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opencl: Show up to four OpenCL platforms

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The old code only allowed one platform.
Add also strict error handling.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2016-11-01 20:05:21 +01:00
parent 02a6970cf3
commit b262136b45
1 changed files with 22 additions and 16 deletions
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38
api/tesseractmain.cpp
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@ -63,25 +63,31 @@ void PrintVersionInfo() {
lept_free(versionStrP);
#ifdef USE_OPENCL
cl_platform_id platform;
cl_platform_id platform[4];
cl_uint num_platforms;
cl_device_id devices[2];
cl_uint num_devices;
char info[256];
int i;
printf(" OpenCL info:\n");
clGetPlatformIDs(1, &platform, &num_platforms);
printf(" Found %d platforms.\n", num_platforms);
clGetPlatformInfo(platform, CL_PLATFORM_NAME, 256, info, 0);
printf(" Platform name: %s.\n", info);
clGetPlatformInfo(platform, CL_PLATFORM_VERSION, 256, info, 0);
printf(" Version: %s.\n", info);
clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, 2, devices, &num_devices);
printf(" Found %d devices.\n", num_devices);
for (i = 0; i < num_devices; ++i) {
clGetDeviceInfo(devices[i], CL_DEVICE_NAME, 256, info, 0);
printf(" Device %d name: %s.\n", i + 1, info);
if (clGetPlatformIDs(4, platform, &num_platforms) == CL_SUCCESS) {
printf(" Found %u platform(s).\n", num_platforms);
for (unsigned n = 0; n < num_platforms; n++) {
char info[256];
if (clGetPlatformInfo(platform[n], CL_PLATFORM_NAME, 256, info, 0) == CL_SUCCESS) {
printf(" Platform %u name: %s.\n", n + 1, info);
}
if (clGetPlatformInfo(platform[n], CL_PLATFORM_VERSION, 256, info, 0) == CL_SUCCESS) {
printf(" Version: %s.\n", info);
}
cl_device_id devices[2];
cl_uint num_devices;
if (clGetDeviceIDs(platform[n], CL_DEVICE_TYPE_ALL, 2, devices, &num_devices) == CL_SUCCESS) {
printf(" Found %u device(s).\n", num_devices);
for (unsigned i = 0; i < num_devices; ++i) {
if (clGetDeviceInfo(devices[i], CL_DEVICE_NAME, 256, info, 0) == CL_SUCCESS) {
printf(" Device %u name: %s.\n", i + 1, info);
}
}
}
}
}
#endif
}