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-server.h"
  32 #include "xf86.h"
  33 #include "xorg_tracker.h"
  34
  35 #include "pipe/p_format.h"
  36 #include "pipe/p_context.h"
  37 #include "pipe/p_state.h"
  38 #include "pipe/p_inlines.h"
  39
  40 struct exa_entity
  41 {
  42     ExaDriverPtr pExa;
  43     struct pipe_context *ctx;
  44     struct pipe_screen *scrn;
  45 };
  46
  47 struct PixmapPriv
  48 {
  49     int flags;
  50     struct pipe_texture *tex;
  51     unsigned int color;
  52     struct pipe_surface *src_surf; /* for copies */
  53
  54     struct pipe_transfer *map_transfer;
  55     unsigned map_count;
  56 };
  57
  58 /*
  59  * Helper functions
  60  */
  61
  62 static void
  63 exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp)
  64 {
  65     switch (depth) {
  66     case 32:
  67         *format = PIPE_FORMAT_A8R8G8B8_UNORM;
  68         assert(*bbp == 32);
  69         break;
  70     case 24:
  71         *format = PIPE_FORMAT_X8R8G8B8_UNORM;
  72         assert(*bbp == 32);
  73         break;
  74     case 16:
  75         *format = PIPE_FORMAT_R5G6B5_UNORM;
  76         assert(*bbp == 16);
  77         break;
  78     case 15:
  79         *format = PIPE_FORMAT_A1R5G5B5_UNORM;
  80         assert(*bbp == 16);
  81         break;
  82     case 8:
  83     case 4:
  84     case 1:
  85         *format = PIPE_FORMAT_A8R8G8B8_UNORM; /* bad bad bad */
  86         break;
  87     default:
  88         assert(0);
  89         break;
  90     }
  91 }
  92
  93 /*
  94  * Static exported EXA functions
  95  */
  96
  97 static void
  98 ExaWaitMarker(ScreenPtr pScreen, int marker)
  99 {
 100 }
 101
 102 static int
 103 ExaMarkSync(ScreenPtr pScreen)
 104 {
 105     return 1;
 106 }
 107
 108 static Bool
 109 ExaPrepareAccess(PixmapPtr pPix, int index)
 110 {
 111     ScreenPtr pScreen = pPix->drawable.pScreen;
 112     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 113     modesettingPtr ms = modesettingPTR(pScrn);
 114     struct exa_entity *exa = ms->exa;
 115     struct PixmapPriv *priv;
 116
 117     priv = exaGetPixmapDriverPrivate(pPix);
 118
 119     if (!priv)
 120         return FALSE;
 121
 122     if (!priv->tex)
 123         return FALSE;
 124
 125     if (priv->map_count++ == 0)
 126     {
 127         priv->map_transfer =
 128             exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
 129                                         PIPE_TRANSFER_READ_WRITE,
 130                                         0, 0, priv->tex->width[0], priv->tex->height[0]);
 131
 132         pPix->devPrivate.ptr =
 133             exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
 134         pPix->devKind = priv->map_transfer->stride;
 135     }
 136
 137     return TRUE;
 138 }
 139
 140 static void
 141 ExaFinishAccess(PixmapPtr pPix, int index)
 142 {
 143     ScreenPtr pScreen = pPix->drawable.pScreen;
 144     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 145     modesettingPtr ms = modesettingPTR(pScrn);
 146     struct exa_entity *exa = ms->exa;
 147     struct PixmapPriv *priv;
 148     priv = exaGetPixmapDriverPrivate(pPix);
 149
 150     if (!priv)
 151         return;
 152
 153     if (!priv->map_transfer)
 154         return;
 155
 156     if (--priv->map_count == 0) {
 157         assert(priv->map_transfer);
 158         exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
 159         exa->scrn->tex_transfer_destroy(priv->map_transfer);
 160         priv->map_transfer = NULL;
 161     }
 162 }
 163
 164 static void
 165 ExaDone(PixmapPtr pPixmap)
 166 {
 167     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 168     modesettingPtr ms = modesettingPTR(pScrn);
