mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-21 01:08:25 +00:00
865 lines
18 KiB
C++
865 lines
18 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 "common/stdafx.h"
|
|
|
|
#include "agi/agi.h"
|
|
#include "agi/graphics.h"
|
|
|
|
|
|
namespace Agi {
|
|
|
|
PictureMgr::PictureMgr(AgiBase *agi, GfxMgr *gfx) {
|
|
_vm = agi;
|
|
_gfx = gfx;
|
|
|
|
_data = NULL;
|
|
_flen = _foffs = 0;
|
|
|
|
_patCode = _patNum = _priOn = _scrOn = _scrColor = _priColor = 0;
|
|
_xOffset = _yOffset = 0;
|
|
|
|
_pictureType = AGIPIC_V2;
|
|
_minCommand = 0xf0;
|
|
_flags = 0;
|
|
}
|
|
|
|
void PictureMgr::putVirtPixel(int x, int y) {
|
|
uint8 *p;
|
|
|
|
x += _xOffset;
|
|
y += _yOffset;
|
|
|
|
if (x < 0 || y < 0 || x >= _width || y >= _height)
|
|
return;
|
|
|
|
p = &_vm->_game.sbuf16c[y * _width + x];
|
|
|
|
if (_priOn)
|
|
*p = (_priColor << 4) | (*p & 0x0f);
|
|
if (_scrOn)
|
|
*p = _scrColor | (*p & 0xf0);
|
|
}
|
|
|
|
/* For the flood fill routines */
|
|
|
|
/* MH2 needs stack size > 300 */
|
|
#define STACK_SIZE 512
|
|
static unsigned int stackPtr;
|
|
static uint16 stack[STACK_SIZE];
|
|
|
|
static INLINE void lpush(uint16 c) {
|
|
assert(stackPtr < STACK_SIZE);
|
|
|
|
stack[stackPtr] = c;
|
|
stackPtr++;
|
|
}
|
|
|
|
static INLINE uint16 lpop() {
|
|
if (stackPtr == 0)
|
|
return 0xffff;
|
|
|
|
stackPtr--;
|
|
return stack[stackPtr];
|
|
}
|
|
|
|
/**
|
|
* Draw an AGI line.
|
|
* A line drawing routine sent by Joshua Neal, modified by Stuart George
|
|
* (fixed >>2 to >>1 and some other bugs like x1 instead of y1, etc.)
|
|
* @param x1 x coordinate of start point
|
|
* @param y1 y coordinate of start point
|
|
* @param x2 x coordinate of end point
|
|
* @param y2 y coordinate of end point
|
|
*/
|
|
void PictureMgr::drawLine(int x1, int y1, int x2, int y2) {
|
|
int i, x, y, deltaX, deltaY, stepX, stepY, errorX, errorY, detdelta;
|
|
|
|
/* CM: Do clipping */
|
|
#define clip(x, y) if((x)>=(y)) (x)=(y)
|
|
clip(x1, _width - 1);
|
|
clip(x2, _width - 1);
|
|
clip(y1, _height - 1);
|
|
clip(y2, _height - 1);
|
|
|
|
/* Vertical line */
|
|
|
|
if (x1 == x2) {
|
|
if (y1 > y2) {
|
|
y = y1;
|
|
y1 = y2;
|
|
y2 = y;
|
|
}
|
|
|
|
for (; y1 <= y2; y1++)
|
|
putVirtPixel(x1, y1);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Horizontal line */
|
|
|
|
if (y1 == y2) {
|
|
if (x1 > x2) {
|
|
x = x1;
|
|
x1 = x2;
|
|
x2 = x;
|
|
}
|
|
for (; x1 <= x2; x1++)
|
|
putVirtPixel(x1, y1);
|
|
return;
|
|
}
|
|
|
|
y = y1;
|
|
x = x1;
|
|
|
|
stepY = 1;
|
|
deltaY = y2 - y1;
|
|
if (deltaY < 0) {
|
|
stepY = -1;
|
|
deltaY = -deltaY;
|
|
}
|
|
|
|
stepX = 1;
|
|
deltaX = x2 - x1;
|
|
if (deltaX < 0) {
|
|
stepX = -1;
|
|
deltaX = -deltaX;
|
|
}
|
|
|
|
if (deltaY > deltaX) {
|
|
i = deltaY;
|
|
detdelta = deltaY;
|
|
errorX = deltaY / 2;
|
|
errorY = 0;
|
|
} else {
|
|
i = deltaX;
|
|
detdelta = deltaX;
|
|
errorX = 0;
|
|
errorY = deltaX / 2;
|
|
}
|
|
|
|
putVirtPixel(x, y);
|
|
|
|
do {
|
|
errorY += deltaY;
|
|
if (errorY >= detdelta) {
|
|
errorY -= detdelta;
|
|
y += stepY;
|
|
}
|
|
|
|
errorX += deltaX;
|
|
if (errorX >= detdelta) {
|
|
errorX -= detdelta;
|
|
x += stepX;
|
|
}
|
|
|
|
putVirtPixel(x, y);
|
|
i--;
|
|
} while (i > 0);
|
|
}
|
|
|
|
/**
|
|
* Draw a relative AGI line.
