зеркало из https://github.com/mozilla/pjs.git
Cache alpha-clip pixmap across rendering calls so that transparent gifs render faster; flush cache when bits are updated so that transparent animated gifs don't break
This commit is contained in:
kipp%netscape.com
Родитель
d8b00d7f1f
Коммит
f562a1eb60
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@ -26,6 +26,8 @@
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#define IsFlagSet(a,b) (a & b)
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#undef CHEAP_PERFORMANCE_MEASUREMENT
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static NS_DEFINE_IID(kIImageIID, NS_IIMAGE_IID);
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//------------------------------------------------------------
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@ -61,16 +63,22 @@ NS_IMPL_ISUPPORTS(nsImageGTK, kIImageIID);
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//------------------------------------------------------------
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nsresult nsImageGTK::Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMaskRequirements aMaskRequirements)
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nsresult
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nsImageGTK::Init(PRInt32 aWidth, PRInt32 aHeight,
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PRInt32 aDepth, nsMaskRequirements aMaskRequirements)
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{
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g_return_val_if_fail ((aWidth != 0) || (aHeight != 0), NS_ERROR_FAILURE);
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if (nsnull != mImageBits)
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if (nsnull != mImageBits) {
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delete[] (PRUint8*)mImageBits;
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mImageBits = nsnull;
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}
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if (nsnull != mAlphaBits) {
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delete[] (PRUint8*)mAlphaBits;
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mAlphaBits = nsnull;
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gdk_pixmap_unref(mAlphaPixmap);
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mAlphaPixmap = nsnull;
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}
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if (24 == aDepth) {
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@ -107,7 +115,6 @@ nsresult nsImageGTK::Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMask
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mAlphaBits = new unsigned char[mAlphaRowBytes * aHeight];
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mAlphaWidth = aWidth;
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mAlphaHeight = aHeight;
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mAlphaPixmap = gdk_pixmap_new(nsnull, mWidth, mHeight, 1);
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break;
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case nsMaskRequirements_kNeeds8Bit:
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@ -125,10 +132,103 @@ nsresult nsImageGTK::Init(PRInt32 aWidth, PRInt32 aHeight, PRInt32 aDepth,nsMask
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void nsImageGTK::ComputMetrics()
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{
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mRowBytes = CalcBytesSpan(mWidth);
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mSizeImage = mRowBytes * mHeight;
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}
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PRInt32
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nsImageGTK::GetBytesPix()
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{
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NS_NOTYETIMPLEMENTED("somebody called this thang");
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return 0;/* XXX */
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}
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PRInt32
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nsImageGTK::GetHeight()
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{
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return mHeight;
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}
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PRInt32
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nsImageGTK::GetWidth()
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{
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return mWidth;
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}
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PRUint8*
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nsImageGTK::GetBits()
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{
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return mImageBits;
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}
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void*
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nsImageGTK::GetBitInfo()
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{
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return nsnull;
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}
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PRInt32
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nsImageGTK::GetLineStride()
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{
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return mRowBytes;
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}
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nsColorMap*
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nsImageGTK::GetColorMap()
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{
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return nsnull;
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}
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PRBool
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nsImageGTK::IsOptimized()
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{
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return PR_TRUE;
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}
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PRUint8*
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nsImageGTK::GetAlphaBits()
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{
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return mAlphaBits;
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}
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PRInt32
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nsImageGTK::GetAlphaWidth()
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{
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return mAlphaWidth;
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}
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PRInt32
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nsImageGTK::GetAlphaHeight()
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{
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return mAlphaHeight;
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}
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PRInt32
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nsImageGTK::GetAlphaLineStride()
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{
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return mAlphaRowBytes;
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}
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nsIImage*
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nsImageGTK::DuplicateImage()
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{
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return nsnull;
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}
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void
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nsImageGTK::SetAlphaLevel(PRInt32 aAlphaLevel)
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{
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}
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PRInt32
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nsImageGTK::GetAlphaLevel()
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{
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return 0;
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}
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void
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nsImageGTK::MoveAlphaMask(PRInt32 aX, PRInt32 aY)
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{
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}
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//------------------------------------------------------------
