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_format.h"
  46 #include "util/u_rect.h"
  47 #include "util/u_math.h"
  48 #include "util/u_debug.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_A8R8G8B8_UNORM;
 122         *picture_format = PICT_a8r8g8b8;
 123         assert(*bbp == 32);
 124         break;
 125     case 24:
 126         *format = PIPE_FORMAT_X8R8G8B8_UNORM;
 127         *picture_format = PICT_x8r8g8b8;
 128         assert(*bbp == 32);
 129         break;
 130     case 16:
 131         *format = PIPE_FORMAT_R5G6B5_UNORM;
 132         *picture_format = PICT_r5g6b5;
 133         assert(*bbp == 16);
 134         break;
 135     case 15:
 136         *format = PIPE_FORMAT_A1R5G5B5_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_A8R8G8B8_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     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 192         PIPE_REFERENCED_FOR_WRITE)
 193         exa->pipe->flush(exa->pipe, 0, NULL);
 194
 195     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 196                                            PIPE_TRANSFER_READ, x, y, w, h);
 197     if (!transfer)
 198         return FALSE;
 199
 200 #if DEBUG_PRINT
 201     debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
 202                  x, y, w, h, dst_pitch);
 203 #endif
 204
 205     util_copy_rect((unsigned char*)dst, priv->tex->format, dst_pitch, 0, 0,
 206                    w, h, exa->scrn->transfer_map(exa->scrn, transfer),
 207                    transfer->stride, 0, 0);
 208
 209     exa->scrn->transfer_unmap(exa->scrn, transfer);
 210     exa->scrn->tex_transfer_destroy(transfer);
 211
 212     return TRUE;
 213 }
 214
 215 static Bool
 216 ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
 217                   int src_pitch)
 218 {
 219     ScreenPtr pScreen = pPix->drawable.pScreen;
 220     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 221     modesettingPtr ms = modesettingPTR(pScrn);
 222     struct exa_context *exa = ms->exa;
 223     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 224     struct pipe_transfer *transfer;
 225
 226     if (!priv || !priv->tex)
 227         return FALSE;
 228
 229     /* make sure that any pending operations are flushed to hardware */
 230     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 231         (PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE))
 232         xorg_exa_flush(exa, 0, NULL);
 233
 234     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 235                                            PIPE_TRANSFER_WRITE, x, y, w, h);
 236     if (!transfer)
 237         return FALSE;
 238
 239 #if DEBUG_PRINT
 240     debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
 241                  x, y, w, h, src_pitch);
 242 #endif
 243
 244     util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
 245                    priv->tex->format, transfer->stride, 0, 0, w, h,
 246                    (unsigned char*)src, src_pitch, 0, 0);
 247
 248     exa->scrn->transfer_unmap(exa->scrn, transfer);
 249     exa->scrn->tex_transfer_destroy(transfer);
 250
 251     return TRUE;
 252 }
 253
 254 static Bool
 255 ExaPrepareAccess(PixmapPtr pPix, int index)
 256 {
 257     ScreenPtr pScreen = pPix->drawable.pScreen;
 258     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 259     modesettingPtr ms = modesettingPTR(pScrn);
 260     struct exa_context *exa = ms->exa;
 261     struct exa_pixmap_priv *priv;
 262
 263     priv = exaGetPixmapDriverPrivate(pPix);
 264
 265     if (!priv)
 266         return FALSE;
 267
 268     if (!priv->tex)
 269         return FALSE;
 270
 271     if (priv->map_count == 0)
 272     {
 273         if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 274             PIPE_REFERENCED_FOR_WRITE)
 275             exa->pipe->flush(exa->pipe, 0, NULL);
 276
 277         assert(pPix->drawable.width <= priv->tex->width0);
 278         assert(pPix->drawable.height <= priv->tex->height0);
 279
 280         priv->map_transfer =
 281             exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 282 #ifdef EXA_MIXED_PIXMAPS
 283                                         PIPE_TRANSFER_MAP_DIRECTLY |
 284 #endif
 285                                         PIPE_TRANSFER_READ_WRITE,
 286                                         0, 0,
 287                                         pPix->drawable.width,
 288                                         pPix->drawable.height );
 289         if (!priv->map_transfer)
 290 #ifdef EXA_MIXED_PIXMAPS
 291             return FALSE;
 292 #else
 293             FatalError("failed to create transfer\n");
 294 #endif
 295
 296         pPix->devPrivate.ptr =
 297             exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
 298         pPix->devKind = priv->map_transfer->stride;
 299     }
 300
 301     priv->map_count++;
 302
 303     return TRUE;
 304 }
 305
 306 static void
 307 ExaFinishAccess(PixmapPtr pPix, int index)
 308 {
 309     ScreenPtr pScreen = pPix->drawable.pScreen;
 310     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 311     modesettingPtr ms = modesettingPTR(pScrn);
