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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.
*/
#define _GNU_SOURCE 1
#include "sysdeps.h"
#include "va.h"
#include "va_backend.h"
#include "va_backend_tpi.h"
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#include <unistd.h>
#define CTX(dpy) (((VADisplayContextP)dpy)->pDriverContext)
#define CHECK_DISPLAY(dpy) if( !vaDisplayIsValid(dpy) ) { return VA_STATUS_ERROR_INVALID_DISPLAY; }
/* Wrap a CI (camera imaging) frame as a VA surface to share captured video between camear
* and VA encode. With frame_id, VA driver need to call CI interfaces to get the information
* of the frame, and to determine if the frame can be wrapped as a VA surface
*
* Application should make sure the frame is idle before the frame is passed into VA stack
* and also a vaSyncSurface should be called before application tries to access the frame
* from CI stack
*/
VAStatus vaCreateSurfaceFromCIFrame (
VADisplay dpy,
unsigned long frame_id,
VASurfaceID *surface /* out */
)
{
VADriverContextP ctx;
struct VADriverVTableTPI *tpi;
CHECK_DISPLAY(dpy);
ctx = CTX(dpy);
tpi = ( struct VADriverVTableTPI *)ctx->vtable_tpi;
if (tpi && tpi->vaCreateSurfaceFromCIFrame) {
return tpi->vaCreateSurfaceFromCIFrame( ctx, frame_id, surface );
} else
return VA_STATUS_ERROR_UNIMPLEMENTED;
}
/* Wrap a V4L2 buffer as a VA surface, so that V4L2 camera, VA encode
* can share the data without copy
* The VA driver should query the camera device from v4l2_fd to see
* if camera device memory/buffer can be wrapped into a VA surface
* Buffer information is passed in by v4l2_fmt and v4l2_buf structure,
* VA driver also needs do further check if the buffer can meet encode
* hardware requirement, such as dimension, fourcc, stride, etc
*
* Application should make sure the buffer is idle before the frame into VA stack
* and also a vaSyncSurface should be called before application tries to access the frame
* from V4L2 stack
*/
VAStatus vaCreateSurfaceFromV4L2Buf(
VADisplay dpy,
int v4l2_fd, /* file descriptor of V4L2 device */
struct v4l2_format *v4l2_fmt, /* format of V4L2 */
struct v4l2_buffer *v4l2_buf, /* V4L2 buffer */
VASurfaceID *surface /* out */
)
{
VADriverContextP ctx;
struct VADriverVTableTPI *tpi;
CHECK_DISPLAY(dpy);
ctx = CTX(dpy);
tpi = ( struct VADriverVTableTPI *)ctx->vtable_tpi;
if (tpi && tpi->vaCreateSurfaceFromV4L2Buf) {
return tpi->vaCreateSurfaceFromV4L2Buf( ctx, v4l2_fd, v4l2_fmt, v4l2_buf, surface );
} else
return VA_STATUS_ERROR_UNIMPLEMENTED;
}
/*
* The surfaces could be shared and accessed with extern devices
* which has special requirements, e.g. stride alignment
* This API is used to force libVA video surfaces are allocated
* according to these external requirements
* Special API for V4L2 user pointer support
*/
VAStatus vaCreateSurfacesForUserPtr(
VADisplay dpy,
int width,
int height,
int format,
int num_surfaces,
VASurfaceID *surfaces, /* out */
unsigned size, /* total buffer size need to be allocated */
unsigned int fourcc, /* expected fourcc */
unsigned int luma_stride, /* luma stride, could be width aligned with a special value */
unsigned int chroma_u_stride, /* chroma stride */
unsigned int chroma_v_stride,
unsigned int luma_offset, /* could be 0 */
unsigned int chroma_u_offset, /* UV offset from the beginning of the memory */
unsigned int chroma_v_offset
)
{
VADriverContextP ctx;
struct VADriverVTableTPI *tpi;
CHECK_DISPLAY(dpy);
ctx = CTX(dpy);
tpi = (struct VADriverVTableTPI *)ctx->vtable_tpi;
if (tpi && tpi->vaCreateSurfacesForUserPtr) {
return tpi->vaCreateSurfacesForUserPtr( ctx, width, height, format, num_surfaces,
surfaces,size, fourcc, luma_stride, chroma_u_stride,
chroma_v_stride, luma_offset, chroma_u_offset, chroma_v_offset );
} else
return VA_STATUS_ERROR_UNIMPLEMENTED;
}
/*
* Create surface from the Kernel buffer
*/
VAStatus vaCreateSurfaceFromKBuf(
VADisplay dpy,
int width,
int height,
int format,
VASurfaceID *surface, /* out */
unsigned int kbuf_handle, /* kernel buffer handle*/
unsigned size, /* kernel buffer size */
unsigned int kBuf_fourcc, /* expected fourcc */
unsigned int luma_stride, /* luma stride, could be width aligned with a special value */
unsigned int chroma_u_stride, /* chroma stride */
unsigned int chroma_v_stride,
unsigned int luma_offset, /* could be 0 */
unsigned int chroma_u_offset, /* UV offset from the beginning of the memory */
unsigned int chroma_v_offset
)
{
VADriverContextP ctx;
struct VADriverVTableTPI *tpi;
CHECK_DISPLAY(dpy);
ctx = CTX(dpy);
tpi = (struct VADriverVTableTPI *)ctx->vtable_tpi;
if (tpi && tpi->vaCreateSurfaceFromKBuf) {
return tpi->vaCreateSurfaceFromKBuf( ctx, width, height, format, surface, kbuf_handle,
size, kBuf_fourcc, luma_stride, chroma_u_stride,
chroma_v_stride, luma_offset, chroma_u_offset, chroma_v_offset );
} else
return VA_STATUS_ERROR_UNIMPLEMENTED;
}
VAStatus vaPutSurfaceBuf (
VADisplay dpy,
VASurfaceID surface,
unsigned char* data,
int* data_len,
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 */
)
{
VADriverContextP ctx;
struct VADriverVTableTPI *tpi;
CHECK_DISPLAY(dpy);
ctx = CTX(dpy);
tpi = ( struct VADriverVTableTPI *)ctx->vtable_tpi;
if (tpi && tpi->vaPutSurfaceBuf) {
return tpi->vaPutSurfaceBuf( ctx, surface, data, data_len, srcx, srcy, srcw, srch,
destx, desty, destw, desth, cliprects, number_cliprects, flags );
} else
return VA_STATUS_ERROR_UNIMPLEMENTED;
}
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