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-rw-r--r--gst/gl/Makefile.am4
-rw-r--r--gst/gl/effects/gstgleffectscurves.h42
-rw-r--r--gst/gl/effects/gstgleffectxray.c218
-rw-r--r--gst/gl/gstgleffects.c5
-rw-r--r--gst/gl/gstgleffects.h2
-rw-r--r--tests/examples/gtk/fxtest/fxtest.c1
6 files changed, 269 insertions, 3 deletions
diff --git a/gst/gl/Makefile.am b/gst/gl/Makefile.am
index 7215f8197..1b359bf2a 100644
--- a/gst/gl/Makefile.am
+++ b/gst/gl/Makefile.am
@@ -43,9 +43,11 @@ libgstopengl_la_SOURCES = \
effects/gstgleffectbulge.c \
effects/gstgleffectsquare.c \
effects/gstgleffectlumatocurve.c \
+ effects/gstgleffectlumatocurve.h \
effects/gstgleffectrgbtocurve.c \
effects/gstgleffectsin.c \
- effects/gstgleffectglow.c
+ effects/gstgleffectglow.c \
+ effects/gstgleffectxray.c
if HAVE_GDKPIXBUF
libgstopengl_la_SOURCES += gstglpixbufoverlay.c \
diff --git a/gst/gl/effects/gstgleffectscurves.h b/gst/gl/effects/gstgleffectscurves.h
index e5a6432a2..8bbf345f8 100644
--- a/gst/gl/effects/gstgleffectscurves.h
+++ b/gst/gl/effects/gstgleffectscurves.h
@@ -18,8 +18,8 @@
* Boston, MA 02111-1307, USA.
*/
-#ifndef __GST_GL_EFFECTS_TEXTURES__
-#define __GST_GL_EFFECTS_TEXTURES__
+#ifndef __GST_GL_EFFECTS_TEXTURES_H__
+#define __GST_GL_EFFECTS_TEXTURES_H__
struct _GstGLEffectsCurve {
@@ -171,4 +171,42 @@ static const GstGLEffectsCurve sepia_curve = {
"\352\376\375\353\376\376\355\376\376\356\376\376\357\377\377\357",
};
+static const GstGLEffectsCurve xray_curve = {
+ 256, 1, 3,
+ "\377\377\377\377\377\377\376\376\376\375\375\376\374\375\375\373\374\375"
+ "\372\374\374\371\374\374\370\373\373\366\373\372\366\372\372\365\372\371"
+ "\363\371\371\363\371\370\362\370\370\360\370\367\360\367\366\357\367\365"
+ "\356\366\365\355\366\364\353\365\363\353\365\363\352\364\362\351\363\362"
+ "\347\363\361\346\362\361\345\362\361\344\362\360\343\361\357\343\361\356"
+ "\342\360\356\341\360\356\340\357\355\336\356\354\336\356\354\335\355\353"
+ "\334\355\353\333\355\352\331\354\351\331\353\351\330\353\350\327\353\350"
+ "\325\352\347\325\351\347\324\350\346\323\350\345\322\347\344\321\347\344"
+ "\320\347\344\317\346\343\316\346\342\315\345\341\314\344\341\313\344\340"
+ "\312\344\340\311\343\337\310\342\337\307\342\335\306\341\335\305\341\335"
+ "\303\340\334\303\337\333\302\337\333\301\337\332\300\336\331\276\335\331"
+ "\276\334\330\274\334\330\274\334\327\273\333\327\272\333\326\271\332\325"
+ "\270\332\325\267\331\324\266\330\323\265\330\323\264\327\322\263\327\321"
+ "\262\326\320\261\325\320\257\325\317\257\324\317\256\324\316\254\323\315"
+ "\254\322\315\253\322\314\252\321\313\251\321\313\250\320\312\246\317\311"
+ "\245\317\311\245\316\310\244\316\307\243\315\307\242\314\306\241\314\305"
+ "\240\312\305\237\312\304\236\312\303\235\311\303\234\311\302\233\307\301"
+ "\232\307\300\231\307\300\230\306\277\227\305\276\226\305\276\225\304\275"
+ "\224\303\274\223\303\273\222\302\273\221\301\272\220\301\271\217\300\270"
+ "\216\277\270\215\277\267\214\276\266\213\275\265\212\275\265\211\274\264"
+ "\210\273\263\207\273\262\206\272\262\205\271\261\204\270\260\203\270\257"
+ "\202\267\257\201\266\256\200\266\255\177\265\254~\264\253}\263\253|\263\252"