|
|
* Draws short lines relative to last position. (drawing action 0xF7)
|
|
*/
|
|
void PictureMgr::dynamicDrawLine() {
|
|
int x1, y1, disp, dx, dy;
|
|
|
|
x1 = nextByte();
|
|
y1 = nextByte();
|
|
|
|
putVirtPixel(x1, y1);
|
|
|
|
for (;;) {
|
|
if ((disp = nextByte()) >= _minCommand)
|
|
break;
|
|
|
|
dx = ((disp & 0xf0) >> 4) & 0x0f;
|
|
dy = (disp & 0x0f);
|
|
|
|
if (dx & 0x08)
|
|
dx = -(dx & 0x07);
|
|
if (dy & 0x08)
|
|
dy = -(dy & 0x07);
|
|
|
|
drawLine(x1, y1, x1 + dx, y1 + dy);
|
|
x1 += dx;
|
|
y1 += dy;
|
|
}
|
|
_foffs--;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** absoluteLine
|
|
**
|
|
** Draws long lines to actual locations (cf. relative) (drawing action 0xF6)
|
|
**************************************************************************/
|
|
void PictureMgr::absoluteDrawLine() {
|
|
int x1, y1, x2, y2;
|
|
|
|
x1 = nextByte();
|
|
y1 = nextByte();
|
|
putVirtPixel(x1, y1);
|
|
|
|
for (;;) {
|
|
if ((x2 = nextByte()) >= _minCommand)
|
|
break;
|
|
|
|
if ((y2 = nextByte()) >= _minCommand)
|
|
break;
|
|
|
|
drawLine(x1, y1, x2, y2);
|
|
x1 = x2;
|
|
y1 = y2;
|
|
}
|
|
_foffs--;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** okToFill
|
|
**************************************************************************/
|
|
INLINE int PictureMgr::isOkFillHere(int x, int y) {
|
|
uint8 p;
|
|
|
|
if (x < 0 || x >= _width || y < 0 || y >= _height)
|
|
return false;
|
|
|
|
if (!_scrOn && !_priOn)
|
|
return false;
|
|
|
|
p = _vm->_game.sbuf16c[y * _width + x];
|
|
|
|
if (!_priOn && _scrOn && _scrColor != 15)
|
|
return (p & 0x0f) == 15;
|
|
|
|
if (_priOn && !_scrOn && _priColor != 4)
|
|
return (p >> 4) == 4;
|
|
|
|
return (_scrOn && (p & 0x0f) == 15 && _scrColor != 15);
|
|
}
|
|
|
|
/**************************************************************************
|
|
** agi_fill
|
|
**************************************************************************/
|
|
void PictureMgr::fillScanline(int x, int y) {
|
|
unsigned int c;
|
|
int newspanUp, newspanDown;
|
|
|
|
if (!isOkFillHere(x, y))
|
|
return;
|
|
|
|
/* Scan for left border */
|
|
for (c = x - 1; isOkFillHere(c, y); c--);
|
|
|
|
newspanUp = newspanDown = 1;
|
|
