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diff --git a/util/ftalleg.cpp b/util/ftalleg.cpp
index 616f6ced..7844946b 100644
--- a/util/ftalleg.cpp
+++ b/util/ftalleg.cpp
@@ -1,733 +1,737 @@
/*
--------------
About
--------------
A Freetype wrapper for use with allegro
Feel free to do whatever you like with this, by all means enjoy!
Just add it to your project
--------------
Linking
--------------
on linux:
g++ `freetype-config --cflags` ftalleg.cpp myfiles.cpp `freetype-config --libs` `allegro-config --libs`
on windows (you may need to include the freetype dir location, ie -Ic:/mingw/include):
g++ ftalleg.cpp myfiles.cpp -lfreetype -lalleg
--------------
Disclaimer
--------------
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE
SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef FT_FONT_CPP
#define FT_FONT_CPP
#include "bitmap.h"
/*
#include <allegro.h>
#ifdef _WIN32
#include <winalleg.h>
#endif
*/
#include "ftalleg.h"
#include <iostream>
#include <sstream>
#include <cassert>
#include <exception>
#ifdef USE_ALLEGRO5
#include <allegro5/allegro_font.h>
#include <allegro5/allegro_ttf.h>
#endif
namespace ftalleg{
Exception::Exception():
std::exception(){
}
Exception::Exception(const std::string reason):
std::exception(),
reason(reason){
}
Exception::~Exception() throw(){
}
// typedef void (*pixeler)( BITMAP * bitmap, int x, int y, int color );
static Graphics::Color fixColor(const unsigned char c, short grays){
// Safety checks
// assert(c != 0);
assert(grays != 1);
// invariant: c can be dereferenced safely
// invariant: (grays - 1) != 0, thus it can be used as divisor.
int red = c * 255 / (grays - 1);
int green = c * 255 / (grays - 1);
int blue = c * 255 / (grays - 1);
//alpha = *c * 255 / (grays - 1);
return Graphics::makeColor(red,green,blue);
}
// Static count of instances of fonts to track library
static int instances = 0;
static FT_Library ftLibrary = 0;
character::character() {
}
character::~character() {
if (line){
delete [] line;
}
}
fontSize::fontSize() {
width = height = italics = angle = 0;
}
fontSize::fontSize(int width, int height):
width(width),
height(height),
italics(0),
angle(0){
}
fontSize::~fontSize() {
}
bool fontSize::operator<(const fontSize &fs) const {
return (width<fs.width || height<fs.height || italics<fs.italics);
}
/* im not sure this is a very unique key.. */
int fontSize::createKey() const {
return ((width+10) * (height+20) * (italics+250));
}
#ifdef USE_ALLEGRO5
freetype::freetype(const Filesystem::AbsolutePath & path, const int x, const int y):
alive(5, 5),
path(path),
width(x),
height(y),
original_size(x){
if (instances == 0){
al_init_font_addon();
al_init_ttf_addon();
}
instances += 1;
+ int flags = al_get_new_bitmap_flags();
+ /* memory fonts must live in memory */
+ al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP);
fonts[width].memory = al_load_font(path.path().c_str(), width, 0);
+ al_set_new_bitmap_flags(flags);
fonts[width].video = al_load_font(path.path().c_str(), width, 0);
}
freetype::~freetype(){
for (std::map<int, FontUse>::iterator it = fonts.begin(); it != fonts.end(); it++){
FontUse & font = it->second;
al_destroy_font(font.memory);
al_destroy_font(font.video);
}
instances -= 1;
if (instances == 0){
al_shutdown_font_addon();
}
}
ALLEGRO_FONT * freetype::currentMemoryFont() const {
std::map<int, FontUse>::const_iterator find = fonts.find(width);
if (find == fonts.end()){
throw Exception("inconsistency error");
}
return find->second.memory;
}
ALLEGRO_FONT * freetype::currentVideoFont() const {
std::map<int, FontUse>::const_iterator find = fonts.find(width);
if (find == fonts.end()){
throw Exception("inconsistency error");
}
return find->second.video;
}
int freetype::getHeight(const std::string & str) const {
Util::Thread::ScopedLock locked(lock);
/* sort of a hack but we need to set the display to the screen. with
* allegro5 the screen buffer will be the actual screen so no allocation
* will occur.
