libstage: add pass-thru pointer to stage_render()

It's common to need access to some rendering context from the
per-stage render functions, this simply plumbs an opaque pointer
from stage_render() down to the render functions.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/stage.h b/src/stage.h
index 31f134a..5416af6 100644
--- a/src/stage.h
+++ b/src/stage.h
@@ -22,14 +22,14 @@
 
 typedef struct stage_t stage_t;
 
-typedef void (stage_render_func_t)(const stage_t *stage, void *object, float alpha);
+typedef void (stage_render_func_t)(const stage_t *stage, void *object, float alpha, void *render_ctxt);
 typedef void (stage_free_func_t)(const stage_t *stage, void *object);
 typedef int (stage_match_func_t)(const stage_t *stage, void *object, void *key);
 
 stage_t * stage_new(stage_t *parent, int layer, const char *name, void *object, stage_render_func_t *render_func, stage_free_func_t *free_func, stage_match_func_t *match_func);
 void stage_replace(stage_t *stage, const char *name, void *object, stage_render_func_t *render_func, stage_free_func_t *free_func, stage_match_func_t *match_func);
 stage_t * stage_free(stage_t *stage);
-void stage_render(const stage_t *stage);
+void stage_render(const stage_t *stage, void *render_ctxt);
 void stage_clear(stage_t *stage);
 void stage_set_object(stage_t *stage, void *object);
 void * stage_get_object(const stage_t *stage);