Add shaders from GStreamer as parser tests.

These were hand-copied from commit
7edf5771853fa34099b07de1c2b18e03db9048dd of gst-plugins-gl.  C strings
were converted to standalone files, with adjustment of whitespace.
All changes other than string conversion and whitespace are annotated
with a comment mentioning piglit.

Mesa fails on the array constructors for 3 of them, while GLSL2 fails on many
of them due to lack of builtin functions but not due to array constructors.

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/glslparsertest/glsl2/gst-gl-twirl.frag b/tests/glslparsertest/glsl2/gst-gl-twirl.frag
new file mode 100644
index 000000000..ecf0523aa
--- /dev/null
+++ b/tests/glslparsertest/glsl2/gst-gl-twirl.frag
@@ -0,0 +1,37 @@
+/*
+ * GStreamer
+ * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#extension GL_ARB_texture_rectangle : enable
+uniform sampler2DRect tex;
+uniform float width, height;
+void main () {
+  vec2 tex_size = vec2 (width, height);
+  vec2 texturecoord = gl_TexCoord[0].xy;
+  vec2 normcoord;
+  normcoord = texturecoord / tex_size - 1.0;
+  float r =  length (normcoord);
+  float phi = atan (normcoord.y, normcoord.x);
+  phi += (1.0 - smoothstep (-0.6, 0.6, r)) * 4.8;
+  normcoord.x = r * cos(phi);
+  normcoord.y = r * sin(phi);
+  texturecoord = (normcoord + 1.0) * tex_size;
+  vec4 color = texture2DRect (tex, texturecoord);
+  gl_FragColor = color;
+}