src/gallium/state_trackers/xorg/xvmc/block.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/Xlib.h>
  30 #include <X11/extensions/XvMClib.h>
  31 #include <util/u_memory.h>
  32 #include "xvmc_private.h"
  33
  34 Status XvMCCreateBlocks(Display *dpy, XvMCContext *context, unsigned int num_blocks, XvMCBlockArray *blocks)
  35 {
  36    assert(dpy);
  37
  38    if (!context)
  39       return XvMCBadContext;
  40    if (num_blocks == 0)
  41       return BadValue;
  42
  43    assert(blocks);
  44
  45    blocks->context_id = context->context_id;
  46    blocks->num_blocks = num_blocks;
  47    blocks->blocks = MALLOC(BLOCK_SIZE_BYTES * num_blocks);
  48    blocks->privData = NULL;
  49
  50    return Success;
  51 }
  52
  53 Status XvMCDestroyBlocks(Display *dpy, XvMCBlockArray *blocks)
  54 {
  55    assert(dpy);
  56    assert(blocks);
  57    FREE(blocks->blocks);
  58
  59    return Success;
  60 }
  61
  62 Status XvMCCreateMacroBlocks(Display *dpy, XvMCContext *context, unsigned int num_blocks, XvMCMacroBlockArray *blocks)
  63 {
  64    assert(dpy);
  65
  66    if (!context)
  67       return XvMCBadContext;
  68    if (num_blocks == 0)
  69       return BadValue;
  70
  71    assert(blocks);
  72
  73    blocks->context_id = context->context_id;
  74    blocks->num_blocks = num_blocks;
  75    blocks->macro_blocks = MALLOC(sizeof(XvMCMacroBlock) * num_blocks);
  76    blocks->privData = NULL;
  77
  78    return Success;
  79 }
  80
  81 Status XvMCDestroyMacroBlocks(Display *dpy, XvMCMacroBlockArray *blocks)
  82 {
  83    assert(dpy);
  84    assert(blocks);
  85    FREE(blocks->macro_blocks);
  86
  87    return Success;
  88 }