internal PresentModeKhr GetPresentMode(SurfaceKhr surface)
{
PresentModeKhr[] modes = physicalDevice.GetSurfacePresentModesKhr(surface);
//If mailbox is present then go for that, it is basically having 1 frame being displayed
//and multiple frames in the background being rendered to, and also allows to redraw
//those in the background, this allows for things like triple-buffering
for (int i = 0; i < modes.Length; i++)
{
if (modes[i] == PresentModeKhr.Mailbox)
{
return(PresentModeKhr.Mailbox);
}
}
//If mailbox is not supported then we go for Fifo
//Fifo is basically uses 2 frame's, 1 thats being displayed right now and one that is
//being rendered to. When rendering is done but the previous frame is not done being
//displayed then the program has to wait.
//According to spec this must be available on all platforms
return(PresentModeKhr.Fifo);
}
public bool CreateSwapChain(DrunkSpock spock,
int extentX, int extentY)
{
PhysicalDevice phys = mLogical.Parent;
SurfaceKhr surf = spock.GetSurface();
SurfaceCapabilitiesKhr surfCaps = phys.GetSurfaceCapabilitiesKhr(surf);
SurfaceFormatKhr [] surfFormats = phys.GetSurfaceFormatsKhr(surf);
PresentModeKhr [] presModes = phys.GetSurfacePresentModesKhr(surf);
if (surfFormats.Length <= 0 || presModes.Length <= 0)
{
Misc.SafeInvoke(eErrorSpam, "Bad formats or pres modes...");
return(false);
}
mSwapExtent = new Extent2D(extentX, extentY);
int imageCount = surfCaps.MinImageCount + 1;
if (surfCaps.MaxImageCount > 0 && imageCount > surfCaps.MaxImageCount)
{
imageCount = surfCaps.MaxImageCount;
}
SwapchainCreateInfoKhr scci = new SwapchainCreateInfoKhr(
surf, Format.B8G8R8A8UNorm, mSwapExtent,
imageCount, ColorSpaceKhr.SRgbNonlinear, 1,
ImageUsages.ColorAttachment);
scci.ImageSharingMode = SharingMode.Exclusive;
if (presModes.Contains(PresentModeKhr.Mailbox))
{
scci.PresentMode = PresentModeKhr.Mailbox;
}
mSwapChain = mLogical.CreateSwapchainKhr(scci);
if (mSwapChain == null)
{
Misc.SafeInvoke(eErrorSpam, "Create swap chain failed...");
return(false);
}
VulkanCore.Image [] chainImages = mSwapChain.GetImages();
mChainImageViews = new ImageView[chainImages.Length];
for (int i = 0; i < chainImages.Length; i++)
{
ImageSubresourceRange isr = new ImageSubresourceRange(
ImageAspects.Color, 0, 1, 0, 1);
ImageViewCreateInfo ivci = new ImageViewCreateInfo(
mSwapChain.Format, isr);
mChainImageViews[i] = chainImages[i].CreateView(ivci);
}
//descriptor pool stuff
DescriptorPoolSize dps = new DescriptorPoolSize(
DescriptorType.UniformBuffer, chainImages.Length);
DescriptorPoolCreateInfo dpci = new DescriptorPoolCreateInfo();
dpci.PoolSizes = new DescriptorPoolSize[] { dps };
dpci.MaxSets = chainImages.Length;
mDPool = mLogical.CreateDescriptorPool(dpci);
return(true);
}
