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macos: assume monitor colorspace when drawing

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When using software rendering w/ cairo, assume we're drawing in
the best-monitor's colorspace rather than RGB to avoid colorspace
conversions on every frame.
This commit is contained in:
Christian Hergert 2022-02-04 09:46:10 -08:00
parent 473aceea68
commit 6b85d501f0
1 changed files with 4 additions and 1 deletions
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5
gdk/macos/GdkMacosCairoView.c
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@ -28,6 +28,7 @@
#import "GdkMacosCairoView.h"
#import "GdkMacosCairoSubview.h"
#include "gdkmacosmonitor-private.h"
#include "gdkmacossurface-private.h"
@implementation GdkMacosCairoView
@ -78,6 +79,7 @@ release_surface_provider (void *info,
CGColorSpaceRef rgb;
cairo_format_t format;
CGBitmapInfo bitmap = kCGBitmapByteOrder32Host;
GdkMonitor *monitor;
guint8 *framebuffer;
size_t width;
size_t height;
@ -92,7 +94,8 @@ release_surface_provider (void *info,
rowstride = cairo_image_surface_get_stride (cairoSurface);
width = cairo_image_surface_get_width (cairoSurface);
height = cairo_image_surface_get_height (cairoSurface);
rgb = CGColorSpaceCreateDeviceRGB ();
monitor = _gdk_macos_surface_get_best_monitor ([self gdkSurface]);
rgb = _gdk_macos_monitor_copy_colorspace (GDK_MACOS_MONITOR (monitor));
/* Assert that our image surface was created correctly with
* 16-byte aligned pointers and strides. This is needed to