mesa: use an array for current texture objects

Use loops to consolidate lots of texture object code.

8 files changed, 137 insertions, 238 deletions

diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index dc33eb1fac2..996033a2d87 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -365,7 +365,7 @@ _mesa_PushAttrib(GLbitfield mask)
 
    if (mask & GL_TEXTURE_BIT) {
       struct texture_state *texstate = CALLOC_STRUCT(texture_state);
-      GLuint u;
+      GLuint u, tex;
 
       if (!texstate) {
          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glPushAttrib(GL_TEXTURE_BIT)");
@@ -381,38 +381,18 @@ _mesa_PushAttrib(GLbitfield mask)
        * accidentally get deleted while referenced in the attribute stack.
        */
       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_1D_INDEX],
-                                ctx->Texture.Unit[u].Current1D);
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_2D_INDEX],
-                                ctx->Texture.Unit[u].Current2D);
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_3D_INDEX],
-                                ctx->Texture.Unit[u].Current3D);
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_CUBE_INDEX],
-                                ctx->Texture.Unit[u].CurrentCubeMap);
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_RECT_INDEX],
-                                ctx->Texture.Unit[u].CurrentRect);
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_1D_ARRAY_INDEX],
-                                ctx->Texture.Unit[u].Current1DArray);
-         _mesa_reference_texobj(&texstate->SavedTexRef[u][TEXTURE_2D_ARRAY_INDEX],
-                                ctx->Texture.Unit[u].Current2DArray);
+         for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+            _mesa_reference_texobj(&texstate->SavedTexRef[u][tex],
+                                   ctx->Texture.Unit[u].CurrentTex[tex]);
+         }
       }
 
       /* copy state/contents of the currently bound texture objects */
       for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_1D_INDEX],
-                                   ctx->Texture.Unit[u].Current1D);
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_2D_INDEX],
-                                   ctx->Texture.Unit[u].Current2D);
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_3D_INDEX],
-                                   ctx->Texture.Unit[u].Current3D);
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_CUBE_INDEX],
-                                   ctx->Texture.Unit[u].CurrentCubeMap);
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_RECT_INDEX],
-                                   ctx->Texture.Unit[u].CurrentRect);
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_1D_ARRAY_INDEX],
-                                   ctx->Texture.Unit[u].Current1DArray);
-         _mesa_copy_texture_object(&texstate->SavedObj[u][TEXTURE_2D_ARRAY_INDEX],
-                                   ctx->Texture.Unit[u].Current2DArray);
+         for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+            _mesa_copy_texture_object(&texstate->SavedObj[u][tex],
+                                      ctx->Texture.Unit[u].CurrentTex[tex]);
+         }
       }
 
