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Naomi: work-around for an int32 overflow bug in the renderer, makes The House of the Dead 2 / The Typing of the Dead to not crash during attract mode [Angelo Salese]

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Angelo Salese 2010-05-03 12:53:46 +00:00
parent b5fac5bcba
commit 6948662d63
1 changed files with 4 additions and 0 deletions
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src/mame/video/dc.c
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@ -1810,6 +1810,9 @@ static void render_span(bitmap_t *bitmap, texinfo *ti,
yy0 = round(y0);
yy1 = round(y1);
if((yy0 < 0 && y0 > 0) || (yy1 < 0 && y1 > 0)) //temp handling of int32 overflow, needed by hotd2/totd
return;
dy = yy0+0.5-y0;
if(0)
@ -1927,6 +1930,7 @@ static void render_tri_sorted(bitmap_t *bitmap, texinfo *ti, const vert *v0, con
v1->x, v0->x + dx02dy*dy01, v1->u, v0->u + du02dy*dy01, v1->v, v0->v + dv02dy*dy01, v1->w, v0->w + dw02dy*dy01,
dx12dy, dx02dy, du12dy, du02dy, dv12dy, dv02dy, dw12dy, dw02dy);
} else {
render_span(bitmap, ti, v0->y, v1->y,
v0->x, v0->x, v0->u, v0->u, v0->v, v0->v, v0->w, v0->w,
dx02dy, dx01dy, du02dy, du01dy, dv02dy, dv01dy, dw02dy, dw01dy);