*/
// al_set_target_bitmap(alive.getData().getBitmap());
ALLEGRO_BITMAP * target = al_get_target_bitmap();
al_set_target_bitmap(NULL);
int height = al_get_font_line_height(currentMemoryFont());
al_set_target_bitmap(target);
return height;
}
int freetype::getLength(const std::string & text) const {
Util::Thread::ScopedLock locked(lock);
// al_set_target_bitmap(alive.getData().getBitmap());
ALLEGRO_BITMAP * target = al_get_target_bitmap();
al_set_target_bitmap(NULL);
int width = al_get_text_width(currentMemoryFont(), text.c_str());
al_set_target_bitmap(target);
return width;
}
void freetype::setSize(unsigned int w, unsigned int h){
Util::Thread::ScopedLock locked(lock);
width = w;
height = h;
if (fonts.find(width) == fonts.end()){
fonts[width].memory = al_load_font(path.path().c_str(), width, 0);
fonts[width].video = al_load_font(path.path().c_str(), width, 0);
}
}
void freetype::getSize(int * w, int * h) const {
Util::Thread::ScopedLock locked(lock);
*w = width;
*h = height;
}
void freetype::render(int x, int y, const Graphics::Color & color, const Graphics::Bitmap & bmp, ftAlign alignment, const std::string & text, int marker, ...){
Util::Thread::ScopedLock locked(lock);
std::ostringstream str;
/* use vsnprintf/Util::limitPrintf here? */
// Get extra arguments
va_list ap;
va_start(ap, marker);
for(unsigned int i = 0; i<text.length();++i) {
if (text[i] == '%') {
if(text[i+1]=='s') {
str << va_arg(ap, char *);
++i;
} else if(text[i+1]=='d'||text[i+1]=='i') {
str << va_arg(ap, signed int);
++i;
} else if(text[i+1]=='c') {
str << (char)va_arg(ap, int);
++i;
} else str << text[i];
} else {
str << text[i];
}
}
va_end(ap);
std::string fixedText(str.str());
al_set_target_bitmap(bmp.getData()->getBitmap());
al_set_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA);
/* for setting the blend state and whatnot */
bmp.startDrawing();
al_draw_text(currentVideoFont(), bmp.blendColor(color), x, y, 0, fixedText.c_str());
bmp.endDrawing();
}
#else
//! Constructor
freetype::freetype(const Filesystem::AbsolutePath & str, const int x, const int y ):
face(NULL){
//Load library
if (!ftLibrary){
FT_Init_FreeType(&ftLibrary);
}
instances += 1;
faceLoaded = kerning = false;
currentIndex = 0;
currentFilename = "";
faceName = "";
// currentChar = new character;
systemName = "";
internalFix = false;
this->load(str, 0, x, y );
}
//! Destructor
freetype::~freetype(){
//if(face!=NULL)FT_Done_Face(face);
if (faceLoaded && face != NULL){
FT_Done_Face(face);
face = NULL;
}
instances -= 1;
if (instances == 0){
FT_Done_FreeType(ftLibrary);
ftLibrary = NULL;
}
destroyGlyphIndex();
/*
if ( currentChar ){
delete currentChar;
}
*/
}
void freetype::destroyGlyphIndex(){
for (std::map<int, std::map<signed long, character*> >::iterator i1 = fontTable.begin(); i1 != fontTable.end(); i1++){
std::map<signed long, character*> & characters = (*i1).second;
for (std::map<signed long, character*>::iterator i2 = characters.begin(); i2 != characters.end(); i2++){
character * character = (*i2).second;
delete character;
}
}
}
// Extract glyph
character * freetype::extractGlyph(signed long unicode){
int w, h, ew;
character * tempChar = new character();
// Translate it according to the given italics
double italics = (double)(size.italics)*GLYPH_PI/180;
FT_Matrix matrix;
matrix.xx = 0x10000L;
matrix.xy = (FT_Fixed)( sin( italics ) * (GLYPH_SQRT2*0x10000L) );
matrix.yx = 0;
matrix.yy = 0x10000L;
FT_Set_Transform( face, &matrix, 0 );
FT_Load_Char(face, unicode, FT_LOAD_TARGET_NORMAL | FT_LOAD_RENDER | FT_LOAD_FORCE_AUTOHINT);
w = face->glyph->bitmap.width;
h = face->glyph->bitmap.rows;
