vulkan: add vk_ahb_format_to_image_format

There should be no functional change.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22619>

src/vulkan/runtime/vk_android.c

@@ -61,6 +61,44 @@
 #define AHARDWAREBUFFER_USAGE_GPU_FRAMEBUFFER AHARDWAREBUFFER_USAGE_GPU_COLOR_OUTPUT
 #endif
 
+/* Convert an AHB format to a VkFormat, based on the "AHardwareBuffer Format
+ * Equivalence" table in Vulkan spec.
+ *
+ * Note that this only covers a subset of AHB formats defined in NDK.  Drivers
+ * can support more AHB formats, including private ones.
+ */
+VkFormat
+vk_ahb_format_to_image_format(uint32_t ahb_format)
+{
+   switch (ahb_format) {
+   case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:
+   case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:
+      return VK_FORMAT_R8G8B8A8_UNORM;
+   case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:
+      return VK_FORMAT_R8G8B8_UNORM;
+   case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
+      return VK_FORMAT_R5G6B5_UNORM_PACK16;
+   case AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT:
+      return VK_FORMAT_R16G16B16A16_SFLOAT;
+   case AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM:
+      return VK_FORMAT_A2B10G10R10_UNORM_PACK32;
+   case AHARDWAREBUFFER_FORMAT_D16_UNORM:
+      return VK_FORMAT_D16_UNORM;
+   case AHARDWAREBUFFER_FORMAT_D24_UNORM:
+      return VK_FORMAT_X8_D24_UNORM_PACK32;
+   case AHARDWAREBUFFER_FORMAT_D24_UNORM_S8_UINT:
+      return VK_FORMAT_D24_UNORM_S8_UINT;
+   case AHARDWAREBUFFER_FORMAT_D32_FLOAT:
+      return VK_FORMAT_D32_SFLOAT;
+   case AHARDWAREBUFFER_FORMAT_D32_FLOAT_S8_UINT:
+      return VK_FORMAT_D32_SFLOAT_S8_UINT;
+   case AHARDWAREBUFFER_FORMAT_S8_UINT:
+      return VK_FORMAT_S8_UINT;
+   default:
+      return VK_FORMAT_UNDEFINED;
+   }
+}
+
 /* Construct ahw usage mask from image usage bits, see
  * 'AHardwareBuffer Usage Equivalence' in Vulkan spec.
  */