+ "{\262\251z\261\250y\260\247x\260\247w\257\246v\256\245u\255\244t\255\243"
+ "s\254\243r\253\242q\252\241p\252\240o\251\237n\250\236m\247\235l\246\235"
+ "l\246\235j\245\233i\244\232h\243\231g\242\230f\242\227e\241\226d\240\226"
+ "c\237\225b\236\224a\235\223`\234\222_\234\221_\233\220]\232\217\\\231\216"
+ "\\\230\215Z\227\214Y\226\214X\226\213W\225\212V\224\211U\223\210T\222\207"
+ "S\221\206R\221\205Q\217\204P\216\203O\215\202N\215\201M\214\200M\213\177"
+ "K\212~J\211}I\211|H\210|G\206zG\205zE\204xD\203vC\203vB\201tA\200s@\200q"
+ "@~p>}o>|o<{l<yk;xi9wh8wg8te6sd5qd4pa3n_2m]1k\\0j\\0hY.fW-dU,cT+aR*_P)_O("
+ "]M'YK'XI%VI$TF$RD\"OB!M@\40K?\37I=\37G=\35E9\34C9\34A5\33>5\31<2\31<0\27"
+ ":.\27""5,\26""3*\24""1*\23.&\22.&\22*\"\21'\40\17%\36\16\"\34\15\"\32\14"
+ "\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"
+ "\3\7\6\3\5\4\1\2\2",
+};
+
#endif
diff --git a/gst/gl/effects/gstgleffectxray.c b/gst/gl/effects/gstgleffectxray.c
new file mode 100644
index 000000000..6d6c5d51c
--- /dev/null
+++ b/gst/gl/effects/gstgleffectxray.c
@@ -0,0 +1,218 @@
+/*
+ * 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.
+ */
+
+#include <gstgleffects.h>
+#include <gstgleffectscurves.h>
+#include <gstgleffectlumatocurve.h>
+
+/* Gaussian Kernel: std = 1.200000, size = 9x1 */
+static gfloat gauss_kernel[9] = { 0.001285, 0.014607, 0.082898,
+ 0.234927, 0.332452, 0.234927,
+ 0.082898, 0.014607, 0.001285 };
+/* Normalization Constant = 0.999885 */
+
+static void gst_gl_effects_xray_step_one (gint width, gint height, guint texture, gpointer data)
+{
+ GstGLEffects* effects = GST_GL_EFFECTS (data);
+
+ gst_gl_effects_luma_to_curve (effects, xray_curve, GST_GL_EFFECTS_CURVE_XRAY,
+ width, height, texture);
+}
+
+static void
+gst_gl_effects_xray_step_two (gint width, gint height, guint texture, gpointer data)
+{
+ GstGLEffects* effects = GST_GL_EFFECTS (data);
+ GstGLShader *shader;
+
+ shader = g_hash_table_lookup (effects->shaderstable, "xray1");
+
+ if (!shader) {
+ shader = gst_gl_shader_new ();
+ g_hash_table_insert (effects->shaderstable, "xray1", shader);
+ }
+
+ g_return_if_fail (
+ gst_gl_shader_compile_and_check (shader, hconv9_fragment_source,
+ GST_GL_SHADER_FRAGMENT_SOURCE));
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ gst_gl_shader_use (shader);
+
+ glActiveTexture (GL_TEXTURE1);
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+ glDisable (GL_TEXTURE_RECTANGLE_ARB);
+
+ gst_gl_shader_set_uniform_1i (shader, "tex", 1);
+
+ gst_gl_shader_set_uniform_1fv (shader, "kernel", 9, gauss_kernel);
+ gst_gl_shader_set_uniform_1f (shader, "norm_const", 0.999885);
+ gst_gl_shader_set_uniform_1f (shader, "norm_offset", 0.0f);
+
+ gst_gl_effects_draw_texture (effects, texture);
+}
+
+static void
+gst_gl_effects_xray_step_three (gint width, gint height, guint texture, gpointer data)
+{
+ GstGLEffects* effects = GST_GL_EFFECTS (data);
+ GstGLShader *shader;
+
+ shader = g_hash_table_lookup (effects->shaderstable, "xray2");
+
+ if (!shader) {
+ shader = gst_gl_shader_new ();
+ g_hash_table_insert (effects->shaderstable, "xray2", shader);
+ }
+
+ g_return_if_fail (
+ gst_gl_shader_compile_and_check (shader, vconv9_fragment_source,