ew = 0;
if (!w)ew = 1;
if (!h)h = 1;
tempChar->width = (w + ew);
tempChar->height = h;
tempChar->rows = face->glyph->bitmap.rows;
tempChar->grays = face->glyph->bitmap.num_grays;
tempChar->pitch = face->glyph->bitmap.pitch;
tempChar->line = new unsigned char[tempChar->rows * tempChar->pitch];
memcpy(tempChar->line, face->glyph->bitmap.buffer, tempChar->rows * tempChar->pitch);
tempChar->left = face->glyph->bitmap_left;
tempChar->top = face->glyph->bitmap_top;
tempChar->right = face->glyph->advance.x >> 6;
tempChar->unicode = unicode;
tempChar->length = ((w + ew)+face->glyph->advance.x) >> 6;
return tempChar;
}
// Create single index
void freetype::createIndex(){
std::map<int, std::map<signed long, character*> >::iterator p;
p = fontTable.find(size.createKey());
if (p == fontTable.end()){
FT_Set_Pixel_Sizes(face, size.width, size.height);
FT_UInt glyphIndex;
FT_ULong unicode = FT_Get_First_Char(face, &glyphIndex);
std::map<signed long, character*> tempMap;
while (glyphIndex != 0){
tempMap.insert(std::make_pair(unicode, extractGlyph(unicode)));
unicode = FT_Get_Next_Char(face, unicode, &glyphIndex);
}
fontTable.insert(std::make_pair(size.createKey(), tempMap));
}
if (fontTable.find(size.createKey()) == fontTable.end()){
printf("ftalleg: inconsistency error\n");
throw std::exception();
}
}
/*
pixeler getPutPixel(){
switch( get_color_depth() ){
case 8 : return _putpixel;
case 15 : return _putpixel15;
case 16 : return _putpixel16;
case 24 : return _putpixel24;
case 32 : return _putpixel32;
default : return putpixel;
}
}
*/
void drawOneCharacter(const character * tempChar, int & x1, int & y1, FT_UInt sizeHeight, const Graphics::Bitmap & bitmap, const Graphics::Color & color){
unsigned char * line = tempChar->line;
int colorRed = Graphics::getRed(color);
int colorGreen = Graphics::getGreen(color);
int colorBlue = Graphics::getBlue(color);
/* cache the last color, there is a good chance it will be reused */
unsigned char lastData = -1;
short lastGrays = -1;
Graphics::Color black = Graphics::makeColor(0, 0, 0);
Graphics::Color lastColor = black;
for (int y = 0; y < tempChar->rows; y++){
unsigned char * buffer = line;
for (int x = 0; x < tempChar->width; x++){
Graphics::Color finalColor = black;
unsigned char current = *buffer;
buffer++;
if (current == lastData && lastGrays == tempChar->grays){
finalColor = lastColor;
} else {
Graphics::Color col = fixColor(current, tempChar->grays);
int red = Graphics::getRed(col);
int green = Graphics::getGreen(col);
int blue = Graphics::getBlue(col);
if ((red < 50) ||
(green < 50) ||
(blue < 50)){
continue;
}
red = red * colorRed / 255;
green = green * colorGreen / 255;
blue = blue * colorBlue / 255;
finalColor = Graphics::makeColor(red, green, blue);
lastData = current;
lastColor = finalColor;
lastGrays = tempChar->grays;
}
//col.alpha= col.alpha * color.alpha / 255;
// putpixel(bitmap,x1+tempChar.left+x,y1 - tempChar.top+y + size.height,makecol(red,blue,green));
/* dangerous! putter is probably one of the _putpixel* routines so if x or y are off the bitmap
* you will get a segfault
*/
// putter(bitmap,x1+tempChar.left+x,y1 - tempChar.top+y + size.height,makecol(red,blue,green));
// putter = 0;
int finalX = x1+tempChar->left+x;
int finalY = y1 - tempChar->top + y + sizeHeight;
bitmap.putPixelNormal(finalX, finalY, finalColor);
}
line += tempChar->pitch;
}
x1 += tempChar->right;
}
// Render a character from the lookup table
void freetype::drawCharacter(signed long unicode, int &x1, int &y1, const Graphics::Bitmap & bitmap, const Graphics::Color &color){
// pixeler putter = getPutPixel();
