scummvm/engines/drascula/graphics.cpp
Filippos Karapetis 1b233db851 - Removed the AuxBuffOrg and AuxBuffDes buffers
- Renamed loadPCX -> showFrame
- Removed WaitForNext()
- Cleaned up the PCX frame loading code

svn-id: r32615
2008-06-08 14:11:22 +00:00

692 lines
15 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "drascula/drascula.h"
namespace Drascula {
void DrasculaEngine::allocMemory() {
screenSurface = (byte *)malloc(64000);
assert(screenSurface);
frontSurface = (byte *)malloc(64000);
assert(frontSurface);
backSurface = (byte *)malloc(64000);
assert(backSurface);
drawSurface1 = (byte *)malloc(64000);
assert(drawSurface1);
drawSurface2 = (byte *)malloc(64000);
assert(drawSurface2);
drawSurface3 = (byte *)malloc(64000);
assert(drawSurface3);
tableSurface = (byte *)malloc(64000);
assert(tableSurface);
extraSurface = (byte *)malloc(64000);
assert(extraSurface);
}
void DrasculaEngine::freeMemory() {
free(screenSurface);
free(drawSurface1);
free(backSurface);
free(drawSurface2);
free(tableSurface);
free(drawSurface3);
free(extraSurface);
free(frontSurface);
}
void DrasculaEngine::moveCursor() {
copyBackground(0, 0, 0, 0, 320, 200, drawSurface1, screenSurface);
updateRefresh_pre();
moveCharacters();
updateRefresh();
if (!strcmp(textName, "hacker") && hasName == 1) {
if (_color != kColorRed && menuScreen == 0)
color_abc(kColorRed);
} else if (menuScreen == 0 && _color != kColorLightGreen)
color_abc(kColorLightGreen);
if (hasName == 1 && menuScreen == 0)
centerText(textName, mouseX, mouseY);
if (menuScreen == 1)
showMenu();
else if (menuBar == 1)
clearMenu();
int cursorPos[6] = { 0, 0, mouseX - 20, mouseY - 17, OBJWIDTH, OBJHEIGHT };
copyRectClip(cursorPos, drawSurface3, screenSurface);
}
void DrasculaEngine::setCursorTable() {
int cursorPos[6] = { 225, 56, mouseX - 20, mouseY - 12, 40, 25 };
copyRectClip(cursorPos, tableSurface, screenSurface);
}
void DrasculaEngine::loadPic(const char *NamePcc, byte *targetSurface, int colorCount) {
unsigned int con, x = 0;
unsigned int fExit = 0;
byte ch, rep;
_arj.open(NamePcc);
if (!_arj.isOpen())
error("missing game data %s %c", NamePcc, 7);
_arj.seek(128);
while (!fExit) {
ch = _arj.readByte();
rep = 1;
if ((ch & 192) == 192) {
rep = (ch & 63);
ch = _arj.readByte();
}
for (con = 0; con < rep; con++) {
x++;
if (x > 64000) {
fExit = 1;
break;
}
*targetSurface++ = ch;
}
}
_arj.read(cPal, 768);
_arj.close();
setRGB((byte *)cPal, colorCount);
}
void DrasculaEngine::showFrame(bool firstFrame) {
bool stopProcessing = false;
byte pixel;
uint repeat, curByte = 0;
int dataSize = _arj.readSint32LE();
byte *pcxData = (byte *)malloc(dataSize);
_arj.read(pcxData, dataSize);
_arj.read(cPal, 768);
byte *srcPtr = pcxData;
byte *dstPtr = VGA;
byte *prevFrame = (byte *)malloc(64000);
memcpy(prevFrame, VGA, 64000);
while (!stopProcessing) {
pixel = *srcPtr++;
repeat = 1;
if ((pixel & 192) == 192) {
repeat = (pixel & 63);
pixel = *srcPtr++;
}
for (uint j = 0; j < repeat; j++) {
curByte++;
if (curByte > 64000) {
stopProcessing = true;
break;
}
*dstPtr++ = pixel;
}
}
free(pcxData);
if (!firstFrame) {
for (int j = 0; j < 64000; j++)
VGA[j] = prevFrame[j] ^ VGA[j];
}
_system->copyRectToScreen((const byte *)VGA, 320, 0, 0, 320, 200);
_system->updateScreen();
if (firstFrame)
setPalette(cPal);
free(prevFrame);
}
