/**
* Destroy a VdpVideoMixer.
*/
VdpStatus
vlVdpVideoMixerDestroy(VdpVideoMixer mixer)
{
vlVdpVideoMixer *vmixer;
vmixer = vlGetDataHTAB(mixer);
if (!vmixer)
return VDP_STATUS_INVALID_HANDLE;
pipe_mutex_lock(vmixer->device->mutex);
vlVdpResolveDelayedRendering(vmixer->device, NULL, NULL);
vlRemoveDataHTAB(mixer);
vl_compositor_cleanup_state(&vmixer->cstate);
if (vmixer->noise_reduction.filter) {
vl_median_filter_cleanup(vmixer->noise_reduction.filter);
FREE(vmixer->noise_reduction.filter);
}
if (vmixer->sharpness.filter) {
vl_matrix_filter_cleanup(vmixer->sharpness.filter);
FREE(vmixer->sharpness.filter);
}
pipe_mutex_unlock(vmixer->device->mutex);
FREE(vmixer);
return VDP_STATUS_OK;
}
static void
vlVdpVideoMixerUpdateSharpnessFilter(vlVdpVideoMixer *vmixer)
{
assert(vmixer);
/* if present remove the old filter first */
if (vmixer->sharpness.filter) {
vl_matrix_filter_cleanup(vmixer->sharpness.filter);
FREE(vmixer->sharpness.filter);
vmixer->sharpness.filter = NULL;
}
/* and create a new filter as needed */
if (vmixer->sharpness.enabled && vmixer->sharpness.value != 0.0f) {
float matrix[9];
unsigned i;
if (vmixer->sharpness.value > 0.0f) {
matrix[0] = -1.0f; matrix[1] = -1.0f; matrix[2] = -1.0f;
matrix[3] = -1.0f; matrix[4] = 8.0f; matrix[5] = -1.0f;
matrix[6] = -1.0f; matrix[7] = -1.0f; matrix[8] = -1.0f;
for (i = 0; i < 9; ++i)
matrix[i] *= vmixer->sharpness.value;
matrix[4] += 1.0f;
} else {
matrix[0] = 1.0f; matrix[1] = 2.0f; matrix[2] = 1.0f;
matrix[3] = 2.0f; matrix[4] = 4.0f; matrix[5] = 2.0f;
matrix[6] = 1.0f; matrix[7] = 2.0f; matrix[8] = 1.0f;
for (i = 0; i < 9; ++i)
matrix[i] *= fabsf(vmixer->sharpness.value) / 16.0f;
matrix[4] += 1.0f - fabsf(vmixer->sharpness.value);
}
vmixer->sharpness.filter = MALLOC(sizeof(struct vl_matrix_filter));
vl_matrix_filter_init(vmixer->sharpness.filter, vmixer->device->context,
vmixer->video_width, vmixer->video_height,
3, 3, matrix);
}
}
