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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.
*
* $URL$
* $Id$
*
*/
#ifdef ENABLE_LOL
#include "kyra/screen_lol.h"
#include "kyra/lol.h"
namespace Kyra {
Screen_LoL::Screen_LoL(LoLEngine *vm, OSystem *system) : Screen_v2(vm, system), _vm(vm) {
_customDimTable = new ScreenDim*[_screenDimTableCount];
memset(_customDimTable, 0, sizeof(ScreenDim*) * _screenDimTableCount);
_paletteOverlay1 = new uint8[0x100];
_paletteOverlay2 = new uint8[0x100];
_grayOverlay = new uint8[0x100];
memset(_paletteOverlay1, 0, 0x100);
memset(_paletteOverlay2, 0, 0x100);
memset(_grayOverlay, 0, 0x100);
for (int i = 0; i < 8; i++)
_levelOverlays[i] = new uint8[256];
_fadeFlag = 2;
_drawGuiFlag = 0;
_curDimIndex = 0;
_dimLineCount = 0;
}
Screen_LoL::~Screen_LoL() {
for (int i = 0; i < _screenDimTableCount; i++)
delete _customDimTable[i];
delete[] _customDimTable;
for (int i = 0; i < 8; i++)
delete[] _levelOverlays[i];
delete[] _paletteOverlay1;
delete[] _paletteOverlay2;
delete[] _grayOverlay;
}
void Screen_LoL::setScreenDim(int dim) {
debugC(9, kDebugLevelScreen, "Screen_LoL::setScreenDim(%d)", dim);
assert(dim < _screenDimTableCount);
_curDim = _customDimTable[dim] ? (const ScreenDim *)_customDimTable[dim] : &_screenDimTable[dim];
_curDimIndex = dim;
_dimLineCount = 0;
}
const ScreenDim *Screen_LoL::getScreenDim(int dim) {
debugC(9, kDebugLevelScreen, "Screen_LoL::getScreenDim(%d)", dim);
assert(dim < _screenDimTableCount);
return _customDimTable[dim] ? (const ScreenDim *)_customDimTable[dim] : &_screenDimTable[dim];
}
void Screen_LoL::modifyScreenDim(int dim, int x, int y, int w, int h) {
delete _customDimTable[dim];
_customDimTable[dim] = new ScreenDim;
memcpy(_customDimTable[dim], &_screenDimTable[dim], sizeof(ScreenDim));
_customDimTable[dim]->sx = x;
_customDimTable[dim]->sy = y;
_customDimTable[dim]->w = w;
_customDimTable[dim]->h = h;
setScreenDim(dim);
}
void Screen_LoL::clearDim(int dim) {
const ScreenDim *tmp = getScreenDim(dim);
fillRect(tmp->sx << 3, tmp->sy, ((tmp->sx + tmp->w) << 3) - 1, (tmp->sy + tmp->h) - 1, tmp->unkA);
}
void Screen_LoL::clearCurDim() {
fillRect(_curDim->sx << 3, _curDim->sy, ((_curDim->sx + _curDim->w) << 3) - 1, (_curDim->sy + _curDim->h) - 1, _curDim->unkA);
_dimLineCount = 0;
}
void Screen_LoL::fprintString(const char *format, int x, int y, uint8 col1, uint8 col2, uint16 flags, ...) {
debugC(9, kDebugLevelScreen, "Screen_LoL::fprintString('%s', %d, %d, %d, %d, %d, ...)", format, x, y, col1, col2, flags);
if (!format)
return;
char string[240];
va_list vaList;
va_start(vaList, flags);
vsnprintf(string, sizeof(string), format, vaList);
va_end(vaList);
if (flags & 1)
x -= getTextWidth(string) >> 1;
if (flags & 2)
x -= getTextWidth(string);
if (flags & 4) {
printText(string, x - 1, y, 1, col2);
printText(string, x, y + 1, 1, col2);
}
if (flags & 8) {
printText(string, x - 1, y, 227, col2);
printText(string, x, y + 1, 227, col2);
}
printText(string, x, y, col1, col2);
}
void Screen_LoL::fprintStringIntro(const char *format, int x, int y, uint8 c1, uint8 c2, uint8 c3, uint16 flags, ...) {
