src/gallium/state_trackers/xorg/xorg_exa.c

   1 /*
   2  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  *
  26  * Author: Alan Hourihane <alanh@tungstengraphics.com>
  27  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  28  *
  29  */
  30
  31 #include "xorg_exa.h"
  32 #include "xorg_tracker.h"
  33 #include "xorg_composite.h"
  34 #include "xorg_exa_tgsi.h"
  35
  36 #include <xorg-server.h>
  37 #include <xf86.h>
  38 #include <picturestr.h>
  39 #include <picture.h>
  40
  41 #include "pipe/p_format.h"
  42 #include "pipe/p_context.h"
  43 #include "pipe/p_state.h"
  44 #include "pipe/p_inlines.h"
  45
  46 #include "util/u_rect.h"
  47
  48 #define DEBUG_PRINT 0
  49
  50 /*
  51  * Helper functions
  52  */
  53 struct render_format_str {
  54    int format;
  55    const char *name;
  56 };
  57 static const struct render_format_str formats_info[] =
  58 {
  59    {PICT_a8r8g8b8, "PICT_a8r8g8b8"},
  60    {PICT_x8r8g8b8, "PICT_x8r8g8b8"},
  61    {PICT_a8b8g8r8, "PICT_a8b8g8r8"},
  62    {PICT_x8b8g8r8, "PICT_x8b8g8r8"},
  63 #ifdef PICT_TYPE_BGRA
  64    {PICT_b8g8r8a8, "PICT_b8g8r8a8"},
  65    {PICT_b8g8r8x8, "PICT_b8g8r8x8"},
  66    {PICT_a2r10g10b10, "PICT_a2r10g10b10"},
  67    {PICT_x2r10g10b10, "PICT_x2r10g10b10"},
  68    {PICT_a2b10g10r10, "PICT_a2b10g10r10"},
  69    {PICT_x2b10g10r10, "PICT_x2b10g10r10"},
  70 #endif
  71    {PICT_r8g8b8, "PICT_r8g8b8"},
  72    {PICT_b8g8r8, "PICT_b8g8r8"},
  73    {PICT_r5g6b5, "PICT_r5g6b5"},
  74    {PICT_b5g6r5, "PICT_b5g6r5"},
  75    {PICT_a1r5g5b5, "PICT_a1r5g5b5"},
  76    {PICT_x1r5g5b5, "PICT_x1r5g5b5"},
  77    {PICT_a1b5g5r5, "PICT_a1b5g5r5"},
  78    {PICT_x1b5g5r5, "PICT_x1b5g5r5"},
  79    {PICT_a4r4g4b4, "PICT_a4r4g4b4"},
  80    {PICT_x4r4g4b4, "PICT_x4r4g4b4"},
  81    {PICT_a4b4g4r4, "PICT_a4b4g4r4"},
  82    {PICT_x4b4g4r4, "PICT_x4b4g4r4"},
  83    {PICT_a8, "PICT_a8"},
  84    {PICT_r3g3b2, "PICT_r3g3b2"},
  85    {PICT_b2g3r3, "PICT_b2g3r3"},
  86    {PICT_a2r2g2b2, "PICT_a2r2g2b2"},
  87    {PICT_a2b2g2r2, "PICT_a2b2g2r2"},
  88    {PICT_c8, "PICT_c8"},
  89    {PICT_g8, "PICT_g8"},
  90    {PICT_x4a4, "PICT_x4a4"},
  91    {PICT_x4c4, "PICT_x4c4"},
  92    {PICT_x4g4, "PICT_x4g4"},
  93    {PICT_a4, "PICT_a4"},
  94    {PICT_r1g2b1, "PICT_r1g2b1"},
  95    {PICT_b1g2r1, "PICT_b1g2r1"},
  96    {PICT_a1r1g1b1, "PICT_a1r1g1b1"},
  97    {PICT_a1b1g1r1, "PICT_a1b1g1r1"},
  98    {PICT_c4, "PICT_c4"},
  99    {PICT_g4, "PICT_g4"},
 100    {PICT_a1, "PICT_a1"},
 101    {PICT_g1, "PICT_g1"}
 102 };
 103 static const char *render_format_name(int format)
 104 {
 105    int i = 0;
 106    for (i = 0; i < sizeof(formats_info)/sizeof(formats_info[0]); ++i) {
 107       if (formats_info[i].format == format)
 108          return formats_info[i].name;
 109    }
 110    return NULL;
 111 }
 112
 113 static void
 114 exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp, int *picture_format)
 115 {
 116     switch (depth) {
 117     case 32:
 118         *format = PIPE_FORMAT_A8R8G8B8_UNORM;
 119         *picture_format = PICT_a8r8g8b8;
 120         assert(*bbp == 32);
 121         break;
 122     case 24:
 123         *format = PIPE_FORMAT_X8R8G8B8_UNORM;
 124         *picture_format = PICT_x8r8g8b8;
 125         assert(*bbp == 32);
 126         break;
 127     case 16:
 128         *format = PIPE_FORMAT_R5G6B5_UNORM;
 129         *picture_format = PICT_r5g6b5;
 130         assert(*bbp == 16);
 131         break;
 132     case 15:
 133         *format = PIPE_FORMAT_A1R5G5B5_UNORM;
 134         *picture_format = PICT_x1r5g5b5;
 135         assert(*bbp == 16);
 136         break;
 137     case 8:
 138         *format = PIPE_FORMAT_L8_UNORM;
 139         *picture_format = PICT_a8;
 140         assert(*bbp == 8);
 141         break;
 142     case 4:
 143     case 1:
 144         *format = PIPE_FORMAT_A8R8G8B8_UNORM; /* bad bad bad */
 145         break;
 146     default:
 147         assert(0);
 148         break;
 149     }
 150 }
 151
 152
 153 /*
 154  * Static exported EXA functions
