commit a800ec96f724121e689b54589e4d73b5f2a93414
author Stephen White <senorblanco@chromium.org> Fri Aug 02 15:04:52 2019 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Aug 02 19:51:02 2019 +0000
tree 938f39d1ebfd40e6f51d60a385041be5d233e993
parent f8e5aadbd424347575948e83a04249799e915b5b

Dawn: implement sk_app window contexts for all backends.

Implement Window contexts for D3D12, Metal and Vulkan, as well as
a base class for all of them (DawnWindowContext).
Implement WSI, swap chains and external textures for all backends.
Add Dawn support to Viewer app.

Change-Id: I9368eae8d43594821aa1edd9fd559c8a9ba30066
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228060
Commit-Queue: Stephen White <senorblanco@chromium.org>
Reviewed-by: Jim Van Verth <jvanverth@google.com>

BUILD.gn

diff --git a/BUILD.gn b/BUILD.gn
index 263313d..0a87f3c 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -2314,6 +2314,10 @@
     ]
     libs = []
 
+    if (skia_use_dawn) {
+      sources += [ "tools/sk_app/DawnWindowContext.cpp" ]
+    }
+
     if (is_android) {
       sources += [
         "tools/sk_app/android/GLWindowContext_android.cpp",
@@ -2331,6 +2335,13 @@
         "tools/sk_app/unix/keysym2ucs.c",
         "tools/sk_app/unix/main_unix.cpp",
       ]
+      if (skia_use_dawn) {
+        if (dawn_enable_vulkan) {
+          sources += [ "tools/sk_app/unix/DawnVulkanWindowContext_unix.cpp" ]
+          defines = [ "VK_USE_PLATFORM_XCB_KHR" ]
+          libs += [ "X11-xcb" ]
+        }
+      }
       libs += [
         "GL",
         "X11",
@@ -2345,6 +2356,11 @@
       if (skia_use_angle) {
         sources += [ "tools/sk_app/win/ANGLEWindowContext_win.cpp" ]
       }
+      if (skia_use_dawn) {
+        if (dawn_enable_d3d12) {
+          sources += [ "tools/sk_app/win/DawnD3D12WindowContext_win.cpp" ]
+        }
+      }
     } else if (is_mac) {
       sources += [
         "tools/sk_app/mac/GLWindowContext_mac.mm",
@@ -2352,6 +2368,11 @@
         "tools/sk_app/mac/Window_mac.mm",
         "tools/sk_app/mac/main_mac.mm",
       ]
+      if (skia_use_dawn) {
+        if (dawn_enable_metal) {
+          sources += [ "tools/sk_app/mac/DawnMTLWindowContext_mac.mm" ]
+        }
+      }
       libs += [
         "QuartzCore.framework",
         "Cocoa.framework",