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 #define ACCEL_ENABLED TRUE
  50
  51 /*
  52  * Helper functions
  53  */
  54 struct render_format_str {
  55    int format;
  56    const char *name;
  57 };
  58 static const struct render_format_str formats_info[] =
  59 {
  60    {PICT_a8r8g8b8, "PICT_a8r8g8b8"},
  61    {PICT_x8r8g8b8, "PICT_x8r8g8b8"},
  62    {PICT_a8b8g8r8, "PICT_a8b8g8r8"},
  63    {PICT_x8b8g8r8, "PICT_x8b8g8r8"},
  64 #ifdef PICT_TYPE_BGRA
  65    {PICT_b8g8r8a8, "PICT_b8g8r8a8"},
  66    {PICT_b8g8r8x8, "PICT_b8g8r8x8"},
  67    {PICT_a2r10g10b10, "PICT_a2r10g10b10"},
  68    {PICT_x2r10g10b10, "PICT_x2r10g10b10"},
  69    {PICT_a2b10g10r10, "PICT_a2b10g10r10"},
  70    {PICT_x2b10g10r10, "PICT_x2b10g10r10"},
  71 #endif
  72    {PICT_r8g8b8, "PICT_r8g8b8"},
  73    {PICT_b8g8r8, "PICT_b8g8r8"},
  74    {PICT_r5g6b5, "PICT_r5g6b5"},
  75    {PICT_b5g6r5, "PICT_b5g6r5"},
  76    {PICT_a1r5g5b5, "PICT_a1r5g5b5"},
  77    {PICT_x1r5g5b5, "PICT_x1r5g5b5"},
  78    {PICT_a1b5g5r5, "PICT_a1b5g5r5"},
  79    {PICT_x1b5g5r5, "PICT_x1b5g5r5"},
  80    {PICT_a4r4g4b4, "PICT_a4r4g4b4"},
  81    {PICT_x4r4g4b4, "PICT_x4r4g4b4"},
  82    {PICT_a4b4g4r4, "PICT_a4b4g4r4"},
  83    {PICT_x4b4g4r4, "PICT_x4b4g4r4"},
  84    {PICT_a8, "PICT_a8"},
  85    {PICT_r3g3b2, "PICT_r3g3b2"},
  86    {PICT_b2g3r3, "PICT_b2g3r3"},
  87    {PICT_a2r2g2b2, "PICT_a2r2g2b2"},
  88    {PICT_a2b2g2r2, "PICT_a2b2g2r2"},
  89    {PICT_c8, "PICT_c8"},
  90    {PICT_g8, "PICT_g8"},
  91    {PICT_x4a4, "PICT_x4a4"},
  92    {PICT_x4c4, "PICT_x4c4"},
  93    {PICT_x4g4, "PICT_x4g4"},
  94    {PICT_a4, "PICT_a4"},
  95    {PICT_r1g2b1, "PICT_r1g2b1"},
  96    {PICT_b1g2r1, "PICT_b1g2r1"},
  97    {PICT_a1r1g1b1, "PICT_a1r1g1b1"},
  98    {PICT_a1b1g1r1, "PICT_a1b1g1r1"},
  99    {PICT_c4, "PICT_c4"},
 100    {PICT_g4, "PICT_g4"},
 101    {PICT_a1, "PICT_a1"},
 102    {PICT_g1, "PICT_g1"}
 103 };
 104 static const char *render_format_name(int format)
 105 {
 106    int i = 0;
 107    for (i = 0; i < sizeof(formats_info)/sizeof(formats_info[0]); ++i) {
 108       if (formats_info[i].format == format)
 109          return formats_info[i].name;
 110    }
 111    return NULL;
 112 }
 113
 114 static void
 115 exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp, int *picture_format)
 116 {
 117     switch (depth) {
 118     case 32:
 119         *format = PIPE_FORMAT_A8R8G8B8_UNORM;
 120         *picture_format = PICT_a8r8g8b8;
 121         assert(*bbp == 32);
 122         break;
 123     case 24:
 124         *format = PIPE_FORMAT_X8R8G8B8_UNORM;
 125         *picture_format = PICT_x8r8g8b8;
 126         assert(*bbp == 32);
 127         break;
 128     case 16:
 129         *format = PIPE_FORMAT_R5G6B5_UNORM;
 130         *picture_format = PICT_r5g6b5;
 131         assert(*bbp == 16);
 132         break;
 133     case 15:
 134         *format = PIPE_FORMAT_A1R5G5B5_UNORM;
 135         *picture_format = PICT_x1r5g5b5;
 136         assert(*bbp == 16);
 137         break;
 138     case 8:
 139         *format = PIPE_FORMAT_L8_UNORM;
 140         *picture_format = PICT_a8;
 141         assert(*bbp == 8);
 142         break;
 143     case 4:
 144     case 1:
 145         *format = PIPE_FORMAT_A8R8G8B8_UNORM; /* bad bad bad */
 146         break;
 147     default:
 148         assert(0);
 149         break;
 150     }
 151 }
 152
 153 static void
 154 xorg_exa_common_done(struct exa_context *exa)
 155 {
 156    renderer_draw_flush(exa->renderer);
 157
 158    exa->copy.src = NULL;
 159    exa->copy.dst = NULL;
 160    exa->transform.has_src = FALSE;
 161    exa->transform.has_mask = FALSE;
 162    exa->has_solid_color = FALSE;
 163    exa->num_bound_samplers = 0;
 164 }
 165
 166 /*
 167  * Static exported EXA functions
 168  */
 169
 170 static void
 171 ExaWaitMarker(ScreenPtr pScreen, int marker)
 172 {
 173    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 174    modesettingPtr ms = modesettingPTR(pScrn);
 175    struct exa_context *exa = ms->exa;
 176
 177 #if 0
 178    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, NULL);
 179 #else
 180    xorg_exa_finish(exa);
 181 #endif
 182 }
 183
 184 static int
 185 ExaMarkSync(ScreenPtr pScreen)
 186 {
 187    return 1;
 188 }
 189
 190 static Bool
 191 ExaDownloadFromScreen(PixmapPtr pPix, int x,  int y, int w,  int h, char *dst,
 192                       int dst_pitch)
 193 {
 194     ScreenPtr pScreen = pPix->drawable.pScreen;