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@ -148,19 +248,30 @@ PRInt32 nsImageGTK::CalcBytesSpan(PRUint32 aWidth)
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//------------------------------------------------------------
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// set up the palette to the passed in color array, RGB only in this array
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void nsImageGTK::ImageUpdated(nsIDeviceContext *aContext, PRUint8 aFlags, nsRect *aUpdateRect)
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void
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nsImageGTK::ImageUpdated(nsIDeviceContext *aContext,
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PRUint8 aFlags,
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nsRect *aUpdateRect)
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{
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if (IsFlagSet(nsImageUpdateFlags_kBitsChanged, aFlags)){
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if (nsnull != mAlphaPixmap) {
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gdk_pixmap_unref(mAlphaPixmap);
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mAlphaPixmap = nsnull;
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}
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}
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}
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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#define HAIRY_CONVERT_888
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#endif
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#ifdef CHEAP_PERFORMANCE_MEASUREMENT
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static PRTime gConvertTime, gStartTime, gPixmapTime, gEndTime;
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#endif
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#ifdef HAIRY_CONVERT_888
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#include "prtime.h"
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// This is really ugly. Mozilla uses BGR image data, while
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// gdk_rgb uses RGB data. So before we draw an image
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@ -170,14 +281,14 @@ void nsImageGTK::ImageUpdated(nsIDeviceContext *aContext, PRUint8 aFlags, nsRect
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//
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static void
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moz_gdk_draw_bgr_image (GdkDrawable *drawable,
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GdkGC *gc,
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gint x,
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gint y,
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gint width,
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gint height,
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GdkRgbDither dith,
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guchar *rgb_buf,
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gint rowstride)
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GdkGC *gc,
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gint x,
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gint y,
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gint width,
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gint height,
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GdkRgbDither dith,
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guchar *rgb_buf,
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gint rowstride)
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{
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int tx, ty;
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@ -187,6 +298,7 @@ moz_gdk_draw_bgr_image (GdkDrawable *drawable,
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guchar *bptr, *bp2;
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int r, g, b;
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bpl = (width * 3 + 3) & ~0x3;
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tmp_buf = (guchar *)g_malloc (bpl * height);
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@ -250,6 +362,10 @@ moz_gdk_draw_bgr_image (GdkDrawable *drawable,
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obuf += bpl;
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}
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#ifdef CHEAP_PERFORMANCE_MEASUREMENT
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gConvertTime = PR_Now();
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#endif
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gdk_draw_rgb_image (drawable, gc, x, y, width, height,
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dith, tmp_buf, bpl);
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@ -311,9 +427,10 @@ moz_gdk_draw_bgr_image (GdkDrawable *drawable,
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//------------------------------------------------------------
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// Draw the bitmap, this method has a source and destination coordinates
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NS_IMETHODIMP nsImageGTK::Draw(nsIRenderingContext &aContext, nsDrawingSurface aSurface,
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PRInt32 aSX, PRInt32 aSY, PRInt32 aSWidth, PRInt32 aSHeight,
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PRInt32 aDX, PRInt32 aDY, PRInt32 aDWidth, PRInt32 aDHeight)
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NS_IMETHODIMP
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nsImageGTK::Draw(nsIRenderingContext &aContext, nsDrawingSurface aSurface,
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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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g_return_val_if_fail ((aSurface != nsnull), NS_ERROR_FAILURE);
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@ -332,14 +449,22 @@ NS_IMETHODIMP nsImageGTK::Draw(nsIRenderingContext &aContext, nsDrawingSurface a
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//------------------------------------------------------------
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// Draw the bitmap, this draw just has destination coordinates
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NS_IMETHODIMP nsImageGTK::Draw(nsIRenderingContext &aContext,
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nsDrawingSurface aSurface,
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PRInt32 aX, PRInt32 aY,
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PRInt32 aWidth, PRInt32 aHeight)
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NS_IMETHODIMP
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nsImageGTK::Draw(nsIRenderingContext &aContext,
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nsDrawingSurface aSurface,
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PRInt32 aX, PRInt32 aY,
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PRInt32 aWidth, PRInt32 aHeight)
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{
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g_return_val_if_fail ((aSurface != nsnull), NS_ERROR_FAILURE);
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nsDrawingSurfaceGTK *drawing = (nsDrawingSurfaceGTK*) aSurface;
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// XXX kipp: this is temporary code until we eliminate the
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// width/height arguments from the draw method.
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if ((aWidth != mWidth) || (aHeight != mHeight)) {
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aWidth = mWidth;
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aHeight = mHeight;
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}
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nsDrawingSurfaceGTK* drawing = (nsDrawingSurfaceGTK*) aSurface;
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XImage *x_image = nsnull;
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Pixmap pixmap = 0;
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@ -348,62 +473,100 @@ NS_IMETHODIMP nsImageGTK::Draw(nsIRenderingContext &aContext,
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GC gc;
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XGCValues gcv;
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if (mAlphaBits != nsnull)
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{
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/* get the X primitives */
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dpy = GDK_WINDOW_XDISPLAY(mAlphaPixmap);
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visual = GDK_VISUAL_XVISUAL(gdk_rgb_get_visual());
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/* this is the depth of the pixmap that we are going to draw to.
