mirror of
https://github.com/love2d/love.git
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Removed the last vestiges of the old, bad font code
This commit is contained in:
Bill Meltsner
@@ -1,201 +0,0 @@
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/**
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* Copyright (c) 2006-2010 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
|
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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||||
* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#include "ImageFont.h"
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#include <common/math.h>
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#include <SDL_opengl.h>
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namespace love
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{
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namespace graphics
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{
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namespace opengl
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{
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ImageFont::ImageFont(Image * image, const std::string& glyphs)
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: Font(0), image(image), glyphs(glyphs)
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{
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image->retain();
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}
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ImageFont::~ImageFont()
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{
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unload();
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image->release();
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}
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void ImageFont::print(std::string text, float x, float y) const
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{
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glPushMatrix();
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glTranslatef(x, y, 0.0f);
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GLuint OpenGLFont = list;
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glListBase(OpenGLFont);
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glCallLists((int)text.length(), GL_UNSIGNED_BYTE, text.c_str());
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glPopMatrix();
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}
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void ImageFont::print(std::string text, float x, float y, float angle, float sx, float sy) const
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{
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glPushMatrix();
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glTranslatef(x, y, 0.0f);
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glRotatef(LOVE_TORAD(angle), 0, 0, 1.0f);
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glScalef(sx, sy, 1.0f);
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GLuint OpenGLFont = list;
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glListBase(OpenGLFont);
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glCallLists((int)text.length(), GL_UNSIGNED_BYTE, text.c_str());
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glPopMatrix();
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}
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void ImageFont::print(char character, float x, float y) const
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{
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glPushMatrix();
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glTranslatef(x, y, 0.0f);
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GLuint OpenGLFont = list;
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glListBase(OpenGLFont);
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glCallList(list + (int)character);
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glPopMatrix();
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}
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bool ImageFont::load()
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{
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return loadVolatile();
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}
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void ImageFont::unload()
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{
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unloadVolatile();
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}
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bool ImageFont::loadVolatile()
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{
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love::image::pixel * pixels = (love::image::pixel *)(image->getData()->getData());
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unsigned imgw = (unsigned)image->getWidth();
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unsigned imgh = (unsigned)image->getHeight();
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unsigned imgs = imgw*imgh;
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// Reading texture data begins
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size = imgh;
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for(unsigned int i = 0; i < MAX_CHARS; i++)
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positions[i] = -1;
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love::image::pixel spacer = pixels[0];
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unsigned num = glyphs.size();
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unsigned start = 0;
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unsigned end = 0;
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unsigned space = 0;
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for(unsigned i = 0; i < num; ++i)
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{
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if(i >= MAX_CHARS)
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break;
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start = end;
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// Finds out where the first character starts
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while(start < imgw && equal(pixels[start], spacer))
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++start;
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if(i > 0)
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spacing[glyphs[i - 1]] = (start > end) ? (start - end) : 0;
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end = start;
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// Find where glyph ends.
