[Mesa-dev] [PATCH 06/15] anv: add anv_ahw_usage_from_vk_usage helper function

[Tapani Pälli]

Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
---
 src/intel/vulkan/anv_android.c | 31 +++++++++++++++++++++++++++++++
 src/intel/vulkan/anv_private.h |  3 +++
 2 files changed, 34 insertions(+)

diff --git a/src/intel/vulkan/anv_android.c b/src/intel/vulkan/anv_android.c
index 67e9adee73e..d0a20dd85c5 100644
--- a/src/intel/vulkan/anv_android.c
+++ b/src/intel/vulkan/anv_android.c
@@ -201,6 +201,37 @@ anv_GetAndroidHardwareBufferPropertiesANDROID(
    return VK_SUCCESS;
 }
 
+/* Construct ahw usage mask from image usage bits, see
+ * 'AHardwareBuffer Usage Equivalence' in Vulkan spec.
+ */
+uint64_t
+anv_ahw_usage_from_vk_usage(const VkImageCreateFlags vk_create,
+                            const VkImageUsageFlags vk_usage)
+{
+   uint64_t ahw_usage = 0;
+
+   if (vk_usage & VK_IMAGE_USAGE_SAMPLED_BIT)
+      ahw_usage |= AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE;
+
+   if (vk_usage & VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT)
+      ahw_usage |= AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE;
+
+   if (vk_usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
+      ahw_usage |= AHARDWAREBUFFER_USAGE_GPU_COLOR_OUTPUT;
+
+   if (vk_create & VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT)
+      ahw_usage |= AHARDWAREBUFFER_USAGE_GPU_CUBE_MAP;
+
+   if (vk_create & VK_IMAGE_CREATE_PROTECTED_BIT)
+      ahw_usage |= AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT;
+
+   /* No usage bits set - set at least one GPU usage. */
+   if (ahw_usage == 0)
+      ahw_usage = AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE;
+
+   return ahw_usage;
+}
+
 VkResult
 anv_image_from_gralloc(VkDevice device_h,
                        const VkImageCreateInfo *base_info,
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index f7c531f0f8f..bec3c457f68 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -3108,6 +3108,9 @@ VkResult anv_image_from_gralloc(VkDevice device_h,
                                 const VkNativeBufferANDROID *gralloc_info,
                                 const VkAllocationCallbacks *alloc,
                                 VkImage *pImage);
+uint64_t
+anv_ahw_usage_from_vk_usage(const VkImageCreateFlags vk_create,
+                            const VkImageUsageFlags vk_usage);
 #endif
 
 const struct anv_surface *
-- 
2.17.2