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,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  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 <vl_winsys.h>
  31 #include <pipe/p_video_context.h>
  32 #include <pipe/p_video_state.h>
  33 #include <pipe/p_state.h>
  34 #include <util/u_memory.h>
  35 #include "xvmc_private.h"
  36
  37 static enum pipe_mpeg12_macroblock_type TypeToPipe(int xvmc_mb_type)
  38 {
  39    if (xvmc_mb_type & XVMC_MB_TYPE_INTRA)
  40       return PIPE_MPEG12_MACROBLOCK_TYPE_INTRA;
  41    if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == XVMC_MB_TYPE_MOTION_FORWARD)
  42       return PIPE_MPEG12_MACROBLOCK_TYPE_FWD;
  43    if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == XVMC_MB_TYPE_MOTION_BACKWARD)
  44       return PIPE_MPEG12_MACROBLOCK_TYPE_BKWD;
  45    if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD))
  46       return PIPE_MPEG12_MACROBLOCK_TYPE_BI;
  47
  48    assert(0);
  49
  50    return -1;
  51 }
  52
  53 static enum pipe_mpeg12_picture_type PictureToPipe(int xvmc_pic)
  54 {
  55    switch (xvmc_pic) {
  56       case XVMC_TOP_FIELD:
  57          return PIPE_MPEG12_PICTURE_TYPE_FIELD_TOP;
  58       case XVMC_BOTTOM_FIELD:
  59          return PIPE_MPEG12_PICTURE_TYPE_FIELD_BOTTOM;
  60       case XVMC_FRAME_PICTURE:
  61          return PIPE_MPEG12_PICTURE_TYPE_FRAME;
  62       default:
  63          assert(0);
  64    }
  65
  66    return -1;
  67 }
  68
  69 static enum pipe_mpeg12_motion_type MotionToPipe(int xvmc_motion_type, int xvmc_dct_type)
  70 {
  71    switch (xvmc_motion_type) {
  72       case XVMC_PREDICTION_FRAME:
  73          return xvmc_dct_type == XVMC_DCT_TYPE_FIELD ?
  74             PIPE_MPEG12_MOTION_TYPE_16x8 : PIPE_MPEG12_MOTION_TYPE_FRAME;
  75       case XVMC_PREDICTION_FIELD:
  76          return PIPE_MPEG12_MOTION_TYPE_FIELD;
  77       case XVMC_PREDICTION_DUAL_PRIME:
  78          return PIPE_MPEG12_MOTION_TYPE_DUALPRIME;
  79       default:
  80          assert(0);
  81    }
  82
  83    return -1;
  84 }
  85
  86 static bool
  87 CreateOrResizeBackBuffer(struct vl_context *vctx, unsigned int width, unsigned int height,
  88                          struct pipe_surface **backbuffer)
  89 {
  90    struct pipe_video_context *vpipe;
  91    struct pipe_texture template;
  92    struct pipe_texture *tex;
  93
  94    assert(vctx);
  95
  96    vpipe = vctx->vpipe;
  97
  98    if (*backbuffer) {
  99       if ((*backbuffer)->width != width || (*backbuffer)->height != height)
 100          pipe_surface_reference(backbuffer, NULL);
 101       else
 102          return true;
 103    }
 104
 105    memset(&template, 0, sizeof(struct pipe_texture));
 106    template.target = PIPE_TEXTURE_2D;
 107    template.format = vctx->vscreen->format;
 108    template.last_level = 0;
 109    template.width[0] = width;
 110    template.height[0] = height;
 111    template.depth[0] = 1;
 112    pf_get_block(template.format, &template.block);
 113    template.tex_usage = PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
 114
 115    tex = vpipe->screen->texture_create(vpipe->screen, &template);
 116    if (!tex)
 117       return false;
 118
 119    *backbuffer = vpipe->screen->get_tex_surface(vpipe->screen, tex, 0, 0, 0,
 120                                                 PIPE_BUFFER_USAGE_GPU_READ |
 121                                                 PIPE_BUFFER_USAGE_GPU_WRITE);
