Remove screenConfigs from __DRIscreen.

The screenConfigs field of __DRIscreen points back to the containing
__GLXscreenConfigs struct.  This is a serious abstraction violation; it
assumes that the loader is libGL and that there *is* a __GLXscreenConfigs
type in the loader.

Using the containerOf macro, we can get from the __DRIscreen pointer to
the containing __GLXscreenConfigs struct, at a place in the stack
where the above is a valid assumption.  Besides, the __DRI* structs shouldn't
hold state other than the private pointer.

9 files changed, 38 insertions, 47 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c
index 7a11672a8f..6ecde574b4 100644
--- a/src/mesa/drivers/dri/i915/intel_screen.c
+++ b/src/mesa/drivers/dri/i915/intel_screen.c
@@ -430,7 +430,6 @@ intelInitDriver(__DRIscreenPrivate * sPriv)
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
       (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->
                                       getProcAddress("glxEnableExtension"));
-   void *const psc = sPriv->psc->screenConfigs;
 
    if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
       fprintf(stderr,
@@ -524,11 +523,11 @@ intelInitDriver(__DRIscreenPrivate * sPriv)
    }
 
    if (glx_enable_extension != NULL) {
-      (*glx_enable_extension) (psc, "GLX_SGI_swap_control");
-      (*glx_enable_extension) (psc, "GLX_SGI_video_sync");
-      (*glx_enable_extension) (psc, "GLX_MESA_swap_control");
-      (*glx_enable_extension) (psc, "GLX_MESA_swap_frame_usage");
-      (*glx_enable_extension) (psc, "GLX_SGI_make_current_read");
+      (*glx_enable_extension) (sPriv->psc, "GLX_SGI_swap_control");
+      (*glx_enable_extension) (sPriv->psc, "GLX_SGI_video_sync");
+      (*glx_enable_extension) (sPriv->psc, "GLX_MESA_swap_control");
+      (*glx_enable_extension) (sPriv->psc, "GLX_MESA_swap_frame_usage");
+      (*glx_enable_extension) (sPriv->psc, "GLX_SGI_make_current_read");
    }
 
    /* If we've got a new enough DDX that's initializing TTM and giving us
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 29ea07d78e..97ccba09d8 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -271,7 +271,6 @@ static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv)
    I830DRIPtr         gDRIPriv = (I830DRIPtr)sPriv->pDevPriv;
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-   void * const psc = sPriv->psc->screenConfigs;
    volatile drmI830Sarea *sarea;
 
    if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
@@ -352,12 +351,12 @@ static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv)
    }
 
    if (glx_enable_extension != NULL) {
-      (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
-      (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
-      (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" );
-      (*glx_enable_extension)( psc, "GLX_MESA_copy_sub_buffer" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_swap_control" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_video_sync" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_control" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_frame_usage" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_make_current_read" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_copy_sub_buffer" );
    }
    
    return GL_TRUE;
diff --git a/src/mesa/drivers/dri/mach64/mach64_screen.c b/src/mesa/drivers/dri/mach64/mach64_screen.c
index 52b96bf0bc..733a16b6ae 100644
--- a/src/mesa/drivers/dri/mach64/mach64_screen.c
+++ b/src/mesa/drivers/dri/mach64/mach64_screen.c
@@ -210,7 +210,6 @@ mach64CreateScreen( __DRIscreenPrivate *sPriv )
    ATIDRIPtr serverInfo = (ATIDRIPtr)sPriv->pDevPriv;
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-   void * const psc = sPriv->psc->screenConfigs;
 
    if (sPriv->devPrivSize != sizeof(ATIDRIRec)) {
       fprintf(stderr,"\nERROR!  sizeof(ATIDRIRec) does not match passed size from device driver\n");
@@ -321,12 +320,12 @@ mach64CreateScreen( __DRIscreenPrivate *sPriv )
 
    if ( glx_enable_extension != NULL ) {
       if ( mach64Screen->irq != 0 ) {
-	 (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
-	 (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
-	 (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_SGI_swap_control" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_SGI_video_sync" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_control" );
       }
 
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_frame_usage" );
    }
 
    return mach64Screen;
diff --git a/src/mesa/drivers/dri/mga/mga_xmesa.c b/src/mesa/drivers/dri/mga/mga_xmesa.c
index 372d2ce433..5b9d09d0bf 100644
--- a/src/mesa/drivers/dri/mga/mga_xmesa.c
+++ b/src/mesa/drivers/dri/mga/mga_xmesa.c
@@ -200,7 +200,6 @@ mgaInitDriver(__DRIscreenPrivate *sPriv)
    MGADRIPtr         serverInfo = (MGADRIPtr)sPriv->pDevPriv;
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
        (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-   void * const psc = sPriv->psc->screenConfigs;
 
    if (sPriv->devPrivSize != sizeof(MGADRIRec)) {
       fprintf(stderr,"\nERROR!  sizeof(MGADRIRec) does not match passed size from device driver\n");
@@ -236,11 +235,11 @@ mgaInitDriver(__DRIscreenPrivate *sPriv)
    }
 
    if ( glx_enable_extension != NULL ) {
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
-      (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" );
-      (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
-      (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_control" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_frame_usage" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_make_current_read" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_swap_control" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_video_sync" );
    }
 
    if (serverInfo->chipset != MGA_CARD_TYPE_G200 &&
diff --git a/src/mesa/drivers/dri/r128/r128_screen.c b/src/mesa/drivers/dri/r128/r128_screen.c
index a84b54924a..9df9c65fae 100644
--- a/src/mesa/drivers/dri/r128/r128_screen.c
+++ b/src/mesa/drivers/dri/r128/r128_screen.c
@@ -100,7 +100,6 @@ r128CreateScreen( __DRIscreenPrivate *sPriv )
    R128DRIPtr r128DRIPriv = (R128DRIPtr)sPriv->pDevPriv;
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-   void * const psc = sPriv->psc->screenConfigs;
 
    if (sPriv->devPrivSize != sizeof(R128DRIRec)) {
       fprintf(stderr,"\nERROR!  sizeof(R128DRIRec) does not match passed size from device driver\n");
@@ -228,12 +227,12 @@ r128CreateScreen( __DRIscreenPrivate *sPriv )
 
    if ( glx_enable_extension != NULL ) {
       if ( r128Screen->irq != 0 ) {
-	 (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
-	 (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
-	 (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_SGI_swap_control" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_SGI_video_sync" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_control" );
       }
 
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_frame_usage" );
    }
 
    return r128Screen;
diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index 2d44532a84..8f9509de5b 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -343,7 +343,6 @@ radeonCreateScreen( __DRIscreenPrivate *sPriv )
    unsigned char *RADEONMMIO;
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-   void * const psc = sPriv->psc->screenConfigs;
 
    if (sPriv->devPrivSize != sizeof(RADEONDRIRec)) {
       fprintf(stderr,"\nERROR!  sizeof(RADEONDRIRec) does not match passed size from device driver\n");
@@ -734,17 +733,17 @@ radeonCreateScreen( __DRIscreenPrivate *sPriv )
 
    if ( glx_enable_extension != NULL ) {
       if ( screen->irq != 0 ) {
-	 (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
-	 (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
-	 (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_SGI_swap_control" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_SGI_video_sync" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_control" );
       }
 
-      (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_frame_usage" );
       if (IS_R200_CLASS(screen))
-	 (*glx_enable_extension)( psc, "GLX_MESA_allocate_memory" );
+	 (*glx_enable_extension)( sPriv->psc, "GLX_MESA_allocate_memory" );
 
-      (*glx_enable_extension)( psc, "GLX_MESA_copy_sub_buffer" );
-      (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_MESA_copy_sub_buffer" );
+      (*glx_enable_extension)( sPriv->psc, "GLX_SGI_make_current_read" );
    }
 