 312     struct exa_context *exa = ms->exa;
 313     struct exa_pixmap_priv *priv;
 314     priv = exaGetPixmapDriverPrivate(pPix);
 315
 316     if (!priv)
 317         return;
 318
 319     if (!priv->map_transfer)
 320         return;
 321
 322     if (--priv->map_count == 0) {
 323         assert(priv->map_transfer);
 324         exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
 325         exa->scrn->tex_transfer_destroy(priv->map_transfer);
 326         priv->map_transfer = NULL;
 327         pPix->devPrivate.ptr = NULL;
 328     }
 329 }
 330
 331 /***********************************************************************
 332  * Solid Fills
 333  */
 334
 335 static Bool
 336 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 337 {
 338     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 339     modesettingPtr ms = modesettingPTR(pScrn);
 340     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 341     struct exa_context *exa = ms->exa;
 342
 343 #if DEBUG_PRINT
 344     debug_printf("ExaPrepareSolid(0x%x)\n", fg);
 345 #endif
 346     if (!exa->accel)
 347         return FALSE;
 348
 349     if (!exa->pipe)
 350         XORG_FALLBACK("accle not enabled");
 351
 352     if (!priv || !priv->tex)
 353         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 354
 355     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 356         XORG_FALLBACK("planeMask is not solid");
 357
 358     if (alu != GXcopy)
 359         XORG_FALLBACK("not GXcopy");
 360
 361     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 362                                         priv->tex->target,
 363                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
 364         XORG_FALLBACK("format %s", pf_name(priv->tex->format));
 365     }
 366
 367     return xorg_solid_bind_state(exa, priv, fg);
 368 }
 369
 370 static void
 371 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 372 {
 373     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 374     modesettingPtr ms = modesettingPTR(pScrn);
 375     struct exa_context *exa = ms->exa;
 376     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 377
 378 #if DEBUG_PRINT
 379     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 380 #endif
 381
 382     if (x0 == 0 && y0 == 0 &&
 383         x1 == pPixmap->drawable.width && y1 == pPixmap->drawable.height) {
 384        exa->pipe->clear(exa->pipe, PIPE_CLEAR_COLOR, exa->solid_color, 0.0, 0);
 385        return;
 386     }
 387
 388     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 389 }
 390
 391
 392 static void
 393 ExaDoneSolid(PixmapPtr pPixmap)
 394 {
 395     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 396     modesettingPtr ms = modesettingPTR(pScrn);
 397     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 398     struct exa_context *exa = ms->exa;
 399
 400     if (!priv)
 401         return;
 402
 403     xorg_composite_done(exa);
 404 }
 405
 406 /***********************************************************************
 407  * Copy Blits
 408  */
 409
 410 static Bool
 411 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 412                int ydir, int alu, Pixel planeMask)
 413 {
 414     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 415     modesettingPtr ms = modesettingPTR(pScrn);
 416     struct exa_context *exa = ms->exa;
 417     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 418     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 419
 420 #if DEBUG_PRINT
 421     debug_printf("ExaPrepareCopy\n");
 422 #endif
 423
 424     if (!exa->accel)
 425         return FALSE;
 426
 427     if (!exa->pipe)
 428         XORG_FALLBACK("accle not enabled");
 429
 430     if (!priv || !priv->tex)
 431         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 432
 433     if (!src_priv || !src_priv->tex)
 434         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 435
 436     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 437         XORG_FALLBACK("planeMask is not solid");
 438
 439     if (alu != GXcopy)
 440         XORG_FALLBACK("alu not GXcopy");
 441
 442     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 443                                         priv->tex->target,
 444                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 445         XORG_FALLBACK("pDst format %s", pf_name(priv->tex->format));
 446
 447     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 448                                         src_priv->tex->target,
 449                                         PIPE_TEXTURE_USAGE_SAMPLER, 0))
 450         XORG_FALLBACK("pSrc format %s", pf_name(src_priv->tex->format));
 451
 452     exa->copy.src = src_priv;
 453     exa->copy.dst = priv;
 454
 455     /* For same-surface copies, the pipe->surface_copy path is clearly
 456      * superior, providing it is implemented.  In other cases it's not
 457      * clear what the better path would be, and eventually we'd
 458      * probably want to gather timings and choose dynamically.
