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/*
* Copyright 2006-2009 Luc Verhaegen <libv@skynet.be>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sub license,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*
* Unichrome MPEG acceleration, driver side support.
*
*/
#ifndef HAVE_VIA_MPEG_H
#define HAVE_VIA_MPEG_H 1
#define FOURCC_MPEG (('G' << 24) | ('E' << 16) | ('P' << 8) | 'M')
/* xine seems to need at least 8, engine can only handle 4,
* so we keep the others in limbo in the FB. */
#define VIAMPEG_BUFFERS_MAX 16
struct ViaMpeg {
int scrnIndex;
XID ContextID; /* The XvMC way. */
CARD16 Width;
CARD16 Height;
CARD16 MBWidth;
CARD16 MBHeight;
XID CurrentID;
XID FlippingID;
XID FRefID;
XID BRefID;
struct {
XID ID;
struct ViaMem *Mem;
} Buffers[VIAMPEG_BUFFERS_MAX];
/* Provide direct register access */
struct ViaMpegRegs *Regs;
};
/*
*
*/
struct ViaSubPicture {
int scrnIndex;
CARD16 Width;
CARD16 Height;
struct ViaMem *Mem;
struct ViaSubPictureRegs *Regs;
};
/* from via_mpeg.c, to allow via_video.c to sync this engine */
void ViaMpegEngineIdle(struct ViaMpeg *Mpeg);
/* from via_video.c, to allow via_mpeg.c to sync this engine */
void ViaHQVIdle(struct ViaSwov *Swov);
/* from via_video.c - to copy over the SubPicture */
Bool ViaSwovCopy(ScrnInfoPtr pScrn, struct ViaMem *Mem, unsigned char *Buffer);
/* Function prototypes for via_video.c */
void ViaSubPictureInit(ScrnInfoPtr pScrn);
void ViaSubPictureStop(ScrnInfoPtr pScrn);
void ViaSubPictureDestroy(ScrnInfoPtr pScrn);
void ViaMpegInit(ScrnInfoPtr pScrn);
void ViaMpegStop(ScrnInfoPtr pScrn);
void ViaMpegDestroy(ScrnInfoPtr pScrn);
Bool ViaMpegBufferIDVerify(struct ViaMpeg *Mpeg, XID BufferID,
int Width, int Height);
unsigned long ViaMpegBufferFlip(struct ViaMpeg *Mpeg, XID BufferID);
/* prototypes for the X extension. */
Bool ViaMpegEngineInit(struct ViaMpeg *Mpeg, CARD16 Width, CARD16 Height);
Bool ViaMpegBufferGrab(struct ViaMpeg *Mpeg, XID BufferID);
void ViaMpegBufferRelease(struct ViaMpeg *Mpeg, XID BufferID);
int ViaMpegSliceInit(struct ViaMpeg *Mpeg, XID BufferID, XID FRefID, XID BRefID,
CARD8 F_MV_Range, CARD8 B_MV_Range, CARD8 PictureStructure,
CARD8 PictureCoding, CARD8 IntraDCPrecision, CARD8 Flags);
int ViaMpegSlicePut(struct ViaMpeg *Mpeg, XID BufferID, CARD8 SliceCode,
CARD32 SliceLength, CARD8 *Slice);
#endif /* HAVE_VIA_MPEG_H */
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