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 #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->pipe)
 347         XORG_FALLBACK("accle not enabled");
 348
 349     if (!priv || !priv->tex)
 350         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 351
 352     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 353         XORG_FALLBACK("planeMask is not solid");
 354
 355     if (alu != GXcopy)
 356         XORG_FALLBACK("not GXcopy");
 357
 358     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 359                                         priv->tex->target,
 360                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
 361         XORG_FALLBACK("format %s", pf_name(priv->tex->format));
 362     }
 363
 364     return exa->accel && xorg_solid_bind_state(exa, priv, fg);
 365 }
 366
 367 static void
 368 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 369 {
 370     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 371     modesettingPtr ms = modesettingPTR(pScrn);
 372     struct exa_context *exa = ms->exa;
 373     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 374
 375 #if DEBUG_PRINT
 376     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 377 #endif
 378
 379     if (x0 == 0 && y0 == 0 &&
 380         x1 == pPixmap->drawable.width && y1 == pPixmap->drawable.height) {
 381        exa->pipe->clear(exa->pipe, PIPE_CLEAR_COLOR, exa->solid_color, 0.0, 0);
 382        return;
 383     }
 384
 385     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 386 }
 387
 388
 389 static void
 390 ExaDoneSolid(PixmapPtr pPixmap)
 391 {
 392     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 393     modesettingPtr ms = modesettingPTR(pScrn);
 394     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 395     struct exa_context *exa = ms->exa;
 396
 397     if (!priv)
 398         return;
 399
 400     xorg_composite_done(exa);
 401 }
 402
 403 /***********************************************************************
 404  * Copy Blits
 405  */
 406
 407 static Bool
 408 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 409                int ydir, int alu, Pixel planeMask)
 410 {
 411     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 412     modesettingPtr ms = modesettingPTR(pScrn);
 413     struct exa_context *exa = ms->exa;
 414     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 415     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 416
 417 #if DEBUG_PRINT
 418     debug_printf("ExaPrepareCopy\n");
 419 #endif
 420     if (!exa->pipe)
 421         XORG_FALLBACK("accle not enabled");
 422
 423     if (!priv || !priv->tex)
 424         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 425
 426     if (!src_priv || !src_priv->tex)
 427         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 428
 429     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 430         XORG_FALLBACK("planeMask is not solid");
 431
 432     if (alu != GXcopy)
 433         XORG_FALLBACK("alu not GXcopy");
 434
 435     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 436                                         priv->tex->target,
 437                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 438         XORG_FALLBACK("pDst format %s", pf_name(priv->tex->format));
 439
 440     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 441                                         src_priv->tex->target,
 442                                         PIPE_TEXTURE_USAGE_SAMPLER, 0))
 443         XORG_FALLBACK("pSrc format %s", pf_name(src_priv->tex->format));
 444
 445     exa->copy.src = src_priv;
 446     exa->copy.dst = priv;
 447
 448     /* For same-surface copies, the pipe->surface_copy path is clearly
 449      * superior, providing it is implemented.  In other cases it's not
 450      * clear what the better path would be, and eventually we'd
 451      * probably want to gather timings and choose dynamically.
