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305a1525ed
scummvm/engines/kyra/screen.cpp
Johannes Schickel 305a1525ed - cleanup 
- some diffs for Amiga version

svn-id: r26010
2007-03-07 20:31:19 +00:00

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004-2006 The ScummVM project
*
* 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/stdafx.h"
#include "common/endian.h"
#include "common/system.h"
#include "graphics/cursorman.h"
#include "kyra/screen.h"
#include "kyra/kyra.h"
#include "kyra/resource.h"
namespace Kyra {
#define BITBLIT_RECTS 10
Screen::Screen(KyraEngine *vm, OSystem *system)
: _system(system), _vm(vm) {
}
Screen::~Screen() {
for (int i = 0; i < SCREEN_OVLS_NUM; ++i) {
delete [] _sjisOverlayPtrs[i];
}
for (int pageNum = 0; pageNum < SCREEN_PAGE_NUM; pageNum += 2) {
delete [] _pagePtrs[pageNum];
_pagePtrs[pageNum] = _pagePtrs[pageNum + 1] = 0;
}
for (int f = 0; f < ARRAYSIZE(_fonts); ++f) {
delete[] _fonts[f].fontData;
_fonts[f].fontData = NULL;
}
delete [] _sjisFontData;
delete [] _sjisTempPage;
delete [] _currentPalette;
delete [] _screenPalette;
delete [] _decodeShapeBuffer;
delete [] _animBlockPtr;
for (int i = 0; i < ARRAYSIZE(_palettes); ++i) {
delete [] _palettes[i];
}
delete [] _bitBlitRects;
for (int i = 0; i < ARRAYSIZE(_saveLoadPage); ++i) {
delete [] _saveLoadPage[i];
_saveLoadPage[i] = 0;
}
delete [] _unkPtr1;
delete [] _unkPtr2;
delete [] _dirtyRects;
}
bool Screen::init() {
debugC(9, kDebugLevelScreen, "Screen::init()");
_disableScreen = false;
_system->setFeatureState(OSystem::kFeatureAutoComputeDirtyRects, false);
memset(_sjisOverlayPtrs, 0, sizeof(_sjisOverlayPtrs));
_useOverlays = false;
_useSJIS = false;
_sjisTempPage = _sjisFontData = 0;
if (_vm->gameFlags().useHiResOverlay) {
_system->beginGFXTransaction();
_vm->initCommonGFX(true);
_system->initSize(640, 400);
_system->endGFXTransaction();
for (int i = 0; i < SCREEN_OVLS_NUM; ++i) {
_sjisOverlayPtrs[i] = new uint8[SCREEN_OVL_SJIS_SIZE];
assert(_sjisOverlayPtrs[i]);
memset(_sjisOverlayPtrs[i], 0x80, SCREEN_OVL_SJIS_SIZE);
}
_useOverlays = true;
_useSJIS = (_vm->gameFlags().lang == Common::JA_JPN);
if (_useSJIS) {
_sjisFontData = _vm->resource()->fileData("FMT_FNT.ROM", 0);
if (!_sjisFontData)
error("missing font rom ('FMT_FNT.ROM') required for this version");
_sjisTempPage = new uint8[420];
assert(_sjisTempPage);
_sjisTempPage2 = _sjisTempPage + 60;
_sjisSourceChar = _sjisTempPage + 384;
}
} else {
_system->beginGFXTransaction();
_vm->initCommonGFX(false);
//for debug reasons (see Screen::updateScreen)
//_system->initSize(640, 200);
_system->initSize(320, 200);
_system->endGFXTransaction();
}
_curPage = 0;
for (int pageNum = 0; pageNum < SCREEN_PAGE_NUM; pageNum += 2) {
uint8 *pagePtr = new uint8[SCREEN_PAGE_SIZE];
assert(pagePtr);
memset(pagePtr, 0, SCREEN_PAGE_SIZE);
_pagePtrs[pageNum] = _pagePtrs[pageNum + 1] = pagePtr;
}
memset(_shapePages, 0, sizeof(_shapePages));
_currentPalette = new uint8[768];
assert(_currentPalette);
memset(_currentPalette, 0, 768);
_screenPalette = new uint8[768];
assert(_screenPalette);
memset(_screenPalette, 0, 768);
for (int i = 0; i < ARRAYSIZE(_palettes); ++i) {
_palettes[i] = new uint8[768];
assert(_palettes[i]);
memset(_palettes[i], 0, 768);
}
setScreenPalette(_currentPalette);
_curDim = &_screenDimTable[0];
_charWidth = 0;
_charOffset = 0;
memset(_fonts, 0, sizeof(_fonts));
for (int i = 0; i < ARRAYSIZE(_textColorsMap); ++i) {
_textColorsMap[i] = i;
}
_decodeShapeBuffer = NULL;
_decodeShapeBufferSize = 0;
_animBlockPtr = NULL;
_animBlockSize = 0;
_mouseLockCount = 1;
CursorMan.showMouse(false);
_bitBlitRects = new Rect[BITBLIT_RECTS];
assert(_bitBlitRects);
memset(_bitBlitRects, 0, sizeof(Rect)*BITBLIT_RECTS);
_bitBlitNum = 0;
memset(_saveLoadPage, 0, sizeof(_saveLoadPage));
_unkPtr1 = new uint8[getRectSize(1, 144)];
assert(_unkPtr1);
memset(_unkPtr1, 0, getRectSize(1, 144));
_unkPtr2 = new uint8[getRectSize(1, 144)];
assert(_unkPtr2);
memset(_unkPtr2, 0, getRectSize(1, 144));
_forceFullUpdate = false;
_numDirtyRects = 0;
_dirtyRects = new Rect[kMaxDirtyRects];
assert(_dirtyRects);
return true;
}
void Screen::updateScreen() {
debugC(9, kDebugLevelScreen, "Screen::updateScreen()");
if (_disableScreen)
return;
if (_useOverlays)
updateDirtyRectsOvl();
else
updateDirtyRects();
//for debug reasons (needs 640x200 screen)
//_system->copyRectToScreen(getPagePtr(2), SCREEN_W, 320, 0, SCREEN_W, SCREEN_H);
_system->updateScreen();
}
void Screen::updateDirtyRects() {
if (_forceFullUpdate) {
_system->copyRectToScreen(getCPagePtr(0), SCREEN_W, 0, 0, SCREEN_W, SCREEN_H);
} else {
const byte *page0 = getCPagePtr(0);
for (int i = 0; i < _numDirtyRects; ++i) {
Rect &cur = _dirtyRects[i];
_system->copyRectToScreen(page0 + cur.y * SCREEN_W + cur.x, SCREEN_W, cur.x, cur.y, cur.x2, cur.y2);
}
}
_forceFullUpdate = false;
_numDirtyRects = 0;
}
void Screen::updateDirtyRectsOvl() {
if (_forceFullUpdate) {
const byte *src = getCPagePtr(0);
byte *dst = _sjisOverlayPtrs[0];
scale2x(dst, 640, src, SCREEN_W, SCREEN_W, SCREEN_H);
mergeOverlay(0, 0, 640, 400);
_system->copyRectToScreen(dst, 640, 0, 0, 640, 400);
} else {
const byte *page0 = getCPagePtr(0);
byte *ovl0 = _sjisOverlayPtrs[0];
for (int i = 0; i < _numDirtyRects; ++i) {
Rect &cur = _dirtyRects[i];
byte *dst = ovl0 + cur.y * 1280 + (cur.x<<1);
const byte *src = page0 + cur.y * SCREEN_W + cur.x;
scale2x(dst, 640, src, SCREEN_W, cur.x2, cur.y2);
mergeOverlay(cur.x<<1, cur.y<<1, cur.x2<<1, cur.y2<<1);
_system->copyRectToScreen(dst, 640, cur.x<<1, cur.y<<1, cur.x2<<1, cur.y2<<1);
}
}
_forceFullUpdate = false;
_numDirtyRects = 0;
}
void Screen::scale2x(byte *dst, int dstPitch, const byte *src, int srcPitch, int w, int h) {
byte *dstL1 = dst;
byte *dstL2 = dst + dstPitch;
int dstAdd = dstPitch * 2 - w * 2;
int srcAdd = srcPitch - w;
while (h--) {
for (int x = 0; x < w; ++x, dstL1 += 2, dstL2 += 2) {
uint16 col = *src++;
col |= col << 8;
*(uint16*)(dstL1) = col;
*(uint16*)(dstL2) = col;
}
dstL1 += dstAdd; dstL2 += dstAdd;
src += srcAdd;
}
}
void Screen::mergeOverlay(int x, int y, int w, int h) {
byte *dst = _sjisOverlayPtrs[0] + y * 640 + x;
const byte *src = _sjisOverlayPtrs[1] + y * 640 + x;
int add = 640 - w;
while (h--) {
for (x = 0; x < w; ++x, ++dst) {
byte col = *src++;
if (col != 0x80)
*dst = col;
}
dst += add;
src += add;
}
}
uint8 *Screen::getPagePtr(int pageNum) {
debugC(9, kDebugLevelScreen, "Screen::getPagePtr(%d)", pageNum);
assert(pageNum < SCREEN_PAGE_NUM);
return _pagePtrs[pageNum];
}
const uint8 *Screen::getCPagePtr(int pageNum) const {
debugC(9, kDebugLevelScreen, "Screen::getCPagePtr(%d)", pageNum);
assert(pageNum < SCREEN_PAGE_NUM);
return _pagePtrs[pageNum];
}
uint8 *Screen::getPageRect(int pageNum, int x, int y, int w, int h) {
debugC(9, kDebugLevelScreen, "Screen::getPageRect(%d, %d, %d, %d, %d)", pageNum, x, y, w, h);
assert(pageNum < SCREEN_PAGE_NUM);
if (pageNum == 0 || pageNum == 1) addDirtyRect(x, y, w, h);
return _pagePtrs[pageNum] + y * SCREEN_W + x;
}
void Screen::clearPage(int pageNum) {
debugC(9, kDebugLevelScreen, "Screen::clearPage(%d)", pageNum);
assert(pageNum < SCREEN_PAGE_NUM);
if (pageNum == 0 || pageNum == 1) _forceFullUpdate = true;
memset(getPagePtr(pageNum), 0, SCREEN_PAGE_SIZE);
clearOverlayPage(pageNum);
}
int Screen::setCurPage(int pageNum) {
debugC(9, kDebugLevelScreen, "Screen::setCurPage(%d)", pageNum);
assert(pageNum < SCREEN_PAGE_NUM);
int previousPage = _curPage;
_curPage = pageNum;
return previousPage;
}
void Screen::clearCurPage() {
debugC(9, kDebugLevelScreen, "Screen::clearCurPage()");
if (_curPage == 0 || _curPage == 1) _forceFullUpdate = true;
