Open source Star Ruler 2 source code!

source/game/render/vertexBuffer.h

@@ -0,0 +1,105 @@
+#pragma once
+#include "vec3.h"
+#include "vec2.h"
+#include "color.h"
+#include <vector>
+#include <deque>
+
+namespace scene {
+	class Node;
+};
+
+namespace render {
+	struct RenderState;
+
+	extern unsigned vbFloatLimit, vbMaxSteps;
+
+	enum FlushCause {
+		FC_Forced,
+		FC_VertexLimit,
+		FC_StepLimit,
+		FC_ShaderLimit,
+		FC_COUNT
+	};
+
+	extern unsigned vbFlushCounts[FC_COUNT];
+
+	struct RenderStep {
+		const RenderState* material;
+		float* shaderCache;
+		unsigned short indexOffset;
+		unsigned short vertStart, vertEnd;
+		bool lines;
+	};
+
+	struct VertexTCV {
+		vec2f uv;
+		Color col;
+		vec3f pos;
+
+		inline void set(const vec3f& Pos) {
+			col = Color();
+			uv = vec2f();
+			pos = Pos;
+		}
+
+		inline void set(const vec2f& UV) {
+			col = Color();
+			uv = UV;
+			pos = vec3f();
+		}
+
+		inline void set(Color Col) {
+			col = Col;
+			uv = vec2f();
+			pos = vec3f();
+		}
+
+		inline void set(const vec3f& Pos, const vec2f& UV) {
+			col = Color();
+			uv = UV;
+			pos = Pos;
+		}
+
+		inline void set(const vec3f& Pos, const vec2f& UV, Color Col) {
+			col = Col;
+			uv = UV;
+			pos = Pos;
+		}
+	};
+
+	struct VertexCV {
+		Color col;
+		vec3f pos;
+	};
+
+	struct VertexTV {
+		vec2f uv;
+		vec3f pos;
+	};
+
+	class VertexBufferTCV {
+		RenderStep* last;
+		std::deque<unsigned> vertBuffer, indBuffer;
+		std::vector<VertexTCV> vertices;
+		std::vector<unsigned short> indices;
+		std::vector<RenderStep> steps;
+		float* shaderBuffer, *pNextShaderBuffer;
+		unsigned shaderBufferSize;
+
+		void flushRetainingLast(FlushCause reason);
+		void duplicateLast();
+
+	public:
+		static VertexBufferTCV* fetch(const RenderState* mat);
+		VertexTCV* request(unsigned polygons, unsigned polyType);
+		void draw(FlushCause reason = FC_Forced);
+
+		VertexBufferTCV();
+		~VertexBufferTCV();
+	};
+
+	//Renders out all pending vertex buffers
+	void renderVertexBuffers();
+
+};