From: Chad Versace <chad.versace@intel.com>
Date: Thu, 28 Jan 2016 14:28:01 +0000 (-0800)
Subject: anv/image: Update usage flags for multisample images
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2bab3cd681d1201556f23043deb24681c6d0f3e3;p=mesa.git

anv/image: Update usage flags for multisample images

Meta resolves multisample images by binding them as textures. Therefore
we must add VK_IMAGE_USAGE_SAMPLED_BIT.
---

diff --git a/src/vulkan/anv_image.c b/src/vulkan/anv_image.c
index febfaa42539..6cc5700c21e 100644
--- a/src/vulkan/anv_image.c
+++ b/src/vulkan/anv_image.c
@@ -158,6 +158,12 @@ anv_image_get_full_usage(const VkImageCreateInfo *info)
 {
    VkImageUsageFlags usage = info->usage;
 
+   if (info->samples > 1 &&
+       (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)) {
+      /* Meta will resolve the image by binding it as a texture. */
+      usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
+   }
+
    if (usage & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) {
       /* Meta will transfer from the image by binding it as a texture. */
       usage |= VK_IMAGE_USAGE_SAMPLED_BIT;