memset(getPagePtr(_curPage), 0, SCREEN_PAGE_SIZE);
clearOverlayPage(_curPage);
}
uint8 Screen::getPagePixel(int pageNum, int x, int y) {
debugC(9, kDebugLevelScreen, "Screen::getPagePixel(%d, %d, %d)", pageNum, x, y);
assert(pageNum < SCREEN_PAGE_NUM);
assert(x >= 0 && x < SCREEN_W && y >= 0 && y < SCREEN_H);
return _pagePtrs[pageNum][y * SCREEN_W + x];
}
void Screen::setPagePixel(int pageNum, int x, int y, uint8 color) {
debugC(9, kDebugLevelScreen, "Screen::setPagePixel(%d, %d, %d, %d)", pageNum, x, y, color);
assert(pageNum < SCREEN_PAGE_NUM);
assert(x >= 0 && x < SCREEN_W && y >= 0 && y < SCREEN_H);
if (pageNum == 0 || pageNum == 1)
addDirtyRect(x, y, 1, 1);
_pagePtrs[pageNum][y * SCREEN_W + x] = color;
}
void Screen::fadeFromBlack(int delay) {
debugC(9, kDebugLevelScreen, "Screen::fadeFromBlack()");
fadePalette(_currentPalette, delay);
}
void Screen::fadeToBlack(int delay) {
debugC(9, kDebugLevelScreen, "Screen::fadeToBlack()");
uint8 blackPal[768];
memset(blackPal, 0, 768);
fadePalette(blackPal, delay);
}
void Screen::fadeSpecialPalette(int palIndex, int startIndex, int size, int fadeTime) {
debugC(9, kDebugLevelScreen, "fadeSpecialPalette(%d, %d, %d, %d)", palIndex, startIndex, size, fadeTime);
assert(_vm->palTable1()[palIndex]);
assert(_currentPalette);
uint8 tempPal[768];
memcpy(tempPal, _currentPalette, 768);
memcpy(&tempPal[startIndex*3], _vm->palTable1()[palIndex], size*3);
fadePalette(tempPal, fadeTime*18);
memcpy(&_currentPalette[startIndex*3], &tempPal[startIndex*3], size*3);
setScreenPalette(_currentPalette);
_system->updateScreen();
}
void Screen::fadePalette(const uint8 *palData, int delay) {
debugC(9, kDebugLevelScreen, "Screen::fadePalette(%p, %d)", (const void *)palData, delay);
updateDirtyRects();
uint8 fadePal[768];
memcpy(fadePal, _screenPalette, 768);
uint8 diff, maxDiff = 0;
for (int i = 0; i < 768; ++i) {
diff = ABS(palData[i] - fadePal[i]);
if (diff > maxDiff) {
maxDiff = diff;
}
}
int16 delayInc = delay << 8;
if (maxDiff != 0) {
delayInc /= maxDiff;
}
delay = delayInc;
for (diff = 1; diff <= maxDiff; ++diff) {
if (delayInc >= 512) {
break;
}
delayInc += delay;
}
int delayAcc = 0;
while (!_vm->quit()) {
delayAcc += delayInc;
bool needRefresh = false;
for (int i = 0; i < 768; ++i) {
int c1 = palData[i];
int c2 = fadePal[i];
if (c1 != c2) {
needRefresh = true;
if (c1 > c2) {
c2 += diff;
if (c1 < c2) {
c2 = c1;
}
}
if (c1 < c2) {
c2 -= diff;
if (c1 > c2) {
c2 = c1;
}
}
fadePal[i] = (uint8)c2;
}
}
if (!needRefresh) {
break;
}
setScreenPalette(fadePal);
_system->updateScreen();
//_system->delayMillis((delayAcc >> 8) * 1000 / 60);
_vm->delay((delayAcc >> 8) * 1000 / 60);
delayAcc &= 0xFF;
}
if (_vm->quit()) {
setScreenPalette(palData);
_system->updateScreen();
}
}
void Screen::setPaletteIndex(uint8 index, uint8 red, uint8 green, uint8 blue) {
debugC(9, kDebugLevelScreen, "Screen::setPaletteIndex(%u, %u, %u, %u)", index, red, green, blue);
_currentPalette[index * 3 + 0] = red;
_currentPalette[index * 3 + 1] = green;
_currentPalette[index * 3 + 2] = blue;
setScreenPalette(_currentPalette);
}
void Screen::setScreenPalette(const uint8 *palData) {
debugC(9, kDebugLevelScreen, "Screen::setScreenPalette(%p)", (const void *)palData);
if (palData != _screenPalette)
memcpy(_screenPalette, palData, 768);
uint8 screenPal[256 * 4];
for (int i = 0; i < 256; ++i) {
screenPal[4 * i + 0] = (palData[0] << 2) | (palData[0] & 3);
screenPal[4 * i + 1] = (palData[1] << 2) | (palData[1] & 3);
screenPal[4 * i + 2] = (palData[2] << 2) | (palData[2] & 3);
screenPal[4 * i + 3] = 0;
palData += 3;
}
_system->setPalette(screenPal, 0, 256);
}
void Screen::copyToPage0(int y, int h, uint8 page, uint8 *seqBuf) {
debugC(9, kDebugLevelScreen, "Screen::copyToPage0(%d, %d, %d, %p)", y, h, page, (const void *)seqBuf);
assert(y + h <= SCREEN_H);
const uint8 *src = getPagePtr(page) + y * SCREEN_W;
uint8 *dstPage = getPagePtr(0) + y * SCREEN_W;
for (int i = 0; i < h; ++i) {
for (int x = 0; x < SCREEN_W; ++x) {
if (seqBuf[x] != src[x]) {
seqBuf[x] = src[x];
dstPage[x] = src[x];
}
}
src += SCREEN_W;
seqBuf += SCREEN_W;
dstPage += SCREEN_W;
}
addDirtyRect(0, y, SCREEN_W, h);
clearOverlayRect(0, 0, y, SCREEN_W, h);
}
void Screen::copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPage, int dstPage, int flags) {
debugC(9, kDebugLevelScreen, "Screen::copyRegion(%d, %d, %d, %d, %d, %d, %d, %d, %d)", x1, y1, x2, y2, w, h, srcPage, dstPage, flags);
if (flags & CR_CLIPPED) {
if (x2 < 0) {
if (x2 <= -w)
return;
w += x2;
x1 -= x2;
x2 = 0;
} else if (x2 + w >= SCREEN_W) {
if (x2 > SCREEN_W)
return;
w = SCREEN_W - x2;
}
if (y2 < 0) {
if (y2 <= -h )
return;
h += y2;
y1 -= y2;
y2 = 0;
} else if (y2 + h >= SCREEN_H) {
if (y2 > SCREEN_H)
return;
h = SCREEN_H - y2;
}
}
assert(x1 + w <= SCREEN_W && y1 + h <= SCREEN_H);
const uint8 *src = getPagePtr(srcPage) + y1 * SCREEN_W + x1;
assert(x2 + w <= SCREEN_W && y2 + h <= SCREEN_H);
uint8 *dst = getPagePtr(dstPage) + y2 * SCREEN_W + x2;
if (dstPage == 0 || dstPage == 1)
addDirtyRect(x2, y2, w, h);
copyOverlayRegion(x1, y1, x2, y2, w, h, srcPage, dstPage);
if (flags & CR_X_FLIPPED) {
while (h--) {
for (int i = 0; i < w; ++i) {
if (src[i] || (flags & CR_NO_P_CHECK)) {
dst[w-i] = src[i];
}
}
src += SCREEN_W;
dst += SCREEN_W;
}
} else {
while (h--) {
for (int i = 0; i < w; ++i) {
if (src[i] || (flags & CR_NO_P_CHECK)) {
dst[i] = src[i];
}
}
src += SCREEN_W;
dst += SCREEN_W;
}
}
}
void Screen::copyRegionToBuffer(int pageNum, int x, int y, int w, int h, uint8 *dest) {
debugC(9, kDebugLevelScreen, "Screen::copyRegionToBuffer(%d, %d, %d, %d, %d)", pageNum, x, y, w, h);
assert(x >= 0 && x < Screen::SCREEN_W && y >= 0 && y < Screen::SCREEN_H && dest);
uint8 *pagePtr = getPagePtr(pageNum);
for (int i = y; i < y + h; i++) {
memcpy(dest + (i - y) * w, pagePtr + i * SCREEN_W + x, w);
}
}
void Screen::copyPage(uint8 srcPage, uint8 dstPage) {
debugC(9, kDebugLevelScreen, "Screen::copyPage(%d, %d)", srcPage, dstPage);
uint8 *src = getPagePtr(srcPage);
uint8 *dst = getPagePtr(dstPage);
memcpy(dst, src, SCREEN_W * SCREEN_H);
copyOverlayRegion(0, 0, 0, 0, SCREEN_W, SCREEN_H, srcPage, dstPage);
if (dstPage == 0 || dstPage == 1) _forceFullUpdate = true;
}
void Screen::copyBlockToPage(int pageNum, int x, int y, int w, int h, const uint8 *src) {
debugC(9, kDebugLevelScreen, "Screen::copyBlockToPage(%d, %d, %d, %d, %d, %p)", pageNum, x, y, w, h, (const void *)src);
assert(x >= 0 && x < Screen::SCREEN_W && y >= 0 && y < Screen::SCREEN_H);
uint8 *dst = getPagePtr(pageNum) + y * SCREEN_W + x;
if (pageNum == 0 || pageNum == 1)
addDirtyRect(x, y, w, h);
clearOverlayRect(pageNum, x, y, w, h);
while (h--) {
memcpy(dst, src, w);
dst += SCREEN_W;
src += w;
}
}
void Screen::copyFromCurPageBlock(int x, int y, int w, int h, const uint8 *src) {
debugC(9, kDebugLevelScreen, "Screen::copyFromCurPageBlock(%d, %d, %d, %d, %p)", x, y, w, h, (const void *)src);
if (x < 0) {
x = 0;
} else if (x >= 40) {
return;
}
if (x + w > 40) {
w = 40 - x;
}
if (y < 0) {
y = 0;
} else if (y >= 200) {
return;
}
if (y + h > 200) {
h = 200 - y;
}
uint8 *dst = getPagePtr(_curPage) + y * SCREEN_W + x * 8;
if (_curPage == 0 || _curPage == 1)
addDirtyRect(x*8, y, w*8, h);
clearOverlayRect(_curPage, x*8, y, w*8, h);
while (h--) {
memcpy(dst, src, w*8);
dst += SCREEN_W;
src += w*8;
}
}
void Screen::copyCurPageBlock(int x, int y, int w, int h, uint8 *dst) {
debugC(9, kDebugLevelScreen, "Screen::copyCurPageBlock(%d, %d, %d, %d, %p)", x, y, w, h, (const void *)dst);
assert(dst);
if (x < 0) {
x = 0;
} else if (x >= 40) {
return;
}
if (x + w > 40) {
w = 40 - x;
}
if (y < 0) {
