зеркало из https://github.com/mozilla/gecko-dev.git
cleaned up.
This commit is contained in:
michaelp
Родитель
27be5ff665
Коммит
680d001699
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@ -35,6 +35,7 @@ nsImageWin :: nsImageWin()
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mAlphaBits = nsnull;
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mColorMap = nsnull;
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mBHead = nsnull;
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CleanUp(PR_TRUE);
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}
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@ -57,7 +58,7 @@ nsresult nsImageWin :: Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMa
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ComputePaletteSize(aDepth);
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if (mNumPalleteColors >= 0)
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{
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{
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mBHead = (LPBITMAPINFOHEADER) new char[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * mNumPalleteColors];
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mBHead->biSize = sizeof(BITMAPINFOHEADER);
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mBHead->biWidth = aWidth;
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@ -83,7 +84,7 @@ nsresult nsImageWin :: Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMa
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mColorMap = new nsColorMap;
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if (mColorMap != nsnull)
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{
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{
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mColorMap->NumColors = mNumPalleteColors;
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mColorMap->Index = new PRUint8[3 * mNumPalleteColors];
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@ -91,8 +92,8 @@ nsresult nsImageWin :: Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMa
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// copy of the memory (which we do!). I'm not sure if this
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// matters or not, but this shutup purify.
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memset(mColorMap->Index, 0, sizeof(PRUint8) * (3 * mNumPalleteColors));
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}
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}
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}
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}
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return NS_OK;
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}
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@ -102,24 +103,26 @@ nsresult nsImageWin :: Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMa
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// set up the pallete to the passed in color array, RGB only in this array
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void nsImageWin :: ImageUpdated(PRUint8 aFlags, nsRect *aUpdateRect)
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{
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PRInt32 i;
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PRUint8 *cpointer;
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PRInt32 i;
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PRUint8 *cpointer;
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if (aFlags & nsImageUpdateFlags_kColorMapChanged)
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if (aFlags & nsImageUpdateFlags_kColorMapChanged)
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{
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if (mColorMap->NumColors > 0)
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{
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cpointer = mColorTable;
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for(i = 0; i < mColorMap->NumColors; i++)
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{
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if (mColorMap->NumColors > 0)
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{
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cpointer = mColorTable;
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for(i = 0; i < mColorMap->NumColors; i++)
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{
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*cpointer++ = mColorMap->Index[(3 * i) + 2];
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*cpointer++ = mColorMap->Index[(3 * i) + 1];
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*cpointer++ = mColorMap->Index[(3 * i)];
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*cpointer++ = 0;
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}
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}
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this->MakePalette();
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}
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*cpointer++ = mColorMap->Index[(3 * i) + 2];
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*cpointer++ = mColorMap->Index[(3 * i) + 1];
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*cpointer++ = mColorMap->Index[(3 * i)];
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*cpointer++ = 0;
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}
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}
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this->MakePalette();
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}
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}
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//------------------------------------------------------------
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@ -130,6 +133,7 @@ PRUintn nsImageWin :: UsePalette(HDC* aHdc, PRBool bBackground)
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return 0;
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HPALETTE hOldPalette = ::SelectPalette(aHdc, mHPalette, (bBackground == PR_TRUE) ? TRUE : FALSE);
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return ::RealizePalette(aHdc);
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}
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@ -139,29 +143,28 @@ PRUintn nsImageWin :: UsePalette(HDC* aHdc, PRBool bBackground)
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PRBool nsImageWin :: Draw(nsDrawingSurface aSurface, PRInt32 aSX, PRInt32 aSY, PRInt32 aSWidth, PRInt32 aSHeight,
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PRInt32 aDX, PRInt32 aDY, PRInt32 aDWidth, PRInt32 aDHeight)
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{
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PRUint32 value,error;
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HDC the_hdc = (HDC)aSurface;
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PRUint32 value,error;
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HDC the_hdc = (HDC)aSurface;
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if (mBHead == nsnull)
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return PR_FALSE;
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if (!IsOptimized())
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{
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if (!IsOptimized())
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{
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value = ::StretchDIBits(the_hdc,aDX,aDY,aDWidth,aDHeight,
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0,0,aSWidth, aSHeight,