for (c++; isOkFillHere(c, y); c++) {
|
|
putVirtPixel(c, y);
|
|
if (isOkFillHere(c, y - 1)) {
|
|
if (newspanUp) {
|
|
lpush(c + 320 * (y - 1));
|
|
newspanUp = 0;
|
|
}
|
|
} else {
|
|
newspanUp = 1;
|
|
}
|
|
|
|
if (isOkFillHere(c, y + 1)) {
|
|
if (newspanDown) {
|
|
lpush(c + 320 * (y + 1));
|
|
newspanDown = 0;
|
|
}
|
|
} else {
|
|
newspanDown = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
void PictureMgr::agiFill(unsigned int x, unsigned int y) {
|
|
lpush(x + 320 * y);
|
|
|
|
for (;;) {
|
|
uint16 c = lpop();
|
|
|
|
/* Exit if stack is empty */
|
|
if (c == 0xffff)
|
|
break;
|
|
|
|
x = c % 320;
|
|
y = c / 320;
|
|
|
|
fillScanline(x, y);
|
|
}
|
|
|
|
stackPtr = 0;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** xCorner
|
|
**
|
|
** Draws an xCorner (drawing action 0xF5)
|
|
**************************************************************************/
|
|
void PictureMgr::xCorner() {
|
|
int x1, x2, y1, y2;
|
|
|
|
x1 = nextByte();
|
|
y1 = nextByte();
|
|
putVirtPixel(x1, y1);
|
|
|
|
for (;;) {
|
|
x2 = nextByte();
|
|
|
|
if (x2 >= _minCommand)
|
|
break;
|
|
|
|
drawLine(x1, y1, x2, y1);
|
|
x1 = x2;
|
|
y2 = nextByte();
|
|
|
|
if (y2 >= _minCommand)
|
|
break;
|
|
|
|
drawLine(x1, y1, x1, y2);
|
|
y1 = y2;
|
|
}
|
|
_foffs--;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** yCorner
|
|
**
|
|
** Draws an yCorner (drawing action 0xF4)
|
|
**************************************************************************/
|
|
void PictureMgr::yCorner() {
|
|
int x1, x2, y1, y2;
|
|
|
|
x1 = nextByte();
|
|
y1 = nextByte();
|
|
putVirtPixel(x1, y1);
|
|
|
|
for (;;) {
|
|
y2 = nextByte();
|
|
|
|
if (y2 >= _minCommand)
|
|
break;
|
|
|
|
drawLine(x1, y1, x1, y2);
|
|
y1 = y2;
|
|
x2 = nextByte();
|
|
|
|
if (x2 >= _minCommand)
|
|
break;
|
|
|
|
drawLine(x1, y1, x2, y1);
|
|
x1 = x2;
|
|
}
|
|
|
|
_foffs--;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** fill
|
|
**
|
|
** AGI flood fill. (drawing action 0xF8)
|
|
**************************************************************************/
|
|
void PictureMgr::fill() {
|
|
int x1, y1;
|
|
|
|
while ((x1 = nextByte()) < _minCommand && (y1 = nextByte()) < _minCommand)
|
|
agiFill(x1, y1);
