Mesa (master): mesa: fix some potential state-restore issues in pop_texture_group()

[Brian Paul]

Module: Mesa
Branch: master
Commit: aac19609bfd7c950b2577489b06886c8a8097bb2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=aac19609bfd7c950b2577489b06886c8a8097bb2

Author: Brian Paul <brianp at vmware.com>
Date:   Thu May 21 10:05:04 2009 -0600

mesa: fix some potential state-restore issues in pop_texture_group()

Call the _mesa_set_enable() functions instead of driver functions, etc.

Also, add missing code for 1D/2D texture arrays.

---

 src/mesa/main/attrib.c |   90 ++++++++++++++++++++++++------------------------
 1 files changed, 45 insertions(+), 45 deletions(-)

diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index e43fa96..a609199 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -1,6 +1,6 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.3
+ * Version:  7.6
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  * Copyright (C) 2009  VMware, Inc.   All Rights Reserved.
@@ -541,6 +541,7 @@ end:
 static void
 pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 {
+   const GLuint curTexUnitSave = ctx->Texture.CurrentUnit;
    GLuint i;
 
 #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM)		\
@@ -685,59 +686,51 @@ pop_enable_group(GLcontext *ctx, const struct gl_enable_attrib *enable)
 
    /* texture unit enables */
    for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
-      if (ctx->Texture.Unit[i].Enabled != enable->Texture[i]) {
-         ctx->Texture.Unit[i].Enabled = enable->Texture[i];
-         if (ctx->Driver.Enable) {
-            if (ctx->Driver.ActiveTexture) {
-               (*ctx->Driver.ActiveTexture)(ctx, i);
-            }
-            (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D,
-                             (GLboolean) (enable->Texture[i] & TEXTURE_1D_BIT) );
-            (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D,
-                             (GLboolean) (enable->Texture[i] & TEXTURE_2D_BIT) );
-            (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D,
-                             (GLboolean) (enable->Texture[i] & TEXTURE_3D_BIT) );
-            if (ctx->Extensions.ARB_texture_cube_map)
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_CUBE_MAP_ARB,
-                          (GLboolean) (enable->Texture[i] & TEXTURE_CUBE_BIT) );
-            if (ctx->Extensions.NV_texture_rectangle)
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_RECTANGLE_NV,
-                          (GLboolean) (enable->Texture[i] & TEXTURE_RECT_BIT) );
+      const GLbitfield enabled = enable->Texture[i];
+      const GLbitfield genEnabled = enable->TexGen[i];
+
+      if (ctx->Texture.Unit[i].Enabled != enabled) {
+         _mesa_ActiveTextureARB(GL_TEXTURE0 + i);
+
+         _mesa_set_enable(ctx, GL_TEXTURE_1D,
+                          (enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE);
+         _mesa_set_enable(ctx, GL_TEXTURE_2D,
+                          (enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE);
+         _mesa_set_enable(ctx, GL_TEXTURE_3D,
+                          (enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE);
+         if (ctx->Extensions.NV_texture_rectangle) {
+            _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_ARB,
+                             (enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE);
+         }
+         if (ctx->Extensions.ARB_texture_cube_map) {
+            _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP,
+                             (enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE);
+         }
+         if (ctx->Extensions.MESA_texture_array) {
+            _mesa_set_enable(ctx, GL_TEXTURE_1D_ARRAY_EXT,
+                           (enabled & TEXTURE_1D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+            _mesa_set_enable(ctx, GL_TEXTURE_2D_ARRAY_EXT,
+                           (enabled & TEXTURE_2D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
          }
       }
 
-      if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
-         ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
-         if (ctx->Driver.Enable) {
-            if (ctx->Driver.ActiveTexture) {
-               (*ctx->Driver.ActiveTexture)(ctx, i);
-            }
-            if (enable->TexGen[i] & S_BIT)
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
-            else
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
-            if (enable->TexGen[i] & T_BIT)
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
-            else
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
-            if (enable->TexGen[i] & R_BIT)
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
-            else
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
-            if (enable->TexGen[i] & Q_BIT)
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
-            else
-               (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
-         }
+      if (ctx->Texture.Unit[i].TexGenEnabled != genEnabled) {
+         _mesa_ActiveTextureARB(GL_TEXTURE0 + i);
+         _mesa_set_enable(ctx, GL_TEXTURE_GEN_S,
+                          (genEnabled & S_BIT) ? GL_TRUE : GL_FALSE);
+         _mesa_set_enable(ctx, GL_TEXTURE_GEN_T,
+                          (genEnabled & T_BIT) ? GL_TRUE : GL_FALSE);
+         _mesa_set_enable(ctx, GL_TEXTURE_GEN_R,
+                          (genEnabled & R_BIT) ? GL_TRUE : GL_FALSE);
+         _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q,
+                          (genEnabled & Q_BIT) ? GL_TRUE : GL_FALSE);
       }
 
       /* GL_SGI_texture_color_table */
       ctx->Texture.Unit[i].ColorTableEnabled = enable->TextureColorTable[i];
    }
 
-   if (ctx->Driver.ActiveTexture) {
-      (*ctx->Driver.ActiveTexture)(ctx, ctx->Texture.CurrentUnit);
-   }
+   _mesa_ActiveTextureARB(GL_TEXTURE0 + curTexUnitSave);
 }
 
 
@@ -770,6 +763,13 @@ pop_texture_group(GLcontext *ctx, struct texture_state *texstate)
          _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV,
                      (unit->Enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE);
       }
+      if (ctx->Extensions.MESA_texture_array) {
+         _mesa_set_enable(ctx, GL_TEXTURE_1D_ARRAY_EXT,
+                 (unit->Enabled & TEXTURE_1D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+         _mesa_set_enable(ctx, GL_TEXTURE_2D_ARRAY_EXT,
+                 (unit->Enabled & TEXTURE_2D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+      }
+
       if (ctx->Extensions.SGI_texture_color_table) {
          _mesa_set_enable(ctx, GL_TEXTURE_COLOR_TABLE_SGI,
                           unit->ColorTableEnabled);