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Diffstat (limited to 'util/fbcompose/OpenGLResources.hh')
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diff --git a/util/fbcompose/OpenGLResources.hh b/util/fbcompose/OpenGLResources.hh new file mode 100644 index 0000000..6c27f99 --- /dev/null +++ b/util/fbcompose/OpenGLResources.hh | |||
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1 | /** OpenGLResources.hh file for the fluxbox compositor. */ | ||
2 | |||
3 | // Copyright (c) 2011 Gediminas Liktaras (gliktaras at gmail dot com) | ||
4 | // | ||
5 | // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
6 | // of this software and associated documentation files (the "Software"), to deal | ||
7 | // in the Software without restriction, including without limitation the rights | ||
8 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
9 | // copies of the Software, and to permit persons to whom the Software is | ||
10 | // furnished to do so, subject to the following conditions: | ||
11 | // | ||
12 | // The above copyright notice and this permission notice shall be included in | ||
13 | // all copies or substantial portions of the Software. | ||
14 | // | ||
15 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
16 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
17 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
18 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
19 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
20 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
21 | // THE SOFTWARE. | ||
22 | |||
23 | |||
24 | #ifndef FBCOMPOSITOR_OPENGLRESOURCES_HH | ||
25 | #define FBCOMPOSITOR_OPENGLRESOURCES_HH | ||
26 | |||
27 | |||
28 | #include "FbTk/RefCount.hh" | ||
29 | |||
30 | #include <GL/glxew.h> | ||
31 | #include <GL/glx.h> | ||
32 | |||
33 | #include <X11/Xlib.h> | ||
34 | |||
35 | |||
36 | namespace FbCompositor { | ||
37 | |||
38 | class OpenGLScreen; | ||
39 | |||
40 | |||
41 | //--- OPENGL BUFFER WRAPPER ------------------------------------------------ | ||
42 | |||
43 | /** | ||
44 | * A wrapper for OpenGL buffers. | ||
45 | */ | ||
46 | class OpenGLBuffer { | ||
47 | public: | ||
48 | //--- CONSTRUCTORS AND DESTRUCTORS ------------------------------------- | ||
49 | |||
50 | /** Constructor. */ | ||
51 | OpenGLBuffer(const OpenGLScreen &screen, GLenum target_buffer); | ||
52 | |||
53 | /** Destructor. */ | ||
54 | ~OpenGLBuffer(); | ||
55 | |||
56 | |||
57 | //--- ACCESSORS -------------------------------------------------------- | ||
58 | |||
59 | /** \returns the handle to the buffer held. */ | ||
60 | GLuint handle() const; | ||
61 | |||
62 | /** \returns the target of the buffer. */ | ||
63 | GLenum target() const; | ||
64 | |||
65 | |||
66 | //--- MUTATORS --------------------------------------------------------- | ||
67 | |||
68 | /** Bind the buffer to its target. */ | ||
69 | void bind(); | ||
70 | |||
71 | /** Loads the given data into the buffer. */ | ||
72 | void bufferData(int element_size, const GLvoid *data, GLenum usage_hint); | ||
73 | |||
74 | /** Sets the buffer's contents to be the rectangle's coordinates on the screen. */ | ||
75 | void bufferPosRectangle(int screen_width, int screen_height, XRectangle rect); | ||
76 | |||
77 | |||
78 | private: | ||
79 | //--- CONSTRUCTORS ----------------------------------------------------- | ||
80 | |||
81 | /** Copy constructor. */ | ||
82 | OpenGLBuffer(const OpenGLBuffer &other); | ||
83 | |||
84 | /** Assignment operator. */ | ||
85 | OpenGLBuffer &operator=(const OpenGLBuffer &other); | ||
86 | |||
87 | |||
88 | //--- INTERNALS -------------------------------------------------------- | ||
89 | |||
90 | /** The buffer in question. */ | ||
91 | GLuint m_buffer; | ||
92 | |||
93 | /** The target buffer. */ | ||
94 | GLenum m_target; | ||
95 | |||
96 | |||
97 | /** Screen that manages this buffer. */ | ||
98 | const OpenGLScreen &m_screen; | ||
99 | }; | ||
100 | |||
101 | |||
102 | // Bind the buffer to its target. | ||
103 | inline void OpenGLBuffer::bind() { | ||
104 | glBindBuffer(m_target, m_buffer); | ||
105 | } | ||
106 | |||
107 | // Loads the given data into the buffer. | ||
108 | inline void OpenGLBuffer::bufferData(int element_size, const GLvoid *data, GLenum usage_hint) { | ||
109 | bind(); | ||
110 | glBufferData(m_target, element_size, data, usage_hint); | ||
111 | } | ||
112 | |||
113 | // Returns the handle to the buffer held. | ||
114 | inline GLuint OpenGLBuffer::handle() const { | ||
115 | return m_buffer; | ||
116 | } | ||
117 | |||
118 | // Returns the target of the buffer. | ||
119 | inline GLenum OpenGLBuffer::target() const { | ||
120 | return m_target; | ||
121 | } | ||
122 | |||
123 | |||
124 | /** OpenGL buffer wrapper smart pointer. */ | ||
125 | typedef FbTk::RefCount<OpenGLBuffer> OpenGLBufferPtr; | ||
126 | |||
127 | |||
128 | //--- OPENGL TEXTURE WRAPPER ----------------------------------------------- | ||
129 | |||
130 | /** | ||
131 | * OpenGL texture wrapper. | ||
132 | */ | ||
133 | class OpenGL2DTexture { | ||
134 | public: | ||
135 | //--- CONSTRUCTORS AND DESTRUCTORS ------------------------------------- | ||
136 | |||
137 | /** Constructor. */ | ||
138 | OpenGL2DTexture(const OpenGLScreen &screen, bool swizzle_alpha_to_one); | ||
139 | |||
140 | /** Destructor. */ | ||
141 | ~OpenGL2DTexture(); | ||
142 | |||
143 | |||
144 | //--- ACCESSORS -------------------------------------------------------- | ||
145 | |||
146 | /** \returns the handle to the texture held. */ | ||
147 | GLuint handle() const; | ||
148 | |||
149 | |||
150 | /** \returns the height of the texture. */ | ||
151 | int height() const; | ||
152 | |||
153 | /** \returns the width of the texture. */ | ||
154 | int width() const; | ||
155 | |||
156 | |||
157 | //--- MUTATORS --------------------------------------------------------- | ||
158 | |||
159 | /** Bind the texture to GL_TEXTURE_2D. */ | ||
160 | void bind(); | ||
161 | |||
162 | /** Sets the texture's contents to the given pixmap. */ | ||
163 | void setPixmap(Pixmap pixmap, bool manage_pixmap, int width, int height, bool force_direct = false); | ||
164 | |||
165 | |||
166 | private: | ||
167 | //--- CONSTRUCTORS ----------------------------------------------------- | ||
168 | |||
169 | /** Constructor. */ | ||
170 | OpenGL2DTexture(const OpenGL2DTexture &other); | ||
171 | |||
172 | /** Assignment operator. */ | ||
173 | OpenGL2DTexture &operator=(const OpenGL2DTexture &other); | ||
174 | |||
175 | |||
176 | //--- INTERNALS -------------------------------------------------------- | ||
177 | |||
178 | /** Whether this object manages the pixmap. */ | ||
179 | bool m_pixmap_managed; | ||
180 | |||
181 | /** Pixmap of the texture's contents. */ | ||
182 | Pixmap m_pixmap; | ||
183 | |||
184 | /** GLX pixmap of the texture's contents. */ | ||
185 | GLXPixmap m_glx_pixmap; | ||
186 | |||
187 | /** The texture in question. */ | ||
188 | GLuint m_texture; | ||
189 | |||
190 | |||
191 | /** Height of the texture. */ | ||
192 | int m_height; | ||
193 | |||
194 | /** Width of the texture. */ | ||
195 | int m_width; | ||
196 | |||
197 | |||
198 | /** Current connection to the X server. */ | ||
199 | Display *m_display; | ||
200 | |||
201 | /** Screen that manages this texture. */ | ||
202 | const OpenGLScreen &m_screen; | ||
203 | }; | ||
204 | |||
205 | |||
206 | // Bind the texture to its target. | ||
207 | inline void OpenGL2DTexture::bind() { | ||
208 | glBindTexture(GL_TEXTURE_2D, m_texture); | ||
209 | } | ||
210 | |||
211 | // Returns the handle to the texture held. | ||
212 | inline GLuint OpenGL2DTexture::handle() const { | ||
213 | return m_texture; | ||
214 | } | ||
215 | |||
216 | // Returns the height of the texture. | ||
217 | inline int OpenGL2DTexture::height() const { | ||
218 | return m_height; | ||
219 | } | ||
220 | |||
221 | // Returns the width of the texture. | ||
222 | inline int OpenGL2DTexture::width() const { | ||
223 | return m_width; | ||
224 | } | ||
225 | |||
226 | |||
227 | /** OpenGL texture wrapper smart pointer. */ | ||
228 | typedef FbTk::RefCount<OpenGL2DTexture> OpenGL2DTexturePtr; | ||
229 | } | ||
230 | |||
231 | #endif // FBCOMPOSITOR_OPENGLRESOURCES_HH | ||