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SCI/newgui: changing undithering logic again, palette now uses decoded color-combinations, fixup happens during dithering run on undithered mode

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svn-id: r44845
This commit is contained in:
Martin Kiewitz 2009-10-09 20:21:21 +00:00
parent 5801dd2064
commit 23887e9735
2 changed files with 36 additions and 17 deletions
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12
engines/sci/gui/gui_palette.cpp
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@ -143,7 +143,7 @@ bool SciGuiPalette::setAmiga() {
void SciGuiPalette::setEGA() {
int i;
byte color, color1, color2;
byte color1, color2;
_sysPalette.colors[1].r = 0x000; _sysPalette.colors[1].g = 0x000; _sysPalette.colors[1].b = 0x0AA;
_sysPalette.colors[2].r = 0x000; _sysPalette.colors[2].g = 0x0AA; _sysPalette.colors[2].b = 0x000;
_sysPalette.colors[3].r = 0x000; _sysPalette.colors[3].g = 0x0AA; _sysPalette.colors[3].b = 0x0AA;
@ -165,13 +165,11 @@ void SciGuiPalette::setEGA() {
// Now setting colors 16-254 to the correct mix colors that occur when not doing a dithering run on
// finished pictures
for (i = 0x10; i <= 0xFE; i++) {
color = i;
_sysPalette.colors[color].used = 1;
color ^= color << 4;
_sysPalette.colors[i].used = 1;
color1 = i & 0x0F; color2 = i >> 4;
_sysPalette.colors[color].r = (_sysPalette.colors[color1].r >> 1) + (_sysPalette.colors[color2].r >> 1);
_sysPalette.colors[color].g = (_sysPalette.colors[color1].g >> 1) + (_sysPalette.colors[color2].g >> 1);
_sysPalette.colors[color].b = (_sysPalette.colors[color1].b >> 1) + (_sysPalette.colors[color2].b >> 1);
_sysPalette.colors[i].r = (_sysPalette.colors[color1].r >> 1) + (_sysPalette.colors[color2].r >> 1);
_sysPalette.colors[i].g = (_sysPalette.colors[color1].g >> 1) + (_sysPalette.colors[color2].g >> 1);
_sysPalette.colors[i].b = (_sysPalette.colors[color1].b >> 1) + (_sysPalette.colors[color2].b >> 1);
}
setOnScreen();
}

41
engines/sci/gui/gui_screen.cpp
View File

@ -222,17 +222,38 @@ void SciGuiScreen::dither() {
byte *screenPtr = _visualScreen;
byte *displayPtr = _displayScreen;
for (y = 0; y < _height; y++) {
for (x = 0; x < _width; x++) {
color = *screenPtr;
if (color & 0xF0) {
color ^= color << 4;
color = ((x^y) & 1) ? color >> 4 : color & 0x0F;
*screenPtr = color;
if (!_unditherState)
*displayPtr = color;
if (!_unditherState) {
// Do dithering on visual and display-screen
for (y = 0; y < _height; y++) {
for (x = 0; x < _width; x++) {
color = *screenPtr;
if (color & 0xF0) {
color ^= color << 4;
color = ((x^y) & 1) ? color >> 4 : color & 0x0F;
*screenPtr = color; *displayPtr = color;
}
screenPtr++; displayPtr++;
}
}
} else {
// Do dithering on visual screen and put decoded but undithered byte onto display-screen
for (y = 0; y < _height; y++) {
for (x = 0; x < _width; x++) {
color = *screenPtr;
if (color & 0xF0) {
color ^= color << 4;
// if decoded color wants do dither with black on left side, we turn it around
// otherwise the normal ega color would get used for display
if (color & 0xF0) {
*displayPtr = color;
} else {
*displayPtr = color << 4;
}
color = ((x^y) & 1) ? color >> 4 : color & 0x0F;
*screenPtr = color;
}
screenPtr++; displayPtr++;
}
screenPtr++; displayPtr++;
}
}
}