 122    pipe_texture_reference(&tex, NULL);
 123
 124    if (!*backbuffer)
 125       return false;
 126
 127    /* Clear the backbuffer in case the video doesn't cover the whole window */
 128    /* FIXME: Need to clear every time a frame moves and leaves dirty rects */
 129    vpipe->surface_fill(vpipe, *backbuffer, 0, 0, width, height, 0);
 130
 131    return true;
 132 }
 133
 134 static void
 135 MacroBlocksToPipe(const XvMCMacroBlockArray *xvmc_macroblocks,
 136                   const XvMCBlockArray *xvmc_blocks,
 137                   unsigned int first_macroblock,
 138                   unsigned int num_macroblocks,
 139                   struct pipe_mpeg12_macroblock *pipe_macroblocks)
 140 {
 141    unsigned int i, j, k, l;
 142    XvMCMacroBlock *xvmc_mb;
 143
 144    assert(xvmc_macroblocks);
 145    assert(xvmc_blocks);
 146    assert(pipe_macroblocks);
 147    assert(num_macroblocks);
 148
 149    xvmc_mb = xvmc_macroblocks->macro_blocks + first_macroblock;
 150
 151    for (i = 0; i < num_macroblocks; ++i) {
 152       pipe_macroblocks->base.codec = PIPE_VIDEO_CODEC_MPEG12;
 153       pipe_macroblocks->mbx = xvmc_mb->x;
 154       pipe_macroblocks->mby = xvmc_mb->y;
 155       pipe_macroblocks->mb_type = TypeToPipe(xvmc_mb->macroblock_type);
 156       if (pipe_macroblocks->mb_type != PIPE_MPEG12_MACROBLOCK_TYPE_INTRA)
 157          pipe_macroblocks->mo_type = MotionToPipe(xvmc_mb->motion_type, xvmc_mb->dct_type);
 158       /* Get rid of Valgrind 'undefined' warnings */
 159       else
 160          pipe_macroblocks->mo_type = -1;
 161       pipe_macroblocks->dct_type = xvmc_mb->dct_type == XVMC_DCT_TYPE_FIELD ?
 162          PIPE_MPEG12_DCT_TYPE_FIELD : PIPE_MPEG12_DCT_TYPE_FRAME;
 163
 164       for (j = 0; j < 2; ++j)
 165          for (k = 0; k < 2; ++k)
 166             for (l = 0; l < 2; ++l)
 167                pipe_macroblocks->pmv[j][k][l] = xvmc_mb->PMV[j][k][l];
 168
 169       pipe_macroblocks->cbp = xvmc_mb->coded_block_pattern;
 170       pipe_macroblocks->blocks = xvmc_blocks->blocks + xvmc_mb->index * BLOCK_SIZE_SAMPLES;
 171
 172       ++pipe_macroblocks;
 173       ++xvmc_mb;
 174    }
 175 }
 176
 177 Status XvMCCreateSurface(Display *dpy, XvMCContext *context, XvMCSurface *surface)
 178 {
 179    XvMCContextPrivate *context_priv;
 180    struct pipe_video_context *vpipe;
 181    XvMCSurfacePrivate *surface_priv;
 182    struct pipe_video_surface *vsfc;
 183
 184    assert(dpy);
 185
 186    if (!context)
 187       return XvMCBadContext;
 188    if (!surface)
 189       return XvMCBadSurface;
 190
 191    context_priv = context->privData;
 192    vpipe = context_priv->vctx->vpipe;
 193
 194    surface_priv = CALLOC(1, sizeof(XvMCSurfacePrivate));
 195    if (!surface_priv)
 196       return BadAlloc;
 197
 198    vsfc = vpipe->screen->video_surface_create(vpipe->screen, vpipe->chroma_format,
 199                                               vpipe->width, vpipe->height);
 200    if (!vsfc) {
 201       FREE(surface_priv);
 202       return BadAlloc;
 203    }
 204
 205    surface_priv->pipe_vsfc = vsfc;
 206    surface_priv->context = context;
 207
 208    surface->surface_id = XAllocID(dpy);
 209    surface->context_id = context->context_id;
 210    surface->surface_type_id = context->surface_type_id;
 211    surface->width = context->width;
 212    surface->height = context->height;
