dstY,
 526                            srcX, srcY,
 527                            width, height,
 528                            exa->copy.src_texture->width0,
 529                            exa->copy.src_texture->height0);
 530    }
 531 }
 532
 533 static void
 534 ExaDoneCopy(PixmapPtr pPixmap)
 535 {
 536     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 537     modesettingPtr ms = modesettingPTR(pScrn);
 538     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 539     struct exa_context *exa = ms->exa;
 540
 541     if (!priv)
 542         return;
 543
 544    renderer_draw_flush(exa->renderer);
 545
 546    exa->copy.src = NULL;
 547    exa->copy.dst = NULL;
 548    pipe_surface_reference(&exa->copy.src_surface, NULL);
 549    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 550    pipe_texture_reference(&exa->copy.src_texture, NULL);
 551 }
 552
 553
 554
 555 static Bool
 556 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 557 {
 558    if (pSrc->picture_format == pSrcPicture->format)
 559       return TRUE;
 560
 561    if (pSrc->picture_format != PICT_a8r8g8b8)
 562       return FALSE;
 563
 564    /* pSrc->picture_format == PICT_a8r8g8b8 */
 565    switch (pSrcPicture->format) {
 566    case PICT_a8r8g8b8:
 567    case PICT_x8r8g8b8:
 568    case PICT_a8b8g8r8:
 569    case PICT_x8b8g8r8:
 570    /* just treat these two as x8... */
 571    case PICT_r8g8b8:
 572    case PICT_b8g8r8:
 573       return TRUE;
 574 #ifdef PICT_TYPE_BGRA
 575    case PICT_b8g8r8a8:
 576    case PICT_b8g8r8x8:
 577       return FALSE; /* does not support swizzleing the alpha channel yet */
 578    case PICT_a2r10g10b10:
 579    case PICT_x2r10g10b10:
 580    case PICT_a2b10g10r10:
 581    case PICT_x2b10g10r10:
 582       return FALSE;
 583 #endif
 584    default:
 585       return FALSE;
 586    }
 587    return FALSE;
 588 }
 589
 590 /***********************************************************************
 591  * Composite entrypoints
 592  */
 593
 594 static Bool
 595 ExaCheckComposite(int op,
 596                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 597                   PicturePtr pDstPicture)
 598 {
 599    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 600    modesettingPtr ms = modesettingPTR(pScrn);
 601    struct exa_context *exa = ms->exa;
 602    boolean accelerated = xorg_composite_accelerated(op,
 603                                                     pSrcPicture,
 604                                                     pMaskPicture,
 605                                                     pDstPicture);
 606 #if DEBUG_PRINT
 607    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 608                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 609 #endif
 610    return exa->accel && accelerated;
 611 }
 612
 613
 614 static Bool
 615 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 616                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 617                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 618 {
 619    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 620    modesettingPtr ms = modesettingPTR(pScrn);
 621    struct exa_context *exa = ms->exa;
 622    struct exa_pixmap_priv *priv;
 623
 624 #if DEBUG_PRINT
 625    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 626                 op, pSrcPicture, pMaskPicture, pDstPicture);
 627    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 628                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 629                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 630                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 631 #endif
 632    if (!exa->pipe)
 633       XORG_FALLBACK("accle not enabled");
 634
 635    priv = exaGetPixmapDriverPrivate(pDst);
 636    if (!priv || !priv->tex)
 637       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 638
 639    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 640                                        priv->tex->target,
 641                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 642       XORG_FALLBACK("pDst format: %s", pf_name(priv->tex->format));
 643
 644    if (priv->picture_format != pDstPicture->format)
 645       XORG_FALLBACK("pDst pic_format: %s != %s",
 646                     render_format_name(priv->picture_format),
 647                     render_format_name(pDstPicture->format));
 648
 649    if (pSrc) {
 650       priv = exaGetPixmapDriverPrivate(pSrc);
 651       if (!priv || !priv->tex)
 652          XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
 653
 654       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 655                                           priv->tex->target,
 656                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 657          XORG_FALLBACK("pSrc format: %s", pf_name(priv->tex->format));
 658
 659       if (!picture_check_formats(priv, pSrcPicture))
 660          XORG_FALLBACK("pSrc pic_format: %s != %s",
 661                        render_format_name(priv->picture_format),
 662                        render_format_name(pSrcPicture->format));
 663
 664    }
 665
 666    if (pMask) {
 667       priv = exaGetPixmapDriverPrivate(pMask);
 668       if (!priv || !priv->tex)
 669          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 670
 671       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 672                                           priv->tex->target,
 673                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 674          XORG_FALLBACK("pMask format: %s", pf_name(priv->tex->format));