y = 0;
} else if (y >= 200) {
return;
}
if (y + h > 200) {
h = 200 - y;
}
const uint8 *src = getPagePtr(_curPage) + y * SCREEN_W + x * 8;
while (h--) {
memcpy(dst, src, w*8);
dst += w*8;
src += SCREEN_W;
}
}
void Screen::shuffleScreen(int sx, int sy, int w, int h, int srcPage, int dstPage, int ticks, bool transparent) {
debugC(9, kDebugLevelScreen, "Screen::shuffleScreen(%d, %d, %d, %d, %d, %d, %d, %d)", sx, sy, w, h, srcPage, dstPage, ticks, transparent);
assert(sx >= 0 && w <= SCREEN_W);
int x;
uint16 x_offs[SCREEN_W];
for (x = 0; x < SCREEN_W; ++x) {
x_offs[x] = x;
}
for (x = 0; x < w; ++x) {
int i = _vm->_rnd.getRandomNumber(w - 1);
SWAP(x_offs[x], x_offs[i]);
}
assert(sy >= 0 && h <= SCREEN_H);
int y;
uint8 y_offs[SCREEN_H];
for (y = 0; y < SCREEN_H; ++y) {
y_offs[y] = y;
}
for (y = 0; y < h; ++y) {
int i = _vm->_rnd.getRandomNumber(h - 1);
SWAP(y_offs[y], y_offs[i]);
}
int32 start, now;
int wait;
for (y = 0; y < h && !_vm->quit(); ++y) {
start = (int32)_system->getMillis();
int y_cur = y;
for (x = 0; x < w; ++x) {
int i = sx + x_offs[x];
int j = sy + y_offs[y_cur];
++y_cur;
if (y_cur >= h) {
y_cur = 0;
}
uint8 color = getPagePixel(srcPage, i, j);
if (!transparent || color != 0) {
setPagePixel(dstPage, i, j, color);
}
}
// forcing full update for now
_forceFullUpdate = true;
updateScreen();
now = (int32)_system->getMillis();
wait = ticks * _vm->tickLength() - (now - start);
if (wait > 0) {
_vm->delay(wait);
}
}
copyOverlayRegion(sx, sy, sx, sy, w, h, srcPage, dstPage);
if (_vm->quit()) {
copyRegion(sx, sy, sx, sy, w, h, srcPage, dstPage);
_system->updateScreen();
}
}
void Screen::fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum) {
debugC(9, kDebugLevelScreen, "Screen::fillRect(%d, %d, %d, %d, %d, %d)", x1, y1, x2, y2, color, pageNum);
assert(x2 < SCREEN_W && y2 < SCREEN_H);
if (pageNum == -1) {
pageNum = _curPage;
}
uint8 *dst = getPagePtr(pageNum) + y1 * SCREEN_W + x1;
if (pageNum == 0 || pageNum == 1)
addDirtyRect(x1, y1, x2-x1+1, y2-y1+1);
clearOverlayRect(pageNum, x1, y1, x2-x1+1, y2-y1+1);
for (; y1 <= y2; ++y1) {
memset(dst, color, x2 - x1 + 1);
dst += SCREEN_W;
}
}
void Screen::drawBox(int x1, int y1, int x2, int y2, int color) {
debugC(9, kDebugLevelScreen, "Screen::drawBox(%i, %i, %i, %i, %i)", x1, y1, x2, y2, color);
drawClippedLine(x1, y1, x2, y1, color);
drawClippedLine(x1, y1, x1, y2, color);
drawClippedLine(x2, y1, x2, y2, color);
drawClippedLine(x1, y2, x2, y2, color);
}
void Screen::drawShadedBox(int x1, int y1, int x2, int y2, int color1, int color2) {
debugC(9, kDebugLevelScreen, "Screen::drawShadedBox(%i, %i, %i, %i, %i, %i)", x1, y1, x2, y2, color1, color2);
assert(x1 > 0 && y1 > 0);
hideMouse();
fillRect(x1, y1, x2, y1 + 1, color1);
fillRect(x2 - 1, y1, x2, y2, color1);
drawClippedLine(x1, y1, x1, y2, color2);
drawClippedLine(x1 + 1, y1 + 1, x1 + 1, y2 - 1, color2);
drawClippedLine(x1, y2, x2, y2, color2);
drawClippedLine(x1, y2 - 1, x2 - 1, y2 - 1, color2);
showMouse();
}
void Screen::drawClippedLine(int x1, int y1, int x2, int y2, int color) {
debugC(9, kDebugLevelScreen, "Screen::drawClippedLine(%i, %i, %i, %i, %i)", x1, y1, x2, y2, color);
if (x1 < 0)
x1 = 0;
else if (x1 > 319)
x1 = 319;
if (x2 < 0)
x2 = 0;
else if (x2 > 319)
x2 = 319;
if (y1 < 0)
y1 = 0;
else if (y1 > 199)
y1 = 199;
if (y2 < 0)
y2 = 0;
else if (y2 > 199)
y2 = 199;
if (x1 == x2)
if (y1 > y2)
drawLine(true, x1, y2, y1 - y2 + 1, color);
else
drawLine(true, x1, y1, y2 - y1 + 1, color);
else
if (x1 > x2)
drawLine(false, x2, y1, x1 - x2 + 1, color);
else
drawLine(false, x1, y1, x2 - x1 + 1, color);
}
void Screen::drawLine(bool vertical, int x, int y, int length, int color) {
debugC(9, kDebugLevelScreen, "Screen::drawLine(%i, %i, %i, %i, %i)", vertical, x, y, length, color);
uint8 *ptr = getPagePtr(_curPage) + y * SCREEN_W + x;
if (vertical) {
assert((y + length) <= SCREEN_H);
int currLine = 0;
while (currLine < length) {
*ptr = color;
ptr += SCREEN_W;
currLine++;
}
} else {
assert((x + length) <= SCREEN_W);
memset(ptr, color, length);
}
if (_curPage == 0 || _curPage == 1)
addDirtyRect(x, y, (vertical) ? 1 : length, (vertical) ? length : 1);
clearOverlayRect(_curPage, x, y, (vertical) ? 1 : length, (vertical) ? length : 1);
}
void Screen::setAnimBlockPtr(int size) {
debugC(9, kDebugLevelScreen, "Screen::setAnimBlockPtr(%d)", size);
delete [] _animBlockPtr;
_animBlockPtr = new uint8[size];
assert(_animBlockPtr);
memset(_animBlockPtr, 0, size);
_animBlockSize = size;
}
void Screen::setTextColorMap(const uint8 *cmap) {
debugC(9, kDebugLevelScreen, "Screen::setTextColorMap(%p)", (const void *)cmap);
setTextColor(cmap, 0, 11);
}
void Screen::setTextColor(const uint8 *cmap, int a, int b) {
debugC(9, kDebugLevelScreen, "Screen::setTextColor(%p, %d, %d)", (const void *)cmap, a, b);
for (int i = a; i <= b; ++i) {
_textColorsMap[i] = *cmap++;
}
}
bool Screen::loadFont(FontId fontId, const char *filename) {
debugC(9, kDebugLevelScreen, "Screen::loadFont(%d, '%s')", fontId, filename);
Font *fnt = &_fonts[fontId];
if (!fnt)
error("fontId %d is invalid", fontId);
if (fnt->fontData)
delete [] fnt->fontData;
uint32 sz = 0;
uint8 *fontData = fnt->fontData = _vm->resource()->fileData(filename, &sz);
if (!fontData || !sz)
error("couldn't load font file '%s'", filename);
uint16 fontSig = READ_LE_UINT16(fontData + 2);
if (fontSig != 0x500)
error("Invalid font data (file '%s')", filename);
fnt->charWidthTable = fontData + READ_LE_UINT16(fontData + 8);
fnt->charSizeOffset = READ_LE_UINT16(fontData + 4);
fnt->charBitmapOffset = READ_LE_UINT16(fontData + 6);
fnt->charWidthTableOffset = READ_LE_UINT16(fontData + 8);
fnt->charHeightTableOffset = READ_LE_UINT16(fontData + 0xC);
return true;
}
Screen::FontId Screen::setFont(FontId fontId) {
debugC(9, kDebugLevelScreen, "Screen::setFont(%d)", fontId);
FontId prev = _currentFont;
_currentFont = fontId;
return prev;
}
int Screen::getFontHeight() const {
return *(_fonts[_currentFont].fontData + _fonts[_currentFont].charSizeOffset + 4);
}
int Screen::getFontWidth() const {
return *(_fonts[_currentFont].fontData + _fonts[_currentFont].charSizeOffset + 5);
}
int Screen::getCharWidth(uint16 c) const {
debugC(9, kDebugLevelScreen, "Screen::getCharWidth('%c'|%d)", c & 0xFF, c);
if (c & 0xFF00)
return SJIS_CHARSIZE >> 1;
return (int)_fonts[_currentFont].charWidthTable[c] + _charWidth;
}
int Screen::getTextWidth(const char *str) const {
debugC(9, kDebugLevelScreen, "Screen::getTextWidth('%s')", str);
int curLineLen = 0;
int maxLineLen = 0;
while (1) {
uint c = *str++;
c &= 0xFF;
if (c == 0) {
break;
} else if (c == '\r') {
if (curLineLen > maxLineLen) {
maxLineLen = curLineLen;
} else {
curLineLen = 0;
}
} else {
if (c <= 0x7F || !_useSJIS)
curLineLen += getCharWidth(c);
else {
c = READ_LE_UINT16(str - 1);
++str;
curLineLen += getCharWidth(c);
}
}
}
return MAX(curLineLen, maxLineLen);
}
void Screen::printText(const char *str, int x, int y, uint8 color1, uint8 color2) {
debugC(9, kDebugLevelScreen, "Screen::printText('%s', %d, %d, 0x%X, 0x%X)", str, x, y, color1, color2);
uint8 cmap[2];
cmap[0] = color2;
cmap[1] = color1;
setTextColor(cmap, 0, 1);
Font *fnt = &_fonts[_currentFont];
const uint8 charHeightFnt = *(fnt->fontData + fnt->charSizeOffset + 4);
uint8 charHeight = 0;
if (x < 0) {
x = 0;
} else if (x >= SCREEN_W) {
return;
}
int x_start = x;
if (y < 0) {
y = 0;
} else if (y >= SCREEN_H) {
return;
}
while (1) {
uint c = *str++;
c &= 0xFF;
if (c == 0) {
break;
} else if (c == '\r') {
x = x_start;
y += charHeight + _charOffset;
} else {
int charWidth = getCharWidth(c);
if (x + charWidth > SCREEN_W) {
x = x_start;