       _mesa_unlock_context_textures(ctx);
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 87a821b12dc..3a8d56140f5 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -884,21 +884,21 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          params[0] = _mesa_IsEnabled(GL_TEXTURE_2D_ARRAY_EXT);
          break;
       case GL_TEXTURE_BINDING_1D:
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1D->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_2D:
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2D->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_3D:
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current3D->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_3D_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
          CHECK_EXT1(MESA_texture_array, "GetBooleanv");
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1DArray->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_ARRAY_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
          CHECK_EXT1(MESA_texture_array, "GetBooleanv");
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_ARRAY_INDEX]->Name);
          break;
       case GL_TEXTURE_GEN_S:
          params[0] = ((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0);
@@ -1071,7 +1071,7 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          break;
       case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
          CHECK_EXT1(ARB_texture_cube_map, "GetBooleanv");
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_CUBE_INDEX]->Name);
          break;
       case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
          CHECK_EXT1(ARB_texture_cube_map, "GetBooleanv");
@@ -1558,7 +1558,7 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          break;
       case GL_TEXTURE_BINDING_RECTANGLE_NV:
          CHECK_EXT1(NV_texture_rectangle, "GetBooleanv");
-         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentRect->Name);
+         params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_RECT_INDEX]->Name);
          break;
       case GL_MAX_RECTANGLE_TEXTURE_SIZE_NV:
          CHECK_EXT1(NV_texture_rectangle, "GetBooleanv");
@@ -2710,21 +2710,21 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          params[0] = BOOLEAN_TO_FLOAT(_mesa_IsEnabled(GL_TEXTURE_2D_ARRAY_EXT));
          break;
       case GL_TEXTURE_BINDING_1D:
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1D->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_2D:
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2D->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_3D:
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current3D->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_3D_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
          CHECK_EXT1(MESA_texture_array, "GetFloatv");
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1DArray->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_ARRAY_INDEX]->Name);
          break;
       case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
          CHECK_EXT1(MESA_texture_array, "GetFloatv");
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_ARRAY_INDEX]->Name);
          break;
       case GL_TEXTURE_GEN_S:
          params[0] = BOOLEAN_TO_FLOAT(((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0));
@@ -2897,7 +2897,7 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          break;
       case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
          CHECK_EXT1(ARB_texture_cube_map, "GetFloatv");
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_CUBE_INDEX]->Name);
          break;
       case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
          CHECK_EXT1(ARB_texture_cube_map, "GetFloatv");
@@ -3384,7 +3384,7 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          break;
       case GL_TEXTURE_BINDING_RECTANGLE_NV:
          CHECK_EXT1(NV_texture_rectangle, "GetFloatv");
-         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentRect->Name);
+         params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_RECT_INDEX]->Name);
          break;
       case GL_MAX_RECTANGLE_TEXTURE_SIZE_NV:
          CHECK_EXT1(NV_texture_rectangle, "GetFloatv");
@@ -4536,21 +4536,21 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          params[0] = BOOLEAN_TO_INT(_mesa_IsEnabled(GL_TEXTURE_2D_ARRAY_EXT));
          break;
       case GL_TEXTURE_BINDING_1D:
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1D->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_INDEX]->Name;
          break;
       case GL_TEXTURE_BINDING_2D:
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2D->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_INDEX]->Name;
          break;
       case GL_TEXTURE_BINDING_3D:
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current3D->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_3D_INDEX]->Name;
          break;
       case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
          CHECK_EXT1(MESA_texture_array, "GetIntegerv");
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1DArray->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_ARRAY_INDEX]->Name;
          break;
       case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
          CHECK_EXT1(MESA_texture_array, "GetIntegerv");
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_ARRAY_INDEX]->Name;
          break;
       case GL_TEXTURE_GEN_S:
          params[0] = BOOLEAN_TO_INT(((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0));
@@ -4723,7 +4723,7 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          break;
       case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
          CHECK_EXT1(ARB_texture_cube_map, "GetIntegerv");
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_CUBE_INDEX]->Name;
          break;
       case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
          CHECK_EXT1(ARB_texture_cube_map, "GetIntegerv");
@@ -5210,7 +5210,7 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          break;
       case GL_TEXTURE_BINDING_RECTANGLE_NV:
          CHECK_EXT1(NV_texture_rectangle, "GetIntegerv");
-         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentRect->Name;
+         params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_RECT_INDEX]->Name;
          break;
       case GL_MAX_RECTANGLE_TEXTURE_SIZE_NV:
          CHECK_EXT1(NV_texture_rectangle, "GetIntegerv");
diff --git a/src/mesa/main/get_gen.py b/src/mesa/main/get_gen.py
index 3b2496c663e..729f382b4b1 100644
--- a/src/mesa/main/get_gen.py
+++ b/src/mesa/main/get_gen.py
@@ -432,15 +432,15 @@ StateVars = [
 	( "GL_TEXTURE_1D_ARRAY_EXT", GLboolean, ["_mesa_IsEnabled(GL_TEXTURE_1D_ARRAY_EXT)"], "", ["MESA_texture_array"] ),
 	( "GL_TEXTURE_2D_ARRAY_EXT", GLboolean, ["_mesa_IsEnabled(GL_TEXTURE_2D_ARRAY_EXT)"], "", ["MESA_texture_array"] ),
 	( "GL_TEXTURE_BINDING_1D", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1D->Name"], "", None ),
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_INDEX]->Name"], "", None ),
 	( "GL_TEXTURE_BINDING_2D", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2D->Name"], "", None ),
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_INDEX]->Name"], "", None ),
 	( "GL_TEXTURE_BINDING_3D", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current3D->Name"], "", None ),
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_3D_INDEX]->Name"], "", None ),
 	( "GL_TEXTURE_BINDING_1D_ARRAY_EXT", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1DArray->Name"], "", ["MESA_texture_array"] ),
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_1D_ARRAY_INDEX]->Name"], "", ["MESA_texture_array"] ),
 	( "GL_TEXTURE_BINDING_2D_ARRAY_EXT", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name"], "", ["MESA_texture_array"] ),
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_2D_ARRAY_INDEX]->Name"], "", ["MESA_texture_array"] ),
 	( "GL_TEXTURE_GEN_S", GLboolean,
 	  ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0)"], "", None ),
 	( "GL_TEXTURE_GEN_T", GLboolean,
@@ -515,7 +515,7 @@ StateVars = [
 	( "GL_TEXTURE_CUBE_MAP_ARB", GLboolean,
 	  ["_mesa_IsEnabled(GL_TEXTURE_CUBE_MAP_ARB)"], "", ["ARB_texture_cube_map"] ),
 	( "GL_TEXTURE_BINDING_CUBE_MAP_ARB", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentCubeMap->Name"],
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_CUBE_INDEX]->Name"],
 	  "", ["ARB_texture_cube_map"] ),
 	( "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB", GLint,
 	  ["(1 << (ctx->Const.MaxCubeTextureLevels - 1))"],
@@ -795,7 +795,7 @@ StateVars = [
 	( "GL_TEXTURE_RECTANGLE_NV", GLboolean,
 	  ["_mesa_IsEnabled(GL_TEXTURE_RECTANGLE_NV)"], "", ["NV_texture_rectangle"] ),
 	( "GL_TEXTURE_BINDING_RECTANGLE_NV", GLint,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentRect->Name"],
+	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].CurrentTex[TEXTURE_RECT_INDEX]->Name"],
 	  "", ["NV_texture_rectangle"] ),
 	( "GL_MAX_RECTANGLE_TEXTURE_SIZE_NV", GLint,
 	  ["ctx->Const.MaxTextureRectSize"], "", ["NV_texture_rectangle"] ),
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index bd7d6f07849..06cef3d670f 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1543,15 +1543,11 @@ struct gl_texture_unit
     */
    struct gl_tex_env_combine_state *_CurrentCombine;
 