|
|
|
|
_foffs--;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** plotPattern
|
|
**
|
|
** Draws pixels, circles, squares, or splatter brush patterns depending
|
|
** on the pattern code.
|
|
**************************************************************************/
|
|
|
|
void PictureMgr::plotPattern(int x, int y) {
|
|
static uint16 binary_list[] = {0x8000, 0x4000, 0x2000, 0x1000, 0x800, 0x400, 0x200, 0x100,
|
|
0x80, 0x40, 0x20, 0x10, 0x8, 0x4, 0x2, 0x1};
|
|
|
|
static uint8 circle_list[] = {0, 1, 4, 9, 16, 25, 37, 50};
|
|
|
|
static uint16 circle_data[] =
|
|
{0x8000,
|
|
0xE000, 0xE000, 0xE000,
|
|
0x7000, 0xF800, 0x0F800, 0x0F800, 0x7000,
|
|
0x3800, 0x7C00, 0x0FE00, 0x0FE00, 0x0FE00, 0x7C00, 0x3800,
|
|
0x1C00, 0x7F00, 0x0FF80, 0x0FF80, 0x0FF80, 0x0FF80, 0x0FF80, 0x7F00, 0x1C00,
|
|
0x0E00, 0x3F80, 0x7FC0, 0x7FC0, 0x0FFE0, 0x0FFE0, 0x0FFE0, 0x7FC0, 0x7FC0, 0x3F80, 0x1F00, 0x0E00,
|
|
0x0F80, 0x3FE0, 0x7FF0, 0x7FF0, 0x0FFF8, 0x0FFF8, 0x0FFF8, 0x0FFF8, 0x0FFF8, 0x7FF0, 0x7FF0, 0x3FE0, 0x0F80,
|
|
0x07C0, 0x1FF0, 0x3FF8, 0x7FFC, 0x7FFC, 0x0FFFE, 0x0FFFE, 0x0FFFE, 0x0FFFE, 0x0FFFE, 0x7FFC, 0x7FFC, 0x3FF8, 0x1FF0, 0x07C0};
|
|
|
|
uint16 circle_word;
|
|
uint16 *circle_ptr;
|
|
uint16 counter;
|
|
uint16 pen_width = 0;
|
|
int pen_final_x = 0;
|
|
int pen_final_y = 0;
|
|
|
|
uint8 t = 0;
|
|
uint8 temp8;
|
|
uint16 temp16;
|
|
|
|
int pen_x = x;
|
|
int pen_y = y;
|
|
uint16 texture_num = 0;
|
|
uint16 pen_size = (_patCode & 0x07);
|
|
|
|
circle_ptr = &circle_data[circle_list[pen_size]];
|
|
|
|
// setup the X position
|
|
// = pen_x - pen.size/2
|
|
|
|
pen_x = (pen_x * 2) - pen_size;
|
|
if (pen_x < 0) pen_x = 0;
|
|
|
|
temp16 = 320 - (2 * pen_size);
|
|
if (pen_x >= temp16)
|
|
pen_x = temp16;
|
|
|
|
pen_x /= 2;
|
|
pen_final_x = pen_x; // original starting point?? -> used in plotrelated
|
|
|
|
// Setup the Y Position
|
|
// = pen_y - pen.size
|
|
pen_y = pen_y - pen_size;
|
|
if (pen_y < 0) pen_y = 0;
|
|
|
|
temp16 = 167 - (2 * pen_size);
|
|
if (pen_y >= temp16)
|
|
pen_y = temp16;
|
|
|
|
pen_final_y = pen_y; // used in plotrelated
|
|
|
|
t = (uint8)(texture_num | 0x01); // even
|
|
|
|
// new purpose for temp16
|
|
|
|
temp16 =( pen_size<<1) +1; // pen size
|
|
pen_final_y += temp16; // the last row of this shape
|
|
temp16 = temp16 << 1;
|
|
pen_width = temp16; // width of shape?
|
|
|
|
bool circleCond;
|
|
int counterStep;
|
|
int ditherCond;
|
|
|
|
if (_flags == kPicFCircle)
|
|
_patCode |= 0x10;
|
|
|
|
if (_vm->getGameType() == GType_PreAGI) {
|
|
circleCond = ((_patCode & 0x10) == 0);
|
|
counterStep = 3;
|
|
ditherCond = 0x03;
|
|
} else {
|
|
circleCond = ((_patCode & 0x10) != 0);
|
|
counterStep = 4;
|
|
ditherCond = 0x02;
|
|
}
|
|
|
|
for (; pen_y < pen_final_y; pen_y++) {
|
|
circle_word = *circle_ptr++;
|
|
|
|
for (counter = 0; counter <= pen_width; counter += counterStep) {
|
|
if (circleCond || ((binary_list[counter>>1] & circle_word) != 0)) {
|
|
temp8 = t % 2;
|
|
t = t >> 1;
|
|
if (temp8 != 0)
|
|
t = t ^ 0xB8;
|
|
|
|
// == box plot, != circle plot
|
|
if ((_patCode & 0x20) == 0 || (t & 0x03) == ditherCond)
|
|
putVirtPixel(pen_x, pen_y);
|
|
}
|
|
pen_x++;
|
|
}
|
|
|
|
pen_x = pen_final_x;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** plotBrush
