Messages in this thread | | | Date | Thu, 28 Jul 2005 16:21:19 -0400 | From | Jon Smirl <> | Subject | Re: [Linux-fbdev-devel] Re: [PATCH] fbdev: colormap fixes |
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On 7/28/05, Jon Smirl <jonsmirl@gmail.com> wrote: > On 7/28/05, Geert Uytterhoeven <geert@linux-m68k.org> wrote: > > On Thu, 28 Jul 2005, Jon Smirl wrote: > > > I can't see a way to query how long of cmap the device supports using > > > the current fbdev ioctls. > > > > Look at the lengths of the color bitfields? > > Which color bitfields? Does hardware that supports 10bit cmap also > support a 10:10:10 framebuffer? If you can't do 10:10:10 how do the > 10bit cmaps work? Does alpha matter in a 10:10:10 scanout buffer?
From the OpenGL headers I can see the answer to my questions... #define GL_RGB10 0x8052 #define GL_RGB10_A2 0x8059
OpenGL supports all of these: #define GL_RGB10 0x8052 #define GL_RGB12 0x8053 #define GL_RGB16 0x8054 #define GL_RGB10_A2 0x8059 #define GL_RGBA12 0x805A #define GL_RGBA16 0x805B
Are there 12 and 16 bit cmaps too?
-- Jon Smirl jonsmirl@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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