1 files changed, 152 insertions, 0 deletions
diff --git a/src/ftgl/FTFont/FTTextureFontImpl.h b/src/ftgl/FTFont/FTTextureFontImpl.h
new file mode 100644
index 0000000..c9cf22b
--- /dev/null
+++ b/src/ftgl/FTFont/FTTextureFontImpl.h
@@ -0,0 +1,152 @@
+/*
+ * 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.
+ */
+
+#ifndef __FTTextureFontImpl__
+#define __FTTextureFontImpl__
+
+#include "FTFontImpl.h"
+
+#include "FTVector.h"
+
+class FTTextureGlyph;
+
+class FTTextureFontImpl : public FTFontImpl
+{
+    friend class FTTextureFont;
+
+    protected:
+        FTTextureFontImpl(FTFont *ftFont, const char* fontFilePath);
+
+        FTTextureFontImpl(FTFont *ftFont, const unsigned char *pBufferBytes,
+                          size_t bufferSizeInBytes);
+
+        virtual ~FTTextureFontImpl();
+
+        /**
+         * Set the char size for the current face.
+         *
+         * @param size      the face size in points (1/72 inch)
+         * @param res       the resolution of the target device.
+         * @return          <code>true</code> if size was set correctly
+         */
+        virtual bool FaceSize(const unsigned int size,
+                              const unsigned int res = 72);
+
+        virtual FTPoint Render(const char *s, const int len,
+                               FTPoint position, FTPoint spacing,
+                               int renderMode);
+
+        virtual FTPoint Render(const wchar_t *s, const int len,
+                               FTPoint position, FTPoint spacing,
+                               int renderMode);
+
+    private:
+        /**
+         * Create an FTTextureGlyph object for the base class.
+         */
+        FTGlyph* MakeGlyphImpl(FT_GlyphSlot ftGlyph);
+
+        /**
+         * Get the size of a block of memory required to layout the glyphs
+         *
+         * Calculates a width and height based on the glyph sizes and the
+         * number of glyphs. It over estimates.
+         */
+        inline void CalculateTextureSize();
+
+        /**
+         * Creates a 'blank' OpenGL texture object.
+         *
+         * The format is GL_ALPHA and the params are
+         * GL_TEXTURE_WRAP_S = GL_CLAMP
+         * GL_TEXTURE_WRAP_T = GL_CLAMP
+         * GL_TEXTURE_MAG_FILTER = GL_LINEAR
+         * GL_TEXTURE_MIN_FILTER = GL_LINEAR
+         * Note that mipmapping is NOT used
+         */
+        inline GLuint CreateTexture();
+
+        /**
+         * The maximum texture dimension on this OpenGL implemetation
+         */
+        GLsizei maximumGLTextureSize;
+
+        /**
+         * The minimum texture width required to hold the glyphs
+         */
+        GLsizei textureWidth;
+
+        /**
+         * The minimum texture height required to hold the glyphs
+         */
+        GLsizei textureHeight;
+
+        /**
+         *An array of texture ids
+         */
+        FTVector<GLuint> textureIDList;
+
+        /**
+         * The max height for glyphs in the current font
+         */
+        int glyphHeight;
+
+        /**
+         * The max width for glyphs in the current font
+         */
+        int glyphWidth;
+
+        /**
+         * A value to be added to the height and width to ensure that
+         * glyphs don't overlap in the texture
+         */
+        unsigned int padding;
+
+        /**
+         *
+         */
+        unsigned int numGlyphs;
+
+        /**
+         */
+        unsigned int remGlyphs;
+
+        /**
+         */
+        int xOffset;
+
+        /**
+         */
+        int yOffset;
+
+        /* Internal generic Render() implementation */
+        template <typename T>
+        inline FTPoint RenderI(const T *s, const int len,
+                               FTPoint position, FTPoint spacing, int mode);
+};
+
+#endif // __FTTextureFontImpl__
+