-   struct gl_texture_object *Current1D;
-   struct gl_texture_object *Current2D;
-   struct gl_texture_object *Current3D;
-   struct gl_texture_object *CurrentCubeMap; /**< GL_ARB_texture_cube_map */
-   struct gl_texture_object *CurrentRect;    /**< GL_NV_texture_rectangle */
-   struct gl_texture_object *Current1DArray; /**< GL_MESA_texture_array */
-   struct gl_texture_object *Current2DArray; /**< GL_MESA_texture_array */
-
-   struct gl_texture_object *_Current; /**< Points to really enabled tex obj */
+   /** Current texture object pointers */
+   struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS];
+
+   /** Points to highest priority, complete and enabled texture object */
+   struct gl_texture_object *_Current;
 
    /** GL_SGI_texture_color_table */
    /*@{*/
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 8fd69c4f6ac..e3d44047598 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -766,15 +766,15 @@ _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
 {
    switch (target) {
       case GL_TEXTURE_1D:
-         return texUnit->Current1D;
+         return texUnit->CurrentTex[TEXTURE_1D_INDEX];
       case GL_PROXY_TEXTURE_1D:
          return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
       case GL_TEXTURE_2D:
-         return texUnit->Current2D;
+         return texUnit->CurrentTex[TEXTURE_2D_INDEX];
       case GL_PROXY_TEXTURE_2D:
          return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
       case GL_TEXTURE_3D:
-         return texUnit->Current3D;
+         return texUnit->CurrentTex[TEXTURE_3D_INDEX];
       case GL_PROXY_TEXTURE_3D:
          return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
       case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
@@ -785,25 +785,25 @@ _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
       case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
       case GL_TEXTURE_CUBE_MAP_ARB:
          return ctx->Extensions.ARB_texture_cube_map
-                ? texUnit->CurrentCubeMap : NULL;
+                ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
       case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
          return ctx->Extensions.ARB_texture_cube_map
                 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
       case GL_TEXTURE_RECTANGLE_NV:
          return ctx->Extensions.NV_texture_rectangle
-                ? texUnit->CurrentRect : NULL;
+                ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
       case GL_PROXY_TEXTURE_RECTANGLE_NV:
          return ctx->Extensions.NV_texture_rectangle
                 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
       case GL_TEXTURE_1D_ARRAY_EXT:
          return ctx->Extensions.MESA_texture_array
-                ? texUnit->Current1DArray : NULL;
+                ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
       case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
          return ctx->Extensions.MESA_texture_array
                 ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
       case GL_TEXTURE_2D_ARRAY_EXT:
          return ctx->Extensions.MESA_texture_array
-                ? texUnit->Current2DArray : NULL;
+                ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
       case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
          return ctx->Extensions.MESA_texture_array
                 ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index 52a651c4b69..2de2dcc95da 100644
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -759,44 +759,17 @@ unbind_texobj_from_fbo(GLcontext *ctx, struct gl_texture_object *texObj)
 static void
 unbind_texobj_from_texunits(GLcontext *ctx, struct gl_texture_object *texObj)
 {
-   GLuint u;
+   GLuint u, tex;
 