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while(end < imgw && !equal(pixels[end], spacer))
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++end;
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if(start >= end)
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break;
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unsigned c = glyphs[i];
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positions[c] = start;
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widths[c] = (end - start);
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}
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// Replace spacer color with an empty pixel
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for(unsigned int i = 0; i < imgs; ++i)
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{
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if(equal(pixels[i], spacer))
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{
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pixels[i].r = 0;
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pixels[i].g = 0;
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pixels[i].b = 0;
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pixels[i].a = 0;
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}
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}
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// Create display lists
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list = glGenLists(MAX_CHARS);
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for(unsigned int i = 0; i < MAX_CHARS; i++)
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{
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glNewList(list + i, GL_COMPILE);
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if(positions[i] != -1)
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{
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Quad::Viewport v;
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v.x = positions[i];
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v.y = 0;
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v.w = widths[i];
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v.h = imgh;
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Quad q(v, imgw, imgh);
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image->drawq(&q, 0, 0, 0, 1, 1, 0, 0);
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glTranslatef((float)widths[i] + ((float)spacing[i] * mSpacing), 0, 0);
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}
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else
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glTranslatef((float)widths[(int)' '], 0, 0); // empty character are replaced with a whitespace
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glEndList();
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}
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return true;
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}
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void ImageFont::unloadVolatile()
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{
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glDeleteLists(list, MAX_CHARS);
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}
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bool ImageFont::equal(const love::image::pixel& a, const love::image::pixel& b)
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{
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return (a.r == b.r && a.g == b.g && a.b == b.b && a.a == b.a);
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}
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int ImageFont::next_p2(int num)
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{
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int powered = 2;
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while(powered < num) powered <<= 1;
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return powered;
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}
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} // opengl
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} // graphics
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} // love
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@@ -1,108 +0,0 @@
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/**
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* Copyright (c) 2006-2010 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
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||||
**/
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#ifndef LOVE_OPENGL_IMAGE_FONT_H
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#define LOVE_OPENGL_IMAGE_FONT_H
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#include <image/ImageData.h>
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#include "Font.h"
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#include "Image.h"
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// STD
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#include <string>
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#include <cstdio>
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namespace love
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{
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namespace graphics
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{
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namespace opengl
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{
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/**
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* A class to handle OpenGL image fonts.
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*
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* @author Michael Enger
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* @date 2008-01-17
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**/
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class ImageFont : public Font
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{
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protected:
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Image * image;
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// List of glyphs.
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std::string glyphs;
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// The position of each character.
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int positions[MAX_CHARS];
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// OpenGL display lists.
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unsigned int list;
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public:
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/**
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* Default constructor.
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*
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* @param file The image file.
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* @param glyphs A list of the characters as they appear in the image.
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**/
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ImageFont(Image * image, const std::string& glyphs);
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/**
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* Calls unload().
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**/
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virtual ~ImageFont();
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// From Font
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virtual void print(std::string text, float x, float y) const;
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virtual void print(std::string text, float x, float y, float angle, float sx, float sy) const;
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virtual void print(char character, float x, float y) const;
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// From Resource.
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bool load();
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void unload();
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// From Volatile.
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bool loadVolatile();
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void unloadVolatile();
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protected:
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/**
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* Checks whether two pixels are equal.
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**/
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bool equal(const love::image::pixel& a, const love::image::pixel& b);
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/**
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* Returns the closest number to num which is a power of two.
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*
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* @param num The number to be 2powered.
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**/
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int next_p2(int num);
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}; // ImageFont
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} // opengl
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} // graphics
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} // love
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#endif // LOVE_OPENGL_IMAGE_FONT_H
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@@ -1,255 +0,0 @@
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/**
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* Copyright (c) 2006-2010 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
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||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
**/
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#include "TrueTypeFont.h"
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#include <SDL_opengl.h>
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#include <common/Exception.h>
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#include <common/math.h>
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#include <math.h>
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#include <iostream>
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using std::string;
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namespace love
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{
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namespace graphics
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{
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namespace opengl
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{
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inline int TrueTypeFont::next_p2(int num)
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{
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int powered = 2;
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while(powered < num) powered <<= 1;
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return powered;
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}
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inline void TrueTypeFont::pushScreenCoordinateMatrix()
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{
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glPushAttrib(GL_TRANSFORM_BIT);
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GLint viewport[4];
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glGetIntegerv(GL_VIEWPORT, viewport);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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gluOrtho2D(viewport[0],viewport[2],viewport[1],viewport[3]);
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glPopAttrib();
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}
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inline void TrueTypeFont::popProjectionMatrix()
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{
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glPushAttrib(GL_TRANSFORM_BIT);
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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glPopAttrib();
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}
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void TrueTypeFont::createList(FT_Face face, unsigned short character)
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{
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if( FT_Load_Glyph(face, FT_Get_Char_Index(face, character), FT_LOAD_DEFAULT) )
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std::cerr << "TrueTypeFont Loading vm->error: FT_Load_Glyph failed." << std::endl;
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FT_Glyph glyph;
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if( FT_Get_Glyph(face->glyph, &glyph) )
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std::cerr << "TrueTypeFont Loading vm->error: FT_Get_Glyph failed." << std::endl;
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FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 1);
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FT_BitmapGlyph bitmap_glyph = (FT_BitmapGlyph)glyph;
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FT_Bitmap& bitmap = bitmap_glyph->bitmap; //just to make things easier
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widths[character] = face->glyph->advance.x >> 6;
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int w = next_p2(bitmap.width);
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int h = next_p2(bitmap.rows);
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if(bitmap.rows > trueHeight)
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trueHeight = bitmap.rows;
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GLubyte* expandedData = new GLubyte[ 2 * w * h];
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for(int j = 0; j < h; j++) for(int i = 0; i < w; i++)
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{
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expandedData[2 * (i + j * w)] = MAX_CHARS-1;
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expandedData[2 * (i + j * w) + 1] = (i >= bitmap.width || j >= bitmap.rows) ? 0 : bitmap.buffer[i + bitmap.width * j];
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}
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glBindTexture(GL_TEXTURE_2D, textures[character]);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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// Rude adds:
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// (You're welcome, Mike.)