 459      */
 460     if (exa->pipe->surface_copy &&
 461         exa->copy.src == exa->copy.dst) {
 462
 463        exa->copy.use_surface_copy = TRUE;
 464
 465        exa->copy.src_surface =
 466           exa->scrn->get_tex_surface( exa->scrn,
 467                                       exa->copy.src->tex,
 468                                       0, 0, 0,
 469                                       PIPE_BUFFER_USAGE_GPU_READ);
 470
 471        exa->copy.dst_surface =
 472           exa->scrn->get_tex_surface( exa->scrn,
 473                                       exa->copy.dst->tex,
 474                                       0, 0, 0,
 475                                       PIPE_BUFFER_USAGE_GPU_WRITE );
 476     }
 477     else {
 478        exa->copy.use_surface_copy = FALSE;
 479
 480        if (exa->copy.dst == exa->copy.src)
 481           exa->copy.src_texture = renderer_clone_texture( exa->renderer,
 482                                                           exa->copy.src->tex );
 483        else
 484           pipe_texture_reference(&exa->copy.src_texture,
 485                                  exa->copy.src->tex);
 486
 487        exa->copy.dst_surface =
 488           exa->scrn->get_tex_surface(exa->scrn,
 489                                      exa->copy.dst->tex,
 490                                      0, 0, 0,
 491                                      PIPE_BUFFER_USAGE_GPU_WRITE);
 492
 493
 494        renderer_copy_prepare(exa->renderer,
 495                              exa->copy.dst_surface,
 496                              exa->copy.src_texture );
 497     }
 498
 499
 500     return TRUE;
 501 }
 502
 503 static void
 504 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 505         int width, int height)
 506 {
 507    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 508    modesettingPtr ms = modesettingPTR(pScrn);
 509    struct exa_context *exa = ms->exa;
 510    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 511
 512 #if DEBUG_PRINT
 513    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 514                 srcX, srcY, dstX, dstY, width, height);
 515 #endif
 516
 517    debug_assert(priv == exa->copy.dst);
 518    (void) priv;
 519
 520    if (exa->copy.use_surface_copy) {
 521       /* XXX: consider exposing >1 box in surface_copy interface.
