this repo has no description
#509: check cursor bounds
+10
-9
+10
-9
src/studio/studio.c
+10
-9
src/studio/studio.c
···
1957
1957
const tic_palette* pal = &bank->palette.scn;
1958
1958
const tic_tile* tile = &bank->sprites.data[tic->ram.vram.vars.cursor.sprite];
1959
1959
1960
-
u32 *dst = tic->screen + (m->x - hot.x) + (m->y - hot.y) * TIC80_FULLWIDTH,
1961
-
*end = tic->screen + TIC80_FULLWIDTH * TIC80_FULLHEIGHT;
1960
+
tic_point s = {m->x - hot.x, m->y - hot.y};
1961
+
u32* dst = tic->screen + TIC80_FULLWIDTH * s.y + s.x;
1962
1962
1963
-
for(s32 src = 0; src != TIC_SPRITESIZE * TIC_SPRITESIZE; dst += TIC80_FULLWIDTH - TIC_SPRITESIZE)
1964
-
for(s32 i = 0; i != TIC_SPRITESIZE; ++i, ++dst)
1965
-
{
1966
-
u8 c = tic_tool_peek4(tile->data, src++);
1967
-
if(dst < end && c)
1968
-
*dst = tic_rgba(&pal->colors[c]);
1969
-
}
1963
+
for(s32 y = s.y, endy = MIN(y + TIC_SPRITESIZE, TIC80_FULLHEIGHT), i = 0; y != endy; ++y, dst += TIC80_FULLWIDTH - TIC_SPRITESIZE)
1964
+
for(s32 x = s.x, endx = x + TIC_SPRITESIZE; x != endx; ++x, ++i, ++dst)
1965
+
if(x < TIC80_FULLWIDTH)
1966
+
{
1967
+
u8 c = tic_tool_peek4(tile->data, i);
1968
+
if(c)
1969
+
*dst = tic_rgba(&pal->colors[c]);
1970
+
}
1970
1971
}
1971
1972
}
1972
1973