diff options
Diffstat (limited to 'libavutil/opencl.c')
| -rw-r--r-- | libavutil/opencl.c | 812 |
1 files changed, 812 insertions, 0 deletions
diff --git a/libavutil/opencl.c b/libavutil/opencl.c new file mode 100644 index 0000000000..5887b50bda --- /dev/null +++ b/libavutil/opencl.c @@ -0,0 +1,812 @@ +/* + * Copyright (C) 2012 Peng Gao <peng@multicorewareinc.com> + * Copyright (C) 2012 Li Cao <li@multicorewareinc.com> + * Copyright (C) 2012 Wei Gao <weigao@multicorewareinc.com> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "opencl.h" +#include "avstring.h" +#include "log.h" +#include "avassert.h" +#include "opt.h" + +#if HAVE_PTHREADS + +#include <pthread.h> +static pthread_mutex_t atomic_opencl_lock = PTHREAD_MUTEX_INITIALIZER; + +#define LOCK_OPENCL pthread_mutex_lock(&atomic_opencl_lock) +#define UNLOCK_OPENCL pthread_mutex_unlock(&atomic_opencl_lock) + +#elif !HAVE_THREADS +#define LOCK_OPENCL +#define UNLOCK_OPENCL +#endif + + +#define MAX_KERNEL_NUM 500 +#define MAX_KERNEL_CODE_NUM 200 + +typedef struct { + int is_compiled; + const char *kernel_string; +} KernelCode; + +typedef struct { + const AVClass *class; + int log_offset; + void *log_ctx; + int init_count; + int opt_init_flag; + /** + * if set to 1, the OpenCL environment was created by the user and + * passed as AVOpenCLExternalEnv when initing ,0:created by opencl wrapper. + */ + int is_user_created; + int platform_idx; + int device_idx; + char *build_options; + cl_platform_id platform_id; + cl_device_type device_type; + cl_context context; + cl_device_id device_id; + cl_command_queue command_queue; + int program_count; + cl_program programs[MAX_KERNEL_CODE_NUM]; + int kernel_code_count; + KernelCode kernel_code[MAX_KERNEL_CODE_NUM]; + int kernel_count; + AVOpenCLDeviceList device_list; +} OpenclContext; + +#define OFFSET(x) offsetof(OpenclContext, x) + +static const AVOption opencl_options[] = { + { "platform_idx", "set platform index value", OFFSET(platform_idx), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX}, + { "device_idx", "set device index value", OFFSET(device_idx), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX}, + { "build_options", "build options of opencl", OFFSET(build_options), AV_OPT_TYPE_STRING, {.str="-I."}, CHAR_MIN, CHAR_MAX}, + { NULL } +}; + +static const AVClass openclutils_class = { + .class_name = "OPENCLUTILS", + .option = opencl_options, + .item_name = av_default_item_name, + .version = LIBAVUTIL_VERSION_INT, + .log_level_offset_offset = offsetof(OpenclContext, log_offset), + .parent_log_context_offset = offsetof(OpenclContext, log_ctx), +}; + +static OpenclContext opencl_ctx = {&openclutils_class}; + +static const cl_device_type device_type[] = {CL_DEVICE_TYPE_GPU, CL_DEVICE_TYPE_CPU, CL_DEVICE_TYPE_DEFAULT}; + +typedef struct { + int err_code; + const char *err_str; +} OpenclErrorMsg; + +static const OpenclErrorMsg opencl_err_msg[] = { + {CL_DEVICE_NOT_FOUND, "DEVICE NOT FOUND"}, + {CL_DEVICE_NOT_AVAILABLE, "DEVICE NOT AVAILABLE"}, + {CL_COMPILER_NOT_AVAILABLE, "COMPILER NOT AVAILABLE"}, + {CL_MEM_OBJECT_ALLOCATION_FAILURE, "MEM OBJECT ALLOCATION FAILURE"}, + {CL_OUT_OF_RESOURCES, "OUT OF RESOURCES"}, + {CL_OUT_OF_HOST_MEMORY, "OUT OF HOST MEMORY"}, + {CL_PROFILING_INFO_NOT_AVAILABLE, "PROFILING INFO NOT AVAILABLE"}, + {CL_MEM_COPY_OVERLAP, "MEM COPY OVERLAP"}, + {CL_IMAGE_FORMAT_MISMATCH, "IMAGE