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: 2012-06-02 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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