 #if RADEON_COMMON && defined(RADEON_COMMON_FOR_R200)
diff --git a/src/mesa/drivers/dri/savage/savage_xmesa.c b/src/mesa/drivers/dri/savage/savage_xmesa.c
index e8a63ae51b..9678c526aa 100644
--- a/src/mesa/drivers/dri/savage/savage_xmesa.c
+++ b/src/mesa/drivers/dri/savage/savage_xmesa.c
@@ -266,8 +266,7 @@ savageInitDriver(__DRIscreenPrivate *sPriv)
 		       __driConfigOptions, __driNConfigOptions);
 
    if (glx_enable_extension != NULL) {
-      (*glx_enable_extension)(sPriv->psc->screenConfigs,
-			      "GLX_SGI_make_current_read");
+      (*glx_enable_extension)(sPriv->psc, "GLX_SGI_make_current_read");
    }
 
 #if 0
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_screen.c b/src/mesa/drivers/dri/tdfx/tdfx_screen.c
index 899963d06d..e9033c5ef3 100644
--- a/src/mesa/drivers/dri/tdfx/tdfx_screen.c
+++ b/src/mesa/drivers/dri/tdfx/tdfx_screen.c
@@ -75,7 +75,6 @@ tdfxCreateScreen( __DRIscreenPrivate *sPriv )
    TDFXDRIPtr fxDRIPriv = (TDFXDRIPtr) sPriv->pDevPriv;
    PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-   void *const psc = sPriv->psc->screenConfigs;
 
    if (sPriv->devPrivSize != sizeof(TDFXDRIRec)) {
       fprintf(stderr,"\nERROR!  sizeof(TDFXDRIRec) does not match passed size from device driver\n");
@@ -117,7 +116,7 @@ tdfxCreateScreen( __DRIscreenPrivate *sPriv )
    }
 
    if (glx_enable_extension != NULL) {
-      (*glx_enable_extension)(psc, "GLX_SGI_make_current_read");
+      (*glx_enable_extension)(sPriv->psc, "GLX_SGI_make_current_read");
    }
 
    return GL_TRUE;
diff --git a/src/mesa/drivers/dri/unichrome/via_screen.c b/src/mesa/drivers/dri/unichrome/via_screen.c
index c10b7d1a9b..22e4bcebc9 100644
--- a/src/mesa/drivers/dri/unichrome/via_screen.c
+++ b/src/mesa/drivers/dri/unichrome/via_screen.c
@@ -100,7 +100,6 @@ viaInitDriver(__DRIscreenPrivate *sPriv)
     VIADRIPtr gDRIPriv = (VIADRIPtr)sPriv->pDevPriv;
     PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
       (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->getProcAddress("glxEnableExtension"));
-    void * const psc = sPriv->psc->screenConfigs;
 
     if (sPriv->devPrivSize != sizeof(VIADRIRec)) {
       fprintf(stderr,"\nERROR!  sizeof(VIADRIRec) does not match passed size from device driver\n");
@@ -177,13 +176,13 @@ viaInitDriver(__DRIscreenPrivate *sPriv)
 
     if ( glx_enable_extension != NULL ) {
        if ( viaScreen->irqEnabled ) {
-	  (*glx_enable_extension)( psc, "GLX_SGI_swap_control" );
-	  (*glx_enable_extension)( psc, "GLX_SGI_video_sync" );
-	  (*glx_enable_extension)( psc, "GLX_MESA_swap_control" );
+	  (*glx_enable_extension)( sPriv->psc, "GLX_SGI_swap_control" );
+	  (*glx_enable_extension)( sPriv->psc, "GLX_SGI_video_sync" );
+	  (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_control" );
        }
 
-       (*glx_enable_extension)( psc, "GLX_SGI_make_current_read" );
-       (*glx_enable_extension)( psc, "GLX_MESA_swap_frame_usage" );
+       (*glx_enable_extension)( sPriv->psc, "GLX_SGI_make_current_read" );
+       (*glx_enable_extension)( sPriv->psc, "GLX_MESA_swap_frame_usage" );
     }
 
     return GL_TRUE;