LCOV - app.info - gfx/2d/SourceSurfaceCairo.cpp

LCOV - code coverage report
| Current view: | directory - gfx/2d - SourceSurfaceCairo.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 68 | 0 | 0.0 %
| Date: | 2012-07-07 | Functions: | 18 | 0 | 0.0 %

           1                 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
           2                 :  * ***** BEGIN LICENSE BLOCK *****
           3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
           4                 :  *
           5                 :  * The contents of this file are subject to the Mozilla Public License Version
           6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
           7                 :  * the License. You may obtain a copy of the License at
           8                 :  * http://www.mozilla.org/MPL/
           9                 :  *
          10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
          11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
          12                 :  * for the specific language governing rights and limitations under the
          13                 :  * License.
          14                 :  *
          15                 :  * The Original Code is Mozilla Corporation code.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is Mozilla Foundation.
          18                 :  * Portions created by the Initial Developer are Copyright (C) 2009
          19                 :  * the Initial Developer. All Rights Reserved.
          20                 :  *
          21                 :  * Contributor(s):
          22                 :  *   Bas Schouten <bschouten@mozilla.com>
          23                 :  *
          24                 :  * Alternatively, the contents of this file may be used under the terms of
          25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          28                 :  * of those above. If you wish to allow use of your version of this file only
          29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          30                 :  * use your version of this file under the terms of the MPL, indicate your
          31                 :  * decision by deleting the provisions above and replace them with the notice
          32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          33                 :  * the provisions above, a recipient may use your version of this file under
          34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          35                 :  *
          36                 :  * ***** END LICENSE BLOCK ***** */
          37                 :
          38                 : #include "SourceSurfaceCairo.h"
          39                 : #include "DrawTargetCairo.h"
          40                 : #include "HelpersCairo.h"
          41                 :
          42                 : #include "cairo.h"
          43                 :
          44                 : namespace mozilla {
          45                 : namespace gfx {
          46                 :
          47                 : static SurfaceFormat
          48               0 : CairoFormatToSurfaceFormat(cairo_format_t format)
          49                 : {
          50               0 :   switch (format)
          51                 :   {
          52                 :     case CAIRO_FORMAT_ARGB32:
          53               0 :       return FORMAT_B8G8R8A8;
          54                 :     case CAIRO_FORMAT_RGB24:
          55               0 :       return FORMAT_B8G8R8X8;
          56                 :     case CAIRO_FORMAT_A8:
          57               0 :       return FORMAT_A8;
          58                 :     default:
          59               0 :       return FORMAT_B8G8R8A8;
          60                 :   }
          61                 : }
          62                 :
          63               0 : SourceSurfaceCairo::SourceSurfaceCairo(cairo_surface_t* aSurface,
          64                 :                                        const IntSize& aSize,
          65                 :                                        const SurfaceFormat& aFormat,
          66                 :                                        DrawTargetCairo* aDrawTarget /* = NULL */)
          67                 :  : mSize(aSize)
          68                 :  , mFormat(aFormat)
          69                 :  , mSurface(aSurface)
          70               0 :  , mDrawTarget(aDrawTarget)
          71                 : {
          72               0 :   cairo_surface_reference(mSurface);
          73               0 : }
          74                 :
          75               0 : SourceSurfaceCairo::~SourceSurfaceCairo()
          76                 : {
          77               0 :   MarkIndependent();
          78               0 :   cairo_surface_destroy(mSurface);
          79               0 : }
          80                 :
          81                 : IntSize
          82               0 : SourceSurfaceCairo::GetSize() const
          83                 : {
          84               0 :   return mSize;
          85                 : }
          86                 :
          87                 : SurfaceFormat
          88               0 : SourceSurfaceCairo::GetFormat() const
          89                 : {
          90               0 :   return mFormat;
          91                 : }
          92                 :
          93                 : TemporaryRef<DataSourceSurface>
          94               0 : SourceSurfaceCairo::GetDataSurface()
          95                 : {
          96               0 :   RefPtr<DataSourceSurfaceCairo> dataSurf;
          97                 :
