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254 lines
7 KiB
C
254 lines
7 KiB
C
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/*
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* GStreamer
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* Copyright (C) 2007 David Schleef <ds@schleef.org>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gstglbuffer.h>
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#include <gstglfilter.h>
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#include "glextensions.h"
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#define GST_CAT_DEFAULT gst_gl_convert_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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#define GST_TYPE_GL_CONVERT (gst_gl_convert_get_type())
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#define GST_GL_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_CONVERT,GstGLConvert))
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#define GST_IS_GL_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_CONVERT))
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#define GST_GL_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_CONVERT,GstGLConvertClass))
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#define GST_IS_GL_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_CONVERT))
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#define GST_GL_CONVERT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_CONVERT,GstGLConvertClass))
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typedef struct _GstGLConvert GstGLConvert;
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typedef struct _GstGLConvertClass GstGLConvertClass;
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struct _GstGLConvert
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{
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GstGLFilter filter;
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/* < private > */
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};
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struct _GstGLConvertClass
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{
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GstGLFilterClass filter_class;
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};
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static const GstElementDetails element_details = GST_ELEMENT_DETAILS ("FIXME",
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"Filter/Effect",
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"FIXME GL conversion filter",
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"FIXME <fixme@fixme.com>");
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#if 0
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#define GST_GL_VIDEO_CAPS "video/x-raw-gl"
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static GstStaticPadTemplate gst_gl_convert_src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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static GstStaticPadTemplate gst_gl_convert_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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#endif
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enum
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{
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PROP_0
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};
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_gl_convert_debug, "glconvert", 0, "glconvert element");
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GST_BOILERPLATE_FULL (GstGLConvert, gst_gl_convert, GstGLFilter,
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GST_TYPE_GL_FILTER, DEBUG_INIT);
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static void gst_gl_convert_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gl_convert_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_gl_convert_reset (GstGLConvert * filter);
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static gboolean gst_gl_convert_transform (GstGLFilter * filter,
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GstGLBuffer * outbuf, GstGLBuffer * inbuf);
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static gboolean gst_gl_convert_start (GstGLFilter * _filter);
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static gboolean gst_gl_convert_stop (GstGLFilter * _filter);
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static void
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gst_gl_convert_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_set_details (element_class, &element_details);
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#if 0
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_convert_src_pad_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_convert_sink_pad_template));
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#endif
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}
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static void
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gst_gl_convert_class_init (GstGLConvertClass * klass)
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{
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GObjectClass *gobject_class;
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gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_gl_convert_set_property;
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gobject_class->get_property = gst_gl_convert_get_property;
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GST_GL_FILTER_CLASS (klass)->transform = gst_gl_convert_transform;
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GST_GL_FILTER_CLASS (klass)->start = gst_gl_convert_start;
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GST_GL_FILTER_CLASS (klass)->stop = gst_gl_convert_stop;
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}
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static void
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gst_gl_convert_init (GstGLConvert * filter, GstGLConvertClass * klass)
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{
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gst_gl_convert_reset (filter);
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}
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static void
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gst_gl_convert_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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//GstGLConvert *filter = GST_GL_CONVERT (object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gl_convert_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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//GstGLConvert *filter = GST_GL_CONVERT (object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gl_convert_reset (GstGLConvert * filter)
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{
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}
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static gboolean
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gst_gl_convert_start (GstGLFilter * _filter)
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{
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//GstGLConvert *convert = GST_GL_CONVERT(_filter);
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return TRUE;
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}
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static gboolean
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gst_gl_convert_stop (GstGLFilter * _filter)
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{
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GstGLConvert *convert = GST_GL_CONVERT (_filter);
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gst_gl_convert_reset (convert);
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return TRUE;
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}
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static gboolean
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gst_gl_convert_transform (GstGLFilter * filter, GstGLBuffer * outbuf,
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GstGLBuffer * inbuf)
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{
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//GstGLConvert *convert = GST_GL_CONVERT(filter);
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glDisable (GL_CULL_FACE);
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glEnableClientState (GL_TEXTURE_COORD_ARRAY);
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glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
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glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
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glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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if (inbuf->is_yuv) {
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#ifdef GL_POST_COLOR_MATRIX_RED_BIAS
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const double matrix[16] = {
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1.16438, 1.6321, -0.00107909, 0,
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1.13839, -0.813005, -0.39126, 0,
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1.13839, 0.00112726, 2.01741, 0,
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0, 0, 0, 1
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};
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GST_DEBUG ("applying YUV->RGB conversion");
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glMatrixMode (GL_COLOR);
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glLoadMatrixd (matrix);
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/* same */
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glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, -0.873494);
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glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, 0.531435);
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glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, -1.08629);
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#else
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g_assert_not_reached ();
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#endif
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}
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glColor4f (1, 0, 1, 1);
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glBegin (GL_QUADS);
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glNormal3f (0, 0, -1);
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glTexCoord2f (inbuf->width, 0);
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glVertex3f (1.0, -1.0, 0);
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glTexCoord2f (0, 0);
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glVertex3f (-1.0, -1.0, 0);
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glTexCoord2f (0, inbuf->height);
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glVertex3f (-1.0, 1.0, 0);
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glTexCoord2f (inbuf->width, inbuf->height);
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glVertex3f (1.0, 1.0, 0);
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glEnd ();
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if (inbuf->is_yuv) {
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#ifdef GL_POST_COLOR_MATRIX_RED_BIAS
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glMatrixMode (GL_COLOR);
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glLoadIdentity ();
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glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, 0);
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glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, 0);
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glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, 0);
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#else
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g_assert_not_reached ();
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#endif
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}
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return TRUE;
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}
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