825 lines
32 KiB
C
825 lines
32 KiB
C
/*
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* Copyright (C) 2012 Peng Gao <peng@multicorewareinc.com>
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* Copyright (C) 2012 Li Cao <li@multicorewareinc.com>
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* Copyright (C) 2012 Wei Gao <weigao@multicorewareinc.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "opencl.h"
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#include "avstring.h"
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#include "log.h"
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#include "avassert.h"
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#include "opt.h"
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#if HAVE_PTHREADS
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#include <pthread.h>
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static pthread_mutex_t atomic_opencl_lock = PTHREAD_MUTEX_INITIALIZER;
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#define LOCK_OPENCL pthread_mutex_lock(&atomic_opencl_lock);
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#define UNLOCK_OPENCL pthread_mutex_unlock(&atomic_opencl_lock);
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#elif !HAVE_THREADS
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#define LOCK_OPENCL
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#define UNLOCK_OPENCL
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#endif
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#define MAX_KERNEL_NUM 500
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#define MAX_KERNEL_CODE_NUM 200
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typedef struct {
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int is_compiled;
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const char *kernel_string;
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} KernelCode;
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typedef struct {
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const AVClass *class;
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int log_offset;
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void *log_ctx;
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int init_count;
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int opt_init_flag;
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/**
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* if set to 1, the OpenCL environment was created by the user and
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* passed as AVOpenCLExternalEnv when initing ,0:created by opencl wrapper.
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*/
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int is_user_created;
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int platform_idx;
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int device_idx;
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char *build_options;
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cl_platform_id platform_id;
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cl_device_type device_type;
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cl_context context;
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cl_device_id device_id;
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cl_command_queue command_queue;
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int program_count;
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cl_program programs[MAX_KERNEL_CODE_NUM];
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int kernel_code_count;
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KernelCode kernel_code[MAX_KERNEL_CODE_NUM];
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int kernel_count;
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AVOpenCLDeviceList device_list;
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} OpenclContext;
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#define OFFSET(x) offsetof(OpenclContext, x)
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static const AVOption opencl_options[] = {
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{ "platform_idx", "set platform index value", OFFSET(platform_idx), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX},
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{ "device_idx", "set device index value", OFFSET(device_idx), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX},
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{ "build_options", "build options of opencl", OFFSET(build_options), AV_OPT_TYPE_STRING, {.str="-I."}, CHAR_MIN, CHAR_MAX},
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};
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static const AVClass openclutils_class = {
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.class_name = "OPENCLUTILS",
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.option = opencl_options,
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.item_name = av_default_item_name,
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.version = LIBAVUTIL_VERSION_INT,
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.log_level_offset_offset = offsetof(OpenclContext, log_offset),
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.parent_log_context_offset = offsetof(OpenclContext, log_ctx),
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};
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static OpenclContext opencl_ctx = {&openclutils_class};
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static const cl_device_type device_type[] = {CL_DEVICE_TYPE_GPU, CL_DEVICE_TYPE_CPU, CL_DEVICE_TYPE_DEFAULT};