 675
 676       if (!picture_check_formats(priv, pMaskPicture))
 677          XORG_FALLBACK("pMask pic_format: %s != %s",
 678                        render_format_name(priv->picture_format),
 679                        render_format_name(pMaskPicture->format));
 680    }
 681
 682    return exa->accel &&
 683           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_PRIMARY;
 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_DISPLAY_TARGET;
 796
 797     return 0;
 798 }
 799
 800 unsigned
 801 xorg_exa_get_pixmap_handle(PixmapPtr pPixmap, unsigned *stride_out)
 802 {
 803     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 804     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 805     modesettingPtr ms = modesettingPTR(pScrn);
 806     struct exa_pixmap_priv *priv;
 807     unsigned handle;
 808     unsigned stride;
 809
 810     if (!ms->exa) {
 811         FatalError("NO MS->EXA\n");
 812         return 0;
 813     }
 814
 815     priv = exaGetPixmapDriverPrivate(pPixmap);
 816
 817     if (!priv) {
 818         FatalError("NO PIXMAP PRIVATE\n");
 819         return 0;
 820     }
 821
 822     ms->api->local_handle_from_texture(ms->api, ms->screen, priv->tex, &stride, &handle);
 823     if (stride_out)
 824         *stride_out = stride;
 825
 826     return handle;
 827 }
 828
 829 static Bool
 830 size_match( int width, int tex_width )
 831 {
 832 #if ROUND_UP_TEXTURES
 833    if (width > tex_width)
 834       return FALSE;
 835
 836    if (width * 2 < tex_width)
 837       return FALSE;
 838
 839    return TRUE;
 840 #else
 841    return width == tex_width;
 842 #endif
 843 }
 844
 845 static Bool
 846 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 847                       int depth, int bitsPerPixel, int devKind,
 848                       pointer pPixData)
 849 {
 850     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 851     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 852     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 853     modesettingPtr ms = modesettingPTR(pScrn);
 854     struct exa_context *exa = ms->exa;
 855
 856     if (!priv || pPixData)
 857         return FALSE;
 858
 859     if (0) {
 860        debug_printf("%s pixmap %p sz %dx%dx%d devKind %d\n",
 861                     __FUNCTION__, pPixmap, width, height, bitsPerPixel, devKind);
 862
 863        if (priv->tex)
 864           debug_printf("  ==> old texture %dx%d\n",
 865                        priv->tex->width0,
 866                        priv->tex->height0);
 867     }
 868
 869
 870     if (depth <= 0)
 871         depth = pPixmap->drawable.depth;
 872
 873     if (bitsPerPixel <= 0)
 874         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 875
 876     if (width <= 0)
 877         width = pPixmap->drawable.width;
 878
 879     if (height <= 0)
 880         height = pPixmap->drawable.height;
 881
 882     if (width <= 0 || height <= 0 || depth <= 0)
 883         return FALSE;
 884
 885     miModifyPixmapHeader(pPixmap, width, height, depth,
 886                              bitsPerPixel, devKind, NULL);
 887
 888     priv->width = width;
 889     priv->height = height;
 890
 891     /* Deal with screen resize */
 892     if ((exa->accel || priv->flags) &&
 893         (!priv->tex ||
 894          !size_match(width, priv->tex->width0) ||
 895          !size_match(height, priv->tex->height0) ||
 896          priv->tex_flags != priv->flags)) {
 897         struct pipe_texture *texture = NULL;
 898         struct pipe_texture template;
 899
 900         memset(&template, 0, sizeof(template));
 901         template.target = PIPE_TEXTURE_2D;
 902         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 903         if (ROUND_UP_TEXTURES && priv->flags == 0) {
 904            template.width0 = util_next_power_of_two(width);
 905            template.height0 = util_next_power_of_two(height);
 906         }
 907         else {
 908            template.width0 = width;
 909            template.height0 = height;
 910         }
 911
 912         template.depth0 = 1;
 913         template.last_level = 0;
 914         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 915         priv->tex_flags = priv->flags;
 916         texture = exa->scrn->texture_create(exa->scrn, &template);
 917
 918         if (priv->tex) {
 919             struct pipe_surface *dst_surf;
 920             struct pipe_surface *src_surf;
 921
 922             dst_surf = exa->scrn->get_tex_surface(
 923                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 924             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 925             if (exa->pipe->surface_copy) {
 926                exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 927                                        0, 0, min(width, texture->width0),
 928                                        min(height, texture->height0));
 929             } else {
 930                util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 931                                  0, 0, min(width, texture->width0),
 932                                  min(height, texture->height0));
 933             }
 934             exa->scrn->tex_surface_destroy(dst_surf);
 935             exa->scrn->tex_surface_destroy(src_surf);
 936         }
 937
 938         pipe_texture_reference(&priv->tex, texture);
 939         /* the texture we create has one reference */
 940         pipe_texture_reference(&texture, NULL);
 941     }
 942
