mirror of
https://github.com/EduApps-CDG/OpenDX
synced 2024-12-30 09:45:37 +01:00
a87ae8aba4
This is the first step to optimizing buffer updates for applications that frequently invalidate buffers. The goal is to reduce the number of buffer allocations per frame and reduce the cost of invalidation.
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
#include "dxvk_buffer_res.h"
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namespace dxvk {
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DxvkPhysicalBuffer::DxvkPhysicalBuffer(
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const Rc<vk::DeviceFn>& vkd,
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const DxvkBufferCreateInfo& createInfo,
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VkDeviceSize sliceCount,
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DxvkMemoryAllocator& memAlloc,
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VkMemoryPropertyFlags memFlags)
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: m_vkd(vkd),
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m_sliceLength(createInfo.size),
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m_sliceStride(align(createInfo.size, 256)) {
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VkBufferCreateInfo info;
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info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
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info.pNext = nullptr;
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info.flags = 0;
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info.size = m_sliceStride * sliceCount;
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info.usage = createInfo.usage;
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info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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info.queueFamilyIndexCount = 0;
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info.pQueueFamilyIndices = nullptr;
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if (m_vkd->vkCreateBuffer(m_vkd->device(),
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&info, nullptr, &m_handle) != VK_SUCCESS)
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throw DxvkError("DxvkPhysicalBuffer: Failed to create buffer");
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VkMemoryRequirements memReq;
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m_vkd->vkGetBufferMemoryRequirements(
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m_vkd->device(), m_handle, &memReq);
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m_memory = memAlloc.alloc(memReq, memFlags);
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if (m_vkd->vkBindBufferMemory(m_vkd->device(),
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m_handle, m_memory.memory(), m_memory.offset()) != VK_SUCCESS)
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throw DxvkError("DxvkPhysicalBuffer: Failed to bind device memory");
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}
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DxvkPhysicalBuffer::~DxvkPhysicalBuffer() {
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if (m_handle != VK_NULL_HANDLE)
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m_vkd->vkDestroyBuffer(m_vkd->device(), m_handle, nullptr);
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}
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DxvkPhysicalBufferSlice DxvkPhysicalBuffer::slice(uint32_t id) {
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return DxvkPhysicalBufferSlice(this, id * m_sliceStride, m_sliceLength);
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}
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} |