 195     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 196     modesettingPtr ms = modesettingPTR(pScrn);
 197     struct exa_context *exa = ms->exa;
 198     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 199     struct pipe_transfer *transfer;
 200
 201     if (!priv || !priv->tex)
 202         return FALSE;
 203
 204     if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 205         PIPE_REFERENCED_FOR_WRITE)
 206         exa->pipe->flush(exa->pipe, 0, NULL);
 207
 208     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 209                                            PIPE_TRANSFER_READ, x, y, w, h);
 210     if (!transfer)
 211         return FALSE;
 212
 213 #if DEBUG_PRINT
 214     debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
 215                  x, y, w, h, dst_pitch);
 216 #endif
 217
 218     util_copy_rect((unsigned char*)dst, &priv->tex->block, dst_pitch, 0, 0,
 219                    w, h, exa->scrn->transfer_map(exa->scrn, transfer),
 220                    transfer->stride, 0, 0);
 221
 222     exa->scrn->transfer_unmap(exa->scrn, transfer);
 223     exa->scrn->tex_transfer_destroy(transfer);
 224
 225     return TRUE;
 226 }
 227
 228 static Bool
 229 ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
 230                   int src_pitch)
 231 {
 232     ScreenPtr pScreen = pPix->drawable.pScreen;
 233     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 234     modesettingPtr ms = modesettingPTR(pScrn);
 235     struct exa_context *exa = ms->exa;
 236     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
 237     struct pipe_transfer *transfer;
 238
 239     if (!priv || !priv->tex)
 240         return FALSE;
 241
 242     transfer = exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 243                                            PIPE_TRANSFER_WRITE, x, y, w, h);
 244     if (!transfer)
 245         return FALSE;
 246
 247 #if DEBUG_PRINT
 248     debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
 249                  x, y, w, h, src_pitch);
 250 #endif
 251
 252     util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
 253                    &priv->tex->block, transfer->stride, 0, 0, w, h,
 254                    (unsigned char*)src, src_pitch, 0, 0);
 255
 256     exa->scrn->transfer_unmap(exa->scrn, transfer);
 257     exa->scrn->tex_transfer_destroy(transfer);
 258
 259     return TRUE;
 260 }
 261
 262 static Bool
 263 ExaPrepareAccess(PixmapPtr pPix, int index)
 264 {
 265     ScreenPtr pScreen = pPix->drawable.pScreen;
 266     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 267     modesettingPtr ms = modesettingPTR(pScrn);
 268     struct exa_context *exa = ms->exa;
 269     struct exa_pixmap_priv *priv;
 270
 271     priv = exaGetPixmapDriverPrivate(pPix);
 272
 273     if (!priv)
 274         return FALSE;
 275
 276     if (!priv->tex)
 277         return FALSE;
 278
 279     if (priv->map_count == 0)
 280     {
 281         if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
 282             PIPE_REFERENCED_FOR_WRITE)
 283             exa->pipe->flush(exa->pipe, 0, NULL);
 284
 285         priv->map_transfer =
 286             exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 287 #ifdef EXA_MIXED_PIXMAPS
 288                                         PIPE_TRANSFER_MAP_DIRECTLY |
 289 #endif
 290                                         PIPE_TRANSFER_READ_WRITE,
 291                                         0, 0, priv->tex->width0, priv->tex->height0);
 292         if (!priv->map_transfer)
 293 #ifdef EXA_MIXED_PIXMAPS
 294             return FALSE;
 295 #else
 296             FatalError("failed to create transfer\n");
 297 #endif
 298
 299         pPix->devPrivate.ptr =
 300             exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
 301         pPix->devKind = priv->map_transfer->stride;
 302     }
 303
 304     priv->map_count++;
 305
 306     return TRUE;
 307 }
 308
 309 static void
 310 ExaFinishAccess(PixmapPtr pPix, int index)
 311 {
 312     ScreenPtr pScreen = pPix->drawable.pScreen;
 313     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 314     modesettingPtr ms = modesettingPTR(pScrn);
 315     struct exa_context *exa = ms->exa;
 316     struct exa_pixmap_priv *priv;
 317     priv = exaGetPixmapDriverPrivate(pPix);
 318
 319     if (!priv)
 320         return;
 321
 322     if (!priv->map_transfer)
 323         return;
 324
 325     if (--priv->map_count == 0) {
