As per the title I can create a sf::Text object and use set font and everything work up until I want to draw the text.
I have added the code below for the class which handles the loading ad storing of Fonts, I have also copied all the loading and getting code into the same class as where I initialise the sf::Text object and it work fine however when I use the FontCache class it doesn't.
The Font is being loaded and retrieved fine.
At the bottom is where the exception is thrown.
Any help on this would be great been trying to fix it for like 12 hours of work time.
FontCache.h
#pragma once
#include <SFML/Graphics/Font.hpp>
#include <unordered_map>
#include <memory>
#include <string>
class FontCache
{
public:
typedef std::shared_ptr<sf::Font> FontPtr;
typedef std::unordered_map<std::string, FontPtr> FontMap;
typedef FontMap::iterator FontMapIterator;
public:
FontCache(unsigned int size = 10);
~FontCache();
bool add(std::string name, std::string file);
void remove(std::string name);
sf::Font& get(std::string name);
void unload();
private:
FontMap resources_;
};
FontCache.cpp
#include "StandardInc.h"
#include "FontCache.h"
#include "PhysFsStream.h"
FontCache::FontCache(unsigned size)
: resources_(size)
{
}
FontCache::~FontCache()
{
unload();
}
bool FontCache::add(std::string name, std::string file)
{
FontMapIterator it = resources_.find(name);
if(it != resources_.end())
{
return true;
}
PhysFsStream stream;
stream.open(file.c_str());
FontPtr newFont = std::make_shared<sf::Font>();
if (!newFont->loadFromStream(stream))
{
printf("Error: Unable to load %s\n", file.c_str());
return false;
}
resources_[name] = std::move(newFont);
printf("Added Font: %s\n", file.c_str());
return true;
}
void FontCache::remove(std::string name)
{
FontMapIterator it = resources_.find(name);
if(it != resources_.end())
{
resources_.erase(it);
}
}
sf::Font& FontCache::get(std::string name)
{
FontMapIterator it = resources_.find(name);
if(it == resources_.end())
add(name, name);
return *resources_[name];
}
void FontCache::unload()
{
resources_.clear();
}
Part of GameScene.hpp
sf::Text buildDetails_ = new sf::Text();
buildDetails_->setFont(fonts_.get("fonts/PTM55FT.ttf"));
buildDetails_->setString("Build 0.0.0");
buildDetails_->setPosition(10, 10);
In the sf::Font::loadGlyph method is where the trouble starts
// Load the glyph corresponding to the code point
if (FT_Load_Char(face, codePoint, FT_LOAD_TARGET_NORMAL | FT_LOAD_FORCE_AUTOHINT) != 0)
return glyph;
In the line
if (static_cast<unsigned long>(stream->seek(offset)) == offset)
is where the Access Violation exception is thrown.
// FreeType callbacks that operate on a sf::InputStream
unsigned long read(FT_Stream rec, unsigned long offset, unsigned char* buffer, unsigned long count)
{
sf::InputStream* stream = static_cast<sf::InputStream*>(rec->descriptor.pointer);
if (static_cast<unsigned long>(stream->seek(offset)) == offset)
{
if (count > 0)
return static_cast<unsigned long>(stream->read(reinterpret_cast<char*>(buffer), count));
else
return 0;
}
else
return count > 0 ? 0 : 1; // error code is 0 if we're reading, or nonzero if we're seeking
}