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typedef struct {
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int err_code;
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const char *err_str;
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} OpenclErrorMsg;
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static const OpenclErrorMsg opencl_err_msg[] = {
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{CL_DEVICE_NOT_FOUND, "DEVICE NOT FOUND"},
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{CL_DEVICE_NOT_AVAILABLE, "DEVICE NOT AVAILABLE"},
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{CL_COMPILER_NOT_AVAILABLE, "COMPILER NOT AVAILABLE"},
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{CL_MEM_OBJECT_ALLOCATION_FAILURE, "MEM OBJECT ALLOCATION FAILURE"},
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{CL_OUT_OF_RESOURCES, "OUT OF RESOURCES"},
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{CL_OUT_OF_HOST_MEMORY, "OUT OF HOST MEMORY"},
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{CL_PROFILING_INFO_NOT_AVAILABLE, "PROFILING INFO NOT AVAILABLE"},
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{CL_MEM_COPY_OVERLAP, "MEM COPY OVERLAP"},
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{CL_IMAGE_FORMAT_MISMATCH, "IMAGE FORMAT MISMATCH"},
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{CL_IMAGE_FORMAT_NOT_SUPPORTED, "IMAGE FORMAT NOT_SUPPORTED"},
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{CL_BUILD_PROGRAM_FAILURE, "BUILD PROGRAM FAILURE"},
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{CL_MAP_FAILURE, "MAP FAILURE"},
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{CL_MISALIGNED_SUB_BUFFER_OFFSET, "MISALIGNED SUB BUFFER OFFSET"},
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{CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST, "EXEC STATUS ERROR FOR EVENTS IN WAIT LIST"},
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{CL_COMPILE_PROGRAM_FAILURE, "COMPILE PROGRAM FAILURE"},
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{CL_LINKER_NOT_AVAILABLE, "LINKER NOT AVAILABLE"},
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{CL_LINK_PROGRAM_FAILURE, "LINK PROGRAM FAILURE"},
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{CL_DEVICE_PARTITION_FAILED, "DEVICE PARTITION FAILED"},
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{CL_KERNEL_ARG_INFO_NOT_AVAILABLE, "KERNEL ARG INFO NOT AVAILABLE"},
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{CL_INVALID_VALUE, "INVALID VALUE"},
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{CL_INVALID_DEVICE_TYPE, "INVALID DEVICE TYPE"},
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{CL_INVALID_PLATFORM, "INVALID PLATFORM"},
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{CL_INVALID_DEVICE, "INVALID DEVICE"},
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{CL_INVALID_CONTEXT, "INVALID CONTEXT"},
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{CL_INVALID_QUEUE_PROPERTIES, "INVALID QUEUE PROPERTIES"},
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{CL_INVALID_COMMAND_QUEUE, "INVALID COMMAND QUEUE"},
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{CL_INVALID_HOST_PTR, "INVALID HOST PTR"},
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{CL_INVALID_MEM_OBJECT, "INVALID MEM OBJECT"},
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{CL_INVALID_IMAGE_FORMAT_DESCRIPTOR, "INVALID IMAGE FORMAT DESCRIPTOR"},
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{CL_INVALID_IMAGE_SIZE, "INVALID IMAGE SIZE"},
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{CL_INVALID_SAMPLER, "INVALID SAMPLER"},
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{CL_INVALID_BINARY, "INVALID BINARY"},
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{CL_INVALID_BUILD_OPTIONS, "INVALID BUILD OPTIONS"},
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{CL_INVALID_PROGRAM, "INVALID PROGRAM"},
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{CL_INVALID_PROGRAM_EXECUTABLE, "INVALID PROGRAM EXECUTABLE"},
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{CL_INVALID_KERNEL_NAME, "INVALID KERNEL NAME"},
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{CL_INVALID_KERNEL_DEFINITION, "INVALID KERNEL DEFINITION"},
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{CL_INVALID_KERNEL, "INVALID KERNEL"},
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{CL_INVALID_ARG_INDEX, "INVALID ARG INDEX"},
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{CL_INVALID_ARG_VALUE, "INVALID ARG VALUE"},
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{CL_INVALID_ARG_SIZE, "INVALID ARG_SIZE"},
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{CL_INVALID_KERNEL_ARGS, "INVALID KERNEL ARGS"},
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{CL_INVALID_WORK_DIMENSION, "INVALID WORK DIMENSION"},
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{CL_INVALID_WORK_GROUP_SIZE, "INVALID WORK GROUP SIZE"},
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{CL_INVALID_WORK_ITEM_SIZE, "INVALID WORK ITEM SIZE"},
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{CL_INVALID_GLOBAL_OFFSET, "INVALID GLOBAL OFFSET"},
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{CL_INVALID_EVENT_WAIT_LIST, "INVALID EVENT WAIT LIST"},
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{CL_INVALID_EVENT, "INVALID EVENT"},
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{CL_INVALID_OPERATION, "INVALID OPERATION"},
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{CL_INVALID_GL_OBJECT, "INVALID GL OBJECT"},