+ GST_GL_SHADER_FRAGMENT_SOURCE));
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ gst_gl_shader_use (shader);
+
+ glActiveTexture (GL_TEXTURE1);
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+ glDisable (GL_TEXTURE_RECTANGLE_ARB);
+
+ gst_gl_shader_set_uniform_1i (shader, "tex", 1);
+
+ gst_gl_shader_set_uniform_1fv (shader, "kernel", 9, gauss_kernel);
+ gst_gl_shader_set_uniform_1f (shader, "norm_const", 0.999885);
+ gst_gl_shader_set_uniform_1f (shader, "norm_offset", 0.0f);
+
+ gst_gl_effects_draw_texture (effects, texture);
+}
+
+static void
+gst_gl_effects_xray_step_four (gint width, gint height, guint texture, gpointer data)
+{
+ GstGLEffects* effects = GST_GL_EFFECTS (data);
+ GstGLShader *shader;
+
+ gfloat hkern[9] = {
+ 1.0, 0.0, -1.0,
+ 2.0, 0.0, -2.0,
+ 1.0, 0.0, -1.0
+ };
+
+ gfloat vkern[9] = {
+ 1.0, 2.0, 1.0,
+ 0.0, 0.0, 0.0,
+ -1.0, -2.0, -1.0
+ };
+
+ shader = g_hash_table_lookup (effects->shaderstable, "xray3");
+
+ if (!shader) {
+ shader = gst_gl_shader_new ();
+ g_hash_table_insert (effects->shaderstable, "xray3", shader);
+ }
+
+ g_return_if_fail (
+ gst_gl_shader_compile_and_check (shader, sobel_fragment_source,
+ GST_GL_SHADER_FRAGMENT_SOURCE));
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ gst_gl_shader_use (shader);
+
+ glActiveTexture (GL_TEXTURE1);
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+ glDisable (GL_TEXTURE_RECTANGLE_ARB);
+
+ gst_gl_shader_set_uniform_1i (shader, "tex", 1);
+
+ gst_gl_shader_set_uniform_1fv (shader, "hkern", 9, hkern);
+ gst_gl_shader_set_uniform_1fv (shader, "vkern", 9, vkern);
+
+ gst_gl_shader_set_uniform_1i (shader, "invert", TRUE);
+
+ gst_gl_effects_draw_texture (effects, texture);
+}
+
+void
+gst_gl_effects_xray_step_five (gint width, gint height, guint texture, gpointer stuff)
+{
+ GstGLEffects* effects = GST_GL_EFFECTS (stuff);
+ GstGLShader *shader;
+
+ shader = g_hash_table_lookup (effects->shaderstable, "xray4");
+
+ if (!shader) {
+ shader = gst_gl_shader_new ();
+ g_hash_table_insert (effects->shaderstable, "xray4", shader);
+ }
+
+ g_return_if_fail (
+ gst_gl_shader_compile_and_check (shader, multiply_fragment_source,
+ GST_GL_SHADER_FRAGMENT_SOURCE));
+
+ glMatrixMode (GL_PROJECTION);
+ glLoadIdentity ();
+
+ gst_gl_shader_use (shader);
+
+ glActiveTexture (GL_TEXTURE2);
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, effects->midtexture[2]);
+ glDisable(GL_TEXTURE_RECTANGLE_ARB);
+
+ gst_gl_shader_set_uniform_1i (shader, "base", 2);
+
+ glActiveTexture (GL_TEXTURE1);
+ glEnable (GL_TEXTURE_RECTANGLE_ARB);
+ glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
+ glDisable(GL_TEXTURE_RECTANGLE_ARB);
+
+ gst_gl_shader_set_uniform_1f (shader, "alpha", (gfloat) 0.28f);
+ gst_gl_shader_set_uniform_1i (shader, "blend", 1);
+
+ gst_gl_effects_draw_texture (effects, texture);
+}
+
+void gst_gl_effects_xray (GstGLEffects *effects) {
+ GstGLFilter *filter = GST_GL_FILTER (effects);
+
+ /* map luma to xray curve */
+ gst_gl_filter_render_to_target (filter, effects->intexture, effects->midtexture[0],
+ gst_gl_effects_xray_step_one, effects);
+ /* horizontal blur */
+ gst_gl_filter_render_to_target (filter, effects->midtexture[0], effects->midtexture[1],