          98               0 :   if (cairo_surface_get_type(mSurface) == CAIRO_SURFACE_TYPE_IMAGE) {
          99               0 :     dataSurf = new DataSourceSurfaceCairo(mSurface);
         100                 :   } else {
         101                 :     cairo_surface_t* imageSurf = cairo_image_surface_create(GfxFormatToCairoFormat(mFormat),
         102               0 :                                                             mSize.width, mSize.height);
         103                 :
         104                 :     // Fill the new image surface with the contents of our surface.
         105               0 :     cairo_t* ctx = cairo_create(imageSurf);
         106               0 :     cairo_set_source_surface(ctx, mSurface, 0, 0);
         107               0 :     cairo_paint(ctx);
         108               0 :     cairo_destroy(ctx);
         109                 :
         110               0 :     dataSurf = new DataSourceSurfaceCairo(imageSurf);
         111               0 :     cairo_surface_destroy(imageSurf);
         112                 :   }
         113                 :
         114               0 :   return dataSurf;
         115                 : }
         116                 :
         117                 : cairo_surface_t*
         118               0 : SourceSurfaceCairo::GetSurface() const
         119                 : {
         120               0 :   return mSurface;
         121                 : }
         122                 :
         123                 : void
         124               0 : SourceSurfaceCairo::DrawTargetWillChange()
         125                 : {
         126               0 :   if (mDrawTarget) {
         127               0 :     mDrawTarget = NULL;
         128                 :
         129                 :     // We're about to lose our version of the surface, so make a copy of it.
         130                 :     cairo_surface_t* surface = cairo_surface_create_similar(mSurface,
         131                 :                                                             GfxFormatToCairoContent(mFormat),
         132               0 :                                                             mSize.width, mSize.height);
         133               0 :     cairo_t* ctx = cairo_create(surface);
         134               0 :     cairo_pattern_t* pat = cairo_pattern_create_for_surface(mSurface);
         135               0 :     cairo_set_source(ctx, pat);
         136               0 :     cairo_paint(ctx);
         137               0 :     cairo_destroy(ctx);
         138                 :
         139                 :     // Swap in this new surface.
         140               0 :     cairo_surface_destroy(mSurface);
         141               0 :     mSurface = surface;
         142                 :   }
         143               0 : }
         144                 :
         145                 : void
         146               0 : SourceSurfaceCairo::MarkIndependent()
         147                 : {
         148               0 :   if (mDrawTarget) {
         149               0 :     mDrawTarget->RemoveSnapshot(this);
         150               0 :     mDrawTarget = NULL;
         151                 :   }
         152               0 : }
         153                 :
         154               0 : DataSourceSurfaceCairo::DataSourceSurfaceCairo(cairo_surface_t* imageSurf)
         155               0 :  : mImageSurface(imageSurf)
         156                 : {
         157               0 :   cairo_surface_reference(mImageSurface);
         158               0 : }
         159                 :
         160               0 : DataSourceSurfaceCairo::~DataSourceSurfaceCairo()
         161                 : {
         162               0 :   cairo_surface_destroy(mImageSurface);
         163               0 : }
         164                 :
         165                 : unsigned char *
         166               0 : DataSourceSurfaceCairo::GetData()
         167                 : {
         168               0 :   return cairo_image_surface_get_data(mImageSurface);
         169                 : }
         170                 :
         171                 : int32_t
         172               0 : DataSourceSurfaceCairo::Stride()
         173                 : {
         174               0 :   return cairo_image_surface_get_stride(mImageSurface);
         175                 : }
         176                 :
         177                 : IntSize
         178               0 : DataSourceSurfaceCairo::GetSize() const
         179                 : {
         180               0 :   IntSize size;
         181               0 :   size.width = cairo_image_surface_get_width(mImageSurface);
         182               0 :   size.height = cairo_image_surface_get_height(mImageSurface);
         183                 :
         184                 :   return size;
         185                 : }
         186                 :
         187                 : SurfaceFormat
         188               0 : DataSourceSurfaceCairo::GetFormat() const
         189                 : {
         190               0 :   return CairoFormatToSurfaceFormat(cairo_image_surface_get_format(mImageSurface));
         191                 : }
         192                 :
         193                 : cairo_surface_t*
         194               0 : DataSourceSurfaceCairo::GetSurface() const
         195                 : {
         196               0 :   return mImageSurface;
         197                 : }
         198                 :
         199                 : }
         200                 : }

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