1 files changed, 123 insertions, 0 deletions

diff --git a/Source/Asura.Engine/graphics/shader.h b/Source/Asura.Engine/graphics/shader.h
new file mode 100644
index 0000000..103c7b7
--- /dev/null
+++ b/Source/Asura.Engine/graphics/shader.h
@@ -0,0 +1,123 @@
+#ifndef __ASURA_ENGINE_SHADER_H__
+#define __ASURA_ENGINE_SHADER_H__
+
+#include <map>
+#include <string>
+
+#include "FileSystem/Reloadable.h"
+#include "Scripting/Luax.hpp"
+#include "Math/Vector2.hpp"
+#include "Math/Vector3.hpp"
+#include "Math/Vector4.h"
+#include "Math/Matrix44.h"
+#include "StringMap.hpp"
+#include "scripting/portable.h"
+#include "Color.h"
+#include "Manager.hpp"
+#include "Texture.h"
+#include "GL.h"
+
+namespace AsuraEngine
+{
+	namespace Graphics
+	{
+
+		///
+		/// һ��shader��һ���ڲ��ʼ乲���ij���Shader����������uniforms�Ͷ������ݣ�ֻ�ṩ����uniforms��use��ɫ���ķ������༭
+		/// �����ÿ��shader����ͨ��shader�����ҵ�������uniforms����������¶��framework��material���á�
+		///
+		class Shader ASURA_FINAL
+			: public Scripting::Portable<Shader>
+			, public Filesystem::Reloadable
+		{
+		public:
+
+			Shader();
+
+			~Shader();
+
+			///
+			/// �Ӵ������shader������ʱ���ȼ���Ƿ����ϴλ����uniforms location map��ʹ��glAttachShader���±���������ɫ����
+			/// ��������������ɫ������
+			///
+			bool Load(const std::string& vertexShader, const std::string& fragmentShader);
+
+			///
+			/// ������shader����Ϊ�
+			///
+			void Use();
+
+			///
+			/// ������shader����Ϊ�ǻ
+			///
+			void Unuse();
+
+			///
+			/// ���Ѿ�֪��uniform location������£�����ֵ��
+			///
+			void SetUniformFloat(uint loc, float value);
+			void SetUniformTexture(uint loc, const Texture& texture);
+			void SetUniformVector2(uint loc, const Math::Vector2f& vec2);
+			void SetUniformVector3(uint loc, const Math::Vector3f& vec3);
+			void SetUniformVector4(uint loc, const Math::Vector4f& vec4);
+			void SetUniformColor(uint loc, const Color& color);
+			void SetUniformMatrix44(uint loc, const Math::Matrix44& mat44);
+
+			uint GetUniformLocation(const std::string& uniform);
+
+			bool HasUniform(const std::string& uniform);
+
+			GLuint GetGLProgramHandle();
+
+			///
+			/// ���texture unit������һ��Ϊ16��
+			///
+			static uint GetGLTextureUnitCount();
+
+		private:
+
+			///
+			/// ��ǰ���shader
+			///
+			static Shader* mCurrentShader;
+
+			///
+			/// ����������
+			///	    vec2	Asura_Time             xֵΪ���뵱ǰ������ʼ��ʱ�䣬yֵΪ��һ֡��ʱ����
+			///	    vec2	Asura_RenderTargetSize RT�Ĵ�С��������Ϊ��λ
+			///	    Texture Asura_MainTexture	   ������
+			///
+			void SetBuiltInUniforms();
+
+			///
+			/// OpenGL shader program handle.
+			/// 
+			GLuint mProgramHandle;
+
+		public:
+
+			//----------------------------------------------------------------------------------------------------------
+
+			LUAX_DECL_FACTORY(SimShader);
+
+			LUAX_DECL_METHOD(l_Use);
+			LUAX_DECL_METHOD(l_Unuse);
+			LUAX_DECL_METHOD(l_Load);
+			LUAX_DECL_METHOD(l_HasUniform);
+			LUAX_DECL_METHOD(l_GetUniformLocation);
+			LUAX_DECL_METHOD(l_SetBuiltInUniforms);
+			LUAX_DECL_METHOD(l_SetUniformFloat);
+			LUAX_DECL_METHOD(l_SetUniformTexture);
+			LUAX_DECL_METHOD(l_SetUniformVector2);
+			LUAX_DECL_METHOD(l_SetUniformVector3);
+			LUAX_DECL_METHOD(l_SetUniformVector4);
+			LUAX_DECL_METHOD(l_SetUniformColor);
+
+			//----------------------------------------------------------------------------------------------------------
+
+		};
+
+	}
+}
+
+#endif
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