src/gallium/state_trackers/xorg/xvmc/surface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Younes Manton.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include <assert.h>
  29 #include <X11/Xlibint.h>
  30 #include <pipe/p_video_context.h>
  31 #include <pipe/p_video_state.h>
  32 #include <pipe/p_state.h>
  33 #include <util/u_memory.h>
  34 #include "xvmc_private.h"
  35
  36 static enum pipe_mpeg12_macroblock_type TypeToPipe(int xvmc_mb_type)
  37 {
  38    if (xvmc_mb_type & XVMC_MB_TYPE_INTRA)
  39       return PIPE_MPEG12_MACROBLOCK_TYPE_INTRA;
  40    if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == XVMC_MB_TYPE_MOTION_FORWARD)
  41       return PIPE_MPEG12_MACROBLOCK_TYPE_FWD;
  42    if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == XVMC_MB_TYPE_MOTION_BACKWARD)
  43       return PIPE_MPEG12_MACROBLOCK_TYPE_BKWD;
  44    if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD))
  45       return PIPE_MPEG12_MACROBLOCK_TYPE_BI;
  46
  47    assert(0);
  48
  49    return -1;
  50 }
  51
  52 static enum pipe_mpeg12_picture_type PictureToPipe(int xvmc_pic)
  53 {
  54    switch (xvmc_pic) {
  55       case XVMC_TOP_FIELD:
  56          return PIPE_MPEG12_PICTURE_TYPE_FIELD_TOP;
  57       case XVMC_BOTTOM_FIELD:
  58          return PIPE_MPEG12_PICTURE_TYPE_FIELD_BOTTOM;
  59       case XVMC_FRAME_PICTURE:
  60          return PIPE_MPEG12_PICTURE_TYPE_FRAME;
  61       default:
  62          assert(0);
  63    }
  64
  65    return -1;
  66 }
  67
  68 static enum pipe_mpeg12_motion_type MotionToPipe(int xvmc_motion_type, int xvmc_dct_type)
  69 {
  70    switch (xvmc_motion_type) {
  71       case XVMC_PREDICTION_FRAME:
  72          return xvmc_dct_type == XVMC_DCT_TYPE_FIELD ?
  73             PIPE_MPEG12_MOTION_TYPE_16x8 : PIPE_MPEG12_MOTION_TYPE_FRAME;
  74       case XVMC_PREDICTION_FIELD:
  75          return PIPE_MPEG12_MOTION_TYPE_FIELD;
  76       case XVMC_PREDICTION_DUAL_PRIME:
  77          return PIPE_MPEG12_MOTION_TYPE_DUALPRIME;
  78       default:
  79          assert(0);
  80    }
  81
  82    return -1;
  83 }
  84
  85 static bool
  86 CreateOrResizeBackBuffer(struct pipe_video_context *vpipe, unsigned int width, unsigned int height,
  87                          struct pipe_surface **backbuffer)
  88 {
  89    struct pipe_texture template;
  90    struct pipe_texture *tex;
  91
  92    assert(vpipe);
  93
  94    if (*backbuffer) {
  95       if ((*backbuffer)->width != width || (*backbuffer)->height != height)
  96          pipe_surface_reference(backbuffer, NULL);
  97       else
  98          return true;
  99    }
 100
 101    memset(&template, 0, sizeof(struct pipe_texture));
 102    template.target = PIPE_TEXTURE_2D;
 103    /* XXX: Needs to match the drawable's format? */
 104    template.format = PIPE_FORMAT_B8G8R8X8_UNORM;
 105    template.last_level = 0;
 106    template.width0 = width;
 107    template.height0 = height;
 108    template.depth0 = 1;
 109    template.tex_usage = PIPE_TEXTURE_USAGE_SHARED;
 110
 111    tex = vpipe->screen->texture_create(vpipe->screen, &template);
 112    if (!tex)
 113       return false;
 114
 115    *backbuffer = vpipe->screen->get_tex_surface(vpipe->screen, tex, 0, 0, 0,
 116                                                 PIPE_BUFFER_USAGE_GPU_READ |
 117                                                 PIPE_BUFFER_USAGE_GPU_WRITE);