 213    surface->privData = surface_priv;
 214
 215    SyncHandle();
 216
 217    return Success;
 218 }
 219
 220 Status XvMCRenderSurface(Display *dpy, XvMCContext *context, unsigned int picture_structure,
 221                          XvMCSurface *target_surface, XvMCSurface *past_surface, XvMCSurface *future_surface,
 222                          unsigned int flags, unsigned int num_macroblocks, unsigned int first_macroblock,
 223                          XvMCMacroBlockArray *macroblocks, XvMCBlockArray *blocks
 224 )
 225 {
 226    struct pipe_video_context *vpipe;
 227    struct pipe_surface *t_vsfc;
 228    struct pipe_surface *p_vsfc;
 229    struct pipe_surface *f_vsfc;
 230    XvMCContextPrivate *context_priv;
 231    XvMCSurfacePrivate *target_surface_priv;
 232    XvMCSurfacePrivate *past_surface_priv;
 233    XvMCSurfacePrivate *future_surface_priv;
 234    struct pipe_mpeg12_macroblock pipe_macroblocks[num_macroblocks];
 235
 236    assert(dpy);
 237
 238    if (!context || !context->privData)
 239       return XvMCBadContext;
 240    if (!target_surface || !target_surface->privData)
 241       return XvMCBadSurface;
 242
 243    if (picture_structure != XVMC_TOP_FIELD &&
 244        picture_structure != XVMC_BOTTOM_FIELD &&
 245        picture_structure != XVMC_FRAME_PICTURE)
 246       return BadValue;
 247    /* Bkwd pred equivalent to fwd (past && !future) */
 248    if (future_surface && !past_surface)
 249       return BadMatch;
 250
 251    assert(context->context_id == target_surface->context_id);
 252    assert(!past_surface || context->context_id == past_surface->context_id);
 253    assert(!future_surface || context->context_id == future_surface->context_id);
 254
 255    assert(macroblocks);
 256    assert(blocks);
 257
 258    assert(macroblocks->context_id == context->context_id);
 259    assert(blocks->context_id == context->context_id);
 260
 261    assert(flags == 0 || flags == XVMC_SECOND_FIELD);
 262
 263    target_surface_priv = target_surface->privData;
 264    past_surface_priv = past_surface ? past_surface->privData : NULL;
 265    future_surface_priv = future_surface ? future_surface->privData : NULL;
 266
 267    assert(target_surface_priv->context == context);
 268    assert(!past_surface || past_surface_priv->context == context);
 269    assert(!future_surface || future_surface_priv->context == context);
 270
 271    context_priv = context->privData;
 272    vpipe = context_priv->vctx->vpipe;
 273
 274    t_vsfc = target_surface_priv->pipe_vsfc;
 275    p_vsfc = past_surface ? past_surface_priv->pipe_vsfc : NULL;
 276    f_vsfc = future_surface ? future_surface_priv->pipe_vsfc : NULL;
 277
 278    MacroBlocksToPipe(macroblocks, blocks, first_macroblock,
 279                      num_macroblocks, pipe_macroblocks);
 280
 281    vpipe->set_decode_target(vpipe, t_vsfc);
 282    vpipe->decode_macroblocks(vpipe, p_vsfc, f_vsfc, num_macroblocks,
 283                              &pipe_macroblocks->base, target_surface_priv->render_fence);
 284
 285    return Success;
 286 }
 287
 288 Status XvMCFlushSurface(Display *dpy, XvMCSurface *surface)
 289 {
 290    assert(dpy);
 291
 292    if (!surface)
 293       return XvMCBadSurface;
 294
 295    return Success;
 296 }
 297
 298 Status XvMCSyncSurface(Display *dpy, XvMCSurface *surface)
 299 {
 300    assert(dpy);
 301
 302    if (!surface)
 303       return XvMCBadSurface;
 304
 305    return Success;