y += charHeight + _charOffset;
if (y >= SCREEN_H) {
break;
}
}
if (c <= 0x7F || !_useSJIS) {
drawCharANSI(c, x, y);
charHeight = charHeightFnt;
} else {
c = READ_LE_UINT16(str - 1);
++str;
charWidth = getCharWidth(c);
charHeight = SJIS_CHARSIZE >> 1;
drawCharSJIS(c, x, y);
}
x += charWidth;
}
}
}
void Screen::drawCharANSI(uint8 c, int x, int y) {
debugC(9, kDebugLevelScreen, "Screen::drawChar('%c', %d, %d)", c, x, y);
Font *fnt = &_fonts[_currentFont];
uint8 *dst = getPagePtr(_curPage) + y * SCREEN_W + x;
uint16 bitmapOffset = READ_LE_UINT16(fnt->fontData + fnt->charBitmapOffset + c * 2);
if (bitmapOffset == 0) {
return;
}
uint8 charWidth = *(fnt->fontData + fnt->charWidthTableOffset + c);
if (charWidth + x > SCREEN_W) {
return;
}
uint8 charH0 = *(fnt->fontData + fnt->charSizeOffset + 4);
if (charH0 + y > SCREEN_H) {
return;
}
uint8 charH1 = *(fnt->fontData + fnt->charHeightTableOffset + c * 2);
uint8 charH2 = *(fnt->fontData + fnt->charHeightTableOffset + c * 2 + 1);
charH0 -= charH1 + charH2;
const uint8 *src = fnt->fontData + bitmapOffset;
const int pitch = SCREEN_W - charWidth;
while (charH1--) {
uint8 col = _textColorsMap[0];
for (int i = 0; i < charWidth; ++i) {
if (col != 0) {
*dst = col;
}
++dst;
}
dst += pitch;
}
while (charH2--) {
uint8 b = 0;
for (int i = 0; i < charWidth; ++i) {
uint8 col;
if (i & 1) {
col = _textColorsMap[b >> 4];
} else {
b = *src++;
col = _textColorsMap[b & 0xF];
}
if (col != 0) {
*dst = col;
}
++dst;
}
dst += pitch;
}
while (charH0--) {
uint8 col = _textColorsMap[0];
for (int i = 0; i < charWidth; ++i) {
if (col != 0) {
*dst = col;
}
++dst;
}
dst += pitch;
}
if (_curPage == 0 || _curPage == 1)
addDirtyRect(x, y, charWidth, *(fnt->fontData + fnt->charSizeOffset + 4));
}
void Screen::setScreenDim(int dim) {
debugC(9, kDebugLevelScreen, "Screen::setScreenDim(%d)", dim);
if (_vm->game() == GI_KYRA1) {
assert(dim < _screenDimTableCount);
_curDim = &_screenDimTable[dim];
} else {
assert(dim < _screenDimTableCountK3);
_curDim = &_screenDimTableK3[dim];
}
// XXX
}
void Screen::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y, int sd, int flags, ...) {
debugC(9, kDebugLevelScreen, "Screen::drawShape(%d, %p, %d, %d, %d, 0x%.04X, ...)", pageNum, (const void *)shapeData, x, y, sd, flags);
if (!shapeData)
return;
va_list args;
va_start(args, flags);
static int drawShapeVar1 = 0;
static int drawShapeVar2[] = {
1, 3, 2, 5, 4, 3, 2, 1
};
static int drawShapeVar3 = 1;
static int drawShapeVar4 = 0;
static int drawShapeVar5 = 0;
uint8 *table = 0;
int tableLoopCount = 0;
int drawLayer = 0;
uint8 *table2 = 0;
uint8 *table3 = 0;
uint8 *table4 = 0;
if (flags & 0x8000) {
table2 = va_arg(args, uint8*);
}
if (flags & 0x100) {
table = va_arg(args, uint8*);
tableLoopCount = va_arg(args, int);
if (!tableLoopCount)
flags &= 0xFFFFFEFF;
}
if (flags & 0x1000) {
table3 = va_arg(args, uint8*);
table4 = va_arg(args, uint8*);
}
if (flags & 0x200) {
drawShapeVar1 += 1;
drawShapeVar1 &= 7;
drawShapeVar3 = drawShapeVar2[drawShapeVar1];
drawShapeVar4 = 0;
drawShapeVar5 = 256;
}
if (flags & 0x4000) {
drawShapeVar5 = va_arg(args, int);
}
if (flags & 0x800) {
drawLayer = va_arg(args, int);
}
int scale_w, scale_h;
if (flags & DSF_SCALE) {
scale_w = va_arg(args, int);
scale_h = va_arg(args, int);
} else {
scale_w = 0x100;
scale_h = 0x100;
}
int ppc = (flags >> 8) & 0x3F;
const uint8 *src = shapeData;
if (_vm->gameFlags().useAltShapeHeader) {
src += 2;
}
uint16 shapeFlags = READ_LE_UINT16(src); src += 2;
int shapeHeight = *src++;
int scaledShapeHeight = (shapeHeight * scale_h) >> 8;
if (scaledShapeHeight == 0) {
va_end(args);
return;
}
int shapeWidth = READ_LE_UINT16(src); src += 2;
int scaledShapeWidth = (shapeWidth * scale_w) >> 8;
if (scaledShapeWidth == 0) {
va_end(args);
return;
}
if (flags & DSF_CENTER) {
x -= scaledShapeWidth >> 1;
y -= scaledShapeHeight >> 1;
}
src += 3;
uint16 frameSize = READ_LE_UINT16(src); src += 2;
if ((shapeFlags & 1) || (flags & 0x400)) {
src += 0x10;
}
if (!(shapeFlags & 2)) {
decodeFrame4(src, _animBlockPtr, frameSize);
src = _animBlockPtr;
}
int shapeSize = shapeWidth * shapeHeight;
if (_decodeShapeBufferSize < shapeSize) {
delete [] _decodeShapeBuffer;
_decodeShapeBuffer = new uint8[shapeSize];
_decodeShapeBufferSize = shapeSize;
}
if (!_decodeShapeBuffer) {
_decodeShapeBufferSize = 0;
va_end(args);
return;
}
memset(_decodeShapeBuffer, 0, _decodeShapeBufferSize);
uint8 *decodedShapeFrame = _decodeShapeBuffer;
// only used if shapeFlag & 1 is NOT zero
const uint8 *colorTable = shapeData + 10;
if (_vm->gameFlags().useAltShapeHeader) {
colorTable += 2;
}
for (int j = 0; j < shapeHeight; ++j) {
uint8 *dsbNextLine = decodedShapeFrame + shapeWidth;
int count = shapeWidth;
while (count > 0) {
uint8 code = *src++;
if (code != 0) {
// this is guessed
if (shapeFlags & 1) {
if (code < 16) {
*decodedShapeFrame++ = colorTable[code];
}
} else {
*decodedShapeFrame++ = code;
}
--count;
} else {
code = *src++;
decodedShapeFrame += code;
count -= code;
}
}
decodedShapeFrame = dsbNextLine;
}
uint16 sx1 = _screenDimTable[sd].sx * 8;
uint16 sy1 = _screenDimTable[sd].sy;
uint16 sx2 = sx1 + _screenDimTable[sd].w * 8;
uint16 sy2 = sy1 + _screenDimTable[sd].h;
if (flags & DSF_WND_COORDS) {
x += sx1;
y += sy1;
}
int x1, x2;
if (x >= 0) {
x1 = 0;
if (x + scaledShapeWidth < sx2) {
x2 = scaledShapeWidth;
} else {
x2 = sx2 - x;
}
} else {
x2 = scaledShapeWidth;
x1 = -x;
x = 0;
if (x2 > sx2) {
x2 = sx2;
}
}
int y1, y2;
if (y >= 0) {
y1 = 0;
if (y + scaledShapeHeight < sy2) {
y2 = scaledShapeHeight;
} else {
y2 = sy2 - y;
}
} else {
y2 = scaledShapeHeight;
y1 = -y;
y = 0;
if (y2 > sy2) {
y2 = sy2;
}
}
uint8 *dst = getPagePtr(pageNum) + y * SCREEN_W + x;
uint8 *dstStart = getPagePtr(pageNum);
if (pageNum == 0 || pageNum == 1)
addDirtyRect(x, y, x2-x1, y2-y1);
clearOverlayRect(pageNum, x, y, x2-x1, y2-y1);
int scaleYTable[SCREEN_H];
assert(y1 >= 0 && y2 < SCREEN_H);
for (y = y1; y < y2; ++y) {
scaleYTable[y] = (y << 8) / scale_h;
}
int scaleXTable[SCREEN_W];
assert(x1 >= 0 && x2 < SCREEN_W);
for (x = x1; x < x2; ++x) {
scaleXTable[x] = (x << 8) / scale_w;
}
const uint8 *shapeBuffer = _decodeShapeBuffer;
if (flags & DSF_Y_FLIPPED) {
shapeBuffer += shapeWidth * (shapeHeight - 1);
}
if (flags & DSF_X_FLIPPED) {
shapeBuffer += shapeWidth - 1;
}
for (y = y1; y < y2; ++y) {
uint8 *dstNextLine = dst + SCREEN_W;
int j = scaleYTable[y];
if (flags & DSF_Y_FLIPPED) {
j = -j;
}
for (x = x1; x < x2; ++x) {
int xpos = scaleXTable[x];
if (flags & DSF_X_FLIPPED) {
xpos = -xpos;
}
uint8 color = shapeBuffer[j * shapeWidth + xpos];
if (color != 0) {
switch (ppc) {
case 0:
*dst = color;
break;
case 1:
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
break;
case 2: {
int temp = drawShapeVar4 + drawShapeVar5;
if (temp & 0xFF00) {
drawShapeVar4 = temp & 0xFF;
dst += drawShapeVar3;
color = *dst;
dst -= drawShapeVar3;
} else {
drawShapeVar4 = temp;
}
}
break;
case 7:
case 3:
color = *dst;
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
break;
case 4:
color = table2[color];
break;
case 5:
color = table2[color];
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
break;
case 6: {
int temp = drawShapeVar4 + drawShapeVar5;
if (temp & 0xFF00) {
drawShapeVar4 = temp & 0xFF;
dst += drawShapeVar3;
color = *dst;
dst -= drawShapeVar3;
} else {
drawShapeVar4 = temp;
color = table2[color];
}
}
break;
case 8: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
}
}
break;
case 9: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
} else {
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
}
}
break;
case 10: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
