Re-enable HDR on macOS

Detect HDR capability and use it to populate DisplayColorSpaces. Add
DisplayColorSpaces constructor that takes BufferFormat (we'll need it).

Update ui::RecyclableCompositorMac to take DisplayColorSpaces instead
of ColorSpace (they were dropping the data on the floor).

Update HDRCopierLayer to use PresentsWithTransaction correctly.

Bug: 1049334
Change-Id: I17a0f75ac08e75d0b38825a38ee0d738ca634059
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2049663Reviewed-by: Khushal <khushalsagar@chromium.org>
Commit-Queue: ccameron <ccameron@chromium.org>
Cr-Commit-Position: refs/heads/master@{#740374}

components/metal_util/hdr_copier_layer.mm

@@ -74,7 +74,6 @@ API_AVAILABLE(macos(10.15))
     [self setWantsExtendedDynamicRangeContent:YES];
     [self setDevice:device];
     [self setOpaque:NO];
-    [self setDisplaySyncEnabled:NO];
     [self setPresentsWithTransaction:YES];
   }
   return self;
@@ -150,8 +149,9 @@ API_AVAILABLE(macos(10.15))
           destinationLevel:0
          destinationOrigin:MTLOriginMake(0, 0, 0)];
   [encoder endEncoding];
-  [command_buffer presentDrawable:drawable];
   [command_buffer commit];
+  [command_buffer waitUntilScheduled];
+  [drawable present];
 }
 @end
 

content/browser/renderer_host/browser_compositor_view_mac.mm

@@ -143,7 +143,7 @@ bool BrowserCompositorMac::UpdateSurfaceFromNSView(
   if (recyclable_compositor_) {
     recyclable_compositor_->UpdateSurface(dfh_size_pixels_,
                                           dfh_display_.device_scale_factor(),
-                                          dfh_display_.color_space());
+                                          dfh_display_.color_spaces());
   }
 
   return true;
@@ -165,7 +165,7 @@ void BrowserCompositorMac::UpdateSurfaceFromChild(
       if (recyclable_compositor_) {
         recyclable_compositor_->UpdateSurface(
             dfh_size_pixels_, dfh_display_.device_scale_factor(),
-            dfh_display_.color_space());
+            dfh_display_.color_spaces());
       }
     }
     delegated_frame_host_->EmbedSurface(
@@ -271,7 +271,7 @@ void BrowserCompositorMac::TransitionToState(State new_state) {
             content::GetContextFactory(), content::GetContextFactoryPrivate());
     recyclable_compositor_->UpdateSurface(dfh_size_pixels_,
                                           dfh_display_.device_scale_factor(),
-                                          dfh_display_.color_space());
+                                          dfh_display_.color_spaces());
     recyclable_compositor_->compositor()->SetRootLayer(root_layer_.get());
     recyclable_compositor_->compositor()->SetBackgroundColor(background_color_);
     recyclable_compositor_->widget()->SetNSView(

ui/compositor/recyclable_compositor_mac.cc

@@ -70,7 +70,7 @@ void RecyclableCompositorMac::Unsuspend() {
 void RecyclableCompositorMac::UpdateSurface(
     const gfx::Size& size_pixels,
     float scale_factor,
-    const gfx::ColorSpace& color_space) {
+    const gfx::DisplayColorSpaces& display_color_spaces) {
   if (size_pixels != size_pixels_ || scale_factor != scale_factor_) {
     size_pixels_ = size_pixels;
     scale_factor_ = scale_factor;
@@ -80,9 +80,9 @@ void RecyclableCompositorMac::UpdateSurface(
     compositor()->SetScaleAndSize(scale_factor_, size_pixels_,
                                   local_surface_id_allocation);
   }
-  if (color_space != color_space_) {
-    color_space_ = color_space;
-    compositor()->SetDisplayColorSpaces(gfx::DisplayColorSpaces(color_space_));
+  if (display_color_spaces != display_color_spaces_) {
+    display_color_spaces_ = display_color_spaces;
+    compositor()->SetDisplayColorSpaces(display_color_spaces_);
   }
 }
 
@@ -90,7 +90,7 @@ void RecyclableCompositorMac::InvalidateSurface() {
   size_pixels_ = gfx::Size();
   scale_factor_ = 1.f;
   local_surface_id_allocator_.Invalidate();
-  color_space_ = gfx::ColorSpace();
+  display_color_spaces_ = gfx::DisplayColorSpaces();
   compositor()->SetScaleAndSize(
       scale_factor_, size_pixels_,
       local_surface_id_allocator_.GetCurrentLocalSurfaceIdAllocation());

ui/compositor/recyclable_compositor_mac.h

@@ -43,7 +43,7 @@ class COMPOSITOR_EXPORT RecyclableCompositorMac
   // Update the compositor's surface information, if needed.
   void UpdateSurface(const gfx::Size& size_pixels,
                      float scale_factor,
-                     const gfx::ColorSpace& color_space);
+                     const gfx::DisplayColorSpaces& display_color_spaces);
   // Invalidate the compositor's surface information.
   void InvalidateSurface();
 
@@ -58,7 +58,7 @@ class COMPOSITOR_EXPORT RecyclableCompositorMac
   viz::ParentLocalSurfaceIdAllocator local_surface_id_allocator_;
   gfx::Size size_pixels_;
   float scale_factor_ = 1.f;
-  gfx::ColorSpace color_space_;
+  gfx::DisplayColorSpaces display_color_spaces_;
 
   std::unique_ptr<ui::AcceleratedWidgetMac> accelerated_widget_mac_;
   ui::Compositor compositor_;

ui/display/mac/screen_mac.mm

@@ -16,6 +16,7 @@
 #include "base/mac/mac_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_nsobject.h"
+#include "base/mac/sdk_forward_declarations.h"
 #include "base/stl_util.h"
 #include "base/timer/timer.h"
 #include "ui/display/display.h"
@@ -81,32 +82,57 @@ Display BuildDisplayForScreen(NSScreen* screen) {
     scale = Display::GetForcedDeviceScaleFactor();
   display.set_device_scale_factor(scale);
 
