跳转至

vkBindBufferMemory

函数原型

1
2
3
4
5
VkResult vkBindBufferMemory(
    VkDevice                                    device,
    VkBuffer                                    buffer,
    VkDeviceMemory                              memory,
    VkDeviceSize                                memoryOffset);

描述

将显存绑定到buffer对象。

参数

  • device : buffer和memory所在的逻辑设备。
  • buffer : 将要绑定memory的buffer对象。
  • memory : VkDeviceMemory对象,描述了要绑定的设备内存。
  • memoryOffset : 绑定的内存起始偏移量。

返回值

  • VK_SUCCESS : 成功绑定memory到buffer。
  • 其他 : 绑定失败。

代码示例

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
void CreateBuffer(VkDeviceSize size, VkDevice device, VkBuffer& buffer, VkDeviceMemory& bufferMemory)
{
    VkBufferCreateInfo bufferInfo{};
    bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
    bufferInfo.size = size;
    bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
    bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;

    if (vkCreateBuffer(device, &bufferInfo, nullptr, &buffer) != VK_SUCCESS) {
        throw std::runtime_error("failed to create buffer!");
    }

    VkMemoryRequirements memRequirements;
    vkGetBufferMemoryRequirements(device, buffer, &memRequirements);

    VkMemoryAllocateInfo allocInfo{};
    allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
    allocInfo.allocationSize = memRequirements.size;
    allocInfo.memoryTypeIndex = 0;

    if (vkAllocateMemory(device, &allocInfo, nullptr, &bufferMemory) != VK_SUCCESS) {
        throw std::runtime_error("failed to allocate buffer memory!");
    }

    vkBindBufferMemory(device, buffer, bufferMemory, 0);
}