<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body bgcolor="white" lang="EN-US" link="#0563C1" vlink="#954F72"> <div class="WordSection1"> Thanks for the tip Matt. I compiled with the preprocessor output, and didn't notice anything glaring in the output file (the macros in question looks like they were parsed correctly).<o:p></o:p> <a name="_MailEndCompose"><o:p> </o:p></a> To eliminate any project-specific setup issues, I started a brand new Win32 project in VS2013 and VS2010, included <gst/gl/gl.h> (along with relevant incude paths), and it produced identical syntax errors. If I mouse over the GST_GL_EXT_FUNCTION (which has the red syntax-error squiggles underneath it), VS shows: "Error: a calling convention may not be followed by a nested declarator. " Investigating that further, I changed the following in gstglapi.h: <o:p></o:p> <o:p> </o:p> #define GST_GL_EXT_FUNCTION(ret, name, args) \<o:p></o:p> ret GSTGLAPI (*name) args;<o:p></o:p> <o:p> </o:p> To:<o:p></o:p> <o:p> </o:p> #define GST_GL_EXT_FUNCTION(ret, name, args) \<o:p></o:p> ret GSTGLAPI name args;<o:p></o:p> <o:p> </o:p> Which was able to build and run using gl elements in gstreamer (glupload, glfilterblur, glimagesink). GSTGLAPI eventually points to _stdcall, so I'm guessing Visual Studio's compiler doesn't like the pointer syntax for __stdcall? <o:p></o:p> <o:p> </o:p> - Gordon<o:p></o:p> <o:p> </o:p> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"> From: Matthew Waters [mailto:ystreet00@gmail.com] Sent: Wednesday, September 30, 2015 3:09 AM To: Gordon Nickel <gordon.nickel@downstream.com>; gstreamer-devel@lists.freedesktop.org Subject: Re: GstGlApi compile error<o:p></o:p> </div> </div> <o:p> </o:p> On 30/09/15 10:38, Gordon Nickel wrote: <o:p></o:p> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> Hi,<o:p></o:p> <o:p></o:p> I'm attempting to use the gl api for playback in a C++ app, and getting a wall of compile errors when I include gst/gl/gl.h using 1.6.0 in Windows with VS2013. The error is:<o:p></o:p> <o:p></o:p> 1>c:\gstreamer\1.0\x86\include\gstreamer-1.0\gst\gl\glprototypes\base.h(51): error C2059: syntax error : '('<o:p></o:p> 1>c:\gstreamer\1.0\x86\include\gstreamer-1.0\gst\gl\glprototypes\base.h(51): error C2238: unexpected token(s) preceding ';'<o:p></o:p> Which points to this line (and every other line using GST_GL_EXT_FUNCTION):<o:p></o:p> <o:p></o:p> GST_GL_EXT_FUNCTION (void, BindTexture,<o:p></o:p> (GLenum target, GLuint texture))<o:p></o:p> <o:p></o:p> I've double-checked all the include paths - is there something I'm missing? <o:p></o:p> </blockquote> Nothing comes to mind off the top of my head. A simple c++ application that just performs #include <gst/gl/gl.h> works with both g++ and gcc fine so I'm not sure what the problem could be without seeing code/more errors. Of course the real error could be somewhere else that's confusing the preprocessor into generating bad code. You could try examining the preprocessor's output see <a href="https://msdn.microsoft.com/en-us/library/8z9z0bx6.aspx">https://msdn.microsoft.com/en-us/library/8z9z0bx6.aspx</a>. Cheers -Matt <o:p></o:p> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> Thanks!<o:p></o:p> <o:p></o:p> Gordon Nickel Lead Developer downstream 1624 NW Johnson Street Portland, OR 97209, USA 503.226.1944 main 503.226.1283 fax<o:p></o:p> <o:p></o:p> </blockquote> <o:p> </o:p> </div> </body> </html>