From d5640a2dbdc4454d0405f2cd5b18fc49b1ca7694 Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Wed, 20 Feb 2008 13:24:52 -0700
Subject: gallium: new pipe->texture_update() function

Called whenever texture data is changed (glTexImage, glTexSubImage,
glCopyTexSubImage, etc).
---
 src/gallium/drivers/softpipe/sp_context.c    |  1 +
 src/gallium/drivers/softpipe/sp_texture.c    | 15 ++++++++++
 src/gallium/drivers/softpipe/sp_texture.h    |  4 +++
 src/gallium/drivers/softpipe/sp_tile_cache.c | 45 ++++++++++++++++------------
 4 files changed, 46 insertions(+), 19 deletions(-)

(limited to 'src/gallium/drivers/softpipe')

diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index 254c6adca4..316020cba6 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/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;
 
    /*
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 6de7a9b543..8f31f05e47 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/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()
  */
diff --git a/src/gallium/drivers/softpipe/sp_texture.h b/src/gallium/drivers/softpipe/sp_texture.h
index fa646c0de9..50fc100427 100644
--- a/src/gallium/drivers/softpipe/sp_texture.h
+++ b/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,
diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.c b/src/gallium/drivers/softpipe/sp_tile_cache.c
index 9ed3c5072d..da30dd6c48 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.c
+++ b/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)
-      return;
-
-   for (pos = 0; pos < NUM_ENTRIES; pos++) {
-      struct softpipe_cached_tile *tile = tc->entries + pos;
-      if (tile->x >= 0) {
-         if (tc->depth_stencil) {
-            pipe_put_tile_raw(pipe, ps,
-                           tile->x, tile->y, TILE_SIZE, TILE_SIZE,
-                           tile->data.depth32, 0/*STRIDE*/);
-         }
-         else {
-            pipe_put_tile_rgba(pipe, ps,
-                               tile->x, tile->y, TILE_SIZE, TILE_SIZE,
-                               (float *) tile->data.color);
+   if (ps && ps->buffer) {
+      /* caching a drawing surface */
+      for (pos = 0; pos < NUM_ENTRIES; pos++) {
+         struct softpipe_cached_tile *tile = tc->entries + pos;
+         if (tile->x >= 0) {
+            if (tc->depth_stencil) {
+               pipe_put_tile_raw(pipe, ps,
+                              tile->x, tile->y, TILE_SIZE, TILE_SIZE,
+                              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++;
          }
-         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);
-- 
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