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{CL_INVALID_BUFFER_SIZE, "INVALID BUFFER SIZE"},
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{CL_INVALID_MIP_LEVEL, "INVALID MIP LEVEL"},
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{CL_INVALID_GLOBAL_WORK_SIZE, "INVALID GLOBAL WORK SIZE"},
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{CL_INVALID_PROPERTY, "INVALID PROPERTY"},
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{CL_INVALID_IMAGE_DESCRIPTOR, "INVALID IMAGE DESCRIPTOR"},
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{CL_INVALID_COMPILER_OPTIONS, "INVALID COMPILER OPTIONS"},
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{CL_INVALID_LINKER_OPTIONS, "INVALID LINKER OPTIONS"},
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{CL_INVALID_DEVICE_PARTITION_COUNT, "INVALID DEVICE PARTITION COUNT"},
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};
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static const char *opencl_errstr(cl_int status)
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{
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int i;
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for (i = 0; i < sizeof(opencl_err_msg); i++) {
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if (opencl_err_msg[i].err_code == status)
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return opencl_err_msg[i].err_str;
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}
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return "unknown error";
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}
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static void free_device_list(AVOpenCLDeviceList *device_list)
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{
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int i, j;
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if (!device_list)
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return;
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for (i = 0; i < device_list->platform_num; i++) {
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if (!device_list->platform_node[i])
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continue;
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for (j = 0; j < device_list->platform_node[i]->device_num; j++) {
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av_freep(&(device_list->platform_node[i]->device_node[j]));
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}
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av_freep(&device_list->platform_node[i]->device_node);
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av_freep(&device_list->platform_node[i]);
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}
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av_freep(&device_list->platform_node);
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device_list->platform_num = 0;
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}
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static int get_device_list(AVOpenCLDeviceList *device_list)
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{
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cl_int status;
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int i, j, k, device_num, total_devices_num,ret = 0;
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int *devices_num;
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cl_platform_id *platform_ids = NULL;
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cl_device_id *device_ids = NULL;
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AVOpenCLDeviceNode *device_node = NULL;
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status = clGetPlatformIDs(0, NULL, &device_list->platform_num);
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if (status != CL_SUCCESS) {
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av_log(&opencl_ctx, AV_LOG_ERROR,
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"Could not get OpenCL platform ids: %s\n", opencl_errstr(status));
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return AVERROR_EXTERNAL;
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}
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platform_ids = av_mallocz(device_list->platform_num * sizeof(cl_platform_id));
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if (!platform_ids)
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return AVERROR(ENOMEM);
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status = clGetPlatformIDs(device_list->platform_num, platform_ids, NULL);
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if (status != CL_SUCCESS) {
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av_log(&opencl_ctx, AV_LOG_ERROR,
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"Could not get OpenCL platform ids: %s\n", opencl_errstr(status));
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ret = AVERROR_EXTERNAL;
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goto end;
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}
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device_list->platform_node = av_mallocz(device_list->platform_num * sizeof(AVOpenCLPlatformNode *));
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if (!device_list->platform_node) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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devices_num = av_mallocz(sizeof(int) * FF_ARRAY_ELEMS(device_type));
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if (!devices_num) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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for (i = 0; i < device_list->platform_num; i++) {
