1 files changed, 355 insertions, 0 deletions
diff --git a/src/xvmc/surface.c b/src/xvmc/surface.c
new file mode 100644
index 0000000000..7c5f45bd34
--- /dev/null
+++ b/src/xvmc/surface.c
@@ -0,0 +1,355 @@
+#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, int xvmc_dct_type)
+{
+	switch (xvmc_motion_type)
+	{
+		case XVMC_PREDICTION_FRAME:
+			return xvmc_dct_type == XVMC_DCT_TYPE_FIELD ? vlMotionType16x8 : 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))));
+
+	if (vlCreateSurface(vlContextGetScreen(vl_ctx),
+	                    context->width, context->height,
+	                    vlGetPictureFormat(vl_ctx),
+	                    &vl_sfc))
+	{
+		return BadAlloc;
+	}
+
+	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, macroblocks->macro_blocks[j].dct_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);
+	/* XXX: Some apps (mplayer) hit these asserts because they call
+	 * this function after the window has been resized by the WM
+	 * but before they've handled the corresponding XEvent and
+	 * know about the new dimensions. The output will be clipped
+	 * for a few frames until the app updates destw and desth.
+	 */
+	/*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;
+}