+ gst_gl_effects_xray_step_two, effects);
+ /* vertical blur */
+ gst_gl_filter_render_to_target (filter, effects->midtexture[1], effects->midtexture[2],
+ gst_gl_effects_xray_step_three, effects);
+ /* detect edges with Sobel */
+ gst_gl_filter_render_to_target (filter, effects->midtexture[2], effects->midtexture[3],
+ gst_gl_effects_xray_step_four, effects);
+ /* multiply edges with the blurred image */
+ gst_gl_filter_render_to_target (filter, effects->midtexture[3], effects->outtexture,
+ gst_gl_effects_xray_step_five, effects);
+}
diff --git a/gst/gl/gstgleffects.c b/gst/gl/gstgleffects.c
index 248d35dc7..5d569ffc8 100644
--- a/gst/gl/gstgleffects.c
+++ b/gst/gl/gstgleffects.c
@@ -72,6 +72,7 @@ typedef enum {
GST_GL_EFFECT_SEPIA,
GST_GL_EFFECT_XPRO,
GST_GL_EFFECT_LUMA_XPRO,
+ GST_GL_EFFECT_XRAY,
GST_GL_EFFECT_SIN,
GST_GL_EFFECT_GLOW,
GST_GL_N_EFFECTS
@@ -96,6 +97,7 @@ gst_gl_effects_effect_get_type (void)
{ GST_GL_EFFECT_SEPIA, "Sepia Toning Effect", "sepia" },
{ GST_GL_EFFECT_XPRO, "Cross Processing Effect", "xpro" },
{ GST_GL_EFFECT_LUMA_XPRO, "Luma Cross Processing Effect", "lumaxpro" },
+ { GST_GL_EFFECT_XRAY, "Glowing negative effect", "xray" },
{ GST_GL_EFFECT_SIN, "All Grey but Red Effect", "sin" },
{ GST_GL_EFFECT_GLOW, "Glow Lighting Effect", "glow" },
{ 0, NULL, NULL }
@@ -151,6 +153,9 @@ gst_gl_effects_set_effect (GstGLEffects *effects, gint effect_type) {
case GST_GL_EFFECT_LUMA_XPRO:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_luma_xpro;
break;
+ case GST_GL_EFFECT_XRAY:
+ effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_xray;
+ break;
case GST_GL_EFFECT_SIN:
effects->effect = (GstGLEffectProcessFunc) gst_gl_effects_sin;
break;
diff --git a/gst/gl/gstgleffects.h b/gst/gl/gstgleffects.h
index e0d3fa01f..5caf9b87e 100644
--- a/gst/gl/gstgleffects.h
+++ b/gst/gl/gstgleffects.h
@@ -50,6 +50,7 @@ enum {
GST_GL_EFFECTS_CURVE_SEPIA,
GST_GL_EFFECTS_CURVE_XPRO,
GST_GL_EFFECTS_CURVE_LUMA_XPRO,
+ GST_GL_EFFECTS_CURVE_XRAY,
GST_GL_EFFECTS_N_CURVES
};
@@ -100,6 +101,7 @@ void gst_gl_effects_square (GstGLEffects *effects);
void gst_gl_effects_heat (GstGLEffects *effects);
void gst_gl_effects_sepia (GstGLEffects *effects);
void gst_gl_effects_xpro (GstGLEffects *effects);
+void gst_gl_effects_xray (GstGLEffects *effects);
void gst_gl_effects_luma_xpro (GstGLEffects *effects);
void gst_gl_effects_sin (GstGLEffects *effects);
void gst_gl_effects_glow (GstGLEffects *effects);
diff --git a/tests/examples/gtk/fxtest/fxtest.c b/tests/examples/gtk/fxtest/fxtest.c
index f3c2bfa98..36dd2c162 100644
--- a/tests/examples/gtk/fxtest/fxtest.c
+++ b/tests/examples/gtk/fxtest/fxtest.c
@@ -190,6 +190,7 @@ main (gint argc, gchar * argv[])
gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "xpro");
gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "lumaxpro");
gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "sepia");
+ gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "xray");
gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "sin");
gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "glow");
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 22:44:25 +0000