 522        */
 523       exa->pipe->surface_copy( exa->pipe,
 524                              exa->copy.dst_surface,
 525                              dstX, dstY,
 526                              exa->copy.src_surface,
 527                              srcX, srcY,
 528                              width, height );
 529    }
 530    else {
 531       renderer_copy_pixmap(exa->renderer,
 532                            dstX, dstY,
 533                            srcX, srcY,
 534                            width, height,
 535                            exa->copy.src_texture->width0,
 536                            exa->copy.src_texture->height0);
 537    }
 538 }
 539
 540 static void
 541 ExaDoneCopy(PixmapPtr pPixmap)
 542 {
 543     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 544     modesettingPtr ms = modesettingPTR(pScrn);
 545     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 546     struct exa_context *exa = ms->exa;
 547
 548     if (!priv)
 549         return;
 550
 551    renderer_draw_flush(exa->renderer);
 552
 553    exa->copy.src = NULL;
 554    exa->copy.dst = NULL;
 555    pipe_surface_reference(&exa->copy.src_surface, NULL);
 556    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 557    pipe_texture_reference(&exa->copy.src_texture, NULL);
 558 }
 559
 560
 561
 562 static Bool
 563 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 564 {
 565    if (pSrc->picture_format == pSrcPicture->format)
 566       return TRUE;
 567
 568    if (pSrc->picture_format != PICT_a8r8g8b8)
 569       return FALSE;
 570
 571    /* pSrc->picture_format == PICT_a8r8g8b8 */
 572    switch (pSrcPicture->format) {
 573    case PICT_a8r8g8b8:
 574    case PICT_x8r8g8b8:
 575    case PICT_a8b8g8r8:
 576    case PICT_x8b8g8r8:
 577    /* just treat these two as x8... */
 578    case PICT_r8g8b8:
 579    case PICT_b8g8r8:
 580       return TRUE;
 581 #ifdef PICT_TYPE_BGRA
 582    case PICT_b8g8r8a8:
 583    case PICT_b8g8r8x8:
 584       return FALSE; /* does not support swizzleing the alpha channel yet */
 585    case PICT_a2r10g10b10:
 586    case PICT_x2r10g10b10:
 587    case PICT_a2b10g10r10:
 588    case PICT_x2b10g10r10:
 589       return FALSE;
 590 #endif
 591    default:
 592       return FALSE;
 593    }
 594    return FALSE;
 595 }
 596
 597 /***********************************************************************
 598  * Composite entrypoints
 599  */
 600
 601 static Bool
 602 ExaCheckComposite(int op,
 603                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 604                   PicturePtr pDstPicture)
 605 {
 606    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 607    modesettingPtr ms = modesettingPTR(pScrn);
 608    struct exa_context *exa = ms->exa;
 609
 610 #if DEBUG_PRINT
 611    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 612                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 613 #endif
 614
 615    if (!exa->accel)
 616        return FALSE;
 617
 618    return xorg_composite_accelerated(op,
 619                                      pSrcPicture,
 620                                      pMaskPicture,
 621                                      pDstPicture);
 622 }
 623
 624
 625 static Bool
 626 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 627                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 628                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 629 {
 630    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 631    modesettingPtr ms = modesettingPTR(pScrn);
 632    struct exa_context *exa = ms->exa;
 633    struct exa_pixmap_priv *priv;
 634
 635    if (!exa->accel)
 636        return FALSE;
 637
 638 #if DEBUG_PRINT
 639    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 640                 op, pSrcPicture, pMaskPicture, pDstPicture);
 641    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 642                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 643                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 644                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 645 #endif
 646    if (!exa->pipe)
 647       XORG_FALLBACK("accle not enabled");
 648
 649    priv = exaGetPixmapDriverPrivate(pDst);
 650    if (!priv || !priv->tex)
 651       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 652
 653    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 654                                        priv->tex->target,
 655                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 656       XORG_FALLBACK("pDst format: %s", pf_name(priv->tex->format));
 657
 658    if (priv->picture_format != pDstPicture->format)
 659       XORG_FALLBACK("pDst pic_format: %s != %s",
 660                     render_format_name(priv->picture_format),
