Add libva to chromium third_party.

third_party/libva/va/va_tpi.c

+/*
+ * 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;
+}