-  // Compute the color profile.
+  // Examine the presence of HDR.
+  bool enable_hdr = false;
+  if (@available(macOS 10.15, *)) {
+    if ([screen maximumPotentialExtendedDynamicRangeColorComponentValue] >=
+        2.0) {
+      enable_hdr = true;
+    }
+  }
+
+  // Compute DisplayColorSpaces.
   gfx::ICCProfile icc_profile;
+  {
     CGColorSpaceRef cg_color_space = [[screen colorSpace] CGColorSpace];
     if (cg_color_space) {
       base::ScopedCFTypeRef<CFDataRef> cf_icc_profile(
           CGColorSpaceCopyICCProfile(cg_color_space));
       if (cf_icc_profile) {
-      icc_profile = gfx::ICCProfile::FromData(CFDataGetBytePtr(cf_icc_profile),
-                                              CFDataGetLength(cf_icc_profile));
+        icc_profile = gfx::ICCProfile::FromData(
+            CFDataGetBytePtr(cf_icc_profile), CFDataGetLength(cf_icc_profile));
       }
     }
     icc_profile.HistogramDisplay(display.id());
-  gfx::ColorSpace screen_color_space = icc_profile.GetColorSpace();
+  }
   if (Display::HasForceDisplayColorProfile()) {
     if (Display::HasEnsureForcedColorProfile()) {
-      CHECK_EQ(screen_color_space, display.color_space())
+      CHECK_EQ(icc_profile.GetColorSpace(), display.color_space())
           << "The display's color space does not match the color space that "
              "was forced by the command line. This will cause pixel tests to "
              "fail.";
     }
   } else {
-    display.set_color_space(screen_color_space);
+    gfx::DisplayColorSpaces display_color_spaces(icc_profile.GetColorSpace(),
+                                                 gfx::BufferFormat::RGBA_8888);
+    if (enable_hdr) {
+      bool needs_alpha_values[] = {true, false};
+      for (const auto& needs_alpha : needs_alpha_values) {
+        display_color_spaces.SetOutputColorSpaceAndBufferFormat(
+            gfx::ContentColorUsage::kHDR, needs_alpha,
+            gfx::ColorSpace::CreateExtendedSRGB(), gfx::BufferFormat::RGBA_F16);
+      }
+    }
+    display.set_color_spaces(display_color_spaces);
   }
 
+  if (enable_hdr) {
+    display.set_color_depth(Display::kHDR10BitsPerPixel);
+    display.set_depth_per_component(Display::kHDR10BitsPerComponent);
+  } else {
     display.set_color_depth(Display::kDefaultBitsPerPixel);
     display.set_depth_per_component(Display::kDefaultBitsPerComponent);
+  }
   display.set_is_monochrome(CGDisplayUsesForceToGray());
 
   if (auto display_link = ui::DisplayLinkMac::GetForDisplay(display_id))

ui/gfx/display_color_spaces.cc

@@ -36,6 +36,13 @@ DisplayColorSpaces::DisplayColorSpaces(const gfx::ColorSpace& c)
     color_space = c;
 }
 
+DisplayColorSpaces::DisplayColorSpaces(const ColorSpace& c, BufferFormat f) {
+  for (auto& color_space : color_spaces_)
+    color_space = c;
+  for (auto& buffer_format : buffer_formats_)
+    buffer_format = f;
+}
+
 void DisplayColorSpaces::SetOutputColorSpaceAndBufferFormat(
     ContentColorUsage color_usage,
     bool needs_alpha,

ui/gfx/display_color_spaces.h

@@ -39,6 +39,9 @@ class COLOR_SPACE_EXPORT DisplayColorSpaces {
   // Initialize as |color_space| for all settings.
   explicit DisplayColorSpaces(const ColorSpace& color_space);
 
+  // Initialize as |color_space| and |buffer_format| for all settings.
+  DisplayColorSpaces(const ColorSpace& color_space, BufferFormat buffer_format);
+
   // Set the color space and buffer format for the final output surface when the
   // specified content is being displayed.
   void SetOutputColorSpaceAndBufferFormat(ContentColorUsage color_usage,

ui/views/cocoa/native_widget_mac_ns_window_host.mm

@@ -529,7 +529,7 @@ void NativeWidgetMacNSWindowHost::UpdateCompositorProperties() {
   layer()->SetBounds(gfx::Rect(surface_size_in_dip));
   compositor_->UpdateSurface(
       ConvertSizeToPixel(display_.device_scale_factor(), surface_size_in_dip),
-      display_.device_scale_factor(), display_.color_space());
+      display_.device_scale_factor(), display_.color_spaces());
 }
 
 void NativeWidgetMacNSWindowHost::DestroyCompositor() {
@@ -989,7 +989,7 @@ void NativeWidgetMacNSWindowHost::OnWindowDisplayChanged(
     compositor_->UpdateSurface(
         ConvertSizeToPixel(display_.device_scale_factor(),
                            content_bounds_in_screen_.size()),
-        display_.device_scale_factor(), display_.color_space());
+        display_.device_scale_factor(), display_.color_spaces());
   }
   if (display_id_changed) {
     display_link_ = ui::DisplayLinkMac::GetForDisplay(display_.id());