void Font::drawCachedGlyphBitmap(CachedGlyphInfo* glyph, int x, int y, uint8_t* bitmap,
uint32_t bitmapWidth, uint32_t bitmapHeight, Rect* bounds, const float* pos) {
int dstX = x + glyph->mBitmapLeft;
int dstY = y + glyph->mBitmapTop;
CacheTexture* cacheTexture = glyph->mCacheTexture;
PixelBuffer* pixelBuffer = cacheTexture->getPixelBuffer();
uint32_t formatSize = PixelBuffer::formatSize(pixelBuffer->getFormat());
uint32_t alpha_channel_offset = PixelBuffer::formatAlphaOffset(pixelBuffer->getFormat());
uint32_t cacheWidth = cacheTexture->getWidth();
uint32_t srcStride = formatSize * cacheWidth;
uint32_t startY = glyph->mStartY * srcStride;
uint32_t endY = startY + (glyph->mBitmapHeight * srcStride);
const uint8_t* cacheBuffer = pixelBuffer->map();
for (uint32_t cacheY = startY, bitmapY = dstY * bitmapWidth; cacheY < endY;
cacheY += srcStride, bitmapY += bitmapWidth) {
if (formatSize == 1) {
memcpy(&bitmap[bitmapY + dstX], &cacheBuffer[cacheY + glyph->mStartX], glyph->mBitmapWidth);
} else {
for (uint32_t i = 0; i < glyph->mBitmapWidth; ++i) {
bitmap[bitmapY + dstX + i] = cacheBuffer[cacheY + (glyph->mStartX + i)*formatSize + alpha_channel_offset];
}
}
}
}
void Font::drawCachedGlyphBitmap(CachedGlyphInfo* glyph, int x, int y, uint8_t* bitmap,
uint32_t bitmapWidth, uint32_t bitmapHeight, Rect* bounds, const float* pos) {
int dstX = x + glyph->mBitmapLeft;
int dstY = y + glyph->mBitmapTop;
CacheTexture* cacheTexture = glyph->mCacheTexture;
uint32_t cacheWidth = cacheTexture->getWidth();
uint32_t startY = glyph->mStartY * cacheWidth;
uint32_t endY = startY + (glyph->mBitmapHeight * cacheWidth);
PixelBuffer* pixelBuffer = cacheTexture->getPixelBuffer();
const uint8_t* cacheBuffer = pixelBuffer->map();
for (uint32_t cacheY = startY, bitmapY = dstY * bitmapWidth; cacheY < endY;
cacheY += cacheWidth, bitmapY += bitmapWidth) {
memcpy(&bitmap[bitmapY + dstX], &cacheBuffer[cacheY + glyph->mStartX], glyph->mBitmapWidth);
}
}