 661                     render_format_name(pDstPicture->format));
 662
 663    if (pSrc) {
 664       priv = exaGetPixmapDriverPrivate(pSrc);
 665       if (!priv || !priv->tex)
 666          XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
 667
 668       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 669                                           priv->tex->target,
 670                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 671          XORG_FALLBACK("pSrc format: %s", pf_name(priv->tex->format));
 672
 673       if (!picture_check_formats(priv, pSrcPicture))
 674          XORG_FALLBACK("pSrc pic_format: %s != %s",
 675                        render_format_name(priv->picture_format),
 676                        render_format_name(pSrcPicture->format));
 677
 678    }
 679
 680    if (pMask) {
 681       priv = exaGetPixmapDriverPrivate(pMask);
 682       if (!priv || !priv->tex)
 683          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 684
 685       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 686                                           priv->tex->target,
 687                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 688          XORG_FALLBACK("pMask format: %s", pf_name(priv->tex->format));
 689
 690       if (!picture_check_formats(priv, pMaskPicture))
 691          XORG_FALLBACK("pMask pic_format: %s != %s",
 692                        render_format_name(priv->picture_format),
 693                        render_format_name(pMaskPicture->format));
 694    }
 695
 696    return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 697                                     pDstPicture,
 698                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 699                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 700                                     exaGetPixmapDriverPrivate(pDst));
 701 }
 702
 703 static void
 704 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 705              int dstX, int dstY, int width, int height)
 706 {
 707    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 708    modesettingPtr ms = modesettingPTR(pScrn);
 709    struct exa_context *exa = ms->exa;
 710    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 711
 712 #if DEBUG_PRINT
 713    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 714                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 715    debug_printf("\t   Num bound samplers = %d\n",
 716                 exa->num_bound_samplers);
 717 #endif
 718
 719    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 720                   dstX, dstY, width, height);
 721 }
 722
 723
 724
 725 static void
 726 ExaDoneComposite(PixmapPtr pPixmap)
 727 {
 728    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 729    modesettingPtr ms = modesettingPTR(pScrn);
 730    struct exa_context *exa = ms->exa;
 731
 732    xorg_composite_done(exa);
 733 }
 734
 735
 736 /***********************************************************************
 737  * Pixmaps
 738  */
 739
 740 static void *
 741 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 742 {
 743     struct exa_pixmap_priv *priv;
 744
 745     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 746     if (!priv)
 747         return NULL;
 748
 749     return priv;
 750 }
 751
 752 static void
 753 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 754 {
 755     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 756
 757     if (!priv)
 758         return;
 759
 760     pipe_texture_reference(&priv->tex, NULL);
 761
 762     xfree(priv);
 763 }
 764
 765 static Bool
 766 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 767 {
 768     struct exa_pixmap_priv *priv;
 769
 770     priv = exaGetPixmapDriverPrivate(pPixmap);
 771
 772     if (!priv)
 773         return FALSE;
 774
 775     if (priv->tex)
 776         return TRUE;
 777
 778     return FALSE;
 779 }
 780
 781 int
 782 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 783 {
 784     struct exa_pixmap_priv *priv;
 785     priv = exaGetPixmapDriverPrivate(pPixmap);
 786
 787     if (!priv) {
 788         FatalError("NO PIXMAP PRIVATE\n");
 789         return 0;
 790     }
 791
 792     priv->flags |= PIPE_TEXTURE_USAGE_PRIMARY;
 793
 794     return 0;
 795 }
 796
 797 int
 798 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 799 {
 800     struct exa_pixmap_priv *priv;
 801     priv = exaGetPixmapDriverPrivate(pPixmap);
 802
 803     if (!priv) {
 804         FatalError("NO PIXMAP PRIVATE\n");
 805         return 0;
 806     }
 807
 808     priv->flags |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 809
 810     return 0;
 811 }
 812
 813
 814
 815 static Bool
 816 size_match( int width, int tex_width )
 817 {
 818 #if ROUND_UP_TEXTURES
 819    if (width > tex_width)
 820       return FALSE;
 821