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, expandedData);
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delete [] expandedData; //no longer needed
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glNewList(list + character, GL_COMPILE);
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glBindTexture(GL_TEXTURE_2D, textures[character]);
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glPushMatrix();
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glTranslatef((float)bitmap_glyph->left, -(float)bitmap_glyph->top, 0);
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//glTranslatef(0, (float)bitmap_glyph->top-bitmap.rows, 0);
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float x=(float)bitmap.width / (float)w,
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y=(float)bitmap.rows / (float)h;
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glBegin(GL_QUADS);
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glTexCoord2d(0, 0); glVertex2f(0, 0);
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glTexCoord2d(0, y); glVertex2f(0, (float)bitmap.rows);
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glTexCoord2d(x, y); glVertex2f((float)bitmap.width, (float)bitmap.rows);
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glTexCoord2d(x, 0); glVertex2f((float)bitmap.width, 0);
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glEnd();
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glPopMatrix();
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glTranslatef((float)(face->glyph->advance.x >> 6) ,0,0);
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|
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glEndList();
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||||
|
||||
FT_Done_Glyph(glyph);
|
||||
}
|
||||
|
||||
TrueTypeFont::TrueTypeFont(Data * data, int size)
|
||||
: Font(size), data(data), textures(0), list(0)
|
||||
{
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data->retain();
|
||||
}
|
||||
|
||||
TrueTypeFont::~TrueTypeFont()
|
||||
{
|
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unload();
|
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data->release();
|
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}
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|
||||
void TrueTypeFont::print(string text, float x, float y) const
|
||||
{
|
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glPushMatrix();
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glTranslatef(ceil(x), ceil(y), 0.0f); // + getHeight() to make the x,y coordinates the top left corner
|
||||
GLuint TrueTypeFont = list;
|
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glListBase(TrueTypeFont);
|
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glCallLists((int)text.length(), GL_UNSIGNED_BYTE, text.c_str());
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glPopMatrix();
|
||||
}
|
||||
|
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void TrueTypeFont::print(std::string text, float x, float y, float angle, float sx, float sy) const
|
||||
{
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glPushMatrix();
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||||
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glTranslatef(ceil(x), ceil(y), 0.0f);
|
||||
glRotatef(LOVE_TODEG(angle), 0, 0, 1.0f);
|
||||
glScalef(sx, sy, 1.0f);
|
||||
|
||||
GLuint TrueTypeFont = list;
|
||||
glListBase(TrueTypeFont);
|
||||
glCallLists((int)text.length(), GL_UNSIGNED_BYTE, text.c_str());
|
||||
|
||||
glPopMatrix();
|
||||
}
|
||||