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device_list->platform_node[i] = av_mallocz(sizeof(AVOpenCLPlatformNode));
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if (!device_list->platform_node[i]) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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device_list->platform_node[i]->platform_id = platform_ids[i];
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status = clGetPlatformInfo(platform_ids[i], CL_PLATFORM_VENDOR,
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sizeof(device_list->platform_node[i]->platform_name),
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device_list->platform_node[i]->platform_name, NULL);
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total_devices_num = 0;
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for (j = 0; j < FF_ARRAY_ELEMS(device_type); j++) {
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status = clGetDeviceIDs(device_list->platform_node[i]->platform_id,
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device_type[j], 0, NULL, &devices_num[j]);
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total_devices_num += devices_num[j];
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}
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device_list->platform_node[i]->device_node = av_mallocz(total_devices_num * sizeof(AVOpenCLDeviceNode *));
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if (!device_list->platform_node[i]->device_node) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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for (j = 0; j < FF_ARRAY_ELEMS(device_type); j++) {
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if (devices_num[j]) {
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device_ids = av_mallocz(devices_num[j] * sizeof(cl_device_id));
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if (!device_ids) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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status = clGetDeviceIDs(device_list->platform_node[i]->platform_id, device_type[j],
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devices_num[j], device_ids, NULL);
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if (status != CL_SUCCESS) {
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av_log(&opencl_ctx, AV_LOG_WARNING,
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"Could not get device ID: %s:\n", opencl_errstr(status));
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av_freep(&device_ids);
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continue;
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}
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for (k = 0; k < devices_num[j]; k++) {
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device_num = device_list->platform_node[i]->device_num;
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device_list->platform_node[i]->device_node[device_num] = av_mallocz(sizeof(AVOpenCLDeviceNode));
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if (!device_list->platform_node[i]->device_node[device_num]) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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device_node = device_list->platform_node[i]->device_node[device_num];
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device_node->device_id = device_ids[k];
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device_node->device_type = device_type[j];
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status = clGetDeviceInfo(device_node->device_id, CL_DEVICE_NAME,
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sizeof(device_node->device_name), device_node->device_name,
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NULL);
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if (status != CL_SUCCESS) {
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av_log(&opencl_ctx, AV_LOG_WARNING,
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"Could not get device name: %s\n", opencl_errstr(status));
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continue;
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}
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device_list->platform_node[i]->device_num++;
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}
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av_freep(&device_ids);
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}
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}
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}
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end:
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av_freep(&platform_ids);
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av_freep(&devices_num);
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av_freep(&device_ids);
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if (ret < 0)
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free_device_list(device_list);
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return ret;
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}
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int av_opencl_get_device_list(AVOpenCLDeviceList **device_list)
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{
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int ret = 0;
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*device_list = av_mallocz(sizeof(AVOpenCLDeviceList));
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if (!(*device_list)) {