 155  */
 156
 157 static void
 158 ExaWaitMarker(ScreenPtr pScreen, int marker)
 159 {
 160    /* Nothing to do, handled in the PrepareAccess hook */
 161 }
 162
 163 static int
 164 ExaMarkSync(ScreenPtr pScreen)
 165 {
 166    return 1;
 167 }
 168
 169
 170 /***********************************************************************
 171  * Screen upload/download
 172  */
 173
 174 static Bool
 175 ExaDownloadFromScreen(PixmapPtr pPix, int x,  int y, int w,  int h, char *dst,
 176                       int dst_pitch)
 177 {
 178     ScreenPtr pScreen = pPix->drawable.pScreen;
 179     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 180     modesettingPtr ms = modesettingPTR(pScrn);
 181     struct exa_context *exa = ms->exa;
 182     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 183     struct pipe_transfer *transfer;
 184
 185     if (!priv || !priv->tex)
 186         return FALSE;
 187
 188     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 189         PIPE_REFERENCED_FOR_WRITE)
 190         exa->pipe->flush(exa->pipe, 0, NULL);
 191
 192     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 193                                            PIPE_TRANSFER_READ, x, y, w, h);
 194     if (!transfer)
 195         return FALSE;
 196
 197 #if DEBUG_PRINT
 198     debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
 199                  x, y, w, h, dst_pitch);
 200 #endif
 201
 202     util_copy_rect((unsigned char*)dst, &priv->tex->block, dst_pitch, 0, 0,
 203                    w, h, exa->scrn->transfer_map(exa->scrn, transfer),
 204                    transfer->stride, 0, 0);
 205
 206     exa->scrn->transfer_unmap(exa->scrn, transfer);
 207     exa->scrn->tex_transfer_destroy(transfer);
 208
 209     return TRUE;
 210 }
 211
 212 static Bool
 213 ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
 214                   int src_pitch)
 215 {
 216     ScreenPtr pScreen = pPix->drawable.pScreen;
 217     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 218     modesettingPtr ms = modesettingPTR(pScrn);
 219     struct exa_context *exa = ms->exa;
 220     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 221     struct pipe_transfer *transfer;
 222
 223     if (!priv || !priv->tex)
 224         return FALSE;
 225
 226     /* make sure that any pending operations are flushed to hardware */
 227     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 228         (PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE))
 229         xorg_exa_flush(exa, 0, NULL);
 230
 231     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 232                                            PIPE_TRANSFER_WRITE, x, y, w, h);
 233     if (!transfer)
 234         return FALSE;
 235
 236 #if DEBUG_PRINT
 237     debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
 238                  x, y, w, h, src_pitch);
 239 #endif
 240
 241     util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
 242                    &priv->tex->block, transfer->stride, 0, 0, w, h,
 243                    (unsigned char*)src, src_pitch, 0, 0);
 244
 245     exa->scrn->transfer_unmap(exa->scrn, transfer);
 246     exa->scrn->tex_transfer_destroy(transfer);
 247
 248     return TRUE;
 249 }
 250
 251 static Bool
 252 ExaPrepareAccess(PixmapPtr pPix, int index)
 253 {
 254     ScreenPtr pScreen = pPix->drawable.pScreen;
 255     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 256     modesettingPtr ms = modesettingPTR(pScrn);
 257     struct exa_context *exa = ms->exa;
 258     struct exa_pixmap_priv *priv;
 259
 260     priv = exaGetPixmapDriverPrivate(pPix);
 261
 262     if (!priv)
 263         return FALSE;
 264
 265     if (!priv->tex)
 266         return FALSE;
 267
 268     if (priv->map_count == 0)
 269     {
 270         if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 271             PIPE_REFERENCED_FOR_WRITE)
 272             exa->pipe->flush(exa->pipe, 0, NULL);
 273
 274         priv->map_transfer =
