gecko-dev/gfx/cairo/quartz-get-image-surface.patch

? gfx/cairo/quartz-get-image-surface.patch
Index: gfx/cairo/README
===================================================================
RCS file: /cvsroot/mozilla/gfx/cairo/README,v
retrieving revision 1.70
diff -u -p -8 -r1.70 README
--- gfx/cairo/README	26 Jan 2008 00:25:22 -0000	1.70
+++ gfx/cairo/README	27 Jan 2008 23:52:34 -0000
@@ -23,8 +23,10 @@ max-font-size.patch: Clamp freetype font
 
 win32-logical-font-scale.patch: set CAIRO_WIN32_LOGICAL_FONT_SCALE to 1
 
 nonfatal-assertions.patch: Make assertions non-fatal
 
 endian.patch: include cairo-platform.h for endian macros
 
 fixed-24-8.patch: Switch fixed point mode from 16.16 to 24.8
+
+quartz-get-image-surface.patch: Add cairo_quartz_get_image_surface API analogous to the win32 one
Index: gfx/cairo/cairo/src/cairo-quartz-private.h
===================================================================
RCS file: /cvsroot/mozilla/gfx/cairo/cairo/src/cairo-quartz-private.h,v
retrieving revision 1.19
diff -u -p -8 -r1.19 cairo-quartz-private.h
--- gfx/cairo/cairo/src/cairo-quartz-private.h	8 Dec 2007 07:09:15 -0000	1.19
+++ gfx/cairo/cairo/src/cairo-quartz-private.h	27 Jan 2008 23:52:34 -0000
@@ -43,16 +43,18 @@
 #ifdef CAIRO_HAS_QUARTZ_SURFACE
 #include <cairo-quartz.h>
 
 typedef struct cairo_quartz_surface {
     cairo_surface_t base;
 
     void *imageData;
 
+    cairo_surface_t *imageSurfaceEquiv;
+
     CGContextRef cgContext;
     CGAffineTransform cgContextBaseCTM;
 
     cairo_rectangle_int_t extents;
 
     /* These are stored while drawing operations are in place, set up
      * by quartz_setup_source() and quartz_finish_source()
      */
Index: gfx/cairo/cairo/src/cairo-quartz-surface.c
===================================================================
RCS file: /cvsroot/mozilla/gfx/cairo/cairo/src/cairo-quartz-surface.c,v
retrieving revision 1.37
diff -u -p -8 -r1.37 cairo-quartz-surface.c
--- gfx/cairo/cairo/src/cairo-quartz-surface.c	26 Jan 2008 00:25:15 -0000	1.37
+++ gfx/cairo/cairo/src/cairo-quartz-surface.c	27 Jan 2008 23:52:35 -0000
@@ -890,24 +890,30 @@ _cairo_quartz_get_image (cairo_quartz_su
     unsigned char *imageData;
     cairo_image_surface_t *isurf;
 
     if (IS_EMPTY(surface)) {
 	*image_out = (cairo_image_surface_t*) cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0);
 	return CAIRO_STATUS_SUCCESS;
     }
 
+    if (surface->imageSurfaceEquiv) {
+	*image_out = (cairo_image_surface_t*) cairo_surface_reference(surface->imageSurfaceEquiv);
+	return CAIRO_STATUS_SUCCESS;
+    }
+
     if (CGBitmapContextGetBitsPerPixel(surface->cgContext) != 0) {
 	unsigned int stride;
 	unsigned int bitinfo;
 	unsigned int bpc, bpp;
 	CGColorSpaceRef colorspace;
 	unsigned int color_comps;
 
 	imageData = (unsigned char *) CGBitmapContextGetData(surface->cgContext);
+
 #ifdef USE_10_3_WORKAROUNDS
 	bitinfo = CGBitmapContextGetAlphaInfo (surface->cgContext);
 #else
 	bitinfo = CGBitmapContextGetBitmapInfo (surface->cgContext);
 #endif
 	stride = CGBitmapContextGetBytesPerRow (surface->cgContext);
 	bpp = CGBitmapContextGetBitsPerPixel (surface->cgContext);
 	bpc = CGBitmapContextGetBitsPerComponent (surface->cgContext);
@@ -982,16 +988,21 @@ _cairo_quartz_surface_finish (void *abst
 
