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/*
 * Copyright (c) 2007 Intel Corporation. All Rights Reserved.
 *
 * 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 PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.
 */

/*
 * Video Decode Acceleration -Backend API
 */

#ifndef _VA_BACKEND_H_
#define _VA_BACKEND_H_

#ifdef IN_LIBVA
#include "va.h"
#include "X11/va_x11.h"
#else
#include <va/va.h>
#include <va/va_x11.h>
#endif

#include <stdlib.h>


typedef struct VADriverContext *VADriverContextP;
typedef struct VADisplayContext *VADisplayContextP;

struct VADriverVTable
{
	VAStatus (*vaTerminate) ( VADriverContextP ctx );

	VAStatus (*vaQueryConfigProfiles) (
		VADriverContextP ctx,
		VAProfile *profile_list,	/* out */
		int *num_profiles			/* out */
	);

	VAStatus (*vaQueryConfigEntrypoints) (
		VADriverContextP ctx,
		VAProfile profile,
		VAEntrypoint  *entrypoint_list,	/* out */
		int *num_entrypoints			/* out */
	);

	VAStatus (*vaGetConfigAttributes) (
		VADriverContextP ctx,
		VAProfile profile,
		VAEntrypoint entrypoint,
		VAConfigAttrib *attrib_list,	/* in/out */
		int num_attribs
	);

	VAStatus (*vaCreateConfig) (
		VADriverContextP ctx,
		VAProfile profile, 
		VAEntrypoint entrypoint, 
		VAConfigAttrib *attrib_list,
		int num_attribs,
		VAConfigID *config_id		/* out */
	);

	VAStatus (*vaDestroyConfig) (
		VADriverContextP ctx,
		VAConfigID config_id
	);

	VAStatus (*vaQueryConfigAttributes) (
		VADriverContextP ctx,
		VAConfigID config_id, 
		VAProfile *profile,		/* out */
		VAEntrypoint *entrypoint, 	/* out */
		VAConfigAttrib *attrib_list,	/* out */
		int *num_attribs		/* out */
	);

	VAStatus (*vaCreateSurfaces) (
		VADriverContextP ctx,
		int width,
		int height,
		int format,
		int num_surfaces,
		VASurfaceID *surfaces		/* out */
	);

	VAStatus (*vaDestroySurfaces) (
		VADriverContextP ctx,
		VASurfaceID *surface_list,
		int num_surfaces
	);

	VAStatus (*vaCreateContext) (
		VADriverContextP ctx,
		VAConfigID config_id,
		int picture_width,
		int picture_height,
		int flag,
		VASurfaceID *render_targets,
		int num_render_targets,
		VAContextID *context		/* out */
	);

	VAStatus (*vaDestroyContext) (
		VADriverContextP ctx,
		VAContextID context
	);

	VAStatus (*vaCreateBuffer) (
		VADriverContextP ctx,
		VAContextID context,		/* in */
		VABufferType type,		/* in */
		unsigned int size,		/* in */
		unsigned int num_elements,	/* in */
		void *data,			/* in */
		VABufferID *buf_id		/* out */
	);

	VAStatus (*vaBufferSetNumElements) (
		VADriverContextP ctx,
		VABufferID buf_id,	/* in */
		unsigned int num_elements	/* in */
	);

	VAStatus (*vaMapBuffer) (
		VADriverContextP ctx,
		VABufferID buf_id,	/* in */
		void **pbuf         /* out */
	);

	VAStatus (*vaUnmapBuffer) (
		VADriverContextP ctx,
		VABufferID buf_id	/* in */
	);

	VAStatus (*vaDestroyBuffer) (
		VADriverContextP ctx,
		VABufferID buffer_id
	);

	VAStatus (*vaBeginPicture) (
		VADriverContextP ctx,
		VAContextID context,
		VASurfaceID render_target
	);

	VAStatus (*vaRenderPicture) (
		VADriverContextP ctx,
		VAContextID context,
		VABufferID *buffers,
		int num_buffers
	);

