gallium: delete pipe_screen::is_compression_modifier

this is unused

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31024>

src/gallium/auxiliary/driver_noop/noop_pipe.c

@@ -683,18 +683,6 @@ static void noop_query_compression_modifiers(struct pipe_screen *screen,
       oscreen->query_compression_modifiers(oscreen, fmt, rate, max, mods, count);
 }
 
-static bool noop_is_compression_modifier(struct pipe_screen *screen,
-                                         enum pipe_format format, uint64_t modifier,
-                                         uint32_t *rate)
-{
-   struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
-   struct pipe_screen *oscreen = noop_screen->oscreen;
-
-   if (oscreen->is_compression_modifier)
-      return oscreen->is_compression_modifier(oscreen, format, modifier, rate);
-   return false;
-}
-
 static void noop_get_driver_uuid(struct pipe_screen *screen, char *uuid)
 {
    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
@@ -858,7 +846,6 @@ struct pipe_screen *noop_screen_create(struct pipe_screen *oscreen)
       screen->set_fence_timeline_value = noop_set_fence_timeline_value;
    screen->query_compression_rates = noop_query_compression_rates;
    screen->query_compression_modifiers = noop_query_compression_modifiers;
-   screen->is_compression_modifier = noop_is_compression_modifier;
    screen->get_driver_pipe_screen = noop_get_driver_pipe_screen;
 
    slab_create_parent(&noop_screen->pool_transfers,

src/gallium/auxiliary/driver_trace/tr_screen.c

@@ -1481,32 +1481,6 @@ static void trace_screen_query_compression_modifiers(struct pipe_screen *_screen
    trace_dump_call_end();
 }
 
-static bool trace_screen_is_compression_modifier(struct pipe_screen *_screen,
-                                                 enum pipe_format format,
-                                                 uint64_t modifier,
-                                                 uint32_t *rate)
-{
-   struct trace_screen *tr_scr = trace_screen(_screen);
-   struct pipe_screen *screen = tr_scr->screen;
-   bool result;
-
-   trace_dump_call_begin("pipe_screen", "query_compression_rates");
-   trace_dump_arg(ptr, screen);
-   trace_dump_arg(format, format);
-   trace_dump_arg(uint, modifier);
-
-   result = screen->is_compression_modifier(screen, format, modifier, rate);
-
-   trace_dump_ret_begin();
-   trace_dump_uint(*rate);
-   trace_dump_bool(result);
-   trace_dump_ret_end();
-
-   trace_dump_call_end();
-
-   return result;
-}
-
 bool
 trace_enabled(void)
 {
@@ -1626,7 +1600,6 @@ trace_screen_create(struct pipe_screen *screen)
    SCR_INIT(driver_thread_add_job);
    SCR_INIT(query_compression_rates);
    SCR_INIT(query_compression_modifiers);
-   SCR_INIT(is_compression_modifier);
    tr_scr->base.get_driver_pipe_screen = tr_get_driver_pipe_screen;
 
    tr_scr->screen = screen;

src/gallium/drivers/panfrost/pan_screen.c

@@ -651,23 +651,6 @@ panfrost_query_compression_modifiers(struct pipe_screen *screen,
    *count = panfrost_afrc_get_modifiers(format, rate, max, modifiers);
 }
 
-static bool
-panfrost_is_compression_modifier(struct pipe_screen *screen,
-                                 enum pipe_format format, uint64_t modifier,
-                                 uint32_t *rate)
-{
-   struct panfrost_device *dev = pan_device(screen);
-   uint32_t compression_rate = panfrost_afrc_get_rate(format, modifier);
-
-   if (!dev->has_afrc)
-      return false;
-
-   if (rate)
-      *rate = compression_rate;
-
-   return (compression_rate != 0);
-}
-
 /* We always support linear and tiled operations, both external and internal.
  * We support AFBC for a subset of formats, and colourspace transform for a
  * subset of those. */
@@ -1008,7 +991,6 @@ panfrost_create_screen(int fd, const struct pipe_screen_config *config,
    screen->base.query_compression_rates = panfrost_query_compression_rates;
    screen->base.query_compression_modifiers =
       panfrost_query_compression_modifiers;
-   screen->base.is_compression_modifier = panfrost_is_compression_modifier;
 
    panfrost_resource_screen_init(&screen->base);
    pan_blend_shader_cache_init(&dev->blend_shaders,

src/gallium/include/pipe/p_screen.h

@@ -831,20 +831,6 @@ struct pipe_screen {
                                        enum pipe_format format, uint32_t rate,
                                        int max, uint64_t *modifiers, int *count);
 
-   /**
-    * Determine whether the modifer is enabling fixed-rate compression for
-    * the given screen and format.
-    *
-    * If \p rate is not NULL, the value it points to will be set to the
-    * bitrate (bits per component) associated with the modifier.
-    *
-    * \return true if the format+modifier pair is enabling fixed-rate
-    *         compression on \p screen, false otherwise.
-    */
-   bool (*is_compression_modifier)(struct pipe_screen *screen,
-                                   enum pipe_format format, uint64_t modifier,
-                                   uint32_t *rate);
-
    /**
     * Check if the given \p target buffer is supported as output (or input for
     * encode) for this \p profile and \p entrypoint.