 452      */
 453     if (exa->pipe->surface_copy &&
 454         exa->copy.src == exa->copy.dst) {
 455
 456        exa->copy.use_surface_copy = TRUE;
 457
 458        exa->copy.src_surface =
 459           exa->scrn->get_tex_surface( exa->scrn,
 460                                       exa->copy.src->tex,
 461                                       0, 0, 0,
 462                                       PIPE_BUFFER_USAGE_GPU_READ);
 463
 464        exa->copy.dst_surface =
 465           exa->scrn->get_tex_surface( exa->scrn,
 466                                       exa->copy.dst->tex,
 467                                       0, 0, 0,
 468                                       PIPE_BUFFER_USAGE_GPU_WRITE );
 469     }
 470     else {
 471        exa->copy.use_surface_copy = FALSE;
 472
 473        if (exa->copy.dst == exa->copy.src)
 474           exa->copy.src_texture = renderer_clone_texture( exa->renderer,
 475                                                           exa->copy.src->tex );
 476        else
 477           pipe_texture_reference(&exa->copy.src_texture,
 478                                  exa->copy.src->tex);
 479
 480        exa->copy.dst_surface =
 481           exa->scrn->get_tex_surface(exa->scrn,
 482                                      exa->copy.dst->tex,
 483                                      0, 0, 0,
 484                                      PIPE_BUFFER_USAGE_GPU_WRITE);
 485
 486
 487        renderer_copy_prepare(exa->renderer,
 488                              exa->copy.dst_surface,
 489                              exa->copy.src_texture );
 490     }
 491
 492
 493     return exa->accel;
 494 }
 495
 496 static void
 497 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 498         int width, int height)
 499 {
 500    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 501    modesettingPtr ms = modesettingPTR(pScrn);
 502    struct exa_context *exa = ms->exa;
 503    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 504
 505 #if DEBUG_PRINT
 506    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 507                 srcX, srcY, dstX, dstY, width, height);
 508 #endif
 509
 510    debug_assert(priv == exa->copy.dst);
 511
 512    if (exa->copy.use_surface_copy) {
 513       /* XXX: consider exposing >1 box in surface_copy interface.
 514        */
 515       exa->pipe->surface_copy( exa->pipe,
 516                              exa->copy.dst_surface,
 517                              dstX, dstY,
 518                              exa->copy.src_surface,
 519                              srcX, srcY,
 520                              width, height );
 521    }
 522    else {
 523       renderer_copy_pixmap(exa->renderer,
 524                            dstX, dstY,
 525                            srcX, srcY,
 526                            width, height,
 527                            exa->copy.src_texture->width0,
 528                            exa->copy.src_texture->height0);
 529    }
 530 }
 531
 532 static void
 533 ExaDoneCopy(PixmapPtr pPixmap)
 534 {
 535     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 536     modesettingPtr ms = modesettingPTR(pScrn);
 537     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 538     struct exa_context *exa = ms->exa;
 539
 540     if (!priv)
 541         return;
 542
 543    renderer_draw_flush(exa->renderer);
 544
 545    exa->copy.src = NULL;
 546    exa->copy.dst = NULL;
 547    pipe_surface_reference(&exa->copy.src_surface, NULL);
 548    pipe_surface_reference(&exa->copy.dst_surface, NULL);
 549    pipe_texture_reference(&exa->copy.src_texture, NULL);
 550 }
 551
 552
 553
 554 static Bool
 555 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 556 {
 557    if (pSrc->picture_format == pSrcPicture->format)
 558       return TRUE;
 559
 560    if (pSrc->picture_format != PICT_a8r8g8b8)
 561       return FALSE;
 562
 563    /* pSrc->picture_format == PICT_a8r8g8b8 */
 564    switch (pSrcPicture->format) {
 565    case PICT_a8r8g8b8:
 566    case PICT_x8r8g8b8:
 567    case PICT_a8b8g8r8:
 568    case PICT_x8b8g8r8:
 569    /* just treat these two as x8... */
 570    case PICT_r8g8b8:
 571    case PICT_b8g8r8:
 572       return TRUE;
 573 #ifdef PICT_TYPE_BGRA
 574    case PICT_b8g8r8a8:
 575    case PICT_b8g8r8x8:
 576       return FALSE; /* does not support swizzleing the alpha channel yet */
 577    case PICT_a2r10g10b10:
 578    case PICT_x2r10g10b10:
 579    case PICT_a2b10g10r10:
 580    case PICT_x2b10g10r10:
 581       return FALSE;
 582 #endif
 583    default:
 584       return FALSE;
 585    }
 586    return FALSE;
 587 }
 588
 589 /***********************************************************************
 590  * Composite entrypoints
 591  */
 592
 593 static Bool
 594 ExaCheckComposite(int op,
 595                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 596                   PicturePtr pDstPicture)
 597 {
 598    ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
 599    modesettingPtr ms = modesettingPTR(pScrn);
 600    struct exa_context *exa = ms->exa;
 601    boolean accelerated = xorg_composite_accelerated(op,
 602                                                     pSrcPicture,
 603                                                     pMaskPicture,
 604                                                     pDstPicture);
 605 #if DEBUG_PRINT
 606    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 607                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 608 #endif
 609    return exa->accel && accelerated;
 610 }
 611
 612
 613 static Bool
 614 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 615                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 616                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 617 {
 618    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 619    modesettingPtr ms = modesettingPTR(pScrn);
 620    struct exa_context *exa = ms->exa;
 621    struct exa_pixmap_priv *priv;
 622
 623 #if DEBUG_PRINT
 624    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 625                 op, pSrcPicture, pMaskPicture, pDstPicture);
 626    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 627                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 628                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 629                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 630 #endif
 631    if (!exa->pipe)
 632       XORG_FALLBACK("accle not enabled");
 633
 634    priv = exaGetPixmapDriverPrivate(pDst);
 635    if (!priv || !priv->tex)
 636       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 637
 638    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 639                                        priv->tex->target,
 640                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 641       XORG_FALLBACK("pDst format: %s", pf_name(priv->tex->format));
 642
 643    if (priv->picture_format != pDstPicture->format)
 644       XORG_FALLBACK("pDst pic_format: %s != %s",
 645                     render_format_name(priv->picture_format),
 646                     render_format_name(pDstPicture->format));
 647
 648    if (pSrc) {
 649       priv = exaGetPixmapDriverPrivate(pSrc);
 650       if (!priv || !priv->tex)
 651          XORG_FALLBACK("pSrc %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_SAMPLER, 0))
 656          XORG_FALLBACK("pSrc format: %s", pf_name(priv->tex->format));
 657
 658       if (!picture_check_formats(priv, pSrcPicture))
 659          XORG_FALLBACK("pSrc pic_format: %s != %s",
 660                        render_format_name(priv->picture_format),
 661                        render_format_name(pSrcPicture->format));
 662
 663    }
 664
 665    if (pMask) {
 666       priv = exaGetPixmapDriverPrivate(pMask);
 667       if (!priv || !priv->tex)
 668          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 669
 670       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 671                                           priv->tex->target,
 672                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 673          XORG_FALLBACK("pMask format: %s", pf_name(priv->tex->format));
 674
 675       if (!picture_check_formats(priv, pMaskPicture))
 676          XORG_FALLBACK("pMask pic_format: %s != %s",
 677                        render_format_name(priv->picture_format),
 678                        render_format_name(pMaskPicture->format));
 679    }
 680
 681    return exa->accel &&
 682           xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 683                                     pDstPicture,
 684                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 685                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 686                                     exaGetPixmapDriverPrivate(pDst));
 687 }
 688
 689 static void