 275             exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 276 #ifdef EXA_MIXED_PIXMAPS
 277                                         PIPE_TRANSFER_MAP_DIRECTLY |
 278 #endif
 279                                         PIPE_TRANSFER_READ_WRITE,
 280                                         0, 0, priv->tex->width[0], priv->tex->height[0]);
 281         if (!priv->map_transfer)
 282 #ifdef EXA_MIXED_PIXMAPS
 283             return FALSE;
 284 #else
 285             FatalError("failed to create transfer\n");
 286 #endif
 287
 288         pPix->devPrivate.ptr =
 289             exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
 290         pPix->devKind = priv->map_transfer->stride;
 291     }
 292
 293     priv->map_count++;
 294
 295     return TRUE;
 296 }
 297
 298 static void
 299 ExaFinishAccess(PixmapPtr pPix, int index)
 300 {
 301     ScreenPtr pScreen = pPix->drawable.pScreen;
 302     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 303     modesettingPtr ms = modesettingPTR(pScrn);
 304     struct exa_context *exa = ms->exa;
 305     struct exa_pixmap_priv *priv;
 306     priv = exaGetPixmapDriverPrivate(pPix);
 307
 308     if (!priv)
 309         return;
 310
 311     if (!priv->map_transfer)
 312         return;
 313
 314     if (--priv->map_count == 0) {
 315         assert(priv->map_transfer);
 316         exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
 317         exa->scrn->tex_transfer_destroy(priv->map_transfer);
 318         priv->map_transfer = NULL;
 319         pPix->devPrivate.ptr = NULL;
 320     }
 321 }
 322
 323 /***********************************************************************
 324  * Solid Fills
 325  */
 326
 327 static Bool
 328 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 329 {
 330     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 331     modesettingPtr ms = modesettingPTR(pScrn);
 332     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 333     struct exa_context *exa = ms->exa;
 334
 335 #if DEBUG_PRINT
 336     debug_printf("ExaPrepareSolid(0x%x)\n", fg);
 337 #endif
 338     if (!exa->pipe)
 339         XORG_FALLBACK("accle not enabled");
 340
 341     if (!priv || !priv->tex)
 342         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 343
 344     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 345         XORG_FALLBACK("planeMask is not solid");
 346
 347     if (alu != GXcopy)
 348         XORG_FALLBACK("not GXcopy");
 349
 350     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 351                                         priv->tex->target,
 352                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
 353         XORG_FALLBACK("format %s", pf_name(priv->tex->format));
 354     }
 355
 356     return exa->accel && xorg_solid_bind_state(exa, priv, fg);
 357 }
 358
 359 static void
 360 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 361 {
 362     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 363     modesettingPtr ms = modesettingPTR(pScrn);
 364     struct exa_context *exa = ms->exa;
 365     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 366
 367 #if DEBUG_PRINT
 368     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 369 #endif
 370
 371     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 372 }
 373
 374
 375 static void
 376 ExaDoneSolid(PixmapPtr pPixmap)
 377 {
 378     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 379     modesettingPtr ms = modesettingPTR(pScrn);
 380     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 381     struct exa_context *exa = ms->exa;
 382
 383     if (!priv)
 384         return;
 385
 386     xorg_composite_done(exa);
 387 }
 388
 389 /***********************************************************************
 390  * Copy Blits
 391  */
 392
 393 static Bool
 394 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 395                int ydir, int alu, Pixel planeMask)
 396 {
 397     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 398     modesettingPtr ms = modesettingPTR(pScrn);
