gallium: new pipe->texture_update() function

Called whenever texture data is changed (glTexImage, glTexSubImage,
glCopyTexSubImage, etc).

src/gallium/drivers/cell/ppu/cell_context.c

@@ -244,6 +244,7 @@ cell_create_context(struct pipe_winsys *winsys, struct cell_winsys *cws)
    /* textures */
    cell->pipe.texture_create = cell_texture_create;
    cell->pipe.texture_release = cell_texture_release;
+   cell->pipe.texture_update = cell_texture_update;
    cell->pipe.get_tex_surface = cell_get_tex_surface;
 
    cell->pipe.set_sampler_texture = cell_set_sampler_texture;

src/gallium/drivers/cell/ppu/cell_texture.c

@@ -128,6 +128,14 @@ cell_texture_release(struct pipe_context *pipe, struct pipe_texture **pt)
 }
 
 
+void
+cell_texture_update(struct pipe_context *pipe, struct pipe_texture *texture)
+{
+   /* XXX TO DO:  re-tile the texture data ... */
+
+}
+
+
 /**
  * Called via pipe->get_tex_surface()
  */

src/gallium/drivers/cell/ppu/cell_texture.h

@@ -67,6 +67,9 @@ cell_texture_create(struct pipe_context *pipe,
 extern void
 cell_texture_release(struct pipe_context *pipe, struct pipe_texture **pt);
 
+extern void
+cell_texture_update(struct pipe_context *pipe, struct pipe_texture *texture);
+
 extern struct pipe_surface *
 cell_get_tex_surface(struct pipe_context *pipe,
                      struct pipe_texture *pt,

src/gallium/drivers/failover/fo_context.c

@@ -137,15 +137,14 @@ struct pipe_context *failover_create( struct pipe_context *hw,
 
    failover_init_state_functions( failover );
 
-#if 0
-   failover->pipe.surface_alloc = hw->surface_alloc;
-#endif
-   failover->pipe.get_tex_surface = hw->get_tex_surface;
-
    failover->pipe.surface_copy = hw->surface_copy;
    failover->pipe.surface_fill = hw->surface_fill;
+
    failover->pipe.texture_create = hw->texture_create;
    failover->pipe.texture_release = hw->texture_release;
+   failover->pipe.texture_update = hw->texture_update;
+   failover->pipe.get_tex_surface = hw->get_tex_surface;
+
    failover->pipe.flush = hw->flush;
 
    failover->dirty = 0;

src/gallium/drivers/i915simple/i915_context.c

@@ -302,6 +302,7 @@ struct pipe_context *i915_create( struct pipe_winsys *pipe_winsys,
 
    i915->pipe.texture_create = i915_texture_create;
    i915->pipe.texture_release = i915_texture_release;
+   i915->pipe.texture_update = i915_texture_update;
 
    i915->dirty = ~0;
    i915->hardware_dirty = ~0;

src/gallium/drivers/i915simple/i915_texture.c

@@ -534,3 +534,10 @@ i915_texture_release(struct pipe_context *pipe, struct pipe_texture **pt)
    }
    *pt = NULL;
 }
+
+
+void
+i915_texture_update(struct pipe_context *pipe, struct pipe_texture *texture)
+{
+   /* no-op? */
+}

src/gallium/drivers/i915simple/i915_texture.h

@@ -14,4 +14,8 @@ extern void
 i915_texture_release(struct pipe_context *pipe, struct pipe_texture **pt);
 
 
+extern void
+i915_texture_update(struct pipe_context *pipe, struct pipe_texture *texture);
+
+
 #endif /* I915_TEXTURE_H */

src/gallium/drivers/i965simple/brw_context.c

@@ -224,6 +224,7 @@ struct pipe_context *brw_create(struct pipe_winsys *pipe_winsys,
    brw->pipe.clear = brw_clear;
    brw->pipe.texture_create  = brw_texture_create;
    brw->pipe.texture_release = brw_texture_release;
+   brw->pipe.texture_update = brw_texture_update;
 
    brw_init_surface_functions(brw);
    brw_init_state_functions(brw);

src/gallium/drivers/i965simple/brw_tex_layout.c

@@ -351,3 +351,11 @@ brw_texture_release(struct pipe_context *pipe, struct pipe_texture **pt)
    }
    *pt = NULL;
 }
+
+
+void
+brw_texture_update(struct pipe_context *pipe, struct pipe_texture *texture)
+{
+   /* no-op? */
+}
+

src/gallium/drivers/i965simple/brw_tex_layout.h

@@ -12,4 +12,7 @@ brw_texture_create(struct pipe_context *pipe, const struct pipe_texture *templat
 extern void
 brw_texture_release(struct pipe_context *pipe, struct pipe_texture **pt);
 
+extern void
+brw_texture_update(struct pipe_context *pipe, struct pipe_texture *texture);
+
 #endif

src/gallium/drivers/softpipe/sp_context.c

@@ -283,6 +283,7 @@ struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
    /* textures */
    softpipe->pipe.texture_create = softpipe_texture_create;
    softpipe->pipe.texture_release = softpipe_texture_release;
+   softpipe->pipe.texture_update = softpipe_texture_update;
    softpipe->pipe.get_tex_surface = softpipe_get_tex_surface;
 
