Re: Re: [PATCH] fbdev: colormap fixes
From: Jon Smirl <hidden>
Date: 2005-07-28 20:24:22
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On 7/28/05, Jon Smirl [off-list ref] wrote:
On 7/28/05, Geert Uytterhoeven [off-list ref] wrote:quoted
On Thu, 28 Jul 2005, Jon Smirl wrote:quoted
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 ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf