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/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 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 AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include "FTGL/ftgl.h"
#include "FTInternals.h"
#include "FTPixmapFontImpl.h"
//
// FTPixmapFont
//
FTPixmapFont::FTPixmapFont(char const *fontFilePath) :
FTFont(new FTPixmapFontImpl(this, fontFilePath))
{}
FTPixmapFont::FTPixmapFont(const unsigned char *pBufferBytes,
size_t bufferSizeInBytes) :
FTFont(new FTPixmapFontImpl(this, pBufferBytes, bufferSizeInBytes))
{}
FTPixmapFont::~FTPixmapFont()
{}
FTGlyph* FTPixmapFont::MakeGlyph(FT_GlyphSlot ftGlyph)
{
return new FTPixmapGlyph(ftGlyph);
}
//
// FTPixmapFontImpl
//
FTPixmapFontImpl::FTPixmapFontImpl(FTFont *ftFont, const char* fontFilePath)
: FTFontImpl(ftFont, fontFilePath)
{
load_flags = FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP;
}
FTPixmapFontImpl::FTPixmapFontImpl(FTFont *ftFont,
const unsigned char *pBufferBytes,
size_t bufferSizeInBytes)
: FTFontImpl(ftFont, pBufferBytes, bufferSizeInBytes)
{
load_flags = FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP;
}
template <typename T>
inline FTPoint FTPixmapFontImpl::RenderI(const T* string, const int len,
FTPoint position, FTPoint spacing,
int renderMode)
{
// Protect GL_TEXTURE_2D and GL_BLEND, glPixelTransferf(), and blending
// functions.
glPushAttrib(GL_ENABLE_BIT | GL_PIXEL_MODE_BIT | GL_COLOR_BUFFER_BIT);
// Protect glPixelStorei() calls (made by FTPixmapGlyphImpl::RenderImpl).
glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_TEXTURE_2D);
GLfloat ftglColour[4];
glGetFloatv(GL_CURRENT_RASTER_COLOR, ftglColour);
glPixelTransferf(GL_RED_SCALE, ftglColour[0]);
glPixelTransferf(GL_GREEN_SCALE, ftglColour[1]);
glPixelTransferf(GL_BLUE_SCALE, ftglColour[2]);
glPixelTransferf(GL_ALPHA_SCALE, ftglColour[3]);
FTPoint tmp = FTFontImpl::Render(string, len,
position, spacing, renderMode);
glPopClientAttrib();
glPopAttrib();
return tmp;
}
FTPoint FTPixmapFontImpl::Render(const char * string, const int len,
FTPoint position, FTPoint spacing,
int renderMode)
{
return RenderI(string, len, position, spacing, renderMode);
}
FTPoint FTPixmapFontImpl::Render(const wchar_t * string, const int len,
FTPoint position, FTPoint spacing,
int renderMode)
{
return RenderI(string, len, position, spacing, renderMode);
}
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