     /* Restore our saved gstate that we use to reset clipping */
     CGContextRestoreGState (surface->cgContext);
 
     CGContextRelease (surface->cgContext);
 
     surface->cgContext = NULL;
 
+    if (surface->imageSurfaceEquiv) {
+	cairo_surface_destroy (surface->imageSurfaceEquiv);
+	surface->imageSurfaceEquiv = NULL;
+    }
+
     if (surface->imageData) {
 	free (surface->imageData);
 	surface->imageData = NULL;
     }
 
     return CAIRO_STATUS_SUCCESS;
 }
 
@@ -1856,16 +1867,17 @@ _cairo_quartz_surface_create_internal (C
      * required for proper behaviour of intersect_clip_path(NULL)
      */
     CGContextSaveGState (cgContext);
 
     surface->cgContext = cgContext;
     surface->cgContextBaseCTM = CGContextGetCTM (cgContext);
 
     surface->imageData = NULL;
+    surface->imageSurfaceEquiv = NULL;
 
     return surface;
 }
 
 /**
  * cairo_quartz_surface_create_for_cg_context
  * @cgContext: the existing CGContext for which to create the surface
  * @width: width of the surface, in pixels
@@ -2010,16 +2022,17 @@ cairo_quartz_surface_create (cairo_forma
     if (surf->base.status) {
 	CGContextRelease (cgc);
 	free (imageData);
 	// create_internal will have set an error
 	return (cairo_surface_t*) surf;
     }
 
     surf->imageData = imageData;
+    surf->imageSurfaceEquiv = cairo_image_surface_create_for_data (imageData, format, width, height, stride);
 
     return (cairo_surface_t *) surf;
 }
 
 /**
  * cairo_quartz_surface_get_cg_context
  * @surface: the Cairo Quartz surface
  *
@@ -2137,8 +2150,19 @@ quartz_surface_to_png (cairo_quartz_surf
     }
 
     ExportCGImageToPNGFile(imgref, dest);
 
     CGImageRelease(imgref);
 #endif
 }
 
+cairo_surface_t *
+cairo_quartz_surface_get_image (cairo_surface_t *surface)
+{
+    cairo_quartz_surface_t *quartz = (cairo_quartz_surface_t*)surface;
+
+    if (cairo_surface_get_type(surface) != CAIRO_SURFACE_TYPE_QUARTZ)
+	return NULL;
+
+    return quartz->imageSurfaceEquiv;
+}
+
Index: gfx/cairo/cairo/src/cairo-quartz.h
===================================================================
RCS file: /cvsroot/mozilla/gfx/cairo/cairo/src/cairo-quartz.h,v
retrieving revision 1.11
diff -u -p -8 -r1.11 cairo-quartz.h
--- gfx/cairo/cairo/src/cairo-quartz.h	4 Apr 2007 01:09:15 -0000	1.11
+++ gfx/cairo/cairo/src/cairo-quartz.h	27 Jan 2008 23:52:35 -0000
@@ -52,15 +52,18 @@ cairo_quartz_surface_create (cairo_forma
 cairo_public cairo_surface_t *
 cairo_quartz_surface_create_for_cg_context (CGContextRef cgContext,
                                             unsigned int width,
                                             unsigned int height);
 
 cairo_public CGContextRef
 cairo_quartz_surface_get_cg_context (cairo_surface_t *surface);
 
+cairo_public cairo_surface_t *
+cairo_quartz_surface_get_image (cairo_surface_t *surface);
+
 CAIRO_END_DECLS
 
 #else  /* CAIRO_HAS_QUARTZ_SURFACE */
 # error Cairo was not compiled with support for the quartz backend
 #endif /* CAIRO_HAS_QUARTZ_SURFACE */
 