 169     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pPixmap);
 170     struct exa_entity *exa = ms->exa;
 171
 172     if (!priv)
 173         return;
 174
 175     if (priv->src_surf)
 176         exa->scrn->tex_surface_destroy(priv->src_surf);
 177     priv->src_surf = NULL;
 178 }
 179
 180 static void
 181 ExaDoneComposite(PixmapPtr pPixmap)
 182 {
 183
 184 }
 185
 186 static Bool
 187 ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
 188 {
 189     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 190     modesettingPtr ms = modesettingPTR(pScrn);
 191     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pPixmap);
 192     struct exa_entity *exa = ms->exa;
 193
 194     if (1)
 195         return FALSE;
 196
 197     if (pPixmap->drawable.depth < 15)
 198         return FALSE;
 199
 200     if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
 201         return FALSE;
 202
 203     if (!priv || !priv->tex)
 204         return FALSE;
 205
 206     if (alu != GXcopy)
 207         return FALSE;
 208
 209     if (!exa->ctx || !exa->ctx->surface_fill)
 210         return FALSE;
 211
 212     priv->color = fg;
 213
 214     return TRUE;
 215 }
 216
 217 static void
 218 ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
 219 {
 220     ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
 221     modesettingPtr ms = modesettingPTR(pScrn);
 222     struct exa_entity *exa = ms->exa;
 223     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pPixmap);
 224     struct pipe_surface *surf =
 225         exa->scrn->get_tex_surface(exa->scrn, priv->tex, 0, 0, 0,
 226                                    PIPE_BUFFER_USAGE_GPU_READ |
 227                                    PIPE_BUFFER_USAGE_GPU_WRITE);
 228
 229     exa->ctx->surface_fill(exa->ctx, surf, x0, y0, x1 - x0, y1 - y0,
 230                            priv->color);
 231
 232     exa->scrn->tex_surface_destroy(surf);
 233 }
 234
 235 static Bool
 236 ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
 237                int ydir, int alu, Pixel planeMask)
 238 {
 239     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 240     modesettingPtr ms = modesettingPTR(pScrn);
 241     struct exa_entity *exa = ms->exa;
 242     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 243     struct PixmapPriv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
 244
 245     if (1)
 246         return FALSE;
 247
 248     if (alu != GXcopy)
 249         return FALSE;
 250
 251     if (pSrcPixmap->drawable.depth < 15 || pDstPixmap->drawable.depth < 15)
 252         return FALSE;
 253
 254     if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
 255         return FALSE;
 256
 257     if (!priv || !src_priv)
 258         return FALSE;
 259
 260     if (!priv->tex || !src_priv->tex)
 261         return FALSE;
 262
 263     if (!exa->ctx || !exa->ctx->surface_copy)
 264         return FALSE;
 265
 266     priv->src_surf =
 267         exa->scrn->get_tex_surface(exa->scrn, src_priv->tex, 0, 0, 0,
 268                                    PIPE_BUFFER_USAGE_GPU_READ |
 269                                    PIPE_BUFFER_USAGE_GPU_WRITE);
 270
 271     return TRUE;
 272 }
 273
 274 static void
 275 ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
 276         int width, int height)
 277 {
 278     ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
 279     modesettingPtr ms = modesettingPTR(pScrn);
 280     struct exa_entity *exa = ms->exa;
 281     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
 282     struct pipe_surface *surf =
 283         exa->scrn->get_tex_surface(exa->scrn, priv->tex, 0, 0, 0,
 284                                    PIPE_BUFFER_USAGE_GPU_READ |