debugC(9, kDebugLevelScreen, "Screen_LoL::fprintStringIntro('%s', %d, %d, %d, %d, %d, %d, ...)", format, x, y, c1, c2, c3, flags);
char buffer[400];
va_list args;
va_start(args, flags);
vsnprintf(buffer, sizeof(buffer), format, args);
va_end(args);
if ((flags & 0x0F00) == 0x100)
x -= getTextWidth(buffer) >> 1;
if ((flags & 0x0F00) == 0x200)
x -= getTextWidth(buffer);
if ((flags & 0x00F0) == 0x20) {
printText(buffer, x-1, y, c3, c2);
printText(buffer, x, y+1, c3, c2);
}
printText(buffer, x, y, c1, c2);
}
void Screen_LoL::generateGrayOverlay(const uint8 *srcPal, uint8 *grayOverlay, int factor, int addR, int addG, int addB, int lastColor, bool skipSpecialColours) {
uint8 tmpPal[768];
for (int i = 0; i != lastColor; i++) {
int v = (((srcPal[3 * i] & 0x3f) * factor) / 0x40) + addR;
tmpPal[3 * i] = (v > 0x3f) ? 0x3f : v & 0xff;
v = (((srcPal[3 * i + 1] & 0x3f) * factor) / 0x40) + addG;
tmpPal[3 * i + 1] = (v > 0x3f) ? 0x3f : v & 0xff;
v = (((srcPal[3 * i + 2] & 0x3f) * factor) / 0x40) + addB;
tmpPal[3 * i + 2] = (v > 0x3f) ? 0x3f : v & 0xff;
}
for (int i = 0; i < lastColor; i++)
grayOverlay[i] = findLeastDifferentColor(tmpPal + 3 * i, srcPal, lastColor, skipSpecialColours);
}
uint8 *Screen_LoL::generateLevelOverlay(const uint8 *srcPal, uint8 *ovl, int opColor, int weight) {
if (!srcPal || !ovl)
return ovl;
if (weight > 255)
weight = 255;
uint16 r = srcPal[opColor * 3];
uint16 g = srcPal[opColor * 3 + 1];
uint16 b = srcPal[opColor * 3 + 2];
uint8 *d = ovl;
*d++ = 0;
for (int i = 1; i != 255; i++) {
uint16 a = srcPal[i * 3];
uint8 dr = a - ((((a - r) * (weight >> 1)) << 1) >> 8);
a = srcPal[i * 3 + 1];
uint8 dg = a - ((((a - g) * (weight >> 1)) << 1) >> 8);
a = srcPal[i * 3 + 2];
uint8 db = a - ((((a - b) * (weight >> 1)) << 1) >> 8);
int l = opColor;
int m = 0x7fff;
int ii = 127;
int x = 1;
const uint8 *s = srcPal + 3;
do {
if (i == x) {
s += 3;
} else {
int t = *s++ - dr;
int c = t * t;
t = *s++ - dg;
c += (t * t);
t = *s++ - db;
c += (t * t);
if (!c) {
l = x;
break;
}
if (c <= m) {
m = c;
l = x;
}
}
x++;
} while (--ii);
*d++ = l & 0xff;
}
return ovl;
}
void Screen_LoL::drawGridBox(int x, int y, int w, int h, int col) {
if (w <= 0 || x >= 320 || h <= 0 || y >= 200)
return;
if (x < 0) {
x += w;
if (x <= 0)
return;
w = x;
x = 0;
}
int tmp = x + w;
if (tmp >= 320) {
w = 320 - x;
}
int pitch = 320 - w;
if (y < 0) {
y += h;
if (y <= 0)
return;
h = y;
y = 0;
}
tmp = y + h;
if (tmp >= 200) {
h = 200 - y;
}
tmp = (y + x) & 1;
uint8 *p = getPagePtr(_curPage) + y * 320 + x;
uint8 s = (tmp >> 8) & 1;
w >>= 1;
int w2 = w;
while (h--) {
if (w) {
while (w--) {
*(p + tmp) = col;
p += 2;
}
} else {
w = 1;
}
if (s == 1) {
if (tmp == 0)
*p = col;
p++;
}
tmp ^= 1;
p += pitch;
w = w2;
}
}
void Screen_LoL::fadeClearSceneWindow(int delay) {
if (_fadeFlag == 1)
return;
uint8 *tpal = new uint8[768];
memcpy(tpal, _currentPalette, 768);
memset(tpal, 0, 384);
loadSpecialColours(tpal);
fadePalette(tpal, delay);
fillRect(112, 0, 288, 120, 0);
delete[] tpal;
_fadeFlag = 1;
}
void Screen_LoL::backupSceneWindow(int srcPageNum, int dstPageNum) {
uint8 *src = getPagePtr(srcPageNum) + 112;
uint8 *dst = getPagePtr(dstPageNum) + 0xa500;