 326         assert(priv->map_transfer);
 327         exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
 328         exa->scrn->tex_transfer_destroy(priv->map_transfer);
 329         priv->map_transfer = NULL;
 330         pPix->devPrivate.ptr = NULL;
 331     }
 332 }
 333
 334 static void
 335 ExaDone(PixmapPtr pPixmap)
 336 {
 337     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 338     modesettingPtr ms = modesettingPTR(pScrn);
 339     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 340     struct exa_context *exa = ms->exa;
 341
 342     if (!priv)
 343         return;
 344
 345     xorg_exa_common_done(exa);
 346 }
 347
 348 static void
 349 ExaDoneComposite(PixmapPtr pPixmap)
 350 {
 351    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 352    modesettingPtr ms = modesettingPTR(pScrn);
 353    struct exa_context *exa = ms->exa;
 354
 355    xorg_exa_common_done(exa);
 356 }
 357
 358 static Bool
 359 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 360 {
 361     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 362     modesettingPtr ms = modesettingPTR(pScrn);
 363     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 364     struct exa_context *exa = ms->exa;
 365
 366 #if DEBUG_PRINT
 367     debug_printf("ExaPrepareSolid(0x%x)\n", fg);
 368 #endif
 369     if (!exa->pipe)
 370         XORG_FALLBACK("accle not enabled");
 371
 372     if (!priv || !priv->tex)
 373         XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
 374
 375     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 376         XORG_FALLBACK("planeMask is not solid");
 377
 378     if (alu != GXcopy)
 379         XORG_FALLBACK("not GXcopy");
 380
 381     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 382                                         priv->tex->target,
 383                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
 384         XORG_FALLBACK("format %s", pf_name(priv->tex->format));
 385     }
 386
 387     return ACCEL_ENABLED && xorg_solid_bind_state(exa, priv, fg);
 388 }
 389
 390 static void
 391 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 392 {
 393     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 394     modesettingPtr ms = modesettingPTR(pScrn);
 395     struct exa_context *exa = ms->exa;
 396     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 397
 398 #if DEBUG_PRINT
 399     debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
 400 #endif
 401
 402     xorg_solid(exa, priv, x0, y0, x1, y1) ;
 403 }
 404
 405 static Bool
 406 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 407                int ydir, int alu, Pixel planeMask)
 408 {
 409     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 410     modesettingPtr ms = modesettingPTR(pScrn);
 411     struct exa_context *exa = ms->exa;
 412     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 413     struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 414
 415 #if DEBUG_PRINT
 416     debug_printf("ExaPrepareCopy\n");
 417 #endif
 418     if (!exa->pipe)
 419         XORG_FALLBACK("accle not enabled");
 420
 421     if (!priv || !priv->tex)
 422         XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 423
 424     if (!src_priv || !src_priv->tex)
 425         XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
 426
 427     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 428         XORG_FALLBACK("planeMask is not solid");
 429
 430     if (alu != GXcopy)
 431         XORG_FALLBACK("alu not GXcopy");
 432
 433     if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 434                                         priv->tex->target,
 435                                         PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 436         XORG_FALLBACK("pDst format %s", pf_name(priv->tex->format));
 437
 438     if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
 439                                         src_priv->tex->target,
 440                                         PIPE_TEXTURE_USAGE_SAMPLER, 0))
 441         XORG_FALLBACK("pSrc format %s", pf_name(src_priv->tex->format));
 442
 443     exa->copy.src = src_priv;
 444     exa->copy.dst = priv;
 445
 446     return ACCEL_ENABLED;
 447 }
 448
 449 static void
 450 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 451         int width, int height)
 452 {
 453    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 454    modesettingPtr ms = modesettingPTR(pScrn);
