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-rw-r--r--include/vaapi.h63
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diff --git a/include/vaapi.h b/include/vaapi.h
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+#ifndef GSR_VAAPI_H
+#define GSR_VAAPI_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef void* VADisplay;
+typedef int VAStatus;
+typedef unsigned int VAGenericID;
+typedef VAGenericID VASurfaceID;
+
+typedef struct {
+ /** Pixel format fourcc of the whole surface (VA_FOURCC_*). */
+ uint32_t fourcc;
+ /** Width of the surface in pixels. */
+ uint32_t width;
+ /** Height of the surface in pixels. */
+ uint32_t height;
+ /** Number of distinct DRM objects making up the surface. */
+ uint32_t num_objects;
+ /** Description of each object. */
+ struct {
+ /** DRM PRIME file descriptor for this object. */
+ int fd;
+ /** Total size of this object (may include regions which are
+ * not part of the surface). */
+ uint32_t size;
+ /** Format modifier applied to this object. */
+ uint64_t drm_format_modifier;
+ } objects[4];
+ /** Number of layers making up the surface. */
+ uint32_t num_layers;
+ /** Description of each layer in the surface. */
+ struct {
+ /** DRM format fourcc of this layer (DRM_FOURCC_*). */
+ uint32_t drm_format;
+ /** Number of planes in this layer. */
+ uint32_t num_planes;
+ /** Index in the objects array of the object containing each
+ * plane. */
+ uint32_t object_index[4];
+ /** Offset within the object of each plane. */
+ uint32_t offset[4];
+ /** Pitch of each plane. */
+ uint32_t pitch[4];
+ } layers[4];
+} VADRMPRIMESurfaceDescriptor;
+
+#define VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2 0x40000000
+#define VA_EXPORT_SURFACE_READ_WRITE 0x0003
+#define VA_EXPORT_SURFACE_SEPARATE_LAYERS 0x0004
+
+typedef struct {
+ void *library;
+
+ VAStatus (*vaExportSurfaceHandle)(VADisplay dpy, VASurfaceID surface_id, uint32_t mem_type, uint32_t flags, void *descriptor);
+ VAStatus (*vaSyncSurface)(VADisplay dpy, VASurfaceID render_target);
+} gsr_vaapi;
+
+bool gsr_vaapi_load(gsr_vaapi *self);
+void gsr_vaapi_unload(gsr_vaapi *self);
+
+#endif /* GSR_VAAPI_H */