/
screen_eob.cpp
1651 lines (1385 loc) · 41.4 KB
/
screen_eob.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.
*
*/
#if !defined(ENABLE_EOB)
#include "kyra/screen.h"
#endif
#ifdef ENABLE_EOB
#include "kyra/eobcommon.h"
#include "kyra/resource.h"
#include "common/system.h"
#include "graphics/cursorman.h"
#include "graphics/palette.h"
namespace Kyra {
Screen_EoB::Screen_EoB(EoBCoreEngine *vm, OSystem *system) : Screen(vm, system, _screenDimTable, _screenDimTableCount) {
_shapeFadeMode[0] = _shapeFadeMode[1] = 0;
_shapeFadeInternal = 0;
_fadeData = 0;
_fadeDataIndex = 0;
_dsX1 = _dsX2 = _dsY1 = _dsY2 = 0;
_gfxX = _gfxY = 0;
_gfxCol = 0;
_dsTempPage = 0;
_dsDiv = 0;
_dsRem = 0;
_dsScaleTrans = 0;
_cgaScaleTable = 0;
_gfxMaxY = 0;
_egaDitheringTable = 0;
_egaDitheringTempPage = 0;
_cgaMappingDefault = 0;
_cgaDitheringTables[0] = _cgaDitheringTables[1] = 0;
_useHiResEGADithering = false;
}
Screen_EoB::~Screen_EoB() {
delete[] _fadeData;
delete[] _dsTempPage;
delete[] _cgaScaleTable;
delete[] _egaDitheringTable;
delete[] _egaDitheringTempPage;
delete[] _cgaDitheringTables[0];
delete[] _cgaDitheringTables[1];
}
bool Screen_EoB::init() {
if (Screen::init()) {
int temp;
_gfxMaxY = _vm->staticres()->loadRawData(kEoBBaseExpObjectY, temp);
if (_renderMode != Common::kRenderCGA && _renderMode != Common::kRenderEGA)
_fadeData = _vm->resource()->fileData("FADING.DAT", 0);
if (!_fadeData) {
_fadeData = new uint8[0x700];
memset(_fadeData, 0, 0x700);
if (_renderMode != Common::kRenderCGA && _renderMode != Common::kRenderEGA) {
uint8 *pal = _vm->resource()->fileData("PALETTE1.PAL", 0);
for (int i = 0; i < 7; i++)
createFadeTable(pal, &_fadeData[i << 8], 18, (i + 1) * 36);
delete[] pal;
}
}
_dsTempPage = new uint8[12000];
if (_vm->gameFlags().useHiRes && _renderMode == Common::kRenderEGA) {
_useHiResEGADithering = true;
_egaDitheringTable = new uint8[256];
_egaDitheringTempPage = new uint8[SCREEN_W * 2 * SCREEN_H * 2];
for (int i = 0; i < 256; i++)
_egaDitheringTable[i] = i & 0x0F;
} else if (_renderMode == Common::kRenderCGA) {
_cgaMappingDefault = _vm->staticres()->loadRawData(kEoB1CgaMappingDefault, temp);
_cgaDitheringTables[0] = new uint16[256];
memset(_cgaDitheringTables[0], 0, 256 * sizeof(uint16));
_cgaDitheringTables[1] = new uint16[256];
memset(_cgaDitheringTables[1], 0, 256 * sizeof(uint16));
_cgaScaleTable = new uint8[256];
memset(_cgaScaleTable, 0, 256 * sizeof(uint8));
for (int i = 0; i < 256; i++)
_cgaScaleTable[i] = ((i & 0xF0) >> 2) | (i & 0x03);
}
return true;
}
return false;
}
void Screen_EoB::setClearScreenDim(int dim) {
setScreenDim(dim);
clearCurDim();
}
void Screen_EoB::clearCurDim() {
fillRect(_curDim->sx << 3, _curDim->sy, ((_curDim->sx + _curDim->w) << 3) - 1, (_curDim->sy + _curDim->h) - 1, _curDim->unkA);
}
void Screen_EoB::setMouseCursor(int x, int y, const byte *shape) {
setMouseCursor(x, y, shape, 0);
}
void Screen_EoB::setMouseCursor(int x, int y, const byte *shape, const uint8 *ovl) {
if (!shape)
return;
int mouseW = (shape[2] << 3);
int mouseH = (shape[3]);
int colorKey = (_renderMode == Common::kRenderCGA) ? 0 : _cursorColorKey;
int scaleFactor = _useHiResEGADithering ? 2 : 1;
uint8 *cursor = new uint8[mouseW * scaleFactor * mouseH * scaleFactor];
// We use memset and copyBlockToPage instead of fillRect to make sure that the
// color key 0xFF doesn't get converted into EGA color
memset(cursor, colorKey, mouseW * scaleFactor * mouseH * scaleFactor);
copyBlockToPage(6, 0, 0, mouseW * scaleFactor, mouseH * scaleFactor, cursor);
drawShape(6, shape, 0, 0, 0, 2, ovl);
CursorMan.showMouse(false);
if (_useHiResEGADithering)
ditherRect(getCPagePtr(6), cursor, mouseW * scaleFactor, mouseW, mouseH, colorKey);
else
copyRegionToBuffer(6, 0, 0, mouseW, mouseH, cursor);
// Mouse cursor post processing for CGA mode. Unlike the original (which uses drawShape for the mouse cursor)
// the cursor manager cannot know whether a pixel value of 0 is supposed to be black or transparent. Thus, we
// go over the transparency mask again and turn the black pixels to color 4.