 455    struct exa_context *exa = ms->exa;
 456    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 457
 458 #if DEBUG_PRINT
 459    debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
 460                 srcX, srcY, dstX, dstY, width, height);
 461 #endif
 462
 463    debug_assert(priv == exa->copy.dst);
 464
 465    renderer_copy_pixmap(exa->renderer, exa->copy.dst, dstX, dstY,
 466                         exa->copy.src, srcX, srcY,
 467                         width, height);
 468 }
 469
 470 static Bool
 471 picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
 472 {
 473    if (pSrc->picture_format == pSrcPicture->format)
 474       return TRUE;
 475
 476    if (pSrc->picture_format != PICT_a8r8g8b8)
 477       return FALSE;
 478
 479    /* pSrc->picture_format == PICT_a8r8g8b8 */
 480    switch (pSrcPicture->format) {
 481    case PICT_a8r8g8b8:
 482    case PICT_x8r8g8b8:
 483    case PICT_a8b8g8r8:
 484    case PICT_x8b8g8r8:
 485    /* just treat these two as x8... */
 486    case PICT_r8g8b8:
 487    case PICT_b8g8r8:
 488       return TRUE;
 489 #ifdef PICT_TYPE_BGRA
 490    case PICT_b8g8r8a8:
 491    case PICT_b8g8r8x8:
 492       return FALSE; /* does not support swizzleing the alpha channel yet */
 493    case PICT_a2r10g10b10:
 494    case PICT_x2r10g10b10:
 495    case PICT_a2b10g10r10:
 496    case PICT_x2b10g10r10:
 497       return FALSE;
 498 #endif
 499    default:
 500       return FALSE;
 501    }
 502    return FALSE;
 503 }
 504
 505 static Bool
 506 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 507                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 508                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 509 {
 510    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 511    modesettingPtr ms = modesettingPTR(pScrn);
 512    struct exa_context *exa = ms->exa;
 513    struct exa_pixmap_priv *priv;
 514
 515 #if DEBUG_PRINT
 516    debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
 517                 op, pSrcPicture, pMaskPicture, pDstPicture);
 518    debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
 519                 pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
 520                 pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
 521                 pDstPicture ? render_format_name(pDstPicture->format) : "none");
 522 #endif
 523    if (!exa->pipe)
 524       XORG_FALLBACK("accle not enabled");
 525
 526    priv = exaGetPixmapDriverPrivate(pDst);
 527    if (!priv || !priv->tex)
 528       XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
 529
 530    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 531                                        priv->tex->target,
 532                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
 533       XORG_FALLBACK("pDst format: %s", pf_name(priv->tex->format));
 534
 535    if (priv->picture_format != pDstPicture->format)
 536       XORG_FALLBACK("pDst pic_format: %s != %s",
 537                     render_format_name(priv->picture_format),
 538                     render_format_name(pDstPicture->format));
 539
 540    if (pSrc) {
 541       priv = exaGetPixmapDriverPrivate(pSrc);
 542       if (!priv || !priv->tex)
 543          XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
 544
 545       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 546                                           priv->tex->target,
 547                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 548          XORG_FALLBACK("pSrc format: %s", pf_name(priv->tex->format));
 549
 550       if (!picture_check_formats(priv, pSrcPicture))
 551          XORG_FALLBACK("pSrc pic_format: %s != %s",
 552                        render_format_name(priv->picture_format),
 553                        render_format_name(pSrcPicture->format));
 554
 555       if (priv->picture_format == PICT_a8)
 556          XORG_FALLBACK("pSrc pic_format == PICT_a8");
 557    }
 558
 559    if (pMask) {
 560       priv = exaGetPixmapDriverPrivate(pMask);
 561       if (!priv || !priv->tex)
 562          XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
 563
 564       if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
 565                                           priv->tex->target,
 566                                           PIPE_TEXTURE_USAGE_SAMPLER, 0))
 567          XORG_FALLBACK("pMask format: %s", pf_name(priv->tex->format));
