diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2002-03-08 19:27:17 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2002-03-08 19:27:17 +0000 |
| commit | b43a828ad44d0ff092c667f0ba289b8200aef22c (patch) | |
| tree | 4e98ce42d6eff3fc136e26f64f6c20e74c27f510 /docs | |
| parent | 7fd50afbbf8bb36642efe0254706039af3c9c588 (diff) | |
DOS driver updates from Daniel Borca
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/README.DJ | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/docs/README.DJ b/docs/README.DJ index e20454a3d2..8b3a0f5998 100644 --- a/docs/README.DJ +++ b/docs/README.DJ @@ -1,4 +1,4 @@ - Mesa 4.0.1 DOS/DJGPP Port version 0.2
+ Mesa 4.0.1 DOS/DJGPP Port version 0.3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -6,13 +6,7 @@ Description:
~~~~~~~~~~~~
-This is the DOS port of MESA 4.0, for DJGPP programmers... It features some
-sort of hardware acceleration, but it's pretty thin: it is entirely based on
-VBEAF.DRV from the FreeBE/AF project (http://www.talula.demon.co.uk/freebe/).
-Note that SciTech's driver isn't supported because I hate the `nearptr' hack.
-Anyway, these drivers don't provide ANY 3D function :-( Moreover, it seems to
-me the FreeBE/AF project is not really up to date... Well, it's not much, my
-intention was to open the door ;-)
+Well, guess what... this is the DOS port of MESA 4.0, for DJGPP fans... Whoa!
@@ -54,17 +48,11 @@ style :-( Sorry! Pitfalls:
1. The current version supports only RGB[A] modes, for it made no sense to me
to endorse color-index (aka palette) modes.
-2. Double-buffered uses page flipping if acceleration is available, else falls
- back to virtual buffer.
-3. Single-buffered is not allowed with 24-bit modes, because direct access was
- wrong and fixing it would mean to slow down the other routines; until this
- is really, really necessary, it won't get reimplemented.
-4. Another weird "feature" is that buffer width must be multiple of 4 (I'm a
+2. Single-buffered is not allowed at all. Until I can find a way to use *REAL*
+ hardware acceleration, it won't get implemented.
+3. Another weird "feature" is that buffer width must be multiple of 4 (I'm a
lazy programmer and I found that the easiest way to keep buffer handling at
peak performance ;-).
-5. The FreeBE/AF driver is searched in the current directory only; therefore,
- to disable hardware acceleration, make sure you don't have VBEAF.DRV where
- your application resides.
@@ -123,6 +111,8 @@ v0.2 feb-2002 + fast triangle rasterizers + glut has now an internal timer
* glut changed to support multi-window (unfinished)
! minor PC_HW corrections
+v0.3 mar-2002 - removed FreeBE/AF code
+ - removed single-buffer modes
|