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authorBrian Paul <brian.paul@tungstengraphics.com>2003-05-02 15:05:02 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2003-05-02 15:05:02 +0000
commit7357f20b1ee3ab0c58c7a20f44bf83fdfe0e256e (patch)
tree514cb30570ebf23bae7ce298b504d1f22382cf97 /docs
parentc784d87b0f07590a2bb87307ca6a264b2ec99b31 (diff)
minor updates
Diffstat (limited to 'docs')
-rw-r--r--docs/MESA_ycbcr_texture.spec15
-rw-r--r--docs/VERSIONS7
-rw-r--r--docs/osmesa.html12
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>