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av_log(&opencl_ctx, AV_LOG_ERROR, "Could not allocate opencl device list\n");
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return AVERROR(ENOMEM);
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}
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ret = get_device_list(*device_list);
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if (ret < 0) {
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av_log(&opencl_ctx, AV_LOG_ERROR, "Could not get device list from environment\n");
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free_device_list(*device_list);
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av_freep(device_list);
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return ret;
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}
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return ret;
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}
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void av_opencl_free_device_list(AVOpenCLDeviceList **device_list)
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{
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free_device_list(*device_list);
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av_freep(device_list);
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}
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int av_opencl_set_option(const char *key, const char *val)
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{
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int ret = 0;
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LOCK_OPENCL
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if (!opencl_ctx.opt_init_flag) {
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av_opt_set_defaults(&opencl_ctx);
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opencl_ctx.opt_init_flag = 1;
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}
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ret = av_opt_set(&opencl_ctx, key, val, 0);
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UNLOCK_OPENCL
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return ret;
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}
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int av_opencl_get_option(const char *key, uint8_t **out_val)
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{
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int ret = 0;
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LOCK_OPENCL
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ret = av_opt_get(&opencl_ctx, key, 0, out_val);
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UNLOCK_OPENCL
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return ret;
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}
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void av_opencl_free_option(void)
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{
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/*FIXME: free openclutils context*/
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LOCK_OPENCL
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av_opt_free(&opencl_ctx);
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UNLOCK_OPENCL
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}
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AVOpenCLExternalEnv *av_opencl_alloc_external_env(void)
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{
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AVOpenCLExternalEnv *ext = av_mallocz(sizeof(AVOpenCLExternalEnv));
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if (!ext) {
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av_log(&opencl_ctx, AV_LOG_ERROR,
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"Could not malloc external opencl environment data space\n");
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}
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return ext;
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}
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void av_opencl_free_external_env(AVOpenCLExternalEnv **ext_opencl_env)
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{
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av_freep(ext_opencl_env);
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}
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int av_opencl_register_kernel_code(const char *kernel_code)
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{
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int i, ret = 0;
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LOCK_OPENCL;
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if (opencl_ctx.kernel_code_count >= MAX_KERNEL_CODE_NUM) {
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av_log(&opencl_ctx, AV_LOG_ERROR,
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"Could not register kernel code, maximum number of registered kernel code %d already reached\n",
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MAX_KERNEL_CODE_NUM);
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ret = AVERROR(EINVAL);
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goto end;
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}
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for (i = 0; i < opencl_ctx.kernel_code_count; i++) {
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if (opencl_ctx.kernel_code[i].kernel_string == kernel_code) {
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av_log(&opencl_ctx, AV_LOG_WARNING, "Same kernel code has been registered\n");
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goto end;
