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annotate OrthancStone/Sources/OpenGL/OpenGLFramebuffer.cpp @ 2060:86e0e92a2e0d deep-learning

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added OpenGLTextureArray and OpenGLFramebuffer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 03 May 2023 16:15:50 +0200
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children 4e31d76c7ecd
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2060
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #include "OpenGLFramebuffer.h"
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25
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26 #if defined(__EMSCRIPTEN__)
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27 # if !defined(ORTHANC_WEBGL2_HEAP_COMPAT)
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28 # error The macro ORTHANC_WEBGL2_HEAP_COMPAT must be defined
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29 # endif
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30 #endif
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31
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32 #include "OpenGLTexture.h"
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33 #include "OpenGLTextureArray.h"
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34
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35 #include <OrthancException.h>
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36
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37
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38 namespace OrthancStone
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39 {
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40 namespace OpenGL
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41 {
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42 void OpenGLFramebuffer::SetupTextureTarget()
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43 {
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44 GLenum drawBuffers[1] = { GL_COLOR_ATTACHMENT0 };
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45 glDrawBuffers(1, drawBuffers);
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46
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47 if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
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48 {
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49 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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50 "Incomplete setup of an OpenGL framebuffer");
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51 }
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52 }
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53
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54
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55 void OpenGLFramebuffer::ReadContent(Orthanc::ImageAccessor& target)
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56 {
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57 if (target.GetPitch() != target.GetWidth() * Orthanc::GetBytesPerPixel(target.GetFormat()) ||
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58 target.GetBuffer() == NULL)
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59 {
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60 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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61 "Image must have minimal pitch");
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62 }
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63
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64 if (glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE)
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65 {
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66 ORTHANC_OPENGL_CHECK("glCheckFramebufferStatus()");
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67
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68 glViewport(0, 0, target.GetWidth(), target.GetHeight());
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69
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70 GLenum sourceFormat, internalFormat, pixelType;
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71 OpenGLTexture::ConvertToOpenGLFormats(sourceFormat, internalFormat, pixelType, target.GetFormat());
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72
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73 #if defined(__EMSCRIPTEN__) && (ORTHANC_WEBGL2_HEAP_COMPAT == 1)
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74 // Check out "OpenGLTexture.cpp" for an explanation
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75
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76 int framebufferFormat, framebufferType;
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77 glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &framebufferFormat);
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78 glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &framebufferType);
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79
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80 switch (target.GetFormat())
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81 {
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82 case Orthanc::PixelFormat_RGBA32:
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83 if (sourceFormat != GL_RGBA ||
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84 internalFormat != GL_RGBA ||
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85 pixelType != GL_UNSIGNED_BYTE ||
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86 framebufferFormat != GL_RGBA ||
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87 framebufferType != GL_UNSIGNED_BYTE)
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88 {
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89 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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90 }
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91
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92 EM_ASM({
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93 var ptr = emscriptenWebGLGetTexPixelData(GLctx.UNSIGNED_BYTE, GLctx.RGBA, $1, $2, $0, GLctx.RGBA);
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94 GLctx.readPixels(0, 0, $1, $2, GLctx.RGBA, GLctx.UNSIGNED_BYTE, ptr);
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95 },
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96 target.GetBuffer(), // $0
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97 target.GetWidth(), // $1
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98 target.GetHeight()); // $2
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99 break;
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100
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101 case Orthanc::PixelFormat_Float32:
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102 // In Mozilla Firefox, "Float32" is not available as such. We
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103 // have to download an RGBA image in Float32.