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mImageBits,(LPBITMAPINFO)mBHead,DIB_RGB_COLORS,SRCCOPY);
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if (value == GDI_ERROR)
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error = ::GetLastError();
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}
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}
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else
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{
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{
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SelectObject(mOptimizeDC,mHBitmap);
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if(!::StretchBlt(the_hdc,aDX,aDY,aDWidth,aDHeight,mOptimizeDC,aSX,aSY,
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aSWidth,aSHeight,SRCCOPY))
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{
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if (!::StretchBlt(the_hdc,aDX,aDY,aDWidth,aDHeight,mOptimizeDC,aSX,aSY,
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aSWidth,aSHeight,SRCCOPY))
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error = ::GetLastError();
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}
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}
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}
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return PR_TRUE;
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}
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@ -171,62 +174,56 @@ HDC the_hdc = (HDC)aSurface;
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// Draw the bitmap, this draw just has destination coordinates
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PRBool nsImageWin :: Draw(nsDrawingSurface aSurface, PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
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{
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PRUint32 value,error;
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HDC the_hdc = (HDC)aSurface;
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PRUint32 value,error;
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HDC the_hdc = (HDC)aSurface;
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if (mBHead == nsnull)
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return PR_FALSE;
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if (!IsOptimized())
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{
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if (!IsOptimized())
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{
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value = ::StretchDIBits(the_hdc,aX,aY,aWidth,aHeight,
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0,0,mBHead->biWidth, mBHead->biHeight,
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mImageBits,(LPBITMAPINFO)mBHead,DIB_RGB_COLORS,SRCCOPY);
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if (value == GDI_ERROR)
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error = ::GetLastError();
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}
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}
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else
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{
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{
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SelectObject(mOptimizeDC,mHBitmap);
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//if((aWidth == mBHead->biWidth) && (aHeight == mBHead->biHeight))
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//BitBlt(the_hdc,aX,aY,aWidth,aHeight,mOptimizeDC,0,0,SRCCOPY);
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if(!::StretchBlt(the_hdc,aX,aY,aWidth,aHeight,mOptimizeDC,0,0,
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mBHead->biWidth,mBHead->biHeight,SRCCOPY))
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{
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if (!::StretchBlt(the_hdc,aX,aY,aWidth,aHeight,mOptimizeDC,0,0,
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mBHead->biWidth,mBHead->biHeight,SRCCOPY))
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error = ::GetLastError();
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}
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}
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}
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return PR_TRUE;
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}
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//------------------------------------------------------------
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void
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nsImageWin::CompositeImage(nsIImage *aTheImage,nsPoint *aULLocation)
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void nsImageWin::CompositeImage(nsIImage *aTheImage, nsPoint *aULLocation)
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{
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// call the correct sub routine for each blend
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if( mNumBytesPixel==3 && ((nsImageWin*)aTheImage)->mNumBytesPixel==3)
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this->Comp24to24((nsImageWin*)aTheImage,aULLocation);
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if ((mNumBytesPixel == 3) && (((nsImageWin *)aTheImage)->mNumBytesPixel == 3))
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this->Comp24to24((nsImageWin*)aTheImage, aULLocation);
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}
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//------------------------------------------------------------
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// lets build an alpha mask from this image
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PRBool
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nsImageWin::SetAlphaMask(nsIImage *aTheMask)
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PRBool nsImageWin::SetAlphaMask(nsIImage *aTheMask)
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{
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PRInt32 num;
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LPBYTE srcbits;
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PRInt32 num;
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LPBYTE srcbits;
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if(aTheMask && ((nsImageWin*)aTheMask)->mNumBytesPixel == 1)
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{
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if (aTheMask && (((nsImageWin*)aTheMask)->mNumBytesPixel == 1))
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{
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mLocation.x = 0;
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mLocation.y = 0;
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mlphaDepth = 8;
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@ -238,8 +235,9 @@ LPBYTE srcbits;
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srcbits = aTheMask->GetBits();
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memcpy(mAlphaBits,srcbits,num);
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return(PR_TRUE);
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}
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}
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return(PR_FALSE);
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}
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@ -248,117 +246,122 @@ LPBYTE srcbits;
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// this routine has to flip the y, since the bits are in bottom scan
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// line to top.
