mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-23 23:58:17 +00:00
Code Issues 1 Projects Releases Wiki Activity

[231/906] Add a glfilterglass inspired from http://www.mdk.org.pl/2007/11/17/gl-colorspace-conversions

Browse source
This commit is contained in:
Julien Isorce 2008-09-21 19:26:37 +02:00 committed by Matthew Waters
parent 41e5676c47
commit d2cc6f2226
5 changed files with 397 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
gst/gl/CMakeLists.txt
View file

@ -25,6 +25,7 @@ add_library (gstopengl SHARED
gstglfilterblur.c gstglfilterblur.c
gstglfiltercube.c gstglfiltercube.c
gstglfilterlaplacian.c gstglfilterlaplacian.c
gstglfilterglass.c
gstglfilterapp.c gstglfilterapp.c
gstglcolorscale.c gstglcolorscale.c
gltestsrc.c gltestsrc.c

8
gst/gl/Makefile.am
View file

@ -12,17 +12,19 @@ libgstopengl_la_SOURCES = \
gstglupload.h \ gstglupload.h \
gstgldownload.c \ gstgldownload.c \
gstgldownload.h \ gstgldownload.h \
gstglfilterblur.c \ gstglfilterblur.c \
gstglfiltercube.c \ gstglfiltercube.c \
gstglfiltercube.h \ gstglfiltercube.h \
gstglfilterlaplacian.c \ gstglfilterlaplacian.c \
gstglfilterlaplacian.h \ gstglfilterlaplacian.h \
gstglfilterglass.c \
gstglfilterglass.h \
gstglfilterapp.c \ gstglfilterapp.c \
gstglfilterapp.h \ gstglfilterapp.h \
gstglcolorscale.c \ gstglcolorscale.c \
gstglcolorscale.h \ gstglcolorscale.h \
gltestsrc.c \ gltestsrc.c \
gltestsrc.h \ gltestsrc.h \
gstgltestsrc.c \ gstgltestsrc.c \
gstgltestsrc.h \ gstgltestsrc.h \
gstgleffects.c \ gstgleffects.c \

