VCHPRE_ int VCHPOST_ vc_dispmanx_resource_write_data_handle( DISPMANX_RESOURCE_HANDLE_T handle, VC_IMAGE_TYPE_T src_type /* not used */,
int src_pitch, VCHI_MEM_HANDLE_T mem_handle, uint32_t offset,
const VC_RECT_T * rect ) {
int32_t bulk_len;
uint32_t param[3];
uint32_t success = 0;
//Note that x coordinate of the rect is NOT used
//Address of data in host
offset += src_pitch * rect->y;
bulk_len = src_pitch * rect->height;
//Now send the bulk transfer across
//command parameters: resource handle, destination y, bulk length
param[0] = VC_HTOV32(handle);
param[1] = VC_HTOV32(rect->y);
param[2] = VC_HTOV32(bulk_len);
success = dispmanx_send_command( EDispmanBulkWrite | DISPMANX_NO_REPLY_MASK, param, sizeof(param));
if(success == 0)
{
lock_obtain();
success = vchi_bulk_queue_transmit_reloc( dispmanx_client.client_handle[0],
mem_handle, offset,
bulk_len,
VCHI_FLAGS_BLOCK_UNTIL_DATA_READ,
NULL );
lock_release();
}
return (int) success;
}
// if handle==MEM_HANDLE_INVALID: data is a pointer, size is length
// if handle!=MEM_HANDLE_INVALID: data is int, offset from handle base, size is length
void vchiq_queue_bulk_transmit(VCHIQ_STATE_T *state, int fourcc, VCHI_MEM_HANDLE_T handle, const void *data, int size, void *userdata)
{
VCHIQ_WRAPPER_T *st = wrapper_list;
while(st != NULL && (st->state != state || st->fourcc != fourcc))
st = st->next;
vcos_demand(st != NULL);
if(handle == MEM_HANDLE_INVALID)
vchi_bulk_queue_transmit(st->vchi_handle, data, size, VCHI_FLAGS_BLOCK_UNTIL_QUEUED, NULL);
else
vchi_bulk_queue_transmit_reloc(st->vchi_handle, handle, (uint32_t) data, size, VCHI_FLAGS_BLOCK_UNTIL_QUEUED, NULL);
}