if (_renderMode == Common::kRenderCGA) {
const uint8 *maskTbl = shape + 4 + ((mouseW * mouseH) >> 2);
uint8 *dst = cursor;
uint8 trans = 0;
uint8 shift = 6;
uint16 mH = mouseH;
while (mH--) {
uint16 mW = mouseW;
while (mW--) {
if (shift == 6)
trans = *maskTbl++;
if (!*dst && !((trans >> shift) & 3))
*dst = 4;
dst++;
shift = (shift - 2) & 7;
}
}
}
CursorMan.replaceCursor(cursor, mouseW * scaleFactor, mouseH * scaleFactor, x, y, colorKey);
if (isMouseVisible())
CursorMan.showMouse(true);
delete[] cursor;
// makes sure that the cursor is drawn
// we do not use Screen::updateScreen here
// so we can be sure that changes to page 0
// are NOT updated on the real screen here
_system->updateScreen();
}
void Screen_EoB::loadFileDataToPage(Common::SeekableReadStream *s, int pageNum, uint32 size) {
s->read(_pagePtrs[pageNum], size);
}
void Screen_EoB::printShadedText(const char *string, int x, int y, int col1, int col2) {
printText(string, x - 1, y, 12, col2);
printText(string, x, y + 1, 12, 0);
printText(string, x - 1, y + 1, 12, 0);
printText(string, x, y, col1, 0);
}
void Screen_EoB::loadShapeSetBitmap(const char *file, int tempPage, int destPage) {
loadEoBBitmap(file, _cgaMappingDefault, tempPage, destPage, -1);
_curPage = 2;
}
void Screen_EoB::loadEoBBitmap(const char *file, const uint8 *cgaMapping, int tempPage, int destPage, int convertToPage) {
const char *filePattern = (_vm->game() == GI_EOB1 && (_renderMode == Common::kRenderEGA || _renderMode == Common::kRenderCGA)) ? "%s.EGA" : "%s.CPS";
Common::String tmp = Common::String::format(filePattern, file);
Common::SeekableReadStream *s = _vm->resource()->createReadStream(tmp);
bool loadAlternative = false;
if (s) {
// This additional check is necessary since some localized versions of EOB II seem to contain invalid (size zero) cps files
if (s->size())
loadBitmap(tmp.c_str(), tempPage, destPage, 0);
else
loadAlternative = true;
delete s;
} else {
loadAlternative = true;
}
if (loadAlternative) {
if (_vm->game() == GI_EOB1) {
tmp.insertChar('1', tmp.size() - 4);
loadBitmap(tmp.c_str(), tempPage, destPage, 0);
} else {
tmp.setChar('X', 0);
s = _vm->resource()->createReadStream(tmp);
if (!s)
error("Screen_EoB::loadEoBBitmap(): Failed to load file '%s'", file);
s->seek(768);
loadFileDataToPage(s, destPage, 64000);
delete s;
}
}
if (convertToPage == -1) {
return;
} else if (convertToPage == 2 && _renderMode == Common::kRenderCGA) {
convertPage(destPage, 4, cgaMapping);
copyRegion(0, 0, 0, 0, 320, 200, 4, 2, Screen::CR_NO_P_CHECK);
} else if (convertToPage == 0) {
convertPage(destPage, 2, cgaMapping);
copyRegion(0, 0, 0, 0, 320, 200, 2, 0, Screen::CR_NO_P_CHECK);
} else {
convertPage(destPage, convertToPage, cgaMapping);
}
}
void Screen_EoB::convertPage(int srcPage, int dstPage, const uint8 *cgaMapping) {
uint8 *src = getPagePtr(srcPage);
uint8 *dst = getPagePtr(dstPage);
