progress on implementing render interface

1 files changed, 66 insertions, 0 deletions

diff --git a/src/rmlui/irodeo_rmlui.hpp b/src/rmlui/irodeo_rmlui.hpp
new file mode 100644
index 0000000..66573b0
--- /dev/null
+++ b/src/rmlui/irodeo_rmlui.hpp
@@ -0,0 +1,66 @@
+#pragma once
+
+#define RMLUI_STATIC_LIB
+
+// -- external --
+#include <RmlUi/Core/RenderInterface.h>
+#include <RmlUi/Core/Types.h>
+
+class RenderInterface_Rodeo : public Rml::RenderInterface {
+	public:
+
+		bool is_projecting = false;
+
+		RenderInterface_Rodeo();
+		~RenderInterface_Rodeo();
+
+		// The viewport should be updated whenever the window size changes.
+		void SetViewport(int viewport_width, int viewport_height);
+
+		// Sets up OpenGL states for taking rendering commands from RmlUi.
+		void BeginFrame();
+		void EndFrame();
+
+		// -- Inherited from Rml::RenderInterface --
+
+		void RenderGeometry(
+			Rml::Vertex* vertices,
+			int num_vertices,
+			int* indices,
+			int num_indices,
+			Rml::TextureHandle texture,
+			const Rml::Vector2f& translation
+		) override;
+
+		void EnableScissorRegion(bool enable) override;
+		void SetScissorRegion(int x, int y, int width, int height) override;
+
+		bool LoadTexture(
+			Rml::TextureHandle& texture_handle,
+			Rml::Vector2i& texture_dimensions,
+			const Rml::String& source
+		) override;
+		bool GenerateTexture(
+			Rml::TextureHandle& texture_handle,
+			const Rml::byte* source,
+			const Rml::Vector2i& source_dimensions
+		) override;
+		void ReleaseTexture(Rml::TextureHandle texture_handle) override;
+
+		void SetTransform(const Rml::Matrix4f* transform) override;
+
+		// Can be passed to RenderGeometry() to enable texture rendering without changing the bound texture.
+		static const Rml::TextureHandle TextureEnableWithoutBinding = Rml::TextureHandle(-1);
+
+	private:
+		//Rml::Matrix4f transform, projection;
+		//ProgramId transform_dirty_state = ProgramId::All;
+		//bool transform_active = false;
+
+		//enum class ScissoringState { Disable, Scissor, Stencil };
+		//ScissoringState scissoring_state = ScissoringState::Disable;
+
+		int viewport_width = 0;
+		int viewport_height = 0;
+
+};