| // Copyright 2022 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_LIB_VULKAN_SWAPCHAIN_VULKAN_UTILS_H_ |
| #define SRC_LIB_VULKAN_SWAPCHAIN_VULKAN_UTILS_H_ |
| |
| #include <vulkan/vulkan.h> |
| |
| namespace image_pipe_swapchain { |
| |
| // Return true if |format| is one of the formats that can be treated as a YUV format. |
| // Currently these include: |
| // - VK_FORMAT_G8B8G8R8_422_UNORM |
| // - VK_FORMAT_G8_B8R8_2PLANE_420_UNORM |
| // - VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM |
| // TODO(https://fxbug.dev/42098808): use of these formats is not enough to assume NV12, |
| // but they're currently the only formats we support at the sampler level. |
| bool IsYuvFormat(VkFormat format); |
| |
| // Given a |usage| field from a |VkImageCreateInfo|, return the |
| // |VkFormatFeatureFlags| required for memory used to store the image. |
| VkFormatFeatureFlags GetFormatFeatureFlagsFromUsage(VkImageUsageFlags usage); |
| |
| } // namespace image_pipe_swapchain |
| |
| #endif // SRC_LIB_VULKAN_SWAPCHAIN_VULKAN_UTILS_H_ |
