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Use the right internal format for GL_ARB_texture_rectangle

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When ClutterGLXTexturePixmap uses GL_ARB_texture_rectangle,
it needs to pass the right internal format (GL_RGB or GL_RGBA)
when it initializes the texture with glTexImage2D() or later
handling won't recognize the alpha channel.

http://bugzilla.openedhand.com/show_bug.cgi?id=1586

Signed-off-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Owen W. Taylor 2009-05-06 23:35:01 -04:00 committed by Robert Bragg
parent 2c6719502a
commit 5481681e5c
1 changed files with 5 additions and 2 deletions
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5
clutter/glx/clutter-glx-texture-pixmap.c
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@ -331,7 +331,10 @@ create_cogl_texture (ClutterTexture *texture,
cogl_format = COGL_PIXEL_FORMAT_RGB_888;
}
else
{
g_critical ("Can't create a TFP cogl texture for pixmap with depth < 24");
return FALSE;
}
/* We want to use the GL_ARB_texture_rectangle extension on some
chipsets because GL_ARB_texture_non_power_of_two is not always
@ -345,7 +348,7 @@ create_cogl_texture (ClutterTexture *texture,
glGenTextures (1, &tex);
glBindTexture (CGL_TEXTURE_RECTANGLE_ARB, tex);
glTexImage2D (CGL_TEXTURE_RECTANGLE_ARB, 0,
GL_RGB, width, height,
gl_format, width, height,
0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
handle = cogl_texture_new_from_foreign (tex, CGL_TEXTURE_RECTANGLE_ARB,