 118    pipe_texture_reference(&tex, NULL);
 119
 120    if (!*backbuffer)
 121       return false;
 122
 123    /* Clear the backbuffer in case the video doesn't cover the whole window */
 124    /* FIXME: Need to clear every time a frame moves and leaves dirty rects */
 125    vpipe->clear_surface(vpipe, 0, 0, width, height, 0, *backbuffer);
 126
 127    return true;
 128 }
 129
 130 static void
 131 MacroBlocksToPipe(const XvMCMacroBlockArray *xvmc_macroblocks,
 132                   const XvMCBlockArray *xvmc_blocks,
 133                   unsigned int first_macroblock,
 134                   unsigned int num_macroblocks,
 135                   struct pipe_mpeg12_macroblock *pipe_macroblocks)
 136 {
 137    unsigned int i, j, k, l;
 138    XvMCMacroBlock *xvmc_mb;
 139
 140    assert(xvmc_macroblocks);
 141    assert(xvmc_blocks);
 142    assert(pipe_macroblocks);
 143    assert(num_macroblocks);
 144
 145    xvmc_mb = xvmc_macroblocks->macro_blocks + first_macroblock;
 146
 147    for (i = 0; i < num_macroblocks; ++i) {
 148       pipe_macroblocks->base.codec = PIPE_VIDEO_CODEC_MPEG12;
 149       pipe_macroblocks->mbx = xvmc_mb->x;
 150       pipe_macroblocks->mby = xvmc_mb->y;
 151       pipe_macroblocks->mb_type = TypeToPipe(xvmc_mb->macroblock_type);
 152       if (pipe_macroblocks->mb_type != PIPE_MPEG12_MACROBLOCK_TYPE_INTRA)
 153          pipe_macroblocks->mo_type = MotionToPipe(xvmc_mb->motion_type, xvmc_mb->dct_type);
 154       /* Get rid of Valgrind 'undefined' warnings */
 155       else
 156          pipe_macroblocks->mo_type = -1;
 157       pipe_macroblocks->dct_type = xvmc_mb->dct_type == XVMC_DCT_TYPE_FIELD ?
 158          PIPE_MPEG12_DCT_TYPE_FIELD : PIPE_MPEG12_DCT_TYPE_FRAME;
 159
 160       for (j = 0; j < 2; ++j)
 161          for (k = 0; k < 2; ++k)
 162             for (l = 0; l < 2; ++l)
 163                pipe_macroblocks->pmv[j][k][l] = xvmc_mb->PMV[j][k][l];
 164
 165       pipe_macroblocks->cbp = xvmc_mb->coded_block_pattern;
 166       pipe_macroblocks->blocks = xvmc_blocks->blocks + xvmc_mb->index * BLOCK_SIZE_SAMPLES;
 167
 168       ++pipe_macroblocks;
 169       ++xvmc_mb;
 170    }
 171 }
 172
 173 Status XvMCCreateSurface(Display *dpy, XvMCContext *context, XvMCSurface *surface)
 174 {
 175    XvMCContextPrivate *context_priv;
 176    struct pipe_video_context *vpipe;
 177    XvMCSurfacePrivate *surface_priv;
 178    struct pipe_video_surface *vsfc;
 179
 180    assert(dpy);
 181
 182    if (!context)
 183       return XvMCBadContext;
 184    if (!surface)
 185       return XvMCBadSurface;
 186
 187    context_priv = context->privData;
 188    vpipe = context_priv->vpipe;
 189
 190    surface_priv = CALLOC(1, sizeof(XvMCSurfacePrivate));
 191    if (!surface_priv)
 192       return BadAlloc;
 193
 194    vsfc = vpipe->screen->video_surface_create(vpipe->screen, vpipe->chroma_format,
 195                                               vpipe->width, vpipe->height);
 196    if (!vsfc) {
 197       FREE(surface_priv);
 198       return BadAlloc;
 199    }
 200
 201    surface_priv->pipe_vsfc = vsfc;
 202    surface_priv->context = context;
 203
 204    surface->surface_id = XAllocID(dpy);
 205    surface->context_id = context->context_id;
 206    surface->surface_type_id = context->surface_type_id;
 207    surface->width = context->width;
 208    surface->height = context->height;
 209    surface->privData = surface_priv;