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}
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}
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opencl_ctx.kernel_code[opencl_ctx.kernel_code_count].kernel_string = kernel_code;
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opencl_ctx.kernel_code[opencl_ctx.kernel_code_count].is_compiled = 0;
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opencl_ctx.kernel_code_count++;
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end:
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UNLOCK_OPENCL;
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return ret;
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}
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int av_opencl_create_kernel(AVOpenCLKernelEnv *env, const char *kernel_name)
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{
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cl_int status;
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int i, ret = 0;
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LOCK_OPENCL;
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if (strlen(kernel_name) + 1 > AV_OPENCL_MAX_KERNEL_NAME_SIZE) {
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av_log(&opencl_ctx, AV_LOG_ERROR, "Created kernel name %s is too long\n", kernel_name);
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ret = AVERROR(EINVAL);
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goto end;
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}
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if (!env->kernel) {
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if (opencl_ctx.kernel_count >= MAX_KERNEL_NUM) {
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av_log(&opencl_ctx, AV_LOG_ERROR,
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"Could not create kernel with name '%s', maximum number of kernels %d already reached\n",
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kernel_name, MAX_KERNEL_NUM);
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ret = AVERROR(EINVAL);
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goto end;
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}
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if (opencl_ctx.program_count == 0) {
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av_log(&opencl_ctx, AV_LOG_ERROR, "Program count of OpenCL is 0, can not create kernel\n");
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ret = AVERROR(EINVAL);
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goto end;
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}
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for (i = 0; i < opencl_ctx.program_count; i++) {
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env->kernel = clCreateKernel(opencl_ctx.programs[i], kernel_name, &status);
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if (status == CL_SUCCESS)
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break;
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}
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if (status != CL_SUCCESS) {
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av_log(&opencl_ctx, AV_LOG_ERROR, "Could not create OpenCL kernel: %s\n", opencl_errstr(status));
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ret = AVERROR_EXTERNAL;
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goto end;
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}
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opencl_ctx.kernel_count++;
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env->command_queue = opencl_ctx.command_queue;
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av_strlcpy(env->kernel_name, kernel_name, sizeof(env->kernel_name));
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}
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end:
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UNLOCK_OPENCL;
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return ret;
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}
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void av_opencl_release_kernel(AVOpenCLKernelEnv *env)
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{
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cl_int status;
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LOCK_OPENCL
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if (!env->kernel)
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goto end;
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status = clReleaseKernel(env->kernel);
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if (status != CL_SUCCESS) {
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av_log(&opencl_ctx, AV_LOG_ERROR, "Could not release kernel: %s\n",
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opencl_errstr(status));
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}
|
|
env->kernel = NULL;
|
|
env->command_queue = NULL;
|
|
env->kernel_name[0] = 0;
|
|
opencl_ctx.kernel_count--;
|
|
end:
|
|
UNLOCK_OPENCL
|
|
}
|
|
|
|
static int init_opencl_env(OpenclContext *opencl_ctx, AVOpenCLExternalEnv *ext_opencl_env)
|
|
{
|
|
cl_int status;
|
|
cl_context_properties cps[3];
|
|
int i, ret = 0;
|
|
AVOpenCLDeviceNode *device_node = NULL;
|
|
|
|
if (ext_opencl_env) {
|
|
if (opencl_ctx->is_user_created)
|
|
return 0;
|
|
opencl_ctx->platform_id = ext_opencl_env->platform_id;
|
|
opencl_ctx->is_user_created = 1;
|
|
opencl_ctx->command_queue = ext_opencl_env->command_queue;
|
|
opencl_ctx->context = ext_opencl_env->context;
|
|
opencl_ctx->device_id = ext_opencl_env->device_id;
|
|
