gallium/hud: typedef and use hud_st_invalidate_state_func to avoid cast

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20042>

src/gallium/auxiliary/hud/hud_context.c

@@ -1673,8 +1673,8 @@ hud_unset_draw_context(struct hud_context *hud)
 
 static bool
 hud_set_draw_context(struct hud_context *hud, struct cso_context *cso,
-                     void *st,
-                     void (*st_invalidate_state)(void *st, unsigned flags))
+                     struct st_context *st,
+                     hud_st_invalidate_state_func st_invalidate_state)
 {
    struct pipe_context *pipe = cso_get_pipe_context(cso);
 
@@ -1857,7 +1857,8 @@ hud_set_record_context(struct hud_context *hud, struct pipe_context *pipe)
  */
 struct hud_context *
 hud_create(struct cso_context *cso, struct hud_context *share,
-           void *st, void (*st_invalidate_state)(void *st, unsigned flags))
+           struct st_context *st,
+           hud_st_invalidate_state_func st_invalidate_state)
 {
    const char *share_env = debug_get_option("GALLIUM_HUD_SHARE", NULL);
    unsigned record_ctx = 0, draw_ctx = 0;

src/gallium/auxiliary/hud/hud_context.h

@@ -33,10 +33,15 @@ struct cso_context;
 struct pipe_context;
 struct pipe_resource;
 struct util_queue_monitoring;
+struct st_context;
+
+typedef void (*hud_st_invalidate_state_func)(struct st_context *st,
+                                             unsigned flags);
 
 struct hud_context *
 hud_create(struct cso_context *cso, struct hud_context *share,
-           void *st, void (*st_invalidate_state)(void *st, unsigned flags));
+           struct st_context *st,
+           hud_st_invalidate_state_func st_invalidate_state);
 
 void
 hud_destroy(struct hud_context *hud, struct cso_context *cso);

src/gallium/auxiliary/hud/hud_private.h

@@ -32,6 +32,7 @@
 #include "pipe/p_state.h"
 #include "util/list.h"
 #include "hud/font.h"
+#include "hud/hud_context.h"
 #include "cso_cache/cso_context.h"
 
 enum hud_counter {
@@ -53,8 +54,8 @@ struct hud_context {
    struct cso_context *cso;
 
    /* For notifying st_context to rebind states that we clobbered. */
-   void *st;
-   void (*st_invalidate_state)(void *st, unsigned flags);
+   struct st_context *st;
+   hud_st_invalidate_state_func st_invalidate_state;
 
    struct hud_batch_query_context *batch_query;
    struct list_head pane_list;

src/gallium/frontends/dri/dri_context.c

@@ -192,7 +192,7 @@ dri_create_context(struct dri_screen *screen,
                         ctx->st, (void*)st_context_invalidate_state);
       ctx->hud = hud_create(ctx->st->cso_context,
                             share_ctx ? share_ctx->hud : NULL,
-                            ctx->st, (void*)st_context_invalidate_state);
+                            ctx->st, st_context_invalidate_state);
    }
 
    /* Do this last. */

src/gallium/frontends/glx/xlib/xm_api.c

@@ -1014,7 +1014,7 @@ XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list,
    c->st->frontend_context = (void *) c;
 
    c->hud = hud_create(c->st->cso_context, NULL, c->st,
-                       (void*)st_context_invalidate_state);
+                       st_context_invalidate_state);
 
    return c;
 

src/gallium/frontends/wgl/stw_context.c

@@ -253,7 +253,7 @@ stw_create_context_attribs(HDC hdc, INT iLayerPlane, struct stw_context *shareCt
 
    if (ctx->st->cso_context) {
       ctx->hud = hud_create(ctx->st->cso_context, NULL, ctx->st,
-                            (void*)st_context_invalidate_state);
+                            st_context_invalidate_state);
    }
 
    return ctx;