== compositor ==
[blender.git] / source / blender / compositor / operations / COM_ViewerBaseOperation.cpp
1 /*
2  * Copyright 2011, Blender Foundation.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * Contributor: 
19  *              Jeroen Bakker 
20  *              Monique Dewanchand
21  */
22
23 #include "COM_ViewerBaseOperation.h"
24 #include "COM_SocketConnection.h"
25 #include "BLI_listbase.h"
26 #include "DNA_scene_types.h"
27 #include "BKE_image.h"
28 #include "WM_api.h"
29 #include "WM_types.h"
30 #include "PIL_time.h"
31 #include "BLI_utildefines.h"
32 #include "BLI_math_color.h"
33
34 extern "C" {
35         #include "MEM_guardedalloc.h"
36         #include "IMB_imbuf.h"
37         #include "IMB_imbuf_types.h"
38         #include "IMB_colormanagement.h"
39 }
40
41
42 ViewerBaseOperation::ViewerBaseOperation() : NodeOperation()
43 {
44         this->setImage(NULL);
45         this->setImageUser(NULL);
46         this->m_outputBuffer = NULL;
47         this->m_outputBufferDisplay = NULL;
48         this->m_active = false;
49         this->m_doColorManagement = true;
50 }
51
52 void ViewerBaseOperation::initExecution()
53 {
54         if (isActiveViewerOutput()) {
55                 initImage();
56         }
57 }
58
59 void ViewerBaseOperation::initImage()
60 {
61         Image *anImage = this->m_image;
62         ImBuf *ibuf = BKE_image_acquire_ibuf(anImage, this->m_imageUser, &this->m_lock);
63
64         if (!ibuf) return;
65         if (ibuf->x != (int)getWidth() || ibuf->y != (int)getHeight()) {
66                 BLI_lock_thread(LOCK_DRAW_IMAGE);
67
68                 imb_freerectImBuf(ibuf);
69                 imb_freerectfloatImBuf(ibuf);
70                 IMB_freezbuffloatImBuf(ibuf);
71                 ibuf->x = getWidth();
72                 ibuf->y = getHeight();
73                 imb_addrectImBuf(ibuf);
74                 imb_addrectfloatImBuf(ibuf);
75                 anImage->ok = IMA_OK_LOADED;
76
77                 IMB_display_buffer_invalidate(ibuf);
78
79                 BLI_unlock_thread(LOCK_DRAW_IMAGE);
80         }
81
82         /* now we combine the input with ibuf */
83         this->m_outputBuffer = ibuf->rect_float;
84         this->m_outputBufferDisplay = (unsigned char *)ibuf->rect;
85
86         /* needed for display buffer update
87          *
88          * no need to lock / reference the image buffer because it's seems
89          * to be the single place which changes buffers of viewer image
90          * which is this node
91          */
92         this->m_ibuf = ibuf;
93
94         BKE_image_release_ibuf(this->m_image, this->m_lock);
95 }
96 void ViewerBaseOperation:: updateImage(rcti *rect)
97 {
98         IMB_partial_display_buffer_update(this->m_ibuf, this->m_outputBuffer, getWidth(), 0, 0,
99                                           rect->xmin, rect->ymin, rect->xmax, rect->ymax);
100
101         WM_main_add_notifier(NC_WINDOW | ND_DRAW, NULL);
102 }
103
104 void ViewerBaseOperation::deinitExecution()
105 {
106         this->m_outputBuffer = NULL;
107 }
108
109 const CompositorPriority ViewerBaseOperation::getRenderPriority() const
110 {
111         if (this->isActiveViewerOutput()) {
112                 return COM_PRIORITY_HIGH;
113         }
114         else {
115                 return COM_PRIORITY_LOW;
116         }
117 }