Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/OpenGL/OpenGLTexture.cpp @ 2034:4b24b7533346 deep-learning

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 27 Jan 2023 15:43:24 +0100
parents 23b0a42eea85
children a73a8415780f
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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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23
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24 #include "OpenGLTexture.h"
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25 #include "IOpenGLContext.h"
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26
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27 #include <Images/Image.h>
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28 #include <Logging.h>
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29 #include <OrthancException.h>
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30
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31 namespace OrthancStone
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32 {
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33 namespace OpenGL
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34 {
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35 OpenGLTexture::OpenGLTexture(OpenGL::IOpenGLContext& context) :
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36 texture_(0),
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37 width_(0),
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38 height_(0),
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39 context_(context)
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40 {
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41 if (!context_.IsContextLost())
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42 {
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43 // Generate a texture object
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44 glGenTextures(1, &texture_);
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45 if (texture_ == 0)
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46 {
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47 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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48 "Cannot create an OpenGL texture");
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49 }
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50 }
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51 }
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52
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53 OpenGLTexture::~OpenGLTexture()
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54 {
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55 try
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56 {
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57 if (!context_.IsContextLost())
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58 {
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59 assert(texture_ != 0);
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60 ORTHANC_OPENGL_TRACE_CURRENT_CONTEXT("About to call glDeleteTextures");
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61 glDeleteTextures(1, &texture_);
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62 }
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63 }
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64 catch (const Orthanc::OrthancException& e)
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65 {
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66 if (e.HasDetails())
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67 {
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68 LOG(ERROR) << "OrthancException in ~OpenGLTexture: " << e.What() << " Details: " << e.GetDetails();
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69 }
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70 else
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71 {
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72 LOG(ERROR) << "OrthancException in ~OpenGLTexture: " << e.What();
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73 }
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74 }
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75 catch (const std::exception& e)
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76 {
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77 LOG(ERROR) << "std::exception in ~OpenGLTexture: " << e.what();
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78 }
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79 catch (...)
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80 {
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81 LOG(ERROR) << "Unknown exception in ~OpenGLTexture";
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82 }
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83 }
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84
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85 void OpenGLTexture::Setup(Orthanc::PixelFormat format,
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86 unsigned int width,
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87 unsigned int height,
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88 bool isLinearInterpolation,
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89 const void* data)
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90 {
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91 if (context_.IsContextLost())
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92 {
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93 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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94 "OpenGL context has been lost");
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95 }
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96 else
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97 {
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98 glPixelStorei(GL_UNPACK_ALIGNMENT, 1); // Disable byte-alignment restriction
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99
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100 // Bind it
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101 glActiveTexture(GL_TEXTURE0);
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102 glBindTexture(GL_TEXTURE_2D, texture_);
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103
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104 GLenum sourceFormat, internalFormat, pixelType;
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105
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106 switch (format)
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107 {
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108 case Orthanc::PixelFormat_Grayscale8:
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109 sourceFormat = GL_RED;
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110 internalFormat = GL_RED;
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111 pixelType = GL_UNSIGNED_BYTE;
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112 break;
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113
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114 case Orthanc::PixelFormat_RGB24:
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115 sourceFormat = GL_RGB;
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116 internalFormat = GL_RGB;
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117 pixelType = GL_UNSIGNED_BYTE;
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118 break;
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119
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120 case Orthanc::PixelFormat_RGBA32:
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121 sourceFormat = GL_RGBA;
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122 internalFormat = GL_RGBA;
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123 pixelType = GL_UNSIGNED_BYTE;
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124 break;
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125
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126 case Orthanc::PixelFormat_Float32:
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127 sourceFormat = GL_RED;
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128 internalFormat = GL_R32F; // Don't use "GL_RED" here, as it clamps to [0,1]
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129 pixelType = GL_FLOAT;
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130 break;
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131
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132 default:
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133 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented,
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134 "No support for this format in OpenGL textures: " +
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135 std::string(EnumerationToString(format)));
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136 }
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parents: 616
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137
2034
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138 width_ = width;
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139 height_ = height;
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1091b2adeb5a Fixed animation frame stopping when returning false + big work on the OpenGL
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140
1091b2adeb5a Fixed animation frame stopping when returning false + big work on the OpenGL
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141 GLint interpolation = (isLinearInterpolation ? GL_LINEAR : GL_NEAREST);
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142
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143 // Load the texture from the image buffer
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144 glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, width, height,
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145 0, sourceFormat, pixelType, data);
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1091b2adeb5a Fixed animation frame stopping when returning false + big work on the OpenGL
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146 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, interpolation);
1091b2adeb5a Fixed animation frame stopping when returning false + big work on the OpenGL
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147 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, interpolation);
1091b2adeb5a Fixed animation frame stopping when returning false + big work on the OpenGL
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148 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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149 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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parents: 616
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150 }
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151 }
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152
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153 void OpenGLTexture::Load(const Orthanc::ImageAccessor& image,
Sebastien Jodogne <s.jodogne@gmail.com>
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154 bool isLinearInterpolation)
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155 {
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156 if (image.GetPitch() != image.GetBytesPerPixel() * image.GetWidth())
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157 {
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158 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented,
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159 "Pitch is not the same as the row size");
Sebastien Jodogne <s.jodogne@gmail.com>
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160 }
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2033
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161 else
Sebastien Jodogne <s.jodogne@gmail.com>
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162 {
Sebastien Jodogne <s.jodogne@gmail.com>
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163 Setup(image.GetFormat(), image.GetWidth(), image.GetHeight(),
Sebastien Jodogne <s.jodogne@gmail.com>
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164 isLinearInterpolation, image.GetConstBuffer());
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2033
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165 }
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2033
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166 }
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2033
diff changeset
167
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168
fadacfbf5538 OpenGL programs and textures
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169 void OpenGLTexture::Bind(GLint location)
fadacfbf5538 OpenGL programs and textures
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170 {
fadacfbf5538 OpenGL programs and textures
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171 glActiveTexture(GL_TEXTURE0);
fadacfbf5538 OpenGL programs and textures
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172 glBindTexture(GL_TEXTURE_2D, texture_);
fadacfbf5538 OpenGL programs and textures
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173 glUniform1i(location, 0 /* texture unit */);
fadacfbf5538 OpenGL programs and textures
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174 }
2032
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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175
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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176
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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177 Orthanc::ImageAccessor* OpenGLTexture::Download(Orthanc::PixelFormat format)
d10bab7cc396 added OpenGLTexture::Download()
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parents: 1871
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178 {
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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179 if (context_.IsContextLost())
d10bab7cc396 added OpenGLTexture::Download()
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180 {
d10bab7cc396 added OpenGLTexture::Download()
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181 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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182 "OpenGL context is lost");
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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183 }
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
184
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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185 std::unique_ptr<Orthanc::ImageAccessor> target(new Orthanc::Image(format, width_, height_, true));
2033
23b0a42eea85 added support for floating-point images in OpenGLTexture
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2032
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186 assert(target->GetPitch() == width_ * Orthanc::GetBytesPerPixel(format));
2032
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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187
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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188 glBindTexture(GL_TEXTURE_2D, texture_);
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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189
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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190 switch (format)
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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191 {
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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192 case Orthanc::PixelFormat_Grayscale8:
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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193 glGetTexImage(GL_TEXTURE_2D, 0 /* base level */, GL_RED, GL_UNSIGNED_BYTE, target->GetBuffer());
d10bab7cc396 added OpenGLTexture::Download()
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194 break;
d10bab7cc396 added OpenGLTexture::Download()
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195
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
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196 case Orthanc::PixelFormat_RGB24:
d10bab7cc396 added OpenGLTexture::Download()
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197 glGetTexImage(GL_TEXTURE_2D, 0 /* base level */, GL_RGB, GL_UNSIGNED_BYTE, target->GetBuffer());
d10bab7cc396 added OpenGLTexture::Download()
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parents: 1871
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198 break;
d10bab7cc396 added OpenGLTexture::Download()
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199
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
200 case Orthanc::PixelFormat_RGBA32:
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
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201 glGetTexImage(GL_TEXTURE_2D, 0 /* base level */, GL_RGBA, GL_UNSIGNED_BYTE, target->GetBuffer());
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
202 break;
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
203
2033
23b0a42eea85 added support for floating-point images in OpenGLTexture
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2032
diff changeset
204 case Orthanc::PixelFormat_Float32:
23b0a42eea85 added support for floating-point images in OpenGLTexture
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205 glGetTexImage(GL_TEXTURE_2D, 0 /* base level */, GL_RED, GL_FLOAT, target->GetBuffer());
23b0a42eea85 added support for floating-point images in OpenGLTexture
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2032
diff changeset
206 break;
23b0a42eea85 added support for floating-point images in OpenGLTexture
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2032
diff changeset
207
2032
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
208 default:
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
209 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
d10bab7cc396 added OpenGLTexture::Download()
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parents: 1871
diff changeset
210 }
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
211
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
212 return target.release();
d10bab7cc396 added OpenGLTexture::Download()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1871
diff changeset
213 }
579
fadacfbf5538 OpenGL programs and textures
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214 }
fadacfbf5538 OpenGL programs and textures
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
215 }