Solid and gradients in high color accuracy

This patch updates the internal color precisions of solids and
gradients to 16bit per color. This makes it possible to render
at higher precision on non-premultiplied ARGB32, the RGB30
formats and any other hi-color formats if more are added.

[ChangeLog][QtGui][Painting] Internal precision of solids and gradients
is now up to 16bit per color.

Change-Id: Ieae5468bd6de1f56adfa4cb9fa966faf2ed824fd
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/gui/painting/qdrawhelper_neon.cpp b/src/gui/painting/qdrawhelper_neon.cpp
index 7e12e62151..36e2488a94 100644
--- a/src/gui/painting/qdrawhelper_neon.cpp
+++ b/src/gui/painting/qdrawhelper_neon.cpp
@@ -466,7 +466,7 @@ void qt_blend_rgb32_on_rgb32_neon(uchar *destPixels, int dbpl,
 }
 
 void qt_alphamapblit_quint16_neon(QRasterBuffer *rasterBuffer,
-                                  int x, int y, quint32 color,
+                                  int x, int y, const QRgba64 &color,
                                   const uchar *bitmap,
                                   int mapWidth, int mapHeight, int mapStride,
                                   const QClipData *)
@@ -475,8 +475,9 @@ void qt_alphamapblit_quint16_neon(QRasterBuffer *rasterBuffer,
     const int destStride = rasterBuffer->bytesPerLine() / sizeof(quint16);
 
     uchar *mask = const_cast<uchar *>(bitmap);
+    const uint c = color.toArgb32();
 
-    pixman_composite_over_n_8_0565_asm_neon(mapWidth, mapHeight, dest, destStride, color, 0, mask, mapStride);
+    pixman_composite_over_n_8_0565_asm_neon(mapWidth, mapHeight, dest, destStride, c, 0, mask, mapStride);
 }
 
 extern "C" void blend_8_pixels_rgb16_on_rgb16_neon(quint16 *dst, const quint16 *src, int const_alpha);