330
gst/gl/gstglfilterglass.c Normal file
View file

@ -0,0 +1,330 @@
/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
* Inspired from http://www.mdk.org.pl/2007/11/17/gl-colorspace-conversions
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <math.h>
#include "gstglfilterglass.h"
#define GST_CAT_DEFAULT gst_gl_filter_glass_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static const GstElementDetails element_details =
GST_ELEMENT_DETAILS ("OpenGL glass filter",
"Filter/Effect",
"Glass Filter",
"Julien Isorce <julien.isorce@gmail.com>");
enum
{
PROP_0
};
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_gl_filter_glass_debug, "glfilterglass", 0, "glfilterglass element");
GST_BOILERPLATE_FULL (GstGLFilterGlass, gst_gl_filter_glass, GstGLFilter,
GST_TYPE_GL_FILTER, DEBUG_INIT);
static void gst_gl_filter_glass_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gl_filter_glass_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_gl_filter_glass_reset (GstGLFilter* filter);
static void gst_gl_filter_glass_init_shader (GstGLFilter* filter);
static gboolean gst_gl_filter_glass_filter (GstGLFilter * filter,
GstGLBuffer * inbuf, GstGLBuffer * outbuf);
static void gst_gl_filter_glass_draw_background_gradient ();
static void gst_gl_filter_glass_draw_video_plane (GstGLFilter* filter,
gint width, gint height, guint texture, gfloat center_x, gfloat center_y,
gfloat start_alpha, gfloat stop_alpha, gboolean reversed);
static void gst_gl_filter_glass_callback (gint width, gint height, guint texture, gpointer stuff);
static const gchar *glass_fragment_source =
"#extension GL_ARB_texture_rectangle : enable\n"
"uniform sampler2DRect tex;"
"uniform float width, height;"
"void main () {"
" float xl = 0.0525*width;"
" float xr = (1.0 - 0.0525)*width;"
" float yl = 0.0875*height;"
" float yr = (1.0 - 0.0875)*height;"
" float r;"
" if (gl_TexCoord[0].x < xl && gl_TexCoord[0].y < yl)"
" r = (gl_TexCoord[0].x - xl) * (gl_TexCoord[0].x - xl) + (gl_TexCoord[0].y - yl) * (gl_TexCoord[0].y - yl);"
" else if (gl_TexCoord[0].x > xr && gl_TexCoord[0].y < yl)"
" r = (gl_TexCoord[0].x - xr) * (gl_TexCoord[0].x - xr) + (gl_TexCoord[0].y - yl) * (gl_TexCoord[0].y - yl);"
" else if (gl_TexCoord[0].x > xr && gl_TexCoord[0].y > yr)"
" r = (gl_TexCoord[0].x - xr) * (gl_TexCoord[0].x - xr) + (gl_TexCoord[0].y - yr) * (gl_TexCoord[0].y - yr);"
" else if (gl_TexCoord[0].x < xl && gl_TexCoord[0].y > yr)"
" r = (gl_TexCoord[0].x - xl) * (gl_TexCoord[0].x - xl) + (gl_TexCoord[0].y - yr) * (gl_TexCoord[0].y - yr);"
" else if (gl_TexCoord[0].y < yl)"
" r = (gl_TexCoord[0].y - yl) * (gl_TexCoord[0].y - yl);"
" else if (gl_TexCoord[0].y > yr)"
" r = (gl_TexCoord[0].y - yr) * (gl_TexCoord[0].y - yr);"
" else if (gl_TexCoord[0].x < xl)"
" r = (gl_TexCoord[0].x - xl) * (gl_TexCoord[0].x - xl);"
" else if (gl_TexCoord[0].x > xr)"
" r = (gl_TexCoord[0].x - xr) * (gl_TexCoord[0].x - xr);"
" else"
" r = width;"
" float v = clamp(r, width, width + width/10.0);"
" v = (v - width) * 10.0 / width;"
" vec4 color = texture2DRect (tex, gl_TexCoord[0].st);"
" gl_FragColor = vec4(color.rgb, color.a * (1.0 - v));"
"}";
static void
gst_gl_filter_glass_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details (element_class, &element_details);
}
static void
gst_gl_filter_glass_class_init (GstGLFilterGlassClass* klass)
{
GObjectClass* gobject_class;
gobject_class = (GObjectClass *) klass;
gobject_class->set_property = gst_gl_filter_glass_set_property;
gobject_class->get_property = gst_gl_filter_glass_get_property;
GST_GL_FILTER_CLASS (klass)->filter = gst_gl_filter_glass_filter;
GST_GL_FILTER_CLASS (klass)->onInitFBO = gst_gl_filter_glass_init_shader;
GST_GL_FILTER_CLASS (klass)->onReset = gst_gl_filter_glass_reset;
}
static void
gst_gl_filter_glass_init (GstGLFilterGlass* filter,
GstGLFilterGlassClass* klass)
{
filter->shader = NULL;
filter->timestamp = 0;
}
static void
gst_gl_filter_glass_reset (GstGLFilter* filter)
{
GstGLFilterGlass* glass_filter = GST_GL_FILTER_GLASS(filter);
//blocking call, wait the opengl thread has destroyed the shader
gst_gl_display_del_shader (filter->display, glass_filter->shader);
}
static void
gst_gl_filter_glass_set_property (GObject* object, guint prop_id,