 690 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 691              int dstX, int dstY, int width, int height)
 692 {
 693    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 694    modesettingPtr ms = modesettingPTR(pScrn);
 695    struct exa_context *exa = ms->exa;
 696    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 697
 698 #if DEBUG_PRINT
 699    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 700                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 701    debug_printf("\t   Num bound samplers = %d\n",
 702                 exa->num_bound_samplers);
 703 #endif
 704
 705    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 706                   dstX, dstY, width, height);
 707 }
 708
 709
 710
 711 static void
 712 ExaDoneComposite(PixmapPtr pPixmap)
 713 {
 714    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 715    modesettingPtr ms = modesettingPTR(pScrn);
 716    struct exa_context *exa = ms->exa;
 717
 718    xorg_composite_done(exa);
 719 }
 720
 721
 722 /***********************************************************************
 723  * Pixmaps
 724  */
 725
 726 static void *
 727 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 728 {
 729     struct exa_pixmap_priv *priv;
 730
 731     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 732     if (!priv)
 733         return NULL;
 734
 735     return priv;
 736 }
 737
 738 static void
 739 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 740 {
 741     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 742
 743     if (!priv)
 744         return;
 745
 746     pipe_texture_reference(&priv->tex, NULL);
 747
 748     xfree(priv);
 749 }
 750
 751 static Bool
 752 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 753 {
 754     struct exa_pixmap_priv *priv;
 755
 756     priv = exaGetPixmapDriverPrivate(pPixmap);
 757
 758     if (!priv)
 759         return FALSE;
 760
 761     if (priv->tex)
 762         return TRUE;
 763
 764     return FALSE;
 765 }
 766
 767 int
 768 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 769 {
 770     struct exa_pixmap_priv *priv;
 771     priv = exaGetPixmapDriverPrivate(pPixmap);
 772
 773     if (!priv) {
 774         FatalError("NO PIXMAP PRIVATE\n");
 775         return 0;
 776     }
 777
 778     priv->flags |= PIPE_TEXTURE_USAGE_PRIMARY;
 779
 780     return 0;
 781 }
 782
 783 int
 784 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 785 {
 786     struct exa_pixmap_priv *priv;
 787     priv = exaGetPixmapDriverPrivate(pPixmap);
 788
 789     if (!priv) {
 790         FatalError("NO PIXMAP PRIVATE\n");
 791         return 0;
 792     }
 793
 794     priv->flags |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 795
 796     return 0;
 797 }
 798
 799 unsigned
 800 xorg_exa_get_pixmap_handle(PixmapPtr pPixmap, unsigned *stride_out)
 801 {
 802     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 803     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 804     modesettingPtr ms = modesettingPTR(pScrn);
 805     struct exa_pixmap_priv *priv;
 806     unsigned handle;
 807     unsigned stride;
 808
 809     if (!ms->exa) {
 810         FatalError("NO MS->EXA\n");
 811         return 0;
 812     }
 813
 814     priv = exaGetPixmapDriverPrivate(pPixmap);
 815
 816     if (!priv) {
 817         FatalError("NO PIXMAP PRIVATE\n");
 818         return 0;
 819     }
 820
 821     ms->api->local_handle_from_texture(ms->api, ms->screen, priv->tex, &stride, &handle);
 822     if (stride_out)
 823         *stride_out = stride;
 824
 825     return handle;
 826 }
 827
 828 static Bool
 829 size_match( int width, int tex_width )
 830 {
 831 #if ROUND_UP_TEXTURES
 832    if (width > tex_width)
 833       return FALSE;
 834
 835    if (width * 2 < tex_width)
 836       return FALSE;
 837
 838    return TRUE;
 839 #else
 840    return width == tex_width;
 841 #endif
 842 }
 843
 844 static Bool
 845 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 846                       int depth, int bitsPerPixel, int devKind,
 847                       pointer pPixData)
 848 {
 849     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 850     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 851     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 852     modesettingPtr ms = modesettingPTR(pScrn);
 853     struct exa_context *exa = ms->exa;
 854
 855     if (!priv || pPixData)
 856         return FALSE;
