mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 16:26:39 +00:00
d8c710d143
So that we don't recreate it every frame and leak memory. https://bugzilla.gnome.org/show_bug.cgi?id=761578
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/*
|
|
* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "../gstgleffects.h"
|
|
|
|
static void
|
|
gst_gl_effects_identity_callback (gint width, gint height, guint texture,
|
|
gpointer data)
|
|
{
|
|
GstGLEffects *effects = GST_GL_EFFECTS (data);
|
|
GstGLFilter *filter = GST_GL_FILTER (effects);
|
|
GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
|
|
GstGLFuncs *gl = context->gl_vtable;
|
|
GstGLShader *shader;
|
|
|
|
#if GST_GL_HAVE_OPENGL
|
|
if (USING_OPENGL (context)) {
|
|
gl->MatrixMode (GL_PROJECTION);
|
|
gl->LoadIdentity ();
|
|
}
|
|
#endif
|
|
|
|
shader = g_hash_table_lookup (effects->shaderstable, "identity0");
|
|
if (!shader) {
|
|
GError *error = NULL;
|
|
|
|
if (!(shader = gst_gl_shader_new_default (context, &error))) {
|
|
GST_ELEMENT_ERROR (effects, RESOURCE, NOT_FOUND,
|
|
("Failed to initialize identity shader: %s", error->message), (NULL));
|
|
return;
|
|
}
|
|
|
|
filter->draw_attr_position_loc =
|
|
gst_gl_shader_get_attribute_location (shader, "a_position");
|
|
filter->draw_attr_texture_loc =
|
|
gst_gl_shader_get_attribute_location (shader, "a_texcoord");
|
|
|
|
g_hash_table_insert (effects->shaderstable, (gchar *) "identity0", shader);
|
|
}
|
|
gst_gl_shader_use (shader);
|
|
|
|
gl->ActiveTexture (GL_TEXTURE0);
|
|
gl->BindTexture (GL_TEXTURE_2D, texture);
|
|
|
|
gst_gl_shader_set_uniform_1i (shader, "tex", 0);
|
|
|
|
gst_gl_filter_draw_texture (filter, texture, width, height);
|
|
}
|
|
|
|
void
|
|
gst_gl_effects_identity (GstGLEffects * effects)
|
|
{
|
|
GstGLFilter *filter = GST_GL_FILTER (effects);
|
|
|
|
gst_gl_filter_render_to_target (filter, TRUE, effects->intexture,
|
|
effects->outtexture, gst_gl_effects_identity_callback, effects);
|
|
}
|