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; } } }