drawShapeVar4 = pixel;
} else {
int temp = drawShapeVar4 + drawShapeVar5;
if (temp & 0xFF00) {
dst += drawShapeVar3;
color = *dst;
dst -= drawShapeVar3;
}
drawShapeVar4 = temp & 0xFF;
}
}
break;
case 15:
case 11: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
} else {
color = *dst;
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
}
}
break;
case 12: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
} else {
color = table2[color];
}
}
break;
case 13: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
} else {
color = table2[color];
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
}
}
break;
case 14: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
drawShapeVar4 = pixel;
} else {
int temp = drawShapeVar4 + drawShapeVar5;
if (temp & 0xFF00) {
dst += drawShapeVar3;
color = *dst;
dst -= drawShapeVar3;
drawShapeVar4 = temp % 0xFF;
} else {
drawShapeVar4 = temp;
color = table2[color];
}
}
}
break;
case 16: {
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
break;
case 17: {
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
break;
case 18: {
int temp = drawShapeVar4 + drawShapeVar5;
if (temp & 0xFF00) {
drawShapeVar4 = temp & 0xFF;
dst += drawShapeVar3;
color = *dst;
dst -= drawShapeVar3;
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
} else {
drawShapeVar4 = temp;
}
}
break;
case 23:
case 19: {
color = *dst;
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
break;
case 20: {
color = table2[color];
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
break;
case 21: {
color = table2[color];
for (int i = 0; i < tableLoopCount; ++i) {
color = table[color];
}
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
break;
case 22: {
int temp = drawShapeVar4 + drawShapeVar5;
if (temp & 0xFF00) {
drawShapeVar4 = temp & 0xFF;
dst += drawShapeVar3;
color = *dst;
dst -= drawShapeVar3;
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
} else {
drawShapeVar4 = temp;
color = table2[color];
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
}
break;
case 24: {
int offset = dst - dstStart;
uint8 pixel = *(_shapePages[0] + offset);
pixel &= 0x7F;
pixel &= 0x87;
if (drawLayer < pixel) {
color = *(_shapePages[1] + offset);
}
uint8 newColor = table3[color];
if (!(newColor & 0x80)) {
color = *dst;
color = table4[color + (newColor << 8)];
}
}
break;
default:
warning("unhandled ppc: %d", ppc);
break;
}
*dst = color;
}
++dst;
}
dst = dstNextLine;
}
va_end(args);
}
void Screen::decodeFrame3(const uint8 *src, uint8 *dst, uint32 size) {
debugC(9, kDebugLevelScreen, "Screen::decodeFrame3(%p, %p, %d)", (const void *)src, (const void *)dst, size);
const uint8 *dstEnd = dst + size;
while (dst < dstEnd) {
int8 code = *src++;
if (code == 0) {
uint16 sz = READ_BE_UINT16(src);
src += 2;
memset(dst, *src++, sz);
dst += sz;
} else if (code < 0) {
memset(dst, *src++, -code);
dst -= code;
} else {
memcpy(dst, src, code);
dst += code;
src += code;
}
}
}
uint Screen::decodeFrame4(const uint8 *src, uint8 *dst, uint32 dstSize) {
debugC(9, kDebugLevelScreen, "Screen::decodeFrame4(%p, %p, %d)", (const void *)src, (const void *)dst, dstSize);
uint8 *dstOrig = dst;
uint8 *dstEnd = dst + dstSize;
while (1) {
int count = dstEnd - dst;
if (count == 0) {
break;
}
uint8 code = *src++;
if (!(code & 0x80)) { // 8th bit isn't set
int len = MIN(count, (code >> 4) + 3); //upper half of code is the length
int offs = ((code & 0xF) << 8) | *src++; //lower half of code as byte 2 of offset.
const uint8 *dstOffs = dst - offs;
while (len--) {
*dst++ = *dstOffs++;
}
} else if (code & 0x40) { // 7th bit is set
int len = (code & 0x3F) + 3;
if (code == 0xFE) {
len = READ_LE_UINT16(src); src += 2;
if (len > count) {
len = count;
}
memset(dst, *src++, len); dst += len;
} else {
if (code == 0xFF) {
len = READ_LE_UINT16(src); src += 2;
}
int offs = READ_LE_UINT16(src); src += 2;
if (len > count) {
len = count;
}
const uint8 *dstOffs = dstOrig + offs;
while (len--) {
*dst++ = *dstOffs++;
}
}
} else if (code != 0x80) { // not just the 8th bit set.
//Copy some bytes from source to dest.
int len = MIN(count, code & 0x3F);
while (len--) {
*dst++ = *src++;
}
} else {
break;
}
}
return dst - dstOrig;
}
void Screen::decodeFrameDelta(uint8 *dst, const uint8 *src) {
debugC(9, kDebugLevelScreen, "Screen::decodeFrameDelta(%p, %p)", (const void *)dst, (const void *)src);
while (1) {
uint8 code = *src++;
if (code == 0) {
uint8 len = *src++;
code = *src++;
while (len--) {
*dst++ ^= code;
}
} else if (code & 0x80) {
code -= 0x80;
if (code != 0) {
dst += code;
} else {
uint16 subcode = READ_LE_UINT16(src); src += 2;
if (subcode == 0) {
break;
} else if (subcode & 0x8000) {
subcode -= 0x8000;
if (subcode & 0x4000) {
uint16 len = subcode - 0x4000;
code = *src++;
while (len--) {
*dst++ ^= code;
}
} else {
while (subcode--) {
*dst++ ^= *src++;
}
}
} else {
dst += subcode;
}
}
} else {
while (code--) {
*dst++ ^= *src++;
}
}
}
}
void Screen::decodeFrameDeltaPage(uint8 *dst, const uint8 *src, int pitch, bool noXor) {
debugC(9, kDebugLevelScreen, "Screen::decodeFrameDeltaPage(%p, %p, %d, %d)", (const void *)dst, (const void *)src, pitch, noXor);
if (noXor) {
wrapped_decodeFrameDeltaPage<true>(dst, src, pitch);
} else {
wrapped_decodeFrameDeltaPage<false>(dst, src, pitch);
}
}
template<bool noXor>
void Screen::wrapped_decodeFrameDeltaPage(uint8 *dst, const uint8 *src, int pitch) {
debugC(9, kDebugLevelScreen, "Screen::wrapped_decodeFrameDeltaPage(%p, %p, %d)", (const void *)dst, (const void *)src, pitch);
int count = 0;
uint8 *dstNext = dst;
while (1) {
uint8 code = *src++;
if (code == 0) {
uint8 len = *src++;
code = *src++;
while (len--) {
if (noXor) {
*dst++ = code;
} else {
*dst++ ^= code;
}
if (++count == pitch) {
count = 0;
dstNext += SCREEN_W;
dst = dstNext;
}
}
} else if (code & 0x80) {
code -= 0x80;
if (code != 0) {
dst += code;
count += code;
while (count >= pitch) {
count -= pitch;
dstNext += SCREEN_W;
dst = dstNext + count;
}
} else {
uint16 subcode = READ_LE_UINT16(src); src += 2;
if (subcode == 0) {
break;
} else if (subcode & 0x8000) {
subcode -= 0x8000;
if (subcode & 0x4000) {
uint16 len = subcode - 0x4000;
code = *src++;
while (len--) {
if (noXor) {
*dst++ = code;
} else {
*dst++ ^= code;
}
if (++count == pitch) {
count = 0;
dstNext += SCREEN_W;
dst = dstNext;
}
}
} else {
while (subcode--) {
if (noXor) {
*dst++ = *src++;
} else {
*dst++ ^= *src++;
}
if (++count == pitch) {
count = 0;
dstNext += SCREEN_W;
dst = dstNext;
}
}
}
} else {
dst += subcode;
count += subcode;
while (count >= pitch) {
count -= pitch;
dstNext += SCREEN_W;
dst = dstNext + count;
}
}
}
} else {
while (code--) {
if (noXor) {
*dst++ = *src++;
} else {
*dst++ ^= *src++;
}
if (++count == pitch) {
count = 0;
dstNext += SCREEN_W;
dst = dstNext;
}
}
}
}
}
uint8 *Screen::encodeShape(int x, int y, int w, int h, int flags) {
debugC(9, kDebugLevelScreen, "Screen::encodeShape(%d, %d, %d, %d, %d)", x, y, w, h, flags);
uint8 *srcPtr = &_pagePtrs[_curPage][y * SCREEN_W + x];
int16 shapeSize = 0;
uint8 *tmp = srcPtr;
int xpos = w;
for (int i = h; i > 0; --i) {
uint8 *start = tmp;
shapeSize += w;
xpos = w;
while (xpos) {
uint8 value = *tmp++;
--xpos;
if (!value) {
shapeSize += 2;
int16 curX = xpos;
bool skip = false;
while (xpos) {
value = *tmp++;
--xpos;
if (value) {
skip = true;
break;
}
}
if (!skip)
++curX;
curX -= xpos;
shapeSize -= curX;
while (curX > 0xFF) {
curX -= 0xFF;
shapeSize += 2;
}
}
}
tmp = start + SCREEN_W;
}
int16 shapeSize2 = shapeSize;
if (_vm->gameFlags().useAltShapeHeader) {
shapeSize += 12;
} else {
shapeSize += 10;
}
if (flags & 1)
shapeSize += 16;
static uint8 table[274];
int tableIndex = 0;
uint8 *newShape = 0;