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void
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nsImageWin::Comp24to24(nsImageWin *aTheImage,nsPoint *aULLocation)
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void nsImageWin::Comp24to24(nsImageWin *aTheImage, nsPoint *aULLocation)
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{
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nsRect arect,srect,drect,irect;
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PRInt32 dlinespan,slinespan,mlinespan,startx,starty,numbytes,numlines,x,y;
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LPBYTE d1,d2,s1,s2,m1,m2;
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double a1,a2;
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nsRect arect, srect, drect, irect;
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PRInt32 dlinespan, slinespan, mlinespan, startx, starty, numbytes, numlines, x, y;
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LPBYTE d1, d2, s1, s2, m1, m2;
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double a1, a2;
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if(mAlphaBits)
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{
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if (mAlphaBits)
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{
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x = mLocation.x;
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y = mLocation.y;
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arect.SetRect(0,0,this->GetWidth(),this->GetHeight());
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srect.SetRect(mLocation.x,mLocation.y,mAlphaWidth,mAlphaHeight);
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arect.IntersectRect(arect,srect);
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}
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arect.SetRect(0, 0, this->GetWidth(), this->GetHeight());
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srect.SetRect(mLocation.x, mLocation.y, mAlphaWidth, mAlphaHeight);
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arect.IntersectRect(arect, srect);
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}
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else
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{
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arect.SetRect(0,0,this->GetWidth(),this->GetHeight());
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{
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arect.SetRect(0, 0, this->GetWidth(), this->GetHeight());
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x = y = 0;
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}
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}
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srect.SetRect(aULLocation->x,aULLocation->y,aTheImage->GetWidth(),aTheImage->GetHeight());
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srect.SetRect(aULLocation->x, aULLocation->y, aTheImage->GetWidth(), aTheImage->GetHeight());
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drect = arect;
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if(irect.IntersectRect(srect,drect))
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{
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if (irect.IntersectRect(srect, drect))
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{
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// calculate destination information
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dlinespan = this->GetLineStride();
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numbytes = this->CalcBytesSpan(irect.width);
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numlines = irect.height;
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startx = irect.x;
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starty = this->GetHeight()-(irect.y+irect.height);
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d1 = mImageBits +(starty*dlinespan)+(3*startx);
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starty = this->GetHeight() - (irect.y + irect.height);
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d1 = mImageBits + (starty * dlinespan) + (3 * startx);
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// get the intersection relative to the source rectangle
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srect.SetRect(0,0,aTheImage->GetWidth(),aTheImage->GetHeight());
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srect.SetRect(0, 0, aTheImage->GetWidth(), aTheImage->GetHeight());
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drect = irect;
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drect.MoveBy(-aULLocation->x,-aULLocation->y);
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drect.MoveBy(-aULLocation->x, -aULLocation->y);
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drect.IntersectRect(drect,srect);
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slinespan = aTheImage->GetLineStride();
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startx = drect.x;
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starty = aTheImage->GetHeight() - (drect.y+drect.height);
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s1 = aTheImage->GetBits() + (starty*slinespan)+(3*startx);
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starty = aTheImage->GetHeight() - (drect.y + drect.height);
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s1 = aTheImage->GetBits() + (starty * slinespan) + (3 * startx);
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if(mAlphaBits)
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{
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if (mAlphaBits)
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{
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mlinespan = this->GetAlphaLineStride();
