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Drastically improve the font scaling quality (issue #321)

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Note that it isn't perfect yet, but a lot better.
This commit is contained in:
Bart van Strien
2012-01-08 14:11:40 +01:00
parent 1509403ca7
commit 5fa0a4cfa3
1 changed files with 7 additions and 6 deletions
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src/modules/graphics/opengl/Font.cpp
+7 -6
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@@ -57,7 +57,8 @@ namespace opengl
void Font::createTexture()
{
texture_x = texture_y = rowHeight = 0;
texture_x = texture_y = 1;
rowHeight = 0;
GLuint t;
glGenTextures(1, &t);
textures.push_back(t);
@@ -92,12 +93,12 @@ namespace opengl
}
love::font::GlyphData *gd = rasterizer->getGlyphData(glyph);
g->spacing = gd->getAdvance();
int w = gd->getWidth();
int h = gd->getHeight();
int w = gd->getWidth()+1;
int h = gd->getHeight()+1;
if (texture_x + w > TEXTURE_WIDTH)
{ // out of space - new row!
texture_x = 0;
texture_y += rowHeight;
texture_x = 1;
texture_y += rowHeight+1;
rowHeight = 0;
}
if (texture_y + h > TEXTURE_HEIGHT)
@@ -106,7 +107,7 @@ namespace opengl
}
GLuint t = textures.back();
glBindTexture(GL_TEXTURE_2D, t);
glTexSubImage2D(GL_TEXTURE_2D, 0, texture_x, texture_y, w, h, (type == FONT_TRUETYPE ? GL_LUMINANCE_ALPHA : GL_RGBA), GL_UNSIGNED_BYTE, gd->getData());
glTexSubImage2D(GL_TEXTURE_2D, 0, texture_x, texture_y, w-1, h-1, (type == FONT_TRUETYPE ? GL_LUMINANCE_ALPHA : GL_RGBA), GL_UNSIGNED_BYTE, gd->getData());
Quad::Viewport v;
v.x = (float) texture_x;