opencl_ctx->device_type = ext_opencl_env->device_type;
|
|
} else {
|
|
if (!opencl_ctx->is_user_created) {
|
|
if (!opencl_ctx->device_list.platform_num) {
|
|
ret = get_device_list(&opencl_ctx->device_list);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
if (opencl_ctx->platform_idx >= 0) {
|
|
if (opencl_ctx->device_list.platform_num < opencl_ctx->platform_idx + 1) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR, "User set platform index not exist\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (!opencl_ctx->device_list.platform_node[opencl_ctx->platform_idx]->device_num) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR, "No devices in user specific platform with index %d\n",
|
|
opencl_ctx->platform_idx);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
opencl_ctx->platform_id = opencl_ctx->device_list.platform_node[opencl_ctx->platform_idx]->platform_id;
|
|
} else {
|
|
/* get a usable platform by default*/
|
|
for (i = 0; i < opencl_ctx->device_list.platform_num; i++) {
|
|
if (opencl_ctx->device_list.platform_node[i]->device_num) {
|
|
opencl_ctx->platform_id = opencl_ctx->device_list.platform_node[i]->platform_id;
|
|
opencl_ctx->platform_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!opencl_ctx->platform_id) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR, "Could not get OpenCL platforms\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
/* get a usable device*/
|
|
if (opencl_ctx->device_idx >= 0) {
|
|
if (opencl_ctx->device_list.platform_node[opencl_ctx->platform_idx]->device_num < opencl_ctx->device_idx + 1) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR,
|
|
"Could not get OpenCL device idx %d in the user set platform\n", opencl_ctx->platform_idx);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else {
|
|
opencl_ctx->device_idx = 0;
|
|
}
|
|
|
|
device_node = opencl_ctx->device_list.platform_node[opencl_ctx->platform_idx]->device_node[opencl_ctx->device_idx];
|
|
opencl_ctx->device_id = device_node->device_id;
|
|
opencl_ctx->device_type = device_node->device_type;
|
|
|
|
/*
|
|
* Use available platform.
|
|
*/
|
|
av_log(opencl_ctx, AV_LOG_VERBOSE, "Platform Name: %s, device id: 0x%x\n",
|
|
opencl_ctx->device_list.platform_node[opencl_ctx->platform_idx]->platform_name,
|
|
(unsigned int)opencl_ctx->device_id);
|
|
cps[0] = CL_CONTEXT_PLATFORM;
|
|
cps[1] = (cl_context_properties)opencl_ctx->platform_id;
|
|
cps[2] = 0;
|
|
|
|
opencl_ctx->context = clCreateContextFromType(cps, opencl_ctx->device_type,
|
|
NULL, NULL, &status);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR,
|
|
"Could not get OpenCL context from device type: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
opencl_ctx->command_queue = clCreateCommandQueue(opencl_ctx->context, opencl_ctx->device_id,
|
|
0, &status);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR,
|
|
"Could not create OpenCL command queue: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int compile_kernel_file(OpenclContext *opencl_ctx)
|
|
{
|
|
cl_int status;
|
|
char *temp, *source_str = NULL;
|
|
size_t source_str_len = 0;
|
|
int i, ret = 0;
|
|
|
|
for (i = 0; i < opencl_ctx->kernel_code_count; i++) {
|
|
if (!opencl_ctx->kernel_code[i].is_compiled)
|
|
source_str_len += strlen(opencl_ctx->kernel_code[i].kernel_string);
|
|
}
|
|
if (!source_str_len) {
|
|
return 0;
|
|
}
|
|
source_str = av_mallocz(source_str_len + 1);
|
|
if (!source_str) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
temp = source_str;
|
|
for (i = 0; i < opencl_ctx->kernel_code_count; i++) {
|
|
if (!opencl_ctx->kernel_code[i].is_compiled) {
|
|
memcpy(temp, opencl_ctx->kernel_code[i].kernel_string,
|
|
strlen(opencl_ctx->kernel_code[i].kernel_string));
|
|
opencl_ctx->kernel_code[i].is_compiled = 1;
|
|
temp += strlen(opencl_ctx->kernel_code[i].kernel_string);
|
|
}
|
|
}
|
|
/* create a CL program using the kernel source */
|
|
opencl_ctx->programs[opencl_ctx->program_count] = clCreateProgramWithSource(opencl_ctx->context,
|
|
1, (const char **)(&source_str),
|
|
&source_str_len, &status);
|
|
if(status != CL_SUCCESS) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR,
|
|
"Could not create OpenCL program with source code: %s\n", opencl_errstr(status));
|
|
ret = AVERROR_EXTERNAL;
|
|
goto end;
|
|
}
|
|
if (!opencl_ctx->programs[opencl_ctx->program_count]) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR, "Created program is NULL\n");
|
|
ret = AVERROR_EXTERNAL;
|
|
goto end;
|
|
}
|
|
status = clBuildProgram(opencl_ctx->programs[opencl_ctx->program_count], 1, &(opencl_ctx->device_id),
|
|
opencl_ctx->build_options, NULL, NULL);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(opencl_ctx, AV_LOG_ERROR,
|
|
"Could not compile OpenCL kernel: %s\n", opencl_errstr(status));
|
|
ret = AVERROR_EXTERNAL;
|
|
goto end;
|
|
}
|
|
opencl_ctx->program_count++;
|
|
end:
|
|
av_free(source_str);
|
|
return ret;
|
|
}
|
|
|
|
int av_opencl_init(AVOpenCLExternalEnv *ext_opencl_env)
|
|
{
|
|
int ret = 0;
|
|
LOCK_OPENCL
|
|
if (!opencl_ctx.init_count) {
|
|
if (!opencl_ctx.opt_init_flag) {
|
|
av_opt_set_defaults(&opencl_ctx);
|
|
opencl_ctx.opt_init_flag = 1;
|
|
}
|
|
ret = init_opencl_env(&opencl_ctx, ext_opencl_env);
|
|
if (ret < 0)
|
|
goto end;
|
|
}
|
|
ret = compile_kernel_file(&opencl_ctx);
|
|
if (ret < 0)
|
|
goto end;
|
|
if (opencl_ctx.kernel_code_count <= 0) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"No kernel code is registered, compile kernel file failed\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto end;
|
|
}
|
|
opencl_ctx.init_count++;
|
|
|
|
end:
|
|
UNLOCK_OPENCL
|
|
return ret;
|
|
}
|
|
|
|
void av_opencl_uninit(void)
|
|