|
|
**
|
|
** Plots points and various brush patterns.
|
|
**************************************************************************/
|
|
void PictureMgr::plotBrush() {
|
|
int x1, y1;
|
|
|
|
for (;;) {
|
|
if (_patCode & 0x20) {
|
|
if ((_patNum = nextByte()) >= _minCommand)
|
|
break;
|
|
_patNum = (_patNum >> 1) & 0x7f;
|
|
}
|
|
|
|
if ((x1 = nextByte()) >= _minCommand)
|
|
break;
|
|
|
|
if ((y1 = nextByte()) >= _minCommand)
|
|
break;
|
|
|
|
plotPattern(x1, y1);
|
|
}
|
|
|
|
_foffs--;
|
|
}
|
|
|
|
/**************************************************************************
|
|
** Draw AGI picture
|
|
**************************************************************************/
|
|
|
|
void PictureMgr::drawPicture() {
|
|
uint8 act;
|
|
int drawing;
|
|
int storedXOffset = 0, storedYOffset = 0;
|
|
|
|
_patCode = 0;
|
|
_patNum = 0;
|
|
_priOn = _scrOn = false;
|
|
_scrColor = 0xf;
|
|
_priColor = 0x4;
|
|
|
|
drawing = 1;
|
|
|
|
debugC(8, kDebugLevelMain, "Drawing v2 picture");
|
|
for (drawing = 1; drawing && _foffs < _flen;) {
|
|
act = nextByte();
|
|
|
|
if (_pictureType == AGIPIC_C64 && act >= 0xf0 && act <= 0xfe) {
|
|
_scrColor = act - 0xf0;
|
|
continue;
|
|
}
|
|
|
|
switch (act) {
|
|
case 0xe0: // x-corner (C64)
|
|
xCorner();
|
|
break;
|
|
case 0xe1: // y-corner (C64)
|
|
yCorner();
|
|
break;
|
|
case 0xe2: // dynamic draw lines (C64)
|
|
dynamicDrawLine();
|
|
break;
|
|
case 0xe3: // absolute draw lines (C64)
|
|
absoluteDrawLine();
|
|
break;
|
|
case 0xe4: // fill (C64)
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF; /* for v3 drawing diff */
|
|
fill();
|
|
break;
|
|
case 0xe5: // enable screen drawing (C64)
|
|
_scrOn = true;
|
|
break;
|
|
case 0xe6: // plot brush (C64)
|
|
_patCode = nextByte();
|
|
plotBrush();
|
|
break;
|
|
case 0xf0: // set colour on screen (AGI pic v2)
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF; // for v3 drawing diff
|
|
_scrOn = true;
|
|
break;
|
|
case 0xf1:
|
|
if (_pictureType == AGIPIC_V1) {
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF; // for v3 drawing diff
|
|
_scrOn = true;
|
|
_priOn = false;
|
|
} else if (_pictureType == AGIPIC_V15) { // set colour on screen
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF;
|
|
} else if (_pictureType == AGIPIC_V2) { // disable screen drawing
|
|
_scrOn = false;
|
|
}
|
|
break;
|
|
case 0xf2: // set colour on priority (AGI pic v2)
|
|
_priColor = nextByte();
|
|
_priColor &= 0xf; // for v3 drawing diff
|
|
_priOn = true;
|
|
break;
|
|
case 0xf3:
|
|
if (_pictureType == AGIPIC_V1) {
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF; // for v3 drawing diff
|
|
_scrOn = true;
|
|
_priColor = nextByte();
|
|
_priColor &= 0xf; // for v3 drawing diff
|
|
_priOn = true;
|
|
}
|
|
|
|
// Empty in AGI pic V1.5
|
|
|
|
if (_pictureType == AGIPIC_V2) // disable priority screen
|
|
_priOn = false;
|
|
break;
|
|
case 0xf4: // y-corner
|
|
yCorner();
|
|
break;
|
|
case 0xf5: // x-corner
|
|
xCorner();
|
|
