copied refactor to trunk

1 files changed, 151 insertions, 0 deletions

diff --git a/src/engine/graphics.h b/src/engine/graphics.h
new file mode 100644
index 00000000..4d3c0bc0
--- /dev/null
+++ b/src/engine/graphics.h
@@ -0,0 +1,151 @@
+#ifndef ENGINE_GRAPHICS_H
+#define ENGINE_GRAPHICS_H
+
+#include "kernel.h"
+
+class CImageInfo
+{
+public:
+	enum
+	{
+		FORMAT_AUTO=-1,
+		FORMAT_RGB=0,
+		FORMAT_RGBA=1,
+		FORMAT_ALPHA=2,
+	};
+
+	/* Variable: width
+		Contains the width of the image */
+	int m_Width;
+	
+	/* Variable: height
+		Contains the height of the image */
+	int m_Height;
+	
+	/* Variable: format
+		Contains the format of the image. See <Image Formats> for more information. */
+	int m_Format;
+
+	/* Variable: data
+		Pointer to the image data. */
+	void *m_pData;
+};
+
+/*
+	Structure: CVideoMode
+*/
+class CVideoMode
+{
+public:
+	int m_Width, m_Height;
+	int m_Red, m_Green, m_Blue;
+};
+
+class IGraphics : public IInterface
+{
+	MACRO_INTERFACE("graphics", 0)
+protected:
+	int m_ScreenWidth;
+	int m_ScreenHeight;
+public:
+	/* Constants: Texture Loading Flags
+		TEXLOAD_NORESAMPLE - Prevents the texture from any resampling
+	*/
+	enum
+	{
+		TEXLOAD_NORESAMPLE=1,
+	};
+
+	int ScreenWidth() const { return m_ScreenWidth; }
+	int ScreenHeight() const { return m_ScreenHeight; }
+	float ScreenAspect() const { return (float)ScreenWidth()/(float)ScreenHeight(); }
+	
+	virtual void Clear(float r, float g, float b) = 0;
+	
+	virtual void ClipEnable(int x, int y, int w, int h) = 0;
+	virtual void ClipDisable() = 0;
+	
+	virtual void MapScreen(float TopLeftX, float TopLeftY, float BottomRightX, float BottomRightY) = 0;
+	virtual void GetScreen(float *pTopLeftX, float *pTopLeftY, float *pBottomRightX, float *pBottomRightY) = 0;
+	
+	// TODO: These should perhaps not be virtuals
+	virtual void BlendNone() = 0;
+	virtual void BlendNormal() = 0;
+	virtual void BlendAdditive() = 0;
+	virtual int MemoryUsage() const = 0;
+	
+	virtual int LoadPNG(CImageInfo *pImg, const char *pFilename) =0;
+	virtual int UnloadTexture(int Index) = 0;
+	virtual int LoadTextureRaw(int Width, int Height, int Format, const void *pData, int StoreFormat, int Flags) = 0;
+	virtual int LoadTexture(const char *pFilename, int StoreFormat, int Flags) = 0;
+	virtual void TextureSet(int TextureID) = 0;
+	
+	struct CLineItem
+	{
+		float m_X0, m_Y0, m_X1, m_Y1;
+		CLineItem() {}
+		CLineItem(float x0, float y0, float x1, float y1) : m_X0(x0), m_Y0(y0), m_X1(x1), m_Y1(y1) {}
+	};
+	virtual void LinesBegin() = 0;
+	virtual void LinesEnd() = 0;
+	virtual void LinesDraw(const CLineItem *pArray, int Num) = 0;
+	
+	virtual void QuadsBegin() = 0;
+	virtual void QuadsEnd() = 0;
+	virtual void QuadsSetRotation(float Angle) = 0;
+	virtual void QuadsSetSubset(float TopLeftY, float TopLeftV, float BottomRightU, float BottomRightV) = 0;
+	virtual void QuadsSetSubsetFree(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3) = 0;
+	
+	struct CQuadItem
+	{
+		float m_X, m_Y, m_Width, m_Height;
+		CQuadItem() {}
+		CQuadItem(float x, float y, float w, float h) : m_X(x), m_Y(y), m_Width(w), m_Height(h) {}
+	};
+	virtual void QuadsDraw(CQuadItem *pArray, int Num) = 0;
+	virtual void QuadsDrawTL(const CQuadItem *pArray, int Num) = 0;
+	
+	struct CFreeformItem
+	{
+		float m_X0, m_Y0, m_X1, m_Y1, m_X2, m_Y2, m_X3, m_Y3;
+		CFreeformItem() {}
+		CFreeformItem(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3)
+			: m_X0(x0), m_Y0(y0), m_X1(x1), m_Y1(y1), m_X2(x2), m_Y2(y2), m_X3(x3), m_Y3(y3) {}
+	};
+	virtual void QuadsDrawFreeform(const CFreeformItem *pArray, int Num) = 0;
+	virtual void QuadsText(float x, float y, float Size, float r, float g, float b, float a, const char *pText) = 0;
+	
+	struct CColorVertex
+	{
+		int m_Index;
+		float m_R, m_G, m_B, m_A;
+		CColorVertex() {}
+		CColorVertex(int i, float r, float g, float b, float a) : m_Index(i), m_R(r), m_G(g), m_B(b), m_A(a) {}
+	};
+	virtual void SetColorVertex(const CColorVertex *pArray, int Num) = 0;
+	virtual void SetColor(float r, float g, float b, float a) = 0;
+	
+	virtual void TakeScreenshot() = 0;
+	virtual int GetVideoModes(CVideoMode *pModes, int MaxModes) = 0;
+
+	virtual void Swap() = 0;
+};
+
+class IEngineGraphics : public IGraphics
+{
+	MACRO_INTERFACE("enginegraphics", 0)
+public:
+	virtual bool Init() = 0;
+	virtual void Shutdown() = 0;
+	
+	virtual void Minimize() = 0;
+	virtual void Maximize() = 0;
+	
+	virtual int WindowActive() = 0;
+	virtual int WindowOpen() = 0;
+	
+};
+
+extern IEngineGraphics *CreateEngineGraphics();
+
+#endif