mirror of https://github.com/axmolengine/axmol.git
281 lines
9.6 KiB
C++
281 lines
9.6 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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//#define COCOS2D_DEBUG 1
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#define __CC_PLATFORM_IMAGE_CPP__
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#include "platform/CCImageCommon_cpp.h"
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#include "platform/CCPlatformMacros.h"
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#include "platform/CCImage.h"
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#include "platform/CCFileUtils.h"
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#include "jni/JniHelper.h"
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#include <android/log.h>
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#include <string.h>
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#include <jni.h>
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// prototype
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void swapAlphaChannel(unsigned int *pImageMemory, unsigned int numPixels);
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NS_CC_BEGIN
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class BitmapDC
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{
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public:
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BitmapDC()
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: _data(NULL)
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, _width(0)
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, _height(0)
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{
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}
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~BitmapDC(void)
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{
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if (_data)
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{
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delete [] _data;
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}
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}
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bool getBitmapFromJavaShadowStroke( const char *text,
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int nWidth,
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int nHeight,
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Image::ETextAlign eAlignMask,
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const char * pFontName,
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float fontSize,
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float textTintR = 1.0,
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float textTintG = 1.0,
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float textTintB = 1.0,
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bool shadow = false,
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float shadowDeltaX = 0.0,
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float shadowDeltaY = 0.0,
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float shadowBlur = 0.0,
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float shadowOpacity = 0.0,
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bool stroke = false,
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float strokeColorR = 0.0,
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float strokeColorG = 0.0,
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float strokeColorB = 0.0,
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float strokeSize = 0.0 )
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{
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JniMethodInfo methodInfo;
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if (! JniHelper::getStaticMethodInfo(methodInfo, "org/cocos2dx/lib/Cocos2dxBitmap", "createTextBitmapShadowStroke",
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"(Ljava/lang/String;Ljava/lang/String;IFFFIIIZFFFFZFFFF)V"))
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{
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CCLOG("%s %d: error to get methodInfo", __FILE__, __LINE__);
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return false;
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}
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// Do a full lookup for the font path using FileUtils in case the given font name is a relative path to a font file asset,
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// or the path has been mapped to a different location in the app package:
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std::string fullPathOrFontName = FileUtils::getInstance()->fullPathForFilename(pFontName);
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// If the path name returned includes the 'assets' dir then that needs to be removed, because the android.content.Context
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// requires this portion of the path to be omitted for assets inside the app package.
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if (fullPathOrFontName.find("assets/") == 0)
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{
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fullPathOrFontName = fullPathOrFontName.substr(strlen("assets/")); // Chop out the 'assets/' portion of the path.
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}
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/**create bitmap
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* this method call Cococs2dx.createBitmap()(java code) to create the bitmap, the java code
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* will call Java_org_cocos2dx_lib_Cocos2dxBitmap_nativeInitBitmapDC() to init the width, height
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* and data.
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* use this approach to decrease the jni call number
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*/
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jstring jstrText = methodInfo.env->NewStringUTF(text);
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jstring jstrFont = methodInfo.env->NewStringUTF(fullPathOrFontName.c_str());
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methodInfo.env->CallStaticVoidMethod(methodInfo.classID, methodInfo.methodID, jstrText,
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jstrFont, (int)fontSize, textTintR, textTintG, textTintB, eAlignMask, nWidth, nHeight, shadow, shadowDeltaX, -shadowDeltaY, shadowBlur, shadowOpacity, stroke, strokeColorR, strokeColorG, strokeColorB, strokeSize);
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methodInfo.env->DeleteLocalRef(jstrText);
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methodInfo.env->DeleteLocalRef(jstrFont);
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methodInfo.env->DeleteLocalRef(methodInfo.classID);
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return true;
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}
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bool getBitmapFromJava(const char *text, int nWidth, int nHeight, Image::ETextAlign eAlignMask, const char * pFontName, float fontSize)
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{
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return getBitmapFromJavaShadowStroke( text, nWidth, nHeight, eAlignMask, pFontName, fontSize );
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}
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// ARGB -> RGBA
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inline unsigned int swapAlpha(unsigned int value)
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{
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return ((value << 8 & 0xffffff00) | (value >> 24 & 0x000000ff));
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}
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public:
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int _width;
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int _height;
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unsigned char *_data;
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JNIEnv *env;
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};
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static BitmapDC& sharedBitmapDC()
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{
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static BitmapDC s_BmpDC;
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return s_BmpDC;
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}
