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Viewing changes to extern/bFTGL/src/FTTextureGlyph.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Cyril Brulebois
  • Date: 2008-08-08 02:45:40 UTC
  • mfrom: (12.1.14 intrepid)
  • Revision ID: james.westby@ubuntu.com-20080808024540-kkjp7ekfivzhuw3l
Tags: 2.46+dfsg-4
http://bugs.debian.org/492280
* Fix python syntax warning in import_dxf.py, which led to nasty output
  in installation/upgrade logs during byte-compilation, using a patch
  provided by the script author (Closes: #492280):
   - debian/patches/45_fix_python_syntax_warning

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extern/bFTGL/src/FTTextureGlyph.cpp
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#include    "FTTextureGlyph.h"
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FTTextureGlyph::FTTextureGlyph( FT_GlyphSlot glyph, int id, int xOffset, int yOffset, GLsizei width, GLsizei height)
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:   FTGlyph( glyph),
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    destWidth(0),
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    destHeight(0),
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    glTextureID(id),
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    activeTextureID(0)
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{
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    err = FT_Render_Glyph( glyph, FT_RENDER_MODE_NORMAL);
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    if( err || glyph->format != ft_glyph_format_bitmap)
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    {
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        return;
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    }
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    FT_Bitmap      bitmap = glyph->bitmap;
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    destWidth  = bitmap.width;
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    destHeight = bitmap.rows;
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    if( destWidth && destHeight)
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    {
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        glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT);
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        glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE);
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        glPixelStorei( GL_UNPACK_ROW_LENGTH, 0);
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        glPixelStorei( GL_UNPACK_ALIGNMENT, 1);
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        glBindTexture( GL_TEXTURE_2D, glTextureID);
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        glTexSubImage2D( GL_TEXTURE_2D, 0, xOffset, yOffset, destWidth, destHeight, GL_ALPHA, GL_UNSIGNED_BYTE, bitmap.buffer);
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        glPopClientAttrib();
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    }
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//      0    
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//      +----+
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//      |    |
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//      |    |
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//      |    |
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//      +----+
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//           1
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    uv[0].x = static_cast<float>(xOffset) / static_cast<float>(width);
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    uv[0].y = static_cast<float>(yOffset) / static_cast<float>(height);
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    uv[1].x = static_cast<float>( xOffset + destWidth) / static_cast<float>(width);
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    uv[1].y = static_cast<float>( yOffset + destHeight) / static_cast<float>(height);
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    pos.x = glyph->bitmap_left;
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    pos.y = glyph->bitmap_top;
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}
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FTTextureGlyph::~FTTextureGlyph()
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{}
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#include <math.h>
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float FTTextureGlyph::Render( const FTPoint& pen)
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{
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        float dx;
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    glGetIntegerv( GL_TEXTURE_2D_BINDING_EXT, &activeTextureID);
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    if( activeTextureID != glTextureID)
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    {
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        glBindTexture( GL_TEXTURE_2D, (GLuint)glTextureID);
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    }
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        dx= floor( (pen.x + pos.x ) );
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    glBegin( GL_QUADS);
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        glTexCoord2f( uv[0].x, uv[0].y);
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        glVertex2f( dx,             pen.y + pos.y);
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        glTexCoord2f( uv[0].x, uv[1].y);
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        glVertex2f( dx,             pen.y + pos.y - destHeight);
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        glTexCoord2f( uv[1].x, uv[1].y);
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        glVertex2f( dx + destWidth, pen.y + pos.y - destHeight);
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        glTexCoord2f( uv[1].x, uv[0].y);
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        glVertex2f( dx + destWidth, pen.y + pos.y);
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    glEnd();
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    return advance;
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}
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