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VulkanHostDisplay: Use coherent memory type for downloads on Adreno

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Otherwise it spends a ton of CPU time invalidating the buffer.
This commit is contained in:
Connor McLaughlin 2022-10-03 13:13:35 +10:00
parent 4dc3014fcd
commit 6af5a2486c
2 changed files with 39 additions and 34 deletions
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72
src/frontend-common/vulkan_host_display.cpp
View file

@ -253,6 +253,9 @@ bool VulkanHostDisplay::CreateRenderDevice(const WindowInfo& wi, std::string_vie
return false;
}
m_is_adreno = (g_vulkan_context->GetDeviceProperties().vendorID == 0x5143 ||
g_vulkan_context->GetDeviceDriverProperties().driverID == VK_DRIVER_ID_QUALCOMM_PROPRIETARY);
m_window_info = m_swap_chain ? m_swap_chain->GetWindowInfo() : local_wi;
return true;
}
@ -292,40 +295,6 @@ VkRenderPass VulkanHostDisplay::GetRenderPassForDisplay() const
}
}
bool VulkanHostDisplay::CheckStagingBufferSize(u32 required_size)
{
if (m_readback_staging_buffer_size >= required_size)
return true;
DestroyStagingBuffer();
const VkBufferCreateInfo bci = {VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
nullptr,
0u,
required_size,
VK_BUFFER_USAGE_TRANSFER_DST_BIT,
VK_SHARING_MODE_EXCLUSIVE,
0u,
nullptr};
VmaAllocationCreateInfo aci = {};
aci.usage = VMA_MEMORY_USAGE_GPU_TO_CPU;
aci.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT;
aci.preferredFlags = VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
VmaAllocationInfo ai = {};
VkResult res = vmaCreateBuffer(g_vulkan_context->GetAllocator(), &bci, &aci, &m_readback_staging_buffer,
&m_readback_staging_allocation, &ai);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vmaCreateBuffer() failed: ");
return false;
}
m_readback_staging_buffer_map = static_cast<u8*>(ai.pMappedData);
return true;
}
void VulkanHostDisplay::DestroyStagingBuffer()
{
// unmapped as part of the buffer destroy
@ -407,6 +376,41 @@ bool VulkanHostDisplay::DownloadTexture(const void* texture_handle, HostDisplayP
return true;
}
bool VulkanHostDisplay::CheckStagingBufferSize(u32 required_size)
{
if (m_readback_staging_buffer_size >= required_size)
return true;
DestroyStagingBuffer();
const VkBufferCreateInfo bci = {VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
nullptr,
0u,
required_size,
VK_BUFFER_USAGE_TRANSFER_DST_BIT,
VK_SHARING_MODE_EXCLUSIVE,
0u,
nullptr};
VmaAllocationCreateInfo aci = {};
aci.usage = VMA_MEMORY_USAGE_GPU_TO_CPU;
aci.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT;
aci.preferredFlags = m_is_adreno ? (VK_MEMORY_PROPERTY_HOST_CACHED_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) :
VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
VmaAllocationInfo ai = {};
VkResult res = vmaCreateBuffer(g_vulkan_context->GetAllocator(), &bci, &aci, &m_readback_staging_buffer,
&m_readback_staging_allocation, &ai);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vmaCreateBuffer() failed: ");
return false;
}
m_readback_staging_buffer_map = static_cast<u8*>(ai.pMappedData);
return true;
}
bool VulkanHostDisplay::CreateResources()
{
static constexpr char fullscreen_quad_vertex_shader[] = R"(

1
src/frontend-common/vulkan_host_display.h
View file

@ -124,6 +124,7 @@ protected:
VkBuffer m_readback_staging_buffer = VK_NULL_HANDLE;
u8* m_readback_staging_buffer_map = nullptr;
u32 m_readback_staging_buffer_size = 0;
bool m_is_adreno = false;
VkDescriptorSetLayout m_post_process_descriptor_set_layout = VK_NULL_HANDLE;
VkDescriptorSetLayout m_post_process_ubo_descriptor_set_layout = VK_NULL_HANDLE;