xdl_int XdevLOpenGLWGL::create(XdevLWindow* window) {
if(window == NULL) {
XDEVL_MODULE_ERROR("Parameter invalid.\n");
return ERR_ERROR;
}
m_window = window;
m_wnd = static_cast<HWND>(m_window->getInternal(XdevLInternalName("WIN32_HWND")));
if ( m_wnd == NULL) {
XDEVL_MODULE_ERROR("Get WIN32_HWND failed.\n");
return ERR_ERROR;
}
if (initOpenGL() == ERR_ERROR) {
XDEVL_MODULE_ERROR("Failed to initialize OpenGL.\n");
return ERR_ERROR;
}
// Set vertical syncronisation.
setVSync(getVSync());
// TODO: This shouldn't be done maybe because it changes the initial state of the OpenGL context.
glClearColor(1.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
SwapBuffers(m_DC);
return ERR_OK;
}
int XdevLOpenGLContextGLX::create(XdevLWindow* window, XdevLOpenGLContext* shareContext) {
XDEVL_ASSERT(m_display == nullptr, "XdevLOpenGLContextGLX already created.");
if(nullptr != shareContext) {
m_shareContext = static_cast<XdevLOpenGLContextGLX*>(shareContext);
}
window->getDescriptor().registerDependency(this);
m_display = static_cast<Display*>(window->getInternal(XdevLInternalName("X11_DISPLAY")));
if(nullptr == m_display) {
XDEVL_MODULE_ERROR("Could not get native X11 display information.\n");
return RET_FAILED;
}
m_window = (Window)(window->getInternal(XdevLInternalName("X11_WINDOW")));
if(None == m_window) {
XDEVL_MODULE_ERROR("Could not get native X11 window information.\n");
return RET_FAILED;
}
if(glXQueryVersion(m_display, &m_glxMajorVersion, &m_glxMinorVersion) == False) {
XDEVL_MODULE_ERROR("glXQueryVersion failed.\n");
return RET_FAILED;
}
if(initOpenGL(m_display, m_window) == RET_FAILED) {
XDEVL_MODULE_ERROR("Failed to initialize OpenGL.\n");
return RET_FAILED;
}
if(glXIsDirect(m_display, m_glxContext)) {
XDEVL_MODULE_INFO("Direct Rendering supported.\n");
} else {
XDEVL_MODULE_WARNING("Direct Rendering not supported.\n");
}
setVSync(getVSync());
return RET_SUCCESS;
}
int XdevLSwapChainVulkan::createSurface(IPXdevLWindow window) {
Display* display = static_cast<Display*>(window->getInternal(XdevLInternalName("X11_DISPLAY")));
if(nullptr == display) {
XDEVL_MODULEX_ERROR(XdevLSwapChainVulkan, "Could not get native X11 display information.\n");
return RET_FAILED;
}
Window x11window = (Window)(window->getInternal(XdevLInternalName("X11_WINDOW")));
if(None == x11window) {
XDEVL_MODULEX_ERROR(XdevLSwapChainVulkan, "Could not get native X11 window information.\n");
return RET_FAILED;
}
//
// Get the Surface extensions.
//
VkResult result;
#if defined(_WIN32)
VkWin32SurfaceCreateInfoKHR surfaceCreateInfo;
surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
surfaceCreateInfo.hinstance = (HINSTANCE)platformHandle; // provided by the platform code
surfaceCreateInfo.hwnd = (HWND)platformWindow; // provided by the platform code
result = vkCreateWin32SurfaceKHR(instance, &surfaceCreateInfo, nullptr, &m_surface);
#elif defined(__ANDROID__)
VkAndroidSurfaceCreateInfoKHR surfaceCreateInfo;
surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
surfaceCreateInfo.window = window; // provided by the platform code
result = vkCreateAndroidSurfaceKHR(instance, &surfaceCreateInfo, nullptr, &m_surface);
#else
VkXcbSurfaceCreateInfoKHR surfaceCreateInfo = {
VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR,
nullptr,
0,
XGetXCBConnection(display),
(xcb_window_t)x11window
};
result = vkCreateXcbSurfaceKHR(m_instance, &surfaceCreateInfo, nullptr, &m_surface);
#endif
if(result != VK_SUCCESS) {
std::cerr << "Failed to create Vulkan surface: " << vkVkResultToString(result) << std::endl;
return 1;
}
uint32_t queueCount;
vkGetPhysicalDeviceQueueFamilyProperties(m_physicalDevice, &queueCount, nullptr);
std::vector<VkQueueFamilyProperties> queueProps(queueCount);
vkGetPhysicalDeviceQueueFamilyProperties(m_physicalDevice, &queueCount, queueProps.data());
// Will be used to present the swap chain images to the windowing system
std::vector<VkBool32> supportsPresent(queueCount);
for(uint32_t i = 0; i < queueCount; i++) {
fpGetPhysicalDeviceSurfaceSupportKHR(m_physicalDevice, i, m_surface, &supportsPresent[i]);
}
// Search for a graphics and a present queue in the array of queue
// families, try to find one that supports both
uint32_t graphicsQueueNodeIndex = UINT32_MAX;
uint32_t presentQueueNodeIndex = UINT32_MAX;
for(uint32_t i = 0; i < queueCount; i++) {
if((queueProps[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) != 0) {
if(graphicsQueueNodeIndex == UINT32_MAX) {
graphicsQueueNodeIndex = i;
}
if(supportsPresent[i] == VK_TRUE) {
graphicsQueueNodeIndex = i;
presentQueueNodeIndex = i;
break;
}
}
}
if(presentQueueNodeIndex == UINT32_MAX) {
// If there's no queue that supports both present and graphics
// try to find a separate present queue
for(uint32_t i = 0; i < queueCount; ++i) {
if(supportsPresent[i] == VK_TRUE) {
presentQueueNodeIndex = i;
break;
}
}
}
// Exit if either a graphics or a presenting queue hasn't been found
if(graphicsQueueNodeIndex == UINT32_MAX || presentQueueNodeIndex == UINT32_MAX) {
return 1;
}
// todo : Add support for separate graphics and presenting queue
if(graphicsQueueNodeIndex != presentQueueNodeIndex) {
return 1;
}
m_queueNodeIndex = graphicsQueueNodeIndex;
// Get list of supported surface formats
uint32_t formatCount;
result = vkGetPhysicalDeviceSurfaceFormatsKHR(m_physicalDevice, m_surface, &formatCount, nullptr);
if(VK_SUCCESS != result) {
std::cerr << "vkGetPhysicalDeviceSurfaceFormatsKHR failed: " << vkVkResultToString(result) << std::endl;
return 1;
}
assert(formatCount > 0);
std::vector<VkSurfaceFormatKHR> surfaceFormats(formatCount);
result = vkGetPhysicalDeviceSurfaceFormatsKHR(m_physicalDevice, m_surface, &formatCount, surfaceFormats.data());
assert(!result);
// If the surface format list only includes one entry with VK_FORMAT_UNDEFINED,
// there is no preferered format, so we assume VK_FORMAT_B8G8R8A8_UNORM
if((formatCount == 1) && (surfaceFormats[0].format == VK_FORMAT_UNDEFINED)) {
m_colorFormat = VK_FORMAT_B8G8R8A8_UNORM;
} else {
// Always select the first available color format
// If you need a specific format (e.g. SRGB) you'd need to
// iterate over the list of available surface format and
// check for it's presence
m_colorFormat = surfaceFormats[0].format;
}
m_colorSpace = surfaceFormats[0].colorSpace;
return 0;
}