if (src == dst)
return;
if (_renderMode == Common::kRenderCGA) {
if (cgaMapping)
generateCGADitheringTables(cgaMapping);
uint16 *d = (uint16 *)dst;
uint8 tblSwitch = 0;
for (int height = SCREEN_H; height; height--) {
const uint16 *table = _cgaDitheringTables[(tblSwitch++) & 1];
for (int width = SCREEN_W / 2; width; width--) {
WRITE_LE_UINT16(d++, table[((src[1] & 0x0F) << 4) | (src[0] & 0x0F)]);
src += 2;
}
}
} else if (_renderMode == Common::kRenderEGA && !_useHiResEGADithering) {
uint32 len = SCREEN_W * SCREEN_H;
while (len--)
*dst++ = *src++ & 0x0F;
} else {
copyPage(srcPage, dstPage);
}
if (dstPage == 0 || dstPage == 1)
_forceFullUpdate = true;
}
void Screen_EoB::setScreenPalette(const Palette &pal) {
if (_useHiResEGADithering && pal.getNumColors() != 16) {
generateEGADitheringTable(pal);
} else if (_renderMode == Common::kRenderEGA && pal.getNumColors() == 16) {
_screenPalette->copy(pal);
_system->getPaletteManager()->setPalette(_screenPalette->getData(), 0, _screenPalette->getNumColors());
} else if (_renderMode != Common::kRenderCGA && _renderMode != Common::kRenderEGA) {
Screen::setScreenPalette(pal);
}
}
void Screen_EoB::getRealPalette(int num, uint8 *dst) {
if (_renderMode == Common::kRenderCGA || _renderMode == Common::kRenderEGA) {
const uint8 *pal = _screenPalette->getData();
for (int i = 0; i < 16; ++i) {
dst[0] = (pal[0] << 2) | (pal[0] & 3);
dst[1] = (pal[1] << 2) | (pal[1] & 3);
dst[2] = (pal[2] << 2) | (pal[2] & 3);
dst += 3;
pal += 3;
}
} else {
Screen::getRealPalette(num, dst);
}
}
uint8 *Screen_EoB::encodeShape(uint16 x, uint16 y, uint16 w, uint16 h, bool encode8bit, const uint8 *cgaMapping) {
uint8 *shp = 0;
uint16 shapesize = 0;
uint8 *srcLineStart = getPagePtr(_curPage | 1) + y * 320 + (x << 3);
uint8 *src = srcLineStart;
if (_renderMode == Common::kRenderEGA && !_useHiResEGADithering)
encode8bit = false;
if (_renderMode == Common::kRenderCGA) {
if (cgaMapping)
generateCGADitheringTables(cgaMapping);
shapesize = h * (w << 2) + 4;
shp = new uint8[shapesize];
memset(shp, 0, shapesize);
uint8 *dst = shp;
*dst++ = 4;
*dst++ = (h & 0xFF);
*dst++ = (w & 0xFF);
*dst++ = (h & 0xFF);
uint8 *dst2 = dst + (h * (w << 1));
uint8 tblSwitch = 0;
uint16 h1 = h;
while (h1--) {
uint16 w1 = w << 1;
const uint16 *table = _cgaDitheringTables[(tblSwitch++) & 1];
while (w1--) {
uint16 p0 = table[((src[1] & 0x0F) << 4) | (src[0] & 0x0F)];
uint16 p1 = table[((src[3] & 0x0F) << 4) | (src[2] & 0x0F)];
*dst++ = ((p0 & 0x0003) << 6) | ((p0 & 0x0300) >> 4) | ((p1 & 0x0003) << 2) | ((p1 & 0x0300) >> 8);
uint8 msk = 0;
for (int i = 0; i < 4; i++) {
if (!src[3 - i])
msk |= (3 << (i << 1));
}
*dst2++ = msk;
src += 4;
}
srcLineStart += SCREEN_W;
src = srcLineStart;
}
} else if (encode8bit) {
uint16 h1 = h;
while (h1--) {
uint8 *lineEnd = src + (w << 3);
do {
if (!*src++) {
shapesize++;
uint8 *startZeroPos = src;
while (src != lineEnd && *src == 0)
