Mesa (7.10): mesa/meta: fix broken assertion, rename stack depth var

[Haihao Xiang]

Module: Mesa
Branch: 7.10
Commit: 604009fa77ec00d1366a97edaaece22f3a7b04e2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=604009fa77ec00d1366a97edaaece22f3a7b04e2

Author: Brian Paul <brianp at vmware.com>
Date:   Fri Dec 10 10:02:33 2010 -0700

mesa/meta: fix broken assertion, rename stack depth var

assert(current_save_state < MAX_META_OPS_DEPTH) did not compile.

Rename current_save_state to SaveStackDepth to be more consistent with
the style of the other fields.
(cherry picked from commit 2a4df8933eaeb0bd0d6e63fee3d23a47c4b3adb7)

---

 src/mesa/drivers/common/meta.c |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index cbc0512..cdb2500 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -272,8 +272,10 @@ struct gen_mipmap_state
  */
 struct gl_meta_state
 {
-   struct save_state Save[MAX_META_OPS_DEPTH];    /**< state saved during meta-ops */
-   int current_save_state; 
+   /** Stack of state saved during meta-ops */
+   struct save_state Save[MAX_META_OPS_DEPTH];
+   /** Save stack depth */
+   GLuint SaveStackDepth;
 
    struct temp_texture TempTex;
 
@@ -328,9 +330,9 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
    struct save_state *save;
 
    /* hope MAX_META_OPS_DEPTH is large enough */
-   assert(current_save_state < MAX_META_OPS_DEPTH);
+   assert(ctx->Meta->SaveStackDepth < MAX_META_OPS_DEPTH);
 
-   save = &ctx->Meta->Save[ctx->Meta->current_save_state++];
+   save = &ctx->Meta->Save[ctx->Meta->SaveStackDepth++];
    memset(save, 0, sizeof(*save));
    save->SavedState = state;
 
@@ -581,7 +583,7 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
 static void
 _mesa_meta_end(struct gl_context *ctx)
 {
-   struct save_state *save = &ctx->Meta->Save[--ctx->Meta->current_save_state];
+   struct save_state *save = &ctx->Meta->Save[--ctx->Meta->SaveStackDepth];
    const GLbitfield state = save->SavedState;
 
    if (state & META_ALPHA_TEST) {