std::map<int, std::map<signed long, character*> >::iterator ft;
ft = fontTable.find(size.createKey());
if (ft != fontTable.end()){
std::map<signed long, character*>::iterator p;
p = (ft->second).find(unicode);
if (p != ft->second.end()){
const character * tempChar = p->second;
drawOneCharacter(tempChar, x1, y1, size.height, bitmap, color);
}
}
}
//! Load font from memory
bool freetype::load(const unsigned char *memoryFont, unsigned int length, int index, unsigned int width, unsigned int height) {
if(!FT_New_Memory_Face(ftLibrary,memoryFont, length,index,&face)) {
currentFilename = "memoryFont";
currentIndex = index;
faceLoaded = true;
size.italics = 0;
setSize(width, height);
if (FT_HAS_GLYPH_NAMES(face)){
char buff[1024];
if(!FT_Get_Glyph_Name(face, currentIndex,buff, sizeof(buff))){
faceName = currentFilename;
}
else faceName = std::string(buff);
} else {
faceName = currentFilename;
}
if(FT_HAS_KERNING(face))kerning=true;
else kerning = false;
} else {
faceLoaded=false;
std::cout << "Load system font failed\n";
}
return faceLoaded;
}
//! Load font from file
bool freetype::load(const Filesystem::AbsolutePath & filename, int index, unsigned int width, unsigned int height){
FT_Error error = FT_New_Face(ftLibrary, filename.path().c_str(), index, &face);
if (error == 0){
currentFilename = filename.path();
currentIndex = index;
faceLoaded = true;
size.italics = 0;
setSize(width, height);
if (FT_HAS_GLYPH_NAMES(face)){
char buff[1024];
if (!FT_Get_Glyph_Name(face, currentIndex, buff, sizeof(buff))) {
faceName = currentFilename;
} else {
faceName = std::string(buff);
}
} else {
faceName = currentFilename;
}
kerning = FT_HAS_KERNING(face);
} else {
faceLoaded=false;
}
return faceLoaded;
}
/* utf8 decoding */
static long decodeUnicode(const std::string & input, unsigned int * position){
unsigned char byte1 = (unsigned char) input[*position];
/* one byte - ascii */
if (byte1 >> 7 == 0){
return byte1;
}
if (byte1 >> 5 == 6){
*position += 1;
unsigned char byte2 = (unsigned char) input[*position];
int top = byte1 & 31;
int bottom = byte2 & 63;
return (top << 6) + bottom;
}
if (byte1 >> 4 == 14){
*position += 1;
unsigned char byte2 = (unsigned char) input[*position];
*position += 1;
unsigned char byte3 = (unsigned char) input[*position];
int top4 = byte1 & 15;
int middle6 = byte2 & 63;
int bottom6 = byte3 & 63;
return (top4 << (6+6)) + (middle6 << 6) + bottom6;
}
if (byte1 >> 3 == 30){
*position += 1;
unsigned char byte2 = (unsigned char) input[*position];
*position += 1;
unsigned char byte3 = (unsigned char) input[*position];
*position += 1;
unsigned char byte4 = (unsigned char) input[*position];
int unit1 = byte1 & 7;
int unit2 = byte2 & 63;
int unit3 = byte3 & 63;
int unit4 = byte4 & 63;
return (unit1 << 18) + (unit2 << 12) + (unit3 << 6) + unit4;
}
return 0;
}
//! Get text length
int freetype::getLength(const std::string & text) {
Util::Thread::ScopedLock locked(lock);
int length=0;
std::map<int, std::map<signed long, character*> >::iterator ft;
ft = fontTable.find(size.createKey());
if (ft != fontTable.end()){
for (unsigned int i = 0; i < text.length(); i++) {
std::map<signed long, character*>::iterator p;
signed long unicode = decodeUnicode(text, &i);
p = (ft->second).find(unicode);
if (p != (ft->second).end()){
if (p != fontTable[size.createKey()].end()){
length += (p->second)->length;
}
}
}
}
return length;
}
//! Render font to a bitmap
void freetype::render(int x, int y, const Graphics::Color & color, const Graphics::Bitmap & bmp, ftAlign alignment, const std::string & text, int marker ...) {
if (faceLoaded){
int rend_x = 0;
