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authorMartin Kiewitz2009-10-07 18:00:49 +0000
committerMartin Kiewitz2009-10-07 18:00:49 +0000
commit7f78a7c6beedf1750f859dba89de03d01bf5dd96 (patch)
tree9715baea4fd24ff9d264eb7fe380e940392bedd0
parent0e3b634ecbd7210af60f0ca112bd7e5e9e4711a8 (diff)
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SCI/newgui: undithering of picture now possible (just follow instructions in gui_screen.cpp)
svn-id: r44742
-rw-r--r--engines/sci/gui/gui_palette.cpp8
-rw-r--r--engines/sci/gui/gui_screen.cpp6
2 files changed, 12 insertions, 2 deletions
diff --git a/engines/sci/gui/gui_palette.cpp b/engines/sci/gui/gui_palette.cpp
index b9f75e464a..d979491d1d 100644
--- a/engines/sci/gui/gui_palette.cpp
+++ b/engines/sci/gui/gui_palette.cpp
@@ -144,6 +144,7 @@ bool SciGuiPalette::setAmiga() {
void SciGuiPalette::setEGA() {
int i;
+ 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;
@@ -162,9 +163,14 @@ void SciGuiPalette::setEGA() {
for (i = 0; i <= 15; i++) {
_sysPalette.colors[i].used = 1;
}
+ // Now setting colors 16-254 to the correct mix colors that occur when not doing a dithering run on
+ // finished pictures
for (i = 16; i <= 254; i++) {
- _sysPalette.colors[i].r = 200;
_sysPalette.colors[i].used = 1;
+ color1 = i & 0x0F; color2 = i >> 4;
+ _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();
}
diff --git a/engines/sci/gui/gui_screen.cpp b/engines/sci/gui/gui_screen.cpp
index 6f1b278739..d7933c0535 100644
--- a/engines/sci/gui/gui_screen.cpp
+++ b/engines/sci/gui/gui_screen.cpp
@@ -232,8 +232,12 @@ void SciGuiScreen::dither() {
color = *screenPtr;
if (color & 0xF0) {
color ^= color << 4;
+// remove remark to enable undithering
+// *displayPtr = color;
+ // do the actual dithering
color = ((x^y) & 1) ? color >> 4 : color & 0x0F;
- *screenPtr = color; *displayPtr = color;
+ *screenPtr = color;
+ *displayPtr = color; // put remark here to enable unditherung
}
screenPtr++; displayPtr++;
}