 399     struct exa_context *exa = ms->exa;
 400     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 401     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 402
 403 #if DEBUG_PRINT
 404     debug_printf("ExaPrepareCopy\n");
 405 #endif
 406     if (!exa->pipe)
 407         XORG_FALLBACK("accle not enabled");
 408
 409     if (!priv || !priv->tex)
 410         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 411
 412     if (!src_priv || !src_priv->tex)
 413         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 414
 415     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 416         XORG_FALLBACK("planeMask is not solid");
 417
 418     if (alu != GXcopy)
 419         XORG_FALLBACK("alu not GXcopy");
 420
 421     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 422                                         priv->tex->target,
 423                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 424         XORG_FALLBACK("pDst format %s", pf_name(priv->tex->format));
 425
 426     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 427                                         src_priv->tex->target,
 428                                         PIPE_TEXTURE_USAGE_SAMPLER, 0))
 429         XORG_FALLBACK("pSrc format %s", pf_name(src_priv->tex->format));
 430
 431     exa->copy.src = src_priv;
 432     exa->copy.dst = priv;
 433
 434     /* For same-surface copies, the pipe->surface_copy path is clearly
 435      * superior, providing it is implemented.  In other cases it's not
 436      * clear what the better path would be, and eventually we'd
 437      * probably want to gather timings and choose dynamically.
 438      */
 439     if (exa->pipe->surface_copy &&
 440         exa->copy.src == exa->copy.dst) {
 441
 442        exa->copy.use_surface_copy = TRUE;
 443
 444        exa->copy.src_surface =
 445           exa->scrn->get_tex_surface( exa->scrn,
 446                                       exa->copy.src->tex,
 447                                       0, 0, 0,
 448                                       PIPE_BUFFER_USAGE_GPU_READ);
 449
 450        exa->copy.dst_surface =
 451           exa->scrn->get_tex_surface( exa->scrn,
 452                                       exa->copy.dst->tex,
 453                                       0, 0, 0,
 454                                       PIPE_BUFFER_USAGE_GPU_WRITE );
 455     }
 456     else {
 457        exa->copy.use_surface_copy = FALSE;
 458
 459        if (exa->copy.dst == exa->copy.src)
 460           exa->copy.src_texture = renderer_clone_texture( exa->renderer,
 461                                                           exa->copy.src->tex );
 462        else
 463           pipe_texture_reference(&exa->copy.src_texture,
 464                                  exa->copy.src->tex);
 465
 466        exa->copy.dst_surface =
 467           exa->scrn->get_tex_surface(exa->scrn,
 468                                      exa->copy.dst->tex,
 469                                      0, 0, 0,
 470                                      PIPE_BUFFER_USAGE_GPU_WRITE);
 471
 472
 473        renderer_copy_prepare(exa->renderer,
 474                              exa->copy.dst_surface,
 475                              exa->copy.src_texture );
 476     }
 477
 478
 479     return exa->accel;
 480 }
 481
 482 static void
 483 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 484         int width, int height)
 485 {
 486    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 487    modesettingPtr ms = modesettingPTR(pScrn);
 488    struct exa_context *exa = ms->exa;
 489    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 490
 491 #if DEBUG_PRINT
 492    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 493                 srcX, srcY, dstX, dstY, width, height);
 494 #endif
 495
 496    debug_assert(priv == exa->copy.dst);
 497
 498    if (exa->copy.use_surface_copy) {
 499       /* XXX: consider exposing >1 box in surface_copy interface.
