stella

A multi-platform Atari 2600 Emulator

2600 atari atari-2600 atari2600 emulation emulator emulators

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stephena 6983686e91 Added the ability to change the aspect ratio of the screen in the SDL OpenGL port. Normally, the window is double the native TIA frame width, so we always get a ratio of 2.0 (2:1). Now, if you're using OpenGL mode, the '-gl_aspect' commandline argument can take a decimal number representing the ratio you want to use. For example, normal TV mode would be 1.3333 (4:3). Depending on the resolution you use, you can make the window look much more like the original Atari. I find that in 1600x1200 mode, an aspect of 1.6 looks quite authentic. This is only supported in the SDL OpenGL port for now, since changing the aspect took only 1 line of code (I love 3D graphics :) It may never be supported in software SDL, since it is quite a bit harder to do it in software. Ditto for the Cyberstella DirectDraw7 code (it will probably never be implemented, unless hardware scaling is available). If/when I get around to the Direct3D port, it will be trivial to do there as well. git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@211 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba	2003-11-17 17:43:39 +00:00
CVSROOT	Add syncmail as a admin file to checkout.	2001-12-27 20:02:13 +00:00
stella	Added the ability to change the aspect ratio of the screen in the SDL	2003-11-17 17:43:39 +00:00

stephena 6983686e91 Added the ability to change the aspect ratio of the screen in the SDL

OpenGL port.  Normally, the window is double the native TIA frame
width, so we always get a ratio of 2.0 (2:1).

Now, if you're using OpenGL mode, the '-gl_aspect' commandline argument
can take a decimal number representing the ratio you want to use.
For example, normal TV mode would be 1.3333 (4:3).

Depending on the resolution you use, you can make the window look much
more like the original Atari.  I find that in 1600x1200 mode, an
aspect of 1.6 looks quite authentic.

This is only supported in the SDL OpenGL port for now, since changing
the aspect took only 1 line of code (I love 3D graphics :)  It may
never be supported in software SDL, since it is quite a bit harder
to do it in software.

Ditto for the Cyberstella DirectDraw7 code (it will probably never be
implemented, unless hardware scaling is available).  If/when I get
around to the Direct3D port, it will be trivial to do there as well.


git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@211 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba

2003-11-17 17:43:39 +00:00

CVSROOT

Add syncmail as a admin file to checkout.

2001-12-27 20:02:13 +00:00

stella

Added the ability to change the aspect ratio of the screen in the SDL

2003-11-17 17:43:39 +00:00