 #endif /* CAIRO_QUARTZ_H */
Index: gfx/cairo/cairo/src/cairo-rename.h
===================================================================
RCS file: /cvsroot/mozilla/gfx/cairo/cairo/src/cairo-rename.h,v
retrieving revision 1.21
diff -u -p -8 -r1.21 cairo-rename.h
--- gfx/cairo/cairo/src/cairo-rename.h	26 Jan 2008 00:25:15 -0000	1.21
+++ gfx/cairo/cairo/src/cairo-rename.h	27 Jan 2008 23:52:35 -0000
@@ -164,16 +164,17 @@
 #define cairo_ps_surface_restrict_to_level _moz_cairo_ps_surface_restrict_to_level
 #define cairo_ps_surface_set_eps _moz_cairo_ps_surface_set_eps
 #define cairo_ps_surface_set_size _moz_cairo_ps_surface_set_size
 #define cairo_push_group _moz_cairo_push_group
 #define cairo_push_group_with_content _moz_cairo_push_group_with_content
 #define cairo_quartz_surface_create _moz_cairo_quartz_surface_create
 #define cairo_quartz_surface_create_for_cg_context _moz_cairo_quartz_surface_create_for_cg_context
 #define cairo_quartz_surface_get_cg_context _moz_cairo_quartz_surface_get_cg_context
+#define cairo_quartz_surface_get_image _moz_cairo_quartz_surface_get_image
 #define cairo_rectangle _moz_cairo_rectangle
 #define cairo_rectangle_list_destroy _moz_cairo_rectangle_list_destroy
 #define cairo_reference _moz_cairo_reference
 #define cairo_rel_curve_to _moz_cairo_rel_curve_to
 #define cairo_rel_line_to _moz_cairo_rel_line_to
 #define cairo_rel_move_to _moz_cairo_rel_move_to
 #define cairo_reset_clip _moz_cairo_reset_clip
 #define cairo_restore _moz_cairo_restore
Index: gfx/src/thebes/nsThebesImage.cpp
===================================================================
RCS file: /cvsroot/mozilla/gfx/src/thebes/nsThebesImage.cpp,v
retrieving revision 1.57
diff -u -p -8 -r1.57 nsThebesImage.cpp
--- gfx/src/thebes/nsThebesImage.cpp	10 Jan 2008 22:13:13 -0000	1.57
+++ gfx/src/thebes/nsThebesImage.cpp	27 Jan 2008 23:52:35 -0000
@@ -106,33 +106,42 @@ nsThebesImage::Init(PRInt32 aWidth, PRIn
         default:
             format = gfxImageSurface::ImageFormatRGB24;
             mAlphaDepth = 0;
             break;
     }
 
     mFormat = format;
 
-#ifdef XP_WIN
+#if defined(XP_WIN)
     if (!ShouldUseImageSurfaces()) {
         mWinSurface = new gfxWindowsSurface(gfxIntSize(mWidth, mHeight), format);
         if (mWinSurface && mWinSurface->CairoStatus() == 0) {
             // no error
             mImageSurface = mWinSurface->GetImageSurface();
         }
     }
 
-    if (!mImageSurface) {
+    if (!mImageSurface)
         mWinSurface = nsnull;
-        mImageSurface = new gfxImageSurface(gfxIntSize(mWidth, mHeight), format);
+#elif defined(XP_MACOSX)
+    if (!ShouldUseImageSurfaces()) {
+        mQuartzSurface = new gfxQuartzSurface(gfxSize(mWidth, mHeight), format);
+        if (mQuartzSurface && mQuartzSurface->CairoStatus() == 0) {
+            mImageSurface = mQuartzSurface->GetImageSurface();
+        }
     }
-#else
-    mImageSurface = new gfxImageSurface(gfxIntSize(mWidth, mHeight), format);
+
+    if (!mImageSurface)
+        mQuartzSurface = nsnull;
 #endif
 
+    if (!mImageSurface)
+        mImageSurface = new gfxImageSurface(gfxIntSize(mWidth, mHeight), format);
+
     if (!mImageSurface || mImageSurface->CairoStatus()) {
         mImageSurface = nsnull;
         // guess
         return NS_ERROR_OUT_OF_MEMORY;
     }
 
     mStride = mImageSurface->Stride();
 
@@ -293,24 +302,32 @@ nsThebesImage::Optimize(nsIDeviceContext
         }
         if (!mOptSurface && !mFormatChanged) {
             // just use the DIB if the format has not changed
             mOptSurface = mWinSurface;
         }
     }
 #endif
 
