Mesa (master): glx: Allow a context-specific fallback for glXGetProcAddress
Jeremy Huddleston
jeremyhu at kemper.freedesktop.org
Mon Jun 20 23:56:05 UTC 2011
Module: Mesa
Branch: master
Commit: 559e4f8ebcb186b491d7d687ac43f22a62448fc1
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=559e4f8ebcb186b491d7d687ac43f22a62448fc1
Author: Jeremy Huddleston <jeremyhu at apple.com>
Date: Wed Jun 15 00:27:55 2011 -0700
glx: Allow a context-specific fallback for glXGetProcAddress
In applegl, GLX advertises the same extensions provided by OpenGL.framework
even if such extensions are not provided by glapi. This allows a client
to get access to such API.
Signed-off-by: Jeremy Huddleston <jeremyhu at apple.com>
---
src/glx/applegl_glx.c | 9 +++++++++
src/glx/dri2_glx.c | 1 +
src/glx/dri_glx.c | 1 +
src/glx/drisw_glx.c | 1 +
src/glx/glxclient.h | 2 +-
src/glx/glxcmds.c | 6 ++++++
src/glx/indirect_glx.c | 1 +
7 files changed, 20 insertions(+), 1 deletions(-)
diff --git a/src/glx/applegl_glx.c b/src/glx/applegl_glx.c
index 4bf4672..8766c88 100644
--- a/src/glx/applegl_glx.c
+++ b/src/glx/applegl_glx.c
@@ -34,10 +34,12 @@
#if defined(GLX_USE_APPLEGL)
#include <stdbool.h>
+#include <dlfcn.h>
#include "glxclient.h"
#include "apple_glx_context.h"
#include "apple_glx.h"
+#include "apple_cgl.h"
#include "glx_error.h"
static void
@@ -82,6 +84,12 @@ applegl_wait_x(struct glx_context *gc)
apple_glx_waitx(dpy, gc->driContext);
}
+static void *
+applegl_get_proc_address(const char *symbol)
+{
+ return dlsym(apple_cgl_get_dl_handle(), symbol);
+}
+
static const struct glx_context_vtable applegl_context_vtable = {
applegl_destroy_context,
applegl_bind_context,
@@ -91,6 +99,7 @@ static const struct glx_context_vtable applegl_context_vtable = {
DRI_glXUseXFont,
NULL, /* bind_tex_image, */
NULL, /* release_tex_image, */
+ applegl_get_proc_address,
};
struct glx_context *
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index e7c18ff..80e4da3 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -767,6 +767,7 @@ static const struct glx_context_vtable dri2_context_vtable = {
DRI_glXUseXFont,
dri2_bind_tex_image,
dri2_release_tex_image,
+ NULL, /* get_proc_address */
};
static void
diff --git a/src/glx/dri_glx.c b/src/glx/dri_glx.c
index d59784c..6f3b2b8 100644
--- a/src/glx/dri_glx.c
+++ b/src/glx/dri_glx.c
@@ -558,6 +558,7 @@ static const struct glx_context_vtable dri_context_vtable = {
DRI_glXUseXFont,
NULL,
NULL,
+ NULL, /* get_proc_address */
};
static struct glx_context *
diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
index 0075695..07d4955 100644
--- a/src/glx/drisw_glx.c
+++ b/src/glx/drisw_glx.c
@@ -296,6 +296,7 @@ static const struct glx_context_vtable drisw_context_vtable = {
DRI_glXUseXFont,
NULL,
NULL,
+ NULL, /* get_proc_address */
};
static struct glx_context *
diff --git a/src/glx/glxclient.h b/src/glx/glxclient.h
index 88a6edd..0641528 100644
--- a/src/glx/glxclient.h
+++ b/src/glx/glxclient.h
@@ -224,7 +224,7 @@ struct glx_context_vtable {
GLXDrawable drawable,
int buffer, const int *attrib_list);
void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
-
+ void * (*get_proc_address)(const char *symbol);
};
extern void
diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index cd8bc97..e6816ea 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -2521,6 +2521,12 @@ _X_EXPORT void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
#endif
if (!f)
f = (gl_function) _glapi_get_proc_address((const char *) procName);
+ if (!f) {
+ struct glx_context *gc = __glXGetCurrentContext();
+
+ if (gc != NULL && gc->vtable->get_proc_address != NULL)
+ f = gc->vtable->get_proc_address((const char *) procName);
+ }
}
return f;
}
diff --git a/src/glx/indirect_glx.c b/src/glx/indirect_glx.c
index b4f16c7..7b542dd 100644
--- a/src/glx/indirect_glx.c
+++ b/src/glx/indirect_glx.c
@@ -335,6 +335,7 @@ static const struct glx_context_vtable indirect_context_vtable = {
indirect_use_x_font,
indirect_bind_tex_image,
indirect_release_tex_image,
+ NULL, /* get_proc_address */
};
/**
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