1 /* === S Y N F I G ========================================================= */
2 /*! \file synfig/rendering/opengl/internal/framebuffers.cpp
3 ** \brief Framebuffers
4 **
5 ** $Id$
6 **
7 ** \legal
8 ** ......... ... 2015 Ivan Mahonin
9 **
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
14 **
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
19 ** \endlegal
20 */
21 /* ========================================================================= */
22
23 /* === H E A D E R S ======================================================= */
24
25 #ifdef USING_PCH
26 # include "pch.h"
27 #else
28 #ifdef HAVE_CONFIG_H
29 # include <config.h>
30 #endif
31
32 #ifndef _WIN32
33 #include <unistd.h>
34 #include <sys/types.h>
35 #include <signal.h>
36 #endif
37
38 #include <synfig/general.h>
39 #include <synfig/localization.h>
40
41 #include "framebuffers.h"
42
43 #endif
44
45 using namespace synfig;
46 using namespace rendering;
47
48 /* === M A C R O S ========================================================= */
49
50 /* === G L O B A L S ======================================================= */
51
52 /* === P R O C E D U R E S ================================================= */
53
54 /* === M E T H O D S ======================================================= */
55
Framebuffers(Context & context)56 gl::Framebuffers::Framebuffers(Context &context):
57 context(context)
58 { }
59
~Framebuffers()60 gl::Framebuffers::~Framebuffers()
61 {
62 Context::Lock lock(context);
63
64 // delete framebuffers
65 for(std::list<Framebuffer>::iterator i = framebuffers.begin(); i != framebuffers.end(); ++i)
66 {
67 assert(!i->locks);
68 glDeleteFramebuffers(1, &i->id);
69 }
70
71 // delete renderbuffers
72 for(std::list<Renderbuffer>::iterator i = renderbuffers.begin(); i != renderbuffers.end(); ++i)
73 {
74 assert(!i->locks);
75 glDeleteRenderbuffers(1, &i->id);
76 }
77 }
78
79 gl::Framebuffers::RenderbufferLock
get_renderbuffer(GLenum internalformat,int width,int height)80 gl::Framebuffers::get_renderbuffer(GLenum internalformat, int width, int height)
81 {
82 for(std::list<Renderbuffer>::iterator i = renderbuffers.begin(); i != renderbuffers.end(); ++i)
83 if ( !i->locks
84 && i->internalformat == internalformat
85 && i->width >= width
86 && i->height >= height )
87 return RenderbufferLock(&*i);
88
89 Context::Lock lock(context);
90 renderbuffers.push_back(Renderbuffer());
91 Renderbuffer *i = &renderbuffers.back();
92 i->internalformat = internalformat;
93 i->width = width;
94 i->height = height;
95 glGenRenderbuffers(1, &i->id);
96 glBindRenderbuffer(GL_RENDERBUFFER, i->id);
97 glRenderbufferStorage(GL_RENDERBUFFER, i->internalformat, i->width, i->height);
98 glBindRenderbuffer(GL_RENDERBUFFER, 0);
99 return RenderbufferLock(i);
100 }
101
102 gl::Framebuffers::FramebufferLock
get_framebuffer()103 gl::Framebuffers::get_framebuffer()
104 {
105 for(std::list<Framebuffer>::iterator i = framebuffers.begin(); i != framebuffers.end(); ++i)
106 if (!i->locks)
107 return FramebufferLock(&*i);
108
109 Context::Lock lock(context);
110 framebuffers.push_back(Framebuffer());
111 Framebuffer *i = &framebuffers.back();
112 glGenFramebuffers(1, &i->id);
113 return FramebufferLock(i);
114 }
115
116 void
check(const char * s)117 gl::Framebuffers::check(const char *s) {
118 context.check(s);
119
120 GLuint id = 0;
121 glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, (GLint*)&id);
122 if (id)
123 {
124 GLenum status = glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
125 if (status != GL_FRAMEBUFFER_COMPLETE)
126 warning("%s GL wrong draw framebuffer status: 0x%x %s id %d", s, status, context.get_enum_string(status), id);
127 }
128
129 id = 0;
130 glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, (GLint*)&id);
131 if (id)
132 {
133 GLenum status = glCheckFramebufferStatus(GL_READ_FRAMEBUFFER);
134 if (status != GL_FRAMEBUFFER_COMPLETE)
135 warning("%s GL wrong read framebuffer status: 0x%x %s id %d", s, status, context.get_enum_string(status), id);
136 }
137 }
138
139 /* === E N T R Y P O I N T ================================================= */
140