# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1681823916 -7200
# Node ID 66c130af0d3c0d71c7d39562b000ba3b6753c520
# Parent  d4e769a0961f12dd1585a991524276a056ec05f9
OpenGLTexture::SetClampingToZero() is not available in wasm

diff -r d4e769a0961f -r 66c130af0d3c OrthancStone/Sources/OpenGL/OpenGLTexture.cpp
--- a/OrthancStone/Sources/OpenGL/OpenGLTexture.cpp	Tue Apr 18 10:53:09 2023 +0200
+++ b/OrthancStone/Sources/OpenGL/OpenGLTexture.cpp	Tue Apr 18 15:18:36 2023 +0200
@@ -273,12 +273,25 @@
 
     void OpenGLTexture::SetClampingToZero()
     {
+      ORTHANC_OPENGL_CHECK("Entering OpenGLTexture::SetClampingToZero()");
+      
+#if defined(__EMSCRIPTEN__)
+      /**
+       * This is because WebGL 2 derives from OpenGL ES 3.0, which
+       * doesn't support GL_CLAMP_TO_BORDER, as can be seen here:
+       * https://registry.khronos.org/OpenGL-Refpages/es3.0/html/glTexParameter.xhtml
+       **/
+      LOG(WARNING) << "OpenGLTexture::SetClampingToZero() is not available in WebGL 2";
+#else
       glBindTexture(GL_TEXTURE_2D, texture_);
       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
 
       GLfloat colorfv[4] = { 0, 0, 0, 0 };
       glTextureParameterfv(texture_, GL_TEXTURE_BORDER_COLOR, colorfv);
+#endif
+      
+      ORTHANC_OPENGL_CHECK("Exiting OpenGLTexture::SetClampingToZero()");
     }