    for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) {
       struct gl_texture_unit *unit = &ctx->Texture.Unit[u];
-      if (texObj == unit->Current1D) {
-         _mesa_reference_texobj(&unit->Current1D,
-                                ctx->Shared->DefaultTex[TEXTURE_1D_INDEX]);
-         ASSERT(unit->Current1D);
-      }
-      else if (texObj == unit->Current2D) {
-         _mesa_reference_texobj(&unit->Current2D,
-                                ctx->Shared->DefaultTex[TEXTURE_2D_INDEX]);
-         ASSERT(unit->Current2D);
-      }
-      else if (texObj == unit->Current3D) {
-         _mesa_reference_texobj(&unit->Current3D,
-                                ctx->Shared->DefaultTex[TEXTURE_3D_INDEX]);
-         ASSERT(unit->Current3D);
-      }
-      else if (texObj == unit->CurrentCubeMap) {
-         _mesa_reference_texobj(&unit->CurrentCubeMap,
-                                ctx->Shared->DefaultTex[TEXTURE_CUBE_INDEX]);
-         ASSERT(unit->CurrentCubeMap);
-      }
-      else if (texObj == unit->CurrentRect) {
-         _mesa_reference_texobj(&unit->CurrentRect,
-                                ctx->Shared->DefaultTex[TEXTURE_RECT_INDEX]);
-         ASSERT(unit->CurrentRect);
-      }
-      else if (texObj == unit->Current1DArray) {
-         _mesa_reference_texobj(&unit->Current1DArray,
-                             ctx->Shared->DefaultTex[TEXTURE_1D_ARRAY_INDEX]);
-         ASSERT(unit->Current1DArray);
-      }
-      else if (texObj == unit->Current2DArray) {
-         _mesa_reference_texobj(&unit->Current2DArray,
-                             ctx->Shared->DefaultTex[TEXTURE_2D_ARRAY_INDEX]);
-         ASSERT(unit->Current2DArray);
+      for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+         if (texObj == unit->CurrentTex[tex]) {
+            _mesa_reference_texobj(&unit->CurrentTex[tex],
+                                   ctx->Shared->DefaultTex[TEXTURE_1D_INDEX]);
+            ASSERT(unit->CurrentTex[tex]);
+            break;
+         }
       }
    }
 }
@@ -867,6 +840,35 @@ _mesa_DeleteTextures( GLsizei n, const GLuint *textures)
 
 
 /**
+ * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
+ * into the corresponding Mesa texture target index.
+ * Return -1 if target is invalid.
+ */
+static GLint
+target_enum_to_index(GLenum target)
+{
+   switch (target) {
+   case GL_TEXTURE_1D:
+      return TEXTURE_1D_INDEX;
+   case GL_TEXTURE_2D:
+      return TEXTURE_2D_INDEX;
+   case GL_TEXTURE_3D:
+      return TEXTURE_3D_INDEX;
+   case GL_TEXTURE_CUBE_MAP_ARB:
+      return TEXTURE_CUBE_INDEX;
+   case GL_TEXTURE_RECTANGLE_NV:
+      return TEXTURE_RECT_INDEX;
+   case GL_TEXTURE_1D_ARRAY_EXT:
+      return TEXTURE_1D_ARRAY_INDEX;
+   case GL_TEXTURE_2D_ARRAY_EXT:
+      return TEXTURE_2D_ARRAY_INDEX;
+   default:
+      return -1;
+   }
+}
+
+
+/**
  * Bind a named texture to a texturing target.
  * 
  * \param target texture target.
@@ -888,38 +890,20 @@ _mesa_BindTexture( GLenum target, GLuint texName )
    const GLuint unit = ctx->Texture.CurrentUnit;
    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
    struct gl_texture_object *newTexObj = NULL, *defaultTexObj = NULL;
+   GLint targetIndex;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
       _mesa_debug(ctx, "glBindTexture %s %d\n",
                   _mesa_lookup_enum_by_nr(target), (GLint) texName);
 