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bool Image::initWithString(
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const char * pText,
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int nWidth/* = 0*/,
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int nHeight/* = 0*/,
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ETextAlign eAlignMask/* = kAlignCenter*/,
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const char * pFontName/* = nil*/,
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int nSize/* = 0*/)
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{
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bool bRet = false;
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do
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{
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CC_BREAK_IF(! pText);
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BitmapDC &dc = sharedBitmapDC();
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CC_BREAK_IF(! dc.getBitmapFromJava(pText, nWidth, nHeight, eAlignMask, pFontName, nSize));
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// assign the dc._data to _data in order to save time
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_data = dc._data;
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CC_BREAK_IF(! _data);
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_width = (short)dc._width;
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_height = (short)dc._height;
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_hasAlpha = true;
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_preMulti = true;
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_bitsPerComponent = 8;
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bRet = true;
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} while (0);
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return bRet;
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}
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bool Image::initWithStringShadowStroke(
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const char * pText,
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int nWidth ,
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int nHeight ,
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ETextAlign eAlignMask ,
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const char * pFontName ,
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int nSize ,
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float textTintR,
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float textTintG,
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float textTintB,
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bool shadow,
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float shadowOffsetX,
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float shadowOffsetY,
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float shadowOpacity,
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float shadowBlur,
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bool stroke,
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float strokeR,
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float strokeG,
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float strokeB,
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float strokeSize)
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{
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bool bRet = false;
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do
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{
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CC_BREAK_IF(! pText);
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BitmapDC &dc = sharedBitmapDC();
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CC_BREAK_IF(! dc.getBitmapFromJavaShadowStroke(pText, nWidth, nHeight, eAlignMask, pFontName,
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nSize, textTintR, textTintG, textTintB, shadow,
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shadowOffsetX, shadowOffsetY, shadowBlur, shadowOpacity,
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stroke, strokeR, strokeG, strokeB, strokeSize ));
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// assign the dc._data to _data in order to save time
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_data = dc._data;
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CC_BREAK_IF(! _data);
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_width = (short)dc._width;
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_height = (short)dc._height;
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_hasAlpha = true;
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_preMulti = true;
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_bitsPerComponent = 8;
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// swap the alpha channel (ARGB to RGBA)
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swapAlphaChannel((unsigned int *)_data, (_width * _height) );
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// ok
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bRet = true;
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} while (0);
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return bRet;
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}
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NS_CC_END
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// swap the alpha channel in an 32 bit image (from ARGB to RGBA)
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void swapAlphaChannel(unsigned int *pImageMemory, unsigned int numPixels)
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{
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for(int c = 0; c < numPixels; ++c, ++pImageMemory)
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{
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// copy the current pixel
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unsigned int currenPixel = (*pImageMemory);
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// swap channels and store back
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char *pSource = (char *) ¤Pixel;
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*pImageMemory = (pSource[0] << 24) | (pSource[3]<<16) | (pSource[2]<<8) | pSource[1];
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}
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}
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// this method is called by Cocos2dxBitmap
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extern "C"
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{
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/**
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* this method is called by java code to init width, height and pixels data
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*/
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JNIEXPORT void JNICALL Java_org_cocos2dx_lib_Cocos2dxBitmap_nativeInitBitmapDC(JNIEnv* env, jobject thiz, int width, int height, jbyteArray pixels)
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{
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int size = width * height * 4;
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cocos2d::BitmapDC& bitmapDC = cocos2d::sharedBitmapDC();
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bitmapDC._width = width;
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bitmapDC._height = height;
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bitmapDC._data = new unsigned char[size];
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env->GetByteArrayRegion(pixels, 0, size, (jbyte*)bitmapDC._data);
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// swap data
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unsigned int *tempPtr = (unsigned int*)bitmapDC._data;
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unsigned int tempdata = 0;
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for (int i = 0; i < height; ++i)
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{
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for (int j = 0; j < width; ++j)
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{
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tempdata = *tempPtr;
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*tempPtr++ = bitmapDC.swapAlpha(tempdata);
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}
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}
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}
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};
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