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#ifndef GSR_VAAPI_H
#define GSR_VAAPI_H
#include <stdint.h>
#include <stdbool.h>
// To prevent hwcontext_vaapi.h from including va.h.. An ugly hack
#define _VA_H_
// These definitions are copied from va.h, which is licensed under MIT
typedef void* VADisplay;
typedef int VAStatus;
typedef unsigned int VAGenericID;
typedef VAGenericID VAConfigID;
typedef VAGenericID VAContextID;
typedef VAGenericID VASurfaceID;
#define VA_STATUS_SUCCESS 0x00000000
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_INVALID_ID 0xffffffff
#define VA_INVALID_SURFACE VA_INVALID_ID
/** \brief Generic value types. */
typedef enum {
VAGenericValueTypeInteger = 1, /**< 32-bit signed integer. */
VAGenericValueTypeFloat, /**< 32-bit floating-point value. */
VAGenericValueTypePointer, /**< Generic pointer type */
VAGenericValueTypeFunc /**< Pointer to function */
} VAGenericValueType;
/** \brief Generic function type. */
typedef void (*VAGenericFunc)(void);
/** \brief Generic value. */
typedef struct _VAGenericValue {
/** \brief Value type. See #VAGenericValueType. */
VAGenericValueType type;
/** \brief Value holder. */
union {
/** \brief 32-bit signed integer. */
int32_t i;
/** \brief 32-bit float. */
float f;
/** \brief Generic pointer. */
void *p;
/** \brief Pointer to function. */
VAGenericFunc fn;
} value;
} VAGenericValue;
/** @name Surface attribute flags */
/**@{*/
/** \brief Surface attribute is not supported. */
#define VA_SURFACE_ATTRIB_NOT_SUPPORTED 0x00000000
/** \brief Surface attribute can be got through vaQuerySurfaceAttributes(). */
#define VA_SURFACE_ATTRIB_GETTABLE 0x00000001
/** \brief Surface attribute can be set through vaCreateSurfaces(). */
#define VA_SURFACE_ATTRIB_SETTABLE 0x00000002
/**@}*/
/** \brief Surface attribute types. */
typedef enum {
VASurfaceAttribNone = 0,
/**
* \brief Pixel format as a FOURCC (int, read/write).
*
* When vaQuerySurfaceAttributes() is called, the driver will return one
* PixelFormat attribute per supported pixel format.
*
* When provided as an input to vaCreateSurfaces(), the driver will
* allocate a surface with the provided pixel format.
*/
VASurfaceAttribPixelFormat,
/** \brief Minimal width in pixels (int, read-only). */
VASurfaceAttribMinWidth,
/** \brief Maximal width in pixels (int, read-only). */
VASurfaceAttribMaxWidth,
/** \brief Minimal height in pixels (int, read-only). */
VASurfaceAttribMinHeight,
/** \brief Maximal height in pixels (int, read-only). */
VASurfaceAttribMaxHeight,
/** \brief Surface memory type expressed in bit fields (int, read/write). */
VASurfaceAttribMemoryType,
/** \brief External buffer descriptor (pointer, write).
*
* Refer to the documentation for the memory type being created to
* determine what descriptor structure to pass here. If not otherwise
* stated, the common VASurfaceAttribExternalBuffers should be used.
*/
VASurfaceAttribExternalBufferDescriptor,
/** \brief Surface usage hint, gives the driver a hint of intended usage
* to optimize allocation (e.g. tiling) (int, read/write). */
VASurfaceAttribUsageHint,
/** \brief List of possible DRM format modifiers (pointer, write).
*
* The value must be a pointer to a VADRMFormatModifierList. This can only
* be used when allocating a new buffer, it's invalid to use this attribute
* when importing an existing buffer.
*/
VASurfaceAttribDRMFormatModifiers,
/** \brief Number of surface attributes. */
VASurfaceAttribCount
} VASurfaceAttribType;
/** \brief Surface attribute. */
typedef struct _VASurfaceAttrib {
/** \brief Type. */
VASurfaceAttribType type;
/** \brief Flags. See "Surface attribute flags". */
uint32_t flags;
/** \brief Value. See "Surface attribute types" for the expected types. */
VAGenericValue value;
} VASurfaceAttrib;
#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 */
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