-   switch (target) {
-   case GL_TEXTURE_1D:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_1D_INDEX];
-      break;
-   case GL_TEXTURE_2D:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_2D_INDEX];
-      break;
-   case GL_TEXTURE_3D:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_3D_INDEX];
-      break;
-   case GL_TEXTURE_CUBE_MAP_ARB:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_CUBE_INDEX];
-      break;
-   case GL_TEXTURE_RECTANGLE_NV:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_RECT_INDEX];
-      break;
-   case GL_TEXTURE_1D_ARRAY_EXT:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_1D_ARRAY_INDEX];
-      break;
-   case GL_TEXTURE_2D_ARRAY_EXT:
-      defaultTexObj = ctx->Shared->DefaultTex[TEXTURE_2D_ARRAY_INDEX];
-      break;
-   default:
+   targetIndex = target_enum_to_index(target);
+   if (targetIndex < 0) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glBindTexture(target)");
       return;
    }
+   assert(targetIndex < NUM_TEXTURE_TARGETS);
+   defaultTexObj = ctx->Shared->DefaultTex[targetIndex];
 
    /*
     * Get pointer to new texture object (newTexObj)
@@ -967,40 +951,8 @@ _mesa_BindTexture( GLenum target, GLuint texName )
     * texture object will be decremented.  It'll be deleted if the
     * count hits zero.
     */
-   switch (target) {
-      case GL_TEXTURE_1D:
-         _mesa_reference_texobj(&texUnit->Current1D, newTexObj);
-         ASSERT(texUnit->Current1D);
-         break;
-      case GL_TEXTURE_2D:
-         _mesa_reference_texobj(&texUnit->Current2D, newTexObj);
-         ASSERT(texUnit->Current2D);
-         break;
-      case GL_TEXTURE_3D:
-         _mesa_reference_texobj(&texUnit->Current3D, newTexObj);
-         ASSERT(texUnit->Current3D);
-         break;
-      case GL_TEXTURE_CUBE_MAP_ARB:
-         _mesa_reference_texobj(&texUnit->CurrentCubeMap, newTexObj);
-         ASSERT(texUnit->CurrentCubeMap);
-         break;
-      case GL_TEXTURE_RECTANGLE_NV:
-         _mesa_reference_texobj(&texUnit->CurrentRect, newTexObj);
-         ASSERT(texUnit->CurrentRect);
-         break;
-      case GL_TEXTURE_1D_ARRAY_EXT:
-         _mesa_reference_texobj(&texUnit->Current1DArray, newTexObj);
-         ASSERT(texUnit->Current1DArray);
-         break;
-      case GL_TEXTURE_2D_ARRAY_EXT:
-         _mesa_reference_texobj(&texUnit->Current2DArray, newTexObj);
-         ASSERT(texUnit->Current2DArray);
-         break;
-      default:
-         /* Bad target should be caught above */
-         _mesa_problem(ctx, "bad target in BindTexture");
-         return;
-   }
+   _mesa_reference_texobj(&texUnit->CurrentTex[targetIndex], newTexObj);
+   ASSERT(texUnit->CurrentTex[targetIndex]);
 