src++;
uint16 numZero = src - startZeroPos + 1;
if (numZero >> 8)
shapesize += 2;
}
shapesize++;
} while (src != lineEnd);
srcLineStart += SCREEN_W;
src = srcLineStart;
}
shapesize += 4;
shp = new uint8[shapesize];
memset(shp, 0, shapesize);
uint8 *dst = shp;
*dst++ = 8;
*dst++ = (h & 0xFF);
*dst++ = (w & 0xFF);
*dst++ = (h & 0xFF);
srcLineStart = getPagePtr(_curPage | 1) + y * 320 + (x << 3);
src = srcLineStart;
h1 = h;
while (h1--) {
uint8 *lineEnd = src + (w << 3);
do {
uint8 val = *src++;
if (!val) {
*dst++ = 0;
uint8 *startZeroPos = src;
while (src != lineEnd && *src == 0)
src++;
uint16 numZero = src - startZeroPos + 1;
if (numZero >> 8) {
*dst++ = 255;
*dst++ = 0;
numZero -= 255;
}
val = numZero & 0xFF;
}
*dst++ = val;
} while (src != lineEnd);
srcLineStart += SCREEN_W;
src = srcLineStart;
}
} else {
uint8 nib = 0, col = 0;
uint8 *colorMap = 0;
if (_renderMode != Common::kRenderEGA || _useHiResEGADithering) {
colorMap = new uint8[0x100];
memset(colorMap, 0xFF, 0x100);
}
shapesize = h * (w << 2) + 20;
shp = new uint8[shapesize];
memset(shp, 0, shapesize);
uint8 *dst = shp;
*dst++ = 2;
*dst++ = (h & 0xFF);
*dst++ = (w & 0xFF);
*dst++ = (h & 0xFF);
if (_renderMode != Common::kRenderEGA || _useHiResEGADithering) {
memset(dst, 0xFF, 0x10);
} else {
for (int i = 0; i < 16; i++)
dst[i] = i;
}
uint8 *pal = dst;
dst += 16;
nib = col = 0;
uint16 h1 = h;
while (h1--) {
uint16 w1 = w << 3;
while (w1--) {
uint8 s = *src++;
uint8 c = s & 0x0F;
if (colorMap) {
c = colorMap[s];
if (c == 0xFF) {
if (col < 0x10) {
*pal++ = s;
c = colorMap[s] = col++;
} else {
c = 0;
}
}
}
if (++nib & 1)
*dst = c << 4;
else
*dst++ |= c;
}
srcLineStart += SCREEN_W;
src = srcLineStart;
}
delete[] colorMap;
}
return shp;
}
void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y, int sd, int flags, ...) {
uint8 *dst = getPagePtr(pageNum);
const uint8 *src = shapeData;
if (!src)
return;
va_list args;
va_start(args, flags);
uint8 *ovl = (flags & 2) ? va_arg(args, uint8 *) : 0;
va_end(args);
if (sd != -1) {
const ScreenDim *dm = getScreenDim(sd);
setShapeFrame(dm->sx, dm->sy, dm->sx + dm->w, dm->sy + dm->h);
x += (_dsX1 << 3);
y += _dsY1;
}
dst += (_dsX1 << 3);
int16 dX = x - (_dsX1 << 3);
int16 dY = y;
int16 dW = _dsX2 - _dsX1;
uint8 pixelsPerByte = *src++;
uint16 dH = *src++;
uint16 width = (*src++) << 3;
uint16 transOffset = (pixelsPerByte == 4) ? (dH * width) >> 2 : 0;
src++;
int rX = x;
int rY = y;
int rW = width + 8;
int rH = dH;
uint16 w2 = width;
int d = dY - _dsY1;
int pixelStep = (flags & 1) ? -1 : 1;
if (pixelsPerByte == 8) {
uint16 marginLeft = 0;
uint16 marginRight = 0;
if (d < 0) {
dH += d;
if (dH <= 0)
return;
d = -d;
for (int i = 0; i < d; i++) {
marginLeft = width;
for (int ii = 0; ii < marginLeft; ii++) {
if (!*src++)
marginLeft = marginLeft + 1 - *src++;
}
}
dY = _dsY1;
}
d = _dsY2 - dY;
if (d < 1)
return;
if (d < dH)
