Add libva, a library for video accelerated video processing.

third_party/libva/va/va_dricommon.h

Index: third_party/libva/va/va_dricommon.h
diff --git a/third_party/libva/va/va_dricommon.h b/third_party/libva/va/va_dricommon.h
new file mode 100644
index 0000000000000000000000000000000000000000..357cc8eb65408ef3d514a8310a1662905cf7d4d1
--- /dev/null
+++ b/third_party/libva/va/va_dricommon.h
@@ -0,0 +1,79 @@
+#ifndef _VA_DRICOMMON_H_
+#define _VA_DRICOMMON_H_
+
+#ifndef ANDROID
+#include <X11/Xlib.h>
+#include <xf86drm.h>
+#include <drm.h>
+#include <drm_sarea.h>
+#endif
+
+#include <va/va_backend.h>
+
+#ifdef ANDROID
+#define XID unsigned int
+#define Bool int
+#endif
+
+enum
+{
+    VA_NONE = 0,
+    VA_DRI1 = 1,
+    VA_DRI2 = 2,
+    VA_DUMMY = 3
+};
+
+union dri_buffer 
+{
+    struct {
+        unsigned int attachment;
+        unsigned int name;
+        unsigned int pitch;
+        unsigned int cpp;
+        unsigned int flags;
+    } dri2;
+
+    struct {
+    } dri1;
+};
+
+struct dri_drawable 
+{
+    XID x_drawable;
+    int is_window;
+    int x;
+    int y;
+    unsigned int width;
+    unsigned int height;
+    struct dri_drawable *next;
+};
+
+#define DRAWABLE_HASH_SZ 32
+struct dri_state 
+{
+    int fd;
+    int driConnectedFlag; /* 0: disconnected, 1: DRI, 2: DRI2 */
+#ifndef ANDROID
+    drm_handle_t hSAREA;
+    drm_context_t hwContext;
+    drmAddress pSAREA;
+    XID hwContextID;
+    struct dri_drawable *drawable_hash[DRAWABLE_HASH_SZ];
+
+    struct dri_drawable *(*createDrawable)(VADriverContextP ctx, XID x_drawable);
+    void (*destroyDrawable)(VADriverContextP ctx, struct dri_drawable *dri_drawable);
+    void (*swapBuffer)(VADriverContextP ctx, struct dri_drawable *dri_drawable);
+    union dri_buffer *(*getRenderingBuffer)(VADriverContextP ctx, struct dri_drawable *dri_drawable);
+    void (*close)(VADriverContextP ctx);
+#endif
+};
+
+Bool isDRI2Connected(VADriverContextP ctx, char **driver_name);
+Bool isDRI1Connected(VADriverContextP ctx, char **driver_name);
+void free_drawable(VADriverContextP ctx, struct dri_drawable* dri_drawable);
+void free_drawable_hashtable(VADriverContextP ctx);
+struct dri_drawable *dri_get_drawable(VADriverContextP ctx, XID drawable);
+void dri_swap_buffer(VADriverContextP ctx, struct dri_drawable *dri_drawable);
+union dri_buffer *dri_get_rendering_buffer(VADriverContextP ctx, struct dri_drawable *dri_drawable);
+
+#endif /* _VA_DRICOMMON_H_ */