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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 "cruise/cruise_main.h"
namespace Cruise {
uint8 colorMode = 0;
uint8 *backgroundPtrtable[8] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }; // wasn't initialized in original, but it's probably better
backgroundTableStruct backgroundTable[8];
char hwPage[64000];
char *hwMemAddr[] = {
hwPage,
};
short int cvtPalette[0x20];
int loadMEN(uint8 **ptr) {
char *localPtr = (char *)*ptr;
if (!strcmp(localPtr, "MEN")) {
localPtr += 4;
titleColor = *(localPtr++);
selectColor = *(localPtr++);
itemColor = *(localPtr++);
subColor = *(localPtr++);
*ptr = (uint8 *) localPtr;
return 1;
} else {
return 0;
}
}
int CVTLoaded;
int loadCVT(uint8 **ptr) {
char *localPtr = (char *)*ptr;
if (!strcmp(localPtr, "CVT")) {
int i;
localPtr += 4;
for (i = 0; i < 0x20; i++) {
cvtPalette[i] = *(localPtr++);
}
*ptr = (uint8 *) localPtr;
CVTLoaded = 1;
return 1;
} else {
CVTLoaded = 0;
return 0;
}
}
extern int lastFileSize;
int loadBackground(const char *name, int idx) {
uint8 *ptr;
uint8 *ptr2;
uint8 *ptrToFree;
printf("Loading BG: %s\n", name);
if (!backgroundPtrtable[idx]) {
backgroundPtrtable[idx] = (uint8 *)mallocAndZero(320 * 200);
}
if (!backgroundPtrtable[idx]) {
backgroundTable[idx].name[0] = 0;
return (-2);
}
ptrToFree = gfxModuleData.pPage10;
if (loadFileSub1(&ptrToFree, name, NULL) < 0) {
if (ptrToFree != gfxModuleData.pPage10)
free(ptrToFree);
return (-18);
}
if (lastFileSize == 32078 || lastFileSize == 32080 || lastFileSize == 32034) {
colorMode = 0;
} else {
colorMode = 1;
}
ptr = ptrToFree;
ptr2 = ptrToFree;
if (!strcmp(name, "LOGO.PI1")) {
oldSpeedGame = speedGame;
flagSpeed = 1;
speedGame = 1;
} else if (flagSpeed) {
speedGame = oldSpeedGame;
flagSpeed = 0;
}
if (!strcmp((char*)ptr, "PAL")) {
memcpy(palScreen[idx], ptr+4, 256*3);
gfxModuleData_setPal256(palScreen[idx]);
} else {
int mode = ptr2[1];
ptr2 += 2;
// read palette
switch(mode)
{
case 0:
case 4: // color on 3 bit
{
uint16 oldPalette[32];
memcpy(oldPalette, ptr2, 0x20);
ptr2 += 0x20;
flipGen(oldPalette, 0x20);
for(unsigned long int i=0; i<32; i++) {
gfxModuleData_convertOldPalColor(oldPalette[i], &palScreen[idx][i*3]);
}
// duplicate the palette
for(unsigned long int i=1; i<8; i++) {
memcpy(&palScreen[idx][32*i*3], &palScreen[idx][0], 32*3);
}
break;
}
case 5: // color on 4 bit
{
for(unsigned long int i=0; i<32; i++)
{
uint8* inPtr = ptr2 + i * 2;
uint8* outPtr = palScreen[idx] +i * 3;
outPtr[2] = ((inPtr[1])&0x0F) * 17;
outPtr[1] = (((inPtr[1])&0xF0) >> 4) * 17;
outPtr[0] = ((inPtr[0])&0x0F) * 17;
}
ptr2 += 2*32;
// duplicate the palette
for(unsigned long int i=1; i<8; i++) {
memcpy(&palScreen[idx][32*i*3], &palScreen[idx][0], 32*3);
}
break;
}
case 8:
memcpy(palScreen[idx], ptr2, 256*3);
ptr2 += 256*3;
break;
default:
ASSERT(0);
}
gfxModuleData_setPal256(palScreen[idx]);
// read image data
gfxModuleData_gfxClearFrameBuffer(backgroundPtrtable[idx]);
switch(mode)
{
case 0:
case 4:
convertGfxFromMode4(ptr2, 320, 200, backgroundPtrtable[idx]);
ptr2 += 32000;
break;
case 5:
convertGfxFromMode5(ptr2, 320, 200, backgroundPtrtable[idx]);
break;
case 8:
memcpy(backgroundPtrtable[idx], ptr2, 320 * 200);
ptr2 += 320*200;
break;
}
loadMEN(&ptr2);
loadCVT(&ptr2);
}
strcpy(backgroundTable[idx].name, name);
return (0);
}
} // End of namespace Cruise
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