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1 files changed, 121 insertions, 0 deletions

diff --git a/src/ftgl/FTGlyph/FTBufferGlyph.cpp b/src/ftgl/FTGlyph/FTBufferGlyph.cpp
new file mode 100644
index 0000000..7a78b0e
--- /dev/null
+++ b/src/ftgl/FTGlyph/FTBufferGlyph.cpp
@@ -0,0 +1,121 @@
+/*
+ * 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;
+}
+