const GValue* value, GParamSpec* pspec)
{
//GstGLFilterGlass *filter = GST_GL_FILTER_GLASS (object);
switch (prop_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_filter_glass_get_property (GObject* object, guint prop_id,
GValue* value, GParamSpec* pspec)
{
//GstGLFilterGlass *filter = GST_GL_FILTER_GLASS (object);
switch (prop_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_filter_glass_init_shader (GstGLFilter* filter)
{
GstGLFilterGlass* glass_filter = GST_GL_FILTER_GLASS (filter);
//blocking call, wait the opengl thread has compiled the shader
gst_gl_display_gen_shader (filter->display, 0, glass_fragment_source, &glass_filter->shader);
}
static gboolean
gst_gl_filter_glass_filter (GstGLFilter* filter, GstGLBuffer* inbuf,
GstGLBuffer* outbuf)
{
gpointer glass_filter = GST_GL_FILTER_GLASS (filter);
GST_GL_FILTER_GLASS(glass_filter)->timestamp = GST_BUFFER_TIMESTAMP (inbuf);
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, outbuf->texture, gst_gl_filter_glass_callback,
inbuf->width, inbuf->height, inbuf->texture,
80, (gdouble)filter->width/(gdouble)filter->height, 1.0, 5000.0,
GST_GL_DISPLAY_PROJECTION_PERSPECIVE, (gpointer)glass_filter);
return TRUE;
}
static gint64
get_time (void)
{
static GTimeVal val;
g_get_current_time (&val);
return (val.tv_sec * G_USEC_PER_SEC) + val.tv_usec;
}
static void
gst_gl_filter_glass_draw_background_gradient ()
{
glMatrixMode (GL_PROJECTION);
glPushMatrix ();
glLoadIdentity ();
glOrtho (-100, 100, -100, 100, -1000.0, 1000.0);
glBegin (GL_QUADS);
glColor4f (0.0f, 0.0f, 0.0f, 1.0f);
glVertex2f (-100.0f, -100.0f);
glVertex2f (100.0f, -100.0f);
glColor4f (0.0f, 0.0f, 0.2f, 1.0f);
glVertex2f (100.0f, 80.0f);
glVertex2f (-100.0f, 80.0f);
glVertex2f (100.0f, 80.0f);
glVertex2f (-100.0f, 80.0f);
glVertex2f (-100.0f, 100.0f);
glVertex2f (100.0f, 100.0f);
glEnd ();
glPopMatrix ();
glMatrixMode (GL_MODELVIEW);
}
static void
gst_gl_filter_glass_draw_video_plane (GstGLFilter* filter,
gint width, gint height, guint texture,
gfloat center_x, gfloat center_y,
gfloat start_alpha, gfloat stop_alpha,
gboolean reversed)
{
GstGLFilterGlass* glass_filter = GST_GL_FILTER_GLASS (filter);
gfloat topy;
gfloat bottomy;
if (reversed) {
topy = center_y - 1.0f;
bottomy = center_y + 1.0f;
} else {
topy = center_y + 1.0f;
bottomy = center_y - 1.0f;
}
gst_gl_shader_use (glass_filter->shader);
glActiveTextureARB (GL_TEXTURE0_ARB);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
glDisable (GL_TEXTURE_RECTANGLE_ARB);
gst_gl_shader_set_uniform_1i (glass_filter->shader, "tex", 0);
gst_gl_shader_set_uniform_1f (glass_filter->shader, "width", (gfloat)width);
gst_gl_shader_set_uniform_1f (glass_filter->shader, "height", (gfloat)height);
glBegin (GL_QUADS);
glColor4f (1.0f, 1.0f, 1.0f, start_alpha);
glTexCoord2i (0, height);
glVertex2f (center_x - 1.6f, topy);
glTexCoord2i (width, height);
glVertex2f (center_x + 1.6f, topy);
glColor4f (1.0, 1.0, 1.0, stop_alpha);
glTexCoord2i (width, 0);
glVertex2f (center_x + 1.6f, bottomy);
glTexCoord2i (0, 0);
glVertex2f (center_x - 1.6f, bottomy);
glEnd ();
gst_gl_shader_use (0);
}
//opengl scene, params: input texture (not the output filter->texture)
static void
gst_gl_filter_glass_callback (gint width, gint height, guint texture, gpointer stuff)
{
static gint64 start_time = 0;
GstGLFilter* filter = GST_GL_FILTER (stuff);
GstGLFilterGlass* glass_filter = GST_GL_FILTER_GLASS (stuff);
if (start_time == 0)
start_time = get_time ();
else
{
gint64 time_left = (glass_filter->timestamp / 1000) - (get_time () - start_time);
time_left -= 1000000 / 25;
if (time_left > 2000)
{
GST_CAT_LOG (GST_CAT_DEFAULT, "escape");
return;
}
}
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glTranslatef(0.0f, 2.0f, -3.0f);
gst_gl_filter_glass_draw_background_gradient ();
//Rotation
if (start_time != 0) {
gint64 time_passed = get_time () - start_time;
glRotated (sin (time_passed / 1200000.0) * 45.0, 0.0, 1.0, 0.0);
}
glPushMatrix ();
//Reflection
gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
0.0f, 0.0f, 0.3f, 0.5f, TRUE);
//Main video
gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
0.0f, -2.0f, 1.0f, 1.0f, FALSE);
glActiveTextureARB (GL_TEXTURE0_ARB);
glDisable (GL_TEXTURE_RECTANGLE_ARB);
glPopMatrix ();
}

