[gst-cvs] gst-plugins-gl: gloverlay: add support to use RGB png images

[Julien Isorce]

Module: gst-plugins-gl
Branch: master
Commit: 18f5c4875006606b28aa9aa366abbc5dd1e16b60
URL:    http://cgit.freedesktop.org/gstreamer/gst-plugins-gl/commit/?id=18f5c4875006606b28aa9aa366abbc5dd1e16b60

Author: Anthony Violo <anthony.violo at ubicast.eu>
Date:   Mon Sep 21 10:51:47 2009 +0200

gloverlay: add support to use RGB png images

Previously restricted to RGBA, now gloverlay can also handle a RGB image.

---

 gst/gl/gstgloverlay.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/gst/gl/gstgloverlay.c b/gst/gl/gstgloverlay.c
index 8d47220..53abecb 100644
--- a/gst/gl/gstgloverlay.c
+++ b/gst/gl/gstgloverlay.c
@@ -393,6 +393,7 @@ gst_gl_overlay_loader (GstGLFilter * filter)
   png_FILE_p fp = NULL;
   guint y = 0;
   guchar **rows = NULL;
+  gint filler;
 
   if (!filter->display)
     return TRUE;
@@ -425,6 +426,12 @@ gst_gl_overlay_loader (GstGLFilter * filter)
   png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
       &interlace_type, int_p_NULL, int_p_NULL);
 
+  if (color_type == PNG_COLOR_TYPE_RGB) {
+    filler = 0xff;
+    png_set_filler (png_ptr, filler, PNG_FILLER_AFTER);
+    color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+  }
+
   if (color_type != PNG_COLOR_TYPE_RGB_ALPHA) {
     fclose (fp);
     png_destroy_read_struct (&png_ptr, png_infopp_NULL, png_infopp_NULL);