Progress Update: BFA Revamped, New Advanced MMX Drawing RoutinesI've realized that I'm going to need to go through all of my old code and update it so that it is organized and falls in line with all of my other recent coding standards (such as prefixing base functions with the letters 'Tz' to differentiate them from other library functions). In the process I will be updating the code so that it is not only easier to read, but also more efficient at run-time.
One of the major components of the base code, the Bitwise File Access routines, have been revamped and debugged to ensure that access violation crashes are less likely. It also contains much more sanity checking code and the functions will now return "failure" values if there is a problem reading in any data.
On the other side of things, I'm
completely reworking the base graphics functions
to use MMX wherever possible. I've built the two main functions that will end up being commonly used in DELTA, but they are also the most MASSIVE functions I have ever built. The first one here is 2756 lines of code, the second one is 4499 lines. These files get
really long because they are mostly raw assembly, with one CPU instruction per line.
void TzBMP_draw(BITMAP* src, BITMAP* dest, Vsx16 dx, Vsx16 dy, Hex32 TzMode, Hex32 flip);
void TzBMP_drawmasked(BITMAP* src, BITMAP* dest, PixMask* mask, Vsx16 dx, Vsx16 dy, Hex32 TzMode, Hex32 flip);
Both of these functions support flipping the bitmap horizontally and/or vertically during drawing, in ANY of the first 12 basic blender modes.
Supported Blenders:
TzModeNRM, TzModeADD, TzModeSUB, TzModeAVG, TzModeMUL, TzModeSCR, TzModeABL
TzModeAND, TzModeANDN, TzModeOR, TzModeXOR, TzModeNOTThe masked version of the drawing function allows you to pass in a pointer to a string of bits that define whether each pixel should be drawn or not.
This is all calculated linearly without any jumps in the actual calculation. However, to support this functionality I had to use another register as a bit counter, and in order to know
when the bit data pointer needs to be incremented you MUST use a jump instruction.
The Alpha Blender mode, at this point, is the bulkiest. It uses all 6 processor registers and all 8 MMX registers, too.
Cosmicman wrote:That last screen looks sweet, I hope you keep that blue and black theme going on, it has awesome contrast.
Thanks cosmicman! Yeah, there's definitely more where that came from.
Also, some of the graphics have been updated since the NitroGUI concept post, so the push buttons don't look as horrible and are more in-line with the Windows XP feel.
I could post a screenshot, except, NitroGUI is not yet in a build-able state. There are still a ton of references to the old BFA and graphics functions which throw compile errors.
DKCRE_v0.0.5.0_INI_edit.zip
It disappeared from my folder.
