int color_buffer_load_from_png(t_color_buffer *buffer, char *filename)
{
if (lodepng_decode24_file(&(buffer->data),&buffer->width,
&buffer->height,filename) == 0)
return 1;
else
return 0;
}
int main(int argc, char * argv[])
{
// Variables
char DeviceName[100] = {'\0'};
ocipContext Context = NULL;
ocipError Error = CL_SUCCESS;
SImage ImageInfo;
void * SourceData = NULL;
void * ResultData = NULL;
ocipImage Source, Result;
// Load source image
unsigned Status = lodepng_decode24_file((unsigned char **) &SourceData, &ImageInfo.Width, &ImageInfo.Height, "lena.png");
if (Status == 0)
{
// Load image from file succeded
ImageInfo.Channels = 3;
ImageInfo.Type = U8;
ImageInfo.Step = ImageInfo.Width * ImageInfo.Channels;
}
else
{
// Load image from file failed
printf("Unable to open file lena.png - using empty image\n");
ImageInfo.Channels = 3;
ImageInfo.Type = U8;
ImageInfo.Width = 512;
ImageInfo.Height = 512;
ImageInfo.Step = ImageInfo.Width * ImageInfo.Channels;
SourceData = malloc(ImageInfo.Step * ImageInfo.Height);
}
// Allocate destination image
ResultData = malloc(ImageInfo.Step * ImageInfo.Height);
// Tell where the .cl files are
ocipSetCLFilesPath("D:/OpenCLIPP/cl-files/");
// Initialize
Error = ocipInitialize(&Context, NULL, CL_DEVICE_TYPE_ALL);
if (Error != CL_SUCCESS)
{
printf("Unable to initialize OpenCL\n");
return Error;
}
// Display device name
ocipGetDeviceName(DeviceName, 100);
printf("Using OpenCL device : %s\n", DeviceName);
// Allocate images on the device
Error = ocipCreateImage(&Source, ImageInfo, SourceData, CL_MEM_READ_ONLY);
Error = ocipCreateImage(&Result, ImageInfo, ResultData, CL_MEM_WRITE_ONLY);
// Prepare to execute a filter
Error = ocipPrepareFilters(Source);
if (Error != CL_SUCCESS)
{
printf("Unable to prepare filters\n");
return Error;
}
Error = ocipGaussianBlur(Source, Result, 6);
// Read Result image from device
Error = ocipReadImage(Result);
// Save result to a file
lodepng_encode24_file("result.png", (unsigned char*) ResultData, ImageInfo.Width, ImageInfo.Height);
// Free images on the device
Error = ocipReleaseImage(Source);
Error = ocipReleaseImage(Result);
// Free images
free(SourceData);
free(ResultData);
// Uninitialize
Error = ocipUninitialize(Context);
if (Error != CL_SUCCESS)
return 1;
printf("Success\n");
return 0;
}