/* openclwrapper.h Copyright (c) 2003-2012 HandBrake Team This file is part of the HandBrake source code Homepage: <http://handbrake.fr/>. It may be used under the terms of the GNU General Public License v2. For full terms see the file COPYING file or visit http://www.gnu.org/licenses/gpl-2.0.html Authors: Peng Gao <peng@multicorewareinc.com> <http://www.multicorewareinc.com/> Li Cao <li@multicorewareinc.com> <http://www.multicorewareinc.com/> */ #ifndef HB_OPENCL_WRAPPER_H #define HB_OPENCL_WRAPPER_H #include "common.h" #include "extras/cl.h" //support AMD opencl #define CL_QUEUE_THREAD_HANDLE_AMD 0x403E #define CL_MAP_WRITE_INVALIDATE_REGION (1 << 2) typedef struct _KernelEnv { cl_context context; cl_command_queue command_queue; cl_program program; cl_kernel kernel; char kernel_name[150]; int isAMD; }KernelEnv; typedef struct _OpenCLEnv { cl_platform_id platform; cl_context context; cl_device_id devices; cl_command_queue command_queue; }OpenCLEnv; //user defined, this is function wrapper which is used to set the input parameters , //luanch kernel and copy data from GPU to CPU or CPU to GPU. typedef int (*cl_kernel_function)( void **userdata, KernelEnv *kenv ); // registe a wapper for running the kernel specified by the kernel name int hb_register_kernel_wrapper( const char *kernel_name, cl_kernel_function function ); // run kernel , user call this function to luanch kernel. // kernel_name: this kernel name is used to find the kernel in opencl runtime environment // userdata: this userdata is the all parameters for running the kernel specified by kernel name int hb_run_kernel( const char *kernel_name, void **userdata ); // init the run time environment , this function must be called befor calling any function related to opencl // the argc must be set zero , argv must be set NULL, build_option is the options for build the kernel. int hb_init_opencl_run_env( int argc, char **argv, const char *build_option ); //relase all resource about the opencl , this function must be called after calling any functions related to opencl int hb_release_opencl_run_env(); // get the opencl status , 0: not init ; 1, inited; this function is used the check whether or not the opencl run time has been created int hb_opencl_stats(); // update opencl run time environments , such as commandqueue , platforme, context. program int hb_init_opencl_attr( OpenCLEnv * env ); // create kernel object by a kernel name on the specified opencl run time indicated by env parameter int hb_create_kernel( char * kernelname, KernelEnv * env ); // release kernel object which is generated by calling the hb_create_kernel api int hb_release_kernel( KernelEnv * env ); void hb_opencl_init(); int hb_get_opencl_env(); int hb_create_buffer(cl_mem *cl_Buf,int flags,int size); int hb_read_opencl_buffer(cl_mem cl_inBuf,unsigned char *outbuf,int size); int hb_cl_create_mapped_buffer(cl_mem *mem, unsigned char **addr, int size); int hb_cl_free_mapped_buffer(cl_mem mem, unsigned char *addr); int hb_use_buffers(); int hb_confirm_gpu_type(); #endif // HB_OPENCL_WRAPPER_H