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author | Jacek Antonelli | 2008-08-15 23:45:34 -0500 |
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committer | Jacek Antonelli | 2008-08-15 23:45:34 -0500 |
commit | cd17687f01420952712a500107e0f93e7ab8d5f8 (patch) | |
tree | ce48c2b706f2c1176290e39fb555fbdf6648ce01 /linden/indra/llrender/llrendertarget.cpp | |
parent | Second Life viewer sources 1.19.0.5 (diff) | |
download | meta-impy-cd17687f01420952712a500107e0f93e7ab8d5f8.zip meta-impy-cd17687f01420952712a500107e0f93e7ab8d5f8.tar.gz meta-impy-cd17687f01420952712a500107e0f93e7ab8d5f8.tar.bz2 meta-impy-cd17687f01420952712a500107e0f93e7ab8d5f8.tar.xz |
Second Life viewer sources 1.19.1.0
Diffstat (limited to 'linden/indra/llrender/llrendertarget.cpp')
-rw-r--r-- | linden/indra/llrender/llrendertarget.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/linden/indra/llrender/llrendertarget.cpp b/linden/indra/llrender/llrendertarget.cpp new file mode 100644 index 0000000..974e0a2 --- /dev/null +++ b/linden/indra/llrender/llrendertarget.cpp | |||
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1 | /** | ||
2 | * @file llrendertarget.cpp | ||
3 | * @brief LLRenderTarget implementation | ||
4 | * | ||
5 | * $LicenseInfo:firstyear=2001&license=viewergpl$ | ||
6 | * | ||
7 | * Copyright (c) 2001-2008, Linden Research, Inc. | ||
8 | * | ||
9 | * Second Life Viewer Source Code | ||
10 | * The source code in this file ("Source Code") is provided by Linden Lab | ||
11 | * to you under the terms of the GNU General Public License, version 2.0 | ||
12 | * ("GPL"), unless you have obtained a separate licensing agreement | ||
13 | * ("Other License"), formally executed by you and Linden Lab. Terms of | ||
14 | * the GPL can be found in doc/GPL-license.txt in this distribution, or | ||
15 | * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 | ||
16 | * | ||
17 | * There are special exceptions to the terms and conditions of the GPL as | ||
18 | * it is applied to this Source Code. View the full text of the exception | ||
19 | * in the file doc/FLOSS-exception.txt in this software distribution, or | ||
20 | * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception | ||
21 | * | ||
22 | * By copying, modifying or distributing this software, you acknowledge | ||
23 | * that you have read and understood your obligations described above, | ||
24 | * and agree to abide by those obligations. | ||
25 | * | ||
26 | * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO | ||
27 | * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, | ||
28 | * COMPLETENESS OR PERFORMANCE. | ||
29 | * $/LicenseInfo$ | ||
30 | */ | ||
31 | |||
32 | #include "linden_common.h" | ||
33 | |||
34 | #include "llrendertarget.h" | ||
35 | #include "llglimmediate.h" | ||
36 | |||
37 | |||
38 | BOOL LLRenderTarget::sUseFBO = FALSE; | ||
39 | |||
40 | LLRenderTarget::LLRenderTarget() | ||
41 | { | ||
42 | mResX = mResY = mTex = mFBO = mDepth = 0; | ||
43 | mUseDepth = FALSE; | ||
44 | mUsage = GL_TEXTURE_2D; | ||
45 | } | ||
46 | |||
47 | LLRenderTarget::~LLRenderTarget() | ||
48 | { | ||
49 | release(); | ||
50 | } | ||
51 | |||
52 | void LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, U32 usage, BOOL force_fbo) | ||
53 | { | ||
54 | mResX = resx; | ||
55 | mResY = resy; | ||
56 | |||
57 | mUsage = usage; | ||
58 | mUseDepth = depth; | ||
59 | release(); | ||
60 | |||
61 | glGenTextures(1, (GLuint *) &mTex); | ||
62 | glBindTexture(mUsage, mTex); | ||
63 | glTexImage2D(mUsage, 0, color_fmt, mResX, mResY, 0, color_fmt, GL_UNSIGNED_BYTE, NULL); | ||
