Can compile "loader" and "layers" on Windows and Linux ...
These directories build and are partially turned-on on Windows, using the "tri"
demo (follow-on commit) and a "NULL driver" that was created out of the
sample/Intel driver. The GetProcAddress() is not yet finding symbols in the
NULL driver.
For now:
- "C:\Windows\System32" is the default XGL driver directory. The getenv()
isn't yet working. I suggest creating your own #define in order to point to
where a driver is.
- In order to recognize a Windows driver, we must look at both its prefix and
suffix (i.e. it is named "XGL_*.dll", e.g. "XGL_i965.dll).
- We autogenerate Windows ".def" files for the layers. Additional info is:
- This is necessary in order for a DLL to export symbols that can be queried
using GetProcAddress(). We can't use the normal Windows approach of
declaring these functions using "__declspec(dllexport)", because these
functions are declared in "xgl.h".
- This involves adding and running the new "xgl-win-def-file-generate.py"
file.
- NOTE: Layers don't have the xglInitAndEnumerateGpus() entrypoint, just the
xglGetProcAddr() entrypoint (and now the xglEnumerateLayers() entrypoint).
Generating them is pretty simple.
NOTE: In order to build on a 64-bit Windows 7/8 system, I did the following:
- Install VisualStudio 2013 Professional
- Install CMake from: http://www.cmake.org/cmake/resources/software.html
- I let it add itself to the system PATH environment variable.
- Install Python 3 from: https://www.python.org/downloads
- I let it add itself to the system PATH environment variable.
- Obtain the Git repository, checkout the "ian-150127-WinBuild" branch.
- Using a Cygwin shell: I did the following:
- "cd" to the top-level directory (i.e. the one that contains the ".git"
directory).
- "mkdir _out64"
- "cd _out64"
- "cmake -G "Visual Studio 12 Win64" .."
- At this point, I used WindowsExplorer to open the "XGL.sln" file. I can
build. CMake causes the build shortcut to be "Ctrl-Shift-B" instead of the
normal "F7". I had to right-click the "ALL_BUILD" project, go to
Properties->Debugging and change the debug Command and Working Directory to
point to "tri.exe" and where the executable are. At this point, I can debug
(using the normal "F5" shortcut).
diff --git a/loader/dirent_on_windows.h b/loader/dirent_on_windows.h
new file mode 100644
index 0000000..a02a0d8
--- /dev/null
+++ b/loader/dirent_on_windows.h
@@ -0,0 +1,50 @@
+#ifndef DIRENT_INCLUDED
+#define DIRENT_INCLUDED
+
+/*
+
+ Declaration of POSIX directory browsing functions and types for Win32.
+
+ Author: Kevlin Henney (kevlin@acm.org, kevlin@curbralan.com)
+ History: Created March 1997. Updated June 2003.
+ Rights: See end of file.
+
+*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef struct DIR DIR;
+
+struct dirent
+{
+ char *d_name;
+};
+
+DIR *opendir(const char *);
+int closedir(DIR *);
+struct dirent *readdir(DIR *);
+void rewinddir(DIR *);
+
+/*
+
+ Copyright Kevlin Henney, 1997, 2003. All rights reserved.
+
+ Permission to use, copy, modify, and distribute this software and its
+ documentation for any purpose is hereby granted without fee, provided
+ that this copyright and permissions notice appear in all copies and
+ derivatives.
+
+ This software is supplied "as is" without express or implied warranty.
+
+ But that said, if there are any problems please get in touch.
+
+*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif