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Patch to _PUTIMAGE so STEP will work with it once again in GL.

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SMcNeill 2014-09-26 12:19:55 -04:00
parent 2c97e85402
commit c100a8b8b9
1 changed files with 53 additions and 0 deletions
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53
internal/c/libqb.cpp
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@ -4996,6 +4996,59 @@ void sub__putimage(double f_dx1,double f_dy1,double f_dx2,double f_dy2,int32 src
//quick references
sw=s->width; sh=s->height; dw=d->width; dh=d->height;
//change coordinates according to step
if (passed&2){f_dx1=d->x+f_dx1; f_dy1=d->y+f_dy1;}
if (passed&16){f_dx2=f_dx1+f_dx2; f_dy2=f_dy1+f_dy2;}
if (passed&256){f_sx1=s->x+f_sx1; f_sy1=s->y+f_sy1;}
if (passed&1024){f_sx2=f_sx1+f_sx2; f_sy2=f_sy1+f_sy2;}
//Here we calculate what our final point is going to be and put that value into the _DEST x/y so we can get STEP back correctly on the next call.
//or something like that... I have no idea how to explain what the heck I'm gdoing here!
//Basically I'm just trying to update the x/y point that we last plot to on our screen so we can pick it back up and use it again...
if (passed&4){
//we entered both dest numbers. Our last point plotted should be f_dx2/f_dy2
d->x=f_dx2;
d->y=f_dy2;
}
else{
if (passed&1){
//we only sent it the first dest value. We want to put our rectangle on a portion of the screen starting at this point
if (passed&512) {
//we have all the source values. We want to put that rectangle over to dest starting at that point
d->x=f_dx1+abs(f_sx2-f_sx1);
d->y=f_dy1+abs(f_sy2-f_sy1);
}
else{
//we want to go from f_sx1,F_sx2 to the edge of the screen and put it over to dest starting at that point
d->x=f_dx1+abs(sw-f_sx1);
d->y=f_dy1+abs(sh-f_sy1);
}
}
else{
//we never sent the first source value. We want to put the image over the whole screen.
d->x=dw;
d->y=dh;
}
}
//And here we update our source page information so the STEP will work properly there as well.
//This seems a little simpler logic
if (passed&512){
//we sent it the stop coordinate of where we're reading from
s->x = f_sx2;
s->y = f_sy2;
}
else{
//we didn't and we need to have it copy from wherever the starting point is to the bottom right of the screen.
//so our final point read will be the source width/height
s->x = sw;
s->y = sh;
}
//resolve coordinates
if (passed&1){//dx1,dy1
if (d->clipping_or_scaling){