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Diffstat (limited to 'src/ftgl/FTGlyph/FTBitmapGlyph.cpp')
-rw-r--r-- | src/ftgl/FTGlyph/FTBitmapGlyph.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/ftgl/FTGlyph/FTBitmapGlyph.cpp b/src/ftgl/FTGlyph/FTBitmapGlyph.cpp new file mode 100644 index 0000000..989c890 --- /dev/null +++ b/src/ftgl/FTGlyph/FTBitmapGlyph.cpp @@ -0,0 +1,128 @@ +/* + * 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 <string> + +#include "FTGL/ftgl.h" + +#include "FTInternals.h" +#include "FTBitmapGlyphImpl.h" + + +// +// FTGLBitmapGlyph +// + + +FTBitmapGlyph::FTBitmapGlyph(FT_GlyphSlot glyph) : + FTGlyph(new FTBitmapGlyphImpl(glyph)) +{} + + +FTBitmapGlyph::~FTBitmapGlyph() +{} + + +const FTPoint& FTBitmapGlyph::Render(const FTPoint& pen, int renderMode) +{ + FTBitmapGlyphImpl *myimpl = dynamic_cast<FTBitmapGlyphImpl *>(impl); + return myimpl->RenderImpl(pen, renderMode); +} + + +// +// FTGLBitmapGlyphImpl +// + + +FTBitmapGlyphImpl::FTBitmapGlyphImpl(FT_GlyphSlot glyph) +: FTGlyphImpl(glyph), + destWidth(0), + destHeight(0), + data(0) +{ + err = FT_Render_Glyph(glyph, FT_RENDER_MODE_MONO); + if(err || ft_glyph_format_bitmap != glyph->format) + { + return; + } + + FT_Bitmap bitmap = glyph->bitmap; + + unsigned int srcWidth = bitmap.width; + unsigned int srcHeight = bitmap.rows; + unsigned int srcPitch = bitmap.pitch; + + destWidth = srcWidth; + destHeight = srcHeight; + destPitch = srcPitch; + + if(destWidth && destHeight) + { + data = new unsigned char[destPitch * destHeight]; + unsigned char* dest = data + ((destHeight - 1) * destPitch); + + unsigned char* src = bitmap.buffer; + + for(unsigned int y = 0; y < srcHeight; ++y) + { + memcpy(dest, src, srcPitch); + dest -= destPitch; + src += srcPitch; + } + } + + pos = FTPoint(glyph->bitmap_left, static_cast<int>(srcHeight) - glyph->bitmap_top, 0.0); +} + + +FTBitmapGlyphImpl::~FTBitmapGlyphImpl() +{ + delete [] data; +} + + +const FTPoint& FTBitmapGlyphImpl::RenderImpl(const FTPoint& pen, int renderMode) +{ + if(data) + { + float dx, dy; + + dx = pen.Xf() + pos.Xf(); + dy = pen.Yf() - pos.Yf(); + + glBitmap(0, 0, 0.0f, 0.0f, dx, dy, (const GLubyte*)0); + glPixelStorei(GL_UNPACK_ROW_LENGTH, destPitch * 8); + glBitmap(destWidth, destHeight, 0.0f, 0.0, 0.0, 0.0, + (const GLubyte*)data); + glBitmap(0, 0, 0.0f, 0.0f, -dx, -dy, (const GLubyte*)0); + } + + return advance; +} + |