 500        */
 501       exa->pipe->surface_copy( exa->pipe,
 502                              exa->copy.dst_surface,
 503                              dstX, dstY,
 504                              exa->copy.src_surface,
 505                              srcX, srcY,
 506                              width, height );
 507    }
 508    else {
 509       renderer_copy_pixmap(exa->renderer,
 510                            dstX, dstY,
 511                            srcX, srcY,
 512                            width, height,
 513                            exa->copy.src_texture->width[0],
 514                            exa->copy.src_texture->height[0]);
 515    }
 516 }
 517
 518 static void
 519 ExaDoneCopy(PixmapPtr pPixmap)
 520 {
 521     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 522     modesettingPtr ms = modesettingPTR(pScrn);
 523     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 524     struct exa_context *exa = ms->exa;
 525
 526     if (!priv)
 527         return;
 528
 529    renderer_draw_flush(exa->renderer);
 530
 531    exa->copy.src = NULL;
 532    exa->copy.dst = NULL;
 533    pipe_surface_reference(&exa->copy.src_surface, NULL);
 534    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 535    pipe_texture_reference(&exa->copy.src_texture, NULL);
 536 }
 537
 538
 539
 540 static Bool
 541 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 542 {
 543    if (pSrc->picture_format == pSrcPicture->format)
 544       return TRUE;
 545
 546    if (pSrc->picture_format != PICT_a8r8g8b8)
 547       return FALSE;
 548
 549    /* pSrc->picture_format == PICT_a8r8g8b8 */
 550    switch (pSrcPicture->format) {
 551    case PICT_a8r8g8b8:
 552    case PICT_x8r8g8b8:
 553    case PICT_a8b8g8r8:
 554    case PICT_x8b8g8r8:
 555    /* just treat these two as x8... */
 556    case PICT_r8g8b8:
 557    case PICT_b8g8r8:
 558       return TRUE;
 559 #ifdef PICT_TYPE_BGRA
 560    case PICT_b8g8r8a8:
 561    case PICT_b8g8r8x8:
 562       return FALSE; /* does not support swizzleing the alpha channel yet */
 563    case PICT_a2r10g10b10:
 564    case PICT_x2r10g10b10:
 565    case PICT_a2b10g10r10:
 566    case PICT_x2b10g10r10:
 567       return FALSE;
 568 #endif
 569    default:
 570       return FALSE;
 571    }
 572    return FALSE;
 573 }
 574
 575 /***********************************************************************
 576  * Composite entrypoints
 577  */
 578
 579 static Bool
 580 ExaCheckComposite(int op,
 581                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 582                   PicturePtr pDstPicture)
 583 {
 584    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 585    modesettingPtr ms = modesettingPTR(pScrn);
 586    struct exa_context *exa = ms->exa;
 587    boolean accelerated = xorg_composite_accelerated(op,
 588                                                     pSrcPicture,
 589                                                     pMaskPicture,
 590                                                     pDstPicture);
 591 #if DEBUG_PRINT
 592    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 593                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 594 #endif
 595    return exa->accel && accelerated;
 596 }
 597
 598
 599 static Bool
 600 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 601                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 602                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 603 {
 604    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 605    modesettingPtr ms = modesettingPTR(pScrn);
 606    struct exa_context *exa = ms->exa;
 607    struct exa_pixmap_priv *priv;
 608
 609 #if DEBUG_PRINT
 610    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 611                 op, pSrcPicture, pMaskPicture, pDstPicture);
 612    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 613                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 614                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 615                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 616 #endif
 617    if (!exa->pipe)
 618       XORG_FALLBACK("accle not enabled");
 619
 620    priv = exaGetPixmapDriverPrivate(pDst);
 621    if (!priv || !priv->tex)
 622       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 623
 624    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 625                                        priv->tex->target,
 626                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 627       XORG_FALLBACK("pDst format: %s", pf_name(priv->tex->format));
 628
 629    if (priv->picture_format != pDstPicture->format)
 630       XORG_FALLBACK("pDst pic_format: %s != %s",
