GlyphData *BMFontRasterizer::getGlyphData(uint32 glyph) const
{
auto it = characters.find(glyph);
// Return an empty GlyphData if we don't have the glyph character.
if (it == characters.end())
return new GlyphData(glyph, GlyphMetrics(), GlyphData::FORMAT_RGBA);
const BMFontCharacter &c = it->second;
GlyphData *g = new GlyphData(glyph, c.metrics, GlyphData::FORMAT_RGBA);
const auto &imagepair = images.find(c.page);
if (imagepair == images.end())
{
g->release();
return new GlyphData(glyph, GlyphMetrics(), GlyphData::FORMAT_RGBA);
}
image::ImageData *imagedata = imagepair->second.get();
image::pixel *pixels = (image::pixel *) g->getData();
const image::pixel *ipixels = (const image::pixel *) imagedata->getData();
love::thread::Lock lock(imagedata->getMutex());
// Copy the subsection of the texture from the ImageData to the GlyphData.
for (int y = 0; y < c.metrics.height; y++)
{
size_t idindex = (c.y + y) * imagedata->getWidth() + c.x;
memcpy(&pixels[y * c.metrics.width], &ipixels[idindex], sizeof(image::pixel) * c.metrics.width);
}
return g;
}
GlyphData * ImageRasterizer::getGlyphData(unsigned short glyph) const
{
GlyphMetrics gm;
gm.height = metrics.height;
gm.width = widths[glyph];
gm.advance = spacing[glyph] + widths[glyph];
gm.bearingX = 0;
gm.bearingY = 0;
GlyphData * g = new GlyphData(glyph, gm, GlyphData::FORMAT_RGBA);
if (gm.width == 0) return g;
unsigned char * gd = (unsigned char*)g->getData();
love::image::pixel * pixels = (love::image::pixel *)(imageData->getData());
for (unsigned int i = 0; i < widths[glyph]*getHeight(); i++) {
love::image::pixel p = pixels[ positions[glyph] + (i % widths[glyph]) + (imageData->getWidth() * (i / widths[glyph])) ];
gd[i*4] = p.r;
gd[i*4+1] = p.g;
gd[i*4+2] = p.b;
gd[i*4+3] = p.a;
}
return g;
}
GlyphData *ImageRasterizer::getGlyphData(uint32 glyph) const
{
GlyphMetrics gm = {};
// Set relevant glyph metrics if the glyph is in this ImageFont
std::map<uint32, ImageGlyphData>::const_iterator it = imageGlyphs.find(glyph);
if (it != imageGlyphs.end())
{
gm.width = it->second.width;
gm.advance = it->second.width + extraSpacing;
}
gm.height = metrics.height;
GlyphData *g = new GlyphData(glyph, gm, GlyphData::FORMAT_RGBA);
if (gm.width == 0)
return g;
// We don't want another thread modifying our ImageData mid-copy.
love::thread::Lock lock(imageData->getMutex());
love::image::pixel *gdpixels = (love::image::pixel *) g->getData();
love::image::pixel *imagepixels = (love::image::pixel *) imageData->getData();
// copy glyph pixels from imagedata to glyphdata
for (int i = 0; i < g->getWidth() * g->getHeight(); i++)
{
love::image::pixel p = imagepixels[it->second.x + (i % gm.width) + (imageData->getWidth() * (i / gm.width))];
// Use transparency instead of the spacer color
if (equal(p, spacer))
gdpixels[i].r = gdpixels[i].g = gdpixels[i].b = gdpixels[i].a = 0;
else
gdpixels[i] = p;
}
return g;
}