+#ifdef XP_MACOSX
+    if (mQuartzSurface && !mFormatChanged)
+        mOptSurface = mQuartzSurface;
+#endif
+
     if (mOptSurface == nsnull)
         mOptSurface = gfxPlatform::GetPlatform()->OptimizeImage(mImageSurface, mFormat);
 
     if (mOptSurface) {
         mImageSurface = nsnull;
 #ifdef XP_WIN
         mWinSurface = nsnull;
 #endif
+#ifdef XP_MACOSX
+        mQuartzSurface = nsnull;
+#endif
     }
 
     return NS_OK;
 }
 
 nsColorMap *
 nsThebesImage::GetColorMap()
 {
Index: gfx/src/thebes/nsThebesImage.h
===================================================================
RCS file: /cvsroot/mozilla/gfx/src/thebes/nsThebesImage.h,v
retrieving revision 1.17
diff -u -p -8 -r1.17 nsThebesImage.h
--- gfx/src/thebes/nsThebesImage.h	27 Nov 2007 09:35:18 -0000	1.17
+++ gfx/src/thebes/nsThebesImage.h	27 Jan 2008 23:52:35 -0000
@@ -39,18 +39,20 @@
 #ifndef _NSTHEBESIMAGE_H_
 #define _NSTHEBESIMAGE_H_
 
 #include "nsIImage.h"
 
 #include "gfxColor.h"
 #include "gfxASurface.h"
 #include "gfxImageSurface.h"
-#ifdef XP_WIN
+#if defined(XP_WIN)
 #include "gfxWindowsSurface.h"
+#elif defined(XP_MACOSX)
+#include "gfxQuartzSurface.h"
 #endif
 
 class nsThebesImage : public nsIImage
 {
 public:
     nsThebesImage();
     ~nsThebesImage();
 
@@ -92,17 +94,23 @@ public:
         *aSurface = ThebesSurface();
         NS_ADDREF(*aSurface);
         return NS_OK;
     }
 
     gfxASurface* ThebesSurface() {
         if (mOptSurface)
             return mOptSurface;
-
+#if defined(XP_WIN)
+        if (mWinSurface)
+            return mWinSurface;
+#elif defined(XP_MACOSX)
+        if (mQuartzSurface)
+            return mQuartzSurface;
+#endif
         return mImageSurface;
     }
 
     void SetHasNoAlpha();
 
 protected:
     static PRBool AllowedImageSize(PRInt32 aWidth, PRInt32 aHeight) {
         NS_ASSERTION(aWidth > 0, "invalid image width");
@@ -146,18 +154,20 @@ protected:
 #ifdef XP_WIN
     PRPackedBool mIsDDBSurface;
 #endif
 
     gfxRGBA mSinglePixelColor;
 
     nsRefPtr<gfxImageSurface> mImageSurface;
     nsRefPtr<gfxASurface> mOptSurface;
-#ifdef XP_WIN
+#if defined(XP_WIN)
     nsRefPtr<gfxWindowsSurface> mWinSurface;
+#elif defined(XP_MACOSX)
+    nsRefPtr<gfxQuartzSurface> mQuartzSurface;
 #endif
 
     PRUint8 mAlphaDepth;
 
     // this function should return true if
     // we should (temporarily) not allocate any
     // platform native surfaces and instead use
     // image surfaces for everything.
Index: gfx/thebes/public/gfxQuartzSurface.h
===================================================================
RCS file: /cvsroot/mozilla/gfx/thebes/public/gfxQuartzSurface.h,v
retrieving revision 1.11
diff -u -p -8 -r1.11 gfxQuartzSurface.h
--- gfx/thebes/public/gfxQuartzSurface.h	7 Jan 2008 00:50:18 -0000	1.11
+++ gfx/thebes/public/gfxQuartzSurface.h	27 Jan 2008 23:52:36 -0000
@@ -35,16 +35,17 @@
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
 
 #ifndef GFX_QUARTZSURFACE_H
 #define GFX_QUARTZSURFACE_H
 
 #include "gfxASurface.h"
+#include "gfxImageSurface.h"
 