    /*

src/gallium/drivers/softpipe/sp_texture.c

@@ -39,6 +39,7 @@
 #include "sp_context.h"
 #include "sp_state.h"
 #include "sp_texture.h"
+#include "sp_tile_cache.h"
 
 
 /* Simple, maximally packed layout.
@@ -128,6 +129,20 @@ softpipe_texture_release(struct pipe_context *pipe, struct pipe_texture **pt)
 }
 
 
+void
+softpipe_texture_update(struct pipe_context *pipe,
+                        struct pipe_texture *texture)
+{
+   struct softpipe_context *softpipe = softpipe_context(pipe);
+   uint unit;
+   for (unit = 0; unit < PIPE_MAX_SAMPLERS; unit++) {
+      if (softpipe->texture[unit] == texture) {
+         sp_flush_tile_cache(softpipe, softpipe->tex_cache[unit]);
+      }
+   }
+}
+
+
 /**
  * Called via pipe->get_tex_surface()
  */

src/gallium/drivers/softpipe/sp_texture.h

@@ -62,6 +62,10 @@ softpipe_texture_create(struct pipe_context *pipe,
 extern void
 softpipe_texture_release(struct pipe_context *pipe, struct pipe_texture **pt);
 
+extern void
+softpipe_texture_update(struct pipe_context *pipe,
+                        struct pipe_texture *texture);
+
 extern struct pipe_surface *
 softpipe_get_tex_surface(struct pipe_context *pipe,
                          struct pipe_texture *pt,

src/gallium/drivers/softpipe/sp_tile_cache.c

@@ -359,30 +359,37 @@ sp_flush_tile_cache(struct softpipe_context *softpipe,
    struct pipe_surface *ps = tc->surface;
    int inuse = 0, pos;
 
-   if (!ps || !ps->buffer)
+   if (ps && ps->buffer) {
-      return;
+      /* caching a drawing surface */
-
+      for (pos = 0; pos < NUM_ENTRIES; pos++) {
-   for (pos = 0; pos < NUM_ENTRIES; pos++) {
+         struct softpipe_cached_tile *tile = tc->entries + pos;
-      struct softpipe_cached_tile *tile = tc->entries + pos;
+         if (tile->x >= 0) {
-      if (tile->x >= 0) {
+            if (tc->depth_stencil) {
-         if (tc->depth_stencil) {
+               pipe_put_tile_raw(pipe, ps,
-            pipe_put_tile_raw(pipe, ps,
+                              tile->x, tile->y, TILE_SIZE, TILE_SIZE,
-                           tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+                              tile->data.depth32, 0/*STRIDE*/);
-                           tile->data.depth32, 0/*STRIDE*/);
+            }
+            else {
+               pipe_put_tile_rgba(pipe, ps,
+                                  tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+                                  (float *) tile->data.color);
+            }
+            tile->x = tile->y = -1;  /* mark as empty */
+            inuse++;
          }
-         else {
-            pipe_put_tile_rgba(pipe, ps,
-                               tile->x, tile->y, TILE_SIZE, TILE_SIZE,
-                               (float *) tile->data.color);
-         }
-         tile->x = tile->y = -1;  /* mark as empty */
-         inuse++;
       }
-   }
 
 #if TILE_CLEAR_OPTIMIZATION
-   sp_tile_cache_flush_clear(&softpipe->pipe, tc);
+      sp_tile_cache_flush_clear(&softpipe->pipe, tc);
 #endif
+   }
+   else if (tc->texture) {
+      /* caching a texture, mark all entries as embpy */
+      for (pos = 0; pos < NUM_ENTRIES; pos++) {
+         tc->entries[pos].x = -1;
+      }
+      tc->tex_face = -1;
+   }
 
 #if 0
    debug_printf("flushed tiles in use: %d\n", inuse);

src/gallium/include/pipe/p_context.h

@@ -206,6 +206,14 @@ struct pipe_context {
    void (*texture_release)(struct pipe_context *pipe,
 			   struct pipe_texture **pt);
 
+   /**
+    * Called when texture data is changed.
+    * Note: we could pass some hints about which mip levels or cube faces
+    * have changed...
+    */
+   void (*texture_update)(struct pipe_context *pipe,
+                          struct pipe_texture *texture);
+
    /** Get a surface which is a "view" into a texture */
    struct pipe_surface *(*get_tex_surface)(struct pipe_context *pipe,
                                            struct pipe_texture *texture,

src/mesa/state_tracker/st_atom_texture.c

@@ -67,14 +67,20 @@ update_textures(struct st_context *st)
        * this table before being deleted, otherwise the pointer
        * comparison below could fail.
        */
-      if (st->state.sampler_texture[unit] != stObj ||
+      if (st->state.sampler_texture[unit] != stObj) {
-          (stObj && stObj->dirtyData)) {
          struct pipe_texture *pt = st_get_stobj_texture(stObj);
          st->state.sampler_texture[unit] = stObj;
          st->pipe->set_sampler_texture(st->pipe, unit, pt);
-         if (stObj)
-            stObj->dirtyData = GL_FALSE;
       }
+
+      stObj = st->state.sampler_texture[unit];
+
+      if (stObj && stObj->dirtyData) {
+         struct pipe_texture *pt = st_get_stobj_texture(stObj);
+         st->pipe->texture_update(st->pipe, pt);
+         stObj->dirtyData = GL_FALSE;
+      }
+
    }
 }