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#ifndef _GRALLOC_GEM_H_
#define _GRALLOC_GEM_H_
#include <cutils/native_handle.h>
#include "gralloc_mod.h"
struct drm_bo_t {
native_handle_t base;
#define DRM_HANDLE_MAGIC 0x12345678
#define DRM_HANDLE_NUM_INTS 11
#define DRM_HANDLE_NUM_FDS 0
int magic;
int width;
int height;
int format;
int usage;
int name;
int stride;
/* these fields are undefined until validated */
int pid;
int fb_handle;
int fb_id;
int data; /* pointer as int? 32-bit only! */
};
int
drm_gem_init(struct drm_module_t *drm);
int
drm_gem_get_magic(struct drm_module_t *drm, int32_t *magic);
int
drm_gem_auth_magic(struct drm_module_t *drm, int32_t magic);
static inline struct drm_bo_t *
drm_gem_get(buffer_handle_t handle)
{
struct drm_bo_t *bo = (struct drm_bo_t *) handle;
if (bo->base.version != sizeof(bo->base) ||
bo->base.numInts != DRM_HANDLE_NUM_INTS ||
bo->base.numFds != DRM_HANDLE_NUM_FDS ||
bo->magic != DRM_HANDLE_MAGIC)
bo = NULL;
return bo;
}
struct drm_bo_t *
drm_gem_validate(buffer_handle_t handle);
struct drm_bo_t *
drm_gem_create_bo(int width, int height, int format, int usage);
int
drm_gem_drv_init(struct drm_module_t *drm);
struct drm_gem_drv {
int (*init)(struct drm_module_t *drm);
struct drm_bo_t *(*alloc)(struct drm_module_t *drm, int width, int height,
int format, int usage, int *stride);
void (*free)(struct drm_module_t *drm, struct drm_bo_t *bo);
int (*map)(struct drm_module_t *drm, struct drm_bo_t *bo,
int x, int y, int w, int h, int enable_write, void **addr);
void (*unmap)(struct drm_module_t *drm, struct drm_bo_t *bo);
};
extern const struct drm_gem_drv drm_gem_drv_intel;
extern const struct drm_gem_drv drm_gem_drv_pipe;
static inline struct drm_bo_t *
drm_gem_drv_alloc(struct drm_module_t *drm, int width, int height,
int format, int usage, int *stride)
{
const struct drm_gem_drv *drv = (const struct drm_gem_drv *) drm->drv;
return drv->alloc(drm, width, height, format, usage, stride);
}
static inline void
drm_gem_drv_free(struct drm_module_t *drm, struct drm_bo_t *bo)
{
const struct drm_gem_drv *drv = (const struct drm_gem_drv *) drm->drv;
drv->free(drm, bo);
}
static inline int
drm_gem_drv_map(struct drm_module_t *drm, struct drm_bo_t *bo,
int x, int y, int w, int h, int enable_write, void **addr)
{
const struct drm_gem_drv *drv = (const struct drm_gem_drv *) drm->drv;
return drv->map(drm, bo, x, y, w, h, enable_write, addr);
}
static inline void
drm_gem_drv_unmap(struct drm_module_t *drm, struct drm_bo_t *bo)
{
const struct drm_gem_drv *drv = (const struct drm_gem_drv *) drm->drv;
drv->unmap(drm, bo);
}
#endif /* _GRALLOC_GEM_H_ */
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