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| author | Bertrand Augereau | 2011-11-16 17:30:38 +0100 |
|---|---|---|
| committer | Bertrand Augereau | 2011-11-16 17:50:51 +0100 |
| commit | 1ef77a580fe382f002dad6d0ae38ab43e4d2540b (patch) | |
| tree | 60de051906b650cd4c173ea3e612ba1faf341539 /engines/dreamweb/vgafades.cpp | |
| parent | 82cc00923bb302cfe334c05646c07f385bce66fc (diff) | |
| download | scummvm-rg350-1ef77a580fe382f002dad6d0ae38ab43e4d2540b.tar.gz scummvm-rg350-1ef77a580fe382f002dad6d0ae38ab43e4d2540b.tar.bz2 scummvm-rg350-1ef77a580fe382f002dad6d0ae38ab43e4d2540b.zip | |
DREAMWEB: 'fadecalculation' ported to C++
Diffstat (limited to 'engines/dreamweb/vgafades.cpp')
| -rw-r--r-- | engines/dreamweb/vgafades.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/engines/dreamweb/vgafades.cpp b/engines/dreamweb/vgafades.cpp index 79a7cce389..abb1a9b1a6 100644 --- a/engines/dreamweb/vgafades.cpp +++ b/engines/dreamweb/vgafades.cpp @@ -56,5 +56,28 @@ void DreamGenContext::paltoendpal() { memcpy(endPalette(), mainPalette(), 256*3); } +void DreamGenContext::fadecalculation() { + if (data.byte(kFadecount) == 0) { + data.byte(kFadedirection) = 0; + return; + } + + uint8 *startPal = startPalette(); + const uint8 *endPal = endPalette(); + for (size_t i = 0; i < 256 * 3; ++i, ++si, ++di) { + uint8 s = startPal[i]; + uint8 e = endPal[i]; + if (s == e) + continue; + else if (s > e) + --startPal[i]; + else { + if (data.byte(kFadecount) <= e) + ++startPal[i]; + } + } + --data.byte(kFadecount); +} + } /*namespace dreamgen */ |