added internal buffer to get rid of display::get

2 files changed, 3 insertions, 9 deletions

diff --git a/lib/nes/app/ui/screen-freeze.cc b/lib/nes/app/ui/screen-freeze.cc
index 60410dd..68507db 100644
--- a/lib/nes/app/ui/screen-freeze.cc
+++ b/lib/nes/app/ui/screen-freeze.cc
@@ -3,15 +3,9 @@
 
 namespace nes::app
 {
-	auto screen_freeze::freeze(display const& disp) -> void
+	auto screen_freeze::freeze(span<rgb, display::width * display::height> front_buffer) -> void
 	{
-		for (auto y = u32{ 0 }; y < display::height; ++y)
-		{
-			for (auto x = u32{ 0 }; x < display::width; ++x)
-			{
-				frozen_data_[y * display::width + x] = disp.get(x, y);
-			}
-		}
+		copy(front_buffer.get_data(), frozen_data_, front_buffer.get_length());
 	}
 
 	auto screen_freeze::render(renderer& renderer) -> void
diff --git a/lib/nes/app/ui/screen-freeze.hh b/lib/nes/app/ui/screen-freeze.hh
index fe67aad..2ae1eb2 100644
--- a/lib/nes/app/ui/screen-freeze.hh
+++ b/lib/nes/app/ui/screen-freeze.hh
@@ -20,6 +20,6 @@ namespace nes::app
 		auto process_events() -> action override;
 
 		/// Update the image shown to the back buffer of the given display.
-		auto freeze(display const&) -> void;
+		auto freeze(span<rgb, display::width * display::height> front_buffer) -> void;
 	};
 } // namespace nes::app
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