diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/MESA_ycbcr_texture.spec | 15 | ||||
| -rw-r--r-- | docs/VERSIONS | 7 | ||||
| -rw-r--r-- | docs/osmesa.html | 12 |
3 files changed, 21 insertions, 13 deletions
diff --git a/docs/MESA_ycbcr_texture.spec b/docs/MESA_ycbcr_texture.spec index a0ef310dc6..1fbb1e135c 100644 --- a/docs/MESA_ycbcr_texture.spec +++ b/docs/MESA_ycbcr_texture.spec @@ -33,9 +33,9 @@ Overview This extension supports texture images in the YCbCr format. There is no support for converting YCbCr images to RGB or vice versa. The - intention is for YCbCr image data to be directly sent to the renderer - without any pixel transfer operations. Only 2D texture images are - supported (not glDrawPixels, glReadPixels, etc). + texture's YCbCr colors are converted to RGB during texture sampling. + Only 2D texture images are supported (not glDrawPixels, glReadPixels, + etc). A YCbCr pixel (texel) is a 16-bit unsigned short with two components. The first component is luminance (Y). For pixels in even-numbered @@ -61,12 +61,12 @@ New Tokens Accepted by the <internalFormat> and <format> parameters of TexImage2D and TexSubImage2D: - GL_YCBCR_MESA 0x8757 + YCBCR_MESA 0x8757 Accepted by the <type> parameter of TexImage2D and TexSubImage2D: - GL_UNSIGNED_SHORT_8_8_MESA 0x85BA /* same as Apple's */ - GL_UNSIGNED_SHORT_8_8_REV_MESA 0x85BB /* same as Apple's */ + UNSIGNED_SHORT_8_8_MESA 0x85BA /* same as Apple's */ + UNSIGNED_SHORT_8_8_REV_MESA 0x85BB /* same as Apple's */ Additions to Chapter 2 of the OpenGL 1.4 Specification (OpenGL Operation) @@ -181,7 +181,7 @@ Errors <internalFormat> is MESA_YCBCR and <border> is not zero. INVALID_OPERATION is generated by TexSubImage2D if the internal image - format is YCBCR_MESA and format is not YCBCR_MESA. + format is YCBCR_MESA and <format> is not YCBCR_MESA. INVALID_OPERATION is generated by CopyTexSubImage2D if the internal image is YCBCR_MESA. @@ -195,3 +195,4 @@ New State Revision History 20 September 2002 - Initial draft + 29 April 2003 - minor updates diff --git a/docs/VERSIONS b/docs/VERSIONS index 97a44c7a7e..146f74f90b 100644 --- a/docs/VERSIONS +++ b/docs/VERSIONS @@ -1,4 +1,4 @@ -$Id: VERSIONS,v 1.124 2003/03/30 16:20:23 brianp Exp $ +$Id: VERSIONS,v 1.125 2003/05/02 15:05:02 brianp Exp $ Mesa Version History @@ -1125,9 +1125,12 @@ Mesa Version History - GL_SGI_texture_color_table extension (Eric Plante) - GL_NV_fragment_program extension - new X86 feature detection code (Petr Sebor) + - less memory used for display lists and vertex buffers + - demo of per-pixel lighting with a fragment program (demos/fplight.c) Bug fixes: - really enable OpenGL 1.4 features in DOS driver. - fixed issues in glDrawPixels and glCopyPixels for very wide images Changes: - dropped API trace feature (src/Trace/) - + - documentation overhaul. merged with website content. more html. + - glxgears.c demo updated to use GLX swap rate extensions diff --git a/docs/osmesa.html b/docs/osmesa.html index ace4200113..5dc2e81f6c 100644 --- a/docs/osmesa.html +++ b/docs/osmesa.html @@ -37,25 +37,29 @@ memory. accuracy (film and IBR, for example). If you're in this situation you'll be happy to know that Mesa supports 16-bit and 32-bit color channels through the OSMesa interface. When using 16-bit channels, - channels are GLushorts and pixels occupy 8 bytes. When using 32-bit - channels, channels are GLfloats and pixels occupy 16 bytes. + channels are GLushorts and RGBA pixels occupy 8 bytes. When using 32-bit + channels, channels are GLfloats and RGBA pixels occupy 16 bytes. </p> <p> To build Mesa/OSMesa with 16-bit color channels: <pre> - cd Mesa-4.x/src + cd Mesa-5.x/src make -f Makefile.X11 clean make -f Makefile.OSMesa16 linux-osmesa16 </pre> For 32-bit channels: <pre> - cd Mesa-4.x/src + cd Mesa-5.x/src make -f Makefile.X11 clean make -f Makefile.OSMesa16 linux-osmesa32 </pre> <p> +You'll wind up with a library named libOSMesa16.so or libOSMesa32.so. +</p> + +<p> If you're not using Linux, you can easily edit Make-config and add an appropriate configuration. </p> |