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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "cine/cine.h"
#include "cine/various.h"
namespace Cine {
uint16 palEntriesCount;
PalEntry *palPtr = NULL;
static byte paletteBuffer1[16];
static byte paletteBuffer2[16];
void loadPal(const char *fileName) {
char buffer[20];
removeExtention(buffer, fileName);
strcat(buffer, ".PAL");
if (palPtr) {
free(palPtr);
palPtr = NULL;
}
palEntriesCount = 0;
Common::File palFileHandle;
if (!palFileHandle.open(buffer))
error("loadPal(): Cannot open file %s", fileName);
palEntriesCount = palFileHandle.readUint16LE();
palFileHandle.readUint16LE(); // entry size
palPtr = (PalEntry *)malloc(palEntriesCount * sizeof(PalEntry));
assert(palPtr);
for (int i = 0; i < palEntriesCount; ++i) {
palFileHandle.read(palPtr[i].name, 10);
palFileHandle.read(palPtr[i].pal1, 16);
palFileHandle.read(palPtr[i].pal2, 16);
}
palFileHandle.close();
}
int16 findPaletteFromName(const char *fileName) {
char buffer[10];
uint16 position = 0;
uint16 i;
strcpy(buffer, fileName);
while (position < strlen(fileName)) {
if (buffer[position] > 'a' && buffer[position] < 'z') {
buffer[position] += 'A' - 'a';
}
position++;
}
for (i = 0; i < palEntriesCount; i++) {
if (!strcmp(buffer, palPtr[i].name)) {
return i;
}
}
return -1;
}
void loadRelatedPalette(const char *fileName) {
char localName[16];
byte i;
int16 paletteIndex;
removeExtention(localName, fileName);
paletteIndex = findPaletteFromName(localName);
if (paletteIndex == -1) {
for (i = 0; i < 16; i++) { // generate default palette
paletteBuffer1[i] = paletteBuffer2[i] = (i << 4) + i;
}
} else {
assert(paletteIndex < palEntriesCount);
memcpy(paletteBuffer1, palPtr[paletteIndex].pal1, 16);
memcpy(paletteBuffer2, palPtr[paletteIndex].pal2, 16);
}
}
void palRotate(uint16 *pal, byte a, byte b, byte c) {
assert(pal);
if (c == 1) {
uint16 currentColor = pal[b];
for (int i = b; i > a; i--) {
pal[i] = pal[i - 1];
}
pal[a] = currentColor;
}
}
void palRotate(byte *pal, byte a, byte b, byte c) {
assert(pal);
if (c == 1) {
byte currentR = pal[3 * b + 0];
byte currentG = pal[3 * b + 1];
byte currentB = pal[3 * b + 2];
for (int i = b; i > a; i--) {
pal[3 * i + 0] = pal[3 * (i - 1) + 0];
pal[3 * i + 1] = pal[3 * (i - 1) + 1];
pal[3 * i + 2] = pal[3 * (i - 1) + 2];
}
pal[3 * a + 0] = currentR;
pal[3 * a + 1] = currentG;
pal[3 * a + 2] = currentB;
}
}
uint16 transformColor(uint16 baseColor, int r, int g, int b) {
int8 oriR = CLIP( (baseColor & 0x007) + b, 0, 7);
int8 oriG = CLIP(((baseColor & 0x070) >> 4) + g, 0, 7);
int8 oriB = CLIP(((baseColor & 0x700) >> 8) + r, 0, 7);
return oriR | (oriG << 4) | (oriB << 8);
}
void transformPaletteRange(uint16 *dstPal, uint16 *srcPal, int startColor, int stopColor, int r, int g, int b) {
assert(srcPal && dstPal);
for (int i = startColor; i <= stopColor; i++) {
dstPal[i] = transformColor(srcPal[i], r, g, b);
}
}
void transformPaletteRange(byte *dstPal, byte *srcPal, int startColor, int stopColor, int r, int g, int b) {
assert(srcPal && dstPal);
for (int i = startColor; i <= stopColor; i++) {
dstPal[3 * i + 0] = CLIP(srcPal[3 * i + 0] + r * 32, 0, 255);
dstPal[3 * i + 1] = CLIP(srcPal[3 * i + 1] + g * 32, 0, 255);
dstPal[3 * i + 2] = CLIP(srcPal[3 * i + 2] + b * 32, 0, 255);
}
}
} // End of namespace Cine
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