for (int h = 0; h < 120; h++) {
for (int w = 0; w < 176; w++)
*dst++ = *src++;
src += 144;
}
}
void Screen_LoL::restoreSceneWindow(int srcPageNum, int dstPageNum) {
uint8 *src = getPagePtr(srcPageNum) + 0xa500;
uint8 *dst = getPagePtr(dstPageNum) + 112;
for (int h = 0; h < 120; h++) {
memcpy(dst, src, 176);
src += 176;
dst += 320;
}
if (!dstPageNum)
addDirtyRect(112, 0, 176, 120);
}
void Screen_LoL::smoothScrollZoomStepTop(int srcPageNum, int dstPageNum, int x, int y) {
uint8 *src = getPagePtr(srcPageNum) + 0xa500 + y * 176 + x;
uint8 *dst = getPagePtr(dstPageNum) + 0xa500;
x <<= 1;
uint16 width = 176 - x;
uint16 scaleX = (((x + 1) << 8) / width + 0x100);
uint16 cntW = scaleX >> 8;
scaleX <<= 8;
width--;
uint16 widthCnt = width;
uint16 height = 46 - y;
uint16 scaleY = (((y + 1) << 8) / height + 0x100);
scaleY <<= 8;
uint32 scaleYc = 0;
while (height) {
uint32 scaleXc = 0;
do {
scaleXc += scaleX;
int numbytes = cntW + (scaleXc >> 16);
scaleXc &= 0xffff;
memset(dst, *src++, numbytes);
dst += numbytes;
} while (--widthCnt);
*dst++ = *src++;
widthCnt = width;
src += x;
scaleYc += scaleY;
if (scaleYc >> 16) {
scaleYc = 0;
src -= 176;
continue;
}
height--;
}
}
void Screen_LoL::smoothScrollZoomStepBottom(int srcPageNum, int dstPageNum, int x, int y) {
uint8 *src = getPagePtr(srcPageNum) + 0xc4a0 + x;
uint8 *dst = getPagePtr(dstPageNum) + 0xc4a0;
x <<= 1;
uint16 width = 176 - x;
uint16 scaleX = (((x + 1) << 8) / width + 0x100);
uint16 cntW = scaleX >> 8;
scaleX <<= 8;
width--;
uint16 widthCnt = width;
uint16 height = 74 - y;
uint16 scaleY = (((y + 1) << 8) / height + 0x100);
scaleY <<= 8;
uint32 scaleYc = 0;
while (height) {
uint32 scaleXc = 0;
do {
scaleXc += scaleX;
int numbytes = cntW + (scaleXc >> 16);
scaleXc &= 0xffff;
memset(dst, *src++, numbytes);
dst += numbytes;
} while (--widthCnt);
*dst++ = *src++;
widthCnt = width;
src += x;
scaleYc += scaleY;
if (scaleYc >> 16) {
scaleYc = 0;
src -= 176;
continue;
}
height--;
}
}
void Screen_LoL::smoothScrollHorizontalStep(int pageNum, int srcX, int dstX, int w) {
uint8 *d = getPagePtr(pageNum);
uint8 *s = d + 112 + srcX;
int w2 = srcX + w - dstX;
int pitchS = 320 + w2 - (w << 1);
int pitchD = 320 - w;
int h = 120;
while (h--) {
for (int i = 0; i < w; i++)
*d++ = *s++;
d -= w;
s -= w2;
for (int i = 0; i < w; i++)
*s++ = *d++;
s += pitchS;
d += pitchD;
}
}
void Screen_LoL::smoothScrollTurnStep1(int srcPage1Num, int srcPage2Num, int dstPageNum) {
uint8 *s = getPagePtr(srcPage1Num) + 273;
uint8 *d = getPagePtr(dstPageNum) + 0xa500;
for (int i = 0; i < 120; i++) {
uint8 a = *s++;
*d++ = a;
*d++ = a;
for (int ii = 0; ii < 14; ii++) {
a = *s++;
*d++ = a;
*d++ = a;
*d++ = a;
}
s += 305;
d += 132;
}
s = getPagePtr(srcPage2Num) + 112;
d = getPagePtr(dstPageNum) + 0xa52c;
for (int i = 0; i < 120; i++) {
for (int ii = 0; ii < 33; ii++) {
*d++ = *s++;
*d++ = *s++;
uint8 a = *s++;
*d++ = a;
*d++ = a;
}
s += 221;
d += 44;
}
}
void Screen_LoL::smoothScrollTurnStep2(int srcPage1Num, int srcPage2Num, int dstPageNum) {
uint8 *s = getPagePtr(srcPage1Num) + 244;
uint8 *d = getPagePtr(dstPageNum) + 0xa500;
for (int k = 0; k < 2; k++) {