|
||||
void TrueTypeFont::print(char character, float x, float y) const
|
||||
{
|
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glPushMatrix();
|
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glTranslatef(ceil(x), ceil(y), 0.0f);
|
||||
GLuint TrueTypeFont = list;
|
||||
glListBase(TrueTypeFont);
|
||||
glCallList(list + (int)character);
|
||||
glPopMatrix();
|
||||
}
|
||||
|
||||
float TrueTypeFont::getHeight() const
|
||||
{
|
||||
return (float)trueHeight;
|
||||
}
|
||||
|
||||
float TrueTypeFont::getLineHeight() const
|
||||
{
|
||||
return Font::getLineHeight() * 1.25f;
|
||||
}
|
||||
|
||||
bool TrueTypeFont::load()
|
||||
{
|
||||
return loadVolatile();
|
||||
}
|
||||
|
||||
void TrueTypeFont::unload()
|
||||
{
|
||||
unloadVolatile();
|
||||
}
|
||||
|
||||
bool TrueTypeFont::loadVolatile()
|
||||
{
|
||||
trueHeight = size;
|
||||
|
||||
|
||||
textures = (unsigned int *)(new GLuint[MAX_CHARS]);
|
||||
for(unsigned int i = 0; i != MAX_CHARS; i++) widths[i] = 0;
|
||||
|
||||
FT_Library library;
|
||||
if( FT_Init_FreeType(&library) ) {
|
||||
std::cerr << "TrueTypeFont Loading error: FT_Init_FreeType failed." << std::endl;
|
||||
throw love::Exception("TrueTypeFont Loading error: FT_Init_FreeType failed.");
|
||||
}
|
||||
FT_Face face;
|
||||
if( FT_New_Memory_Face( library,
|
||||
(const FT_Byte *)data->getData(), /* first byte in memory */
|
||||
data->getSize(), /* size in bytes */
|
||||
0, /* face_index */
|
||||
&face )) {
|
||||
std::cerr << "TrueTypeFont Loading error: FT_New_Face failed (there is probably a problem with your font file)." << std::endl;
|
||||
throw love::Exception("TrueTypeFont Loading error: FT_New_Face failed (there is probably a problem with your font file).");
|
||||
}
|
||||
//FT_Set_Char_Size(face, size << 6, size << 6, 96, 96);
|
||||
FT_Set_Pixel_Sizes(face, size, size);
|
||||
|
||||
list = glGenLists(MAX_CHARS);
|
||||
glGenTextures(MAX_CHARS, (GLuint*)textures);
|
||||
for(unsigned short i = 0; i < MAX_CHARS; i++)
|
||||
createList(face, i);
|
||||
|
||||
FT_Done_Face(face);
|
||||
FT_Done_FreeType(library); //all done
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void TrueTypeFont::unloadVolatile()
|
||||
{
|
||||
if(list != 0)
|
||||
glDeleteLists(list, MAX_CHARS);
|
||||
if(textures != 0)
|
||||
glDeleteTextures(MAX_CHARS, (const GLuint*)textures);
|
||||
|
||||
// Cleanup plz.
|
||||
if(textures != 0)
|
||||
delete [] textures;
|
||||
textures = 0;
|
||||
list = 0;
|
||||
}
|
||||
|
||||
} // opengl
|
||||
} // graphics
|
||||
} // love
|
||||
@@ -1,134 +0,0 @@
|
||||
/**
|
||||
* Copyright (c) 2006-2010 LOVE Development Team
|
||||
*
|
||||
* This software is provided 'as-is', without any express or implied
|
||||
* warranty. In no event will the authors be held liable for any damages
|
||||
* arising from the use of this software.
|
||||
*
|
||||
* Permission is granted to anyone to use this software for any purpose,
|
||||
* including commercial applications, and to alter it and redistribute it
|
||||
* freely, subject to the following restrictions:
|
||||
*
|
||||
* 1. The origin of this software must not be misrepresented; you must not
|
||||
* claim that you wrote the original software. If you use this software
|
||||
* in a product, an acknowledgment in the product documentation would be
|
||||
* appreciated but is not required.
|
||||
* 2. Altered source versions must be plainly marked as such, and must not be
|
||||
* misrepresented as being the original software.
|
||||
* 3. This notice may not be removed or altered from any source distribution.
