Function main

examples/opencl/fractal.cpp:106–165

}

int main(void)
{
    try {

        /*
        * First Forge call should be a window creation call
        * so that necessary OpenGL context is created for any
        * other forge::* object to be created successfully
        */
        forge::Window wnd(DIMX, DIMY, "Fractal Demo");
        wnd.makeCurrent();

        /* Create an image object which creates the necessary
        * textures and pixel buffer objects to hold the image
        * */
        forge::Image img(DIMX, DIMY, FG_RGBA, forge::u8);

        /*
         * Helper function to create a CLGL interop context.
         * This function checks for if the extension is available
         * and creates the context on the appropriate device.
         * Note: context and queue are defined in cl_helpers.h
         */
        context = createCLGLContext(wnd);
        Device device = context.getInfo<CL_CONTEXT_DEVICES>()[0];
        queue = CommandQueue(context, device);

        /* copy your data into the pixel buffer object exposed by
         * forge::Image class and then proceed to rendering.
         * To help the users with copying the data from compute
         * memory to display memory, Forge provides copy headers
         * along with the library to help with this task
         */
        cl::Buffer devOut(context, CL_MEM_READ_WRITE, IMG_SIZE);

        kernel(devOut, queue);

        GfxHandle* handle = 0;

        // create GL-CPU interop buffer
        createGLBuffer(&handle, img.pixels(), FORGE_IMAGE_BUFFER);

        // copy the data from compute buffer to graphics buffer
        copyToGLBuffer(handle, (ComputeResourceHandle)devOut(), img.size());

        do {
            wnd.draw(img);
        } while(!wnd.close());

        // destroy GL-CPU Interop buffer
        releaseGLBuffer(handle);

    }catch (forge::Error err) {
        std::cout << err.what() << "(" << err.err() << ")" << std::endl;
    } catch (cl::Error err) {
        std::cout << err.what() << "(" << err.err() << ")" << std::endl;
    }