 210
 211    SyncHandle();
 212
 213    return Success;
 214 }
 215
 216 Status XvMCRenderSurface(Display *dpy, XvMCContext *context, unsigned int picture_structure,
 217                          XvMCSurface *target_surface, XvMCSurface *past_surface, XvMCSurface *future_surface,
 218                          unsigned int flags, unsigned int num_macroblocks, unsigned int first_macroblock,
 219                          XvMCMacroBlockArray *macroblocks, XvMCBlockArray *blocks
 220 )
 221 {
 222    struct pipe_video_context *vpipe;
 223    struct pipe_surface *t_vsfc;
 224    struct pipe_surface *p_vsfc;
 225    struct pipe_surface *f_vsfc;
 226    XvMCContextPrivate *context_priv;
 227    XvMCSurfacePrivate *target_surface_priv;
 228    XvMCSurfacePrivate *past_surface_priv;
 229    XvMCSurfacePrivate *future_surface_priv;
 230    struct pipe_mpeg12_macroblock pipe_macroblocks[num_macroblocks];
 231
 232    assert(dpy);
 233
 234    if (!context || !context->privData)
 235       return XvMCBadContext;
 236    if (!target_surface || !target_surface->privData)
 237       return XvMCBadSurface;
 238
 239    if (picture_structure != XVMC_TOP_FIELD &&
 240        picture_structure != XVMC_BOTTOM_FIELD &&
 241        picture_structure != XVMC_FRAME_PICTURE)
 242       return BadValue;
 243    /* Bkwd pred equivalent to fwd (past && !future) */
 244    if (future_surface && !past_surface)
 245       return BadMatch;
 246
 247    assert(context->context_id == target_surface->context_id);
 248    assert(!past_surface || context->context_id == past_surface->context_id);
 249    assert(!future_surface || context->context_id == future_surface->context_id);
 250
 251    assert(macroblocks);
 252    assert(blocks);
 253
 254    assert(macroblocks->context_id == context->context_id);
 255    assert(blocks->context_id == context->context_id);
 256
 257    assert(flags == 0 || flags == XVMC_SECOND_FIELD);
 258
 259    target_surface_priv = target_surface->privData;
 260    past_surface_priv = past_surface ? past_surface->privData : NULL;
 261    future_surface_priv = future_surface ? future_surface->privData : NULL;
 262
 263    assert(target_surface_priv->context == context);
 264    assert(!past_surface || past_surface_priv->context == context);
 265    assert(!future_surface || future_surface_priv->context == context);
 266
 267    context_priv = context->privData;
 268    vpipe = context_priv->vpipe;
 269
 270    t_vsfc = target_surface_priv->pipe_vsfc;
 271    p_vsfc = past_surface ? past_surface_priv->pipe_vsfc : NULL;
 272    f_vsfc = future_surface ? future_surface_priv->pipe_vsfc : NULL;
 273
 274    MacroBlocksToPipe(macroblocks, blocks, first_macroblock,
 275                      num_macroblocks, pipe_macroblocks);
 276
 277    vpipe->set_decode_target(vpipe, t_vsfc);
 278    vpipe->decode_macroblocks(vpipe, p_vsfc, f_vsfc, num_macroblocks,
 279                              &pipe_macroblocks->base, target_surface_priv->render_fence);
 280
 281    return Success;
 282 }
 283
 284 Status XvMCFlushSurface(Display *dpy, XvMCSurface *surface)
 285 {
 286    assert(dpy);
 287
 288    if (!surface)
 289       return XvMCBadSurface;
 290
 291    return Success;
 292 }
 293
 294 Status XvMCSyncSurface(Display *dpy, XvMCSurface *surface)
 295 {
 296    assert(dpy);
 297
 298    if (!surface)
 299       return XvMCBadSurface;
 300
 301    return Success;