 822    if (width * 2 < tex_width)
 823       return FALSE;
 824
 825    return TRUE;
 826 #else
 827    return width == tex_width;
 828 #endif
 829 }
 830
 831 static Bool
 832 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 833                       int depth, int bitsPerPixel, int devKind,
 834                       pointer pPixData)
 835 {
 836     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 837     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 838     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 839     modesettingPtr ms = modesettingPTR(pScrn);
 840     struct exa_context *exa = ms->exa;
 841
 842     if (!priv || pPixData)
 843         return FALSE;
 844
 845     if (0) {
 846        debug_printf("%s pixmap %p sz %dx%dx%d devKind %d\n",
 847                     __FUNCTION__, pPixmap, width, height, bitsPerPixel, devKind);
 848
 849        if (priv->tex)
 850           debug_printf("  ==> old texture %dx%d\n",
 851                        priv->tex->width0,
 852                        priv->tex->height0);
 853     }
 854
 855
 856     if (depth <= 0)
 857         depth = pPixmap->drawable.depth;
 858
 859     if (bitsPerPixel <= 0)
 860         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 861
 862     if (width <= 0)
 863         width = pPixmap->drawable.width;
 864
 865     if (height <= 0)
 866         height = pPixmap->drawable.height;
 867
 868     if (width <= 0 || height <= 0 || depth <= 0)
 869         return FALSE;
 870
 871     miModifyPixmapHeader(pPixmap, width, height, depth,
 872                              bitsPerPixel, devKind, NULL);
 873
 874     priv->width = width;
 875     priv->height = height;
 876
 877     /* Deal with screen resize */
 878     if ((exa->accel || priv->flags) &&
 879         (!priv->tex ||
 880          !size_match(width, priv->tex->width0) ||
 881          !size_match(height, priv->tex->height0) ||
 882          priv->tex_flags != priv->flags)) {
 883         struct pipe_texture *texture = NULL;
 884         struct pipe_texture template;
 885
 886         memset(&template, 0, sizeof(template));
 887         template.target = PIPE_TEXTURE_2D;
 888         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 889         if (ROUND_UP_TEXTURES && priv->flags == 0) {
 890            template.width0 = util_next_power_of_two(width);
 891            template.height0 = util_next_power_of_two(height);
 892         }
 893         else {
 894            template.width0 = width;
 895            template.height0 = height;
 896         }
 897
 898         template.depth0 = 1;
 899         template.last_level = 0;
 900         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 901         priv->tex_flags = priv->flags;
 902         texture = exa->scrn->texture_create(exa->scrn, &template);
 903
 904         if (priv->tex) {
 905             struct pipe_surface *dst_surf;
 906             struct pipe_surface *src_surf;
 907
 908             dst_surf = exa->scrn->get_tex_surface(
 909                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 910             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 911             if (exa->pipe->surface_copy) {
 912                exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 913                                        0, 0, min(width, texture->width0),
 914                                        min(height, texture->height0));
 915             } else {
 916                util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 917                                  0, 0, min(width, texture->width0),
 918                                  min(height, texture->height0));
 919             }
 920             exa->scrn->tex_surface_destroy(dst_surf);
 921             exa->scrn->tex_surface_destroy(src_surf);
 922         }
 923
 924         pipe_texture_reference(&priv->tex, texture);
 925         /* the texture we create has one reference */
 926         pipe_texture_reference(&texture, NULL);
 927     }
 928
 929     return TRUE;
 930 }
 931
 932 struct pipe_texture *
 933 xorg_exa_get_texture(PixmapPtr pPixmap)
 934 {
 935    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 936    struct pipe_texture *tex = NULL;
 937    pipe_texture_reference(&tex, priv->tex);
 938    return tex;
 939 }
 940
 941 Bool
 942 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 943 {
 944     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 945
 946     int mask = PIPE_TEXTURE_USAGE_PRIMARY | PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 947
 948     if (!priv)
 949         return FALSE;
 950
 951     if (pPixmap->drawable.width != tex->width0 ||
 952         pPixmap->drawable.height != tex->height0)
 953         return FALSE;
 954
 955     pipe_texture_reference(&priv->tex, tex);
 956     priv->tex_flags = tex->tex_usage & mask;
 957
