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bitmap.cpp
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bitmap.cpp
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#ifdef USE_ALLEGRO
#include <allegro.h>
#endif
#include "bitmap.h"
#include <string>
#include <math.h>
/* implementation independant definitions can go here */
Bitmap * Bitmap::temporary_bitmap = NULL;
std::vector<Bitmap*> Bitmap::needResize;
int Bitmap::SCALE_X = 0;
int Bitmap::SCALE_Y = 0;
const int Bitmap::MODE_TRANS = 0;
const int Bitmap::MODE_SOLID = 1;
const int Bitmap::SPRITE_NO_FLIP = 0;
const int Bitmap::SPRITE_V_FLIP = 1;
const int Bitmap::SPRITE_H_FLIP = 2;
const int Bitmap::SPRITE_NORMAL = 1;
const int Bitmap::SPRITE_LIT = 2;
const int Bitmap::SPRITE_TRANS = 3;
#ifdef USE_ALLEGRO
#include "allegro/bitmap.cpp"
#endif
#ifdef USE_SDL
#include "sdl/bitmap.cpp"
#endif
static inline int max(int a, int b){
return a > b ? a : b;
}
Bitmap::~Bitmap(){
if (mustResize){
for (std::vector<Bitmap*>::iterator it = needResize.begin(); it != needResize.end(); it++){
Bitmap * who = *it;
if (who == this){
needResize.erase(it);
break;
}
}
}
releaseInternalBitmap();
}
Bitmap Bitmap::temporaryBitmap(int w, int h){
if (temporary_bitmap == NULL){
temporary_bitmap = new Bitmap(w, h);
} else if (temporary_bitmap->getWidth() < w || temporary_bitmap->getHeight() < h){
int mw = max(temporary_bitmap->getWidth(), w);
int mh = max(temporary_bitmap->getHeight(), h);
// printf("Create temporary bitmap %d %d\n", mw, mh);
delete temporary_bitmap;
temporary_bitmap = new Bitmap(mw, mh);
}
if (temporary_bitmap == NULL){
printf("*bug* temporary bitmap is null\n");
}
return Bitmap(*temporary_bitmap, 0, 0, w, h);
}
void Bitmap::cleanupTemporaryBitmaps(){
if (temporary_bitmap != NULL){
delete temporary_bitmap;
temporary_bitmap = NULL;
}
}
double Bitmap::getScale(){
/* the game is pretty much hard coded to run at 320 scaled upto 640
* and then scaled to whatever the user wants, but as long as
* 320 and 640 remain this number will be 2.
* maybe calculate this at some point
*/
return 2;
/*
if (Scaler != NULL && Buffer != NULL){
double x1 = Scaler->getWidth();
double x2 = Buffer->getWidth();
return x2 / x1;
}
return 1;
*/
}
/* taken from the color addon from allegro 4.9 */
static void al_color_cmyk_to_rgb(float cyan, float magenta, float yellow, float key, float *red, float *green, float *blue){
float max = 1 - key;
*red = max - cyan * max;
*green = max - magenta * max;
*blue = max - yellow * max;
}
void Bitmap::cymkToRGB(int c, int y, int m, int k, int * r, int * g, int * b){
float fc = (float)c / 255.0;
float fy = (float)y / 255.0;
float fm = (float)m / 255.0;
float fk = (float)k / 255.0;
float fr, fg, fb;
al_color_cmyk_to_rgb(fc, fm, fy, fk, &fr, &fg, &fb);
*r = (int)(fr * 255.0);
*g = (int)(fg * 255.0);
*b = (int)(fb * 255.0);
}
int Bitmap::getScreenWidth(){
if (Screen != 0){
return Screen->getWidth();
}
return 0;
}
int Bitmap::getScreenHeight(){
if (Screen != 0){
return Screen->getHeight();
}
return 0;
}
void Bitmap::updateOnResize(){
if (!mustResize){
mustResize = true;
needResize.push_back(this);
}
}
/* resize the internal bitmap. not guaranteed to destroy the internal bitmap */
void Bitmap::resize( const int width, const int height ){
/* if internal bitmap is already the proper size, do nothing */
if ( getWidth() == width && getHeight() == height ){
return;
}
Bitmap created(width, height);
Stretch(created);
*this = created;
/*
BITMAP * b = create_bitmap( width, height );
::stretch_blit( getData().getBitmap(), b, 0, 0, getData().getBitmap()->w, getData().getBitmap()->h, 0, 0, b->w, b->h );
releaseInternalBitmap();
own = new int;
getData().setBitmap( b );
*own = 1;
*/
}
/* decrement bitmap reference counter and free memory if counter hits 0 */