void DrasculaEngine::copyBackground(int xorg, int yorg, int xdes, int ydes, int width,
int height, byte *src, byte *dest) {
dest += xdes + ydes * 320;
src += xorg + yorg * 320;
for (int x = 0; x < height; x++) {
memcpy(dest, src, width);
dest += 320;
src += 320;
}
}
void DrasculaEngine::copyRect(int xorg, int yorg, int xdes, int ydes, int width,
int height, byte *src, byte *dest) {
int y, x;
dest += xdes + ydes * 320;
src += xorg + yorg * 320;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
if (src[x + y * 320] != 255)
dest[x + y * 320] = src[x + y * 320];
}
void DrasculaEngine::copyRectClip(int *Array, byte *src, byte *dest) {
int y, x;
int xorg = Array[0];
int yorg = Array[1];
int xdes = Array[2];
int ydes = Array[3];
int width = Array[4];
int height = Array[5];
if (ydes < 0) {
yorg += -ydes;
height += ydes;
ydes = 0;
}
if (xdes < 0) {
xorg += -xdes;
width += xdes;
xdes = 0;
}
if ((xdes + width) > 319)
width -= (xdes + width) - 320;
if ((ydes + height) > 199)
height -= (ydes + height) - 200;
dest += xdes + ydes * 320;
src += xorg + yorg * 320;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
if (src[x + y * 320] != 255)
dest[x + y * 320] = src[x + y * 320];
}
void DrasculaEngine::updateScreen(int xorg, int yorg, int xdes, int ydes, int width, int height, byte *buffer) {
byte *ptr = VGA;
ptr += xdes + ydes * 320;
buffer += xorg + yorg * 320;
for (int x = 0; x < height; x++) {
memcpy(ptr, buffer, width);
ptr += 320;
buffer += 320;
}
_system->copyRectToScreen((const byte *)VGA, 320, 0, 0, 320, 200);
_system->updateScreen();
}
void DrasculaEngine::print_abc(const char *said, int screenX, int screenY) {
int letterY = 0, letterX = 0, i;
uint len = strlen(said);
byte c;
for (uint h = 0; h < len; h++) {
c = toupper(said[h]);
for (i = 0; i < _charMapSize; i++) {
if (c == _charMap[i].inChar) {
letterX = _charMap[i].mappedChar;
switch (_charMap[i].charType) {
case 0: // letters
letterY = (_lang == kSpanish) ? 149 : 158;
break;
case 1: // signs
letterY = (_lang == kSpanish) ? 160 : 169;
break;
case 2: // accented
letterY = 180;
break;
} // switch
break;
} // if
} // for
int textPos[6] = { letterX, letterY, screenX, screenY, CHAR_WIDTH, CHAR_HEIGHT };
copyRectClip(textPos, textSurface, screenSurface);
screenX = screenX + CHAR_WIDTH;
if (screenX > 317) {
screenX = 0;
screenY = screenY + CHAR_HEIGHT + 2;
}
} // for
}
void DrasculaEngine::print_abc_opc(const char *said, int screenX, int screenY, int game) {
int signY, letterY, letterX = 0;
uint len = strlen(said);
for (uint h = 0; h < len; h++) {
if (game == 1) {
letterY = 6;
signY = 15;
} else if (game == 3) {
letterY = 56;
signY = 65;
} else {
letterY = 31;
signY = 40;
}
int c = toupper(said[h]);
// WORKAROUND: Even original did not process it correctly
// Fixes apostrophe rendering
if (_lang != kSpanish)
if (c == '\'')
c = '\244';
for (int i = 0; i < _charMapSize; i++) {
if (c == _charMap[i].inChar) {
// Convert the mapped char of the normal font to the
// mapped char of the dialogue font
int multiplier = (_charMap[i].mappedChar - 6) / 9;
letterX = multiplier * 7 + 10;
if (_charMap[i].charType > 0)
letterY = signY;
break;
} // if
} // for
int textPos[6] = { letterX, letterY, screenX, screenY, CHAR_WIDTH_OPC, CHAR_HEIGHT_OPC };
copyRectClip(textPos, backSurface, screenSurface);