newShape = new uint8[shapeSize+16];
assert(newShape);
byte *dst = newShape;
if (_vm->gameFlags().useAltShapeHeader)
dst += 2;
WRITE_LE_UINT16(dst, (flags & 3)); dst += 2;
*dst = h; dst += 1;
WRITE_LE_UINT16(dst, w); dst += 2;
*dst = h; dst += 1;
WRITE_LE_UINT16(dst, shapeSize); dst += 2;
WRITE_LE_UINT16(dst, shapeSize2); dst += 2;
byte *src = srcPtr;
if (flags & 1) {
dst += 16;
memset(table, 0, sizeof(uint8)*274);
tableIndex = 1;
}
for (int ypos = h; ypos > 0; --ypos) {
uint8 *srcBackUp = src;
xpos = w;
while (xpos) {
uint8 value = *src++;
if (value) {
if (flags & 1) {
if (!table[value]) {
if (tableIndex == 16) {
value = 1;
} else {
table[0x100+tableIndex] = value;
table[value] = tableIndex;
++tableIndex;
value = table[value];
}
} else {
value = table[value];
}
}
--xpos;
*dst++ = value;
} else {
int16 temp = 1;
--xpos;
while (xpos) {
if (*src)
break;
++src;
++temp;
--xpos;
}
while (temp > 0xFF) {
*dst++ = 0;
*dst++ = 0xFF;
temp -= 0xFF;
}
if (temp & 0xFF) {
*dst++ = 0;
*dst++ = temp & 0xFF;
}
}
}
src = srcBackUp + SCREEN_W;
}
if (!(flags & 2)) {
if (shapeSize > _animBlockSize) {
dst = newShape;
if (_vm->gameFlags().useAltShapeHeader) {
dst += 2;
}
flags = READ_LE_UINT16(dst);
flags |= 2;
WRITE_LE_UINT16(dst, flags);
} else {
src = newShape;
if (_vm->gameFlags().useAltShapeHeader) {
src += 2;
}
if (flags & 1) {
src += 16;
}
src += 10;
uint8 *shapePtrBackUp = src;
dst = _animBlockPtr;
memcpy(dst, src, shapeSize2);
int16 size = encodeShapeAndCalculateSize(_animBlockPtr, shapePtrBackUp, shapeSize2);
if (size > shapeSize2) {
shapeSize -= shapeSize2 - size;
uint8 *newShape2 = new uint8[shapeSize];
assert(newShape2);
memcpy(newShape2, newShape, shapeSize);
delete [] newShape;
newShape = newShape2;
} else {
dst = shapePtrBackUp;
src = _animBlockPtr;
memcpy(dst, src, shapeSize2);
dst = newShape;
flags = READ_LE_UINT16(dst);
flags |= 2;
WRITE_LE_UINT16(dst, flags);
}
}
}
dst = newShape;
if (_vm->gameFlags().useAltShapeHeader) {
dst += 2;
}
WRITE_LE_UINT16((dst + 6), shapeSize);
if (flags & 1) {
dst = newShape + 10;
if (_vm->gameFlags().useAltShapeHeader) {
dst += 2;
}
src = &table[0x100];
memcpy(dst, src, sizeof(uint8)*16);
}
return newShape;
}
int16 Screen::encodeShapeAndCalculateSize(uint8 *from, uint8 *to, int size_to) {
debugC(9, kDebugLevelScreen, "Screen::encodeShapeAndCalculateSize(%p, %p, %d)", (const void *)from, (const void *)to, size_to);
byte *fromPtrEnd = from + size_to;
bool skipPixel = true;
byte *tempPtr = 0;
byte *toPtr = to;
byte *fromPtr = from;
byte *toPtr2 = to;
*to++ = 0x81;
*to++ = *from++;
while (from < fromPtrEnd) {
byte *curToPtr = to;
to = fromPtr;
int size = 1;
while (true) {
byte curPixel = *from;
if (curPixel == *(from+0x40)) {
byte *toBackUp = to;
to = from;
for (int i = 0; i < (fromPtrEnd - from); ++i) {
if (*to++ != curPixel)
break;
}
--to;
uint16 diffSize = (to - from);
if (diffSize >= 0x41) {
skipPixel = false;
from = to;
to = curToPtr;
*to++ = 0xFE;
WRITE_LE_UINT16(to, diffSize); to += 2;
*to++ = (size >> 8) & 0xFF;
curToPtr = to;
to = toBackUp;
continue;
} else {
to = toBackUp;
}
}
bool breakLoop = false;
while (true) {
if ((from - to) == 0) {
breakLoop = true;
break;
}
for (int i = 0; i < (from - to); ++i) {
if (*to++ == curPixel)
break;
}
if (*to == curPixel) {
if (*(from+size-1) == *(to+size-2))
break;
byte *fromBackUp = from;
byte *toBackUp = to;
--to;
for (int i = 0; i < (fromPtrEnd - from); ++i) {
if (*from++ != *to++)
break;
}
if (*(from - 1) == *(to - 1))
++to;
from = fromBackUp;
int temp = to - toBackUp;
to = toBackUp;
if (temp >= size) {
size = temp;
tempPtr = toBackUp - 1;
}
break;
} else {
breakLoop = true;
break;
}
}
if (breakLoop)
break;
}
to = curToPtr;
if (size > 2) {
uint16 word = 0;
if (size <= 0x0A) {
uint16 diffSize = from - tempPtr;
if (size <= 0x0FFF) {
byte highByte = ((diffSize & 0xFF00) >> 8) + (((size & 0xFF) - 3) << 4);
word = ((diffSize & 0xFF) << 8) | highByte;
WRITE_LE_UINT16(to, word); to += 2;
from += size;
skipPixel = false;
continue;
}
}
if (size > 0x40) {
*to++ = 0xFF;
WRITE_LE_UINT16(to, size); to += 2;
} else {
*to++ = ((size & 0xFF) - 3) | 0xC0;
}
word = tempPtr - fromPtr;
WRITE_LE_UINT16(to, word); to += 2;
from += size;
skipPixel = false;
} else {
if (!skipPixel) {
toPtr2 = to;
*to++ = 0x80;
}
if (*toPtr2 == 0xBF) {
toPtr2 = to;
*to++ = 0x80;
}
++(*toPtr2);
*to++ = *from++;
skipPixel = true;
}
}
*to++ = 0x80;
return (to - toPtr);
}
int Screen::getRectSize(int x, int y) {
if (x < 1) {
x = 1;
} else if (x > 40) {
x = 40;
}
if (y < 1) {
y = 1;
} else if (y > 200) {
y = 200;
}
return ((x*y) << 3);
}
void Screen::hideMouse() {
debugC(9, kDebugLevelScreen, "Screen::hideMouse()");
++_mouseLockCount;
CursorMan.showMouse(false);
}
void Screen::showMouse() {
debugC(9, kDebugLevelScreen, "Screen::showMouse()");
if (_mouseLockCount == 1) {
CursorMan.showMouse(true);
}
if (_mouseLockCount > 0)
_mouseLockCount--;
}
void Screen::setShapePages(int page1, int page2) {
debugC(9, kDebugLevelScreen, "Screen::setShapePages(%d, %d)", page1, page2);
_shapePages[0] = _pagePtrs[page1];
_shapePages[1] = _pagePtrs[page2];
}
void Screen::setMouseCursor(int x, int y, byte *shape) {
debugC(9, kDebugLevelScreen, "Screen::setMouseCursor(%d, %d, %p)", x, y, (const void *)shape);
if (!shape)
return;
// if mouseDisabled
// return _mouseShape
if (_vm->gameFlags().useAltShapeHeader)
shape += 2;
int mouseHeight = *(shape + 2);
int mouseWidth = (READ_LE_UINT16(shape + 3)) + 2;
if (_vm->gameFlags().useAltShapeHeader)
shape -= 2;
if (_vm->gameFlags().useHiResOverlay) {
mouseWidth <<= 1;
mouseHeight <<= 1;
fillRect(mouseWidth, 0, mouseWidth, mouseHeight, 0, 8);
}
uint8 *cursor = new uint8[mouseHeight * mouseWidth];
fillRect(0, 0, mouseWidth, mouseHeight, 0, 8);
drawShape(8, shape, 0, 0, 0, 0);
int xOffset = 0;
if (_vm->gameFlags().useHiResOverlay) {
xOffset = mouseWidth;
scale2x(getPagePtr(8) + mouseWidth, SCREEN_W, getPagePtr(8), SCREEN_W, mouseWidth, mouseHeight);
}
CursorMan.showMouse(false);
copyRegionToBuffer(8, xOffset, 0, mouseWidth, mouseHeight, cursor);
CursorMan.replaceCursor(cursor, mouseWidth, mouseHeight, x, y, 0);
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::copyScreenFromRect(int x, int y, int w, int h, const uint8 *ptr) {
debugC(9, kDebugLevelScreen, "Screen::copyScreenFromRect(%d, %d, %d, %d, %p)", x, y, w, h, (const void *)ptr);
x <<= 3; w <<= 3;
const uint8 *src = ptr;
uint8 *dst = &_pagePtrs[0][y * SCREEN_W + x];
for (int i = 0; i < h; ++i) {
memcpy(dst, src, w);
src += w;
dst += SCREEN_W;
}
addDirtyRect(x, y, w, h);
clearOverlayRect(0, x, y, w, h);
}
void Screen::copyScreenToRect(int x, int y, int w, int h, uint8 *ptr) {
debugC(9, kDebugLevelScreen, "Screen::copyScreenToRect(%d, %d, %d, %d, %p)", x, y, w, h, (const void *)ptr);
x <<= 3; w <<= 3;
const uint8 *src = &_pagePtrs[0][y * SCREEN_W + x];
uint8 *dst = ptr;
for (int i = 0; i < h; ++i) {
memcpy(dst, src, w);
dst += w;
src += SCREEN_W;
}
}
uint8 *Screen::getPalette(int num) {
debugC(9, kDebugLevelScreen, "Screen::getPalette(%d)", num);
assert(num >= 0 && num < ARRAYSIZE(_palettes)+1);
if (num == 0) {
return _currentPalette;
}
return _palettes[num-1];
}
byte Screen::getShapeFlag1(int x, int y) {
debugC(9, kDebugLevelScreen, "Screen::getShapeFlag1(%d, %d)", x, y);
uint8 color = _shapePages[0][y * SCREEN_W + x];
color &= 0x80;
color ^= 0x80;
if (color & 0x80) {
return 1;
}
return 0;
}
byte Screen::getShapeFlag2(int x, int y) {
debugC(9, kDebugLevelScreen, "Screen::getShapeFlag2(%d, %d)", x, y);
uint8 color = _shapePages[0][y * SCREEN_W + x];
color &= 0x7F;
color &= 0x87;
return color;
}
int Screen::setNewShapeHeight(uint8 *shape, int height) {
