Build Macros

Build macros can be defined to control the compiling process of VortexGE. The easiest way is to define those macros inside <vbtypes.h>, since this file is included by all other files. These are the build macros that can be used (categorized by function) :

1. Selecting video system :
 __USE_X11_VIDEO__
define this macro to compile the video environment with the X Window system. For now this is the only video system supported. If this macro is not defined, VortexGE will not compile.
__USE_RGB16_555__
define this macro if the R5G5B5 format for 16 bpp graphics is needed, otherwise VortexGE will use R5G6B5 as the format.

2. Selecting audio system :
__USE_DMY_AUDIO__
define this macro to compile the audio environment with dummy (NULL) audio system.
__USE_DSP_AUDIO__
define this macro to compile the audio environment with direct access to /dev/dsp. For now this is the only sound system supported.

If none of those macros is defined, VortexGE will not compile. If more than one macros are defined, the preceding macro in above list will take the priority.
                   
3. Selecting appropriate optimizations :
 __USE_QW_MEMOPS__
if _USE_ASM_ is undefined, define this macro to use  the (maybe) faster QWORD memory transfer in <fastmem.h> otherwise the standard DWORD memory transfer should be used. If _USE_ASM_ is defined, this macro will have no effect.
__USE_ASM__
define this macro to use inline assembly for performance optimization. Once this macro is defined, it can be finely tuned for some specific processor using these macros :
__USE_MMX__ :
to utilize MMX
__USE_SSE__ :
to utilize SSE and MMX
__USE_SSE2__ :
to utilize SSE2, SSE, and MMX
4. Other macros :
__USE_COLORED_MESSAGES__
define this macro to colorize the output of all message functions declared in <vmdisp.h> otherwise the standard B/W output should be used.


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