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-rw-r--r--engines/sci/graphics/palette.cpp29
-rw-r--r--engines/sci/graphics/palette.h2
2 files changed, 21 insertions, 10 deletions
diff --git a/engines/sci/graphics/palette.cpp b/engines/sci/graphics/palette.cpp
index f8b12d4eca..07eb7d7df1 100644
--- a/engines/sci/graphics/palette.cpp
+++ b/engines/sci/graphics/palette.cpp
@@ -187,26 +187,32 @@ void GfxPalette::setEGA() {
void GfxPalette::set(Palette *sciPal, bool force, bool forceRealMerge) {
uint32 systime = _sysPalette.timestamp;
+ bool paletteChanged;
+
if (force || sciPal->timestamp != systime) {
- merge(sciPal, &_sysPalette, force, forceRealMerge);
+ paletteChanged = merge(sciPal, &_sysPalette, force, forceRealMerge);
sciPal->timestamp = _sysPalette.timestamp;
- if (_screen->_picNotValid == 0 && systime != _sysPalette.timestamp)
+ if (paletteChanged && _screen->_picNotValid == 0 && systime != _sysPalette.timestamp)
setOnScreen();
}
}
-void GfxPalette::merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealMerge) {
+bool GfxPalette::merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealMerge) {
uint16 res;
int i,j;
+ bool paletteChanged = false;
if ((!forceRealMerge) && (getSciVersion() >= SCI_VERSION_1_1)) {
// SCI1.1+ doesnt do real merging anymore, but simply copying over the used colors from other palettes
for (i = 1; i < 255; i++) {
if (pFrom->colors[i].used) {
+ if ((pFrom->colors[i].r != pTo->colors[i].r) || (pFrom->colors[i].g != pTo->colors[i].g) || (pFrom->colors[i].b != pTo->colors[i].b)) {
+ pTo->colors[i].r = pFrom->colors[i].r;
+ pTo->colors[i].g = pFrom->colors[i].g;
+ pTo->colors[i].b = pFrom->colors[i].b;
+ paletteChanged = true;
+ }
pTo->colors[i].used = pFrom->colors[i].used;
- pTo->colors[i].r = pFrom->colors[i].r;
- pTo->colors[i].g = pFrom->colors[i].g;
- pTo->colors[i].b = pFrom->colors[i].b;
pFrom->mapping[i] = i;
}
}
@@ -218,9 +224,12 @@ void GfxPalette::merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealM
// forced palette merging or dest color is not used yet
if (force || (!pTo->colors[i].used)) {
pTo->colors[i].used = pFrom->colors[i].used;
- pTo->colors[i].r = pFrom->colors[i].r;
- pTo->colors[i].g = pFrom->colors[i].g;
- pTo->colors[i].b = pFrom->colors[i].b;
+ if ((pFrom->colors[i].r != pTo->colors[i].r) || (pFrom->colors[i].g != pTo->colors[i].g) || (pFrom->colors[i].b != pTo->colors[i].b)) {
+ pTo->colors[i].r = pFrom->colors[i].r;
+ pTo->colors[i].g = pFrom->colors[i].g;
+ pTo->colors[i].b = pFrom->colors[i].b;
+ paletteChanged = true;
+ }
pFrom->mapping[i] = i;
continue;
}
@@ -245,6 +254,7 @@ void GfxPalette::merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealM
pTo->colors[j].g = pFrom->colors[i].g;
pTo->colors[j].b = pFrom->colors[i].b;
pFrom->mapping[i] = j;
+ paletteChanged = true;
break;
}
// if still no luck - set an approximate color
@@ -255,6 +265,7 @@ void GfxPalette::merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealM
}
}
pTo->timestamp = g_system->getMillis() * 60 / 1000;
+ return paletteChanged;
}
uint16 GfxPalette::matchColor(Palette *pPal, byte r, byte g, byte b) {
diff --git a/engines/sci/graphics/palette.h b/engines/sci/graphics/palette.h
index 16b4d375d3..224c03965b 100644
--- a/engines/sci/graphics/palette.h
+++ b/engines/sci/graphics/palette.h
@@ -44,7 +44,7 @@ public:
void modifyAmigaPalette(byte *data);
void setEGA();
void set(Palette *sciPal, bool force, bool forceRealMerge = false);
- void merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealMerge);
+ bool merge(Palette *pFrom, Palette *pTo, bool force, bool forceRealMerge);
uint16 matchColor(Palette *pPal, byte r, byte g, byte b);
void getSys(Palette *pal);