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104 if (sourceFormat != GL_RED ||
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105 internalFormat != GL_R32F ||
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106 pixelType != GL_FLOAT ||
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107 framebufferType != GL_FLOAT)
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108 {
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109 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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110 }
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111
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112 switch (framebufferFormat)
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113 {
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114 case GL_RGBA:
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115 // This is Mozilla Firefox
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116 EM_ASM({
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117 var tmp = new Float32Array($1 * $2 * 4);
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118 GLctx.readPixels(0, 0, $1, $2, GLctx.RGBA, GLctx.FLOAT, tmp);
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119
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120 // From RGBA to RED
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121 var ptr = emscriptenWebGLGetTexPixelData(GLctx.FLOAT, GLctx.RED, $1, $2, $0, GLctx.R32F);
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122 for (var i = 0; i < $1 * $2; i++) {
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123 ptr[i] = tmp[4 * i];
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
124 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
125 },
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
126 target.GetBuffer(), // $0
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
127 target.GetWidth(), // $1
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
128 target.GetHeight()); // $2
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
129 break;
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
130
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
131 case GL_RED:
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
132 // This is Chromium
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
133 EM_ASM({
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
134 var ptr = emscriptenWebGLGetTexPixelData(GLctx.FLOAT, GLctx.RED, $1, $2, $0, GLctx.R32F);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
135 GLctx.readPixels(0, 0, $1, $2, GLctx.RED, GLctx.FLOAT, ptr);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
136 },
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
137 target.GetBuffer(), // $0
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
138 target.GetWidth(), // $1
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
139 target.GetHeight()); // $2
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
140 break;
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
141
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
142 default:
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
143 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
144 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
145 break;
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
146
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
147 default:
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
148 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
149 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
150 #else
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
151 glReadPixels(0, 0, target.GetWidth(), target.GetHeight(), sourceFormat, pixelType, target.GetBuffer());
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
152 #endif
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
153
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
154 ORTHANC_OPENGL_CHECK("glReadPixels()");
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
155 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
156 else
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
157 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
158 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
159 "Incomplete setup of an OpenGL framebuffer");
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
160 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
161 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
162
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
163
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
164 OpenGLFramebuffer::OpenGLFramebuffer(IOpenGLContext& context) :
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
165 context_(context),
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
166 framebuffer_(0)
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
167 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
168 if (context.IsContextLost())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
169 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
170 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
171 "OpenGL context has been lost");
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
172 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
173
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
174 glGenFramebuffers(1, &framebuffer_);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
175 if (framebuffer_ == 0)
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
176 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
177 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
178 "Cannot create an OpenGL framebuffer");
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
179 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
180
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
181 glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
182 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
183
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
184
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
185 OpenGLFramebuffer::~OpenGLFramebuffer()
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
186 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
187 glDeleteFramebuffers(1, &framebuffer_);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
188 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
189
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
190
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
191 void OpenGLFramebuffer::SetTarget(OpenGLTexture& target)
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
192 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
193 glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, target.GetId(), 0);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
194 SetupTextureTarget();
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
195 glViewport(0, 0, target.GetWidth(), target.GetHeight());
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
196 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
197
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
198
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
199 void OpenGLFramebuffer::SetTarget(OpenGLTextureArray& target,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
200 unsigned int layer)
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
201 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
202 if (layer >= target.GetDepth())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
203 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
204 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
205 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
206 else
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
207 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
208 glFramebufferTextureLayer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target.GetId(), 0, layer);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
209 SetupTextureTarget();
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
210 glViewport(0, 0, target.GetWidth(), target.GetHeight());
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
211 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
212 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
213
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
214
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
215 void OpenGLFramebuffer::ReadTexture(Orthanc::ImageAccessor& target,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
216 const OpenGLTexture& source)
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
217 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
218 if (target.GetWidth() != source.GetWidth() ||
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
219 target.GetHeight() != source.GetHeight())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
220 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
221 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
222 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
223 else if (target.GetFormat() != source.GetFormat())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
224 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
225 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
226 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
227 else
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
228 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
229 glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, source.GetId(), 0);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
230 ORTHANC_OPENGL_CHECK("glFramebufferTexture2D()");
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
231 ReadContent(target);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
232 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
233 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
234
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
236 void OpenGLFramebuffer::ReadTexture(Orthanc::ImageAccessor& target,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
237 const OpenGLTextureArray& source,
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
238 unsigned int layer)
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
240 if (target.GetWidth() != source.GetWidth() ||
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
241 target.GetHeight() != source.GetHeight())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
242 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
243 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
244 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
245 else if (target.GetFormat() != source.GetFormat())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
246 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
247 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
248 }
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
249 else if (layer >= source.GetDepth())
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
250 {
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
251 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
86e0e92a2e0d added OpenGLTextureArray and OpenGLFramebuffer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
252 }
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253 else
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254 {
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255 glFramebufferTextureLayer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, source.GetId(), 0, layer);
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256 ORTHANC_OPENGL_CHECK("glFramebufferTextureLayer()");
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257 ReadContent(target);
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258 }
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259 }
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260 }
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261 }