 568
 569       if (!picture_check_formats(priv, pMaskPicture))
 570          XORG_FALLBACK("pMask pic_format: %s != %s",
 571                        render_format_name(priv->picture_format),
 572                        render_format_name(pMaskPicture->format));
 573    }
 574
 575    return ACCEL_ENABLED &&
 576           xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
 577                                     pDstPicture,
 578                                     pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
 579                                     pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
 580                                     exaGetPixmapDriverPrivate(pDst));
 581 }
 582
 583 static void
 584 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 585              int dstX, int dstY, int width, int height)
 586 {
 587    ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
 588    modesettingPtr ms = modesettingPTR(pScrn);
 589    struct exa_context *exa = ms->exa;
 590    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
 591
 592 #if DEBUG_PRINT
 593    debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
 594                 srcX, srcY, maskX, maskY, dstX, dstY, width, height);
 595    debug_printf("\t   Num bound samplers = %d\n",
 596                 exa->num_bound_samplers);
 597 #endif
 598
 599    xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
 600                   dstX, dstY, width, height);
 601 }
 602
 603 static Bool
 604 ExaCheckComposite(int op,
 605                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 606                   PicturePtr pDstPicture)
 607 {
 608    boolean accelerated = xorg_composite_accelerated(op,
 609                                                     pSrcPicture,
 610                                                     pMaskPicture,
 611                                                     pDstPicture);
 612 #if DEBUG_PRINT
 613    debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
 614                 op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
 615 #endif
 616    return ACCEL_ENABLED && accelerated;
 617 }
 618
 619 static void *
 620 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 621 {
 622     struct exa_pixmap_priv *priv;
 623
 624     priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
 625     if (!priv)
 626         return NULL;
 627
 628     return priv;
 629 }
 630
 631 static void
 632 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 633 {
 634     struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
 635
 636     if (!priv)
 637         return;
 638
 639     pipe_texture_reference(&priv->tex, NULL);
 640
 641     xfree(priv);
 642 }
 643
 644 static Bool
 645 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 646 {
 647     struct exa_pixmap_priv *priv;
 648
 649     priv = exaGetPixmapDriverPrivate(pPixmap);
 650
 651     if (!priv)
 652         return FALSE;
 653
 654     if (priv->tex)
 655         return TRUE;
 656
 657     return FALSE;
 658 }
 659
 660 int
 661 xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
 662 {
 663     struct exa_pixmap_priv *priv;
 664     priv = exaGetPixmapDriverPrivate(pPixmap);
 665
 666     if (!priv) {
 667         FatalError("NO PIXMAP PRIVATE\n");
 668         return 0;
 669     }
 670
 671     priv->flags |= PIPE_TEXTURE_USAGE_PRIMARY;
 672
 673     return 0;
 674 }
 675
 676 int
 677 xorg_exa_set_shared_usage(PixmapPtr pPixmap)
 678 {
 679     struct exa_pixmap_priv *priv;
 680     priv = exaGetPixmapDriverPrivate(pPixmap);
 681
 682     if (!priv) {
 683         FatalError("NO PIXMAP PRIVATE\n");
 684         return 0;
 685     }
 686
 687     priv->flags |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 688
 689     return 0;
 690 }
 691
 692 unsigned
 693 xorg_exa_get_pixmap_handle(PixmapPtr pPixmap, unsigned *stride_out)
 694 {
 695     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 696     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 697     modesettingPtr ms = modesettingPTR(pScrn);
 698     struct exa_pixmap_priv *priv;
 699     unsigned handle;
 700     unsigned stride;
 701
 702     if (!ms->exa) {
 703         FatalError("NO MS->EXA\n");
 704         return 0;
 705     }
 706
 707     priv = exaGetPixmapDriverPrivate(pPixmap);
 708
 709     if (!priv) {
 710         FatalError("NO PIXMAP PRIVATE\n");
 711         return 0;
 712     }
 713
