opengl: move shaders to its own directory

Change-Id: I9ca5a97ae3ed2472257f468f6751903b458529a7
Reviewed-on: https://gerrit.libreoffice.org/30502
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/vcl/opengl/shaders/combinedFragmentShader.glsl b/vcl/opengl/shaders/combinedFragmentShader.glsl
new file mode 100644
index 000000000000..2515b174f7c1
--- /dev/null
+++ b/vcl/opengl/shaders/combinedFragmentShader.glsl
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#version 130
+
+varying float fade_factor; // 0->1 fade factor used for AA
+varying float multiply;
+
+#ifdef USE_VERTEX_COLORS
+varying vec4 vertex_color;
+#endif
+
+uniform vec4 color;
+
+#define TYPE_NORMAL 0
+#define TYPE_LINE   1
+
+uniform int type;
+
+void main()
+{
+#ifdef USE_VERTEX_COLORS
+    vec4 result = vertex_color;
+#else
+    vec4 result = color;
+#endif
+
+    if (type == TYPE_LINE)
+    {
+        float dist = (1.0 - abs(fade_factor)) * multiply;
+        float alpha = clamp(dist, 0.0, 1.0);
+        result.a = result.a * alpha;
+    }
+
+    gl_FragColor = result;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */