From 99dbb3eed50f1b89d23604916cee6de965e1f4cb Mon Sep 17 00:00:00 2001 From: tobrun Date: Mon, 23 Mar 2020 15:31:57 +0100 Subject: [android] - use RGB values instead of alpha values for local glyph generation --- platform/android/src/text/local_glyph_rasterizer.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/platform/android/src/text/local_glyph_rasterizer.cpp b/platform/android/src/text/local_glyph_rasterizer.cpp index 0627eb109e..c65c3ae439 100644 --- a/platform/android/src/text/local_glyph_rasterizer.cpp +++ b/platform/android/src/text/local_glyph_rasterizer.cpp @@ -120,7 +120,9 @@ Glyph LocalGlyphRasterizer::rasterizeGlyph(const FontStack& fontStack, GlyphID g // Copy alpha values from RGBA bitmap into the AlphaImage output fixedMetrics.bitmap = AlphaImage(size); for (uint32_t i = 0; i < size.width * size.height; i++) { - fixedMetrics.bitmap.data[i] = rgbaBitmap.data[4 * i + 3]; + fixedMetrics.bitmap.data[i] = + 0xff - round(0.2126 * rgbaBitmap.data[4 * i] + 0.7152 * rgbaBitmap.data[4 * i + 1] + + 0.0722 * rgbaBitmap.data[4 * i + 2]); } return fixedMetrics; -- cgit v1.2.1