 857
 858     if (0) {
 859        debug_printf("%s pixmap %p sz %dx%dx%d devKind %d\n",
 860                     __FUNCTION__, pPixmap, width, height, bitsPerPixel, devKind);
 861
 862        if (priv->tex)
 863           debug_printf("  ==> old texture %dx%d\n",
 864                        priv->tex->width0,
 865                        priv->tex->height0);
 866     }
 867
 868
 869     if (depth <= 0)
 870         depth = pPixmap->drawable.depth;
 871
 872     if (bitsPerPixel <= 0)
 873         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 874
 875     if (width <= 0)
 876         width = pPixmap->drawable.width;
 877
 878     if (height <= 0)
 879         height = pPixmap->drawable.height;
 880
 881     if (width <= 0 || height <= 0 || depth <= 0)
 882         return FALSE;
 883
 884     miModifyPixmapHeader(pPixmap, width, height, depth,
 885                              bitsPerPixel, devKind, NULL);
 886
 887     priv->width = width;
 888     priv->height = height;
 889
 890     /* Deal with screen resize */
 891     if ((exa->accel || priv->flags) &&
 892         (!priv->tex ||
 893          !size_match(width, priv->tex->width0) ||
 894          !size_match(height, priv->tex->height0) ||
 895          priv->tex_flags != priv->flags)) {
 896         struct pipe_texture *texture = NULL;
 897         struct pipe_texture template;
 898
 899         memset(&template, 0, sizeof(template));
 900         template.target = PIPE_TEXTURE_2D;
 901         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 902         if (ROUND_UP_TEXTURES && priv->flags == 0) {
 903            template.width0 = util_next_power_of_two(width);
 904            template.height0 = util_next_power_of_two(height);
 905         }
 906         else {
 907            template.width0 = width;
 908            template.height0 = height;
 909         }
 910
 911         template.depth0 = 1;
 912         template.last_level = 0;
 913         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 914         priv->tex_flags = priv->flags;
 915         texture = exa->scrn->texture_create(exa->scrn, &template);
 916
 917         if (priv->tex) {
 918             struct pipe_surface *dst_surf;
 919             struct pipe_surface *src_surf;
 920
 921             dst_surf = exa->scrn->get_tex_surface(
 922                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 923             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 924             if (exa->pipe->surface_copy) {
 925                exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 926                                        0, 0, min(width, texture->width0),
 927                                        min(height, texture->height0));
 928             } else {
 929                util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 930                                  0, 0, min(width, texture->width0),
 931                                  min(height, texture->height0));
 932             }
 933             exa->scrn->tex_surface_destroy(dst_surf);
 934             exa->scrn->tex_surface_destroy(src_surf);
 935         }
 936
 937         pipe_texture_reference(&priv->tex, texture);
 938         /* the texture we create has one reference */
 939         pipe_texture_reference(&texture, NULL);
 940     }
 941
 942     return TRUE;
 943 }
 944
 945 struct pipe_texture *
 946 xorg_exa_get_texture(PixmapPtr pPixmap)
 947 {
 948    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 949    struct pipe_texture *tex = NULL;
 950    pipe_texture_reference(&tex, priv->tex);
 951    return tex;
 952 }
 953
 954 Bool
 955 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 956 {
 957     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 958
 959     int mask = PIPE_TEXTURE_USAGE_PRIMARY | PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 960
 961     if (!priv)
 962         return FALSE;
 963
 964     if (pPixmap->drawable.width != tex->width0 ||
 965         pPixmap->drawable.height != tex->height0)
 966         return FALSE;
 967
 968     pipe_texture_reference(&priv->tex, tex);
 969     priv->tex_flags = tex->tex_usage & mask;
 970
 971     return TRUE;
 972 }
 973
 974 struct pipe_texture *
 975 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 976                              int width, int height,
 977                              int depth, int bitsPerPixel)
 978 {
 979     modesettingPtr ms = modesettingPTR(pScrn);
