Mesa (master): anv: add anv_ahw_usage_from_vk_usage helper function

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Module: Mesa
Branch: master
Commit: 884fc90fdebaad93986c80752df3723b7f8f1392
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=884fc90fdebaad93986c80752df3723b7f8f1392

Author: Tapani Pälli <tapani.palli at intel.com>
Date:   Thu Nov  8 10:02:42 2018 +0200

anv: add anv_ahw_usage_from_vk_usage helper function

v2: rebase to b43f955037c changes

Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>

---

 src/intel/vulkan/anv_android.c       | 31 +++++++++++++++++++++++++++++++
 src/intel/vulkan/anv_android.h       |  2 ++
 src/intel/vulkan/anv_android_stubs.c |  7 +++++++
 3 files changed, 40 insertions(+)

diff --git a/src/intel/vulkan/anv_android.c b/src/intel/vulkan/anv_android.c
index 1288b330a8..7b7e214379 100644
--- a/src/intel/vulkan/anv_android.c
+++ b/src/intel/vulkan/anv_android.c
@@ -215,6 +215,37 @@ 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_android.h b/src/intel/vulkan/anv_android.h
index a27c364471..8d748cecc3 100644
--- a/src/intel/vulkan/anv_android.h
+++ b/src/intel/vulkan/anv_android.h
@@ -34,4 +34,6 @@ VkResult anv_image_from_gralloc(VkDevice device_h,
                                 const VkAllocationCallbacks *alloc,
                                 VkImage *pImage);
 
+uint64_t anv_ahw_usage_from_vk_usage(const VkImageCreateFlags vk_create,
+                                     const VkImageUsageFlags vk_usage);
 #endif /* ANV_ANDROID_H */
diff --git a/src/intel/vulkan/anv_android_stubs.c b/src/intel/vulkan/anv_android_stubs.c
index a6fe5a5e6b..0671d5635e 100644
--- a/src/intel/vulkan/anv_android_stubs.c
+++ b/src/intel/vulkan/anv_android_stubs.c
@@ -32,3 +32,10 @@ anv_image_from_gralloc(VkDevice device_h,
 {
    return VK_ERROR_EXTENSION_NOT_PRESENT;
 }
+
+uint64_t
+anv_ahw_usage_from_vk_usage(const VkImageCreateFlags vk_create,
+                            const VkImageUsageFlags vk_usage)
+{
+   return 0;
+}