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#include <assert.h>
#include <X11/Xlib.h>
#include <X11/extensions/XvMC.h>
#include <vl_context.h>
#include <vl_surface.h>
static enum VL_PICTURE PictureToVL(int xvmc_pic)
{
enum VL_PICTURE vl_pic;
switch (xvmc_pic)
{
case XVMC_TOP_FIELD:
{
vl_pic = VL_TOP_FIELD;
break;
}
case XVMC_BOTTOM_FIELD:
{
vl_pic = VL_BOTTOM_FIELD;
break;
}
case XVMC_FRAME_PICTURE:
{
vl_pic = VL_FRAME_PICTURE;
break;
}
default:
assert(0);
}
return vl_pic;
}
static enum VL_MC_TYPE MotionToVL(int xvmc_motion_type)
{
enum VL_MC_TYPE vl_mc_type;
switch (xvmc_motion_type)
{
case XVMC_PREDICTION_FRAME:
{
vl_mc_type = VL_FRAME_MC;
break;
}
case XVMC_PREDICTION_FIELD:
{
vl_mc_type = VL_FIELD_MC;
break;
}
case XVMC_PREDICTION_DUAL_PRIME:
{
vl_mc_type = VL_DUAL_PRIME_MC;
break;
}
default:
assert(0);
}
return vl_mc_type;
}
Status XvMCCreateSurface(Display *display, XvMCContext *context, XvMCSurface *surface)
{
struct VL_CONTEXT *vl_ctx;
struct VL_SURFACE *vl_sfc;
assert(display);
if (!context)
return XvMCBadContext;
if (!surface)
return XvMCBadSurface;
vl_ctx = context->privData;
assert(display == vl_ctx->display);
vlCreateSurface(vl_ctx, &vl_sfc);
surface->surface_id = XAllocID(display);
surface->context_id = context->context_id;
surface->surface_type_id = context->surface_type_id;
surface->width = context->width;
surface->height = context->height;
surface->privData = vl_sfc;
return Success;
}
Status XvMCRenderSurface
(
Display *display,
XvMCContext *context,
unsigned int picture_structure,
XvMCSurface *target_surface,
XvMCSurface *past_surface,
XvMCSurface *future_surface,
unsigned int flags,
unsigned int num_macroblocks,
unsigned int first_macroblock,
XvMCMacroBlockArray *macroblocks,
XvMCBlockArray *blocks
)
{
struct VL_CONTEXT *vl_ctx;
struct VL_SURFACE *target_vl_surface;
struct VL_SURFACE *past_vl_surface;
struct VL_SURFACE *future_vl_surface;
unsigned int i;
assert(display);
if (!context)
return XvMCBadContext;
if (!target_surface)
return XvMCBadSurface;
if
(
picture_structure != XVMC_TOP_FIELD &&
picture_structure != XVMC_BOTTOM_FIELD &&
picture_structure != XVMC_FRAME_PICTURE
)
return BadValue;
if (future_surface && !past_surface)
return BadMatch;
vl_ctx = context->privData;
assert(display == vl_ctx->display);
target_vl_surface = target_surface->privData;
past_vl_surface = past_surface ? past_surface->privData : NULL;
future_vl_surface = future_surface ? future_surface->privData : NULL;
assert(vl_ctx == target_vl_surface->context);
assert(!past_vl_surface || vl_ctx == past_vl_surface->context);
assert(!future_vl_surface || vl_ctx == future_vl_surface->context);
assert(macroblocks);
assert(blocks);
assert(macroblocks->context_id == context->context_id);
assert(blocks->context_id == context->context_id);
assert(flags == 0 || flags == XVMC_SECOND_FIELD);
/* TODO: Batch macroblocks by type (I,P,B) */
for (i = first_macroblock; i < first_macroblock + num_macroblocks; ++i)
if (macroblocks->macro_blocks[i].macroblock_type & XVMC_MB_TYPE_INTRA)
vlRenderIMacroBlock
(
PictureToVL(picture_structure),
flags == XVMC_SECOND_FIELD ? VL_FIELD_SECOND : VL_FIELD_FIRST,
macroblocks->macro_blocks[i].x,
macroblocks->macro_blocks[i].y,
macroblocks->macro_blocks[i].coded_block_pattern,
macroblocks->macro_blocks[i].dct_type == XVMC_DCT_TYPE_FIELD ? VL_DCT_FIELD_CODED : VL_DCT_FRAME_CODED,
blocks->blocks + (macroblocks->macro_blocks[i].index * 64),
target_vl_surface
);
else if
(
(macroblocks->macro_blocks[i].macroblock_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD))
== XVMC_MB_TYPE_MOTION_FORWARD
)
{
struct VL_MOTION_VECTOR motion_vector =
{
{
macroblocks->macro_blocks[i].PMV[0][0][0],
macroblocks->macro_blocks[i].PMV[0][0][1],
},
{
macroblocks->macro_blocks[i].PMV[1][0][0],
macroblocks->macro_blocks[i].PMV[1][0][1],
}
};
vlRenderPMacroBlock
(
PictureToVL(picture_structure),
flags == XVMC_SECOND_FIELD ? VL_FIELD_SECOND : VL_FIELD_FIRST,
macroblocks->macro_blocks[i].x,
macroblocks->macro_blocks[i].y,
MotionToVL(macroblocks->macro_blocks[i].motion_type),
&motion_vector,
macroblocks->macro_blocks[i].coded_block_pattern,
macroblocks->macro_blocks[i].dct_type == XVMC_DCT_TYPE_FIELD ? VL_DCT_FIELD_CODED : VL_DCT_FRAME_CODED,
blocks->blocks + (macroblocks->macro_blocks[i].index * 64),
past_vl_surface,
target_vl_surface
);
}
else if
(
