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vkGetPhysicalDeviceFormatProperties

函数原型​

void vkGetPhysicalDeviceFormatProperties(
    VkPhysicalDevice                            physicalDevice,
    VkFormat                                    format,
    VkFormatProperties*                         pFormatProperties);

描述​

查询物理设备支持的格式属性。

参数​

  • physicalDevice : 查询的物理设备。
  • format : 查询的格式。
  • pFormatProperties : VkFormatProperties 结构体指针，返回物理设备支持的格式属性。

补充​

VkFormatProperties 结构体定义：

typedef struct VkFormatProperties {
    VkFormatFeatureFlags    linearTilingFeatures;
    VkFormatFeatureFlags    optimalTilingFeatures;
    VkFormatFeatureFlags    bufferFeatures;
} VkFormatProperties;

返回值​

无

代码示例​

VkImageCreateInfo image_info = {};
const VkFormat depth_format = VK_FORMAT_D16_UNORM;
VkFormatProperties props;
vkGetPhysicalDeviceFormatProperties(gpus[0], depth_format, &props);
if (props.linearTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT) {
	image_info.tiling = VK_IMAGE_TILING_LINEAR;
} else if (props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT) {
	image_info.tiling = VK_IMAGE_TILING_OPTIMAL;
}