64 | |||
65 | glTexParameteri(mUsage, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | ||
66 | glTexParameteri(mUsage, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | ||
67 | |||
68 | if (mUsage != GL_TEXTURE_RECTANGLE_ARB) | ||
69 | { | ||
70 | glTexParameteri(mUsage, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT); | ||
71 | glTexParameteri(mUsage, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT); | ||
72 | } | ||
73 | else | ||
74 | { | ||
75 | // ATI doesn't support mirrored repeat for rectangular textures. | ||
76 | glTexParameteri(mUsage, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
77 | glTexParameteri(mUsage, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
78 | } | ||
79 | |||
80 | stop_glerror(); | ||
81 | |||
82 | if (sUseFBO || force_fbo) | ||
83 | { | ||
84 | if (depth) | ||
85 | { | ||
86 | glGenRenderbuffersEXT(1, (GLuint *) &mDepth); | ||
87 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, mDepth); | ||
88 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,GL_DEPTH_COMPONENT,mResX,mResY); | ||
89 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0); | ||
90 | } | ||
91 | |||
92 | glGenFramebuffersEXT(1, (GLuint *) &mFBO); | ||
93 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); | ||
94 | |||
95 | if (mDepth) | ||
96 | { | ||
97 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, | ||
98 | GL_RENDERBUFFER_EXT, mDepth); | ||
99 | } | ||
100 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, | ||
101 | mUsage, mTex, 0); | ||
102 | |||
103 | |||
104 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); | ||
105 | } | ||
106 | } | ||
107 | |||
108 | void LLRenderTarget::release() | ||
109 | { | ||
110 | if (mFBO) | ||
111 | { | ||
112 | glDeleteFramebuffersEXT(1, (GLuint *) &mFBO); | ||
113 | mFBO = 0; | ||
114 | } | ||
115 | |||
116 | if (mTex) | ||
117 | { | ||
118 | glDeleteTextures(1, (GLuint *) &mTex); | ||
119 | mTex = 0; | ||
120 | } | ||
121 | |||
122 | if (mDepth) | ||
123 | { | ||
124 | glDeleteRenderbuffersEXT(1, (GLuint *) &mDepth); | ||
125 | mDepth = 0; | ||
126 | } | ||
127 | } | ||
128 | |||
129 | void LLRenderTarget::bindTarget() | ||
130 | { | ||
131 | if (mFBO) | ||
132 | { | ||
133 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFBO); | ||
134 | } | ||
135 | |||
136 | glViewport(0, 0, mResX, mResY); | ||
137 | } | ||
138 | |||
139 | void LLRenderTarget::clear() | ||
140 | { | ||
141 | U32 mask = GL_COLOR_BUFFER_BIT; | ||
142 | if (mUseDepth) | ||
143 | { | ||
144 | mask |= GL_DEPTH_BUFFER_BIT; | ||
145 | } | ||
146 | if (mFBO) | ||
147 | { | ||
148 | glClear(mask); | ||
149 | } | ||
150 | else | ||
151 | { | ||
152 | LLGLEnable scissor(GL_SCISSOR_TEST); | ||
153 | glScissor(0, 0, mResX, mResY); | ||
154 | glClear(mask); | ||
155 | } | ||
156 | } | ||
157 | |||
158 | void LLRenderTarget::bindTexture() | ||
159 | { | ||
160 | glBindTexture(mUsage, mTex); | ||
161 | } | ||
162 | |||
163 | void LLRenderTarget::flush() | ||
164 | { | ||
165 | gGL.flush(); | ||
166 | if (!mFBO) | ||
167 | { | ||
168 | bindTexture(); | ||
169 | glCopyTexSubImage2D(mUsage, 0, 0, 0, 0, 0, mResX, mResY); | ||
170 | } | ||
171 | } | ||
172 | |||
173 | BOOL LLRenderTarget::isComplete() const | ||
174 | { | ||
175 | return (mTex || mDepth) ? TRUE : FALSE; | ||
176 | } | ||
177 | |||
178 | void LLRenderTarget::getViewport(S32* viewport) | ||
179 | { | ||
180 | viewport[0] = 0; | ||
181 | viewport[1] = 0; | ||
182 | viewport[2] = mResX; | ||
183 | viewport[3] = mResY; | ||
184 | } | ||
185 | |||