screenX = screenX + CHAR_WIDTH_OPC;
}
}
void DrasculaEngine::centerText(const char *message, int textX, int textY) {
char bb[200], m2[200], m1[200], mb[10][50];
char m3[200];
int h, fil, textX3, textX2, textX1, conta_f = 0, ya = 0;
strcpy(m1, " ");
strcpy(m2, " ");
strcpy(m3, " ");
strcpy(bb, " ");
for (h = 0; h < 10; h++)
strcpy(mb[h], " ");
if (textX > 160)
ya = 1;
strcpy(m1, message);
textX = CLIP<int>(textX, 60, 255);
textX1 = textX;
if (ya == 1)
textX1 = 315 - textX;
textX2 = (strlen(m1) / 2) * CHAR_WIDTH;
while (true) {
strcpy(bb, m1);
scumm_strrev(bb);
if (textX1 < textX2) {
strcpy(m3, strrchr(m1, ' '));
strcpy(m1, strstr(bb, " "));
scumm_strrev(m1);
m1[strlen(m1) - 1] = '\0';
strcat(m3, m2);
strcpy(m2, m3);
};
textX2 = (strlen(m1) / 2) * CHAR_WIDTH;
if (textX1 < textX2)
continue;
strcpy(mb[conta_f], m1);
if (!strcmp(m2, ""))
break;
scumm_strrev(m2);
m2[strlen(m2) - 1] = '\0';
scumm_strrev(m2);
strcpy(m1, m2);
strcpy(m2, "");
conta_f++;
}
fil = textY - (((conta_f + 3) * CHAR_HEIGHT));
for (h = 0; h < conta_f + 1; h++) {
textX3 = strlen(mb[h]) / 2;
print_abc(mb[h], ((textX) - textX3 * CHAR_WIDTH) - 1, fil);
fil = fil + CHAR_HEIGHT + 2;
}
}
void DrasculaEngine::screenSaver() {
int xr, yr;
byte *copia, *ghost;
float coeff = 0, coeff2 = 0;
int count = 0;
int count2 = 0;
int tempLine[320];
int tempRow[200];
clearRoom();
loadPic("sv.alg", drawSurface1, HALF_PAL);
// inicio_ghost();
copia = (byte *)malloc(64000);
ghost = (byte *)malloc(65536);
// carga_ghost();
_arj.open("ghost.drv");
if (!_arj.isOpen())
error("Cannot open file ghost.drv");
_arj.read(ghost, 65536);
_arj.close();
updateEvents();
xr = mouseX;
yr = mouseY;
for (;;) {
// efecto(drawSurface1);
memcpy(copia, drawSurface1, 64000);
coeff += 0.1f;
coeff2 = coeff;
if (++count > 319)
count = 0;
for (int i = 0; i < 320; i++) {
tempLine[i] = (int)(sin(coeff2) * 16);
coeff2 += 0.02f;
tempLine[i] = checkWrapY(tempLine[i]);
}
coeff2 = coeff;
for (int i = 0; i < 200; i++) {
tempRow[i] = (int)(sin(coeff2) * 16);
coeff2 += 0.02f;
tempRow[i] = checkWrapX(tempRow[i]);
}
if (++count2 > 199)
count2 = 0;
int x1_, y1_, off1, off2;
for (int i = 0; i < 200; i++) {
for (int j = 0; j < 320; j++) {
x1_ = j + tempRow[i];
x1_ = checkWrapX(x1_);
y1_ = i + count2;
y1_ = checkWrapY(y1_);
off1 = 320 * y1_ + x1_;
x1_ = j + count;
x1_ = checkWrapX(x1_);
y1_ = i + tempLine[j];
y1_ = checkWrapY(y1_);
off2 = 320 * y1_ + x1_;
VGA[320 * i + j] = ghost[drawSurface1[off2] + (copia[off1] << 8)];
}
}
_system->copyRectToScreen((const byte *)VGA, 320, 0, 0, 320, 200);
_system->updateScreen();
_system->delayMillis(20);
// end of efecto()
updateEvents();
if (rightMouseButton == 1 || leftMouseButton == 1)
break;
if (mouseX != xr)
break;
if (mouseY != yr)
break;
}
// fin_ghost();
free(copia);
free(ghost);
loadPic(roomNumber, drawSurface1, HALF_PAL);
}
void DrasculaEngine::playFLI(const char *filefli, int vel) {
// Open file
MiVideoSSN = (byte *)malloc(64256);
globalSpeed = 1000 / vel;
FrameSSN = 0;
UsingMem = 0;
if (MiVideoSSN == NULL)
return;
_arj.open(filefli);
mSession = TryInMem();
LastFrame = _system->getMillis();
while (playFrameSSN() && (!term_int)) {
if (getScan() == Common::KEYCODE_ESCAPE)
term_int = 1;
}
free(MiVideoSSN);
if (UsingMem)
free(pointer);
else
_arj.close();
}
int DrasculaEngine::playFrameSSN() {
int Exit = 0;
