mirror of https://github.com/axmolengine/axmol.git
104 lines
4.0 KiB
C++
104 lines
4.0 KiB
C++
/****************************************************************************
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Copyright (c) 2010 cocos2d-x.org
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CCRENDER_TEXTURE_H__
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#define __CCRENDER_TEXTURE_H__
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#include "NSData.h"
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#include "CCNode.h"
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#include "CCSprite.h"
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namespace cocos2d {
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enum eImageFormat
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{
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kCCImageFormatJPG = 0,
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kCCImageFormatPNG = 1,
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kCCImageFormatRawData = 2
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};
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/**
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@brief CCRenderTexture is a generic rendering target. To render things into it,
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simply construct a render target, call begin on it, call visit on any cocos
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scenes or objects to render them, and call end. For convienience, render texture
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adds a sprite as it's display child with the results, so you can simply add
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the render texture to your scene and treat it like any other CocosNode.
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There are also functions for saving the render texture to disk in PNG or JPG format.
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@since v0.8.1
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*/
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class CCX_DLL CCRenderTexture : public CCNode
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{
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/** The CCSprite being used.
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The sprite, by default, will use the following blending function: GL_ONE, GL_ONE_MINUS_SRC_ALPHA.
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The blending function can be changed in runtime by calling:
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- [[renderTexture sprite] setBlendFunc:(ccBlendFunc){GL_ONE, GL_ONE_MINUS_SRC_ALPHA}];
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*/
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CCX_PROPERTY(CCSprite*, m_pSprite, Sprite)
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public:
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CCRenderTexture();
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virtual ~CCRenderTexture();
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/** creates a RenderTexture object with width and height in Points and a pixel format, only RGB and RGBA formats are valid */
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static CCRenderTexture * renderTextureWithWidthAndHeight(int w, int h, CCTexture2DPixelFormat eFormat);
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/** creates a RenderTexture object with width and height in Points, pixel format is RGBA8888 */
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static CCRenderTexture * renderTextureWithWidthAndHeight(int w, int h);
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/** initializes a RenderTexture object with width and height in Points and a pixel format, only RGB and RGBA formats are valid */
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bool initWithWidthAndHeight(int w, int h, CCTexture2DPixelFormat eFormat);
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/** starts grabbing */
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void begin();
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/** starts rendering to the texture while clearing the texture first.
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This is more efficient then calling -clear first and then -begin */
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void beginWithClear(float r, float g, float b, float a);
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/** ends grabbing */
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void end();
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/** clears the texture with a color */
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void clear(float r, float g, float b, float a);
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/** saves the texture into a file */
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bool saveBuffer(const char *name);
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/** saves the texture into a file. The format can be JPG or PNG */
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bool saveBuffer(const char *name, int format);
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/* get buffer as UIImage, can only save a render buffer which has a RGBA8888 pixel format */
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NSData *getUIImageAsDataFromBuffer(int format);
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protected:
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GLuint m_uFBO;
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GLint m_nOldFBO;
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CCTexture2D* m_pTexture;
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GLenum m_ePixelFormat;
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GLfloat m_aClearColor[4];
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private:
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void saveGLstate();
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void restoreGLstate();
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};
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} // namespace cocos2d
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#endif //__CCRENDER_TEXTURE_H__
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