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project/fm_viewer/fav/shaders/packed.f.glsl

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+/******************************************************************************
+    QtAV:  Multimedia framework based on Qt and FFmpeg
+    Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
+
+*   This file is part of QtAV
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+******************************************************************************/
+
+uniform sampler2D u_Texture0;
+varying vec2 v_TexCoords0;
+uniform mat4 u_colorMatrix;
+uniform float u_opacity;
+uniform mat4 u_c;
+/***User header code***%userHeader%***/
+/***User sampling function here***%userSample%***/
+#ifndef USER_SAMPLER
+vec4 sample2d(sampler2D tex, vec2 pos, int plane)
+{
+    return texture(tex, pos);
+}
+#endif
+
+void main() {
+    vec4 c = sample2d(u_Texture0, v_TexCoords0, 0);
+    c = u_c * c;
+#ifndef HAS_ALPHA
+    c.a = 1.0; // before color mat transform!
+#endif //HAS_ALPHA
+#ifdef XYZ_GAMMA
+    c.rgb = pow(c.rgb, vec3(2.6));
+#endif // XYZ_GAMMA
+    c = u_colorMatrix * c;
+#ifdef XYZ_GAMMA
+    c.rgb = pow(c.rgb, vec3(1.0/2.2));
+#endif //XYZ_GAMMA
+    gl_FragColor = clamp(c, 0.0, 1.0) * u_opacity;
+    /***User post processing here***%userPostProcess%***/
+}