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This commit doesn't add anything interesting for anyone not interested in tracing down completely absurd bugs.

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git-svn-id: https://svn.eduke32.com/eduke32@1734 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2010-12-07 19:05:55 +00:00
parent 7bd0e9709a
commit efc0f2ec75
1 changed files with 26 additions and 0 deletions
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26
polymer/eduke32/build/src/engine.c
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@ -11707,6 +11707,10 @@ void drawline256(int32_t x1, int32_t y1, int32_t x2, int32_t y2, char col)
} }
} }
//static int engine_watchme=0;
//#define WATCHME engine_watchme|=(odx!=dx||ody!=dy);
static void attach_here() {}
// //
// drawline16 // drawline16
// //
@ -11720,35 +11724,57 @@ int32_t drawline16(int32_t x1, int32_t y1, int32_t x2, int32_t y2, char col)
uint32_t patc=0; uint32_t patc=0;
intptr_t p; intptr_t p;
int32_t odx,ody;
dx = x2-x1; dx = x2-x1;
dy = y2-y1; dy = y2-y1;
odx=dx;
ody=dy;
if (dx >= 0) if (dx >= 0)
{ {
if (x1 >= xres || x2 < 0) return 0; if (x1 >= xres || x2 < 0) return 0;
//WATCHME
if (x1 < 0) { if (dy) y1 += scale(0-x1,dy,dx); x1 = 0; } if (x1 < 0) { if (dy) y1 += scale(0-x1,dy,dx); x1 = 0; }
//WATCHME
if (x2 >= xres) { if (dy) y2 += scale(xres-1-x2,dy,dx); x2 = xres-1; } if (x2 >= xres) { if (dy) y2 += scale(xres-1-x2,dy,dx); x2 = xres-1; }
//WATCHME
} }
else else
{ {
if (x2 >= xres || x1 < 0) return 0; if (x2 >= xres || x1 < 0) return 0;
//WATCHME
if (x2 < 0) { if (dy) y2 += scale(0-x2,dy,dx); x2 = 0; } if (x2 < 0) { if (dy) y2 += scale(0-x2,dy,dx); x2 = 0; }
//WATCHME
if (x1 >= xres) { if (dy) y1 += scale(xres-1-x1,dy,dx); x1 = xres-1; } if (x1 >= xres) { if (dy) y1 += scale(xres-1-x1,dy,dx); x1 = xres-1; }
//WATCHME
} }
if (dy >= 0) if (dy >= 0)
{ {
if (y1 >= ydim16 || y2 < 0) return 0; if (y1 >= ydim16 || y2 < 0) return 0;
//WATCHME
if (y1 < 0) { if (dx) x1 += scale(0-y1,dx,dy); y1 = 0; if (x1 < 0) x1 = 0; } if (y1 < 0) { if (dx) x1 += scale(0-y1,dx,dy); y1 = 0; if (x1 < 0) x1 = 0; }
//WATCHME
if (y2 >= ydim16) { if (dx) x2 += scale(ydim16-1-y2,dx,dy); y2 = ydim16-1; if (x2 < 0) x2 = 0; } if (y2 >= ydim16) { if (dx) x2 += scale(ydim16-1-y2,dx,dy); y2 = ydim16-1; if (x2 < 0) x2 = 0; }
//WATCHME
} }
else else
{ {
if (y2 >= ydim16 || y1 < 0) return 0; if (y2 >= ydim16 || y1 < 0) return 0;
//WATCHME
if (y2 < 0) { if (dx) x2 += scale(0-y2,dx,dy); y2 = 0; if (x2 < 0) x2 = 0; } if (y2 < 0) { if (dx) x2 += scale(0-y2,dx,dy); y2 = 0; if (x2 < 0) x2 = 0; }
//WATCHME
if (y1 >= ydim16) { if (dx) x1 += scale(ydim16-1-y1,dx,dy); y1 = ydim16-1; if (x1 < 0) x1 = 0; } if (y1 >= ydim16) { if (dx) x1 += scale(ydim16-1-y1,dx,dy); y1 = ydim16-1; if (x1 < 0) x1 = 0; }
//WATCHME
} }
if (x1<0||x1>=xres || x2<0||x2>=xres) attach_here();
//WATCHME
//if (odx!=dx || ody!=dy)
// *(int*)123=234;
dx = klabs(x2-x1)+1; dy = klabs(y2-y1)+1; dx = klabs(x2-x1)+1; dy = klabs(y2-y1)+1;
if (dx >= dy) if (dx >= dy)
{ {