/opengles/src/linux-ftk/Surface.h

  1#ifndef EGL_SURFACE_H
  2#define EGL_SURFACE_H 1
  3
  4// ==========================================================================
  5//
  6// Surface.h		Drawing Surface Class for 3D Rendering Library
  7//
  8// --------------------------------------------------------------------------
  9//
 10// 08-14-2003		Hans-Martin Will	initial version
 11// 08-18-2010		Li XianJing		port to ftk
 12//
 13// --------------------------------------------------------------------------
 14//
 15// Copyright (c) 2004, Hans-Martin Will. All rights reserved.
 16// 
 17// Redistribution and use in source and binary forms, with or without 
 18// modification, are permitted provided that the following conditions are 
 19// met:
 20// 
 21//	 *	Redistributions of source code must retain the above copyright
 22//		notice, this list of conditions and the following disclaimer. 
 23//	 *	Redistributions in binary form must reproduce the above copyright
 24//		notice, this list of conditions and the following disclaimer in the 
 25//		documentation and/or other materials provided with the distribution. 
 26// 
 27// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 28// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 29// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 30// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 31// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 
 32// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 33// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 34// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 35// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 36// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
 37// THE POSSIBILITY OF SUCH DAMAGE.
 38//
 39// ==========================================================================
 40
 41
 42#include <ftk.h>
 43#include "OGLES.h"
 44#include "GLES/egl.h"
 45#include "GLES/gl.h"
 46#include "Types.h"
 47#include "Config.h"
 48#include "fixed.h"
 49#include "Color.h"
 50#include "Color.h"
 51
 52namespace EGL {
 53
 54	class Surface {
 55		friend class Context;
 56
 57	public:
 58
 59		// Create a PBuffer surface
 60		Surface(const Config & config, NativeDisplayType display, NativeWindowType win);
 61		~Surface();
 62
 63		// Is the depth value re-scaled based on near/far settings?.
 64		void ClearDepthBuffer(U16 depth, bool mask, const Rect& scissor);
 65		void ClearColorBuffer(const Color & rgba, const Color & mask, const Rect& scissor);
 66		void ClearStencilBuffer(U32 value, U32 mask, const Rect& scissor);
 67
 68		void ClearDepthBuffer(U16 depth, bool mask);
 69		void ClearColorBuffer(const Color & rgba, const Color & mask);
 70		void ClearStencilBuffer(U32 value, U32 mask);
 71
 72		U16 GetWidth();
 73		U16 GetHeight();
 74		U32 GetPixels();
 75		const Rect& GetRect() const;
 76
 77		void SetCurrentContext(Context * context);
 78		Context * GetCurrentContext();
 79
 80		U16 * GetColorBuffer();
 81		U8 *  GetAlphaBuffer();
 82		U16 * GetDepthBuffer();
 83		U32 * GetStencilBuffer();
 84
 85		Config * GetConfig();
 86		bool Save(const char *filename);
 87		void Dispose();
 88
 89		// Windows integration
 90		NativeDisplayType GetDisplay();
 91		NativeWindowType  GetWidget();
 92		NativePixmapType  GetBitmap();
 93	
 94		int GetSurfaceType();
 95
 96	private:
 97		int m_SurfaceType;
 98		int m_WindowDepth;
 99		Rect	m_Rect;
100		Config	m_Config;			// configuration arguments
101		U16 *	m_ColorBuffer;		// pointer to frame buffer base address 5-6-5
102		U8 *	m_AlphaBuffer;		// pointer to alpha buffer
103		U16 *	m_DepthBuffer;		// pointer to Z-buffer base address
104		U32 *	m_StencilBuffer;	// stencil buffer
105		
106		NativeWindowType  m_Window;
107		NativePixmapType  m_Bitmap;
108		NativeDisplayType m_Display;				// windows device context handle
109
110		Context *	m_CurrentContext;
111		bool	m_Disposed;			// the surface 
112	};
113
114
115	// --------------------------------------------------------------------------
116	// Inline accessors
117	// --------------------------------------------------------------------------
118
119	inline Config * Surface :: GetConfig() {
120		return &m_Config;
121	}
122
123	inline U32 Surface :: GetPixels() {
124		return GetWidth() * GetHeight();
125	}
126
127	inline Context * Surface :: GetCurrentContext() {
128		return m_CurrentContext;
129	}
130
131	inline NativePixmapType Surface :: GetBitmap() {
132		return m_Bitmap;
133	}
134	
135	inline NativeWindowType Surface :: GetWidget() {
136		return m_Window;
137	}
138
139	inline int Surface :: GetSurfaceType() {
140		return m_SurfaceType;
141	}
142	
143	inline U16 * Surface :: GetColorBuffer() {
144		return m_ColorBuffer;
145	}
146
147	inline U8 * Surface :: GetAlphaBuffer() {
148		return m_AlphaBuffer;
149	}
150
151	inline U16 * Surface :: GetDepthBuffer() {
152		return m_DepthBuffer;
153	}
154
155	inline U32 * Surface :: GetStencilBuffer() {
156		return m_StencilBuffer;
157	}
158
159	inline U16 Surface :: GetWidth() {
160		return m_Rect.width;
161	}
162
163	inline U16 Surface :: GetHeight() {
164		return m_Rect.height;
165	}
166
167	inline const Rect& Surface :: GetRect() const {
168		return m_Rect;
169	}
170
171	inline void Surface :: ClearDepthBuffer(U16 depth, bool mask) {
172		ClearDepthBuffer(depth, mask, GetRect());
173	}
174
175	inline void Surface :: ClearColorBuffer(const Color & rgba, const Color & mask) {
176		ClearColorBuffer(rgba, mask, GetRect());
177	}
178
179	inline void Surface :: ClearStencilBuffer(U32 value, U32 mask) {
180		ClearStencilBuffer(value, mask, GetRect());
181	}
182}
183
184#endif // ndef EGL_SURFACE_H