Codechange: Use enum class for PaletteAnimation.

src/blitter/32bpp_anim.cpp

@@ -532,7 +532,7 @@ void Blitter_32bppAnim::PaletteAnimate(const Palette &palette)
 
 Blitter::PaletteAnimation Blitter_32bppAnim::UsePaletteAnimation()
 {
-	return Blitter::PALETTE_ANIMATION_BLITTER;
+	return Blitter::PaletteAnimation::Blitter;
 }
 
 void Blitter_32bppAnim::PostResize()

src/blitter/32bpp_base.cpp

@@ -152,5 +152,5 @@ void Blitter_32bppBase::PaletteAnimate(const Palette &)
 
 Blitter::PaletteAnimation Blitter_32bppBase::UsePaletteAnimation()
 {
-	return Blitter::PALETTE_ANIMATION_NONE;
+	return Blitter::PaletteAnimation::None;
 }

src/blitter/40bpp_anim.cpp

@@ -528,7 +528,7 @@ size_t Blitter_40bppAnim::BufferSize(uint width, uint height)
 
 Blitter::PaletteAnimation Blitter_40bppAnim::UsePaletteAnimation()
 {
-	return Blitter::PALETTE_ANIMATION_VIDEO_BACKEND;
+	return Blitter::PaletteAnimation::VideoBackend;
 }
 
 bool Blitter_40bppAnim::NeedsAnimationBuffer()

src/blitter/8bpp_base.cpp

@@ -156,5 +156,5 @@ void Blitter_8bppBase::PaletteAnimate(const Palette &)
 
 Blitter::PaletteAnimation Blitter_8bppBase::UsePaletteAnimation()
 {
-	return Blitter::PALETTE_ANIMATION_VIDEO_BACKEND;
+	return Blitter::PaletteAnimation::VideoBackend;
 }

src/blitter/base.hpp

@@ -47,10 +47,10 @@ public:
 	};
 
 	/** Types of palette animation. */
-	enum PaletteAnimation {
-		PALETTE_ANIMATION_NONE,           ///< No palette animation
-		PALETTE_ANIMATION_VIDEO_BACKEND,  ///< Palette animation should be done by video backend (8bpp only!)
-		PALETTE_ANIMATION_BLITTER,        ///< The blitter takes care of the palette animation
+	enum class PaletteAnimation : uint8_t {
+		None, ///< No palette animation
+		VideoBackend, ///< Palette animation should be done by video backend (8bpp only!)
+		Blitter, ///< The blitter takes care of the palette animation
 	};
 
 	/**

src/blitter/null.hpp

@@ -29,7 +29,7 @@ public:
 	void ScrollBuffer(void *, int &, int &, int &, int &, int, int) override {};
 	size_t BufferSize(uint, uint) override { return 0; };
 	void PaletteAnimate(const Palette &) override { };
-	Blitter::PaletteAnimation UsePaletteAnimation() override { return Blitter::PALETTE_ANIMATION_NONE; };
+	Blitter::PaletteAnimation UsePaletteAnimation() override { return Blitter::PaletteAnimation::None; };
 
 	std::string_view GetName() override { return "null"; }
 };