external/skia/UnpackedTarball_skia.mk |    2 
 external/skia/macosmetal.patch.0      |   70 +++++++++++++++++++---------------
 vcl/osx/salgdiutils.cxx               |   17 ++------
 3 files changed, 47 insertions(+), 42 deletions(-)

New commits:
commit e4ab68142c7bc4e04ffe429567dda974b86985a7
Author:     Patrick Luby <guibmac...@gmail.com>
AuthorDate: Wed Sep 25 19:32:55 2024 -0400
Commit:     Patrick Luby <guibomac...@gmail.com>
CommitDate: Thu Sep 26 15:13:45 2024 +0200

    tdf#163152 don't convert image's sRGB colorspace
    
    With Skia/Raster or Skia disabled, converting the image's
    colorspace to match the window's colorspace causes more than
    an expected amount of color saturation so let the window's
    underlying CGContext handle any necessary colorspace conversion
    in CGContextDrawImage().
    
    With Skia/Metal, this bug is caused by the CAMetalLayer being
    set to the same colorspace as its matching window. So set the
    CAMetalLayer's colorspace to sRGB so that, like with Skia/Raster
    and Skia disabled, any colorspace conversion is handled when the
    CAMetalLayer is drawn to the window.
    
    Change-Id: Ifa2abe46d34bfcf5acd478fffd346603f869157b
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/173962
    Tested-by: Jenkins
    Reviewed-by: Patrick Luby <guibomac...@gmail.com>

diff --git a/external/skia/UnpackedTarball_skia.mk 
b/external/skia/UnpackedTarball_skia.mk
index b985d8aa9744..bbc51141cda6 100644
--- a/external/skia/UnpackedTarball_skia.mk
+++ b/external/skia/UnpackedTarball_skia.mk
@@ -33,7 +33,7 @@ skia_patches := \
     windows-libraries-system32.patch.1 \
     allow-no-es2restrictions.patch.1 \
     vk_mem_alloc.patch.1 \
-    tdf147342.patch.0 \
+    macosmetal.patch.0 \
     redefinition-of-op.patch.0 \
     0001-Added-missing-include-cstdio.patch \
     fix-SkDebugf-link-error.patch.1 \
diff --git a/external/skia/tdf147342.patch.0 b/external/skia/macosmetal.patch.0
similarity index 84%
rename from external/skia/tdf147342.patch.0
rename to external/skia/macosmetal.patch.0
index 3b50038c07ac..3da9fc693fe9 100644
--- a/external/skia/tdf147342.patch.0
+++ b/external/skia/macosmetal.patch.0
@@ -18,36 +18,6 @@
  
