| 101 | } |
| 102 | |
| 103 | cl::Context createCLGLContext(const forge::Window &wnd) |
| 104 | { |
| 105 | std::vector<cl::Platform> platforms; |
| 106 | Platform::get(&platforms); |
| 107 | |
| 108 | for (auto platform : platforms) { |
| 109 | std::vector<cl::Device> devices; |
| 110 | |
| 111 | try { |
| 112 | platform.getDevices(CL_DEVICE_TYPE_GPU, &devices); |
| 113 | } catch(const cl::Error &err) { |
| 114 | if (err.err() != CL_DEVICE_NOT_FOUND) { |
| 115 | throw; |
| 116 | } else { |
| 117 | continue; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | for (auto device : devices) { |
| 122 | if (!checkGLInterop(platform, device, wnd)) continue; |
| 123 | #if defined(OS_MAC) |
| 124 | CGLContextObj cgl_current_ctx = CGLGetCurrentContext(); |
| 125 | CGLShareGroupObj cgl_share_group = CGLGetShareGroup(cgl_current_ctx); |
| 126 | |
| 127 | cl_context_properties cps[] = { |
| 128 | CL_CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE, (cl_context_properties)cgl_share_group, |
| 129 | 0 |
| 130 | }; |
| 131 | #elif defined(OS_LNX) |
| 132 | cl_context_properties cps[] = { |
| 133 | CL_GL_CONTEXT_KHR, (cl_context_properties)wnd.context(), |
| 134 | CL_GLX_DISPLAY_KHR, (cl_context_properties)wnd.display(), |
| 135 | CL_CONTEXT_PLATFORM, (cl_context_properties)platform(), |
| 136 | 0 |
| 137 | }; |
| 138 | #else /* OS_WIN */ |
| 139 | cl_context_properties cps[] = { |
| 140 | CL_GL_CONTEXT_KHR, (cl_context_properties)wnd.context(), |
| 141 | CL_WGL_HDC_KHR, (cl_context_properties)wnd.display(), |
| 142 | CL_CONTEXT_PLATFORM, (cl_context_properties)platform(), |
| 143 | 0 |
| 144 | }; |
| 145 | #endif |
| 146 | std::cout << "Platform: " << platform.getInfo<CL_PLATFORM_NAME>() << std::endl; |
| 147 | std::cout << "Device: " << device.getInfo<CL_DEVICE_NAME>() << std::endl; |
| 148 | return cl::Context(device, cps); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | throw std::runtime_error("No CL-GL sharing contexts found"); |
| 153 | } |
| 154 | |
| 155 | cl::CommandQueue queue; |
| 156 | cl::Context context; |