 285                                    PIPE_BUFFER_USAGE_GPU_WRITE);
 286
 287     exa->ctx->surface_copy(exa->ctx, surf, dstX, dstY, priv->src_surf,
 288                            srcX, srcY, width, height);
 289     exa->scrn->tex_surface_destroy(surf);
 290 }
 291
 292 static Bool
 293 ExaPrepareComposite(int op, PicturePtr pSrcPicture,
 294                     PicturePtr pMaskPicture, PicturePtr pDstPicture,
 295                     PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 296 {
 297     return FALSE;
 298 }
 299
 300 static void
 301 ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
 302              int dstX, int dstY, int width, int height)
 303 {
 304 }
 305
 306 static Bool
 307 ExaCheckComposite(int op,
 308                   PicturePtr pSrcPicture, PicturePtr pMaskPicture,
 309                   PicturePtr pDstPicture)
 310 {
 311     return FALSE;
 312 }
 313
 314 static void *
 315 ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
 316 {
 317     struct PixmapPriv *priv;
 318
 319     priv = xcalloc(1, sizeof(struct PixmapPriv));
 320     if (!priv)
 321         return NULL;
 322
 323     return priv;
 324 }
 325
 326 static void
 327 ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
 328 {
 329     struct PixmapPriv *priv = (struct PixmapPriv *)dPriv;
 330     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 331     modesettingPtr ms = modesettingPTR(pScrn);
 332
 333     if (!priv)
 334         return;
 335
 336     if (priv->tex)
 337         ms->screen->texture_destroy(priv->tex);
 338
 339     xfree(priv);
 340 }
 341
 342 static Bool
 343 ExaPixmapIsOffscreen(PixmapPtr pPixmap)
 344 {
 345     struct PixmapPriv *priv;
 346
 347     priv = exaGetPixmapDriverPrivate(pPixmap);
 348
 349     if (!priv)
 350         return FALSE;
 351
 352     if (priv->tex)
 353         return TRUE;
 354
 355     return FALSE;
 356 }
 357
 358 unsigned
 359 xorg_exa_get_pixmap_handle(PixmapPtr pPixmap)
 360 {
 361     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 362     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 363     modesettingPtr ms = modesettingPTR(pScrn);
 364     struct PixmapPriv *priv;
 365     struct pipe_buffer *buffer = NULL;
 366     unsigned handle;
 367     unsigned stride;
 368
 369     if (!ms->exa) {
 370         FatalError("NO MS->EXA\n");
 371         return 0;
 372     }
 373
 374     priv = exaGetPixmapDriverPrivate(pPixmap);
 375
 376     if (!priv) {
 377         FatalError("NO PIXMAP PRIVATE\n");
 378         return 0;
 379     }
 380
 381     drm_api_hooks.buffer_from_texture(priv->tex, &buffer, &stride);
 382     drm_api_hooks.handle_from_buffer(ms->screen, buffer, &handle);
 383     pipe_buffer_reference(&buffer, NULL);
 384     return handle;
 385 }
 386
 387 static Bool
 388 ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
 389                       int depth, int bitsPerPixel, int devKind,
 390                       pointer pPixData)
 391 {
 392     ScreenPtr pScreen = pPixmap->drawable.pScreen;
 393     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 394     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pPixmap);
 395     modesettingPtr ms = modesettingPTR(pScrn);
 396     struct exa_entity *exa = ms->exa;
 397
 398     if (!priv)
 399         return FALSE;
 400
 401     if (depth <= 0)
 402         depth = pPixmap->drawable.depth;
 403
 404     if (bitsPerPixel <= 0)
 405         bitsPerPixel = pPixmap->drawable.bitsPerPixel;
 406
 407     if (width <= 0)
 408         width = pPixmap->drawable.width;
 409
 410     if (height <= 0)
 411         height = pPixmap->drawable.height;
 412
 413     if (width <= 0 || height <= 0 || depth <= 0)