int rend_y = 0;
std::ostringstream str;
/* use vsnprintf/Util::limitPrintf here? */
// Get extra arguments
va_list ap;
va_start(ap, marker);
for(unsigned int i = 0; i<text.length();++i) {
if (text[i] == '%') {
if(text[i+1]=='s') {
str << va_arg(ap, char *);
++i;
} else if(text[i+1]=='d'||text[i+1]=='i') {
str << va_arg(ap, signed int);
++i;
} else if(text[i+1]=='c') {
str << (char)va_arg(ap, int);
++i;
} else str << text[i];
} else {
str << text[i];
}
}
va_end(ap);
std::string fixedText(str.str());
switch (alignment) {
case ftLeft:
rend_x = x;
rend_y = y;
break;
case ftCenter:
rend_x = x - getLength(fixedText)/2;
rend_y = y;
break;
case ftRight:
rend_x = x - getLength(fixedText);
rend_y = y;
break;
default:
rend_x = x;
rend_y = y;
break;
}
int previous = 0;
int next = 0;
for (unsigned int i = 0; i<fixedText.length(); i++){
long unicode = decodeUnicode(fixedText, &i);
if (kerning && previous && next){
next = FT_Get_Char_Index(face, unicode);
FT_Vector delta;
FT_Get_Kerning(face, previous, next, FT_KERNING_DEFAULT, &delta);
rend_x += delta.x >> 6;
previous = next;
}
drawCharacter(unicode, rend_x, rend_y, bmp, color);
}
}
}
int freetype::calculateMaximumHeight(){
Util::Thread::ScopedLock locked(lock);
/* uhh, comment out the printf's ?? */
std::map<int, std::map<signed long, character*> >::iterator ft;
ft = fontTable.find(size.createKey());
int top = 0;
long code = 0;
if ( ft != fontTable.end() ){
std::map<signed long, character*>::iterator p;
std::map< signed long, character* > & map = ft->second;
for ( p = map.begin(); p != map.end(); p++ ){
const character * ch = p->second;
printf( "%c( %ld ). top = %d. rows = %d. total = %d\n", (char) ch->unicode, ch->unicode, ch->top, ch->rows, ch->top + ch->rows );
if ( ch->top + ch->rows > top ){
code = ch->unicode;
top = ch->top + ch->rows;
}
}
}
printf( "Largest letter = %ld\n", code );
return top;
}
int freetype::height(long code) const {
Util::Thread::ScopedLock locked(lock);
std::map<int, std::map<signed long, character*> >::const_iterator ft;
ft = fontTable.find(size.createKey());
if (ft != fontTable.end()){
std::map<signed long, character*>::const_iterator p;
p = (ft->second).find( code );
if ( p != (ft->second).end() ){
const character * temp = p->second;
// printf( "%c top = %d rows = %d\n", (char) code, temp.top, temp.rows );
return temp->top + temp->rows;
}
} else {
throw Exception("Internal inconsistency");
}
return 0;
}
int freetype::calculateHeight( const std::string & str ) const {
int max = 0;
for ( unsigned int i = 0; i < str.length(); i++ ){
int q = height( str[ i ] );
// printf( "Height of %c is %d\n", str[ i ], q );
if ( q > max ){
max = q;
}
}
return max;
}
//! Set size
void freetype::setSize( unsigned int w, unsigned int h){
Util::Thread::ScopedLock locked(lock);
if ( w != size.width || h != size.height ){
if (internalFix)return;
if (w<=0 || h<=0)return;
size.width = w;
size.height = h;
createIndex();
// maximumHeight = calculateMaximumHeight();
}
}
//! Set italics
void freetype::setItalics(int i){
Util::Thread::ScopedLock locked(lock);
if(internalFix)return;
if(i<-45)i=(-45);
else if(i>45)i=45;
size.italics = i;
createIndex();
}
void freetype::getSize(int * w, int * h) const {
*w = size.width;
*h = size.height;
}
//! Get Width
int freetype::getWidth() const {
return size.width;
}
//! Get Height
int freetype::getHeight( const std::string & str ) const {
// return size.height;
return calculateHeight(str);
}
//! Get Italics
int freetype::getItalics(){
return size.italics;
}
#endif
}
#endif /* FONT_BASE_CPP */

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