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Merge pull request #1800 from RPCS3/heap

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vk: Better VRAM heap selection by memory properties (AMD)
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raven02 2016-06-19 14:32:08 +08:00 committed by GitHub
commit ff0bb52689
1 changed files with 25 additions and 2 deletions
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27
rpcs3/Emu/RSX/VK/VKHelpers.cpp
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@ -43,15 +43,38 @@ namespace vk
result.device_local = VK_MAX_MEMORY_TYPES;
result.host_visible_coherent = VK_MAX_MEMORY_TYPES;
bool host_visible_cached = false;
u32 host_visible_vram_size = 0;
u32 device_local_vram_size = 0;
for (u32 i = 0; i < memory_properties.memoryTypeCount; i++)
{
VkMemoryHeap &heap = memory_properties.memoryHeaps[memory_properties.memoryTypes[i].heapIndex];
bool is_device_local = !!(memory_properties.memoryTypes[i].propertyFlags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
if (is_device_local)
result.device_local = i;
{
if (device_local_vram_size < heap.size)
{
result.device_local = i;
device_local_vram_size = heap.size;
}
}
bool is_host_visible = !!(memory_properties.memoryTypes[i].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
bool is_host_coherent = !!(memory_properties.memoryTypes[i].propertyFlags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
bool is_cached = !!(memory_properties.memoryTypes[i].propertyFlags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT);
if (is_host_coherent && is_host_visible)
result.host_visible_coherent = i;
{
if ((is_cached && !host_visible_cached) ||
(host_visible_vram_size < heap.size))
{
result.host_visible_coherent = i;
host_visible_vram_size = heap.size;
host_visible_cached = is_cached;
}
}
}
if (result.device_local == VK_MAX_MEMORY_TYPES) throw EXCEPTION("GPU doesn't support device local memory");