rprBufferGetInfo
Queries information about a buffer.
rpr_status rprBufferGetInfo ( |
rpr_buffer buffer, |
rpr_buffer_info buffer_info, |
|
size_t size, |
|
void* data, |
|
size_t* size_ret); |
Parameters
Parameter |
Description |
---|---|
buffer |
The buffer to query. |
buffer_info |
The type of info to query. |
size |
The size of the buffer pointed by the data variable. |
data |
A buffer into which the results of the query will be stored. |
size_ret |
Returns the size in bytes of the data being queried. |
Notes
Query operations usually include two steps:
First, pass
data
as NULL along with a value for rpr_buffer_info detailing the information you wish to obtain. This will return the storage requirements for your query data.Secondly, query with
size_ret
set to NULL to fill the data buffer with the query data.
Output
The size in bytes of the data being queried.
Return
Returns RPR_SUCCESS in case of success, or RPR_ERROR code if a problem was encountered.
To learn how to handle errors in AMD Radeon ProRender SDK, see Error Handling.
Errors
Possible error codes:
RPR_ERROR_INVALID_PARAMETER