void Bitmap::releaseInternalBitmap(){
const int MAGIC_DEBUG = 0xa5a5a5;
if (own != NULL){
if (*own == MAGIC_DEBUG){
printf("[bitmap] Trying to delete an already deleted reference counter %p\n", own);
}
(*own) -= 1;
if ( *own == 0 ){
*own = MAGIC_DEBUG;
delete own;
destroyPrivateData();
own = NULL;
}
}
}
void Bitmap::BlitToScreen() const {
// this->Blit( *Bitmap::Screen );
this->BlitToScreen(0, 0);
}
void Bitmap::load( const std::string & str ){
releaseInternalBitmap();
internalLoadFile( str.c_str() );
}
void Bitmap::border( int min, int max, int color ) const {
int w = getWidth();
int h = getHeight();
for (int i = min; i < max; i++){
rectangle(i, i, w - 1 - i, h - 1 - i, color);
}
}
void Bitmap::drawHFlip(const int x, const int y, const int startWidth, const int startHeight, const int width, const int height, const Bitmap & where) const {
/*
Bitmap sub(*this, startWidth, startHeight, width, height);
// sub.drawHFlip(x + startWidth, y + startHeight, where);
sub.drawHFlip(x + startWidth, y + startHeight, where);
*/
Bitmap sub(*this, getWidth() - width, getHeight() - height, getWidth() - startWidth, getHeight() - startHeight);
// sub.drawHFlip(x + startWidth, y + startHeight, where);
// sub.drawHFlip(x + startWidth, y + startHeight, where);
sub.drawHFlip(x + startWidth, y + startHeight, where);
}
void Bitmap::draw(const int x, const int y, const int startWidth, const int startHeight, const int width, const int height, const Bitmap & where) const {
Bitmap sub(*this, startWidth, startHeight, width, height);
sub.draw(x + startWidth, y + startHeight, where);
}
void Bitmap::equilateralTriangle(int x, int y, int angle, int size, int color) const {
double radians = Util::radians(angle);
int x1 = x + size / 2 * cos(radians + 2 * Util::pi / 3);
int y1 = y + size / 2 * sin(radians + 2 * Util::pi / 3);
int x2 = x + size / 2 * cos(radians - 2 * Util::pi / 3);
int y2 = y + size / 2 * sin(radians - 2 * Util::pi / 3);
int x3 = x + size / 2 * cos(radians);
int y3 = y + size / 2 * sin(radians);
triangle(x1, y1, x2, y2, x3, y3, color);
}
Bitmap Bitmap::greyScale(){
Bitmap grey(getWidth(), getHeight());
for (int x = 0; x < getWidth(); x++){
for (int y = 0; y < getHeight(); y++){
int pixel = getPixel(x, y);
int val = (int)((0.299*getRed(pixel) + 0.587*getGreen(pixel) + 0.114*getBlue(pixel) + 0.5) + 16);
if (val > 255){
val = 255;
}
grey.putPixel(x, y, makeColor(val, val, val));
}
}
return grey;
}
void Bitmap::drawMask( const int _x, const int _y, const Bitmap & where ){
int mask = Bitmap::MaskColor();
for ( int x = 0; x < getWidth(); x++ ){
for ( int y = 0; y < getHeight(); y++ ){
if ( getPixel( x,y ) == mask ){
where.putPixel( x+_x, y+_y, mask );
}
}
}
}
void Bitmap::set8BitMaskColor(int color){
bit8MaskColor = color;
}
int Bitmap::get8BitMaskColor(){
return bit8MaskColor;
}
void Bitmap::setFakeGraphicsMode(int width, int height){
Screen = new Bitmap(width, height);
}
void Bitmap::Blit( const std::string & xpath ) const {
Bitmap duh( xpath );
duh.Blit( *this );
}
void Bitmap::BlitFromScreen(const int x, const int y) const {
Screen->Blit(x, y, getWidth(), getHeight(), 0, 0, *this);
}
LitBitmap::LitBitmap(const Bitmap & b):
Bitmap(b){
int x1, y1, x2, y2;
b.getClipRect(x1, y1, x2, y2);
setClipRect(x1, y1, x2, y2);
}
LitBitmap::LitBitmap():
Bitmap(){
}
LitBitmap::~LitBitmap(){
}
TranslucentBitmap Bitmap::translucent() const {
return TranslucentBitmap(*this);
}
TranslucentBitmap::TranslucentBitmap(const Bitmap & b):
Bitmap(b){
int x1, y1, x2, y2;
b.getClipRect(x1, y1, x2, y2);
setClipRect(x1, y1, x2, y2);
}
TranslucentBitmap::TranslucentBitmap():
Bitmap(){
}
TranslucentBitmap::~TranslucentBitmap(){
}
void TranslucentBitmap::fill(int color) const {
Bitmap::applyTrans(color);
}

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