QtGui: fix build with GCC 13's support for FP16

Conversion must be explicit from float, but doesn't need to be from int.

qimage.cpp:1915:33: error: converting to ‘qfloat16::NativeType’ {aka ‘_Float16’} from ‘float’ with greater conversion rank [-Werror]

Pick-to: 6.5
Change-Id: Ide4dbd0777a44ed0870efffd17390a0e86f1fd7e
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/painting/qpixellayout.cpp b/src/gui/painting/qpixellayout.cpp
index 871fd1014d..b196f48617 100644
--- a/src/gui/painting/qpixellayout.cpp
+++ b/src/gui/painting/qpixellayout.cpp
@@ -2226,7 +2226,7 @@ static void QT_FASTCALL storeRGBX16FFromRGBA32F(uchar *dest, const QRgbaFloat32
     QRgbaFloat16 *d = reinterpret_cast<QRgbaFloat16 *>(dest) + index;
     for (int i = 0; i < count; ++i) {
         auto s = src[i].unpremultiplied();
-        d[i] = QRgbaFloat16{ s.r, s.g, s.b, 1.0f };
+        d[i] = QRgbaFloat16{ qfloat16(s.r), qfloat16(s.g), qfloat16(s.b), qfloat16(1.0f) };
     }
 }
 
@@ -2236,7 +2236,7 @@ static void QT_FASTCALL storeRGBA16FFromRGBA32F(uchar *dest, const QRgbaFloat32
     QRgbaFloat16 *d = reinterpret_cast<QRgbaFloat16 *>(dest) + index;
     for (int i = 0; i < count; ++i) {
         auto s = src[i].unpremultiplied();
-        d[i] = QRgbaFloat16{ s.r, s.g, s.b, s.a };
+        d[i] = QRgbaFloat16{ qfloat16(s.r), qfloat16(s.g), qfloat16(s.b), qfloat16(s.a) };
     }
 }