 631                     render_format_name(priv->picture_format),
 632                     render_format_name(pDstPicture->format));
 633
 634    if (pSrc) {
 635       priv = exaGetPixmapDriverPrivate(pSrc);
 636       if (!priv || !priv->tex)
 637          XORG_FALLBACK("pSrc %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_SAMPLER, 0))
 642          XORG_FALLBACK("pSrc format: %s", pf_name(priv->tex->format));
 643
 644       if (!picture_check_formats(priv, pSrcPicture))
 645          XORG_FALLBACK("pSrc pic_format: %s != %s",
 646                        render_format_name(priv->picture_format),
 647                        render_format_name(pSrcPicture->format));
 648
 649    }
 650
 651    if (pMask) {
 652       priv = exaGetPixmapDriverPrivate(pMask);
 653       if (!priv || !priv->tex)
 654          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 655
 656       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 657                                           priv->tex->target,
 658                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 659          XORG_FALLBACK("pMask format: %s", pf_name(priv->tex->format));
 660
 661       if (!picture_check_formats(priv, pMaskPicture))
 662          XORG_FALLBACK("pMask pic_format: %s != %s",
 663                        render_format_name(priv->picture_format),
 664                        render_format_name(pMaskPicture->format));
 665    }
 666
 667    return exa->accel &&
 668           xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 669                                     pDstPicture,
 670                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 671                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 672                                     exaGetPixmapDriverPrivate(pDst));
 673 }
 674
 675 static void
 676 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 677              int dstX, int dstY, int width, int height)
 678 {
 679    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 680    modesettingPtr ms = modesettingPTR(pScrn);
 681    struct exa_context *exa = ms->exa;
 682    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 683
 684 #if DEBUG_PRINT
 685    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 686                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 687    debug_printf("\t   Num bound samplers = %d\n",
 688                 exa->num_bound_samplers);
 689 #endif
 690
 691    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 692                   dstX, dstY, width, height);
 693 }
 694
 695
 696
 697 static void
 698 ExaDoneComposite(PixmapPtr pPixmap)
 699 {
 700    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 701    modesettingPtr ms = modesettingPTR(pScrn);
 702    struct exa_context *exa = ms->exa;
 703
 704    xorg_composite_done(exa);
 705 }
 706
 707
 708 /***********************************************************************
 709  * Pixmaps
 710  */
 711
 712 static void *
 713 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 714 {
 715     struct exa_pixmap_priv *priv;
 716
 717     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 718     if (!priv)
 719         return NULL;
 720
 721     return priv;
 722 }
 723
 724 static void
 725 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 726 {
 727     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 728
 729     if (!priv)
 730         return;
 731
 732     pipe_texture_reference(&priv->tex, NULL);
 733
 734     xfree(priv);
 735 }
 736
 737 static Bool
 738 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 739 {
 740     struct exa_pixmap_priv *priv;
 741
 742     priv = exaGetPixmapDriverPrivate(pPixmap);
 743
 744     if (!priv)
 745         return FALSE;
 746
 747     if (priv->tex)
 748         return TRUE;
 749
 750     return FALSE;
 751 }
 752
 753 int
 754 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 755 {
 756     struct exa_pixmap_priv *priv;
 757     priv = exaGetPixmapDriverPrivate(pPixmap);
 758
 759     if (!priv) {
 760         FatalError("NO PIXMAP PRIVATE\n");
 761         return 0;
 762     }
 763
 764     priv->flags |= PIPE_TEXTURE_USAGE_PRIMARY;
 765
 766     return 0;
 767 }
 768
 769 int
 770 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 771 {
 772     struct exa_pixmap_priv *priv;
 773     priv = exaGetPixmapDriverPrivate(pPixmap);
 774
 775     if (!priv) {
 776         FatalError("NO PIXMAP PRIVATE\n");
 777         return 0;
 778     }
 779
 780     priv->flags |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 781
 782     return 0;
 783 }
 784
 785 unsigned
 786 xorg_exa_get_pixmap_handle(PixmapPtr pPixmap, unsigned *stride_out)
 787 {
