874     VkSurfaceCapabilitiesKHR surfCapabilities;  in demo_prepare_buffers()  local
876         demo->gpu, demo->surface, &surfCapabilities);  in demo_prepare_buffers()
892     if (surfCapabilities.currentExtent.width == 0xFFFFFFFF) {  in demo_prepare_buffers()
899         if (swapchainExtent.width < surfCapabilities.minImageExtent.width) {  in demo_prepare_buffers()
900             swapchainExtent.width = surfCapabilities.minImageExtent.width;  in demo_prepare_buffers()
901         } else if (swapchainExtent.width > surfCapabilities.maxImageExtent.width) {  in demo_prepare_buffers()
902             swapchainExtent.width = surfCapabilities.maxImageExtent.width;  in demo_prepare_buffers()
905         if (swapchainExtent.height < surfCapabilities.minImageExtent.height) {  in demo_prepare_buffers()
906             swapchainExtent.height = surfCapabilities.minImageExtent.height;  in demo_prepare_buffers()
907         } else if (swapchainExtent.height > surfCapabilities.maxImageExtent.height) {  in demo_prepare_buffers()
908             swapchainExtent.height = surfCapabilities.maxImageExtent.height;  in demo_prepare_buffers()
912         swapchainExtent = surfCapabilities.currentExtent;  in demo_prepare_buffers()
913         demo->width = surfCapabilities.currentExtent.width;  in demo_prepare_buffers()
914         demo->height = surfCapabilities.currentExtent.height;  in demo_prepare_buffers()
974     uint32_t desiredNumOfSwapchainImages = surfCapabilities.minImageCount;  in demo_prepare_buffers()
977     if ((surfCapabilities.maxImageCount > 0) &&  in demo_prepare_buffers()
978         (desiredNumOfSwapchainImages > surfCapabilities.maxImageCount)) {  in demo_prepare_buffers()
980         desiredNumOfSwapchainImages = surfCapabilities.maxImageCount;  in demo_prepare_buffers()
984     if (surfCapabilities.supportedTransforms &  in demo_prepare_buffers()
988         preTransform = surfCapabilities.currentTransform;  in demo_prepare_buffers()