public BufferObject(Device dev, uint _width, uint _height, SurfaceFormat format, SurfaceFlags flags)
{
handle = gbm_bo_create(dev.Handle, _width, _height, format, flags);
if (handle == null)
{
throw new NotSupportedException("[GBM] BO creation failed.");
}
}
protected virtual void Dispose(bool disposing)
{
if (handle != null)
{
gbm_bo_destroy(handle);
}
handle = null;
}
public gbm_bo *Lock()
{
gbm_bo *bo = gbm_surface_lock_front_buffer(handle);
if (bo == null)
{
throw new Exception("[GBM]: Failed to lock front buffer.");
}
return(bo);
}
private void Lock(Action <BufferObject, uint> action)
{
unsafe
{
var lastBo = this.boHandle;
this.boHandle = gbm_surface_lock_front_buffer(this.surfaceHandle);
if (this.boHandle == null)
{
throw new Exception("[GBM]: Failed to lock front buffer.");
}
var bo = new BufferObject(this.boHandle);
action?.Invoke(bo, bo.GetFb(this.Device));
if (lastBo is not null)
{
this.Release(lastBo);
}
}
}
internal static extern ulong gbm_bo_get_modifier(gbm_bo *bo);
static extern void gbm_surface_release_buffer(gbm_surface *surface, gbm_bo *bo);
internal static extern int gbm_bo_get_plane_count(gbm_bo *bo);
internal static extern nint gbm_bo_map(gbm_bo *bo, uint x, uint y, uint width, uint height, TransferFlags flags, ref uint stride, out nint data);
internal static extern void gbm_bo_set_user_data(gbm_bo *bo, nint data, DestroyUserDataCallback callback);
internal static extern gbm_device *gbm_bo_get_device(gbm_bo *bo);
internal static extern int gbm_bo_write(gbm_bo *bo, nint buf, nint count);
internal static extern void gbm_bo_destroy(gbm_bo *bo);
public void Release(gbm_bo *bo)
{
gbm_surface_release_buffer(handle, bo);
}
static extern void gbm_surface_release_buffer(IntPtr surface, gbm_bo *buffer);
internal static extern int gbm_bo_write(gbm_bo *bo, IntPtr buf, IntPtr count);
internal static extern uint gbm_bo_get_stride_for_plane(gbm_bo *bo, int plane);
internal static extern uint gbm_bo_get_offset(gbm_bo *bo, int plane);
internal static extern gbm_bo_handle gbm_bo_get_handle_for_plane(gbm_bo *bo, int plane);
internal static extern nint gbm_bo_get_user_data(gbm_bo *bo);
internal static extern gbm_bo_handle gbm_bo_get_handle(gbm_bo *bo);
internal static extern void gbm_bo_unmap(gbm_bo *bo, nint data);
internal static extern uint gbm_bo_get_height(gbm_bo *bo);
public BufferObject(gbm_bo *handle)
{
this.handle = handle;
}
internal static extern uint gbm_bo_get_width(gbm_bo *bo);
private void Release(gbm_bo *bo)
{
gbm_surface_release_buffer(surfaceHandle, bo);
}
internal static extern uint gbm_bo_get_stride(gbm_bo *bo);
internal static extern SurfaceFormat gbm_bo_get_format(gbm_bo *bo);
public BufferObject(gbm_bo *_handle)
{
handle = _handle;
}