 306 }
 307
 308 Status XvMCPutSurface(Display *dpy, XvMCSurface *surface, Drawable drawable,
 309                       short srcx, short srcy, unsigned short srcw, unsigned short srch,
 310                       short destx, short desty, unsigned short destw, unsigned short desth,
 311                       int flags)
 312 {
 313    Window root;
 314    int x, y;
 315    unsigned int width, height;
 316    unsigned int border_width;
 317    unsigned int depth;
 318    struct pipe_video_context *vpipe;
 319    XvMCSurfacePrivate *surface_priv;
 320    XvMCContextPrivate *context_priv;
 321    XvMCContext *context;
 322    struct pipe_video_rect src_rect = {srcx, srcy, srcw, srch};
 323    struct pipe_video_rect dst_rect = {destx, desty, destw, desth};
 324
 325    assert(dpy);
 326
 327    if (!surface || !surface->privData)
 328       return XvMCBadSurface;
 329
 330    if (XGetGeometry(dpy, drawable, &root, &x, &y, &width, &height, &border_width, &depth) == BadDrawable)
 331       return BadDrawable;
 332
 333    assert(flags == XVMC_TOP_FIELD || flags == XVMC_BOTTOM_FIELD || flags == XVMC_FRAME_PICTURE);
 334    assert(srcx + srcw - 1 < surface->width);
 335    assert(srcy + srch - 1 < surface->height);
 336    /*
 337     * Some apps (mplayer) hit these asserts because they call
 338     * this function after the window has been resized by the WM
 339     * but before they've handled the corresponding XEvent and
 340     * know about the new dimensions. The output should be clipped
 341     * until the app updates destw and desth.
 342     */
 343    /*
 344    assert(destx + destw - 1 < width);
 345    assert(desty + desth - 1 < height);
 346     */
 347
 348    surface_priv = surface->privData;
 349    context = surface_priv->context;
 350    context_priv = context->privData;
 351    vpipe = context_priv->vctx->vpipe;
 352
 353    if (!CreateOrResizeBackBuffer(context_priv->vctx, width, height, &context_priv->backbuffer))
 354       return BadAlloc;
 355
 356    vpipe->render_picture(vpipe, surface_priv->pipe_vsfc, PictureToPipe(flags), &src_rect,
 357                          context_priv->backbuffer, &dst_rect, surface_priv->disp_fence);
 358
 359    vl_video_bind_drawable(context_priv->vctx, drawable);
 360
 361    vpipe->screen->flush_frontbuffer
 362    (
 363       vpipe->screen,
 364       context_priv->backbuffer,
 365       vpipe->priv
 366    );
 367
 368    return Success;
 369 }
 370
 371 Status XvMCGetSurfaceStatus(Display *dpy, XvMCSurface *surface, int *status)
 372 {
 373    assert(dpy);
 374
 375    if (!surface)
 376       return XvMCBadSurface;
 377
 378    assert(status);
 379
 380    *status = 0;
 381
 382    return Success;
 383 }
 384
 385 Status XvMCDestroySurface(Display *dpy, XvMCSurface *surface)
 386 {
 387    XvMCSurfacePrivate *surface_priv;
 388
 389    assert(dpy);
 390
 391    if (!surface || !surface->privData)
 392       return XvMCBadSurface;
 393
 394    surface_priv = surface->privData;
 395    pipe_video_surface_reference(&surface_priv->pipe_vsfc, NULL);
 396    FREE(surface_priv);
 397    surface->privData = NULL;
 398
 399    return Success;
 400 }
 401
 402 Status XvMCHideSurface(Display *dpy, XvMCSurface *surface)
 403 {
 404    assert(dpy);
 405
 406    if (!surface || !surface->privData)
 407       return XvMCBadSurface;
 408
 409    /* No op, only for overlaid rendering */
 410
 411    return Success;
 412 }