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Move Vulkan initialization out of example constructor to allow overriding initialization functins (e.g. instance creation)

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This commit is contained in:
saschawillems 2016-12-13 19:59:15 +01:00
parent fac6524564
commit 17e3313b53
2 changed files with 15 additions and 12 deletions
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18
base/vulkanexamplebase.h
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@ -50,8 +50,6 @@ typedef VkPhysicalDeviceFeatures (*PFN_GetEnabledFeatures)();
class VulkanExampleBase
{
private:
// Set to true when example is created with enabled validation layers
bool enableValidation = false;
// Set to true if v-sync will be forced for the swapchain
bool enableVSync = false;
// Device features enabled by the example
@ -59,8 +57,6 @@ private:
VkPhysicalDeviceFeatures enabledFeatures = {};
// fps timer (one second interval)
float fpsTimer = 0.0f;
// Create application wide Vulkan instance
VkResult createInstance(bool enableValidation);
// Get window title with example name, device, et.
std::string getWindowTitle();
/** brief Indicates that the view (position, rotation) has changed and */
@ -72,6 +68,8 @@ private:
// Called if the window is resized and some resources have to be recreatesd
void windowResize();
protected:
// Is true when example is created validation layers enabled
bool enableValidation = false;
// Last frame time, measured using a high performance timer (if available)
float frameTimer = 1.0f;
// Frame counter to display fps
@ -214,7 +212,7 @@ public:
~VulkanExampleBase();
// Setup the vulkan instance, enable required extensions and connect to the physical device (GPU)
void initVulkan(bool enableValidation);
void initVulkan();
#if defined(_WIN32)
void setupConsole(std::string title);
@ -228,6 +226,13 @@ public:
void initxcbConnection();
void handleEvent(const xcb_generic_event_t *event);
#endif
/**
* Create the application wide Vulkan instance
*
* @note Virtual, can be overriden by derived example class for custom instance creation
*/
virtual VkResult createInstance(bool enableValidation);
// Pure virtual render function (override in derived class)
virtual void render() = 0;
// Called when view change occurs
@ -372,6 +377,7 @@ int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLin
{ \
for (size_t i = 0; i < __argc; i++) { VulkanExample::args.push_back(__argv[i]); }; \
vulkanExample = new VulkanExample(); \
vulkanExample->initVulkan(); \
vulkanExample->setupWindow(hInstance, WndProc); \
vulkanExample->initSwapchain(); \
vulkanExample->prepare(); \
@ -406,6 +412,7 @@ static void handleEvent() \
int main(const int argc, const char *argv[]) \
{ \
vulkanExample = new VulkanExample(); \
vulkanExample->initVulkan(); \
vulkanExample->initSwapchain(); \
vulkanExample->prepare(); \
vulkanExample->renderLoop(); \
@ -428,6 +435,7 @@ int main(const int argc, const char *argv[]) \
{ \
for (size_t i = 0; i < argc; i++) { VulkanExample::args.push_back(argv[i]); }; \
vulkanExample = new VulkanExample(); \
vulkanExample->initVulkan(); \
vulkanExample->setupWindow(); \
vulkanExample->initSwapchain(); \
vulkanExample->prepare(); \