long *najdi_odstavec(int odstavec)
{
long *d;
int i;
d=odstavce;
for(i=0;i<pocet && *d!=odstavec;i++) d+=2;
if (i==pocet)
{
char s[50];
sprintf(s,"Can't find paragraph num %d",odstavec);
dlg_error(s);
}
return d;
}
int main()
{
constexpr auto width = 1200u;
constexpr auto height = 800u;
// init ny app
auto& backend = ny::Backend::choose();
if(!backend.vulkan()) {
dlg_error("ny backend has no vulkan support!");
return 0;
}
auto ac = backend.createAppContext();
// basic vpp init
auto iniExtensions = ac->vulkanExtensions();
iniExtensions.push_back(VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
vk::ApplicationInfo appInfo ("vpp-intro", 1, "vpp", 1, VK_API_VERSION_1_0);
vk::InstanceCreateInfo instanceInfo;
instanceInfo.pApplicationInfo = &appInfo;
instanceInfo.enabledExtensionCount = iniExtensions.size();
instanceInfo.ppEnabledExtensionNames = iniExtensions.data();
#ifdef WithLayers
constexpr auto layer = "VK_LAYER_LUNARG_standard_validation";
instanceInfo.enabledLayerCount = 1;
instanceInfo.ppEnabledLayerNames = &layer;
#endif
vpp::Instance instance(instanceInfo);
#ifdef WithLayers
vpp::DebugCallback debugCallback(instance);
#endif
// ny init
auto run = true;
auto listener = MyWindowListener {};
listener.run = &run;
auto vkSurface = vk::SurfaceKHR {};
auto ws = ny::WindowSettings {};
ws.surface = ny::SurfaceType::vulkan;
ws.listener = &listener;
ws.size = {width, height};
ws.vulkan.instance = (VkInstance) instance.vkHandle();
ws.vulkan.storeSurface = &(std::uintptr_t&) (vkSurface);
auto wc = ac->createWindowContext(ws);
// further vpp init
const vpp::Queue* presentQueue;
vpp::Device device(instance, vkSurface, presentQueue);
vpp::Swapchain swapchain(device, vkSurface, {width, height}, {});
// vvg setup
auto nvgContext = vvg::createContext(swapchain);
auto font = nvgCreateFont(nvgContext, "sans", "Roboto-Regular.ttf");
using Clock = std::chrono::high_resolution_clock;
auto lastFrameTimer = Clock::now();
unsigned int framesCount = 0;
std::string fpsString = "420 fps";
// main loop
while(run) {
if(!ac->dispatchEvents())
break;
nvgBeginFrame(nvgContext, width, height, width / (float) height);
nvgBeginPath(nvgContext);
nvgMoveTo(nvgContext, 10, 10);
nvgLineTo(nvgContext, 10, 400);
nvgLineTo(nvgContext, 100, 400);
nvgQuadTo(nvgContext, 100, 50, 400, 120);
nvgLineTo(nvgContext, 450, 10);
nvgClosePath(nvgContext);
nvgFillColor(nvgContext, nvgRGBAf(0.5, 0.8, 0.7, 1.0));
nvgFill(nvgContext);
nvgBeginPath(nvgContext);
nvgFontFaceId(nvgContext, font);
nvgFontSize(nvgContext, 100.f);
nvgFontBlur(nvgContext, .8f);
nvgFillColor(nvgContext, nvgRGBAf(1.0, 1.0, 1.0, 1.0));
nvgTextBox(nvgContext, 200, 200, width - 200, "Hello Vulkan Vector Graphics World", nullptr);
nvgFontSize(nvgContext, 30.f);
nvgFontBlur(nvgContext, .2f);
nvgText(nvgContext, 10, height - 20, fpsString.c_str(), nullptr);
nvgBeginPath(nvgContext);
nvgRect(nvgContext, 700, 400, 300, 300);
nvgPathWinding(nvgContext, NVG_HOLE);
nvgRect(nvgContext, 750, 450, 50, 50);
// auto paint = nvgRadialGradient(nvgContext, 750, 425,20, 50, nvgRGB(0, 0, 200), nvgRGB(200, 200, 0));
// auto paint = nvgRadialGradient(nvgContext, 0.0, 0.0, 0.2, 100.0, nvgRGB(0, 0, 200), nvgRGB(200, 200, 0));
auto paint = nvgLinearGradient(nvgContext, 700, 400, 800, 450, nvgRGB(0, 0, 200), nvgRGB(200, 200, 0));
nvgFillPaint(nvgContext, paint);
// nvgFillColor(nvgContext, nvgRGBA(200, 200, 0, 200));
nvgClosePath(nvgContext);
nvgFill(nvgContext);
nvgEndFrame(nvgContext);
// only refresh frame timer every second
framesCount++;
if(Clock::now() - lastFrameTimer >= std::chrono::seconds(1)) {
fpsString = std::to_string(framesCount) + " fps";
lastFrameTimer = Clock::now();
framesCount = 0;
}
}
vvg::destroyContext(*nvgContext);
}