  namespace window_context_factory {
  
---- tools/sk_app/mac/MetalWindowContext_mac.mm 2021-11-25 10:39:27.000000000 
-0500
-+++ tools/sk_app/mac/MetalWindowContext_mac.mm 2023-01-28 14:55:57.000000000 
-0500
-@@ -11,6 +11,8 @@
- #import <Cocoa/Cocoa.h>
- #import <QuartzCore/CAConstraintLayoutManager.h>
- 
-+#include <sal/log.hxx>
-+
- using sk_app::DisplayParams;
- using sk_app::window_context_factory::MacWindowInfo;
- using sk_app::MetalWindowContext;
-@@ -87,6 +89,18 @@
-     fMetalLayer.drawableSize = backingSize;
-     fMetalLayer.contentsScale = backingScaleFactor;
- 
-+    // Related: tdf#147342 Copy layer's colorspace to window's colorspace
-+    // This method is now called when the window's backing properties have
-+    // changed so copy any colorspace changes.
-+    NSColorSpace* cs = fMainView.window.colorSpace;
-+    fMetalLayer.colorspace = cs.CGColorSpace;
-+    // Related tdf#145988 Reset layer's pixel format to 
MTLPixelFormatBGRA8Unorm
-+    // Skia initally sets the layer's pixel format to be BGRA8888 but macOS
-+    // may change the layer's pixel format when a window has moved to a screen
-+    // with 30-bit color depth so reset it back to BGRA8888.
-+    SAL_WARN_IF(fMetalLayer.pixelFormat != MTLPixelFormatBGRA8Unorm, 
"vcl.skia.metal", "CAMetalLayer pixel format is " << fMetalLayer.pixelFormat << 
" but should be " << MTLPixelFormatBGRA8Unorm << " (MTLPixelFormatBGRA8Unorm)");
-+    fMetalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
-+
-     fWidth = backingSize.width;
-     fHeight = backingSize.height;
- }
 --- /dev/null  2023-01-25 09:20:55.000000000 -0500
 +++ tools/sk_app/mac/WindowContextFactory_mac.mm       2023-01-25 
09:21:22.000000000 -0500
 @@ -0,0 +1,57 @@
@@ -108,3 +78,43 @@
 +}
 +
 +}  // namespace sk_app
+--- tools/sk_app/mac/MetalWindowContext_mac.mm 2024-08-31 15:49:57
++++ tools/sk_app/mac/MetalWindowContext_mac.mm 2024-09-25 20:09:32
+@@ -11,6 +11,8 @@
+ #import <Cocoa/Cocoa.h>
+ #import <QuartzCore/CAConstraintLayoutManager.h>
+ 
++#include <sal/log.hxx>
++
+ using sk_app::DisplayParams;
+ using sk_app::window_context_factory::MacWindowInfo;
+ using sk_app::MetalWindowContext;
+@@ -66,8 +68,7 @@
+     fMetalLayer.autoresizingMask = kCALayerHeightSizable | 
kCALayerWidthSizable;
+     fMetalLayer.contentsGravity = kCAGravityTopLeft;
+     fMetalLayer.magnificationFilter = kCAFilterNearest;
+-    NSColorSpace* cs = fMainView.window.colorSpace;
+-    fMetalLayer.colorspace = cs.CGColorSpace;
++    fMetalLayer.colorspace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB);
+ 
+     fMainView.layer = fMetalLayer;
+     fMainView.wantsLayer = YES;
+@@ -86,6 +87,18 @@
+     fMetalLayer.drawableSize = backingSize;
+     fMetalLayer.contentsScale = backingScaleFactor;
+ 
++    // Related: tdf#147342 Copy layer's colorspace to window's colorspace
++    // This method is now called when the window's backing properties have
++    // changed so copy any colorspace changes.
++    fMetalLayer.colorspace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB);
++
++    // Related tdf#145988 Reset layer's pixel format to 
MTLPixelFormatBGRA8Unorm
++    // Skia initally sets the layer's pixel format to be BGRA8888 but macOS
++    // may change the layer's pixel format when a window has moved to a screen
++    // with 30-bit color depth so reset it back to BGRA8888.
++    SAL_WARN_IF(fMetalLayer.pixelFormat != MTLPixelFormatBGRA8Unorm, 
"vcl.skia.metal", "CAMetalLayer pixel format is " << fMetalLayer.pixelFormat << 
" but should be " << MTLPixelFormatBGRA8Unorm << " (MTLPixelFormatBGRA8Unorm)");
++    fMetalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
++
+     fWidth = backingSize.width;
+     fHeight = backingSize.height;
+ }
diff --git a/vcl/osx/salgdiutils.cxx b/vcl/osx/salgdiutils.cxx
index bbdbe64ac79f..867c579332b6 100644
--- a/vcl/osx/salgdiutils.cxx
+++ b/vcl/osx/salgdiutils.cxx
@@ -381,17 +381,12 @@ void AquaSalGraphics::UpdateWindow( NSRect& rRect )
 
         CGContextSetBlendMode(rCGContextHolder.get(), kCGBlendModeCopy);
 
-        NSWindow *pWindow = maShared.mpFrame->getNSWindow();
-        if (pWindow)
-        {
-            CGImageRef displayColorSpaceImage = 
CGImageCreateCopyWithColorSpace(img, [[maShared.mpFrame->getNSWindow() 
colorSpace] CGColorSpace]);
-            CGContextDrawImage(rCGContextHolder.get(), aRect, 
displayColorSpaceImage);
-            CGImageRelease(displayColorSpaceImage);
-        }
-        else
-        {
-            CGContextDrawImage(rCGContextHolder.get(), aRect, img);
-        }
+        // tdf#163152 don't convert image's sRGB colorspace
+        // Converting the image's colorspace to match the window's
+        // colorspace causes more than an expected amount of color
+        // saturation so let the window's underlying CGContext handle
+        // any necessary colorspace conversion in CGContextDrawImage().
+        CGContextDrawImage(rCGContextHolder.get(), aRect, img);
 
         rCGContextHolder.restoreState();
 

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