 714     ms->api->local_handle_from_texture(ms->api, ms->screen, priv->tex, &stride, &handle);
 715     if (stride_out)
 716         *stride_out = stride;
 717
 718     return handle;
 719 }
 720
 721 static Bool
 722 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 723                       int depth, int bitsPerPixel, int devKind,
 724                       pointer pPixData)
 725 {
 726     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 727     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 728     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 729     modesettingPtr ms = modesettingPTR(pScrn);
 730     struct exa_context *exa = ms->exa;
 731
 732     if (!priv || pPixData)
 733         return FALSE;
 734
 735     if (depth <= 0)
 736         depth = pPixmap->drawable.depth;
 737
 738     if (bitsPerPixel <= 0)
 739         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 740
 741     if (width <= 0)
 742         width = pPixmap->drawable.width;
 743
 744     if (height <= 0)
 745         height = pPixmap->drawable.height;
 746
 747     if (width <= 0 || height <= 0 || depth <= 0)
 748         return FALSE;
 749
 750     miModifyPixmapHeader(pPixmap, width, height, depth,
 751                              bitsPerPixel, devKind, NULL);
 752
 753     /* Deal with screen resize */
 754     if (!priv->tex ||
 755         (priv->tex->width0 != width ||
 756          priv->tex->height0 != height ||
 757          priv->tex_flags != priv->flags)) {
 758         struct pipe_texture *texture = NULL;
 759         struct pipe_texture template;
 760
 761         memset(&template, 0, sizeof(template));
 762         template.target = PIPE_TEXTURE_2D;
 763         exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
 764         pf_get_block(template.format, &template.block);
 765         template.width0 = width;
 766         template.height0 = height;
 767         template.depth0 = 1;
 768         template.last_level = 0;
 769         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
 770         priv->tex_flags = priv->flags;
 771         texture = exa->scrn->texture_create(exa->scrn, &template);
 772
 773         if (priv->tex) {
 774             struct pipe_surface *dst_surf;
 775             struct pipe_surface *src_surf;
 776
 777             dst_surf = exa->scrn->get_tex_surface(
 778                 exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
 779             src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
 780         if (exa->pipe->surface_copy) {
 781             exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
 782                         0, 0, min(width, texture->width0),
 783                         min(height, texture->height0));
 784         } else {
 785             util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
 786                         0, 0, min(width, texture->width0),
 787                         min(height, texture->height0));
 788         }
 789             exa->scrn->tex_surface_destroy(dst_surf);
 790             exa->scrn->tex_surface_destroy(src_surf);
 791         }
 792
 793         pipe_texture_reference(&priv->tex, texture);
 794         /* the texture we create has one reference */
 795         pipe_texture_reference(&texture, NULL);
 796     }
 797
 798     return TRUE;
 799 }
 800
 801 struct pipe_texture *
 802 xorg_exa_get_texture(PixmapPtr pPixmap)
 803 {
 804    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 805    struct pipe_texture *tex = NULL;
 806    pipe_texture_reference(&tex, priv->tex);
 807    return tex;
 808 }
 809
 810 Bool
 811 xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
 812 {
 813     struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
 814
 815     int mask = PIPE_TEXTURE_USAGE_PRIMARY | PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 816
 817     if (!priv)
 818         return FALSE;
 819
 820     if (pPixmap->drawable.width != tex->width0 ||
 821         pPixmap->drawable.height != tex->height0)
 822         return FALSE;
 823
 824     pipe_texture_reference(&priv->tex, tex);
 825     priv->tex_flags = tex->tex_usage & mask;
 826
 827     return TRUE;
 828 }
 829
 830 struct pipe_texture *
 831 xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
 832                              int width, int height,
 833                              int depth, int bitsPerPixel)
 834 {
 835     modesettingPtr ms = modesettingPTR(pScrn);