break;
|
|
case 0xf6: // absolute draw lines
|
|
absoluteDrawLine();
|
|
break;
|
|
case 0xf7: // dynamic draw lines
|
|
dynamicDrawLine();
|
|
break;
|
|
case 0xf8: // fill
|
|
if (_pictureType == AGIPIC_V15) {
|
|
absoluteDrawLine();
|
|
} else if (_pictureType == AGIPIC_V2) {
|
|
fill();
|
|
}
|
|
break;
|
|
case 0xf9: // set pattern
|
|
if (_pictureType == AGIPIC_V15) {
|
|
absoluteDrawLine();
|
|
} else if (_pictureType == AGIPIC_V2) {
|
|
_patCode = nextByte();
|
|
|
|
if (_vm->getGameType() == GType_PreAGI)
|
|
plotBrush();
|
|
}
|
|
break;
|
|
case 0xfa: // plot brush
|
|
if (_pictureType == AGIPIC_V1) {
|
|
_scrOn = false;
|
|
_priOn = true;
|
|
absoluteDrawLine();
|
|
_scrOn = true;
|
|
_priOn = false;
|
|
} else if (_pictureType == AGIPIC_V15) {
|
|
absoluteDrawLine();
|
|
} else if (_pictureType == AGIPIC_V2) {
|
|
plotBrush();
|
|
}
|
|
break;
|
|
case 0xfb:
|
|
if (_pictureType == AGIPIC_V1) {
|
|
dynamicDrawLine();
|
|
} else if (_pictureType == AGIPIC_V15) {
|
|
absoluteDrawLine();
|
|
}
|
|
break;
|
|
case 0xfc: // fill (AGI pic v1)
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF;
|
|
_priColor = nextByte();
|
|
_priColor &= 0xf;
|
|
fill();
|
|
break;
|
|
case 0xfe: // fill (AGI pic v1.5)
|
|
_scrColor = nextByte();
|
|
_scrColor &= 0xF;
|
|
_scrOn = true;
|
|
fill();
|
|
break;
|
|
case 0xff: // end of pic data
|
|
drawing = 0;
|
|
break;
|
|
default:
|
|
warning("Unknown v2 picture opcode (%x)", act);
|
|
}
|
|
if (_flags == kPicFStep && _vm->getGameType() == GType_PreAGI) {
|
|
// FIXME: This is used by Mickey for the crystal animation, but
|
|
// currently it's very very very slow
|
|
/*
|
|
storedXOffset = _xOffset;
|
|
storedYOffset = _yOffset;
|
|
// FIXME: picture coordinates are correct for Mickey only
|
|
showPic(10, 0, _width, _height);
|
|
_gfx->doUpdate();
|
|
g_system->updateScreen();
|
|
_xOffset = storedXOffset;
|
|
_yOffset = storedYOffset;
|
|
g_system->delayMillis(25);
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* convert AGI v3 format picture to AGI v2 format
|
|
*/
|
|
uint8 *PictureMgr::convertV3Pic(uint8 *src, uint32 len) {
|
|
uint8 d, old = 0, x, *in, *xdata, *out, mode = 0;
|
|
uint32 i, ulen;
|
|
|
|
xdata = (uint8 *)malloc(len + len / 2);
|
|
|
|
out = xdata;
|
|
in = src;
|
|
|
|
for (i = ulen = 0; i < len; i++, ulen++) {
|
|
d = *in++;
|
|
|
|
*out++ = x = mode ? ((d & 0xF0) >> 4) + ((old & 0x0F) << 4) : d;
|
|
|
|
if (x == 0xFF) {
|
|
ulen++;
|
|
break;
|
|
}
|
|
|
|
if (x == 0xf0 || x == 0xf2) {
|
|
if (mode) {
|
|
*out++ = d & 0x0F;
|
|
ulen++;
|
|
} else {
|
|
d = *in++;
|
|
*out++ = (d & 0xF0) >> 4;
|
|
i++, ulen++;
|
|
}
|
|
|
|
mode = !mode;
|
|
}
|
|
|
|
old = d;
|
|
}
|
|
|
|
free(src);
|
|
xdata = (uint8 *)realloc(xdata, ulen);
|
|
|
|
return xdata;
|
|
}
|
|
|
|
/**
|
|
* Decode an AGI picture resource.
|
|
* This function decodes an AGI picture resource into the correct slot
|
|
* and draws it on the AGI screen, optionally clearing the screen before
|
|
* drawing.