debugC(9, kDebugLevelScreen, "Screen::setNewShapeHeight(%p, %d)", (const void *)shape, height);
if (_vm->gameFlags().useAltShapeHeader)
shape += 2;
int oldHeight = shape[2];
shape[2] = height;
return oldHeight;
}
int Screen::resetShapeHeight(uint8 *shape) {
debugC(9, kDebugLevelScreen, "Screen::setNewShapeHeight(%p)", (const void *)shape);
if (_vm->gameFlags().useAltShapeHeader)
shape += 2;
int oldHeight = shape[2];
shape[2] = shape[5];
return oldHeight;
}
void Screen::addBitBlitRect(int x, int y, int w, int h) {
debugC(9, kDebugLevelScreen, "Screen::addBitBlitRects(%d, %d, %d, %d)", x, y, w, h);
if (_bitBlitNum >= BITBLIT_RECTS) {
error("too many bit blit rects");
}
_bitBlitRects[_bitBlitNum].x = x;
_bitBlitRects[_bitBlitNum].y = y;
_bitBlitRects[_bitBlitNum].x2 = w;
_bitBlitRects[_bitBlitNum].y2 = h;
++_bitBlitNum;
}
void Screen::bitBlitRects() {
debugC(9, kDebugLevelScreen, "Screen::bitBlitRects()");
Rect *cur = _bitBlitRects;
while (_bitBlitNum) {
_bitBlitNum--;
copyRegion(cur->x, cur->y, cur->x, cur->y, cur->x2, cur->y2, 2, 0);
++cur;
}
}
void Screen::savePageToDisk(const char *file, int page) {
debugC(9, kDebugLevelScreen, "Screen::savePageToDisk('%s', %d)", file, page);
if (!_saveLoadPage[page/2]) {
_saveLoadPage[page/2] = new uint8[SCREEN_W * SCREEN_H];
assert(_saveLoadPage[page/2]);
}
memcpy(_saveLoadPage[page/2], getPagePtr(page), SCREEN_W * SCREEN_H);
}
void Screen::loadPageFromDisk(const char *file, int page) {
debugC(9, kDebugLevelScreen, "Screen::loadPageFromDisk('%s', %d)", file, page);
copyBlockToPage(page, 0, 0, SCREEN_W, SCREEN_H, _saveLoadPage[page/2]);
clearOverlayRect(page, 0, 0, SCREEN_W, SCREEN_H);
delete [] _saveLoadPage[page/2];
_saveLoadPage[page/2] = 0;
}
void Screen::deletePageFromDisk(int page) {
debugC(9, kDebugLevelScreen, "Screen::deletePageFromDisk(%d)", page);
delete [] _saveLoadPage[page/2];
_saveLoadPage[page/2] = 0;
}
void Screen::blockInRegion(int x, int y, int width, int height) {
debugC(9, kDebugLevelScreen, "Screen::blockInRegion(%d, %d, %d, %d)", x, y, width, height);
assert(_shapePages[0]);
byte *toPtr = _shapePages[0] + (y * 320 + x);
for (int i = 0; i < height; ++i) {
byte *backUpTo = toPtr;
for (int i2 = 0; i2 < width; ++i2) {
*toPtr++ &= 0x7F;
}
toPtr = (backUpTo + 320);
}
}
void Screen::blockOutRegion(int x, int y, int width, int height) {
debugC(9, kDebugLevelScreen, "Screen::blockOutRegion(%d, %d, %d, %d)", x, y, width, height);
assert(_shapePages[0]);
byte *toPtr = _shapePages[0] + (y * 320 + x);
for (int i = 0; i < height; ++i) {
byte *backUpTo = toPtr;
for (int i2 = 0; i2 < width; ++i2) {
*toPtr++ |= 0x80;
}
toPtr = (backUpTo + 320);
}
}
void Screen::rectClip(int &x, int &y, int w, int h) {
if (x < 0) {
x = 0;
} else if (x + w >= 320) {
x = 320 - w;
}
if (y < 0) {
y = 0;
} else if (y + h >= 200) {
y = 200 - h;
}
}
void Screen::backUpRect0(int xpos, int ypos) {
debugC(9, kDebugLevelScreen, "Screen::backUpRect0(%d, %d)", xpos, ypos);
rectClip(xpos, ypos, 3<<3, 24);
copyRegionToBuffer(_curPage, xpos, ypos, 3<<3, 24, _vm->shapes()[0]);
}
void Screen::restoreRect0(int xpos, int ypos) {
debugC(9, kDebugLevelScreen, "Screen::restoreRect0(%d, %d)", xpos, ypos);
rectClip(xpos, ypos, 3<<3, 24);
copyBlockToPage(_curPage, xpos, ypos, 3<<3, 24, _vm->shapes()[0]);
}
void Screen::backUpRect1(int xpos, int ypos) {
debugC(9, kDebugLevelScreen, "Screen::backUpRect1(%d, %d)", xpos, ypos);
rectClip(xpos, ypos, 4<<3, 32);
copyRegionToBuffer(_curPage, xpos, ypos, 4<<3, 32, _vm->shapes()[1]);
}
void Screen::restoreRect1(int xpos, int ypos) {
debugC(9, kDebugLevelScreen, "Screen::restoreRect1(%d, %d)", xpos, ypos);
rectClip(xpos, ypos, 4<<3, 32);
copyBlockToPage(_curPage, xpos, ypos, 4<<3, 32, _vm->shapes()[1]);
}
int Screen::getDrawLayer(int x, int y) {
debugC(9, kDebugLevelScreen, "Screen::getDrawLayer(%d, %d)", x, y);
int xpos = x - 8;
int ypos = y - 1;
int layer = 1;
for (int curX = xpos; curX < xpos + 16; ++curX) {
int tempLayer = getShapeFlag2(curX, ypos);
if (layer < tempLayer) {
layer = tempLayer;
}
if (layer >= 7) {
return 7;
}
}
return layer;
}
int Screen::getDrawLayer2(int x, int y, int height) {
debugC(9, kDebugLevelScreen, "Screen::getDrawLayer2(%d, %d, %d)", x, y, height);
int xpos = x - 8;
int ypos = y - 1;
int layer = 1;
for (int useX = xpos; useX < xpos + 16; ++useX) {
for (int useY = ypos - height; useY < ypos; ++useY) {
int tempLayer = getShapeFlag2(useX, useY);
if (tempLayer > layer) {
layer = tempLayer;
}
if (tempLayer >= 7) {
return 7;
}
}
}
return layer;
}
void Screen::copyBackgroundBlock(int x, int page, int flag) {
debugC(9, kDebugLevelScreen, "Screen::copyBackgroundBlock(%d, %d, %d)", x, page, flag);
if (x < 1)
return;
int height = 128;
if (flag)
height += 8;
if (!(x & 1))
++x;
if (x == 19)
x = 17;
uint8 *ptr1 = _unkPtr1;
uint8 *ptr2 = _unkPtr2;
int oldVideoPage = _curPage;
_curPage = page;
int curX = x;
hideMouse();
copyRegionToBuffer(_curPage, 8, 8, 8, height, ptr2);
for (int i = 0; i < 19; ++i) {
int tempX = curX + 1;
copyRegionToBuffer(_curPage, tempX<<3, 8, 8, height, ptr1);
copyBlockToPage(_curPage, tempX<<3, 8, 8, height, ptr2);
int newXPos = curX + x;
if (newXPos > 37) {
newXPos = newXPos % 38;
}
tempX = newXPos + 1;
copyRegionToBuffer(_curPage, tempX<<3, 8, 8, height, ptr2);
copyBlockToPage(_curPage, tempX<<3, 8, 8, height, ptr1);
curX += x*2;
if (curX > 37) {
curX = curX % 38;
}
}
showMouse();
_curPage = oldVideoPage;
}
void Screen::copyBackgroundBlock2(int x) {
copyBackgroundBlock(x, 4, 1);
}
void Screen::shakeScreen(int times) {
debugC(9, kDebugLevelScreen, "Screen::shakeScreen(%d)", times);
while (times--) {
// seems to be 1 line (320 pixels) offset in the original
// 4 looks more like dosbox though, maybe check this again
_system->setShakePos(4);
_system->updateScreen();
_system->setShakePos(0);
_system->updateScreen();
}
}
void Screen::loadBitmap(const char *filename, int tempPage, int dstPage, uint8 *palData) {
debugC(9, kDebugLevelScreen, "KyraEngine::loadBitmap('%s', %d, %d, %p)", filename, tempPage, dstPage, (void *)palData);
uint32 fileSize;
uint8 *srcData = _vm->resource()->fileData(filename, &fileSize);
if (!srcData) {
warning("couldn't load bitmap: '%s'", filename);
return;
}
uint8 compType = srcData[2];
uint32 imgSize = READ_LE_UINT32(srcData + 4);
uint16 palSize = READ_LE_UINT16(srcData + 8);
if (palData && palSize) {
debugC(9, kDebugLevelMain,"Loading a palette of size %i from %s", palSize, filename);
loadPalette(srcData + 10, palData, palSize);
}
uint8 *srcPtr = srcData + 10 + palSize;
uint8 *dstData = getPagePtr(dstPage);
if (dstPage == 0 || tempPage == 0)
_forceFullUpdate = true;
switch (compType) {
case 0:
memcpy(dstData, srcPtr, imgSize);
break;
case 3:
Screen::decodeFrame3(srcPtr, dstData, imgSize);
break;
case 4:
Screen::decodeFrame4(srcPtr, dstData, imgSize);
break;
default:
error("Unhandled bitmap compression %d", compType);
break;
}
delete [] srcData;
}
void Screen::loadPalette(const char *filename, uint8 *palData) {
debugC(9, kDebugLevelScreen, "Screen::loadPalette('%s' %p)", filename, (void *)palData);
uint32 fileSize = 0;
uint8 *srcData = _vm->resource()->fileData(filename, &fileSize);
if (palData && fileSize) {
debugC(9, kDebugLevelScreen,"Loading a palette of size %i from '%s'", fileSize, filename);
memcpy(palData, srcData, fileSize);
}
delete [] srcData;
}
void Screen::loadPalette(const byte *data, uint8 *palData, int bytes) {
debugC(9, kDebugLevelScreen, "Screen::loadPalette(%p, %p %d)", (void *)data, (void *)palData, bytes);
memcpy(palData, data, bytes);
}
// kyra3 specific
const uint8 *Screen::getPtrToShape(const uint8 *shpFile, int shape) {
