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cPalette::ClosestColor() now treats fully transparent colors as "equal"; improved cDvbSpuBitmap::getMinBpp()

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Klaus Schmidinger
2010-01-17 13:48:44 +01:00
parent 27939266f1
commit 40bb2f21e0
4 changed files with 11 additions and 5 deletions
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8
osd.c
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@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: osd.c 2.7 2010/01/17 13:27:24 kls Exp $
* $Id: osd.c 2.8 2010/01/17 13:43:02 kls Exp $
*/
#include "osd.h"
@@ -145,12 +145,14 @@ int cPalette::ClosestColor(tColor Color, int MaxDiff) const
int R1 = (Color & 0x00FF0000) >> 16;
int G1 = (Color & 0x0000FF00) >> 8;
int B1 = (Color & 0x000000FF);
for (int i = 0; i < numColors; i++) {
for (int i = 0; i < numColors && d > 0; i++) {
int A2 = (color[i] & 0xFF000000) >> 24;
int R2 = (color[i] & 0x00FF0000) >> 16;
int G2 = (color[i] & 0x0000FF00) >> 8;
int B2 = (color[i] & 0x000000FF);
int diff = (abs(A1 - A2) << 1) + (abs(R1 - R2) << 1) + (abs(G1 - G2) << 1) + (abs(B1 - B2) << 1);
int diff = 0;
if (A1 && A2) // fully transparent colors are considered equal
diff = (abs(A1 - A2) << 1) + (abs(R1 - R2) << 1) + (abs(G1 - G2) << 1) + (abs(B1 - B2) << 1);
if (diff < d) {
d = diff;
n = i;