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/***************************************************************************
Font.cpp - description
-------------------
begin : Mon Jul 23 2001
copyright : (C) 2001 by Henrik Enqvist IB
email : henqvist@excite.com
***************************************************************************/
#include "Private.h"
#include "EmFont.h"
#include "TextureUtil.h"
#include "Config.h"
#include <cstring>
#include <string>
#include <iostream>
// extern int em_width_;
// extern int em_height_;
// extern int em_width_div2_;
// extern int em_height_div2_;
EmFont * EmFont::p_EmFont = NULL;
EmFont::EmFont() {
p_Config = Config::getInstance();
m_Texture = NULL;
m_iSize = 0;
}
EmFont::~EmFont() {
}
EmFont * EmFont::getInstance() {
if (p_EmFont == NULL) {
p_EmFont = new EmFont();
}
return p_EmFont;
}
/* All fonts must be 8x8 character bitmaps, where each character is SIZExSIZE pixels */
void EmFont::loadFont(const char * filename) {
m_Texture = TextureUtil::getInstance()->loadTexture(filename);
if (m_Texture == NULL) {
cerr << "Font file not found: " << filename << endl;
return;
}
#if EM_USE_SDL
m_iSize = 32;
#endif
#if EM_USE_ALLEGRO
m_iSize = (m_Texture->w >> 3);
#endif
}
/*
float EmFont::getRelativeSizeX() {
#if EM_USE_SDL
return 0.06f;
#endif
#if EM_USE_ALLEGRO
return 0.05f;
#endif
}
float EmFont::getRelativeSizeY() {
#if EM_USE_SDL
return 0.08f;
#endif
#if EM_USE_ALLEGRO
return 0.08f;
#endif
}
*/
void EmFont::printRow(const char * buffer, float row) {
if (buffer == NULL) return;
if (m_Texture == NULL) {
cerr << "No font defined" << endl;
return;
}
#if EM_USE_SDL
if (row > -0.0001f) {
// count rows from top of screen
this->print(buffer, -EM_RIGHT, EM_UP - row*EM_FONTSIZE_Y);
} else {
// count rows from bottom of screen
this->print(buffer, -EM_RIGHT, -EM_UP - row*EM_FONTSIZE_Y);
}
#endif
#if EM_USE_ALLEGRO
if (row > -0.0001f) {
this->print(buffer, 0, (int)(row*(float)p_Config->getHeight()*EM_FONTSIZE_Y));
} else {
this->print(buffer, 0, (int)(p_Config->getHeight() +
row*(float)p_Config->getHeight()*EM_FONTSIZE_Y));
}
#endif
}
void EmFont::printRowCenter(const char * buffer, float row) {
if (buffer == NULL) return;
if (m_Texture == NULL) {
cerr << "No font defined" << endl;
return;
}
#if EM_USE_SDL
if (row > -0.0001f) {
this->print(buffer, -(float)strlen(buffer)*EM_FONTSIZE_X/2, EM_UP - row*EM_FONTSIZE_Y);
} else {
this->print(buffer, -(float)strlen(buffer)*EM_FONTSIZE_X/2, -EM_UP - row*EM_FONTSIZE_Y);
}
#endif
#if EM_USE_ALLEGRO
if (row > -0.0001f) {
this->print(buffer, p_Config->getWidthDiv2() -
(int)((float)strlen(buffer)*(float)p_Config->getHeightDiv2()*EM_FONTSIZE_Y),
(int)(row*(float)p_Config->getHeight()*EM_FONTSIZE_Y));
} else {
this->print(buffer, p_Config->getWidthDiv2() -
(int)((float)strlen(buffer)*(float)p_Config->getHeightDiv2()*EM_FONTSIZE_Y),
(int)(p_Config->getHeight() +
(int)(row*(float)p_Config->getHeight()*EM_FONTSIZE_Y)));
}
#endif
}
#if EM_USE_SDL
void EmFont::print(const char * buffer, float x, float y) {
// TODO don't need this check as the function is protected
if (buffer == NULL) return;
if (m_Texture == NULL) {
cerr << "No font defined" << endl;
return;
}
int filter = Config::getInstance()->getGLFilter();
if (filter == -1) filter = GL_NEAREST;
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
glEnable(GL_ALPHA_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, *(m_Texture));
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
for (int a=0; a<255 && buffer[a] != 0 && buffer[a] != 10; a++) {
int b = buffer[a];
int c = 36;
if (47<b && b<58) { // a number
c = b - 48;
} else if (64<b && b<91) { // a big character
c = b - 65 + 10;
} else if (96<b && b<123) { // a small character
c = b - 97 + 10;
} else if (32<b && b<48) { // special character
c = b - 32 + 35;
} else if (57<b && b<65) { // special character
c = b - 57 + 50;
} else if (b==32) { // space
c=63;
} else {
c=56;
}
float u = (float)(c & 0x7)/8;
float v = (float)(c >> 3)/8;
//cerr << b <<" "<< c <<" "<< (char)b <<" "<< u <<" "<< v << endl;
float ratio = Config::getInstance()->getRatio();
if (ratio >= 1 || ratio <=0) { ratio = 1.; }
float xbottom = (x + a*EM_FONTSIZE_X)*ratio;
float xtop = (x + (a+1)*EM_FONTSIZE_X)*ratio;
glBegin(GL_QUADS);
glTexCoord2f(u, v);
glVertex3f(xbottom, y, -1);
glTexCoord2f(u+0.125, v);
glVertex3f(xtop, y, -1);
glTexCoord2f(u+0.125, v+0.125);
glVertex3f(xtop, y-EM_FONTSIZE_Y, -1);
glTexCoord2f(u, v+0.125);
glVertex3f(xbottom, y-EM_FONTSIZE_Y, -1);
glEnd();
// cerr << "sork" << buffer[a] << endl;
}
}
#endif // EM_USE_SDL
#if EM_USE_ALLEGRO
void EmFont::print(const char * buffer, int x, int y) {
// TODO don't need this check as the function is protected
if (buffer == NULL) return;
if (m_Texture == NULL) {
cerr << "No font defined" << endl;
return;
}
int realsizeX = (int)((float)p_Config->getWidth()*EM_FONTSIZE_X);
int realsizeY = (int)((float)p_Config->getHeight()*EM_FONTSIZE_Y);
for (int a=0; a<255 && buffer[a] != 0 && buffer[a] != 10; a++) {
int b=buffer[a];
int c=36;
if (47<b && b<58) { // a number
c = b - 48;
} else if (64<b && b<91) { // a big character
c = b - 65 + 10;
} else if (96<b && b<123) { // a small character
c = b - 97 + 10;
} else if (32<b && b<48) { // special character
c = b - 32 + 35;
} else if (57<b && b<65) { // special character
c = b - 57 + 50;
} else if (b==32) { // space
c=63;
} else {
c=56;
}
// (c & 0x7) is the column and (c >> 3) is the row, multiply them with font size
int u = (c & 0x7) * m_iSize;
int v = (c >> 3) * m_iSize;
//cerr << "x " << u << " y " << v << endl;
masked_stretch_blit(m_Texture, backbuffer, u, v, m_iSize, m_iSize,
x + a*realsizeX, y, realsizeX, realsizeY);
}
}
#endif // EM_USE_ALLEGRO
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