Make it combilable with Qt 5.13 and older

imagescrollareagl.cpp

@@ -24,8 +24,13 @@ const RawImageType rawImageTypes[] = {
     {QOpenGLTexture::Red, QOpenGLTexture::R8_UNorm, QOpenGLTexture::UInt8, true},
     {QOpenGLTexture::Red, QOpenGLTexture::R16_UNorm, QOpenGLTexture::UInt16, true},
     {QOpenGLTexture::Red, QOpenGLTexture::R32F, QOpenGLTexture::Float32, true},
+#ifdef COLOR_MANAGMENT
     {QOpenGLTexture::RGB, QOpenGLTexture::SRGB8, QOpenGLTexture::UInt8, false},
-    {QOpenGLTexture::RGBA,QOpenGLTexture::SRGB8_Alpha8, QOpenGLTexture::UInt8, false},
+    {QOpenGLTexture::RGBA,QOpenGLTexture::SRGB8, QOpenGLTexture::UInt8, false},
+#else
+    {QOpenGLTexture::RGB, QOpenGLTexture::RGB8_UNorm, QOpenGLTexture::UInt8, false},
+    {QOpenGLTexture::RGBA,QOpenGLTexture::RGB8_UNorm, QOpenGLTexture::UInt8, false},
+#endif
     {QOpenGLTexture::RGB, QOpenGLTexture::RGB16_UNorm, QOpenGLTexture::UInt16, false},
     {QOpenGLTexture::RGBA, QOpenGLTexture::RGB16_UNorm, QOpenGLTexture::UInt16, false},
     {QOpenGLTexture::RGB, QOpenGLTexture::RGB32F, QOpenGLTexture::Float32, false}
@@ -79,7 +84,9 @@ ImageWidget::ImageWidget(Database *database, QWidget *parent) : QOpenGLWidget(pa
     });
 
     setMouseTracking(true);
+#ifdef COLOR_MANAGMENT
     setTextureFormat(GL_SRGB8_ALPHA8);
+#endif
 }
 
 ImageWidget::~ImageWidget()
@@ -290,7 +297,9 @@ void ImageWidget::paintGL()
     }
     else
     {
+#ifdef COLOR_MANAGMENT
         if(m_srgb)f->glEnable(GL_FRAMEBUFFER_SRGB);
+#endif
         m_vao->bind();
         m_image->bind(0);
         m_program->bind();
@@ -301,7 +310,9 @@ void ImageWidget::paintGL()
         m_program->setUniformValue("bw", m_bwImg);
         m_program->setUniformValue("invert", m_invert);
         f->glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+#ifdef COLOR_MANAGMENT
         if(m_srgb)f->glDisable(GL_FRAMEBUFFER_SRGB);
+#endif
     }
 
 }