From eb408f324db22bd5ecb4e1262992af21af4c8d8d Mon Sep 17 00:00:00 2001
From: Brandon DeRosier <bdero@google.com>
Date: Tue, 1 Nov 2022 21:01:06 -0700
Subject: [PATCH] [Impeller] Copy shaders lib to output directory
 (flutter/engine#37225)

---
 engine/src/flutter/impeller/compiler/BUILD.gn   |  5 ++++-
 .../impeller/compiler/shader_lib/BUILD.gn       | 10 ++++++++++
 .../compiler/shader_lib/flutter/BUILD.gn        |  8 ++++++++
 .../compiler/shader_lib/impeller/BUILD.gn       | 17 +++++++++++++++++
 4 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 engine/src/flutter/impeller/compiler/shader_lib/BUILD.gn
 create mode 100644 engine/src/flutter/impeller/compiler/shader_lib/flutter/BUILD.gn
 create mode 100644 engine/src/flutter/impeller/compiler/shader_lib/impeller/BUILD.gn

diff --git a/engine/src/flutter/impeller/compiler/BUILD.gn b/engine/src/flutter/impeller/compiler/BUILD.gn
index 4c2b94802ba..85124083210 100644
--- a/engine/src/flutter/impeller/compiler/BUILD.gn
+++ b/engine/src/flutter/impeller/compiler/BUILD.gn
@@ -94,7 +94,10 @@ impeller_component("impellerc") {
 
   sources = [ "impellerc_main.cc" ]
 
-  deps = [ ":compiler_lib" ]
+  deps = [
+    ":compiler_lib",
+    "shader_lib",
+  ]
 
   metadata = {
     entitlement_file_path = [ "impellerc" ]
diff --git a/engine/src/flutter/impeller/compiler/shader_lib/BUILD.gn b/engine/src/flutter/impeller/compiler/shader_lib/BUILD.gn
new file mode 100644
index 00000000000..9317feafc76
--- /dev/null
+++ b/engine/src/flutter/impeller/compiler/shader_lib/BUILD.gn
@@ -0,0 +1,10 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+group("shader_lib") {
+  deps = [
+    "./flutter",
+    "./impeller",
+  ]
+}
diff --git a/engine/src/flutter/impeller/compiler/shader_lib/flutter/BUILD.gn b/engine/src/flutter/impeller/compiler/shader_lib/flutter/BUILD.gn
new file mode 100644
index 00000000000..cf85043ddcd
--- /dev/null
+++ b/engine/src/flutter/impeller/compiler/shader_lib/flutter/BUILD.gn
@@ -0,0 +1,8 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+copy("flutter") {
+  sources = [ "runtime_effect.glsl" ]
+  outputs = [ "$root_out_dir/shader_lib/flutter/{{source_file_part}}" ]
+}
diff --git a/engine/src/flutter/impeller/compiler/shader_lib/impeller/BUILD.gn b/engine/src/flutter/impeller/compiler/shader_lib/impeller/BUILD.gn
new file mode 100644
index 00000000000..5d7e85c6bd0
--- /dev/null
+++ b/engine/src/flutter/impeller/compiler/shader_lib/impeller/BUILD.gn
@@ -0,0 +1,17 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+copy("impeller") {
+  sources = [
+    "blending.glsl",
+    "branching.glsl",
+    "color.glsl",
+    "constants.glsl",
+    "gaussian.glsl",
+    "texture.glsl",
+    "transform.glsl",
+    "types.glsl",
+  ]
+  outputs = [ "$root_out_dir/shader_lib/impeller/{{source_file_part}}" ]
+}