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Merge pull request #2318 from Yodesoft/master 

Reduce function call in nativeInitBitmapDC to improve performance.
This commit is contained in:
minggo 2013-04-07 19:01:09 -07:00
parent 9dfe6ba04f 8f4b04aef7
commit b72bfdfcb3
1 changed files with 8 additions and 7 deletions
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15
cocos2dx/platform/android/CCImage.cpp
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@ -85,7 +85,7 @@ public:
}
// ARGB -> RGBA
unsigned int swapAlpha(unsigned int value)
inline unsigned int swapAlpha(unsigned int value)
{
return ((value << 8 & 0xffffff00) | (value >> 24 & 0x000000ff));
}
@ -148,20 +148,21 @@ extern "C"
JNIEXPORT void JNICALL Java_org_cocos2dx_lib_Cocos2dxBitmap_nativeInitBitmapDC(JNIEnv* env, jobject thiz, int width, int height, jbyteArray pixels)
{
int size = width * height * 4;
cocos2d::sharedBitmapDC().m_nWidth = width;
cocos2d::sharedBitmapDC().m_nHeight = height;
cocos2d::sharedBitmapDC().m_pData = new unsigned char[size];
env->GetByteArrayRegion(pixels, 0, size, (jbyte*)cocos2d::sharedBitmapDC().m_pData);
cocos2d::BitmapDC& bitmapDC = cocos2d::sharedBitmapDC();
bitmapDC.m_nWidth = width;
bitmapDC.m_nHeight = height;
bitmapDC.m_pData = new unsigned char[size];
env->GetByteArrayRegion(pixels, 0, size, (jbyte*)bitmapDC.m_pData);
// swap data
unsigned int *tempPtr = (unsigned int*)cocos2d::sharedBitmapDC().m_pData;
unsigned int *tempPtr = (unsigned int*)bitmapDC.m_pData;
unsigned int tempdata = 0;
for (int i = 0; i < height; ++i)
{
for (int j = 0; j < width; ++j)
{
tempdata = *tempPtr;
*tempPtr++ = cocos2d::sharedBitmapDC().swapAlpha(tempdata);
*tempPtr++ = bitmapDC.swapAlpha(tempdata);
}
}
}