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Diffstat (limited to 'src/ftgl/FTFont/FTPixmapFont.cpp')
-rw-r--r-- | src/ftgl/FTFont/FTPixmapFont.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/ftgl/FTFont/FTPixmapFont.cpp b/src/ftgl/FTFont/FTPixmapFont.cpp new file mode 100644 index 0000000..5638ac8 --- /dev/null +++ b/src/ftgl/FTFont/FTPixmapFont.cpp @@ -0,0 +1,131 @@ +/* + * 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); +} + |