FORMAT MISMATCH"}, + {CL_IMAGE_FORMAT_NOT_SUPPORTED, "IMAGE FORMAT NOT_SUPPORTED"}, + {CL_BUILD_PROGRAM_FAILURE, "BUILD PROGRAM FAILURE"}, + {CL_MAP_FAILURE, "MAP FAILURE"}, + {CL_MISALIGNED_SUB_BUFFER_OFFSET, "MISALIGNED SUB BUFFER OFFSET"}, + {CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST, "EXEC STATUS ERROR FOR EVENTS IN WAIT LIST"}, + {CL_COMPILE_PROGRAM_FAILURE, "COMPILE PROGRAM FAILURE"}, + {CL_LINKER_NOT_AVAILABLE, "LINKER NOT AVAILABLE"}, + {CL_LINK_PROGRAM_FAILURE, "LINK PROGRAM FAILURE"}, + {CL_DEVICE_PARTITION_FAILED, "DEVICE PARTITION FAILED"}, + {CL_KERNEL_ARG_INFO_NOT_AVAILABLE, "KERNEL ARG INFO NOT AVAILABLE"}, + {CL_INVALID_VALUE, "INVALID VALUE"}, + {CL_INVALID_DEVICE_TYPE, "INVALID DEVICE TYPE"}, + {CL_INVALID_PLATFORM, "INVALID PLATFORM"}, + {CL_INVALID_DEVICE, "INVALID DEVICE"}, + {CL_INVALID_CONTEXT, "INVALID CONTEXT"}, + {CL_INVALID_QUEUE_PROPERTIES, "INVALID QUEUE PROPERTIES"}, + {CL_INVALID_COMMAND_QUEUE, "INVALID COMMAND QUEUE"}, + {CL_INVALID_HOST_PTR, "INVALID HOST PTR"}, + {CL_INVALID_MEM_OBJECT, "INVALID MEM OBJECT"}, + {CL_INVALID_IMAGE_FORMAT_DESCRIPTOR, "INVALID IMAGE FORMAT DESCRIPTOR"}, + {CL_INVALID_IMAGE_SIZE, "INVALID IMAGE SIZE"}, + {CL_INVALID_SAMPLER, "INVALID SAMPLER"}, + {CL_INVALID_BINARY, "INVALID BINARY"}, + {CL_INVALID_BUILD_OPTIONS, "INVALID BUILD OPTIONS"}, + {CL_INVALID_PROGRAM, "INVALID PROGRAM"}, + {CL_INVALID_PROGRAM_EXECUTABLE, "INVALID PROGRAM EXECUTABLE"}, + {CL_INVALID_KERNEL_NAME, "INVALID KERNEL NAME"}, + {CL_INVALID_KERNEL_DEFINITION, "INVALID KERNEL DEFINITION"}, + {CL_INVALID_KERNEL, "INVALID KERNEL"}, + {CL_INVALID_ARG_INDEX, "INVALID ARG INDEX"}, + {CL_INVALID_ARG_VALUE, "INVALID ARG VALUE"}, + {CL_INVALID_ARG_SIZE, "INVALID ARG_SIZE"}, + {CL_INVALID_KERNEL_ARGS, "INVALID KERNEL ARGS"}, + {CL_INVALID_WORK_DIMENSION, "INVALID WORK DIMENSION"}, + {CL_INVALID_WORK_GROUP_SIZE, "INVALID WORK GROUP SIZE"}, + {CL_INVALID_WORK_ITEM_SIZE, "INVALID WORK ITEM SIZE"}, + {CL_INVALID_GLOBAL_OFFSET, "INVALID GLOBAL OFFSET"}, + {CL_INVALID_EVENT_WAIT_LIST, "INVALID EVENT WAIT LIST"}, + {CL_INVALID_EVENT, "INVALID EVENT"}, + {CL_INVALID_OPERATION, "INVALID OPERATION"}, + {CL_INVALID_GL_OBJECT, "INVALID GL OBJECT"}, + {CL_INVALID_BUFFER_SIZE, "INVALID BUFFER SIZE"}, + {CL_INVALID_MIP_LEVEL, "INVALID MIP LEVEL"}, + {CL_INVALID_GLOBAL_WORK_SIZE, "INVALID GLOBAL WORK SIZE"}, + {CL_INVALID_PROPERTY, "INVALID PROPERTY"}, + {CL_INVALID_IMAGE_DESCRIPTOR, "INVALID IMAGE DESCRIPTOR"}, + {CL_INVALID_COMPILER_OPTIONS, "INVALID COMPILER OPTIONS"}, + {CL_INVALID_LINKER_OPTIONS, "INVALID LINKER OPTIONS"}, + {CL_INVALID_DEVICE_PARTITION_COUNT, "INVALID DEVICE PARTITION COUNT"}, +}; + +const char *av_opencl_errstr(cl_int status) +{ + int i; + for (i = 0; i < sizeof(opencl_err_msg); i++) { + if (opencl_err_msg[i].err_code == status) + return opencl_err_msg[i].err_str; + } + return "unknown error"; +} + +static void free_device_list(AVOpenCLDeviceList *device_list) +{ + int i, j; + if (!device_list) + return; + for (i = 0; i < device_list->platform_num; i++) { + if (!device_list->platform_node[i]) + continue; + for (j = 0; j < device_list->platform_node[i]->device_num; j++) { + av_freep(&(device_list->platform_node[i]->device_node[j])); + } + av_freep(&device_list->platform_node[i]->device_node); + av_freep(&device_list->platform_node[i]); + } + av_freep(&device_list->platform_node); + device_list->platform_num = 0; +} + +static int get_device_list(AVOpenCLDeviceList *device_list) +{ + cl_int status; + int i, j, k, device_num, total_devices_num,ret = 0; + int *devices_num; + cl_platform_id *platform_ids = NULL; + cl_device_id *device_ids = NULL; + AVOpenCLDeviceNode *device_node = NULL; + status = clGetPlatformIDs(0, NULL, &device_list->platform_num); + if (status != CL_SUCCESS) { + av_log(&opencl_ctx, AV_LOG_ERROR, + "Could not get OpenCL platform ids: %s\n", av_opencl_errstr(status)); + return AVERROR_EXTERNAL; + } + platform_ids = av_mallocz(device_list->platform_num * sizeof(cl_platform_id)); + if (!platform_ids) + return AVERROR(ENOMEM); + status = clGetPlatformIDs(device_list->platform_num, platform_ids, NULL); + if (status != CL_SUCCESS) { + av_log(&opencl_ctx, AV_LOG_ERROR, + "Could not get OpenCL platform ids: %s\n", av_opencl_errstr(status)); + ret = AVERROR_EXTERNAL; + goto end; + } + device_list->platform_node = av_mallocz(device_list->platform_num * sizeof(AVOpenCLPlatformNode *)); + if (!device_list->platform_node) { + ret = AVERROR(ENOMEM); + goto end; + } + devices_num = av_mallocz(sizeof(int) * FF_ARRAY_ELEMS(device_type)); + if (!devices_num) { + ret = AVERROR(ENOMEM); + goto end; + } + for (i = 0; i < device_list->platform_num; i++) { + device_list->platform_node[i] = av_mallocz(sizeof(AVOpenCLPlatformNode)); + if (!device_list->platform_node[i]) { + ret = AVERROR(ENOMEM); + goto end; + } + device_list->platform_node[i]->platform_id = platform_ids[i]; + status = clGetPlatformInfo(platform_ids[i], CL_PLATFORM_VENDOR, + sizeof(device_list->platform_node[i]->platform_name), + device_list->platform_node[i]->platform_name, NULL); + total_devices_num = 0; + for (j = 0; j < FF_ARRAY_ELEMS(device_type); j++) { + status = clGetDeviceIDs(device_list->platform_node[i]->platform_id, + device_type[j], 0, NULL, &devices_num[j]); + total_devices_num += devices_num[j]; + } + device_list->platform_node[i]->device_node = av_mallocz(total_devices_num * sizeof(AVOpenCLDeviceNode *)); + if (!device_list->platform_node[i]->device_node) { + ret = AVERROR(ENOMEM); + goto end; + } + for (j = 0; j < FF_ARRAY_ELEMS(device_type); j++) { + if (devices_num[j]) { + device_ids = av_mallocz(devices_num[j] * sizeof(cl_device_id)); + if (!device_ids) { + ret = AVERROR(ENOMEM); + goto end; + } + status = clGetDeviceIDs(device_list->platform_node[i]->platform_id, device_type[j], + devices_num[j], device_ids, NULL); + if (status != CL_SUCCESS) { + av_log(&opencl_ctx, AV_LOG_WARNING, + "Could not get device ID: %s:\n", av_opencl_errstr(status)); + av_freep(&device_ids); + continue; + } + for (k = 0; k < devices_num[j]; k++) { + device_num = device_list->platform_node[i]->device_num; + device_list->platform_node[i]->device_node[device_num] = av_mallocz(sizeof(AVOpenCLDeviceNode)); + if (!device_list->platform_node[i]->device_node[device_num]) { + ret = AVERROR(ENOMEM); + goto end; + } + device_node = device_list->platform_node[i]->device_node[device_num]; + device_node->device_id = device_ids[k]; + device_node->device_type = device_type[j]; + status = clGetDeviceInfo(device_node->device_id, CL_DEVICE_NAME, + sizeof(device_node->device_name), device_node->device_name, + NULL); + if (status != CL_SUCCESS) { + av_log(&opencl_ctx, AV_LOG_WARNING, + "Could not get device name: %s\n", av_opencl_errstr(status)); + continue; + } + device_list->platform_node[i]->device_num++; + } + av_freep(&device_ids); + } + } + } +end: + av_freep(&platform_ids); + av_freep(&devices_num); + av_freep(&device_ids); + if (ret < 0) + free_device_list(device_list); + return ret; +} + +int av_opencl_get_device_list(AVOpenCLDeviceList **device_list) +{ + int ret = 0; + *device_list = av_mallocz(sizeof(AVOpenCLDeviceList)); + if (!