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Win32: Fix Screen_FillRect() : add clipping

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Thomas Bernard 2018-06-22 13:00:26 +02:00
parent 9f9c21de21
commit 26d0b8339f
1 changed files with 18 additions and 0 deletions
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18
src/win32screen.c
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@ -346,6 +346,24 @@ void Screen_FillRect(int x, int y, int w, int h, byte color)
int i; int i;
byte * ptr; byte * ptr;
if (x < 0)
{
w += x;
x = 0;
}
if (y < 0)
{
h += y;
y = 0;
}
if (x > Windows_DIB_width || y > Windows_DIB_height)
return;
if ((x + w) > Windows_DIB_width)
w = Windows_DIB_width - x;
if ((y + h) > Windows_DIB_height)
h = Windows_DIB_height - y;
if (w <= 0 || h <= 0)
return;
for (i = 0; i < h; i++) { for (i = 0; i < h; i++) {
ptr = Get_Screen_pixel_ptr(x, y + i); ptr = Get_Screen_pixel_ptr(x, y + i);
memset(ptr, color, w); memset(ptr, color, w);