 788     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 789     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 790     modesettingPtr ms = modesettingPTR(pScrn);
 791     struct exa_pixmap_priv *priv;
 792     unsigned handle;
 793     unsigned stride;
 794
 795     if (!ms->exa) {
 796         FatalError("NO MS->EXA\n");
 797         return 0;
 798     }
 799
 800     priv = exaGetPixmapDriverPrivate(pPixmap);
 801
 802     if (!priv) {
 803         FatalError("NO PIXMAP PRIVATE\n");
 804         return 0;
 805     }
 806
 807     ms->api->local_handle_from_texture(ms->api, ms->screen, priv->tex, &stride, &handle);
 808     if (stride_out)
 809         *stride_out = stride;
 810
 811     return handle;
 812 }
 813
 814 static Bool
 815 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 816                       int depth, int bitsPerPixel, int devKind,
 817                       pointer pPixData)
 818 {
 819     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 820     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 821     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 822     modesettingPtr ms = modesettingPTR(pScrn);
 823     struct exa_context *exa = ms->exa;
 824
 825     if (!priv || pPixData)
 826         return FALSE;
 827
 828     if (depth <= 0)
 829         depth = pPixmap->drawable.depth;
 830
 831     if (bitsPerPixel <= 0)
 832         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 833
 834     if (width <= 0)
 835         width = pPixmap->drawable.width;
 836
 837     if (height <= 0)
 838         height = pPixmap->drawable.height;
 839
 840     if (width <= 0 || height <= 0 || depth <= 0)
 841         return FALSE;
 842
 843     miModifyPixmapHeader(pPixmap, width, height, depth,
 844                              bitsPerPixel, devKind, NULL);
 845
 846     /* Deal with screen resize */
 847     if ((exa->accel || priv->flags) &&
 848         (!priv->tex ||
 849          (priv->tex->width[0] != width ||
 850           priv->tex->height[0] != height ||
 851           priv->tex_flags != priv->flags))) {
 852         struct pipe_texture *texture = NULL;
 853         struct pipe_texture template;
 854
 855         memset(&template, 0, sizeof(template));
 856         template.target = PIPE_TEXTURE_2D;
 857         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 858         pf_get_block(template.format, &template.block);
 859         template.width[0] = width;
 860         template.height[0] = height;
 861         template.depth[0] = 1;
 862         template.last_level = 0;
 863         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 864         priv->tex_flags = priv->flags;
 865         texture = exa->scrn->texture_create(exa->scrn, &template);
 866
 867         if (priv->tex) {
 868             struct pipe_surface *dst_surf;
 869             struct pipe_surface *src_surf;
 870
 871             dst_surf = exa->scrn->get_tex_surface(
 872                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 873             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 874         if (exa->pipe->surface_copy) {
 875             exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 876                         0, 0, min(width, texture->width[0]),
 877                         min(height, texture->height[0]));
 878         } else {
 879             util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 880                         0, 0, min(width, texture->width[0]),
 881                         min(height, texture->height[0]));
 882         }
 883             exa->scrn->tex_surface_destroy(dst_surf);
 884             exa->scrn->tex_surface_destroy(src_surf);
 885         }
 886
 887         pipe_texture_reference(&priv->tex, texture);
 888         /* the texture we create has one reference */
 889         pipe_texture_reference(&texture, NULL);
 890     }
 891
 892     return TRUE;
 893 }
 894
 895 struct pipe_texture *
 896 xorg_exa_get_texture(PixmapPtr pPixmap)
 897 {
 898    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 899    struct pipe_texture *tex = NULL;
 900    pipe_texture_reference(&tex, priv->tex);
 901    return tex;
 902 }
 903
 904 Bool
 905 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 906 {
 907     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 908
 909     int mask = PIPE_TEXTURE_USAGE_PRIMARY | PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 910
 911     if (!priv)
 912         return FALSE;
 913
 914     if (pPixmap->drawable.width != tex->width[0] ||
 915         pPixmap->drawable.height != tex->height[0])
 916         return FALSE;
 917
 918     pipe_texture_reference(&priv->tex, tex);
 919     priv->tex_flags = tex->tex_usage & mask;
 920
 921     return TRUE;
 922 }
 923