 980     struct exa_context *exa = ms->exa;
 981     struct pipe_texture template;
 982     int dummy;
 983
 984     memset(&template, 0, sizeof(template));
 985     template.target = PIPE_TEXTURE_2D;
 986     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 987     template.width0 = width;
 988     template.height0 = height;
 989     template.depth0 = 1;
 990     template.last_level = 0;
 991     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 992     template.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 993     template.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 994
 995     return exa->scrn->texture_create(exa->scrn, &template);
 996 }
 997
 998 void
 999 xorg_exa_close(ScrnInfoPtr pScrn)
1000 {
1001    modesettingPtr ms = modesettingPTR(pScrn);
1002    struct exa_context *exa = ms->exa;
1003
1004    renderer_destroy(exa->renderer);
1005
1006    if (exa->pipe)
1007       exa->pipe->destroy(exa->pipe);
1008
1009    exaDriverFini(pScrn->pScreen);
1010    xfree(exa);
1011    ms->exa = NULL;
1012 }
1013
1014 void *
1015 xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
1016 {
1017    modesettingPtr ms = modesettingPTR(pScrn);
1018    struct exa_context *exa;
1019    ExaDriverPtr pExa;
1020
1021    exa = xcalloc(1, sizeof(struct exa_context));
1022    if (!exa)
1023       return NULL;
1024
1025    pExa = exaDriverAlloc();
1026    if (!pExa) {
1027       goto out_err;
1028    }
1029
1030    memset(pExa, 0, sizeof(*pExa));
1031
1032    pExa->exa_major         = 2;
1033    pExa->exa_minor         = 2;
1034    pExa->memoryBase        = 0;
1035    pExa->memorySize        = 0;
1036    pExa->offScreenBase     = 0;
1037    pExa->pixmapOffsetAlign = 0;
1038    pExa->pixmapPitchAlign  = 1;
1039    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
1040 #ifdef EXA_SUPPORTS_PREPARE_AUX
1041    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
1042 #endif
1043 #ifdef EXA_MIXED_PIXMAPS
1044    pExa->flags            |= EXA_MIXED_PIXMAPS;
1045 #endif
1046    pExa->maxX              = 8191; /* FIXME */
1047    pExa->maxY              = 8191; /* FIXME */
1048
1049    pExa->WaitMarker         = ExaWaitMarker;
1050    pExa->MarkSync           = ExaMarkSync;
1051    pExa->PrepareSolid       = ExaPrepareSolid;
1052    pExa->Solid              = ExaSolid;
1053    pExa->DoneSolid          = ExaDoneSolid;
1054    pExa->PrepareCopy        = ExaPrepareCopy;
1055    pExa->Copy               = ExaCopy;
1056    pExa->DoneCopy           = ExaDoneCopy;
1057    pExa->CheckComposite     = ExaCheckComposite;
1058    pExa->PrepareComposite   = ExaPrepareComposite;
1059    pExa->Composite          = ExaComposite;
1060    pExa->DoneComposite      = ExaDoneComposite;
1061    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1062    pExa->DownloadFromScreen = ExaDownloadFromScreen;
1063    pExa->UploadToScreen     = ExaUploadToScreen;
1064    pExa->PrepareAccess      = ExaPrepareAccess;
1065    pExa->FinishAccess       = ExaFinishAccess;
1066    pExa->CreatePixmap       = ExaCreatePixmap;
1067    pExa->DestroyPixmap      = ExaDestroyPixmap;
1068    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1069
1070    if (!exaDriverInit(pScrn->pScreen, pExa)) {
1071       goto out_err;
1072    }
1073
1074    exa->scrn = ms->screen;
1075    exa->pipe = ms->api->create_context(ms->api, exa->scrn);
1076    /* Share context with DRI */
1077    ms->ctx = exa->pipe;
1078
1079    exa->renderer = renderer_create(exa->pipe);
1080    exa->accel = accel;
1081
1082    return (void *)exa;
1083
1084 out_err:
1085    xorg_exa_close(pScrn);
1086
1087    return NULL;
1088 }
1089
1090 struct pipe_surface *
1091 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1092 {
1093    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1094                                 PIPE_BUFFER_USAGE_GPU_READ |
1095                                 PIPE_BUFFER_USAGE_GPU_WRITE);
1096
1097 }
1098
1099 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1100                     struct pipe_fence_handle **fence)
1101 {
1102    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1103 }
1104
1105 void xorg_exa_finish(struct exa_context *exa)
1106 {
1107    struct pipe_fence_handle *fence = NULL;
1108
1109    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1110
1111    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1112    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1113 }
1114