	VAStatus (*vaEndPicture) (
		VADriverContextP ctx,
		VAContextID context
	);

	VAStatus (*vaSyncSurface) (
		VADriverContextP ctx,
		VAContextID context,
		VASurfaceID render_target
	);

	VAStatus (*vaQuerySurfaceStatus) (
		VADriverContextP ctx,
		VASurfaceID render_target,
		VASurfaceStatus *status	/* out */
	);

	VAStatus (*vaPutSurface) (
    		VADriverContextP ctx,
		VASurfaceID surface,
		Drawable draw, /* X Drawable */
		short srcx,
		short srcy,
		unsigned short srcw,
		unsigned short srch,
		short destx,
		short desty,
		unsigned short destw,
		unsigned short desth,
		VARectangle *cliprects, /* client supplied clip list */
		unsigned int number_cliprects, /* number of clip rects in the clip list */
		unsigned int flags /* de-interlacing flags */
	);

	VAStatus (*vaQueryImageFormats) (
		VADriverContextP ctx,
		VAImageFormat *format_list,        /* out */
		int *num_formats           /* out */
	);

	VAStatus (*vaCreateImage) (
		VADriverContextP ctx,
		VAImageFormat *format,
		int width,
		int height,
		VAImage *image     /* out */
	);

	VAStatus (*vaDeriveImage) (
		VADriverContextP ctx,
		VASurfaceID surface,
		VAImage *image     /* out */
	);

	VAStatus (*vaDestroyImage) (
		VADriverContextP ctx,
		VAImageID image
	);
	
	VAStatus (*vaSetImagePalette) (
	        VADriverContextP ctx,
	        VAImageID image,
	        /*
                 * pointer to an array holding the palette data.  The size of the array is
                 * num_palette_entries * entry_bytes in size.  The order of the components
                 * in the palette is described by the component_order in VAImage struct
                 */
                unsigned char *palette
	);
	
	VAStatus (*vaGetImage) (
		VADriverContextP ctx,
		VASurfaceID surface,
		int x,     /* coordinates of the upper left source pixel */
		int y,
		unsigned int width, /* width and height of the region */
		unsigned int height,
		VAImageID image
	);

	VAStatus (*vaPutImage) (
		VADriverContextP ctx,
		VASurfaceID surface,
		VAImageID image,
		int src_x,
		int src_y,
		unsigned int width,
		unsigned int height,
		int dest_x,
		int dest_y 
	);

	VAStatus (*vaPutImage2) (
		VADriverContextP ctx,
		VASurfaceID surface,
		VAImageID image,
		int src_x,
		int src_y,
		unsigned int src_width,
		unsigned int src_height,
		int dest_x,
		int dest_y,
		unsigned int dest_width,
		unsigned int dest_height
	);

	VAStatus (*vaQuerySubpictureFormats) (
		VADriverContextP ctx,
		VAImageFormat *format_list,        /* out */
		unsigned int *flags,       /* out */
		unsigned int *num_formats  /* out */
	);

	VAStatus (*vaCreateSubpicture) (
		VADriverContextP ctx,
		VAImageID image,
		VASubpictureID *subpicture   /* out */
	);

	VAStatus (*vaDestroySubpicture) (
		VADriverContextP ctx,
		VASubpictureID subpicture
	);

        VAStatus (*vaSetSubpictureImage) (
                VADriverContextP ctx,
                VASubpictureID subpicture,
                VAImageID image
        );
        
	VAStatus (*vaSetSubpictureChromakey) (
		VADriverContextP ctx,
		VASubpictureID subpicture,
		unsigned int chromakey_min,
		unsigned int chromakey_max,
		unsigned int chromakey_mask
	);

	VAStatus (*vaSetSubpictureGlobalAlpha) (
		VADriverContextP ctx,
		VASubpictureID subpicture,
		float global_alpha 
	);