debugC(9, kDebugLevelScreen, "KyraEngine::getPtrToShape(%p, %d)", (const void *)shpFile, shape);
uint16 shapes = READ_LE_UINT16(shpFile);
if (shapes <= shape)
return 0;
uint32 offset = READ_LE_UINT32(shpFile + (shape << 2) + 2);
return shpFile + offset + 2;
}
uint8 *Screen::getPtrToShape(uint8 *shpFile, int shape) {
debugC(9, kDebugLevelScreen, "KyraEngine::getPtrToShape(%p, %d)", (void *)shpFile, shape);
uint16 shapes = READ_LE_UINT16(shpFile);
if (shapes <= shape)
return 0;
uint32 offset = READ_LE_UINT32(shpFile + (shape << 2) + 2);
return shpFile + offset + 2;
}
uint16 Screen::getShapeSize(const uint8 *shp) {
debugC(9, kDebugLevelScreen, "KyraEngine::getShapeSize(%p)", (const void *)shp);
return READ_LE_UINT16(shp+6);
}
// dirty rect handling
void Screen::addDirtyRect(int x, int y, int w, int h) {
if (_numDirtyRects == kMaxDirtyRects || _forceFullUpdate) {
_forceFullUpdate = true;
return;
}
if (w == 0 || h == 0 || x >= SCREEN_W || y >= SCREEN_H || x + w < 0 || y + h < 0)
return;
if (x < 0) {
w += x;
x = 0;
}
if (x + w >= 320)
w = 320 - x;
if (y < 0) {
h += y;
y = 0;
}
if (y + h >= 200)
h = 200 - y;
Rect &cur = _dirtyRects[_numDirtyRects++];
cur.x = x;
cur.x2 = w;
cur.y = y;
cur.y2 = h;
}
// overlay functions
byte *Screen::getOverlayPtr(int page) {
if (page == 0 || page == 1)
return _sjisOverlayPtrs[1];
else if (page == 2 || page == 3)
return _sjisOverlayPtrs[2];
else
return 0;
}
void Screen::clearOverlayPage(int page) {
byte *dst = getOverlayPtr(page);
if (!dst)
return;
memset(dst, 0x80, SCREEN_OVL_SJIS_SIZE);
}
void Screen::clearOverlayRect(int page, int x, int y, int w, int h) {
byte *dst = getOverlayPtr(page);
if (!dst || w < 0 || h < 0)
return;
x <<= 1; y <<= 1;
w <<= 1; h <<= 1;
dst += y * 640 + x;
if (w == 640 && h == 400) {
memset(dst, 0x80, SCREEN_OVL_SJIS_SIZE);
} else {
while (h--) {
memset(dst, 0x80, w);
dst += 640;
}
}
}
void Screen::copyOverlayRegion(int x, int y, int x2, int y2, int w, int h, int srcPage, int dstPage) {
byte *dst = getOverlayPtr(dstPage);
const byte *src = getOverlayPtr(srcPage);
if (!dst || !src)
return;
x <<= 1; x2 <<= 1;
y <<= 1; y2 <<= 1;
w <<= 1; h <<= 1;
dst += y2 * 640 + x2;
src += y * 640 + x;
while (h--) {
for (x = 0; x < w; ++x)
memcpy(dst, src, w);
dst += 640;
src += 640;
}
}
// SJIS rendering
namespace {
int SJIStoFMTChunk(int f, int s) { // copied from scumm\charset.cpp
enum {
KANA = 0,
KANJI = 1,
EKANJI = 2
};
int base = s - ((s + 1) % 32);
int c = 0, p = 0, chunk_f = 0, chunk = 0, cr = 0, kanjiType = KANA;
if (f >= 0x81 && f <= 0x84) kanjiType = KANA;
if (f >= 0x88 && f <= 0x9f) kanjiType = KANJI;
if (f >= 0xe0 && f <= 0xea) kanjiType = EKANJI;
if ((f > 0xe8 || (f == 0xe8 && base >= 0x9f)) || (f > 0x90 || (f == 0x90 && base >= 0x9f))) {
c = 48; //correction
p = -8; //correction
}
if (kanjiType == KANA) {//Kana
chunk_f = (f - 0x81) * 2;
} else if (kanjiType == KANJI) {//Standard Kanji
p += f - 0x88;
chunk_f = c + 2 * p;
} else if (kanjiType == EKANJI) {//Enhanced Kanji
p += f - 0xe0;
chunk_f = c + 2 * p;
}
// Base corrections
if (base == 0x7f && s == 0x7f)
base -= 0x20;
if (base == 0x9f && s == 0xbe)
base += 0x20;
if (base == 0xbf && s == 0xde)
base += 0x20;
//if (base == 0x7f && s == 0x9e)
// base += 0x20;
switch (base) {
case 0x3f:
cr = 0; //3f
if (kanjiType == KANA) chunk = 1;
else if (kanjiType == KANJI) chunk = 31;
else if (kanjiType == EKANJI) chunk = 111;
break;
case 0x5f:
cr = 0; //5f
if (kanjiType == KANA) chunk = 17;
else if (kanjiType == KANJI) chunk = 47;
else if (kanjiType == EKANJI) chunk = 127;
break;
case 0x7f:
cr = -1; //80
if (kanjiType == KANA) chunk = 9;
else if (kanjiType == KANJI) chunk = 63;
else if (kanjiType == EKANJI) chunk = 143;
break;
case 0x9f:
cr = 1; //9e
if (kanjiType == KANA) chunk = 2;
else if (kanjiType == KANJI) chunk = 32;
else if (kanjiType == EKANJI) chunk = 112;
break;
case 0xbf:
cr = 1; //be
if (kanjiType == KANA) chunk = 18;
else if (kanjiType == KANJI) chunk = 48;
else if (kanjiType == EKANJI) chunk = 128;
break;
case 0xdf:
cr = 1; //de
if (kanjiType == KANA) chunk = 10;
else if (kanjiType == KANJI) chunk = 64;
else if (kanjiType == EKANJI) chunk = 144;
break;
default:
debug(4, "Invalid Char! f %x s %x base %x c %d p %d", f, s, base, c, p);
return 0;
}
debug(6, "Kanji: %c%c f 0x%x s 0x%x base 0x%x c %d p %d chunk %d cr %d index %d", f, s, f, s, base, c, p, chunk, cr, ((chunk_f + chunk) * 32 + (s - base)) + cr);
return ((chunk_f + chunk) * 32 + (s - base)) + cr;
}
} // end of anonymous namespace
void Screen::drawCharSJIS(uint16 c, int x, int y) {
debugC(9, kDebugLevelScreen, "Screen::drawCharSJIS('%c', %d, %d)", c, x, y);
int color1 = _textColorsMap[1];
int color2 = _textColorsMap[0];
memset(_sjisTempPage2, 0x80, 324);
memset(_sjisSourceChar, 0, 36);
memcpy(_sjisSourceChar, _sjisFontData + 0x20 * SJIStoFMTChunk(c & 0xff, c >> 8), 0x20);
if (_curPage == 0 || _curPage == 1)
addDirtyRect(x, y, SJIS_CHARSIZE >> 1, SJIS_CHARSIZE >> 1);
x <<= 1;
y <<= 1;
uint8 *destPage = getOverlayPtr(_curPage);
if (!destPage) {
warning("trying to draw SJIS char on unsupported page %d", _curPage);
return;
}
destPage += y * 640 + x;
uint8 *src = 0, *dst = 0;
if (color2 != 0x80) {
// draw color2 shadow
src = _sjisSourceChar;
dst = _sjisTempPage2;
for (int i = 0; i < SJIS_CHARSIZE; i++) {
*((uint16*)dst) = READ_LE_UINT16(src);
dst += 2; src += 2;
*dst++ = 0;
}
src = _sjisTempPage2;
dst = _sjisTempPage;
memset(dst, 0, 60);
for (int i = 0; i < 48; i++)
*dst++ |= *src++;
src = _sjisTempPage2;
dst = _sjisTempPage + 3;
for (int i = 0; i < 48; i++)
*dst++ |= *src++;
src = _sjisTempPage2;
dst = _sjisTempPage + 6;
for (int i = 0; i < 48; i++)
*dst++ |= *src++;
for (int i = 0; i < 2; i++) {
src = _sjisTempPage;
for (int ii = 0; ii < SJIS_CHARSIZE; ii++) {
uint8 cy2 = 0;
uint8 cy1 = 0;
for (int iii = 0; iii < 3; iii++) {
cy1 = *src & 1;
*src |= ((*src >> 1) | (cy2 << 7));
cy2 = cy1;
src++;
}
}
}
src = _sjisTempPage2;
for (int i = 0; i < SJIS_CHARSIZE; i++) {
uint8 cy2 = 0;
uint8 cy1 = 0;
for (int ii = 0; ii < 3; ii++) {
cy1 = *src & 1;
*src = ((*src >> 1) | (cy2 << 7));
cy2 = cy1;
src++;
}
}
src = _sjisTempPage2;
dst = _sjisTempPage + 3;
for (int i = 0; i < 48; i++)
*dst++ ^= *src++;
memset(_sjisTempPage2, 0x80, 324);
src = _sjisTempPage;
dst = _sjisTempPage2;
uint8 height = SJIS_CHARSIZE * 3;
uint8 width = SJIS_CHARSIZE;
if (color2 & 0xff00) {
height -= 3;
width--;
dst += 0x13;
}
for (int i = 0; i < height; i++) {
uint8 rs = *src++;
for (int ii = 0; ii < 8; ii++) {
if (rs & 0x80)
*dst = (color2 & 0xff);
rs <<= 1;
dst++;
if (!--width) {
width = SJIS_CHARSIZE;
if (color2 & 0xff00) {
width--;
dst++;
}
break;
}
}
}
}
// draw color1 char
src = _sjisSourceChar;
dst = _sjisTempPage;
for (int i = 0; i < SJIS_CHARSIZE; i++) {
*(uint16*)dst = READ_LE_UINT16(src);
dst += 2; src += 2;
*dst++ = 0;
}
src = _sjisTempPage;
dst = _sjisTempPage2;
if (color2 != 0x80)
color1 = (color1 & 0xff) | 0x100;
uint8 height = SJIS_CHARSIZE * 3;
uint8 width = SJIS_CHARSIZE;
if (color1 & 0xff00) {
height -= 3;
width--;
dst += 0x13;
}
for (int i = 0; i < height; i++) {
uint8 rs = *src++;
for (int ii = 0; ii < 8; ii++) {
if (rs & 0x80)
*dst = (color1 & 0xff);
rs <<= 1;
dst++;
if (!--width) {
width = SJIS_CHARSIZE;
if (color1 & 0xff00) {
width--;
dst++;
}
break;
}
}
}
// copy char to surface
src = _sjisTempPage2;
dst = destPage;
int pitch = 640 - SJIS_CHARSIZE;
for (int i = 0; i < SJIS_CHARSIZE; i++) {
for (int ii = 0; ii < SJIS_CHARSIZE; ii++) {
if (*src != 0x80)
*dst = *src;
src++;
dst++;
}
dst += pitch;
}
}
} // End of namespace Kyra
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