scummvm/engines/cine/bg.cpp

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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 "common/endian.h"
#include "common/stream.h"
#include "cine/cine.h"
#include "cine/various.h"
#include "cine/bg.h"
namespace Cine {
uint16 bgVar0;
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byte *additionalBgTable[9];
byte currentAdditionalBgIdx = 0, currentAdditionalBgIdx2 = 0;
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byte loadCt(const char *ctName) {
uint16 header[32];
byte *ptr, *dataPtr;
if (currentCtName != ctName)
strcpy(currentCtName, ctName);
ptr = dataPtr = readBundleFile(findFileInBundle(ctName));
if (g_cine->getGameType() == Cine::GType_OS) {
uint16 bpp = READ_BE_UINT16(ptr); ptr += 2;
if (bpp == 8) {
ctColorMode = 1;
memcpy(newPalette, ptr, 256 * 3);
ptr += 3 * 256;
memcpy(page3Raw, ptr, 320 * 200);
} else {
ctColorMode = 0;
for (int i = 0; i < 16; i++) {
tempPalette[i] = READ_BE_UINT16(ptr);
ptr += 2;
}
gfxResetRawPage(page3Raw);
gfxConvertSpriteToRaw(page3Raw, ptr, 160, 200);
}
} else {
loadRelatedPalette(ctName);
assert(strstr(ctName, ".NEO"));
Common::MemoryReadStream readS(ptr, 32);
for (int i = 0; i < 16; i++) {
header[i] = readS.readUint16BE();
}
gfxConvertSpriteToRaw(page3Raw, ptr + 0x80, 160, 200);
}
free(dataPtr);
return 0;
}
void loadBgHigh(const char *currentPtr) {
memcpy(newPalette, currentPtr, 256 * 3);
currentPtr += 256 * 3;
memcpy(page2Raw, currentPtr, 320 * 200);
newColorMode = 2;
bgColorMode = 1;
}
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byte loadBg(const char *bgName) {
byte *ptr, *dataPtr;
if (currentBgName[0] != bgName)
strcpy(currentBgName[0], bgName);
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byte fileIdx = findFileInBundle(bgName);
ptr = dataPtr = readBundleFile(fileIdx);
uint16 bpp = READ_BE_UINT16(ptr); ptr += 2;
if (bpp == 8) {
loadBgHigh((const char *)ptr);
} else {
newColorMode = 1;
bgColorMode = 0;
for (int i = 0; i < 16; i++) {
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tempPalette[i] = READ_BE_UINT16(ptr);
ptr += 2;
}
if (g_cine->getGameType() == Cine::GType_FW) {
loadRelatedPalette(bgName);
}
gfxResetRawPage(page2Raw);
gfxConvertSpriteToRaw(page2Raw, ptr, 160, 200);
}
free(dataPtr);
return 0;
}
void addBackground(const char *bgName, uint16 bgIdx) {
byte *ptr, *dataPtr;
strcpy(currentBgName[bgIdx], bgName);
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byte fileIdx = findFileInBundle(bgName);
ptr = dataPtr = readBundleFile(fileIdx);
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additionalBgTable[bgIdx] = (byte *) malloc(320 * 200);
uint16 bpp = READ_BE_UINT16(ptr); ptr += 2;
if (bpp == 8) {
bgColorMode = 1;
memcpy(newPalette, ptr, 256 * 3);
ptr += 3 * 256;
memcpy(additionalBgTable[bgIdx], ptr, 320 * 200);
} else {
bgColorMode = 0;
for (int i = 0; i < 16; i++) {
tempPalette[i] = READ_BE_UINT16(ptr);
ptr += 2;
}
gfxConvertSpriteToRaw(additionalBgTable[bgIdx], ptr, 160, 200);
}
free(dataPtr);
}
} // End of namespace Cine