(*device_list)) { + av_log(&opencl_ctx, AV_LOG_ERROR, "Could not allocate opencl device list\n"); + return AVERROR(ENOMEM); + } + ret = get_device_list(*device_list); + if (ret < 0) { + av_log(&opencl_ctx, AV_LOG_ERROR, "Could not get device list from environment\n"); + free_device_list(*device_list); + av_freep(device_list); + return ret; + } + return ret; +} + +void av_opencl_free_device_list(AVOpenCLDeviceList **device_list) +{ + free_device_list(*device_list); + av_freep(device_list); +} + +int av_opencl_set_option(const char *key, const char *val) +{ + int ret = 0; + LOCK_OPENCL; + if (!opencl_ctx.opt_init_flag) { + av_opt_set_defaults(&opencl_ctx); + opencl_ctx.opt_init_flag = 1; + } + ret = av_opt_set(&opencl_ctx, key, val, 0); + UNLOCK_OPENCL; + return ret; +} + +int av_opencl_get_option(const char *key, uint8_t **out_val) +{ + int ret = 0; + LOCK_OPENCL; + ret = av_opt_get(&opencl_ctx, key, 0, out_val); + UNLOCK_OPENCL; + return ret; +} + +void av_opencl_free_option(void) +{ + /*FIXME: free openclutils context*/ + LOCK_OPENCL; + av_opt_free(&opencl_ctx); + UNLOCK_OPENCL; +} + +AVOpenCLExternalEnv *av_opencl_alloc_external_env(void) +{ + AVOpenCLExternalEnv *ext = av_mallocz(sizeof(AVOpenCLExternalEnv)); + if (!ext) { + av_log(&opencl_ctx, AV_LOG_ERROR, + "Could not malloc external opencl environment data space\n"); + } + return ext; +} + +void av_opencl_free_external_env(AVOpenCLExternalEnv **ext_opencl_env) +{ + av_freep(ext_opencl_env); +} + +int av_opencl_register_kernel_code(const char *kernel_code) +{ + int i, ret = 0; + LOCK_OPENCL; + if (opencl_ctx.kernel_code_count >= MAX_KERNEL_CODE_NUM) { + av_log(&opencl_ctx, AV_LOG_ERROR, + "Could not register kernel code, maximum number of registered kernel code %d already reached\n", + MAX_KERNEL_CODE_NUM); + ret = AVERROR(EINVAL); + goto end; + } + for (i = 0; i < opencl_ctx.kernel_code_count; i++) { + if (opencl_ctx.kernel_code[i].kernel_string == kernel_code) { + av_log(&opencl_ctx, AV_LOG_WARNING, "Same kernel code has been registered\n"); + goto end; + } + } + opencl_ctx.kernel_code[opencl_ctx.kernel_code_count].kernel_string = kernel_code; + opencl_ctx.kernel_code[opencl_ctx.kernel_code_count].is_compiled = 0; + opencl_ctx.kernel_code_count++; +end: + UNLOCK_OPENCL; + return ret; +} + +int av_opencl_create_kernel(AVOpenCLKernelEnv *env, const char *kernel_name) +{ + cl_int status; + int i, ret = 0; + LOCK_OPENCL; + if (strlen(kernel_name) + 1 > AV_OPENCL_MAX_KERNEL_NAME_SIZE) { + av_log(&opencl_ctx, AV_LOG_ERROR, "Created kernel name %s is too long\n", kernel_name); + ret = AVERROR(EINVAL); + goto end; + } + if (!env->kernel) { + if (opencl_ctx.kernel_count >= MAX_KERNEL_NUM) { + av_log(&opencl_ctx, AV_LOG_ERROR, + "Could not create kernel with name '%s', maximum number of kernels %d already reached\n", + kernel_name, MAX_KERNEL_NUM); + ret = AVERROR(EINVAL); + goto end; + } + if (opencl_ctx.program_count == 0) { + av_log(&opencl_ctx, AV_LOG_ERROR, "Program count of OpenCL is 0, can not create kernel\n"); + ret = AVERROR(EINVAL); + goto end; + } + for (i = 0; i < opencl_ctx.program_count; i++) { + env->kernel = clCreateKernel(opencl_ctx.programs[i], kernel_name, &status); + if (status == CL_SUCCESS) + break; + } + if (status != CL_SUCCESS) { + av_log(&opencl_ctx, AV_LOG_ERROR, "Could not create OpenCL kernel: %s\n", av_opencl_errstr(status)); + ret = AVERROR_EXTERNAL; + goto end; + } + opencl_ctx.kernel_count++; + env->command_queue = opencl_ctx.command_queue; + av_strlcpy(env->kernel_name, kernel_name, sizeof(env->kernel_name)); + } +end: + UNLOCK_OPENCL; + return ret; +} + +void av_opencl_release_kernel(AVOpenCLKernelEnv *env) +{ + cl_int status; + LOCK_OPENCL; + if (!env->kernel) + goto end; + status = clReleaseKernel(env->kernel); + if (status != CL_SUCCESS) { + av_log(&opencl_ctx, AV_LOG_ERROR, "Could not release kernel: %s\n", + av_opencl_errstr(status)); + } + 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", av_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", av_opencl_errstr(status)); + return AVERROR_EXTERNAL; + } + } + } + return ret; +} + +static int compile_kernel_file(OpenclContext *opencl_ctx) +{ + cl_int status; + int i, kernel_code_count = 0; + const char *kernel_code[MAX_KERNEL_CODE_NUM] = {NULL}; + size_t kernel_code_len[MAX_KERNEL_CODE_NUM] = {0}; + + for (i = 0; i < opencl_ctx->kernel_code_count; i++) { + if (!opencl_ctx->kernel_code[i].is_compiled) { + kernel_code[kernel_code_count] = opencl_ctx->kernel_code[i].kernel_string; + kernel_code_len[kernel_code_count] = strlen(opencl_ctx->kernel_code[i].kernel_string); + opencl_ctx->kernel_code[i].is_compiled = 1; + kernel_code_count++; + } + } + if (!kernel_code_count) + return 0; + /* create a CL program using the kernel source */ + opencl_ctx->programs[opencl_ctx->program_count] = clCreateProgramWithSource(opencl_ctx->context, + kernel_code_count, + kernel_code, + kernel_code_len, + &status); + if(status != CL_SUCCESS) { + av_log(opencl_ctx, AV_LOG_ERROR, + "Could not create OpenCL program with source code: %s\n", av_opencl_errstr(status)); + return AVERROR_EXTERNAL; + } + if (!opencl_ctx->programs[opencl_ctx->program_count]) { + av_log(opencl_ctx, AV_LOG_ERROR, "Created program is NULL\n"); + return AVERROR_EXTERNAL; + } + 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", av_opencl_errstr(status)); + return AVERROR_EXTERNAL; + } + opencl_ctx->program_count++; + return 0; +} + +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", av_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", av_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", av_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", av_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", av_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", av_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", av_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", av_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", av_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", av_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", av_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", av_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", av_opencl_errstr(status)); + return AVERROR_EXTERNAL; + } + return 0; +} |