{
|
|
cl_int status;
|
|
int i;
|
|
LOCK_OPENCL
|
|
opencl_ctx.init_count--;
|
|
if (opencl_ctx.is_user_created)
|
|
goto end;
|
|
if (opencl_ctx.init_count > 0 || opencl_ctx.kernel_count > 0)
|
|
goto end;
|
|
for (i = 0; i < opencl_ctx.program_count; i++) {
|
|
if (opencl_ctx.programs[i]) {
|
|
status = clReleaseProgram(opencl_ctx.programs[i]);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not release OpenCL program: %s\n", opencl_errstr(status));
|
|
}
|
|
opencl_ctx.programs[i] = NULL;
|
|
}
|
|
}
|
|
if (opencl_ctx.command_queue) {
|
|
status = clReleaseCommandQueue(opencl_ctx.command_queue);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not release OpenCL command queue: %s\n", opencl_errstr(status));
|
|
}
|
|
opencl_ctx.command_queue = NULL;
|
|
}
|
|
if (opencl_ctx.context) {
|
|
status = clReleaseContext(opencl_ctx.context);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not release OpenCL context: %s\n", opencl_errstr(status));
|
|
}
|
|
opencl_ctx.context = NULL;
|
|
}
|
|
free_device_list(&opencl_ctx.device_list);
|
|
end:
|
|
if ((opencl_ctx.init_count <= 0) && (opencl_ctx.kernel_count <= 0))
|
|
av_opt_free(&opencl_ctx); //FIXME: free openclutils context
|
|
UNLOCK_OPENCL
|
|
}
|
|
|
|
int av_opencl_buffer_create(cl_mem *cl_buf, size_t cl_buf_size, int flags, void *host_ptr)
|
|
{
|
|
cl_int status;
|
|
*cl_buf = clCreateBuffer(opencl_ctx.context, flags, cl_buf_size, host_ptr, &status);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR, "Could not create OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void av_opencl_buffer_release(cl_mem *cl_buf)
|
|
{
|
|
cl_int status = 0;
|
|
if (!cl_buf)
|
|
return;
|
|
status = clReleaseMemObject(*cl_buf);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not release OpenCL buffer: %s\n", opencl_errstr(status));
|
|
}
|
|
memset(cl_buf, 0, sizeof(*cl_buf));
|
|
}
|
|
|
|
int av_opencl_buffer_write(cl_mem dst_cl_buf, uint8_t *src_buf, size_t buf_size)
|
|
{
|
|
cl_int status;
|
|
void *mapped = clEnqueueMapBuffer(opencl_ctx.command_queue, dst_cl_buf,
|
|
CL_TRUE, CL_MAP_WRITE, 0, sizeof(uint8_t) * buf_size,
|
|
0, NULL, NULL, &status);
|
|
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not map OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
memcpy(mapped, src_buf, buf_size);
|
|
|
|
status = clEnqueueUnmapMemObject(opencl_ctx.command_queue, dst_cl_buf, mapped, 0, NULL, NULL);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not unmap OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int av_opencl_buffer_read(uint8_t *dst_buf, cl_mem src_cl_buf, size_t buf_size)
|
|
{
|
|
cl_int status;
|
|
void *mapped = clEnqueueMapBuffer(opencl_ctx.command_queue, src_cl_buf,
|
|
CL_TRUE, CL_MAP_READ, 0, buf_size,
|
|
0, NULL, NULL, &status);
|
|
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not map OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
memcpy(dst_buf, mapped, buf_size);
|
|
|
|
status = clEnqueueUnmapMemObject(opencl_ctx.command_queue, src_cl_buf, mapped, 0, NULL, NULL);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not unmap OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int av_opencl_buffer_write_image(cl_mem dst_cl_buf, size_t cl_buffer_size, int dst_cl_offset,
|
|
uint8_t **src_data, int *plane_size, int plane_num)
|
|
{
|
|
int i, buffer_size = 0;
|
|
uint8_t *temp;
|
|
cl_int status;
|
|
void *mapped;
|
|
if ((unsigned int)plane_num > 8) {
|
|
return AVERROR(EINVAL);
|
|
}
|
|
for (i = 0;i < plane_num;i++) {
|
|
buffer_size += plane_size[i];
|
|
}
|
|
if (buffer_size > cl_buffer_size) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Cannot write image to OpenCL buffer: buffer too small\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
mapped = clEnqueueMapBuffer(opencl_ctx.command_queue, dst_cl_buf,
|
|
CL_TRUE, CL_MAP_WRITE, 0, buffer_size + dst_cl_offset,
|
|
0, NULL, NULL, &status);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not map OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
temp = mapped;
|
|
temp += dst_cl_offset;
|
|
for (i = 0; i < plane_num; i++) {
|
|
memcpy(temp, src_data[i], plane_size[i]);
|
|
temp += plane_size[i];
|
|
}
|
|
status = clEnqueueUnmapMemObject(opencl_ctx.command_queue, dst_cl_buf, mapped, 0, NULL, NULL);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not unmap OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int av_opencl_buffer_read_image(uint8_t **dst_data, int *plane_size, int plane_num,
|
|
cl_mem src_cl_buf, size_t cl_buffer_size)
|
|
{
|
|
int i,buffer_size = 0,ret = 0;
|
|
uint8_t *temp;
|
|
void *mapped;
|
|
cl_int status;
|
|
if ((unsigned int)plane_num > 8) {
|
|
return AVERROR(EINVAL);
|
|
}
|
|
for (i = 0; i < plane_num; i++) {
|
|
buffer_size += plane_size[i];
|
|
}
|
|
if (buffer_size > cl_buffer_size) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Cannot write image to CPU buffer: OpenCL buffer too small\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
mapped = clEnqueueMapBuffer(opencl_ctx.command_queue, src_cl_buf,
|
|
CL_TRUE, CL_MAP_READ, 0, buffer_size,
|
|
0, NULL, NULL, &status);
|
|
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not map OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
temp = mapped;
|
|
if (ret >= 0) {
|
|
for (i = 0; i < plane_num; i++) {
|
|
memcpy(dst_data[i], temp, plane_size[i]);
|
|
temp += plane_size[i];
|
|
}
|
|
}
|
|
status = clEnqueueUnmapMemObject(opencl_ctx.command_queue, src_cl_buf, mapped, 0, NULL, NULL);
|
|
if (status != CL_SUCCESS) {
|
|
av_log(&opencl_ctx, AV_LOG_ERROR,
|
|
"Could not unmap OpenCL buffer: %s\n", opencl_errstr(status));
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
return 0;
|
|
}
|