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28 #include "va_backend.h"
29 #include "va_backend_tpi.h"
39 #define CTX(dpy) (((VADisplayContextP)dpy)->pDriverContext)
40 #define CHECK_DISPLAY(dpy) if( !vaDisplayIsValid(dpy) ) { return VA_STATUS_ERROR_INVALID_DISPLAY; }
42 /* Wrap a CI (camera imaging) frame as a VA surface to share captured video between camear
43 * and VA encode. With frame_id, VA driver need to call CI interfaces to get the information
44 * of the frame, and to determine if the frame can be wrapped as a VA surface
46 * Application should make sure the frame is idle before the frame is passed into VA stack
47 * and also a vaSyncSurface should be called before application tries to access the frame
50 VAStatus vaCreateSurfaceFromCIFrame (
52 unsigned long frame_id,
53 VASurfaceID *surface /* out */
57 struct VADriverVTableTPI *tpi;
61 tpi = ( struct VADriverVTableTPI *)ctx->vtable_tpi;
62 if (tpi && tpi->vaCreateSurfaceFromCIFrame) {
63 return tpi->vaCreateSurfaceFromCIFrame( ctx, frame_id, surface );
65 return VA_STATUS_ERROR_UNIMPLEMENTED;
69 /* Wrap a V4L2 buffer as a VA surface, so that V4L2 camera, VA encode
70 * can share the data without copy
71 * The VA driver should query the camera device from v4l2_fd to see
72 * if camera device memory/buffer can be wrapped into a VA surface
73 * Buffer information is passed in by v4l2_fmt and v4l2_buf structure,
74 * VA driver also needs do further check if the buffer can meet encode
75 * hardware requirement, such as dimension, fourcc, stride, etc
77 * Application should make sure the buffer is idle before the frame into VA stack
78 * and also a vaSyncSurface should be called before application tries to access the frame
81 VAStatus vaCreateSurfaceFromV4L2Buf(
83 int v4l2_fd, /* file descriptor of V4L2 device */
84 struct v4l2_format *v4l2_fmt, /* format of V4L2 */
85 struct v4l2_buffer *v4l2_buf, /* V4L2 buffer */
86 VASurfaceID *surface /* out */
90 struct VADriverVTableTPI *tpi;
94 tpi = ( struct VADriverVTableTPI *)ctx->vtable_tpi;
95 if (tpi && tpi->vaCreateSurfaceFromV4L2Buf) {
96 return tpi->vaCreateSurfaceFromV4L2Buf( ctx, v4l2_fd, v4l2_fmt, v4l2_buf, surface );
98 return VA_STATUS_ERROR_UNIMPLEMENTED;
103 * The surfaces could be shared and accessed with extern devices
104 * which has special requirements, e.g. stride alignment
105 * This API is used to force libVA video surfaces are allocated
106 * according to these external requirements
107 * Special API for V4L2 user pointer support
109 VAStatus vaCreateSurfacesForUserPtr(
115 VASurfaceID *surfaces, /* out */
116 unsigned size, /* total buffer size need to be allocated */
117 unsigned int fourcc, /* expected fourcc */
118 unsigned int luma_stride, /* luma stride, could be width aligned with a special value */
119 unsigned int chroma_u_stride, /* chroma stride */
120 unsigned int chroma_v_stride,
121 unsigned int luma_offset, /* could be 0 */
122 unsigned int chroma_u_offset, /* UV offset from the beginning of the memory */
123 unsigned int chroma_v_offset
126 VADriverContextP ctx;
127 struct VADriverVTableTPI *tpi;
131 tpi = (struct VADriverVTableTPI *)ctx->vtable_tpi;
132 if (tpi && tpi->vaCreateSurfacesForUserPtr) {
133 return tpi->vaCreateSurfacesForUserPtr( ctx, width, height, format, num_surfaces,
134 surfaces,size, fourcc, luma_stride, chroma_u_stride,
135 chroma_v_stride, luma_offset, chroma_u_offset, chroma_v_offset );
137 return VA_STATUS_ERROR_UNIMPLEMENTED;
141 * Create surface from the Kernel buffer
143 VAStatus vaCreateSurfaceFromKBuf(
148 VASurfaceID *surface, /* out */
149 unsigned int kbuf_handle, /* kernel buffer handle*/
150 unsigned size, /* kernel buffer size */
151 unsigned int kBuf_fourcc, /* expected fourcc */
152 unsigned int luma_stride, /* luma stride, could be width aligned with a special value */
153 unsigned int chroma_u_stride, /* chroma stride */
154 unsigned int chroma_v_stride,
155 unsigned int luma_offset, /* could be 0 */
156 unsigned int chroma_u_offset, /* UV offset from the beginning of the memory */
157 unsigned int chroma_v_offset
160 VADriverContextP ctx;
161 struct VADriverVTableTPI *tpi;
165 tpi = (struct VADriverVTableTPI *)ctx->vtable_tpi;
166 if (tpi && tpi->vaCreateSurfaceFromKBuf) {
167 return tpi->vaCreateSurfaceFromKBuf( ctx, width, height, format, surface, kbuf_handle,
168 size, kBuf_fourcc, luma_stride, chroma_u_stride,
169 chroma_v_stride, luma_offset, chroma_u_offset, chroma_v_offset );
171 return VA_STATUS_ERROR_UNIMPLEMENTED;
175 VAStatus vaPutSurfaceBuf (
186 unsigned short destw,
187 unsigned short desth,
188 VARectangle *cliprects, /* client supplied clip list */
189 unsigned int number_cliprects, /* number of clip rects in the clip list */
190 unsigned int flags /* de-interlacing flags */
193 VADriverContextP ctx;
194 struct VADriverVTableTPI *tpi;
198 tpi = ( struct VADriverVTableTPI *)ctx->vtable_tpi;
199 if (tpi && tpi->vaPutSurfaceBuf) {
200 return tpi->vaPutSurfaceBuf( ctx, surface, data, data_len, srcx, srcy, srcw, srch,
201 destx, desty, destw, desth, cliprects, number_cliprects, flags );
203 return VA_STATUS_ERROR_UNIMPLEMENTED;