From 63c807b90290933fb2a0796d9b5adc5c455a5b4e Mon Sep 17 00:00:00 2001
From: itsmattkc <34096995+itsmattkc@users.noreply.github.com>
Date: Fri, 4 Mar 2022 15:31:39 -0800
Subject: [PATCH] implement glsl hack for corner pin

---
 .../distort/cornerpin/cornerpindistortnode.cpp     | 14 ++++++++++++--
 app/shaders/cornerpin.frag                         |  2 --
 app/shaders/cornerpin.vert                         |  2 --
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/app/node/distort/cornerpin/cornerpindistortnode.cpp b/app/node/distort/cornerpin/cornerpindistortnode.cpp
index b1e9b573e..327c7ccf7 100644
--- a/app/node/distort/cornerpin/cornerpindistortnode.cpp
+++ b/app/node/distort/cornerpin/cornerpindistortnode.cpp
@@ -97,8 +97,18 @@ void CornerPinDistortNode::Value(const NodeValueRow &value, const NodeGlobals &g
 ShaderCode CornerPinDistortNode::GetShaderCode(const QString &shader_id) const
 {
   Q_UNUSED(shader_id)
-  return ShaderCode(FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/cornerpin.frag")),
-                    FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/cornerpin.vert")));
+  QString frag = FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/cornerpin.frag"));
+  QString vert = FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/cornerpin.vert"));
+
+  // HACK: No good, very bad hack
+#ifndef Q_OS_MAC
+  frag.prepend(QStringLiteral("#version 130"));
+  vert.prepend(QStringLiteral("#version 130"));
+#else
+  vert.prepend(QStringLiteral("#extension GL_EXT_gpu_shader4 : require"));
+#endif
+
+  return ShaderCode(frag, vert);
 }
 
 QPointF CornerPinDistortNode::ValueToPixel(int value, const NodeValueRow& row, const QVector2D &resolution) const
diff --git a/app/shaders/cornerpin.frag b/app/shaders/cornerpin.frag
index 84b9ece6b..7dd7e3306 100644
--- a/app/shaders/cornerpin.frag
+++ b/app/shaders/cornerpin.frag
@@ -1,5 +1,3 @@
-#version 130
-
 // Input texture
 uniform sampler2D ove_maintex;
 uniform sampler2D tex_in;
diff --git a/app/shaders/cornerpin.vert b/app/shaders/cornerpin.vert
index 21c2b0527..1eadf95fe 100644
--- a/app/shaders/cornerpin.vert
+++ b/app/shaders/cornerpin.vert
@@ -1,5 +1,3 @@
-#version 130
-
 uniform bool perspective_in;
 uniform vec2 top_left_in;
 uniform vec2 top_right_in;