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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef PARALLACTION_GRAPHICS_H
#define PARALLACTION_GRAPHICS_H
#include "common/rect.h"
#include "common/stream.h"
#include "graphics/surface.h"
#include "parallaction/defs.h"
namespace Parallaction {
#include "common/pack-start.h" // START STRUCT PACKING
struct PaletteFxRange {
uint16 _timer;
uint16 _step;
uint16 _flags;
byte _first;
byte _last;
} PACKED_STRUCT;
#include "common/pack-end.h" // END STRUCT PACKING
class Font {
protected:
byte _color;
public:
Font() {}
virtual ~Font() {}
virtual void setColor(byte color) {
_color = color;
}
virtual uint32 getStringWidth(const char *s) = 0;
virtual uint16 height() = 0;
virtual void drawString(byte* buffer, uint32 pitch, const char *s) = 0;
};
struct Frames {
virtual uint16 getNum() = 0;
virtual byte* getData(uint16 index) = 0;
virtual void getRect(uint16 index, Common::Rect &r) = 0;
virtual ~Frames() { }
};
struct SurfaceToFrames : public Frames {
Graphics::Surface *_surf;
public:
SurfaceToFrames(Graphics::Surface *surf) : _surf(surf) {
}
~SurfaceToFrames() {
delete _surf;
}
uint16 getNum() {
return 1;
}
byte* getData(uint16 index) {
assert(index == 0);
return (byte*)_surf->getBasePtr(0,0);
}
void getRect(uint16 index, Common::Rect &r) {
assert(index == 0);
r.left = 0;
r.top = 0;
r.setWidth(_surf->w);
r.setHeight(_surf->h);
}
};
struct MaskBuffer {
// handles a 2-bit depth buffer used for z-buffering
uint16 w;
uint16 internalWidth;
uint16 h;
uint size;
byte *data;
public:
MaskBuffer() : w(0), internalWidth(0), h(0), size(0), data(0) {
}
void create(uint16 width, uint16 height) {
w = width;
internalWidth = w >> 2;
h = height;
size = (internalWidth * h);
data = (byte*)calloc(size, 1);
}
void free() {
::free(data);
data = 0;
w = 0;
h = 0;
internalWidth = 0;
size = 0;
}
inline byte getValue(uint16 x, uint16 y) {
byte m = data[(x >> 2) + y * internalWidth];
uint n = (x & 3) << 1;
return ((3 << n) & m) >> n;
}
};
struct PathBuffer {
// handles a 1-bit depth buffer used for masking non-walkable areas
uint16 w;
uint16 internalWidth;
uint16 h;
uint size;
byte *data;
public:
PathBuffer() : w(0), internalWidth(0), h(0), size(0), data(0) {
}
void create(uint16 width, uint16 height) {
w = width;
internalWidth = w >> 3;
h = height;
size = (internalWidth * h);
data = (byte*)calloc(size, 1);
}
void free() {
::free(data);
data = 0;
w = 0;
h = 0;
internalWidth = 0;
size = 0;
}
inline byte getValue(uint16 x, uint16 y);
};
class Palette {
byte _data[768];
uint _colors;
uint _size;
bool _hb;
public:
Palette();
Palette(const Palette &pal);
void clone(const Palette &pal);
void makeBlack();
void setEntries(byte* data, uint first, uint num);
void setEntry(uint index, int red, int green, int blue);
void makeGrayscale();
void fadeTo(const Palette& target, uint step);
uint fillRGBA(byte *rgba);
void rotate(uint first, uint last, bool forward);
};
struct Cnv : public Frames {
uint16 _count; // # of frames
uint16 _width; //
uint16 _height; //
byte** field_8; // unused
byte* _data;
public:
Cnv() {
_width = _height = _count = 0;
_data = NULL;
}
Cnv(uint16 numFrames, uint16 width, uint16 height, byte* data) : _count(numFrames), _width(width), _height(height), _data(data) {
}
~Cnv() {
free(_data);
}
byte* getFramePtr(uint16 index) {
if (index >= _count)
return NULL;
return &_data[index * _width * _height];
}
uint16 getNum() {
return _count;
}
byte *getData(uint16 index) {
return getFramePtr(index);
}
void getRect(uint16 index, Common::Rect &r) {
r.left = 0;
r.top = 0;
r.setWidth(_width);
r.setHeight(_height);
}
};
#define CENTER_LABEL_HORIZONTAL -1
#define CENTER_LABEL_VERTICAL -1
struct Label {
Graphics::Surface _cnv;
Common::Point _pos;
bool _visible;
Label();
~Label();
void free();
void resetPosition();
};
#define MAX_BALLOON_WIDTH 130
class Parallaction;
struct DoorData;
struct GetData;
struct Label;
class Disk;
enum {
kGfxObjVisible = 1,
kGfxObjTypeDoor = 0,
kGfxObjTypeGet = 1,
kGfxObjTypeAnim = 2
};
class GfxObj {
char *_name;
Frames *_frames;
uint32 _flags;
bool _keep;
public:
int16 x, y;
uint16 z;
uint type;