 836     struct exa_context *exa = ms->exa;
 837     struct pipe_texture template;
 838     int dummy;
 839
 840     memset(&template, 0, sizeof(template));
 841     template.target = PIPE_TEXTURE_2D;
 842     exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
 843     pf_get_block(template.format, &template.block);
 844     template.width0 = width;
 845     template.height0 = height;
 846     template.depth0 = 1;
 847     template.last_level = 0;
 848     template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
 849     template.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
 850     template.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 851
 852     return exa->scrn->texture_create(exa->scrn, &template);
 853 }
 854
 855 void
 856 xorg_exa_close(ScrnInfoPtr pScrn)
 857 {
 858    modesettingPtr ms = modesettingPTR(pScrn);
 859    struct exa_context *exa = ms->exa;
 860
 861    renderer_destroy(exa->renderer);
 862
 863    if (exa->pipe)
 864       exa->pipe->destroy(exa->pipe);
 865
 866    exaDriverFini(pScrn->pScreen);
 867    xfree(exa);
 868    ms->exa = NULL;
 869 }
 870
 871 void *
 872 xorg_exa_init(ScrnInfoPtr pScrn)
 873 {
 874    modesettingPtr ms = modesettingPTR(pScrn);
 875    struct exa_context *exa;
 876    ExaDriverPtr pExa;
 877
 878    exa = xcalloc(1, sizeof(struct exa_context));
 879    if (!exa)
 880       return NULL;
 881
 882    pExa = exaDriverAlloc();
 883    if (!pExa) {
 884       goto out_err;
 885    }
 886
 887    memset(pExa, 0, sizeof(*pExa));
 888
 889    pExa->exa_major         = 2;
 890    pExa->exa_minor         = 2;
 891    pExa->memoryBase        = 0;
 892    pExa->memorySize        = 0;
 893    pExa->offScreenBase     = 0;
 894    pExa->pixmapOffsetAlign = 0;
 895    pExa->pixmapPitchAlign  = 1;
 896    pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
 897 #ifdef EXA_SUPPORTS_PREPARE_AUX
 898    pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
 899 #endif
 900 #ifdef EXA_MIXED_PIXMAPS
 901    pExa->flags            |= EXA_MIXED_PIXMAPS;
 902 #endif
 903    pExa->maxX              = 8191; /* FIXME */
 904    pExa->maxY              = 8191; /* FIXME */
 905
 906    pExa->WaitMarker         = ExaWaitMarker;
 907    pExa->MarkSync           = ExaMarkSync;
 908    pExa->PrepareSolid       = ExaPrepareSolid;
 909    pExa->Solid              = ExaSolid;
 910    pExa->DoneSolid          = ExaDone;
 911    pExa->PrepareCopy        = ExaPrepareCopy;
 912    pExa->Copy               = ExaCopy;
 913    pExa->DoneCopy           = ExaDone;
 914    pExa->CheckComposite     = ExaCheckComposite;
 915    pExa->PrepareComposite   = ExaPrepareComposite;
 916    pExa->Composite          = ExaComposite;
 917    pExa->DoneComposite      = ExaDoneComposite;
 918    pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
 919    pExa->DownloadFromScreen = ExaDownloadFromScreen;
 920    pExa->UploadToScreen     = ExaUploadToScreen;
 921    pExa->PrepareAccess      = ExaPrepareAccess;
 922    pExa->FinishAccess       = ExaFinishAccess;
 923    pExa->CreatePixmap       = ExaCreatePixmap;
 924    pExa->DestroyPixmap      = ExaDestroyPixmap;
 925    pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
 926
 927    if (!exaDriverInit(pScrn->pScreen, pExa)) {
 928       goto out_err;
 929    }
 930
 931    exa->scrn = ms->screen;
 932    exa->pipe = ms->api->create_context(ms->api, exa->scrn);
 933    /* Share context with DRI */
 934    ms->ctx = exa->pipe;
 935
 936    exa->renderer = renderer_create(exa->pipe);
 937
 938    return (void *)exa;
 939
 940 out_err:
 941    xorg_exa_close(pScrn);
 942
 943    return NULL;
 944 }
 945
 946 struct pipe_surface *
 947 xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
 948 {
 949    return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
 950                                 PIPE_BUFFER_USAGE_GPU_READ |
 951                                 PIPE_BUFFER_USAGE_GPU_WRITE);
 952
 953 }
 954
 955 void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
 956                     struct pipe_fence_handle **fence)
 957 {
 958    exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
 959 }
 960
 961 void xorg_exa_finish(struct exa_context *exa)
 962 {
 963    struct pipe_fence_handle *fence = NULL;
 964
 965    xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
 966
 967    exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
 968    exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
 969 }
 970