commit f333922399393609f5bf022a3467b7541bd1ad0f
author Jesse Hall <jessehall@google.com> Mon Jan 18 12:28:00 2016 -0800
committer Jesse Hall <jessehall@google.com> Mon Jan 25 13:49:31 2016 -0800
tree b1333a2565244afeb1fb7db75637dde4c9ed986f
parent 993849ce2f3ebc7f39ed360f10b6874a0b897157

libvulkan: Implement VK_PRESENT_MODE_MAILBOX_KHR

Change-Id: Ibbb11849c7a59236e27af32148ab5c5fb22d9b19
(cherry picked from commit 388e6ab8bc0067f88147e68dd20d5c2b6b1e3213)

vulkan/libvulkan/swapchain.cpp

diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index da843f1..75cabc1 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -332,8 +332,10 @@
              "swapchain re-creation not yet implemented");
     ALOGE_IF(create_info->preTransform != VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR,
              "swapchain preTransform not yet implemented");
-    ALOGE_IF(create_info->presentMode != VK_PRESENT_MODE_FIFO_KHR,
-             "present modes other than FIFO are not yet implemented");
+    ALOGW_IF((create_info->presentMode != VK_PRESENT_MODE_FIFO_KHR ||
+              create_info->presentMode != VK_PRESENT_MODE_MAILBOX_KHR),
+             "swapchain present mode %d not supported",
+             create_info->presentMode);
 
     // -- Configure the native window --
 
@@ -404,6 +406,17 @@
         return VK_ERROR_INITIALIZATION_FAILED;
     }
 
+    err = surface.window->setSwapInterval(
+        surface.window.get(),
+        create_info->presentMode == VK_PRESENT_MODE_MAILBOX_KHR ? 0 : 1);
+    if (err != 0) {
+        // TODO(jessehall): Improve error reporting. Can we enumerate possible
+        // errors and translate them to valid Vulkan result codes?
+        ALOGE("native_window->setSwapInterval failed: %s (%d)", strerror(-err),
+              err);
+        return VK_ERROR_INITIALIZATION_FAILED;
+    }
+
     // -- Allocate our Swapchain object --
     // After this point, we must deallocate the swapchain on error.