mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
72 lines
3.5 KiB
Diff
72 lines
3.5 KiB
Diff
From: Robert O'Callahan <robert@ocallahan.org>
|
|
Bug 579885. Part 4: Paint opaque surfaces using kPrivateCGCompositeCopy when possible. r=jrmuizel,a=blocking
|
|
|
|
diff --git a/gfx/cairo/cairo/src/cairo-quartz-surface.c b/gfx/cairo/cairo/src/cairo-quartz-surface.c
|
|
--- a/gfx/cairo/cairo/src/cairo-quartz-surface.c
|
|
+++ b/gfx/cairo/cairo/src/cairo-quartz-surface.c
|
|
@@ -122,16 +122,17 @@ static void (*CGContextClipToMaskPtr) (C
|
|
static void (*CGContextDrawTiledImagePtr) (CGContextRef, CGRect, CGImageRef) = NULL;
|
|
static unsigned int (*CGContextGetTypePtr) (CGContextRef) = NULL;
|
|
static void (*CGContextSetShouldAntialiasFontsPtr) (CGContextRef, bool) = NULL;
|
|
static bool (*CGContextGetShouldAntialiasFontsPtr) (CGContextRef) = NULL;
|
|
static bool (*CGContextGetShouldSmoothFontsPtr) (CGContextRef) = NULL;
|
|
static void (*CGContextSetAllowsFontSmoothingPtr) (CGContextRef, bool) = NULL;
|
|
static bool (*CGContextGetAllowsFontSmoothingPtr) (CGContextRef) = NULL;
|
|
static void (*CGContextReplacePathWithClipPathPtr) (CGContextRef) = NULL;
|
|
+static CGFloat (*CGContextGetAlphaPtr) (CGContextRef) = NULL;
|
|
|
|
static SInt32 _cairo_quartz_osx_version = 0x0;
|
|
|
|
static cairo_bool_t _cairo_quartz_symbol_lookup_done = FALSE;
|
|
|
|
/*
|
|
* Utility functions
|
|
*/
|
|
@@ -157,16 +158,17 @@ static void quartz_ensure_symbols(void)
|
|
CGContextDrawTiledImagePtr = dlsym(RTLD_DEFAULT, "CGContextDrawTiledImage");
|
|
CGContextGetTypePtr = dlsym(RTLD_DEFAULT, "CGContextGetType");
|
|
CGContextSetShouldAntialiasFontsPtr = dlsym(RTLD_DEFAULT, "CGContextSetShouldAntialiasFonts");
|
|
CGContextGetShouldAntialiasFontsPtr = dlsym(RTLD_DEFAULT, "CGContextGetShouldAntialiasFonts");
|
|
CGContextGetShouldSmoothFontsPtr = dlsym(RTLD_DEFAULT, "CGContextGetShouldSmoothFonts");
|
|
CGContextReplacePathWithClipPathPtr = dlsym(RTLD_DEFAULT, "CGContextReplacePathWithClipPath");
|
|
CGContextGetAllowsFontSmoothingPtr = dlsym(RTLD_DEFAULT, "CGContextGetAllowsFontSmoothing");
|
|
CGContextSetAllowsFontSmoothingPtr = dlsym(RTLD_DEFAULT, "CGContextSetAllowsFontSmoothing");
|
|
+ CGContextGetAlphaPtr = dlsym(RTLD_DEFAULT, "CGContextGetAlpha");
|
|
|
|
if (Gestalt(gestaltSystemVersion, &_cairo_quartz_osx_version) != noErr) {
|
|
// assume 10.4
|
|
_cairo_quartz_osx_version = 0x1040;
|
|
}
|
|
|
|
_cairo_quartz_symbol_lookup_done = TRUE;
|
|
}
|
|
@@ -1698,16 +1700,28 @@ _cairo_quartz_setup_state (cairo_quartz_
|
|
|
|
if (source->type == CAIRO_PATTERN_TYPE_RADIAL) {
|
|
const cairo_radial_pattern_t *rpat = (const cairo_radial_pattern_t *)source;
|
|
_cairo_quartz_setup_radial_source (surface, rpat, extents, &state);
|
|
return state;
|
|
}
|
|
|
|
if (source->type == CAIRO_PATTERN_TYPE_SURFACE) {
|
|
+ if (op == CAIRO_OPERATOR_OVER && _cairo_pattern_is_opaque (source) &&
|
|
+ CGContextGetAlphaPtr &&
|
|
+ CGContextGetAlphaPtr (surface->cgContext) == 1.0) {
|
|
+ // Quartz won't touch pixels outside the bounds of the
|
|
+ // source surface, so we can just go ahead and use Copy here
|
|
+ // to accelerate things.
|
|
+ // Quartz won't necessarily be able to do this optimization internally;
|
|
+ // for CGLayer surfaces, we can know all the pixels are opaque
|
|
+ // (because it's CONTENT_COLOR), but Quartz won't know.
|
|
+ CGContextSetCompositeOperation (context, kPrivateCGCompositeCopy);
|
|
+ }
|
|
+
|
|
const cairo_surface_pattern_t *spat = (const cairo_surface_pattern_t *) source;
|
|
_cairo_quartz_setup_surface_source (surface, spat, extents, &state);
|
|
return state;
|
|
}
|
|
|
|
state.action = DO_UNSUPPORTED;
|
|
return state;
|
|
}
|