1 files changed, 70 insertions, 0 deletions
diff --git a/external/skia/windows-text-gamma.patch.0 b/external/skia/windows-text-gamma.patch.0
new file mode 100644
index 000000000..624636b7d
--- /dev/null
+++ b/external/skia/windows-text-gamma.patch.0
@@ -0,0 +1,70 @@
+--- ./src/ports/SkFontHost_win.cpp.sav	2020-03-18 10:26:52.470184300 +0100
++++ ./src/ports/SkFontHost_win.cpp	2020-03-18 12:08:04.598406700 +0100
+@@ -1215,17 +1215,23 @@
+         // since the caller may require A8 for maskfilters, we can't check for BW
+         // ... until we have the caller tell us that explicitly
+         const SkGdiRGB* src = (const SkGdiRGB*)bits;
++#if defined(SK_GAMMA_APPLY_TO_A8)
+         if (fPreBlend.isApplicable()) {
+             RGBToA8<true>(src, srcRB, glyph, fPreBlend.fG);
+-        } else {
++        } else
++#endif
++        {
+             RGBToA8<false>(src, srcRB, glyph, fPreBlend.fG);
+         }
+     } else {    // LCD16
+         const SkGdiRGB* src = (const SkGdiRGB*)bits;
+         SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat);
++#if defined(SK_GAMMA_APPLY_TO_A8)
+         if (fPreBlend.isApplicable()) {
+             RGBToLcd16<true>(src, srcRB, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+-        } else {
++        } else
++#endif
++        {
+             RGBToLcd16<false>(src, srcRB, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+         }
+     }
+--- ./src/ports/SkScalerContext_win_dw.cpp
++++ ./src/ports/SkScalerContext_win_dw.cpp
+@@ -1132,27 +1132,36 @@ void SkScalerContext_DW::generateImage(const SkGlyph& glyph) {
+         BilevelToBW(src, glyph);
+     } else if (!isLCD(fRec)) {
+         if (textureType == DWRITE_TEXTURE_ALIASED_1x1) {
++#if defined(SK_GAMMA_APPLY_TO_A8)
+             if (fPreBlend.isApplicable()) {
+                 GrayscaleToA8<true>(src, glyph, fPreBlend.fG);
+-            } else {
++            } else
++#endif
++            {
+                 GrayscaleToA8<false>(src, glyph, fPreBlend.fG);
+             }
+         } else {
++#if defined(SK_GAMMA_APPLY_TO_A8)
+             if (fPreBlend.isApplicable()) {
+                 RGBToA8<true>(src, glyph, fPreBlend.fG);
+-            } else {
++            } else
++#endif
++            {
+                 RGBToA8<false>(src, glyph, fPreBlend.fG);
+             }
+         }
+     } else {
+         SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat);
++#if defined(SK_GAMMA_APPLY_TO_A8)
+         if (fPreBlend.isApplicable()) {
+             if (fRec.fFlags & SkScalerContext::kLCD_BGROrder_Flag) {
+                 RGBToLcd16<true, false>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+             } else {
+                 RGBToLcd16<true, true>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+             }
+-        } else {
++        } else
++#endif
++        {
+             if (fRec.fFlags & SkScalerContext::kLCD_BGROrder_Flag) {
+                 RGBToLcd16<false, false>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+             } else {