uint frame;
uint layer;
GfxObj(uint type, Frames *frames, const char *name = NULL);
virtual ~GfxObj();
const char *getName() const;
uint getNum();
void getRect(uint frame, Common::Rect &r);
byte *getData(uint frame);
void setFlags(uint32 flags);
void clearFlags(uint32 flags);
bool isVisible() {
return (_flags & kGfxObjVisible) == kGfxObjVisible;
}
void release();
};
typedef Common::List<GfxObj*> GfxObjList;
struct BackgroundInfo {
uint width;
uint height;
Graphics::Surface bg;
MaskBuffer mask;
PathBuffer path;
Palette palette;
int layers[4];
PaletteFxRange ranges[6];
BackgroundInfo() : width(0), height(0) {
layers[0] = layers[1] = layers[2] = layers[3] = 0;
memset(ranges, 0, sizeof(ranges));
}
void setPaletteRange(int index, const PaletteFxRange& range) {
assert(index < 6);
memcpy(&ranges[index], &range, sizeof(PaletteFxRange));
}
};
enum {
kBackgroundLocation = 1,
kBackgroundSlide = 2
};
class Gfx {
public:
Disk *_disk;
GfxObjList _gfxobjList[3];
GfxObj* loadAnim(const char *name);
GfxObj* loadGet(const char *name);
GfxObj* loadDoor(const char *name);
void drawGfxObjects(Graphics::Surface &surf);
void showGfxObj(GfxObj* obj, bool visible);
void clearGfxObjects();
void sortAnimations();
// labels
void setFloatingLabel(Label *label);
Label *renderFloatingLabel(Font *font, char *text);
uint createLabel(Font *font, const char *text, byte color);
void showLabel(uint id, int16 x, int16 y);
void hideLabel(uint id);
void freeLabels();
// dialogue balloons
int setLocationBalloon(char *text, bool endGame);
int setDialogueBalloon(char *text, uint16 winding, byte textColor);
int setSingleBalloon(char *text, uint16 x, uint16 y, uint16 winding, byte textColor);
void setBalloonText(uint id, char *text, byte textColor);
int hitTestDialogueBalloon(int x, int y);
void getStringExtent(char *text, uint16 maxwidth, int16* width, int16* height);
// other items
int setItem(Frames* frames, uint16 x, uint16 y);
void setItemFrame(uint item, uint16 f);
void hideDialogueStuff();
void freeBalloons();
void freeItems();
// background surface
BackgroundInfo *_backgroundInfo;
void setBackground(uint type, const char* name, const char* mask, const char* path);
void clearBackground();
void patchBackground(Graphics::Surface &surf, int16 x, int16 y, bool mask = false);
void grabBackground(const Common::Rect& r, Graphics::Surface &dst);
void fillBackground(const Common::Rect& r, byte color);
void invertBackground(const Common::Rect& r);
void freeBackground();
// palette
void setPalette(Palette palette);
void setBlackPalette();
void animatePalette();
// amiga specific
void setHalfbriteMode(bool enable);
void setProjectorPos(int x, int y);
// misc
uint16 queryMask(uint16 v);
void setMask(MaskBuffer *buffer);
// init
Gfx(Parallaction* vm);
virtual ~Gfx();
void updateScreen();
public:
Palette _palette;
uint _screenX; // scrolling position
uint _screenY;
protected:
Parallaction* _vm;
Font *_font;
bool _halfbrite;
Common::Point _hbCirclePos;
int _hbCircleRadius;
protected:
static int16 _dialogueBalloonX[5];
struct Balloon {
uint16 x;
uint16 y;
Common::Rect outerBox;
Common::Rect innerBox;
uint16 winding;
Graphics::Surface surface;
} _balloons[5];
uint _numBalloons;
struct Item {
uint16 x;
uint16 y;
uint16 frame;
Frames *data;
Common::Rect rect;
} _items[2];
uint _numItems;
#define MAX_NUM_LABELS 5
Label* _labels[MAX_NUM_LABELS];
uint _numLabels;
Label *_floatingLabel;
void drawInventory();
void updateFloatingLabel();
void drawLabels();
void drawItems();
void drawBalloons();
void copyRect(const Common::Rect &r, Graphics::Surface &src, Graphics::Surface &dst);
int createBalloon(int16 w, int16 h, int16 winding, uint16 borderThickness);
Balloon *getBalloon(uint id);
// low level text and patches
void setFont(Font* font);
void drawText(Graphics::Surface* surf, uint16 x, uint16 y, const char *text, byte color);
bool drawWrappedText(Graphics::Surface* surf, char *text, byte color, int16 wrapwidth);
void blt(const Common::Rect& r, byte *data, Graphics::Surface *surf, uint16 z, byte transparentColor);
};
} // Parallaction
#endif
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