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#include <assert.h>
#include <X11/Xlib.h>
#include <X11/extensions/XvMC.h>
#include <vl_display.h>
#include <vl_screen.h>
#include <vl_context.h>
#include <vl_surface.h>
#include <vl_types.h>
static enum vlMacroBlockType TypeToVL(int xvmc_mb_type)
{
if (xvmc_mb_type & XVMC_MB_TYPE_INTRA)
return vlMacroBlockTypeIntra;
if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == XVMC_MB_TYPE_MOTION_FORWARD)
return vlMacroBlockTypeFwdPredicted;
if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == XVMC_MB_TYPE_MOTION_BACKWARD)
return vlMacroBlockTypeBkwdPredicted;
if ((xvmc_mb_type & (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD)) == (XVMC_MB_TYPE_MOTION_FORWARD | XVMC_MB_TYPE_MOTION_BACKWARD))
return vlMacroBlockTypeBiPredicted;
assert(0);
return -1;
}
static enum vlPictureType PictureToVL(int xvmc_pic)
{
switch (xvmc_pic)
{
case XVMC_TOP_FIELD:
return vlPictureTypeTopField;
case XVMC_BOTTOM_FIELD:
return vlPictureTypeBottomField;
case XVMC_FRAME_PICTURE:
return vlPictureTypeFrame;
default:
assert(0);
}
return -1;
}
static enum vlMotionType MotionToVL(int xvmc_motion_type)
{
switch (xvmc_motion_type)
{
case XVMC_PREDICTION_FRAME:
return vlMotionTypeFrame;
case XVMC_PREDICTION_FIELD:
return vlMotionTypeField;
case XVMC_PREDICTION_DUAL_PRIME:
return vlMotionTypeDualPrime;
default:
assert(0);
}
return -1;
}
Status XvMCCreateSurface(Display *display, XvMCContext *context, XvMCSurface *surface)
{
struct vlContext *vl_ctx;
struct vlSurface *vl_sfc;
assert(display);
if (!context)
return XvMCBadContext;
if (!surface)
return XvMCBadSurface;
vl_ctx = context->privData;
assert(display == vlGetNativeDisplay(vlGetDisplay(vlContextGetScreen(vl_ctx))));
vlCreateSurface
(
vlContextGetScreen(vl_ctx),
context->width,
context->height,
vlGetPictureFormat(vl_ctx),
&vl_sfc
);
vlBindToContext(vl_sfc, vl_ctx);
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 vlContext *vl_ctx;
struct vlSurface *target_vl_surface;
struct vlSurface *past_vl_surface;
struct vlSurface *future_vl_surface;
struct vlMpeg2MacroBlockBatch batch;
struct vlMpeg2MacroBlock vl_macroblocks[num_macroblocks];
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 == vlGetNativeDisplay(vlGetDisplay(vlContextGetScreen(vl_ctx))));
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(context->context_id == target_surface->context_id);
assert(!past_surface || context->context_id == past_surface->context_id);
assert(!future_surface || context->context_id == future_surface->context_id);
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);
batch.past_surface = past_vl_surface;
batch.future_surface = future_vl_surface;
batch.picture_type = PictureToVL(picture_structure);
batch.field_order = flags & XVMC_SECOND_FIELD ? vlFieldOrderSecond : vlFieldOrderFirst;
batch.num_macroblocks = num_macroblocks;
batch.macroblocks = vl_macroblocks;
for (i = 0; i < num_macroblocks; ++i)
{
unsigned int j = first_macroblock + i;
unsigned int k, l, m;
batch.macroblocks[i].mbx = macroblocks->macro_blocks[j].x;
batch.macroblocks[i].mby = macroblocks->macro_blocks[j].y;
batch.macroblocks[i].mb_type = TypeToVL(macroblocks->macro_blocks[j].macroblock_type);
if (batch.macroblocks[i].mb_type != vlMacroBlockTypeIntra)
batch.macroblocks[i].mo_type = MotionToVL(macroblocks->macro_blocks[j].motion_type);
batch.macroblocks[i].dct_type = macroblocks->macro_blocks[j].dct_type & XVMC_DCT_TYPE_FIELD ? vlDCTTypeFieldCoded : vlDCTTypeFrameCoded;
for (k = 0; k < 2; ++k)
for (l = 0; l < 2; ++l)
for (m = 0; m < 2; ++m)
batch.macroblocks[i].PMV[k][l][m] = macroblocks->macro_blocks[j].PMV[k][l][m];
batch.macroblocks[i].cbp = macroblocks->macro_blocks[j].coded_block_pattern;
batch.macroblocks[i].blocks = blocks->blocks + (macroblocks->macro_blocks[j].index * 64);
}
vlRenderMacroBlocksMpeg2(&batch, target_vl_surface);
return Success;
}
Status XvMCFlushSurface(Display *display, XvMCSurface *surface)
{
struct vlSurface *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
vl_sfc = surface->privData;
assert(display == vlGetNativeDisplay(vlGetDisplay(vlSurfaceGetScreen(vl_sfc))));
vlSurfaceFlush(vl_sfc);
return Success;
}
Status XvMCSyncSurface(Display *display, XvMCSurface *surface)
{
struct vlSurface *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
vl_sfc = surface->privData;
assert(display == vlGetNativeDisplay(vlGetDisplay(vlSurfaceGetScreen(vl_sfc))));
vlSurfaceSync(vl_sfc);
return Success;
}
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 vlSurface *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;
vlPutPicture(vl_sfc, drawable, srcx, srcy, srcw, srch, destx, desty, destw, desth, width, height, PictureToVL(flags));
return Success;
}
Status XvMCGetSurfaceStatus(Display *display, XvMCSurface *surface, int *status)
{
struct vlSurface *vl_sfc;
enum vlResourceStatus res_status;
assert(display);
if (!surface)
return XvMCBadSurface;
assert(status);
vl_sfc = surface->privData;
assert(display == vlGetNativeDisplay(vlGetDisplay(vlSurfaceGetScreen(vl_sfc))));
vlSurfaceGetStatus(vl_sfc, &res_status);
switch (res_status)
{
case vlResourceStatusFree:
{
*status = 0;
break;
}
case vlResourceStatusRendering:
{
*status = XVMC_RENDERING;
break;
}
case vlResourceStatusDisplaying:
{
*status = XVMC_DISPLAYING;
break;
}
default:
assert(0);
}
return Success;
}
Status XvMCDestroySurface(Display *display, XvMCSurface *surface)
{
struct vlSurface *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
vl_sfc = surface->privData;
assert(display == vlGetNativeDisplay(vlGetDisplay(vlSurfaceGetScreen(vl_sfc))));
vlDestroySurface(vl_sfc);
return Success;
}
Status XvMCHideSurface(Display *display, XvMCSurface *surface)
{
struct vlSurface *vl_sfc;
assert(display);
if (!surface)
return XvMCBadSurface;
vl_sfc = surface->privData;
assert(display == vlGetNativeDisplay(vlGetDisplay(vlSurfaceGetScreen(vl_sfc))));
/* No op, only for overlaid rendering */
return Success;
}
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