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It's always a bitmap. We're doing alpha here folks. */
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x_image = XCreateImage(dpy, visual,
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1, /* visual depth...1 for bitmaps */
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XYPixmap,
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0, /* x offset, XXX fix this */
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(char *)mAlphaBits, /* cast away our sign. */
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mWidth,
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mHeight,
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32,/* bitmap pad */
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mAlphaRowBytes); /* bytes per line */
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x_image->bits_per_pixel=1;
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/* Image library always places pixels left-to-right MSB to LSB */
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x_image->bitmap_bit_order = MSBFirst;
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/* This definition doesn't depend on client byte ordering
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because the image library ensures that the bytes in
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bitmask data are arranged left to right on the screen,
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low to high address in memory. */
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x_image->byte_order = MSBFirst;
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#ifdef CHEAP_PERFORMANCE_MEASUREMENT
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gStartTime = gPixmapTime = PR_Now();
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#endif
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// Create gc clip-mask on demand
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if ((mAlphaBits != nsnull) && (nsnull == mAlphaPixmap))
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{
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mAlphaPixmap = gdk_pixmap_new(nsnull, aWidth, aHeight, 1);
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/* get the X primitives */
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dpy = GDK_WINDOW_XDISPLAY(mAlphaPixmap);
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/* this is the depth of the pixmap that we are going to draw to.
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It's always a bitmap. We're doing alpha here folks. */
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visual = GDK_VISUAL_XVISUAL(gdk_rgb_get_visual());
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// Make an image out of the alpha-bits created by the image library
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x_image = XCreateImage(dpy, visual,
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1, /* visual depth...1 for bitmaps */
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XYPixmap,
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0, /* x offset, XXX fix this */
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(char *)mAlphaBits, /* cast away our sign. */
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aWidth,
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aHeight,
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32,/* bitmap pad */
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mAlphaRowBytes); /* bytes per line */
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x_image->bits_per_pixel=1;
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/* Image library always places pixels left-to-right MSB to LSB */
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x_image->bitmap_bit_order = MSBFirst;
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/* This definition doesn't depend on client byte ordering
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because the image library ensures that the bytes in
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bitmask data are arranged left to right on the screen,
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low to high address in memory. */
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x_image->byte_order = MSBFirst;
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#if defined(IS_LITTLE_ENDIAN)
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// no, it's still MSB XXX check on this!!
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// x_image->byte_order = LSBFirst;
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// no, it's still MSB XXX check on this!!
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// x_image->byte_order = LSBFirst;
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#elif defined (IS_BIG_ENDIAN)
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x_image->byte_order = MSBFirst;
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x_image->byte_order = MSBFirst;
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#else
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#error ERROR! Endianness is unknown;
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#endif
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pixmap = GDK_WINDOW_XWINDOW(mAlphaPixmap);
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memset(&gcv, 0, sizeof(XGCValues));
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gcv.function = GXcopy;
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gc = XCreateGC(dpy, pixmap, GCFunction, &gcv);
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XPutImage(dpy, pixmap, gc, x_image, 0, 0, 0, 0,
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mWidth, mHeight);
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// Write into the pixemap that is underneath gdk's mAlphaPixmap
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// the image we just created.
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pixmap = GDK_WINDOW_XWINDOW(mAlphaPixmap);
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memset(&gcv, 0, sizeof(XGCValues));
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gcv.function = GXcopy;
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gc = XCreateGC(dpy, pixmap, GCFunction, &gcv);
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XPutImage(dpy, pixmap, gc, x_image, 0, 0, 0, 0,
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aWidth, aHeight);
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XFreeGC(dpy, gc);
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// Now we are done with the temporary image
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x_image->data = 0; /* Don't free the IL_Pixmap's bits. */
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XDestroyImage(x_image);
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#ifdef CHEAP_PERFORMANCE_MEASUREMENT
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gPixmapTime = PR_Now();
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#endif
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}
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if (nsnull != mAlphaPixmap)
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{
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// Setup gc to use the given alpha-pixmap for clipping
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gdk_gc_set_clip_mask(drawing->gc, mAlphaPixmap);
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gdk_gc_set_clip_origin(drawing->gc, aX, aY);
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}
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XFreeGC(dpy, gc);
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gdk_gc_set_clip_mask(drawing->gc, mAlphaPixmap);
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gdk_gc_set_clip_origin(drawing->gc, aX, aY);
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}
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moz_gdk_draw_bgr_image (drawing->drawable,
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drawing->gc,
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aX, aY, mWidth, mHeight,
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aX, aY, aWidth, aHeight,
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GDK_RGB_DITHER_MAX,
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mImageBits, mRowBytes);
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if (mAlphaBits != nsnull)
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{
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gdk_gc_set_clip_origin(drawing->gc, 0, 0);
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gdk_gc_set_clip_mask(drawing->gc, nsnull);
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x_image->data = 0; /* Don't free the IL_Pixmap's bits. */
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XDestroyImage(x_image);
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}
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if (mAlphaPixmap != nsnull)
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{
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// Revert gc to its old clip-mask and origin
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gdk_gc_set_clip_origin(drawing->gc, 0, 0);
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gdk_gc_set_clip_mask(drawing->gc, nsnull);
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}
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#ifdef CHEAP_PERFORMANCE_MEASUREMENT
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gEndTime = PR_Now();
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printf("nsImageGTK: for %d,%d image, total=%lld pixmap=%lld, cvt=%lld\n",
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aWidth, aHeight,
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gEndTime - gStartTime,
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gPixmapTime - gStartTime,
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gConvertTime - gPixmapTime);
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#endif
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return NS_OK;
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}
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