54
gst/gl/gstglfilterglass.h Normal file
View file

@ -0,0 +1,54 @@
/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@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.
*/
#ifndef _GST_GL_FILTERGLASS_H_
#define _GST_GL_FILTERGLASS_H_
#include <gstglfilter.h>
G_BEGIN_DECLS
#define GST_TYPE_GL_FILTER_GLASS (gst_gl_filter_glass_get_type())
#define GST_GL_FILTER_GLASS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_FILTER_GLASS,GstGLFilterGlass))
#define GST_IS_GL_FILTER_GLASS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_FILTER_GLASS))
#define GST_GL_FILTER_GLASS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_FILTER_GLASS,GstGLFilterGlassClass))
#define GST_IS_GL_FILTER_GLASS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_FILTER_GLASS))
#define GST_GL_FILTER_GLASS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_FILTER_GLASS,GstGLFilterGlassClass))
typedef struct _GstGLFilterGlass GstGLFilterGlass;
typedef struct _GstGLFilterGlassClass GstGLFilterGlassClass;
struct _GstGLFilterGlass
{
GstGLFilter filter;
GstGLShader *shader;
gint64 timestamp;
};
struct _GstGLFilterGlassClass
{
GstGLFilterClass filter_class;
};
GType gst_gl_glfilterglass_get_type (void);
G_END_DECLS
#endif /* _GST_GLFILTERGLASS_H_ */

7
gst/gl/gstopengl.c
View file

@ -29,6 +29,7 @@
#include "gstglupload.h" #include "gstglupload.h"
#include "gstglfiltercube.h" #include "gstglfiltercube.h"
#include "gstglfilterlaplacian.h" #include "gstglfilterlaplacian.h"
#include "gstglfilterglass.h"
#include "gstglfilterapp.h" #include "gstglfilterapp.h"
#include "gstgldownload.h" #include "gstgldownload.h"
#include "gstglimagesink.h" #include "gstglimagesink.h"
@ -44,6 +45,7 @@ GType gst_gl_filter_cube_get_type (void);
GType gst_gl_filterblur_get_type (void); GType gst_gl_filterblur_get_type (void);
GType gst_gl_filter_edge_get_type (void); GType gst_gl_filter_edge_get_type (void);
GType gst_gl_filter_laplacian_get_type (void); GType gst_gl_filter_laplacian_get_type (void);
GType gst_gl_filter_glass_get_type (void);
#ifdef HAVE_GDKPIXBUF #ifdef HAVE_GDKPIXBUF
GType gst_gl_pixbufoverlay_get_type (void); GType gst_gl_pixbufoverlay_get_type (void);
GType gst_gl_differencematte_get_type (void); GType gst_gl_differencematte_get_type (void);
@ -103,6 +105,11 @@ plugin_init (GstPlugin * plugin)
return FALSE; return FALSE;
} }
if (!gst_element_register (plugin, "glfilterglass",
GST_RANK_NONE, GST_TYPE_GL_FILTER_GLASS)) {
return FALSE;
}
if (!gst_element_register (plugin, "glfilterapp", if (!gst_element_register (plugin, "glfilterapp",
GST_RANK_NONE, GST_TYPE_GL_FILTER_APP)) { GST_RANK_NONE, GST_TYPE_GL_FILTER_APP)) {
return FALSE; return FALSE;