/* Fill float vector with random numbers over a range. */
void vecran_float(float *vec, int beg, int end)
{
int i;
float *pntr;
double normalize_float(float *vec, int beg, int end);
double drandom(void);
pntr = vec + beg;
for (i = end - beg + 1; i; i--) {
(*pntr++) = drandom();
}
normalize_float(vec, beg, end);
}
int main(int argc, char *argv[])
{
if (argc == 1)
{
const cl_uint width = 1920;
const cl_uint height = 1080;
const cl_uint numPixels = height * width;
cl_int err = CL_SUCCESS;
float *r = cl_malloc_array(float, numPixels);
float *g = cl_malloc_array(float, numPixels);
float *b = cl_malloc_array(float, numPixels);
float *y = cl_malloc_array(float, numPixels);
float *u = cl_malloc_array(float, numPixels);
float *v = cl_malloc_array(float, numPixels);
cl_uchar *Yp = cl_malloc_array(cl_uchar, numPixels);
cl_uchar *Up = cl_malloc_array(cl_uchar, numPixels);
cl_uchar *Vp = cl_malloc_array(cl_uchar, numPixels);
float bt601[9] = {0.257f, 0.504f, 0.098f, -0.148f, -0.291f, 0.439f, 0.439f, -0.368f, -0.071f};
time_t start, diff;
clock_t c_start, c_diff1, c_diff2;
#ifdef CL_BUILD_RUNTIME
cl_environment_t *pEnv = clCreateEnvironment(KDIR"kernel_yuv.cl",CL_DEVICE_TYPE_GPU,1,notify, CL_ARGS);
#else
cl_environment_t *pEnv = clCreateEnvironmentFromBins(&gKernelBins, notify, CL_ARGS);
#endif
printf("Processing %ux%u => %u pixels\n", width, height, numPixels);
if (pEnv && r && g && b && y && u && v)
{
cl_uint i = 0;
srand((unsigned int)time(NULL));
// initialize the data
for (i = 0; i < numPixels; i++)
{
r[i] = frrand(0.0,1.0); // [0-1]
g[i] = frrand(0.0,1.0); // [0-1]
b[i] = frrand(0.0,1.0); // [0-1]
y[i] = 0.00;
u[i] = 0.00;
v[i] = 0.00;
}
start = time(NULL);
c_start = clock();
err = cl_convert_rgbf_to_yuvf_bt601(pEnv, r, g, b, y, u, v, numPixels);
cl_assert(err == CL_SUCCESS,printf("Error = %d\n",err));
c_diff1 = clock() - c_start;
diff = time(NULL) - start;
printf("With Constants Version Ran in %lu seconds (%lu ticks)\n", diff, c_diff1);
// initialize the data
for (i = 0; i < numPixels; i++)
{
r[i] = frrand(0.0,1.0); // [0-1]
g[i] = frrand(0.0,1.0); // [0-1]
b[i] = frrand(0.0,1.0); // [0-1]
y[i] = 0.00;
u[i] = 0.00;
v[i] = 0.00;
}
start = time(NULL);
c_start = clock();
cl_convert_rgbf_to_yuvf(pEnv, r, g, b, y, u, v, bt601, numPixels);
c_diff2 = clock() - c_start;
diff = time(NULL) - start;
printf("With No Constants Version Ran in %lu seconds (%lu ticks)\n", diff, c_diff2);
normalize_float(y, 16, 235, Yp, numPixels);
normalize_float(u, -128, 128, Up, numPixels);
normalize_float(v, -128, 128, Vp, numPixels);
#ifdef CL_DEBUG
for (i = 0; i < numPixels; i++)
printf("YUV = {0x%02x, 0x%02x, 0x%02x}\n", Yp[i], Up[i], Vp[i]);
#endif
clDeleteEnvironment(pEnv);
}
cl_free(r); cl_free(g); cl_free(b);
cl_free(y); cl_free(u); cl_free(v);
}
else if (argc >= 6)
