src/xvmc/block.c

   1 #include <assert.h>
   2 #include <X11/Xlib.h>
   3 #include <X11/extensions/XvMC.h>
   4 #include <util/u_memory.h>
   5 #include <vl_display.h>
   6 #include <vl_screen.h>
   7 #include <vl_context.h>
   8
   9 #define BLOCK_SIZE (64 * 2)
  10
  11 Status XvMCCreateBlocks(Display *display, XvMCContext *context, unsigned int num_blocks, XvMCBlockArray *blocks)
  12 {
  13         struct vlContext *vl_ctx;
  14
  15         assert(display);
  16
  17         if (!context)
  18                 return XvMCBadContext;
  19         if (num_blocks == 0)
  20                 return BadValue;
  21
  22         assert(blocks);
  23
  24         vl_ctx = context->privData;
  25         assert(display == vlGetNativeDisplay(vlGetDisplay(vlContextGetScreen(vl_ctx))));
  26
  27         blocks->context_id = context->context_id;
  28         blocks->num_blocks = num_blocks;
  29         blocks->blocks = MALLOC(BLOCK_SIZE * num_blocks);
  30         /* Since we don't have a VL type for blocks, set privData to the display so we can catch mismatches */
  31         blocks->privData = display;
  32
  33         return Success;
  34 }
  35
  36 Status XvMCDestroyBlocks(Display *display, XvMCBlockArray *blocks)
  37 {
  38         assert(display);
  39         assert(blocks);
  40         assert(display == blocks->privData);
  41         FREE(blocks->blocks);
  42
  43         return Success;
  44 }
  45
  46 Status XvMCCreateMacroBlocks(Display *display, XvMCContext *context, unsigned int num_blocks, XvMCMacroBlockArray *blocks)
  47 {
  48         struct vlContext *vl_ctx;
  49
  50         assert(display);
  51
  52         if (!context)
  53                 return XvMCBadContext;
  54         if (num_blocks == 0)
  55                 return BadValue;
  56
  57         assert(blocks);
  58
  59         vl_ctx = context->privData;
  60         assert(display == vlGetNativeDisplay(vlGetDisplay(vlContextGetScreen(vl_ctx))));
  61
  62         blocks->context_id = context->context_id;
  63         blocks->num_blocks = num_blocks;
  64         blocks->macro_blocks = MALLOC(sizeof(XvMCMacroBlock) * num_blocks);
  65         /* Since we don't have a VL type for blocks, set privData to the display so we can catch mismatches */
  66         blocks->privData = display;
  67
  68         return Success;
  69 }
  70
  71 Status XvMCDestroyMacroBlocks(Display *display, XvMCMacroBlockArray *blocks)
  72 {
  73         assert(display);
  74         assert(blocks);
  75         assert(display == blocks->privData);
  76         FREE(blocks->macro_blocks);
  77
  78         return Success;
  79 }