uint32 Lengt;
byte *BufferSSN;
if (!UsingMem)
_arj.read(&CHUNK, 1);
else {
memcpy(&CHUNK, mSession, 1);
mSession += 1;
}
switch (CHUNK) {
case kFrameSetPal:
if (!UsingMem)
_arj.read(dacSSN, 768);
else {
memcpy(dacSSN, mSession, 768);
mSession += 768;
}
setPalette(dacSSN);
break;
case kFrameEmptyFrame:
WaitFrameSSN();
break;
case kFrameInit:
if (!UsingMem) {
CMP = _arj.readByte();
Lengt = _arj.readUint32LE();
} else {
memcpy(&CMP, mSession, 1);
mSession += 1;
Lengt = READ_LE_UINT32(mSession);
mSession += 4;
}
if (CMP == kFrameCmpRle) {
BufferSSN = (byte *)malloc(Lengt);
if (!UsingMem) {
_arj.read(BufferSSN, Lengt);
} else {
memcpy(BufferSSN, mSession, Lengt);
mSession += Lengt;
}
Des_RLE(BufferSSN, MiVideoSSN);
free(BufferSSN);
WaitFrameSSN();
if (FrameSSN)
MixVideo(VGA, MiVideoSSN);
else
memcpy(VGA, MiVideoSSN, 64000);
_system->copyRectToScreen((const byte *)VGA, 320, 0, 0, 320, 200);
_system->updateScreen();
FrameSSN++;
} else {
if (CMP == kFrameCmpOff) {
BufferSSN = (byte *)malloc(Lengt);
if (!UsingMem) {
_arj.read(BufferSSN, Lengt);
} else {
memcpy(BufferSSN, mSession, Lengt);
mSession += Lengt;
}
Des_OFF(BufferSSN, MiVideoSSN, Lengt);
free(BufferSSN);
WaitFrameSSN();
if (FrameSSN)
MixVideo(VGA, MiVideoSSN);
else
memcpy(VGA, MiVideoSSN, 64000);
_system->copyRectToScreen((const byte *)VGA, 320, 0, 0, 320, 200);
_system->updateScreen();
FrameSSN++;
}
}
break;
case kFrameEndAnim:
Exit = 1;
break;
default:
Exit = 1;
break;
}
return (!Exit);
}
byte *DrasculaEngine::TryInMem() {
int Lengt;
_arj.seek(0, SEEK_END);
Lengt = _arj.pos();
_arj.seek(0, SEEK_SET);
pointer = (byte *)malloc(Lengt);
if (pointer == NULL)
return NULL;
_arj.read(pointer, Lengt);
UsingMem = 1;
_arj.close();
return pointer;
}
void DrasculaEngine::Des_OFF(byte *BufferOFF, byte *MiVideoOFF, int Lenght) {
int x = 0;
unsigned char Reps;
int Offset;
memset(MiVideoSSN, 0, 64000);
while (x < Lenght) {
Offset = BufferOFF[x] + BufferOFF[x + 1] * 256;
Reps = BufferOFF[x + 2];
memcpy(MiVideoOFF + Offset, &BufferOFF[x + 3], Reps);
x += 3 + Reps;
}
}
void DrasculaEngine::Des_RLE(byte *BufferRLE, byte *MiVideoRLE) {
signed int con = 0;
unsigned int X = 0;
unsigned int fExit = 0;
char ch, rep;
while (!fExit) {
ch = *BufferRLE++;
rep = 1;
if ((ch & 192) == 192) {
rep = (ch & 63);
ch =* BufferRLE++;
}
for (con = 0; con < rep; con++) {
*MiVideoRLE++ = ch;
X++;
if (X > 64000)
fExit = 1;
}
}
}
void DrasculaEngine::MixVideo(byte *OldScreen, byte *NewScreen) {
for (int x = 0; x < 64000; x++)
OldScreen[x] ^= NewScreen[x];
}
void DrasculaEngine::WaitFrameSSN() {
uint32 now;
while ((now = _system->getMillis()) - LastFrame < ((uint32) globalSpeed))
_system->delayMillis(globalSpeed - (now - LastFrame));
LastFrame = LastFrame + globalSpeed;
}
bool DrasculaEngine::animate(const char *animationFile, int FPS) {
int NFrames = 1;
int cnt = 2;
_arj.open(animationFile);
if (!_arj.isOpen()) {
error("Animation file %s not found", animationFile);
}
NFrames = _arj.readSint32LE();
showFrame(true);
_system->delayMillis(1000 / FPS);
while (cnt < NFrames) {
showFrame();
_system->delayMillis(1000 / FPS);
cnt++;
byte key = getScan();
if (key == Common::KEYCODE_ESCAPE)
term_int = 1;
if (key != 0)
break;
}
_arj.close();
return ((term_int == 1) || (getScan() == Common::KEYCODE_ESCAPE));
}
} // End of namespace Drascula