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[247/906] Import xray effect
Add xray effect. Maps luma to a negative, slightly cyan tinted, curve, applies some light gaussian blur and multiplies it with its sobel edges. Not sure about the name, likely to change. Probably still needs some tuning.
This commit is contained in:
Filippo Argiolas
Matthew Waters
parent
5f8cc769b7
commit
0ac54fdc55
6 changed files with 269 additions and 3 deletions
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@ -43,9 +43,11 @@ libgstopengl_la_SOURCES = \
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effects/gstgleffectbulge.c \
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effects/gstgleffectsquare.c \
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effects/gstgleffectlumatocurve.c \
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effects/gstgleffectlumatocurve.h \
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effects/gstgleffectrgbtocurve.c \
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effects/gstgleffectsin.c \
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effects/gstgleffectglow.c
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effects/gstgleffectglow.c \
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effects/gstgleffectxray.c
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if HAVE_GDKPIXBUF
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libgstopengl_la_SOURCES += gstglpixbufoverlay.c \
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@ -18,8 +18,8 @@
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_GL_EFFECTS_TEXTURES__
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#define __GST_GL_EFFECTS_TEXTURES__
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#ifndef __GST_GL_EFFECTS_TEXTURES_H__
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#define __GST_GL_EFFECTS_TEXTURES_H__
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struct _GstGLEffectsCurve {
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@ -171,4 +171,42 @@ static const GstGLEffectsCurve sepia_curve = {
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"\352\376\375\353\376\376\355\376\376\356\376\376\357\377\377\357",
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};
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static const GstGLEffectsCurve xray_curve = {
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256, 1, 3,
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"\377\377\377\377\377\377\376\376\376\375\375\376\374\375\375\373\374\375"
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"\372\374\374\371\374\374\370\373\373\366\373\372\366\372\372\365\372\371"
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"\363\371\371\363\371\370\362\370\370\360\370\367\360\367\366\357\367\365"
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"\356\366\365\355\366\364\353\365\363\353\365\363\352\364\362\351\363\362"
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"\347\363\361\346\362\361\345\362\361\344\362\360\343\361\357\343\361\356"
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"\342\360\356\341\360\356\340\357\355\336\356\354\336\356\354\335\355\353"
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"\334\355\353\333\355\352\331\354\351\331\353\351\330\353\350\327\353\350"
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"\325\352\347\325\351\347\324\350\346\323\350\345\322\347\344\321\347\344"
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"\320\347\344\317\346\343\316\346\342\315\345\341\314\344\341\313\344\340"
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"\312\344\340\311\343\337\310\342\337\307\342\335\306\341\335\305\341\335"
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"\303\340\334\303\337\333\302\337\333\301\337\332\300\336\331\276\335\331"
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"\276\334\330\274\334\330\274\334\327\273\333\327\272\333\326\271\332\325"
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"\270\332\325\267\331\324\266\330\323\265\330\323\264\327\322\263\327\321"
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"\262\326\320\261\325\320\257\325\317\257\324\317\256\324\316\254\323\315"
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"\254\322\315\253\322\314\252\321\313\251\321\313\250\320\312\246\317\311"
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"\245\317\311\245\316\310\244\316\307\243\315\307\242\314\306\241\314\305"
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"\240\312\305\237\312\304\236\312\303\235\311\303\234\311\302\233\307\301"
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"\232\307\300\231\307\300\230\306\277\227\305\276\226\305\276\225\304\275"
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"\224\303\274\223\303\273\222\302\273\221\301\272\220\301\271\217\300\270"
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"\216\277\270\215\277\267\214\276\266\213\275\265\212\275\265\211\274\264"
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"\210\273\263\207\273\262\206\272\262\205\271\261\204\270\260\203\270\257"
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"\202\267\257\201\266\256\200\266\255\177\265\254~\264\253}\263\253|\263\252"
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"{\262\251z\261\250y\260\247x\260\247w\257\246v\256\245u\255\244t\255\243"
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"s\254\243r\253\242q\252\241p\252\240o\251\237n\250\236m\247\235l\246\235"
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"l\246\235j\245\233i\244\232h\243\231g\242\230f\242\227e\241\226d\240\226"
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"c\237\225b\236\224a\235\223`\234\222_\234\221_\233\220]\232\217\\\231\216"
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"\\\230\215Z\227\214Y\226\214X\226\213W\225\212V\224\211U\223\210T\222\207"
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"S\221\206R\221\205Q\217\204P\216\203O\215\202N\215\201M\214\200M\213\177"