	VAStatus (*vaAssociateSubpicture) (
		VADriverContextP ctx,
		VASubpictureID subpicture,
		VASurfaceID *target_surfaces,
		int num_surfaces,
		short src_x, /* upper left offset in subpicture */
		short src_y,
		short dest_x, /* upper left offset in surface */
		short dest_y,
		unsigned short width,
		unsigned short height,
		/*
		 * whether to enable chroma-keying or global-alpha
		 * see VA_SUBPICTURE_XXX values
		 */
		unsigned int flags
	);

	VAStatus (*vaAssociateSubpicture2) (
		VADriverContextP ctx,
		VASubpictureID subpicture,
		VASurfaceID *target_surfaces,
		int num_surfaces,
		short src_x, /* upper left offset in subpicture */
		short src_y,
		unsigned short src_width,
		unsigned short src_height,
		short dest_x, /* upper left offset in surface */
		short dest_y,
		unsigned short dest_width,
		unsigned short dest_height,
		/*
		 * whether to enable chroma-keying or global-alpha
		 * see VA_SUBPICTURE_XXX values
		 */
		unsigned int flags
	);

	VAStatus (*vaDeassociateSubpicture) (
		VADriverContextP ctx,
		VASubpictureID subpicture,
		VASurfaceID *target_surfaces,
		int num_surfaces
	);

	VAStatus (*vaQueryDisplayAttributes) (
		VADriverContextP ctx,
		VADisplayAttribute *attr_list,	/* out */
		int *num_attributes		/* out */
        );

	VAStatus (*vaGetDisplayAttributes) (
		VADriverContextP ctx,
		VADisplayAttribute *attr_list,	/* in/out */
		int num_attributes
        );
        
        VAStatus (*vaSetDisplayAttributes) (
		VADriverContextP ctx,
                VADisplayAttribute *attr_list,
                int num_attributes
        );

        /* device specific */
	VAStatus (*vaCreateSurfaceFromCIFrame) (
		VADriverContextP ctx,
		unsigned long frame_id,
		VASurfaceID *surface		/* out */
	);
    
    
        VAStatus (*vaCreateSurfaceFromMrstV4L2Buf) (
		VADriverContextP ctx,
                unsigned int width,
                unsigned int height,
                unsigned int size,
                unsigned int fourcc,
                unsigned int luma_stride,
                unsigned int chroma_u_stride,
                unsigned int chroma_v_stride,
                unsigned int luma_offset,
                unsigned int chroma_u_offset,
                unsigned int chroma_v_offset,
                VASurfaceID *surface	/* out */
        );
    
        VAStatus (*vaCopySurfaceToBuffer) (
		VADriverContextP ctx,
                VASurfaceID surface,
                unsigned int *fourcc, /* out  for follow argument */
                unsigned int *luma_stride,
                unsigned int *chroma_u_stride,
                unsigned int *chroma_v_stride,
                unsigned int *luma_offset,
                unsigned int *chroma_u_offset,
                unsigned int *chroma_v_offset,
                void **buffer
        );
};

struct VADriverContext
{
    void *old_pNext;			/* preserved for binary compatibility */

    void *pDriverData;
    struct VADriverVTable vtable;

    Display *x11_dpy;
    int x11_screen;
    int dri2;
    int version_major;
    int version_minor;
    int max_profiles;
    int max_entrypoints;
    int max_attributes;
    int max_image_formats;
    int max_subpic_formats;
    int max_display_attributes;
    const char *str_vendor;

    void *handle;			/* dlopen handle */
};

struct VADisplayContext
{
    VADisplayContextP pNext;
    VADriverContextP pDriverContext;

    int (*vaIsValid) (
	VADisplayContextP ctx
    );

    void (*vaDestroy) (
	VADisplayContextP ctx
    );

    VAStatus (*vaGetDriverName) (
	VADisplayContextP ctx,
	char **driver_name
    );
};

typedef VAStatus (*VADriverInit) (
    VADriverContextP driver_context
);


#endif /* _VA_BACKEND_H_ */