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Fixed a crashing bug in the multi vertical gradient code.

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dan
2000-01-17 04:30:52 +00:00
parent 14939535b6
commit 0d1935e3d8
1 changed files with 19 additions and 16 deletions
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35
wrlib/gradient.c
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@@ -398,22 +398,25 @@ renderMVGradient(unsigned width, unsigned height, RColor **colors, int count)
gg = g>>16;
bb = b>>16;
tmp = ptr;
for (x=0; x<width/4; x++) {
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
}
switch (width%4) {
case 3: *ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
case 2: *ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
case 1: *ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
}
for (j=k+1; j<width; j++) {
memcpy(ptr, tmp, width*3);
ptr += width*3;
if (k<height) {
tmp = ptr;
for (x=0; x<width/4; x++) {
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
*ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
}
switch (width%4) {
case 3: *ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
case 2: *ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
case 1: *ptr++ = rr; *ptr++ = gg; *ptr++ = bb;
default: break;
}
for (j=k+1; j<height; j++) {
memcpy(ptr, tmp, width*3);
ptr += width*3;
}
}
return image;