 302 }
 303
 304 Status XvMCPutSurface(Display *dpy, XvMCSurface *surface, Drawable drawable,
 305                       short srcx, short srcy, unsigned short srcw, unsigned short srch,
 306                       short destx, short desty, unsigned short destw, unsigned short desth,
 307                       int flags)
 308 {
 309    Window root;
 310    int x, y;
 311    unsigned int width, height;
 312    unsigned int border_width;
 313    unsigned int depth;
 314    struct pipe_video_context *vpipe;
 315    XvMCSurfacePrivate *surface_priv;
 316    XvMCContextPrivate *context_priv;
 317    XvMCContext *context;
 318    struct pipe_video_rect src_rect = {srcx, srcy, srcw, srch};
 319    struct pipe_video_rect dst_rect = {destx, desty, destw, desth};
 320
 321    assert(dpy);
 322
 323    if (!surface || !surface->privData)
 324       return XvMCBadSurface;
 325
 326    if (XGetGeometry(dpy, drawable, &root, &x, &y, &width, &height, &border_width, &depth) == BadDrawable)
 327       return BadDrawable;
 328
 329    assert(flags == XVMC_TOP_FIELD || flags == XVMC_BOTTOM_FIELD || flags == XVMC_FRAME_PICTURE);
 330    assert(srcx + srcw - 1 < surface->width);
 331    assert(srcy + srch - 1 < surface->height);
 332    /*
 333     * Some apps (mplayer) hit these asserts because they call
 334     * this function after the window has been resized by the WM
 335     * but before they've handled the corresponding XEvent and
 336     * know about the new dimensions. The output should be clipped
 337     * until the app updates destw and desth.
 338     */
 339    /*
 340    assert(destx + destw - 1 < width);
 341    assert(desty + desth - 1 < height);
 342     */
 343
 344    surface_priv = surface->privData;
 345    context = surface_priv->context;
 346    context_priv = context->privData;
 347    vpipe = context_priv->vpipe;
 348
 349    if (!CreateOrResizeBackBuffer(vpipe, width, height, &context_priv->backbuffer))
 350       return BadAlloc;
 351
 352    vpipe->render_picture(vpipe, surface_priv->pipe_vsfc, PictureToPipe(flags), &src_rect,
 353                          context_priv->backbuffer, &dst_rect, surface_priv->disp_fence);
 354
 355    vl_video_bind_drawable(vpipe, drawable);
 356
 357    vpipe->screen->flush_frontbuffer
 358    (
 359       vpipe->screen,
 360       context_priv->backbuffer,
 361       vpipe->priv
 362    );
 363
 364    return Success;
 365 }
 366
 367 Status XvMCGetSurfaceStatus(Display *dpy, XvMCSurface *surface, int *status)
 368 {
 369    assert(dpy);
 370
 371    if (!surface)
 372       return XvMCBadSurface;
 373
 374    assert(status);
 375
 376    *status = 0;
 377
 378    return Success;
 379 }
 380
 381 Status XvMCDestroySurface(Display *dpy, XvMCSurface *surface)
 382 {
 383    XvMCSurfacePrivate *surface_priv;
 384
 385    assert(dpy);
 386
 387    if (!surface || !surface->privData)
 388       return XvMCBadSurface;
 389
 390    surface_priv = surface->privData;
 391    pipe_video_surface_reference(&surface_priv->pipe_vsfc, NULL);
 392    FREE(surface_priv);
 393    surface->privData = NULL;
 394
 395    return Success;
 396 }
 397
 398 Status XvMCHideSurface(Display *dpy, XvMCSurface *surface)
 399 {
 400    assert(dpy);
 401
 402    if (!surface || !surface->privData)
 403       return XvMCBadSurface;
 404
 405    /* No op, only for overlaid rendering */
 406
 407    return Success;
 408 }