 943     return TRUE;
 944 }
 945
 946 struct pipe_texture *
 947 xorg_exa_get_texture(PixmapPtr pPixmap)
 948 {
 949    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 950    struct pipe_texture *tex = NULL;
 951    pipe_texture_reference(&tex, priv->tex);
 952    return tex;
 953 }
 954
 955 Bool
 956 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 957 {
 958     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 959
 960     int mask = PIPE_TEXTURE_USAGE_PRIMARY | PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 961
 962     if (!priv)
 963         return FALSE;
 964
 965     if (pPixmap->drawable.width != tex->width0 ||
 966         pPixmap->drawable.height != tex->height0)
 967         return FALSE;
 968
 969     pipe_texture_reference(&priv->tex, tex);
 970     priv->tex_flags = tex->tex_usage & mask;
 971
 972     return TRUE;
 973 }
 974
 975 struct pipe_texture *
 976 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 977                              int width, int height,
 978                              int depth, int bitsPerPixel)
 979 {
 980     modesettingPtr ms = modesettingPTR(pScrn);
 981     struct exa_context *exa = ms->exa;
 982     struct pipe_texture template;
 983     int dummy;
 984
 985     memset(&template, 0, sizeof(template));
 986     template.target = PIPE_TEXTURE_2D;
 987     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 988     template.width0 = width;
 989     template.height0 = height;
 990     template.depth0 = 1;
 991     template.last_level = 0;
 992     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 993     template.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 994     template.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 995
 996     return exa->scrn->texture_create(exa->scrn, &template);
 997 }
 998
 999 void
1000 xorg_exa_close(ScrnInfoPtr pScrn)
1001 {
1002    modesettingPtr ms = modesettingPTR(pScrn);
1003    struct exa_context *exa = ms->exa;
1004
1005    renderer_destroy(exa->renderer);
1006
1007    if (exa->pipe)
1008       exa->pipe->destroy(exa->pipe);
1009
1010    exaDriverFini(pScrn->pScreen);
1011    xfree(exa);
1012    ms->exa = NULL;
1013 }
1014
1015 void *
1016 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
1017 {
1018    modesettingPtr ms = modesettingPTR(pScrn);
1019    struct exa_context *exa;
1020    ExaDriverPtr pExa;
1021
1022    exa = xcalloc(1, sizeof(struct exa_context));
1023    if (!exa)
1024       return NULL;
1025
1026    pExa = exaDriverAlloc();
1027    if (!pExa) {
1028       goto out_err;
1029    }
1030
1031    memset(pExa, 0, sizeof(*pExa));
1032
1033    pExa->exa_major         = 2;
1034    pExa->exa_minor         = 2;
1035    pExa->memoryBase        = 0;
1036    pExa->memorySize        = 0;
1037    pExa->offScreenBase     = 0;
1038    pExa->pixmapOffsetAlign = 0;
1039    pExa->pixmapPitchAlign  = 1;
1040    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
1041 #ifdef EXA_SUPPORTS_PREPARE_AUX
1042    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
1043 #endif
1044 #ifdef EXA_MIXED_PIXMAPS
1045    pExa->flags            |= EXA_MIXED_PIXMAPS;
1046 #endif
1047    pExa->maxX              = 8191; /* FIXME */
1048    pExa->maxY              = 8191; /* FIXME */
1049
1050    pExa->WaitMarker         = ExaWaitMarker;
1051    pExa->MarkSync           = ExaMarkSync;
1052    pExa->PrepareSolid       = ExaPrepareSolid;
1053    pExa->Solid              = ExaSolid;
1054    pExa->DoneSolid          = ExaDoneSolid;
1055    pExa->PrepareCopy        = ExaPrepareCopy;
1056    pExa->Copy               = ExaCopy;
1057    pExa->DoneCopy           = ExaDoneCopy;
1058    pExa->CheckComposite     = ExaCheckComposite;
1059    pExa->PrepareComposite   = ExaPrepareComposite;
1060    pExa->Composite          = ExaComposite;
1061    pExa->DoneComposite      = ExaDoneComposite;
1062    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1063    pExa->DownloadFromScreen = ExaDownloadFromScreen;
1064    pExa->UploadToScreen     = ExaUploadToScreen;
1065    pExa->PrepareAccess      = ExaPrepareAccess;
1066    pExa->FinishAccess       = ExaFinishAccess;
1067    pExa->CreatePixmap       = ExaCreatePixmap;
1068    pExa->DestroyPixmap      = ExaDestroyPixmap;
1069    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1070
1071    if (!exaDriverInit(pScrn->pScreen, pExa)) {
1072       goto out_err;
1073    }
1074
1075    exa->scrn = ms->screen;
1076    exa->pipe = ms->api->create_context(ms->api, exa->scrn);
1077    /* Share context with DRI */
1078    ms->ctx = exa->pipe;
1079
1080    exa->renderer = renderer_create(exa->pipe);
1081    exa->accel = accel;
1082
1083    return (void *)exa;
1084
1085 out_err:
1086    xorg_exa_close(pScrn);
1087
1088    return NULL;
1089 }
1090
1091 struct pipe_surface *
1092 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1093 {
1094    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1095                                 PIPE_BUFFER_USAGE_GPU_READ |
1096                                 PIPE_BUFFER_USAGE_GPU_WRITE);
1097
1098 }
1099
1100 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1101                     struct pipe_fence_handle **fence)
1102 {
1103    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1104 }
1105
1106 void xorg_exa_finish(struct exa_context *exa)
1107 {
1108    struct pipe_fence_handle *fence = NULL;
1109
1110    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1111
1112    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1113    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1114 }
1115