for (int i = 0; i < 120; i++) {
for (int ii = 0; ii < 44; ii++) {
uint8 a = *s++;
*d++ = a;
*d++ = a;
}
s += 276;
d += 88;
}
s = getPagePtr(srcPage2Num) + 112;
d = getPagePtr(dstPageNum) + 0xa558;
}
}
void Screen_LoL::smoothScrollTurnStep3(int srcPage1Num, int srcPage2Num, int dstPageNum) {
uint8 *s = getPagePtr(srcPage1Num) + 189;
uint8 *d = getPagePtr(dstPageNum) + 0xa500;
for (int i = 0; i < 120; i++) {
for (int ii = 0; ii < 33; ii++) {
*d++ = *s++;
*d++ = *s++;
uint8 a = *s++;
*d++ = a;
*d++ = a;
}
s += 221;
d += 44;
}
s = getPagePtr(srcPage2Num) + 112;
d = getPagePtr(dstPageNum) + 0xa584;
for (int i = 0; i < 120; i++) {
for (int ii = 0; ii < 14; ii++) {
uint8 a = *s++;
*d++ = a;
*d++ = a;
*d++ = a;
}
uint8 a = *s++;
*d++ = a;
*d++ = a;
s += 305;
d += 132;
}
}
void Screen_LoL::fadeToBlack(int delay, const UpdateFunctor *upFunc) {
Screen::fadeToBlack(delay, upFunc);
_fadeFlag = 2;
}
void Screen_LoL::setPaletteBrightness(uint8 *palette, int brightness, int modifier) {
generateBrightnessPalette(palette, getPalette(1), brightness, modifier);
fadePalette(getPalette(1), 5, 0);
_fadeFlag = 0;
}
void Screen_LoL::generateBrightnessPalette(uint8 *src, uint8 *dst, int brightness, int modifier) {
memcpy(dst, src, 0x300);
loadSpecialColours(dst);
brightness = (8 - brightness) << 5;
if (modifier >= 0 && modifier < 8 && _drawGuiFlag & 0x800) {
brightness = 256 - ((((modifier & 0xfffe) << 5) * (256 - brightness)) >> 8);
if (brightness < 0)
brightness = 0;
}
for (int i = 0; i < 384; i++) {
uint16 c = (dst[i] * brightness) >> 8;
dst[i] = c & 0xff;
}
}
void Screen_LoL::loadSpecialColours(uint8 *destPalette) {
memcpy(destPalette + 0x240, _screenPalette + 0x240, 12);
}
void Screen_LoL::copyColour(int dstColourIndex, int srcColourIndex) {
uint8 *s = _screenPalette + srcColourIndex * 3;
uint8 *d = _screenPalette + dstColourIndex * 3;
memcpy(d, s, 3);
uint8 ci[4];
ci[0] = (d[0] << 2) | (d[0] & 3);
ci[1] = (d[1] << 2) | (d[1] & 3);
ci[2] = (d[2] << 2) | (d[2] & 3);
ci[3] = 0;
_system->setPalette(ci, dstColourIndex, 1);
}
bool Screen_LoL::fadeColour(int dstColourIndex, int srcColourIndex, uint32 elapsedTime, uint32 targetTime) {
uint8 *dst = _screenPalette + 3 * dstColourIndex;
uint8 *src = _screenPalette + 3 * srcColourIndex;
uint8 *p = getPalette(1) + 3 * dstColourIndex;
bool res = false;
int16 t1 = 0;
int16 t2 = 0;
int32 t3 = 0;
uint8 tmpPalEntry[3];
for (int i = 0; i < 3; i++) {
if (elapsedTime < targetTime) {
t1 = *src & 0x3f;
t2 = *dst & 0x3f;
t3 = t1 - t2;
if (t3)
res = true;
t3 = (((t3 << 8) / (int)targetTime) * (int)elapsedTime) >> 8;
t3 = t2 + t3;
} else {
t1 = *dst & 0x3f;
*p = t3 = t1;
res = false;
}
tmpPalEntry[i] = t3 & 0xff;
src++;
dst++;
p++;
}
uint8 tpal[768];
memcpy(tpal, _screenPalette, 768);
memcpy(tpal + dstColourIndex * 3, tmpPalEntry, 3);
setScreenPalette(tpal);
updateScreen();
return res;
}
uint8 Screen_LoL::getShapePaletteSize(const uint8 *shp) {
debugC(9, kDebugLevelScreen, "Screen_LoL::getShapePaletteSize(%p)", (const void *)shp);
return shp[10];
}
} // end of namespace Kyra
#endif // ENABLE_LOL
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