add sdl implementation

1 files changed, 16 insertions, 0 deletions

diff --git a/app/sdl/impl/display-sdl.cc b/app/sdl/impl/display-sdl.cc
new file mode 100644
index 0000000..d8e22d1
--- /dev/null
+++ b/app/sdl/impl/display-sdl.cc
@@ -0,0 +1,16 @@
+#include "impl/display-sdl.hh"
+
+namespace nes::app::sdl
+{
+	auto display_sdl::set(u32 const x, u32 const y, rgb const color) -> void
+	{
+		buffer_back_[(y * width) + x] = (color.r << 24) | (color.g << 16) | (color.b << 8);
+	}
+
+	auto display_sdl::switch_buffers() -> void
+	{
+		if (!texture_) { return; }
+
+		SDL_UpdateTexture(texture_, nullptr, buffer_back_, width * 4);
+	}
+} // namespace nes::app::sdl