dH = d;
marginLeft = 0;
if (dX < 0) {
width += dX;
marginLeft = -dX;
if (marginLeft >= w2)
return;
dX = 0;
}
marginRight = 0;
d = (dW << 3) - dX;
if (d < 1)
return;
if (d < width) {
width = d;
marginRight = w2 - marginLeft - width;
}
dst += (dY * SCREEN_W + dX);
uint8 *dstL = dst;
if (pageNum == 0 || pageNum == 1)
addDirtyRect(rX, rY, rW, rH);
while (dH--) {
int16 xpos = (int16) marginLeft;
if (flags & 1) {
for (int i = 0; i < w2; i++) {
if (*src++ == 0) {
i += (*src - 1);
src += (*src - 1);
}
}
src--;
}
const uint8 *src2 = src;
if (xpos) {
do {
uint8 val = (flags & 1) ? *(src - 1) : *src;
while (val && xpos) {
src += pixelStep;
xpos--;
val = (flags & 1) ? *(src - 1) : *src;
}
val = (flags & 1) ? *(src - 1) : *src;
if (!val) {
src += pixelStep;
uint8 bt = (flags & 1) ? src[1] : src[0];
src += pixelStep;
xpos = xpos - bt;
}
} while (xpos > 0);
}
dst -= xpos;
xpos += width;
while (xpos > 0) {
uint8 c = *src;
uint8 m = (flags & 1) ? *(src - 1) : c;
src += pixelStep;
if (m) {
drawShapeSetPixel(dst, c);
dst++;
xpos--;
} else {
uint8 len = (flags & 1) ? src[1] : src[0];
dst += len;
xpos -= len;
src += pixelStep;
}
}
xpos += marginRight;
if (xpos) {
do {
uint8 val = (flags & 1) ? *(src - 1) : *src;
while (val && xpos) {
src += pixelStep;
xpos--;
val = (flags & 1) ? *(src - 1) : *src;
}
val = (flags & 1) ? *(src - 1) : *src;
if (!val) {
src += pixelStep;
uint8 bt = (flags & 1) ? src[1] : src[0];
src += pixelStep;
xpos = xpos - bt;
}
} while (xpos > 0);
}
dstL += SCREEN_W;
dst = dstL;
if (flags & 1)
src = src2 + 1;
}
} else {
const uint8 *pal = 0;
uint8 cgaPal[4];
memset(cgaPal, 0, 4);
if (pixelsPerByte == 2) {
pal = ovl ? ovl : src;
src += 16;
} else {
static const uint8 cgaDefOvl[] = { 0x00, 0x55, 0xAA, 0xFF };
pal = ovl ? ovl : cgaDefOvl;
for (int i = 0; i < 4; i++)
cgaPal[i] = pal[i] & 3;
pal = cgaPal;
}
if (d < 0) {
d = -d;
if (d >= dH)
return;
src += (d * (width / pixelsPerByte));
d = dY + dH - _dsY1;
if (d >= 0) {
dH = d;
dY = _dsY1;
d = _dsY2 - dY;
}
} else {
d = _dsY2 - dY;
}
if (d < 1)
return;
if (d < dH)
dH = d;
bool trimL = false;
uint8 dXbitAlign = dX & (pixelsPerByte - 1);
if (dX < 0) {
width += dX;
d = -dX;
if (flags & 1)
src -= (d / pixelsPerByte);
else
src += (d / pixelsPerByte);
if (d >= w2)
return;
dX = 0;
trimL = true;
}
d = (dW << 3) - dX;
if (d < 1)
return;
if (d < width)
width = d;
dst += (dY * SCREEN_W + dX);
if (pageNum == 0 || pageNum == 1)
addDirtyRect(rX, rY, rW, rH);
int pitch = SCREEN_W - width;
int16 lineSrcStep = (w2 - width) / pixelsPerByte;
uint8 lineSrcStepRemainder = (w2 - width) % pixelsPerByte;
w2 /= pixelsPerByte;
if (flags & 1)
src += (w2 - 1);
uint8 pixelPacking = 8 / pixelsPerByte;
uint8 pixelPackingMask = 0;
for (int i = 0; i < pixelPacking; i++)
pixelPackingMask |= (1 << i);
if (trimL && (dXbitAlign > lineSrcStepRemainder))
lineSrcStep--;
uint8 bitShDef = 8 - pixelPacking;
