From 5465f3adf93bd58b528bd6703b2367eb00c78c31 Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@vmware.com>
Date: Fri, 20 Mar 2009 15:45:00 +0100
Subject: stw: Use u_handle_table to maintain context list.

---
 .../state_trackers/wgl/shared/stw_context.c        | 24 ++++++++--------------
 src/gallium/state_trackers/wgl/shared/stw_device.c | 19 +++++++++++------
 src/gallium/state_trackers/wgl/shared/stw_device.h |  8 ++------
 3 files changed, 23 insertions(+), 28 deletions(-)

diff --git a/src/gallium/state_trackers/wgl/shared/stw_context.c b/src/gallium/state_trackers/wgl/shared/stw_context.c
index 69f25d6187..31cb025ac5 100644
--- a/src/gallium/state_trackers/wgl/shared/stw_context.c
+++ b/src/gallium/state_trackers/wgl/shared/stw_context.c
@@ -135,17 +135,7 @@ stw_create_layer_context(
 
    pipe_mutex_lock( stw_dev->mutex );
    {
-      UINT_PTR i;
-
-      for (i = 0; i < STW_CONTEXT_MAX; i++) {
-         if (stw_dev->ctx_array[i].ctx == NULL) {
-            /* success:
-             */
-            stw_dev->ctx_array[i].ctx = ctx;
-            hglrc = i + 1;
-            break;
-         }
-      }
+      hglrc = handle_table_add(stw_dev->ctx_table, ctx);
    }
    pipe_mutex_unlock( stw_dev->mutex );
 
@@ -195,12 +185,14 @@ stw_delete_context(
       if (WindowFromDC( ctx->hdc ) != NULL)
          ReleaseDC( WindowFromDC( ctx->hdc ), ctx->hdc );
 
-      st_destroy_context( ctx->st );
+      pipe_mutex_lock(stw_dev->mutex);
+      {
+         st_destroy_context(ctx->st);
+         FREE(ctx);
+         handle_table_remove(stw_dev->ctx_table, hglrc);
+      }
+      pipe_mutex_unlock(stw_dev->mutex);
 
-      FREE( ctx );
-      
-      stw_dev->ctx_array[hglrc - 1].ctx = NULL;
-      
       ret = TRUE;
    }
 
diff --git a/src/gallium/state_trackers/wgl/shared/stw_device.c b/src/gallium/state_trackers/wgl/shared/stw_device.c
index 4bec036fe3..3c1eb1ad39 100644
--- a/src/gallium/state_trackers/wgl/shared/stw_device.c
+++ b/src/gallium/state_trackers/wgl/shared/stw_device.c
@@ -94,6 +94,11 @@ st_init(const struct stw_winsys *stw_winsys)
    
    pipe_mutex_init( stw_dev->mutex );
 
+   stw_dev->ctx_table = handle_table_create();
+   if (!stw_dev->ctx_table) {
+      goto error1;
+   }
+
    pixelformat_init();
 
    return TRUE;
@@ -135,9 +140,12 @@ st_cleanup(void)
    pipe_mutex_lock( stw_dev->mutex );
    {
       /* Ensure all contexts are destroyed */
-      for (i = 0; i < STW_CONTEXT_MAX; i++)
-         if (stw_dev->ctx_array[i].ctx) 
-            stw_delete_context( i + 1 );
+      i = handle_table_get_first_handle(stw_dev->ctx_table);
+      while (i) {
+         stw_delete_context(i);
+         i = handle_table_get_next_handle(stw_dev->ctx_table, i);
+      }
+      handle_table_destroy(stw_dev->ctx_table);
    }
    pipe_mutex_unlock( stw_dev->mutex );
 
@@ -163,13 +171,12 @@ st_cleanup(void)
 struct stw_context *
 stw_lookup_context( UINT_PTR dhglrc )
 {
-   if (dhglrc == 0 || 
-       dhglrc >= STW_CONTEXT_MAX)
+   if (dhglrc == 0)
       return NULL;
 
    if (stw_dev == NULL)
       return NULL;
 
-   return stw_dev->ctx_array[dhglrc - 1].ctx;
+   return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
 }
 
diff --git a/src/gallium/state_trackers/wgl/shared/stw_device.h b/src/gallium/state_trackers/wgl/shared/stw_device.h
index 80da14b84f..6a9cee0d02 100644
--- a/src/gallium/state_trackers/wgl/shared/stw_device.h
+++ b/src/gallium/state_trackers/wgl/shared/stw_device.h
@@ -31,9 +31,7 @@
 
 #include "pipe/p_compiler.h"
 #include "pipe/p_thread.h"
-
-
-#define STW_CONTEXT_MAX 32
+#include "util/u_handle_table.h"
 
 
 struct pipe_screen;
@@ -45,9 +43,7 @@ struct stw_device
    
    pipe_mutex mutex;
 
-   struct {
-      struct stw_context *ctx;
-   } ctx_array[STW_CONTEXT_MAX];
+   struct handle_table *ctx_table;
    
 #ifdef DEBUG
    unsigned long memdbg_no;
-- 
cgit v1.2.3