Revert "glx: Implement GLX_EXT_no_config_context"

This reverts commit 0d635ccc912d7122f35f81eec27d8b2c0a2a7a28.

Gitlab: https://gitlab.freedesktop.org/mesa/mesa/issues/1207

1 files changed, 14 insertions, 35 deletions

diff --git a/src/glx/create_context.c b/src/glx/create_context.c
index fa15d551af0..38e949ab4cd 100644
--- a/src/glx/create_context.c
+++ b/src/glx/create_context.c
@@ -33,14 +33,6 @@
 #error This code requires sizeof(uint32_t) == sizeof(int).
 #endif
 
-/* debian stretch still has ancient headers and we're apparently still
- * using that for gitlab ci. please delete me when that's fixed.
- */
-#ifndef X_GLXCreateContextAttribsARB
-#warning Please update your GLX protocol headers
-#define X_GLXCreateContextAttribsARB 34
-#endif
-
 _X_HIDDEN GLXContext
 glXCreateContextAttribsARB(Display *dpy, GLXFBConfig config,
 			   GLXContext share_context, Bool direct,
@@ -55,41 +47,28 @@ glXCreateContextAttribsARB(Display *dpy, GLXFBConfig config,
    xcb_generic_error_t *err;
    xcb_void_cookie_t cookie;
    unsigned dummy_err = 0;
-   int screen = -1;
 
-   if (dpy == NULL)
-      return NULL;
-
-   /* Count the number of attributes specified by the application.  All
-    * attributes appear in pairs, except the terminating None.
-    */
-   if (attrib_list != NULL) {
-      for (/* empty */; attrib_list[num_attribs * 2] != 0; num_attribs++)
-	 /* empty */ ;
-   }
 
-   if (cfg) {
-      screen = cfg->screen;
-   } else {
-      for (unsigned int i = 0; i < num_attribs; i++) {
-         if (attrib_list[i * 2] == GLX_SCREEN)
-            screen = attrib_list[i * 2 + 1];
-      }
-      if (screen == -1) {
-         __glXSendError(dpy, BadValue, 0, X_GLXCreateContextAttribsARB, True);
-         return NULL;
-      }
-   }
+   if (dpy == NULL || cfg == NULL)
+      return NULL;
 
    /* This means that either the caller passed the wrong display pointer or
     * one of the internal GLX data structures (probably the fbconfig) has an
     * error.  There is nothing sensible to do, so return an error.
     */
-   psc = GetGLXScreenConfigs(dpy, screen);
+   psc = GetGLXScreenConfigs(dpy, cfg->screen);
    if (psc == NULL)
       return NULL;
 
-   assert(screen == psc->scr);
+   assert(cfg->screen == psc->scr);
+
+   /* Count the number of attributes specified by the application.  All
+    * attributes appear in pairs, except the terminating None.
+    */
+   if (attrib_list != NULL) {
+      for (/* empty */; attrib_list[num_attribs * 2] != 0; num_attribs++)
+	 /* empty */ ;
+   }
 
    if (direct && psc->vtable->create_context_attribs) {
       /* GLX drops the error returned by the driver.  The expectation is that
@@ -125,8 +104,8 @@ glXCreateContextAttribsARB(Display *dpy, GLXFBConfig config,
    cookie =
       xcb_glx_create_context_attribs_arb_checked(c,
 						 gc->xid,
-						 cfg ? cfg->fbconfigID : 0,
-						 screen,
+						 cfg->fbconfigID,
+						 cfg->screen,
 						 gc->share_xid,
 						 gc->isDirect,
 						 num_attribs,