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"K\212~J\211}I\211|H\210|G\206zG\205zE\204xD\203vC\203vB\201tA\200s@\200q"
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"@~p>}o>|o<{l<yk;xi9wh8wg8te6sd5qd4pa3n_2m]1k\\0j\\0hY.fW-dU,cT+aR*_P)_O("
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"]M'YK'XI%VI$TF$RD\"OB!M@\40K?\37I=\37G=\35E9\34C9\34A5\33>5\31<2\31<0\27"
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":.\27""5,\26""3*\24""1*\23.&\22.&\22*\"\21'\40\17%\36\16\"\34\15\"\32\14"
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"\36\32\13\33\26\13\31\24\11\26\22\11\24\20\7\24\16\6\21\16\5\14\14\4\12\10"
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"\3\7\6\3\5\4\1\2\2",
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};
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#endif
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218
gst/gl/effects/gstgleffectxray.c
Normal file
218
gst/gl/effects/gstgleffectxray.c
Normal file
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@ -0,0 +1,218 @@
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/*
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* GStreamer
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gstgleffects.h>
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#include <gstgleffectscurves.h>
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#include <gstgleffectlumatocurve.h>
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/* Gaussian Kernel: std = 1.200000, size = 9x1 */
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static gfloat gauss_kernel[9] = { 0.001285, 0.014607, 0.082898,
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0.234927, 0.332452, 0.234927,
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0.082898, 0.014607, 0.001285 };
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/* Normalization Constant = 0.999885 */
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static void gst_gl_effects_xray_step_one (gint width, gint height, guint texture, gpointer data)
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{
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GstGLEffects* effects = GST_GL_EFFECTS (data);
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gst_gl_effects_luma_to_curve (effects, xray_curve, GST_GL_EFFECTS_CURVE_XRAY,
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width, height, texture);
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}
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static void
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gst_gl_effects_xray_step_two (gint width, gint height, guint texture, gpointer data)
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{
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GstGLEffects* effects = GST_GL_EFFECTS (data);
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GstGLShader *shader;
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shader = g_hash_table_lookup (effects->shaderstable, "xray1");
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if (!shader) {
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shader = gst_gl_shader_new ();
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g_hash_table_insert (effects->shaderstable, "xray1", shader);
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}
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g_return_if_fail (
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gst_gl_shader_compile_and_check (shader, hconv9_fragment_source,
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GST_GL_SHADER_FRAGMENT_SOURCE));
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gst_gl_shader_use (shader);
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glActiveTexture (GL_TEXTURE1);
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glEnable (GL_TEXTURE_RECTANGLE_ARB);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
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glDisable (GL_TEXTURE_RECTANGLE_ARB);
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gst_gl_shader_set_uniform_1i (shader, "tex", 1);
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gst_gl_shader_set_uniform_1fv (shader, "kernel", 9, gauss_kernel);
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gst_gl_shader_set_uniform_1f (shader, "norm_const", 0.999885);
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gst_gl_shader_set_uniform_1f (shader, "norm_offset", 0.0f);
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gst_gl_effects_draw_texture (effects, texture);
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}
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static void
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gst_gl_effects_xray_step_three (gint width, gint height, guint texture, gpointer data)
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{
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GstGLEffects* effects = GST_GL_EFFECTS (data);
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GstGLShader *shader;
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shader = g_hash_table_lookup (effects->shaderstable, "xray2");
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if (!shader) {
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shader = gst_gl_shader_new ();
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g_hash_table_insert (effects->shaderstable, "xray2", shader);
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}
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g_return_if_fail (
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gst_gl_shader_compile_and_check (shader, vconv9_fragment_source,
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GST_GL_SHADER_FRAGMENT_SOURCE));
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gst_gl_shader_use (shader);
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glActiveTexture (GL_TEXTURE1);
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glEnable (GL_TEXTURE_RECTANGLE_ARB);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
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glDisable (GL_TEXTURE_RECTANGLE_ARB);
