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Applied my own fix for bug #1519667 ("DOTT: Graphic glitches while kite comes

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down") after discussing it with Kirben.

svn-id: r23466
This commit is contained in:
Torbjörn Andersson 2006-07-10 06:29:10 +00:00
parent 53aa4f054a
commit 357b311c94
1 changed files with 9 additions and 4 deletions
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13
engines/scumm/costume.cpp
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@ -131,6 +131,11 @@ byte ClassicCostumeRenderer::mainRoutine(int xmoveCur, int ymoveCur) {
v1.scaleXstep = 1;
}
// It's possible that the scale indexes will overflow and wrap
// around to zero, so it's important that we use the same
// method of accessing it both when calculating the size of the
// scaled costume, and when drawing it. See bug #1519667.
if (_mirror) {
/* Adjust X position */
startScaleIndexX = _scaleIndexX = scaletableSize - xmoveCur;
@ -418,7 +423,7 @@ void ClassicCostumeRenderer::proc3(Codec1 &v1) {
byte len, maskbit;
int y;
uint color, height, pcolor;
const byte *scaleytab;
byte scaleIndexY;
bool masked;
y = v1.y;
@ -428,7 +433,7 @@ void ClassicCostumeRenderer::proc3(Codec1 &v1) {
color = v1.repcolor;
height = _height;
scaleytab = &v1.scaletable[_scaleIndexY];
scaleIndexY = _scaleIndexY;
maskbit = revBitMask(v1.x & 7);
mask = v1.mask_ptr + v1.x / 8;
@ -443,7 +448,7 @@ void ClassicCostumeRenderer::proc3(Codec1 &v1) {
len = *src++;
do {
if (_scaleY == 255 || *scaleytab++ < _scaleY) {
if (_scaleY == 255 || v1.scaletable[scaleIndexY++] < _scaleY) {
masked = (y < 0 || y >= _out.h) || (v1.mask_ptr && (mask[0] & maskbit));
if (color && !masked) {
@ -466,7 +471,7 @@ void ClassicCostumeRenderer::proc3(Codec1 &v1) {
height = _height;
y = v1.y;
scaleytab = &v1.scaletable[_scaleIndexY];
scaleIndexY = _scaleIndexY;
if (_scaleX == 255 || v1.scaletable[_scaleIndexX] < _scaleX) {
v1.x += v1.scaleXstep;