(macroblocks->macro_blocks[i].macroblock_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD))
== XVMC_MB_TYPE_MOTION_BACKWARD
)
{
struct VL_MOTION_VECTOR motion_vector =
{
{
macroblocks->macro_blocks[i].PMV[0][1][0],
macroblocks->macro_blocks[i].PMV[0][1][1],
},
{
macroblocks->macro_blocks[i].PMV[1][1][0],
macroblocks->macro_blocks[i].PMV[1][1][1],
}
};
vlRenderPMacroBlock
(
PictureToVL(picture_structure),
flags == XVMC_SECOND_FIELD ? VL_FIELD_SECOND : VL_FIELD_FIRST,
macroblocks->macro_blocks[i].x,
macroblocks->macro_blocks[i].y,
MotionToVL(macroblocks->macro_blocks[i].motion_type),
&motion_vector,
macroblocks->macro_blocks[i].coded_block_pattern,
macroblocks->macro_blocks[i].dct_type == XVMC_DCT_TYPE_FIELD ? VL_DCT_FIELD_CODED : VL_DCT_FRAME_CODED,
blocks->blocks + (macroblocks->macro_blocks[i].index * 64),
future_vl_surface,
target_vl_surface
);
}
else if
(
(macroblocks->macro_blocks[i].macroblock_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD))
== (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)
)
{
struct VL_MOTION_VECTOR motion_vector[2] =
{
{
{
macroblocks->macro_blocks[i].PMV[0][0][0],
macroblocks->macro_blocks[i].PMV[0][0][1],
},
{
macroblocks->macro_blocks[i].PMV[1][0][0],
macroblocks->macro_blocks[i].PMV[1][0][1],
}
},
{
{
macroblocks->macro_blocks[i].PMV[0][1][0],
macroblocks->macro_blocks[i].PMV[0][1][1],
},
{
macroblocks->macro_blocks[i].PMV[1][1][0],
macroblocks->macro_blocks[i].PMV[1][1][1],
}
}
};
vlRenderBMacroBlock
(
PictureToVL(picture_structure),
flags == XVMC_SECOND_FIELD ? VL_FIELD_SECOND : VL_FIELD_FIRST,
macroblocks->macro_blocks[i].x,
macroblocks->macro_blocks[i].y,
MotionToVL(macroblocks->macro_blocks[i].motion_type),
motion_vector,
macroblocks->macro_blocks[i].coded_block_pattern,
macroblocks->macro_blocks[i].dct_type == XVMC_DCT_TYPE_FIELD ? VL_DCT_FIELD_CODED : VL_DCT_FRAME_CODED,
blocks->blocks + (macroblocks->macro_blocks[i].index * 64),
past_vl_surface,
future_vl_surface,
target_vl_surface
);
}
else
fprintf(stderr, "Unrecognized macroblock\n");
return Success;
}
Status XvMCFlushSurface(Display *display, XvMCSurface *surface)
{
/* TODO: Check display & surface match */
return BadImplementation;
}
Status XvMCSyncSurface(Display *display, XvMCSurface *surface)
{
/* TODO: Check display & surface match */
return BadImplementation;
}
Status XvMCPutSurface
(
Display *display,
XvMCSurface *surface,
Drawable drawable,
short srcx,
short srcy,
unsigned short srcw,
unsigned short srch,
short destx,
short desty,
unsigned short destw,
unsigned short desth,
int flags
)
{
Window root;
int x, y;
unsigned int width, height;
unsigned int border_width;
unsigned int depth;
struct VL_SURFACE *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
if (XGetGeometry(display, drawable, &root, &x, &y, &width, &height, &border_width, &depth) == BadDrawable)
return BadDrawable;
assert(flags == XVMC_TOP_FIELD || flags == XVMC_BOTTOM_FIELD || flags == XVMC_FRAME_PICTURE);
/* TODO: Correct for negative srcx,srcy & destx,desty by clipping */
assert(srcx + srcw - 1 < surface->width);
assert(srcy + srch - 1 < surface->height);
assert(destx + destw - 1 < width);
assert(desty + desth - 1 < height);
vl_sfc = surface->privData;
vlPutSurface(vl_sfc, drawable, srcx, srcy, srcw, srch, destx, desty, destw, desth, PictureToVL(flags));
return Success;
}
Status XvMCGetSurfaceStatus(Display *display, XvMCSurface *surface, int *status)
{
struct VL_CONTEXT *vl_ctx;
struct VL_SURFACE *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
assert(status);
vl_sfc = surface->privData;
vl_ctx = vl_sfc->context;
assert(display == vl_ctx->display);
/* TODO */
*status = 0;
return BadImplementation;
}
Status XvMCDestroySurface(Display *display, XvMCSurface *surface)
{
struct VL_CONTEXT *vl_ctx;
struct VL_SURFACE *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
vl_sfc = surface->privData;
vl_ctx = vl_sfc->context;
assert(display == vl_ctx->display);
vlDestroySurface(vl_sfc);
return Success;
}
Status XvMCHideSurface(Display *display, XvMCSurface *surface)
{
struct VL_CONTEXT *vl_ctx;
struct VL_SURFACE *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
vl_sfc = surface->privData;
vl_ctx = vl_sfc->context;
assert(display == vl_ctx->display);
/* No op, only for overlaid rendering */
return Success;
}
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