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| author | uruk | 2014-07-29 13:25:13 +0200 |
|---|---|---|
| committer | uruk | 2014-07-29 13:25:13 +0200 |
| commit | cee669e76325dd9f6dca12262faf61cbe0392828 (patch) | |
| tree | 75703b083c14f8a7c2dd8506407de6f17bc5ffe5 /engines/cge2/vga13h.cpp | |
| parent | 95854c3a5743564aa2ef3e7c1d8ef21156ae7f2e (diff) | |
| download | scummvm-rg350-cee669e76325dd9f6dca12262faf61cbe0392828.tar.gz scummvm-rg350-cee669e76325dd9f6dca12262faf61cbe0392828.tar.bz2 scummvm-rg350-cee669e76325dd9f6dca12262faf61cbe0392828.zip | |
CGE2: Implement setAutoColors().
Add a redefinition of closest() to do so.
Diffstat (limited to 'engines/cge2/vga13h.cpp')
| -rw-r--r-- | engines/cge2/vga13h.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/engines/cge2/vga13h.cpp b/engines/cge2/vga13h.cpp index 1cd2c95468..62b070dcac 100644 --- a/engines/cge2/vga13h.cpp +++ b/engines/cge2/vga13h.cpp @@ -913,6 +913,28 @@ uint8 Vga::closest(Dac *pal, const uint8 colR, const uint8 colG, const uint8 col #undef f } +uint8 Vga::closest(Dac *pal, Dac x) { + int exp = (sizeof(long) * 8 - 1); + long D = (1 << exp) - 1; // Maximume value of long. + long R = x._r; + long G = x._g; + long B = x._b; + int idx; + for (int n = 0; n < 256; n++) { + long dR = R - pal[n]._r; + long dG = G - pal[n]._g; + long dB = B - pal[n]._b, + d = dR * dR + dG * dG + dB * dB; + if (d < D) { + idx = n; + D = d; + if (!d) + break; + } + } + return idx; +} + uint8 *Vga::glass(Dac *pal, const uint8 colR, const uint8 colG, const uint8 colB) { uint8 *x = (uint8 *)malloc(256); if (x) { |