 958     return TRUE;
 959 }
 960
 961 struct pipe_texture *
 962 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 963                              int width, int height,
 964                              int depth, int bitsPerPixel)
 965 {
 966     modesettingPtr ms = modesettingPTR(pScrn);
 967     struct exa_context *exa = ms->exa;
 968     struct pipe_texture template;
 969     int dummy;
 970
 971     memset(&template, 0, sizeof(template));
 972     template.target = PIPE_TEXTURE_2D;
 973     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 974     template.width0 = width;
 975     template.height0 = height;
 976     template.depth0 = 1;
 977     template.last_level = 0;
 978     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 979     template.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 980     template.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 981
 982     return exa->scrn->texture_create(exa->scrn, &template);
 983 }
 984
 985 void
 986 xorg_exa_close(ScrnInfoPtr pScrn)
 987 {
 988    modesettingPtr ms = modesettingPTR(pScrn);
 989    struct exa_context *exa = ms->exa;
 990
 991    renderer_destroy(exa->renderer);
 992
 993    if (exa->pipe)
 994       exa->pipe->destroy(exa->pipe);
 995    exa->pipe = NULL;
 996    /* Since this was shared be proper with the pointer */
 997    ms->ctx = NULL;
 998
 999    exaDriverFini(pScrn->pScreen);
1000    xfree(exa);
1001    ms->exa = NULL;
1002 }
1003
1004 void *
1005 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
1006 {
1007    modesettingPtr ms = modesettingPTR(pScrn);
1008    struct exa_context *exa;
1009    ExaDriverPtr pExa;
1010
1011    exa = xcalloc(1, sizeof(struct exa_context));
1012    if (!exa)
1013       return NULL;
1014
1015    pExa = exaDriverAlloc();
1016    if (!pExa) {
1017       goto out_err;
1018    }
1019
1020    memset(pExa, 0, sizeof(*pExa));
1021
1022    pExa->exa_major         = 2;
1023    pExa->exa_minor         = 2;
1024    pExa->memoryBase        = 0;
1025    pExa->memorySize        = 0;
1026    pExa->offScreenBase     = 0;
1027    pExa->pixmapOffsetAlign = 0;
1028    pExa->pixmapPitchAlign  = 1;
1029    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
1030 #ifdef EXA_SUPPORTS_PREPARE_AUX
1031    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
1032 #endif
1033 #ifdef EXA_MIXED_PIXMAPS
1034    pExa->flags            |= EXA_MIXED_PIXMAPS;
1035 #endif
1036    pExa->maxX              = 8191; /* FIXME */
1037    pExa->maxY              = 8191; /* FIXME */
1038
1039    pExa->WaitMarker         = ExaWaitMarker;
1040    pExa->MarkSync           = ExaMarkSync;
1041    pExa->PrepareSolid       = ExaPrepareSolid;
1042    pExa->Solid              = ExaSolid;
1043    pExa->DoneSolid          = ExaDoneSolid;
1044    pExa->PrepareCopy        = ExaPrepareCopy;
1045    pExa->Copy               = ExaCopy;
1046    pExa->DoneCopy           = ExaDoneCopy;
1047    pExa->CheckComposite     = ExaCheckComposite;
1048    pExa->PrepareComposite   = ExaPrepareComposite;
1049    pExa->Composite          = ExaComposite;
1050    pExa->DoneComposite      = ExaDoneComposite;
1051    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1052    pExa->DownloadFromScreen = ExaDownloadFromScreen;
1053    pExa->UploadToScreen     = ExaUploadToScreen;
1054    pExa->PrepareAccess      = ExaPrepareAccess;
1055    pExa->FinishAccess       = ExaFinishAccess;
1056    pExa->CreatePixmap       = ExaCreatePixmap;
1057    pExa->DestroyPixmap      = ExaDestroyPixmap;
1058    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1059
1060    if (!exaDriverInit(pScrn->pScreen, pExa)) {
1061       goto out_err;
1062    }
1063
1064    exa->scrn = ms->screen;
1065    exa->pipe = ms->api->create_context(ms->api, exa->scrn);
1066    /* Share context with DRI */
1067    ms->ctx = exa->pipe;
1068
1069    exa->renderer = renderer_create(exa->pipe);
1070    exa->accel = accel;
1071
1072    return (void *)exa;
1073
1074 out_err:
1075    xorg_exa_close(pScrn);
1076
1077    return NULL;
1078 }
1079
1080 struct pipe_surface *
1081 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1082 {
1083    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1084                                 PIPE_BUFFER_USAGE_GPU_READ |
1085                                 PIPE_BUFFER_USAGE_GPU_WRITE);
1086
1087 }
1088
1089 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1090                     struct pipe_fence_handle **fence)
1091 {
1092    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1093 }
1094
1095 void xorg_exa_finish(struct exa_context *exa)
1096 {
1097    struct pipe_fence_handle *fence = NULL;
1098
1099    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1100
1101    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1102    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1103 }
1104