if (flags & 1) {
lineSrcStep = (w2 << 1) - lineSrcStep;
bitShDef = 0;
}
uint8 bitShLineStart = bitShDef;
if (trimL)
bitShLineStart -= (dXbitAlign * pixelStep * pixelPacking);
while (dH--) {
int16 wd = width;
uint8 in = 0;
uint8 trans = 0;
uint8 shift = bitShLineStart;
uint8 shSwtch = bitShLineStart;
while (wd--) {
if (shift == shSwtch) {
in = *src;
trans = src[transOffset];
src += pixelStep;
shSwtch = bitShDef;
}
uint8 col = (pixelsPerByte == 2) ? pal[(in >> shift) & pixelPackingMask] : (*dst & ((trans >> shift) & (pixelPackingMask))) | pal[(in >> shift) & pixelPackingMask];
if (col || pixelsPerByte == 4)
drawShapeSetPixel(dst, col);
dst++;
shift = ((shift - (pixelStep * pixelPacking)) & 7);
}
src += lineSrcStep;
dst += pitch;
}
}
}
const uint8 *Screen_EoB::scaleShape(const uint8 *shapeData, int steps) {
setShapeFadeMode(1, steps ? true : false);
while (shapeData && steps--)
shapeData = scaleShapeStep(shapeData);
return shapeData;
}
const uint8 *Screen_EoB::scaleShapeStep(const uint8 *shp) {
uint8 *dst = (shp != _dsTempPage) ? _dsTempPage : _dsTempPage + 6000;
uint8 *d = dst;
uint8 pixelsPerByte = *d++ = *shp++;
assert(pixelsPerByte > 1);
uint16 h = shp[0] + 1;
d[0] = d[2] = (h << 1) / 3;
uint16 w = shp[1];
uint16 w2 = (w << 3) / pixelsPerByte;
uint16 t = ((w << 1) % 3) ? 1 : 0;
d[1] = ((w << 1) / 3) + t;
uint32 transOffsetSrc = (pixelsPerByte == 4) ? (shp[0] * shp[1]) << 1 : 0;
uint32 transOffsetDst = (pixelsPerByte == 4) ? (d[0] * d[1]) << 1 : 0;
shp += 3;
d += 3;
if (pixelsPerByte == 2) {
int i = 0;
while (i < 16) {
if (!shp[i]) {
i = -i;
break;
}
i++;
}
if (i >= 0)
i = 0;
else
i = -i;
_dsScaleTrans = (i << 4) | (i & 0x0F);
for (int ii = 0; ii < 16; ii++)
*d++ = *shp++;
}
_dsDiv = w2 / 3;
_dsRem = w2 % 3;
while (--h) {
if (pixelsPerByte == 2)
scaleShapeProcessLine4Bit(d, shp);
else
scaleShapeProcessLine2Bit(d, shp, transOffsetDst, transOffsetSrc);
if (!--h)
break;
if (pixelsPerByte == 2)
scaleShapeProcessLine4Bit(d, shp);
else
scaleShapeProcessLine2Bit(d, shp, transOffsetDst, transOffsetSrc);
if (!--h)
break;
shp += w2;
}
return (const uint8 *)dst;
}
const uint8 *Screen_EoB::generateShapeOverlay(const uint8 *shp, int paletteOverlayIndex) {
if (*shp != 2)
return 0;
shp += 4;
uint8 *ovl = getFadeTable(paletteOverlayIndex);
for (int i = 0; i < 16; i++)
_shapeOverlay[i] = ovl[shp[i]];
return _shapeOverlay;
}
void Screen_EoB::setShapeFrame(int x1, int y1, int x2, int y2) {
_dsX1 = x1;
_dsY1 = y1;
_dsX2 = x2;
_dsY2 = y2;
}
void Screen_EoB::setShapeFadeMode(uint8 i, bool b) {
if (!i || i == 1)
_shapeFadeMode[i] = b;
}
void Screen_EoB::setGfxParameters(int x, int y, int col) {
_gfxX = x;
_gfxY = y;
_gfxCol = col;
}
void Screen_EoB::drawExplosion(int scale, int radius, int numElements, int stepSize, int aspectRatio, const uint8 *colorTable, int colorTableSize) {
int ymin = 0;
int ymax = _gfxMaxY[scale];
int xmin = -100;