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gst_gl_shader_set_uniform_1i (shader, "tex", 1);
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gst_gl_shader_set_uniform_1fv (shader, "kernel", 9, gauss_kernel);
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gst_gl_shader_set_uniform_1f (shader, "norm_const", 0.999885);
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gst_gl_shader_set_uniform_1f (shader, "norm_offset", 0.0f);
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gst_gl_effects_draw_texture (effects, texture);
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}
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static void
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gst_gl_effects_xray_step_four (gint width, gint height, guint texture, gpointer data)
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{
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GstGLEffects* effects = GST_GL_EFFECTS (data);
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GstGLShader *shader;
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gfloat hkern[9] = {
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1.0, 0.0, -1.0,
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2.0, 0.0, -2.0,
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1.0, 0.0, -1.0
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};
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gfloat vkern[9] = {
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1.0, 2.0, 1.0,
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0.0, 0.0, 0.0,
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-1.0, -2.0, -1.0
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};
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shader = g_hash_table_lookup (effects->shaderstable, "xray3");
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if (!shader) {
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shader = gst_gl_shader_new ();
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g_hash_table_insert (effects->shaderstable, "xray3", shader);
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}
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g_return_if_fail (
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gst_gl_shader_compile_and_check (shader, sobel_fragment_source,
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GST_GL_SHADER_FRAGMENT_SOURCE));
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gst_gl_shader_use (shader);
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glActiveTexture (GL_TEXTURE1);
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glEnable (GL_TEXTURE_RECTANGLE_ARB);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
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glDisable (GL_TEXTURE_RECTANGLE_ARB);
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gst_gl_shader_set_uniform_1i (shader, "tex", 1);
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gst_gl_shader_set_uniform_1fv (shader, "hkern", 9, hkern);
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gst_gl_shader_set_uniform_1fv (shader, "vkern", 9, vkern);
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gst_gl_shader_set_uniform_1i (shader, "invert", TRUE);
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gst_gl_effects_draw_texture (effects, texture);
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}
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void
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gst_gl_effects_xray_step_five (gint width, gint height, guint texture, gpointer stuff)
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{
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GstGLEffects* effects = GST_GL_EFFECTS (stuff);
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GstGLShader *shader;
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shader = g_hash_table_lookup (effects->shaderstable, "xray4");
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if (!shader) {
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shader = gst_gl_shader_new ();
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g_hash_table_insert (effects->shaderstable, "xray4", shader);
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}
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g_return_if_fail (
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gst_gl_shader_compile_and_check (shader, multiply_fragment_source,
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GST_GL_SHADER_FRAGMENT_SOURCE));
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gst_gl_shader_use (shader);
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glActiveTexture (GL_TEXTURE2);
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glEnable (GL_TEXTURE_RECTANGLE_ARB);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, effects->midtexture[2]);
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glDisable(GL_TEXTURE_RECTANGLE_ARB);
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gst_gl_shader_set_uniform_1i (shader, "base", 2);
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glActiveTexture (GL_TEXTURE1);
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glEnable (GL_TEXTURE_RECTANGLE_ARB);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
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glDisable(GL_TEXTURE_RECTANGLE_ARB);
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gst_gl_shader_set_uniform_1f (shader, "alpha", (gfloat) 0.28f);
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gst_gl_shader_set_uniform_1i (shader, "blend", 1);
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gst_gl_effects_draw_texture (effects, texture);
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}
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void gst_gl_effects_xray (GstGLEffects *effects) {
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GstGLFilter *filter = GST_GL_FILTER (effects);
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/* map luma to xray curve */