|
||||
**/
|
||||
|
||||
#ifndef LOVE_GRAPHICS_OPENGL_TRUETYPE_FONT_H
|
||||
#define LOVE_GRAPHICS_OPENGL_TRUETYPE_FONT_H
|
||||
|
||||
// Module
|
||||
#include "Font.h"
|
||||
|
||||
// LOVE
|
||||
#include <common/config.h>
|
||||
#include <common/Data.h>
|
||||
|
||||
// FreeType2
|
||||
#ifdef LOVE_MACOSX
|
||||
#include <freetype/ft2build.h>
|
||||
#else
|
||||
#include <ft2build.h>
|
||||
#endif
|
||||
#include <freetype/freetype.h>
|
||||
#include <freetype/ftglyph.h>
|
||||
#include <freetype/ftoutln.h>
|
||||
#include <freetype/fttrigon.h>
|
||||
|
||||
// STD
|
||||
#include <string>
|
||||
|
||||
namespace love
|
||||
{
|
||||
namespace graphics
|
||||
{
|
||||
namespace opengl
|
||||
{
|
||||
|
||||
/**
|
||||
* A class to handle TrueType fonts. Uses the library FreeType2
|
||||
* (available here: http://www.freetype.org/) and takes use of both
|
||||
* their local documentation and Sven's experience.
|
||||
*
|
||||
* @author Michael Enger (with great help from Sven C. Olsen)
|
||||
* @date 2007-01-15
|
||||
**/
|
||||
class TrueTypeFont : public Font
|
||||
{
|
||||
private:
|
||||
|
||||
Data * data;
|
||||
|
||||
protected:
|
||||
|
||||
unsigned int * textures;
|
||||
unsigned int list;
|
||||
int trueHeight; // the true height of the font
|
||||
|
||||
/**
|
||||
* Returns the closest number to num which is a power of two.
|
||||
*
|
||||
* @param num The number to be 2powered.
|
||||
**/
|
||||
inline int next_p2(int num);
|
||||
|
||||
/**
|
||||
* As stated by Sven: A fairly straight forward function that pushes a projection matrix that will make object world coordinates identical to window coordinates.
|
||||
**/
|
||||
inline void pushScreenCoordinateMatrix();
|
||||
|
||||
/**
|
||||
* Pops the projection matrix without changing the current MatrixMode.
|
||||
**/
|
||||
inline void popProjectionMatrix();
|
||||
|
||||
/**
|
||||
* Creates an OpenGL display list for the character (for speedy execution).
|
||||
*
|
||||
* @param face The FT_Face containing information about the character.
|
||||
* @param character The character in question.
|
||||
**/
|
||||
void createList(FT_Face face, unsigned short character);
|
||||
|
||||
public:
|
||||
/**
|
||||
* Default constructor.
|
||||
*
|
||||
* @param file The file containing the TrueTypeFont data.
|
||||
* @param size The size of the TrueTypeFont.
|
||||
**/
|
||||
TrueTypeFont(Data * data, int size);
|
||||
|
||||
/**
|
||||
* Calls unload().
|
||||
**/
|
||||
virtual ~TrueTypeFont();
|
||||
|
||||
|
||||
// From Font
|
||||
//virtual float getHeight() const;
|
||||
virtual void print(std::string text, float x, float y) const;
|
||||
virtual void print(std::string text, float x, float y, float angle, float sx, float sy) const;
|
||||
virtual void print(char character, float x, float y) const;
|
||||
virtual float getHeight() const;
|
||||
virtual float getLineHeight() const;
|
||||
|
||||
// From Resource.
|
||||
bool load();
|
||||
void unload();
|
||||
|
||||
// From Volatile.
|
||||
bool loadVolatile();
|
||||
void unloadVolatile();
|
||||
|
||||
}; // TrueTypeFont
|
||||
|
||||
} // opengl
|
||||
} // graphics
|
||||
} // love
|
||||
|
||||
#endif // LOVE_GRAPHICS_OPENGL_TRUETYPE_FONT_H
|
||||
Reference in New Issue
Block a user