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authorscuri <scuri>2010-06-21 22:55:10 +0000
committerscuri <scuri>2010-06-21 22:55:10 +0000
commit37a92b86d13e89d0dcec92be6d23ceced29dbc36 (patch)
treefaff61ef668379212b4ed948934533c3f2fe308b /src/ftgl/FTGlyph/FTBufferGlyph.cpp
parenta124216ee05a5d63ea8fcdafcd050ad1fadf0b09 (diff)
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Diffstat (limited to 'src/ftgl/FTGlyph/FTBufferGlyph.cpp')
-rw-r--r--src/ftgl/FTGlyph/FTBufferGlyph.cpp121
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diff --git a/src/ftgl/FTGlyph/FTBufferGlyph.cpp b/src/ftgl/FTGlyph/FTBufferGlyph.cpp
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+++ b/src/ftgl/FTGlyph/FTBufferGlyph.cpp
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+/*
+ * FTGL - OpenGL font library
+ *
+ * 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 "FTBufferGlyphImpl.h"
+
+
+//
+// FTGLBufferGlyph
+//
+
+
+FTBufferGlyph::FTBufferGlyph(FT_GlyphSlot glyph, FTBuffer *buffer) :
+ FTGlyph(new FTBufferGlyphImpl(glyph, buffer))
+{}
+
+
+FTBufferGlyph::~FTBufferGlyph()
+{}
+
+
+const FTPoint& FTBufferGlyph::Render(const FTPoint& pen, int renderMode)
+{
+ FTBufferGlyphImpl *myimpl = dynamic_cast<FTBufferGlyphImpl *>(impl);
+ return myimpl->RenderImpl(pen, renderMode);
+}
+
+
+//
+// FTGLBufferGlyphImpl
+//
+
+
+FTBufferGlyphImpl::FTBufferGlyphImpl(FT_GlyphSlot glyph, FTBuffer *p)
+: FTGlyphImpl(glyph),
+ has_bitmap(false),
+ buffer(p)
+{
+ err = FT_Render_Glyph(glyph, FT_RENDER_MODE_NORMAL);
+ if(err || glyph->format != ft_glyph_format_bitmap)
+ {
+ return;
+ }
+
+ bitmap = glyph->bitmap;
+ pixels = new unsigned char[bitmap.pitch * bitmap.rows];
+ memcpy(pixels, bitmap.buffer, bitmap.pitch * bitmap.rows);
+
+ if(bitmap.width && bitmap.rows)
+ {
+ has_bitmap = true;
+ corner = FTPoint(glyph->bitmap_left, glyph->bitmap_top);
+ }
+}
+
+
+FTBufferGlyphImpl::~FTBufferGlyphImpl()
+{
+ delete[] pixels;
+}
+
+
+const FTPoint& FTBufferGlyphImpl::RenderImpl(const FTPoint& pen, int renderMode)
+{
+ if(has_bitmap)
+ {
+ FTPoint pos(buffer->Pos() + pen + corner);
+ int dx = (int)(pos.Xf() + 0.5f);
+ int dy = buffer->Height() - (int)(pos.Yf() + 0.5f);
+ unsigned char * dest = buffer->Pixels() + dx + dy * buffer->Width();
+
+ for(int y = 0; y < bitmap.rows; y++)
+ {
+ // FIXME: change the loop bounds instead of doing this test
+ if(y + dy < 0 || y + dy >= buffer->Height()) continue;
+
+ for(int x = 0; x < bitmap.width; x++)
+ {
+ if(x + dx < 0 || x + dx >= buffer->Width()) continue;
+
+ unsigned char p = pixels[y * bitmap.pitch + x];
+
+ if(p)
+ {
+ dest[y * buffer->Width() + x] = p;
+ }
+ }
+ }
+ }
+
+ return advance;
+}
+