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gst_gl_filter_render_to_target (filter, effects->intexture, effects->midtexture[0],
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gst_gl_effects_xray_step_one, effects);
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/* horizontal blur */
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gst_gl_filter_render_to_target (filter, effects->midtexture[0], effects->midtexture[1],
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gst_gl_effects_xray_step_two, effects);
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/* vertical blur */
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gst_gl_filter_render_to_target (filter, effects->midtexture[1], effects->midtexture[2],
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gst_gl_effects_xray_step_three, effects);
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/* detect edges with Sobel */
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gst_gl_filter_render_to_target (filter, effects->midtexture[2], effects->midtexture[3],
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gst_gl_effects_xray_step_four, effects);
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/* multiply edges with the blurred image */
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gst_gl_filter_render_to_target (filter, effects->midtexture[3], effects->outtexture,
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gst_gl_effects_xray_step_five, effects);
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}
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@ -72,6 +72,7 @@ typedef enum {
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GST_GL_EFFECT_SEPIA,
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GST_GL_EFFECT_XPRO,
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GST_GL_EFFECT_LUMA_XPRO,
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GST_GL_EFFECT_XRAY,
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GST_GL_EFFECT_SIN,
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GST_GL_EFFECT_GLOW,
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GST_GL_N_EFFECTS
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@ -96,6 +97,7 @@ gst_gl_effects_effect_get_type (void)
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{ GST_GL_EFFECT_SEPIA, "Sepia Toning Effect", "sepia" },
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{ GST_GL_EFFECT_XPRO, "Cross Processing Effect", "xpro" },
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{ GST_GL_EFFECT_LUMA_XPRO, "Luma Cross Processing Effect", "lumaxpro" },
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{ GST_GL_EFFECT_XRAY, "Glowing negative effect", "xray" },
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{ GST_GL_EFFECT_SIN, "All Grey but Red Effect", "sin" },
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{ GST_GL_EFFECT_GLOW, "Glow Lighting Effect", "glow" },
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{ 0, NULL, NULL }
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@ -151,6 +153,9 @@ gst_gl_effects_set_effect (GstGLEffects *effects, gint effect_type) {
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case GST_GL_EFFECT_LUMA_XPRO:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_luma_xpro;
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break;
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case GST_GL_EFFECT_XRAY:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_xray;
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break;
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case GST_GL_EFFECT_SIN:
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effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sin;
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break;
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@ -50,6 +50,7 @@ enum {
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GST_GL_EFFECTS_CURVE_SEPIA,
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GST_GL_EFFECTS_CURVE_XPRO,
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GST_GL_EFFECTS_CURVE_LUMA_XPRO,
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GST_GL_EFFECTS_CURVE_XRAY,
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GST_GL_EFFECTS_N_CURVES
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};
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@ -100,6 +101,7 @@ void gst_gl_effects_square (GstGLEffects *effects);
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void gst_gl_effects_heat (GstGLEffects *effects);
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void gst_gl_effects_sepia (GstGLEffects *effects);
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void gst_gl_effects_xpro (GstGLEffects *effects);
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void gst_gl_effects_xray (GstGLEffects *effects);
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void gst_gl_effects_luma_xpro (GstGLEffects *effects);
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void gst_gl_effects_sin (GstGLEffects *effects);
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void gst_gl_effects_glow (GstGLEffects *effects);
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@ -190,6 +190,7 @@ main (gint argc, gchar * argv[])
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gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "xpro");
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gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "lumaxpro");
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gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "sepia");
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gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "xray");
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gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "sin");
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gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "glow");
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