 #include <Carbon/Carbon.h>
 
 class THEBES_API gfxQuartzSurface : public gfxASurface {
 public:
     gfxQuartzSurface(const gfxSize& size, gfxImageFormat format, PRBool aForPrinting = PR_FALSE);
     gfxQuartzSurface(CGContextRef context, const gfxSize& size, PRBool aForPrinting = PR_FALSE);
     gfxQuartzSurface(cairo_surface_t *csurf, PRBool aForPrinting = PR_FALSE);
@@ -52,15 +53,17 @@ public:
     virtual ~gfxQuartzSurface();
 
     const gfxSize& GetSize() const { return mSize; }
 
     CGContextRef GetCGContext() { return mCGContext; }
 
     virtual PRInt32 GetDefaultContextFlags() const;
 
+    already_AddRefed<gfxImageSurface> GetImageSurface();
+
 protected:
     CGContextRef mCGContext;
     gfxSize      mSize;
     PRPackedBool mForPrinting;
 };
 
 #endif /* GFX_QUARTZSURFACE_H */
Index: gfx/thebes/src/gfxQuartzSurface.cpp
===================================================================
RCS file: /cvsroot/mozilla/gfx/thebes/src/gfxQuartzSurface.cpp,v
retrieving revision 1.12
diff -u -p -8 -r1.12 gfxQuartzSurface.cpp
--- gfx/thebes/src/gfxQuartzSurface.cpp	7 Jan 2008 00:50:18 -0000	1.12
+++ gfx/thebes/src/gfxQuartzSurface.cpp	27 Jan 2008 23:52:36 -0000
@@ -89,8 +89,28 @@ PRInt32 gfxQuartzSurface::GetDefaultCont
 
     return 0;
 }
 
 gfxQuartzSurface::~gfxQuartzSurface()
 {
     CGContextRelease(mCGContext);
 }
+
+already_AddRefed<gfxImageSurface>
+gfxQuartzSurface::GetImageSurface()
+{
+    if (!mSurfaceValid) {
+        NS_WARNING ("GetImageSurface on an invalid (null) surface; who's calling this without checking for surface errors?");
+        return nsnull;
+    }
+
+    NS_ASSERTION(CairoSurface() != nsnull, "CairoSurface() shouldn't be nsnull when mSurfaceValid is TRUE!");
+
+    cairo_surface_t *isurf = cairo_quartz_surface_get_image(CairoSurface());
+    if (!isurf)
+        return nsnull;
+
+    nsRefPtr<gfxASurface> asurf = gfxASurface::Wrap(isurf);
+    gfxImageSurface *imgsurf = (gfxImageSurface*) asurf.get();
+    NS_ADDREF(imgsurf);
+    return imgsurf;
+}
Index: gfx/thebes/src/gfxWindowsSurface.cpp
===================================================================
RCS file: /cvsroot/mozilla/gfx/thebes/src/gfxWindowsSurface.cpp,v
retrieving revision 1.32
diff -u -p -8 -r1.32 gfxWindowsSurface.cpp
--- gfx/thebes/src/gfxWindowsSurface.cpp	7 Jan 2008 00:50:18 -0000	1.32
+++ gfx/thebes/src/gfxWindowsSurface.cpp	27 Jan 2008 23:52:36 -0000
@@ -120,16 +120,23 @@ gfxWindowsSurface::~gfxWindowsSurface()
         else
             ::DeleteDC(mDC);
     }
 }
 
 already_AddRefed<gfxImageSurface>
 gfxWindowsSurface::GetImageSurface()
 {
+    if (!mSurfaceValid) {
+        NS_WARNING ("GetImageSurface on an invalid (null) surface; who's calling this without checking for surface errors?");
+        return nsnull;
+    }
+
+    NS_ASSERTION(CairoSurface() != nsnull, "CairoSurface() shouldn't be nsnull when mSurfaceValid is TRUE!");
+
     if (mForPrinting)
         return nsnull;
 
     cairo_surface_t *isurf = cairo_win32_surface_get_image(CairoSurface());
     if (!isurf)
         return nsnull;
 
     nsRefPtr<gfxASurface> asurf = gfxASurface::Wrap(isurf);