 924 struct pipe_texture *
 925 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 926                              int width, int height,
 927                              int depth, int bitsPerPixel)
 928 {
 929     modesettingPtr ms = modesettingPTR(pScrn);
 930     struct exa_context *exa = ms->exa;
 931     struct pipe_texture template;
 932     int dummy;
 933
 934     memset(&template, 0, sizeof(template));
 935     template.target = PIPE_TEXTURE_2D;
 936     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 937     pf_get_block(template.format, &template.block);
 938     template.width[0] = width;
 939     template.height[0] = height;
 940     template.depth[0] = 1;
 941     template.last_level = 0;
 942     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 943     template.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 944     template.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 945
 946     return exa->scrn->texture_create(exa->scrn, &template);
 947 }
 948
 949 void
 950 xorg_exa_close(ScrnInfoPtr pScrn)
 951 {
 952    modesettingPtr ms = modesettingPTR(pScrn);
 953    struct exa_context *exa = ms->exa;
 954
 955    renderer_destroy(exa->renderer);
 956
 957    if (exa->pipe)
 958       exa->pipe->destroy(exa->pipe);
 959
 960    exaDriverFini(pScrn->pScreen);
 961    xfree(exa);
 962    ms->exa = NULL;
 963 }
 964
 965 void *
 966 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
 967 {
 968    modesettingPtr ms = modesettingPTR(pScrn);
 969    struct exa_context *exa;
 970    ExaDriverPtr pExa;
 971
 972    exa = xcalloc(1, sizeof(struct exa_context));
 973    if (!exa)
 974       return NULL;
 975
 976    pExa = exaDriverAlloc();
 977    if (!pExa) {
 978       goto out_err;
 979    }
 980
 981    memset(pExa, 0, sizeof(*pExa));
 982
 983    pExa->exa_major         = 2;
 984    pExa->exa_minor         = 2;
 985    pExa->memoryBase        = 0;
 986    pExa->memorySize        = 0;
 987    pExa->offScreenBase     = 0;
 988    pExa->pixmapOffsetAlign = 0;
 989    pExa->pixmapPitchAlign  = 1;
 990    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
 991 #ifdef EXA_SUPPORTS_PREPARE_AUX
 992    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
 993 #endif
 994 #ifdef EXA_MIXED_PIXMAPS
 995    pExa->flags            |= EXA_MIXED_PIXMAPS;
 996 #endif
 997    pExa->maxX              = 8191; /* FIXME */
 998    pExa->maxY              = 8191; /* FIXME */
 999
1000    pExa->WaitMarker         = ExaWaitMarker;
1001    pExa->MarkSync           = ExaMarkSync;
1002    pExa->PrepareSolid       = ExaPrepareSolid;
1003    pExa->Solid              = ExaSolid;
1004    pExa->DoneSolid          = ExaDoneSolid;
1005    pExa->PrepareCopy        = ExaPrepareCopy;
1006    pExa->Copy               = ExaCopy;
1007    pExa->DoneCopy           = ExaDoneCopy;
1008    pExa->CheckComposite     = ExaCheckComposite;
1009    pExa->PrepareComposite   = ExaPrepareComposite;
1010    pExa->Composite          = ExaComposite;
1011    pExa->DoneComposite      = ExaDoneComposite;
1012    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1013    pExa->DownloadFromScreen = ExaDownloadFromScreen;
1014    pExa->UploadToScreen     = ExaUploadToScreen;
1015    pExa->PrepareAccess      = ExaPrepareAccess;
1016    pExa->FinishAccess       = ExaFinishAccess;
1017    pExa->CreatePixmap       = ExaCreatePixmap;
1018    pExa->DestroyPixmap      = ExaDestroyPixmap;
1019    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1020
1021    if (!exaDriverInit(pScrn->pScreen, pExa)) {
1022       goto out_err;
1023    }
1024
1025    exa->scrn = ms->screen;
1026    exa->pipe = ms->api->create_context(ms->api, exa->scrn);
1027    /* Share context with DRI */
1028    ms->ctx = exa->pipe;
1029
1030    exa->renderer = renderer_create(exa->pipe);
1031    exa->accel = accel;
1032
1033    return (void *)exa;
1034
1035 out_err:
1036    xorg_exa_close(pScrn);
1037
1038    return NULL;
1039 }
1040
1041 struct pipe_surface *
1042 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1043 {
1044    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1045                                 PIPE_BUFFER_USAGE_GPU_READ |
1046                                 PIPE_BUFFER_USAGE_GPU_WRITE);
1047
1048 }
1049
1050 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1051                     struct pipe_fence_handle **fence)
1052 {
1053    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1054 }
1055
1056 void xorg_exa_finish(struct exa_context *exa)
1057 {
1058    struct pipe_fence_handle *fence = NULL;
1059
1060    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1061
1062    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1063    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1064 }
1065