glx: Export the MESA GL Interop functions through glXGetProcAddress

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Antonio Gomes <antoniospg100@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24573>

src/glx/g_glxglvnddispatchfuncs.c

@@ -5,6 +5,8 @@
 #include "glxglvnddispatchfuncs.h"
 #include "g_glxglvnddispatchindices.h"
 
+#include "GL/mesa_glinterop.h"
+
 const int DI_FUNCTION_COUNT = DI_LAST_INDEX;
 /* Allocate an extra 'dummy' to ease lookup. See FindGLXFunction() */
 int __glXDispatchTableIndices[DI_LAST_INDEX + 1];
@@ -39,6 +41,9 @@ const char * const __glXDispatchTableStrings[DI_LAST_INDEX] = {
     // glXDestroyPixmap implemented by libglvnd
     // glXDestroyWindow implemented by libglvnd
     // glXFreeContextEXT implemented by libglvnd
+    __ATTRIB(GLInteropExportObjectMESA),
+    __ATTRIB(GLInteropFlushObjectsMESA),
+    __ATTRIB(GLInteropQueryDeviceInfoMESA),
     // glXGetClientString implemented by libglvnd
     // glXGetConfig implemented by libglvnd
     __ATTRIB(GetContextIDEXT),
@@ -306,6 +311,63 @@ static void dispatch_DestroyGLXPbufferSGIX(Display *dpy, GLXPbuffer pbuf)
 
 
 
+static int dispatch_GLInteropExportObjectMESA(Display *dpy, GLXContext ctx,
+                                              struct mesa_glinterop_export_in *in,
+                                              struct mesa_glinterop_export_out *out)
+{
+    PFNMESAGLINTEROPGLXEXPORTOBJECTPROC pGLInteropExportObjectMESA;
+    __GLXvendorInfo *dd;
+
+    dd = GetDispatchFromContext(ctx);
+    if (dd == NULL)
+        return 0;
+
+    __FETCH_FUNCTION_PTR(GLInteropExportObjectMESA);
+    if (pGLInteropExportObjectMESA == NULL)
+        return 0;
+
+    return pGLInteropExportObjectMESA(dpy, ctx, in, out);
+}
+
+
+static int dispatch_GLInteropFlushObjectsMESA(Display *dpy, GLXContext ctx,
+                                              unsigned count,
+                                              struct mesa_glinterop_export_in *resources,
+                                              GLsync *sync)
+{
+    PFNMESAGLINTEROPGLXFLUSHOBJECTSPROC pGLInteropFlushObjectsMESA;
+    __GLXvendorInfo *dd;
+
+    dd = GetDispatchFromContext(ctx);
+    if (dd == NULL)
+        return 0;
+
+    __FETCH_FUNCTION_PTR(GLInteropFlushObjectsMESA);
+    if (pGLInteropFlushObjectsMESA == NULL)
+        return 0;
+
+    return pGLInteropFlushObjectsMESA(dpy, ctx, count, resources, sync);
+}
+
+
+static int dispatch_GLInteropQueryDeviceInfoMESA(Display *dpy, GLXContext ctx,
+                                                 struct mesa_glinterop_device_info *out)
+{
+    PFNMESAGLINTEROPGLXQUERYDEVICEINFOPROC pGLInteropQueryDeviceInfoMESA;
+    __GLXvendorInfo *dd;
+
+    dd = GetDispatchFromContext(ctx);
+    if (dd == NULL)
+        return 0;
+
+    __FETCH_FUNCTION_PTR(GLInteropQueryDeviceInfoMESA);
+    if (pGLInteropQueryDeviceInfoMESA == NULL)
+        return 0;
+
+    return pGLInteropQueryDeviceInfoMESA(dpy, ctx, out);
+}
+
+
 static GLXContextID dispatch_GetContextIDEXT(const GLXContext ctx)
 {
     PFNGLXGETCONTEXTIDEXTPROC pGetContextIDEXT;
@@ -981,6 +1043,9 @@ const void * const __glXDispatchFunctions[DI_LAST_INDEX + 1] = {
     __ATTRIB(CreateGLXPixmapMESA),
     __ATTRIB(CreateGLXPixmapWithConfigSGIX),
     __ATTRIB(DestroyGLXPbufferSGIX),
+    __ATTRIB(GLInteropExportObjectMESA),
+    __ATTRIB(GLInteropFlushObjectsMESA),
+    __ATTRIB(GLInteropQueryDeviceInfoMESA),
     __ATTRIB(GetContextIDEXT),
     __ATTRIB(GetCurrentDisplayEXT),
     __ATTRIB(GetDriverConfig),

src/glx/g_glxglvnddispatchindices.h

@@ -31,6 +31,9 @@ typedef enum __GLXdispatchIndex {
     // DestroyPixmap implemented by libglvnd
     // DestroyWindow implemented by libglvnd
     // FreeContextEXT implemented by libglvnd
+    DI_GLInteropExportObjectMESA,
+    DI_GLInteropFlushObjectsMESA,
+    DI_GLInteropQueryDeviceInfoMESA,
     // GetClientString implemented by libglvnd
     // GetConfig implemented by libglvnd
     DI_GetContextIDEXT,

src/glx/glxcmds.c

@@ -2339,6 +2339,13 @@ static const struct name_address_pair GLX_functions[] = {
    GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA),
    GLX_FUNCTION(glXQueryCurrentRendererStringMESA),
 
+   /*** GLX_MESA_gl_interop ***/
+#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
+   GLX_FUNCTION2(glXGLInteropQueryDeviceInfoMESA, MesaGLInteropGLXQueryDeviceInfo),
+   GLX_FUNCTION2(glXGLInteropExportObjectMESA, MesaGLInteropGLXExportObject),
+   GLX_FUNCTION2(glXGLInteropFlushObjectsMESA, MesaGLInteropGLXFlushObjects),
+#endif
+
    {NULL, NULL}                 /* end of list */
 };