1 files changed, 54 insertions, 0 deletions
diff --git a/shaders/gst-gl-text-download-i420-yv12.frag b/shaders/gst-gl-text-download-i420-yv12.frag
new file mode 100644
index 0000000..65fb18d
--- /dev/null
+++ b/shaders/gst-gl-text-download-i420-yv12.frag
@@ -0,0 +1,54 @@
+// [config]
+// expect_result: pass
+// glsl_version: 1.10
+//
+// # NOTE: Config section was auto-generated from file
+// # NOTE: 'glslparser.tests' at git revision
+// # NOTE: 6cc17ae70b70d150aa1751f8e28db7b2a9bd50f0
+// [end config]
+
+/*
+ * GStreamer
+ * Copyright (C) 2007 David A. Schleef <ds@schleef.org>
+ * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
+ * 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 w, h;
+void main(void) {
+  float r,g,b,r2,b2,g2,y,u,v;
+  vec2 nxy=gl_TexCoord[0].xy;
+  vec2 nxy2=mod(2.0*nxy, vec2(w, h));
+  r=texture2DRect(tex,nxy).r;
+  g=texture2DRect(tex,nxy).g;
+  b=texture2DRect(tex,nxy).b;
+  r2=texture2DRect(tex,nxy2).r;
+  g2=texture2DRect(tex,nxy2).g;
+  b2=texture2DRect(tex,nxy2).b;
+  y=0.299011*r + 0.586987*g + 0.114001*b;
+  u=-0.148246*r2 -0.29102*g2 + 0.439266*b2;
+  v=0.439271*r2 - 0.367833*g2 - 0.071438*b2 ;
+  y=0.858885*y + 0.0625;
+  u=u + 0.5;
+  v=v + 0.5;
+  gl_FragData[0] = vec4(y, 0.0, 0.0, 1.0);
+  gl_FragData[1] = vec4(u, 0.0, 0.0, 1.0);
+  gl_FragData[2] = vec4(v, 0.0, 0.0, 1.0);
+}