 414         return FALSE;
 415
 416     miModifyPixmapHeader(pPixmap, width, height, depth,
 417                              bitsPerPixel, devKind, NULL);
 418
 419     /* Deal with screen resize */
 420     if (priv->tex && (priv->tex->width[0] != width || priv->tex->height[0] != height)) {
 421         pipe_texture_reference(&priv->tex, NULL);
 422     }
 423
 424     if (!priv->tex) {
 425         struct pipe_texture template;
 426
 427         memset(&template, 0, sizeof(template));
 428         template.target = PIPE_TEXTURE_2D;
 429         exa_get_pipe_format(depth, &template.format, &bitsPerPixel);
 430         pf_get_block(template.format, &template.block);
 431         template.width[0] = width;
 432         template.height[0] = height;
 433         template.depth[0] = 1;
 434         template.last_level = 0;
 435         template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
 436         priv->tex = exa->scrn->texture_create(exa->scrn, &template);
 437     }
 438
 439     return TRUE;
 440 }
 441
 442 struct pipe_texture *
 443 xorg_exa_get_texture(PixmapPtr pPixmap)
 444 {
 445     struct PixmapPriv *priv = exaGetPixmapDriverPrivate(pPixmap);
 446     struct pipe_texture *tex = NULL;
 447     pipe_texture_reference(&tex, priv->tex);
 448     return tex;
 449 }
 450
 451 void
 452 xorg_exa_close(ScrnInfoPtr pScrn)
 453 {
 454     modesettingPtr ms = modesettingPTR(pScrn);
 455     struct exa_entity *exa = ms->exa;
 456
 457     if (exa->ctx)
 458         exa->ctx->destroy(exa->ctx);
 459
 460     exaDriverFini(pScrn->pScreen);
 461     xfree(exa);
 462     ms->exa = NULL;
 463 }
 464
 465 void *
 466 xorg_exa_init(ScrnInfoPtr pScrn)
 467 {
 468     modesettingPtr ms = modesettingPTR(pScrn);
 469     struct exa_entity *exa;
 470     ExaDriverPtr pExa;
 471
 472     exa = xcalloc(1, sizeof(struct exa_entity));
 473     if (!exa)
 474         return NULL;
 475
 476     pExa = exaDriverAlloc();
 477     if (!pExa) {
 478         goto out_err;
 479     }
 480
 481     memset(pExa, 0, sizeof(*pExa));
 482     pExa->exa_major = 2;
 483     pExa->exa_minor = 2;
 484     pExa->memoryBase = 0;
 485     pExa->memorySize = 0;
 486     pExa->offScreenBase = 0;
 487     pExa->pixmapOffsetAlign = 0;
 488     pExa->pixmapPitchAlign = 1;
 489     pExa->flags = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
 490     pExa->maxX = 8191;                 /* FIXME */
 491     pExa->maxY = 8191;                 /* FIXME */
 492     pExa->WaitMarker = ExaWaitMarker;
 493     pExa->MarkSync = ExaMarkSync;
 494     pExa->PrepareSolid = ExaPrepareSolid;
 495     pExa->Solid = ExaSolid;
 496     pExa->DoneSolid = ExaDone;
 497     pExa->PrepareCopy = ExaPrepareCopy;
 498     pExa->Copy = ExaCopy;
 499     pExa->DoneCopy = ExaDone;
 500     pExa->CheckComposite = ExaCheckComposite;
 501     pExa->PrepareComposite = ExaPrepareComposite;
 502     pExa->Composite = ExaComposite;
 503     pExa->DoneComposite = ExaDoneComposite;
 504     pExa->PixmapIsOffscreen = ExaPixmapIsOffscreen;
 505     pExa->PrepareAccess = ExaPrepareAccess;
 506     pExa->FinishAccess = ExaFinishAccess;
 507     pExa->CreatePixmap = ExaCreatePixmap;
 508     pExa->DestroyPixmap = ExaDestroyPixmap;
 509     pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
 510
 511     if (!exaDriverInit(pScrn->pScreen, pExa)) {
 512         goto out_err;
 513     }
 514
 515     exa->scrn = ms->screen;
 516     exa->ctx = drm_api_hooks.create_context(exa->scrn);
 517     /* Share context with DRI */
 518     ms->ctx = exa->ctx;
 519
 520     return (void *)exa;
 521
 522   out_err:
 523     xorg_exa_close(pScrn);
 524
 525     return NULL;
 526 }
 527
 528 /* vim: set sw=4 ts=8 sts=4: */