clean-up/re-org of intel_framebuffer code

src/mesa/drivers/dri/intel_winsys/intel_context.c

@@ -206,16 +206,17 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
    if (driContextPriv) {
       struct intel_context *intel
          = (struct intel_context *) driContextPriv->driverPrivate;
-      struct st_framebuffer *draw_fb
-         = (struct st_framebuffer *) driDrawPriv->driverPrivate;
-      struct st_framebuffer *read_fb
-         = (struct st_framebuffer *) driReadPriv->driverPrivate;
+      struct intel_framebuffer *draw_fb = intel_framebuffer(driDrawPriv);
+      struct intel_framebuffer *read_fb = intel_framebuffer(driReadPriv);
+
+      assert(draw_fb->stfb);
+      assert(read_fb->stfb);
 
       /* this is a hack so we have a valid context when the region allocation
          is done. Need a per-screen context? */
       intel->intelScreen->dummyctxptr = intel;
 
-      st_make_current(intel->st, draw_fb, read_fb);
+      st_make_current(intel->st, draw_fb->stfb, read_fb->stfb);
 
       if ((intel->driDrawable != driDrawPriv) ||
 	  (intel->lastStamp != driDrawPriv->lastStamp)) {

src/mesa/drivers/dri/intel_winsys/intel_context.h

@@ -46,6 +46,9 @@ struct st_context;
 
 #define INTEL_MAX_FIXUP 64
 
+/**
+ * Intel rendering context, contains a state tracker and intel-specific info.
+ */
 struct intel_context
 {
    struct st_context *st;
@@ -79,6 +82,22 @@ struct intel_context
    driOptionCache optionCache;
 };
 
+
+
+/**
+ * Intel framebuffer.
+ */
+struct intel_framebuffer
+{
+   struct st_framebuffer *stfb;
+
+   /* other fields TBD */
+   int other;
+};
+
+
+
+
 /* These are functions now:
  */
 void LOCK_HARDWARE( struct intel_context *intel );
@@ -124,10 +143,7 @@ extern int __intel_debug;
 #define PCI_CHIP_Q33_G			0x29D2
 
 
-/*======================================================================
- * Inline conversion functions.  
- * These are better-typed than the macros used previously:
- */
+/** Cast wrapper */
 static INLINE struct intel_context *
 intel_context(GLcontext * ctx)
 {
@@ -135,4 +151,12 @@ intel_context(GLcontext * ctx)
 }
 
 
+/** Cast wrapper */
+static INLINE struct intel_framebuffer *
+intel_framebuffer(__DRIdrawablePrivate * driDrawPriv)
+{
+   return (struct intel_framebuffer *) driDrawPriv->driverPrivate;
+}
+
+
 #endif

src/mesa/drivers/dri/intel_winsys/intel_screen.c

@@ -29,6 +29,7 @@
 #include "vblank.h"
 #include "xmlpool.h"
 
+#include "intel_context.h"
 #include "intel_screen.h"
 #include "intel_batchbuffer.h"
 #include "intel_swapbuffers.h"
@@ -280,8 +281,17 @@ intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
       return GL_FALSE;          /* not implemented */
    }
    else {
-      struct st_framebuffer *stfb = st_create_framebuffer(mesaVis);
-      driDrawPriv->driverPrivate = (void *) stfb;
+      struct intel_framebuffer *intelfb = CALLOC_STRUCT(intel_framebuffer);
+      if (!intelfb)
+         return GL_FALSE;
+
+      intelfb->stfb = st_create_framebuffer(mesaVis);
+      if (!intelfb->stfb) {
+         free(intelfb);
+         return GL_FALSE;
+      }
+
+      driDrawPriv->driverPrivate = (void *) intelfb;
       return GL_TRUE;
    }
 }
@@ -289,8 +299,10 @@ intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
 static void
 intelDestroyBuffer(__DRIdrawablePrivate * driDrawPriv)
 {
-   st_unreference_framebuffer((struct st_framebuffer **)
-                              (&(driDrawPriv->driverPrivate)));
+   struct intel_framebuffer *intelfb = intel_framebuffer(driDrawPriv);
+   assert(intelfb->stfb);
+   st_unreference_framebuffer(&intelfb->stfb);
+   free(intelfb);
 }
 
 

src/mesa/drivers/dri/intel_winsys/intel_swapbuffers.c

@@ -70,7 +70,7 @@ get_color_surface(struct intel_framebuffer *intel_fb,
                   GLuint bufferIndex)
 {
    struct st_renderbuffer *strb
-      = st_renderbuffer(intel_fb->Base.Attachment[bufferIndex].Renderbuffer);
+      = st_renderbuffer(intel_fb->stfb->Base.Attachment[bufferIndex].Renderbuffer);
    if (strb)
       return strb->surface;
    return NULL;
@@ -236,9 +236,9 @@ intelDisplaySurface(__DRIdrawablePrivate * dPriv,
 void
 intelUpdateWindowSize(__DRIdrawablePrivate *dPriv)
 {
-   struct st_framebuffer *stfb
-      = (struct st_framebuffer *) dPriv->driverPrivate;
-   st_resize_framebuffer(stfb, dPriv->w, dPriv->h);
+   struct intel_framebuffer *intelfb = intel_framebuffer(dPriv);
+   assert(intelfb->stfb);
+   st_resize_framebuffer(intelfb->stfb, dPriv->w, dPriv->h);
 }
 
 

src/mesa/drivers/dri/intel_winsys/intel_swapbuffers.h

@@ -25,19 +25,8 @@
  * 
  **************************************************************************/
 
-#ifndef INTEL_BUFFERS_H
-#define INTEL_BUFFERS_H
-
-
-
-/**
- * Intel framebuffer, derived from gl_framebuffer.
- */
-struct intel_framebuffer
-{
-   struct gl_framebuffer Base;
-
-};
+#ifndef INTEL_SWAPBUFFERS_H
+#define INTEL_SWAPBUFFERS_H
 
 
 extern void intelDisplaySurface(__DRIdrawablePrivate * dPriv,
@@ -52,4 +41,4 @@ extern void intelCopySubBuffer(__DRIdrawablePrivate * dPriv,
 extern void intelUpdateWindowSize(__DRIdrawablePrivate *dPriv);
 
 
-#endif /* INTEL_BUFFERS_H */
+#endif /* INTEL_SWAPBUFFERS_H */