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m1 = mAlphaBits;
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numbytes/=3;
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numbytes /= 3;
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// now go thru the image and blend (remember, its bottom upwards)
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for(y=0;y<numlines;y++)
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{
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for (y = 0; y < numlines; y++)
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{
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s2 = s1;
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d2 = d1;
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m2 = m1;
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for(x=0;x<numbytes;x++)
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{
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a1 = (*m2)/256.0;
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a2 = 1.0-a1;
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*d2 = (*d2)*a1 + (*s2)*a2;
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for (x = 0; x < numbytes; x++)
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{
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a1 = (*m2) * (1.0 / 256.0);
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a2 = 1.0 - a1;
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*d2 = (PRUint8)((*d2) * a1 + (*s2) * a2);
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d2++;
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s2++;
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*d2 = (*d2)*a1 + (*s2)*a2;
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*d2 = (PRUint8)((*d2) * a1 + (*s2) * a2);
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d2++;
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s2++;
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*d2 = (*d2)*a1 + (*s2)*a2;
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*d2 = (PRUint8)((*d2) * a1 + (*s2) * a2);
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d2++;
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s2++;
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m2++;
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}
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s1 += slinespan;
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d1 += dlinespan;
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m1 += mlinespan;
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}
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}
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else
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{
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// now go thru the image and blend (remember, its bottom upwards)
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for(y=0;y<numlines;y++)
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{
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s2 = s1;
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d2 = d1;
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for(x=0;x<numbytes;x++)
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{
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*d2 = (*d2+*s2)/2;
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d2++;
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s2++;
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}
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s1 += slinespan;
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d1 += dlinespan;
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}
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}
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}
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else
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{
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// now go thru the image and blend (remember, its bottom upwards)
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for(y = 0; y < numlines; y++)
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{
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s2 = s1;
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d2 = d1;
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for(x = 0; x < numbytes; x++)
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{
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*d2 = (*d2 + *s2) >> 1;
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d2++;
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s2++;
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}
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s1 += slinespan;
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d1 += dlinespan;
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}
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}
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}
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}
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//------------------------------------------------------------
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PRBool
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nsImageWin::MakePalette()
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PRBool nsImageWin::MakePalette()
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{
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// makes a logical palette (mHPalette) from the DIB's color table
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// this palette will be selected and realized prior to drawing the DIB
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if (mNumPalleteColors == 0)
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return PR_FALSE;
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if (mHPalette != nsnull)
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::DeleteObject(mHPalette);
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@ -368,16 +371,17 @@ nsImageWin::MakePalette()
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LPRGBQUAD pDibQuad = (LPRGBQUAD) mColorTable;
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for (int i = 0; i < mNumPalleteColors; i++)
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{
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{
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pLogPal->palPalEntry[i].peRed = pDibQuad->rgbRed;
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pLogPal->palPalEntry[i].peGreen = pDibQuad->rgbGreen;
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pLogPal->palPalEntry[i].peBlue = pDibQuad->rgbBlue;
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pLogPal->palPalEntry[i].peFlags = 0;
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pDibQuad++;
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}
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}
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mHPalette = ::CreatePalette(pLogPal);
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delete pLogPal;
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return PR_TRUE;
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}
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@ -418,19 +422,21 @@ PRBool nsImageWin :: SetSystemPalette(HDC* aHdc)
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// creates an optimized bitmap, or HBITMAP
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nsresult nsImageWin :: Optimize(nsDrawingSurface aSurface)
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{
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nsRenderingContextWin *therc = (nsRenderingContextWin*)aSurface;
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HDC the_hdc;
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nsRenderingContextWin *therc = (nsRenderingContextWin*)aSurface;
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HDC the_hdc;
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if ((therc != nsnull) && !IsOptimized() && (mSizeImage > 0))
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{
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{
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the_hdc = therc->getDrawingSurface();
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if(mOptimizeDC == nsnull)
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if (mOptimizeDC == nsnull)
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mOptimizeDC = therc->CreateOptimizeSurface();
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mHBitmap = ::CreateDIBitmap(the_hdc,mBHead,CBM_INIT,mImageBits,(LPBITMAPINFO)mBHead,DIB_RGB_COLORS);
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mHBitmap = ::CreateDIBitmap(the_hdc, mBHead, CBM_INIT, mImageBits, (LPBITMAPINFO)mBHead, DIB_RGB_COLORS);
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mIsOptimized = PR_TRUE;
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CleanUp(PR_FALSE);
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}
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||||
}
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||||
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return NS_OK;
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}
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@ -463,7 +469,7 @@ void nsImageWin :: ComputePaletteSize(PRIntn nBitCount)
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|||
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PRInt32 nsImageWin :: CalcBytesSpan(PRUint32 aWidth)
|
||||
{
|
||||
PRInt32 spanbytes;
|
||||
PRInt32 spanbytes;
|
||||
|
||||
spanbytes = (aWidth * mBHead->biBitCount) / 32;
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||||
|
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@ -479,14 +485,13 @@ PRInt32 spanbytes;
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|||
|
||||
void nsImageWin :: ComputeMetrics()
|
||||
{
|
||||
|
||||
mSizeImage = mBHead->biSizeImage;
|
||||
|
||||
if (mSizeImage == 0)
|
||||
{
|
||||
{
|
||||
mRowBytes = CalcBytesSpan(mBHead->biWidth);
|
||||
mSizeImage = mRowBytes * mBHead->biHeight; // no compression
|
||||
}
|
||||
}
|
||||
|
||||
// set the color table in the info header
|
||||
|
||||
|
|
@ -499,12 +504,14 @@ void nsImageWin :: ComputeMetrics()
|
|||
void nsImageWin :: CleanUp(PRBool aCleanUpAll)
|
||||
{
|
||||
// this only happens when we need to clean up everything
|
||||
if(aCleanUpAll)
|
||||
{
|
||||
if (aCleanUpAll == PR_TRUE)
|
||||
{
|
||||
if (mAlphaBits != nsnull)
|
||||
delete [] mAlphaBits;
|
||||
|
||||
if (mHBitmap != nsnull)
|
||||
::DeleteObject(mHBitmap);
|
||||
|
||||
if(mBHead)
|
||||
delete[] mBHead;
|
||||
|
||||
|
|
@ -513,24 +520,28 @@ void nsImageWin :: CleanUp(PRBool aCleanUpAll)
|
|||
mAlphaBits = nsnull;
|
||||
mIsOptimized = PR_FALSE;
|
||||
mBHead = nsnull;
|
||||
if (mImageBits != nsnull)
|
||||
delete [] mImageBits;
|
||||
mImageBits = nsnull;
|
||||
|
||||
if (mImageBits != nsnull)
|
||||
{
|
||||
delete [] mImageBits;
|
||||
mImageBits = nsnull;
|
||||
}
|
||||
}
|
||||
|
||||
// clean up the DIB
|
||||
if (mImageBits != nsnull)
|
||||
delete [] mImageBits;
|
||||
|
||||
if (mHPalette != nsnull)
|
||||
::DeleteObject(mHPalette);
|
||||
|
||||
// Should be an ISupports, so we can release
|
||||
if (mColorMap != nsnull)
|
||||
{
|
||||
{
|
||||
if (mColorMap->Index != nsnull)
|
||||
delete [] mColorMap->Index;
|
||||
delete mColorMap;
|
||||
}
|
||||
}
|
||||
|
||||
mColorTable = nsnull;
|
||||
mNumPalleteColors = -1;
|
||||
|
|
@ -540,6 +551,3 @@ void nsImageWin :: CleanUp(PRBool aCleanUpAll)
|
|||
mImageBits = nsnull;
|
||||
mColorMap = nsnull;
|
||||
}
|
||||
|
||||
//------------------------------------------------------------
|
||||
|
||||
|
|
|
|||
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