mirror of https://github.com/axmolengine/axmol.git
183 lines
6.1 KiB
C
183 lines
6.1 KiB
C
/****************************************************************************
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Copyright (c) 2010-2011 cocos2d-x.org
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Copyright (c) 2008-2010 Ricardo Quesada
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Copyright (c) 2011 Zynga Inc.
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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 __CCMACROS_H__
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#define __CCMACROS_H__
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#ifndef _USE_MATH_DEFINES
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#define _USE_MATH_DEFINES
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#endif
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#include "CCCommon.h"
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#include "CCStdC.h"
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#ifndef CCAssert
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#define CCAssert(cond, msg) CC_ASSERT(cond)
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#endif // CCAssert
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#include "ccConfig.h"
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/** @def CC_SWAP
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simple macro that swaps 2 variables
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*/
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#define CC_SWAP(x, y, type) \
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{ type temp = (x); \
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x = y; y = temp; \
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}
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/** @def CCRANDOM_MINUS1_1
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returns a random float between -1 and 1
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*/
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#define CCRANDOM_MINUS1_1() ((2.0f*((float)rand()/RAND_MAX))-1.0f)
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/** @def CCRANDOM_0_1
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returns a random float between 0 and 1
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*/
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#define CCRANDOM_0_1() ((float)rand()/RAND_MAX)
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/** @def CC_DEGREES_TO_RADIANS
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converts degrees to radians
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*/
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#define CC_DEGREES_TO_RADIANS(__ANGLE__) ((__ANGLE__) * 0.01745329252f) // PI / 180
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/** @def CC_RADIANS_TO_DEGREES
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converts radians to degrees
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*/
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#define CC_RADIANS_TO_DEGREES(__ANGLE__) ((__ANGLE__) * 57.29577951f) // PI * 180
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/** @def CC_BLEND_SRC
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default gl blend src function. Compatible with premultiplied alpha images.
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*/
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#if CC_OPTIMIZE_BLEND_FUNC_FOR_PREMULTIPLIED_ALPHA
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#define CC_BLEND_SRC GL_ONE
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#define CC_BLEND_DST GL_ONE_MINUS_SRC_ALPHA
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#else
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#define CC_BLEND_SRC GL_SRC_ALPHA
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#define CC_BLEND_DST GL_ONE_MINUS_SRC_ALPHA
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#endif // ! CC_OPTIMIZE_BLEND_FUNC_FOR_PREMULTIPLIED_ALPHA
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/** @def CC_BLEND_DST
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default gl blend dst function. Compatible with premultiplied alpha images.
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*/
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#define CC_BLEND_DST GL_ONE_MINUS_SRC_ALPHA
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/** @def CC_ENABLE_DEFAULT_GL_STATES
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GL states that are enabled:
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- GL_TEXTURE_2D
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- GL_VERTEX_ARRAY
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- GL_TEXTURE_COORD_ARRAY
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- GL_COLOR_ARRAY
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*/
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#define CC_ENABLE_DEFAULT_GL_STATES() { \
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glEnableClientState(GL_VERTEX_ARRAY); \
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glEnableClientState(GL_COLOR_ARRAY); \
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glEnableClientState(GL_TEXTURE_COORD_ARRAY); \
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glEnable(GL_TEXTURE_2D); \
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}
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/** @def CC_DISABLE_DEFAULT_GL_STATES
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Disable default GL states:
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- GL_TEXTURE_2D
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- GL_VERTEX_ARRAY
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- GL_TEXTURE_COORD_ARRAY
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- GL_COLOR_ARRAY
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*/
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#define CC_DISABLE_DEFAULT_GL_STATES() { \
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glDisable(GL_TEXTURE_2D); \
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glDisableClientState(GL_COLOR_ARRAY); \
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glDisableClientState(GL_TEXTURE_COORD_ARRAY); \
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glDisableClientState(GL_VERTEX_ARRAY); \
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}
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#ifndef FLT_EPSILON
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#define FLT_EPSILON 1.192092896e-07F
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#endif // FLT_EPSILON
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#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
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TypeName(const TypeName&);\
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void operator=(const TypeName&)
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/**
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@since v0.99.5
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@todo upto-0.99.5 check the code for retina
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*/
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#if CC_IS_RETINA_DISPLAY_SUPPORTED
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/****************************/
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/** RETINA DISPLAY ENABLED **/
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/****************************/
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/** @def CC_CONTENT_SCALE_FACTOR
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On Mac it returns 1;
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On iPhone it returns 2 if RetinaDisplay is On. Otherwise it returns 1
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*/
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#define CC_CONTENT_SCALE_FACTOR() CCDirector::sharedDirector()->getContentScaleFactor()
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/** @def CC_RECT_PIXELS_TO_POINTS
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Converts a rect in pixels to points
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*/
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#define CC_RECT_PIXELS_TO_POINTS(__pixels__) \
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CCRectMake( (__pixels__).origin.x / CC_CONTENT_SCALE_FACTOR(), (__pixels__).origin.y / CC_CONTENT_SCALE_FACTOR(), \
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(__pixels__).size.width / CC_CONTENT_SCALE_FACTOR(), (__pixels__).size.height / CC_CONTENT_SCALE_FACTOR() )
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/** @def CC_RECT_POINTS_TO_PIXELS
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Converts a rect in points to pixels
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*/
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#define CC_RECT_POINTS_TO_PIXELS(__points__) \
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CCRectMake( (__points__).origin.x * CC_CONTENT_SCALE_FACTOR(), (__points__).origin.y * CC_CONTENT_SCALE_FACTOR(), \
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(__points__).size.width * CC_CONTENT_SCALE_FACTOR(), (__points__).size.height * CC_CONTENT_SCALE_FACTOR() )
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#else // retina disabled
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/*****************************/
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/** RETINA DISPLAY DISABLED **/
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/*****************************/
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#define CC_CONTENT_SCALE_FACTOR() 1
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#define CC_RECT_PIXELS_TO_POINTS(__pixels__) __pixels__
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#define CC_RECT_POINTS_TO_PIXELS(__points__) __points__
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#endif
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/**
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Helper marcos which converts 4-byte little/big endian
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integral number to the machine native number representation
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It should work same as apples CFSwapInt32LittleToHost(..)
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*/
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/// when define returns true it means that our architecture uses big endian
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#define CC_HOST_IS_BIG_ENDIAN (bool)(*(unsigned short *)"\0\xff" < 0x100)
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#define CC_SWAP32(i) ((i & 0x000000ff) << 24 | (i & 0x0000ff00) << 8 | (i & 0x00ff0000) >> 8 | (i & 0xff000000) >> 24)
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#define CC_SWAP16(i) ((i & 0x00ff) << 8 | (i &0xff00) >> 8)
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#define CC_SWAP_INT32_LITTLE_TO_HOST(i) ((CC_HOST_IS_BIG_ENDIAN == true)? CC_SWAP32(i) : (i) )
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#define CC_SWAP_INT16_LITTLE_TO_HOST(i) ((CC_HOST_IS_BIG_ENDIAN == true)? CC_SWAP16(i) : (i) )
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#define CC_SWAP_INT32_BIG_TO_HOST(i) ((CC_HOST_IS_BIG_ENDIAN == true)? (i) : CC_SWAP32(i) )
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#define CC_SWAP_INT16_BIG_TO_HOST(i) ((CC_HOST_IS_BIG_ENDIAN == true)? (i): CC_SWAP16(i) )
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#endif // __CCMACROS_H__
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