joshua/attractor-cl
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Tests the OpenCL part again

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This commit is contained in:
Joshua Moerman 2014-04-28 16:16:25 +02:00
parent dfb1e7aebf
commit 9cf9887a09
1 changed files with 78 additions and 72 deletions
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150
src/main.cpp
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@ -110,15 +110,92 @@ struct App {
}
};
struct CLApp {
void initialize(){
auto context = cl::Context::getDefault();
cout << context << endl;
int main(){
cl_int err = 0;
// build the program
auto KernelSource = slurp("Kernel.cl");
cl::Program program(context, {KernelSource.c_str(), KernelSource.size()}, true, &err);
check(err);
cout << program << endl;
// grab the kernel
KernelOp kernel(program, "square", &err);
check(err);
// create a queue
cl::CommandQueue queue(context, context.getInfo<CL_CONTEXT_DEVICES>().front());
// make a lot of data
constexpr size_t W = 1280 * 1;
constexpr size_t H = 800 * 1;
std::vector<cl_float> input_vector(W*H);
for(int y = 0; y < H; ++y){
for(int x = 0; x < W; ++x){
input_vector[x + W*y] = 10 * ((x / double(W) - 0.5) + 1.3371337*(y / double(H) - 0.5));
}
}
// transfer data into buffers
cl::Buffer input(context, input_vector.begin(), input_vector.end(), false, true);
int r = 20, g = 20, b = 20;
// DO IT (in place)
for(int i = 0; i < r; ++i){
check(kernel(queue, W, H, input, W, input));
}
// read back
queue.finish();
auto red = input_vector;
// DO IT (in place)
for(int i = 0; i < g; ++i){
check(kernel(queue, W, H, input, W, input));
}
// read back
queue.finish();
auto green = input_vector;
// DO IT (in place)
for(int i = 0; i < b; ++i){
check(kernel(queue, W, H, input, W, input));
}
// read back
queue.finish();
auto& blue = input_vector;
// test
cout << "opencl is done" << endl;
png::ostream<> image(W, H, "test.png");
for(int i = 0; i < red.size(); ++i){
image << png::ostream<>::pixel(blue[i], red[i], green[i]);
}
cout << "png is saved" << endl;
}
};
int main() {
App a;
CLApp b;
NSAppWrapper app;
app.create_window({
[&](ContextParameters){
a.initialize();
b.initialize();
},
[&](ContextParameters){
a.draw();
@ -127,77 +204,6 @@ int main(){
});
app.run();
auto context = cl::Context::getDefault();
cout << context << endl;
cl_int err = 0;
// build the program
auto KernelSource = slurp("Kernel.cl");
cl::Program program(context, {KernelSource.c_str(), KernelSource.size()}, true, &err);
check(err);
cout << program << endl;
// grab the kernel
KernelOp kernel(program, "square", &err);
check(err);
// create a queue
cl::CommandQueue queue(context, context.getInfo<CL_CONTEXT_DEVICES>().front());
// make a lot of data
constexpr size_t W = 1280 * 4;
constexpr size_t H = 800 * 4;
std::vector<cl_float> input_vector(W*H);
for(int y = 0; y < H; ++y){
for(int x = 0; x < W; ++x){
input_vector[x + W*y] = 10 * ((x / double(W) - 0.5) + 1.3371337*(y / double(H) - 0.5));
}
}
// transfer data into buffers
cl::Buffer input(context, input_vector.begin(), input_vector.end(), false, true);
int r = 80, g = 40, b = 20;
// DO IT (in place)
for(int i = 0; i < r; ++i){
check(kernel(queue, W, H, input, W, input));
}
// read back
queue.finish();
auto red = input_vector;
// DO IT (in place)
for(int i = 0; i < g; ++i){
check(kernel(queue, W, H, input, W, input));
}
// read back
queue.finish();
auto green = input_vector;
// DO IT (in place)
for(int i = 0; i < b; ++i){
check(kernel(queue, W, H, input, W, input));
}
// read back
queue.finish();
auto& blue = input_vector;
// test
cout << "opencl is done" << endl;
png::ostream<> image(W, H, "test.png");
for(int i = 0; i < red.size(); ++i){
image << png::ostream<>::pixel(blue[i], red[i], green[i]);
}
cout << "png is saved" << endl;
}