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);
}
}
void Font::drawCachedGlyphBitmap(CachedGlyphInfo* glyph, int x, int y,
uint8_t* bitmap, uint32_t bitmapW, uint32_t bitmapH, Rect* bounds, const float* pos) {
int nPenX = x + glyph->mBitmapLeft;
int nPenY = y + glyph->mBitmapTop;
/** Mediatek: Fix incorrect shadow for long text **/
if ((uint32_t)nPenX >= bitmapW || (uint32_t)nPenY >= bitmapH) {
#if DEBUG_FONT_RENDERER
if (g_HWUI_debug_font_renderer) {
ALOGE("nPen(%d, %d) exceed bitmap size %dx%d", nPenX, nPenY, bitmapW, bitmapH);
}
#endif
return;
}
uint32_t endX = glyph->mStartX + glyph->mBitmapWidth;
uint32_t endY = glyph->mStartY + glyph->mBitmapHeight;
CacheTexture* cacheTexture = glyph->mCacheTexture;
uint32_t cacheWidth = cacheTexture->getWidth();
const uint8_t* cacheBuffer = cacheTexture->getTexture();
uint32_t cacheX = 0, cacheY = 0;
int32_t bX = 0, bY = 0;
for (cacheX = glyph->mStartX, bX = nPenX; cacheX < endX; cacheX++, bX++) {
for (cacheY = glyph->mStartY, bY = nPenY; cacheY < endY; cacheY++, bY++) {
if (bX < 0 || bY < 0 || bX >= (int32_t) bitmapW || bY >= (int32_t) bitmapH) {
#if DEBUG_FONT_RENDERER
if (g_HWUI_debug_font_renderer) {
ALOGE("Skipping invalid index");
}
#endif
continue;
}
uint8_t tempCol = cacheBuffer[cacheY * cacheWidth + cacheX];
bitmap[bY * bitmapW + bX] = tempCol;
}
}
}