int xmax = 276;
if (scale)
--scale;
hideMouse();
const ScreenDim *dm = getScreenDim(5);
int rX1 = dm->sx << 3;
int rY1 = dm->sy;
int rX2 = rX1 + (dm->w << 3);
int rY2 = rY1 + dm->h - 1;
int16 gx2 = _gfxX;
int16 gy2 = _gfxY;
int16 *ptr2 = (int16 *)_dsTempPage;
int16 *ptr3 = (int16 *)&_dsTempPage[300];
int16 *ptr4 = (int16 *)&_dsTempPage[600];
int16 *ptr5 = (int16 *)&_dsTempPage[900];
int16 *ptr6 = (int16 *)&_dsTempPage[1200];
int16 *ptr7 = (int16 *)&_dsTempPage[1500];
int16 *ptr8 = (int16 *)&_dsTempPage[1800];
if (numElements > 150)
numElements = 150;
for (int i = 0; i < numElements; i++) {
ptr2[i] = ptr3[i] = 0;
ptr4[i] = _vm->_rnd.getRandomNumberRng(0, radius) - (radius >> 1);
ptr5[i] = _vm->_rnd.getRandomNumberRng(0, radius) - (radius >> 1) - (radius >> (8 - aspectRatio));
ptr7[i] = _vm->_rnd.getRandomNumberRng(1024 / stepSize, 2048 / stepSize);
ptr8[i] = scale << 8;
}
for (int l = 2; l;) {
if (l != 2) {
for (int i = numElements - 1; i >= 0; i--) {
int16 px = ((ptr2[i] >> 6) >> scale) + gx2;
int16 py = ((ptr3[i] >> 6) >> scale) + gy2;
if (py > ymax)
py = ymax;
if (posWithinRect(px, py, rX1, rY1, rX2, rY2))
setPagePixel(0, px, py, ptr6[i]);
}
}
l = 0;
for (int i = 0; i < numElements; i++) {
uint32 end = _system->getMillis() + 1;
if (ptr4[i] <= 0)
ptr4[i]++;
else
ptr4[i]--;
ptr2[i] += ptr4[i];
ptr5[i] += 5;
ptr3[i] += ptr5[i];
ptr8[i] += ptr7[i];
int16 px = ((ptr2[i] >> 6) >> scale) + gx2;
int16 py = ((ptr3[i] >> 6) >> scale) + gy2;
if (py >= ymax || py < ymin)
ptr5[i] = -(ptr5[i] >> 1);
if (px >= xmax || px < xmin)
ptr4[i] = -(ptr4[i] >> 1);
if (py > ymax)
py = ymax;
int pxVal1 = 0;
if (posWithinRect(px, py, 0, 0, 319, 199)) {
pxVal1 = getPagePixel(2, px, py);
ptr6[i] = getPagePixel(0, px, py);
}
assert((ptr8[i] >> 8) < colorTableSize);
int pxVal2 = colorTable[ptr8[i] >> 8];
if (pxVal2) {
l = 1;
if (pxVal1 == _gfxCol && posWithinRect(px, py, rX1, rY1, rX2, rY2)) {
setPagePixel(0, px, py, pxVal2);
if (i % 5 == 0) {
updateScreen();
uint32 cur = _system->getMillis();
if (end > cur)
_system->delayMillis(end - cur);
}
}
} else {
ptr7[i] = 0;
}
}
}
showMouse();
}
void Screen_EoB::drawVortex(int numElements, int radius, int stepSize, int, int disorder, const uint8 *colorTable, int colorTableSize) {
int16 *xCoords = (int16 *)_dsTempPage;
int16 *yCoords = (int16 *)&_dsTempPage[300];
int16 *xMod = (int16 *)&_dsTempPage[600];
int16 *yMod = (int16 *)&_dsTempPage[900];
int16 *pixBackup = (int16 *)&_dsTempPage[1200];
int16 *colTableStep = (int16 *)&_dsTempPage[1500];
int16 *colTableIndex = (int16 *)&_dsTempPage[1800];
int16 *pixDelay = (int16 *)&_dsTempPage[2100];
hideMouse();
int cp = _curPage;
if (numElements > 150)
numElements = 150;
int cx = 88;
int cy = 48;
radius <<= 6;
for (int i = 0; i < numElements; i++) {
int16 v38 = _vm->_rnd.getRandomNumberRng(radius >> 2, radius);
int16 stepSum = 0;
int16 sqsum = 0;
while (sqsum < v38) {