|
|
* @param n AGI picture resource number
|
|
* @param clear clear AGI screen before drawing
|
|
* @param agi256 load an AGI256 picture resource
|
|
*/
|
|
int PictureMgr::decodePicture(int n, int clear, bool agi256, int pic_width, int pic_height) {
|
|
debugC(8, kDebugLevelResources, "(%d)", n);
|
|
|
|
_patCode = 0;
|
|
_patNum = 0;
|
|
_priOn = _scrOn = false;
|
|
_scrColor = 0xF;
|
|
_priColor = 0x4;
|
|
|
|
_data = _vm->_game.pictures[n].rdata;
|
|
_flen = _vm->_game.dirPic[n].len;
|
|
_foffs = 0;
|
|
|
|
_width = pic_width;
|
|
_height = pic_height;
|
|
|
|
if (clear && !agi256) // 256 color pictures should always fill the whole screen, so no clearing for them.
|
|
memset(_vm->_game.sbuf16c, 0x4f, _width * _height); // Clear 16 color AGI screen (Priority 4, color white).
|
|
|
|
if (!agi256) {
|
|
drawPicture(); // Draw 16 color picture.
|
|
} else {
|
|
const uint32 maxFlen = _width * _height;
|
|
memcpy(_vm->_game.sbuf256c, _data, MIN(_flen, maxFlen)); // Draw 256 color picture.
|
|
|
|
if (_flen < maxFlen) {
|
|
warning("Undersized AGI256 picture resource %d, using it anyway. Filling rest with white.", n);
|
|
memset(_vm->_game.sbuf256c + _flen, 0x0f, maxFlen - _flen); // Fill missing area with white.
|
|
} else if (_flen > maxFlen)
|
|
warning("Oversized AGI256 picture resource %d, decoding only %ux%u part of it", n, _width, _height);
|
|
}
|
|
|
|
if (clear)
|
|
_vm->clearImageStack();
|
|
_vm->recordImageStackCall(ADD_PIC, n, clear, agi256, 0, 0, 0, 0);
|
|
|
|
return errOK;
|
|
}
|
|
|
|
/**
|
|
* Unload an AGI picture resource.
|
|
* This function unloads an AGI picture resource and deallocates
|
|
* resource data.
|
|
* @param n AGI picture resource number
|
|
*/
|
|
int PictureMgr::unloadPicture(int n) {
|
|
/* remove visual buffer & priority buffer if they exist */
|
|
if (_vm->_game.dirPic[n].flags & RES_LOADED) {
|
|
free(_vm->_game.pictures[n].rdata);
|
|
_vm->_game.dirPic[n].flags &= ~RES_LOADED;
|
|
}
|
|
|
|
return errOK;
|
|
}
|
|
|
|
/**
|
|
* Show AGI picture.
|
|
* This function copies a ``hidden'' AGI picture to the output device.
|
|
*/
|
|
void PictureMgr::showPic(int x, int y, int pic_width, int pic_height) {
|
|
int i, y1;
|
|
int offset;
|
|
_width = pic_width;
|
|
_height = pic_height;
|
|
|
|
debugC(8, kDebugLevelMain, "Show picture!");
|
|
|
|
i = 0;
|
|
offset = _vm->_game.lineMinPrint * CHAR_LINES;
|
|
for (y1 = y; y1 < y + _height; y1++) {
|
|
_gfx->putPixelsA(x, y1 + offset, _width, &_vm->_game.sbuf16c[i]);
|
|
i += _width;
|
|
}
|
|
|
|
_gfx->flushScreen();
|
|
}
|
|
|
|
// preagi needed functions (for plotPattern)
|
|
void PictureMgr::setPattern(uint8 code, uint8 num) {
|
|
_patCode = code;
|
|
_patNum = num;
|
|
}
|
|
|
|
void PictureMgr::setPictureType(int type) {
|
|
_pictureType = type;
|
|
|
|
if (type == AGIPIC_C64)
|
|
_minCommand = 0xe0;
|
|
else
|
|
_minCommand = 0xf0;
|
|
}
|
|
|
|
void PictureMgr::setPictureData(uint8 *data, int len) {
|
|
_data = data;
|
|
_flen = len;
|
|
_foffs = 0;
|
|
_flags = 0;
|
|
}
|
|
|
|
} // End of namespace Agi
|