src/bitmapsource.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * bitmapsource.cpp
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2007-2008 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  *
  12  */
  13
  14 #include <config.h>
  15
  16 #include <stdio.h>
  17
  18 #include "application.h"
  19 #include "bitmapsource.h"
  20 #include "runtime.h"
  21
  22 BitmapSource::BitmapSource ()
  23 {
  24         SetObjectType (Type::BITMAPSOURCE);
  25         image_surface = NULL;
  26         native_surface = NULL;
  27         data = NULL;
  28 }
  29
  30 BitmapSource::~BitmapSource ()
  31 {
  32         if (image_surface)
  33                 cairo_surface_destroy (image_surface);
  34         if (native_surface)
  35                 cairo_surface_destroy (native_surface);
  36
  37         if (this->data)
  38                 g_free (this->data);
  39 }
  40
  41 gpointer
  42 BitmapSource::GetBitmapData ()
  43 {
  44         return data;
  45 }
  46
  47 void
  48 BitmapSource::SetBitmapData (gpointer data)
  49 {
  50         if (this->data)
  51                 g_free (this->data);
  52         this->data = data;
  53 }
  54
  55 void
  56 BitmapSource::Invalidate ()
  57 {
  58         if (GetPixelWidth () == 0 || GetPixelHeight () == 0)
  59                 return;
  60
  61         if (native_surface) {
  62                 cairo_surface_destroy (native_surface);
  63                 native_surface = NULL;
  64         }
  65         if (image_surface)
  66                 cairo_surface_destroy (image_surface);
  67
  68         image_surface = cairo_image_surface_create_for_data ((unsigned char *) GetBitmapData (), GetPixelFormat () == PixelFormatBgr32 ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32, GetPixelWidth (), GetPixelHeight (), GetPixelWidth ()*4);
  69 }
  70
  71 cairo_surface_t *
  72 BitmapSource::GetSurface (cairo_t *cr)
  73 {
  74         if (image_surface == NULL)
  75                 return NULL;
  76
  77         if (native_surface)
  78                 return native_surface;
  79
  80         if (cr == NULL)
  81                 return image_surface;
  82
  83         native_surface = cairo_surface_create_similar (cairo_get_group_target (cr),
  84                                                        cairo_surface_get_content (image_surface),
  85                                                        GetPixelWidth (), GetPixelHeight ());
  86
  87         cairo_t *context = cairo_create (native_surface);
  88
  89         cairo_set_source_surface (context, image_surface, 0, 0);
  90         cairo_pattern_set_filter (cairo_get_source (context), CAIRO_FILTER_FAST);
  91
  92         cairo_paint (context);
  93         cairo_destroy (context);
  94
  95         return native_surface;
  96 }