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ctx - max sample usage

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This commit is contained in:
firewire
2026-04-14 18:20:52 -04:00
parent bd6c4523dd
commit f5c4ac0790
2 changed files with 29 additions and 0 deletions
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2
oatmeal/src/ctx.h
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@@ -87,5 +87,7 @@ namespace Oatmeal {
void pickPhysicalDevice(); void pickPhysicalDevice();
bool isPhysicalDeviceSupported(vk::raii::PhysicalDevice device); bool isPhysicalDeviceSupported(vk::raii::PhysicalDevice device);
uint32_t scorePhysicalDevice(vk::raii::PhysicalDevice device); uint32_t scorePhysicalDevice(vk::raii::PhysicalDevice device);
vk::SampleCountFlagBits getMaxUsableSampleCount();
void createLogicalDevice();
}; };
} // namespace Oatmeal } // namespace Oatmeal

27
oatmeal/src/ctx_attachments.cpp Normal file
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@@ -0,0 +1,27 @@
#include "ctx.h"
#include "vulkan/vulkan.hpp"
namespace Oatmeal {
vk::SampleCountFlagBits ctx::getMaxUsableSampleCount() {
vk::PhysicalDeviceProperties physicalDeviceProperties = m_physicalDevice.getProperties();
vk::SampleCountFlags count = physicalDeviceProperties.limits.framebufferColorSampleCounts &
physicalDeviceProperties.limits.framebufferDepthSampleCounts;
if (count & vk::SampleCountFlagBits::e16) {
return vk::SampleCountFlagBits::e16;
}
if (count & vk::SampleCountFlagBits::e8) {
return vk::SampleCountFlagBits::e8;
}
if (count & vk::SampleCountFlagBits::e4) {
return vk::SampleCountFlagBits::e4;
}
if (count & vk::SampleCountFlagBits::e2) {
return vk::SampleCountFlagBits::e2;
}
return vk::SampleCountFlagBits::e1;
}
} // namespace Oatmeal