    /* Pass BindTexture call to device driver */
    if (ctx->Driver.BindTexture)
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 865aae86276..50f867e1c1c 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -92,29 +92,29 @@ get_texobj(GLcontext *ctx, GLenum target)
 
    switch (target) {
    case GL_TEXTURE_1D:
-      return texUnit->Current1D;
+      return texUnit->CurrentTex[TEXTURE_1D_INDEX];
    case GL_TEXTURE_2D:
-      return texUnit->Current2D;
+      return texUnit->CurrentTex[TEXTURE_2D_INDEX];
    case GL_TEXTURE_3D:
-      return texUnit->Current3D;
+      return texUnit->CurrentTex[TEXTURE_3D_INDEX];
    case GL_TEXTURE_CUBE_MAP:
       if (ctx->Extensions.ARB_texture_cube_map) {
-         return texUnit->CurrentCubeMap;
+         return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];
       }
       break;
    case GL_TEXTURE_RECTANGLE_NV:
       if (ctx->Extensions.NV_texture_rectangle) {
-         return texUnit->CurrentRect;
+         return texUnit->CurrentTex[TEXTURE_RECT_INDEX];
       }
       break;
    case GL_TEXTURE_1D_ARRAY_EXT:
       if (ctx->Extensions.MESA_texture_array) {
-         return texUnit->Current1DArray;
+         return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX];
       }
       break;
    case GL_TEXTURE_2D_ARRAY_EXT:
       if (ctx->Extensions.MESA_texture_array) {
-         return texUnit->Current2DArray;
+         return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX];
       }
       break;
    default:
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index b9e1a2a687a..27927d60b03 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -68,7 +68,7 @@ static const struct gl_tex_env_combine_state default_combine_state = {
 void
 _mesa_copy_texture_state( const GLcontext *src, GLcontext *dst )
 {
-   GLuint i;
+   GLuint i, tex;
 
    ASSERT(src);
    ASSERT(dst);
@@ -104,20 +104,10 @@ _mesa_copy_texture_state( const GLcontext *src, GLcontext *dst )
       /* copy texture object bindings, not contents of texture objects */
       _mesa_lock_context_textures(dst);
 
-      _mesa_reference_texobj(&dst->Texture.Unit[i].Current1D,
-                             src->Texture.Unit[i].Current1D);
-      _mesa_reference_texobj(&dst->Texture.Unit[i].Current2D,
-                             src->Texture.Unit[i].Current2D);
-      _mesa_reference_texobj(&dst->Texture.Unit[i].Current3D,
-                             src->Texture.Unit[i].Current3D);
-      _mesa_reference_texobj(&dst->Texture.Unit[i].CurrentCubeMap,
-                             src->Texture.Unit[i].CurrentCubeMap);
-      _mesa_reference_texobj(&dst->Texture.Unit[i].CurrentRect,
-                             src->Texture.Unit[i].CurrentRect);
-      _mesa_reference_texobj(&dst->Texture.Unit[i].Current1DArray,
-                             src->Texture.Unit[i].Current1DArray);
-      _mesa_reference_texobj(&dst->Texture.Unit[i].Current2DArray,
-                             src->Texture.Unit[i].Current2DArray);
+      for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+         _mesa_reference_texobj(&dst->Texture.Unit[i].CurrentTex[tex],
+                                src->Texture.Unit[i].CurrentTex[tex]);
+      }
 
       _mesa_unlock_context_textures(dst);
    }
@@ -558,6 +548,7 @@ update_texture_state( GLcontext *ctx )
    for (unit = 0; unit < ctx->Const.MaxTextureImageUnits; unit++) {
       struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
       GLbitfield enableBits;
+      GLuint tex;
 
       texUnit->_Current = NULL;
       texUnit->_ReallyEnabled = 0;
@@ -584,32 +575,29 @@ update_texture_state( GLcontext *ctx )
       if (enableBits == 0x0)
          continue;
 
-      ASSERT(texUnit->Current1D);
-      ASSERT(texUnit->Current2D);
-      ASSERT(texUnit->Current3D);
-      ASSERT(texUnit->CurrentCubeMap);
-      ASSERT(texUnit->CurrentRect);
-      ASSERT(texUnit->Current1DArray);
-      ASSERT(texUnit->Current2DArray);
+      for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+         ASSERT(texUnit->CurrentTex[tex]);
+      }
 
       /* Look for the highest-priority texture target that's enabled and
        * complete.  That's the one we'll use for texturing.  If we're using
        * a fragment program we're guaranteed that bitcount(enabledBits) <= 1.
        */
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->Current2DArray, TEXTURE_2D_ARRAY_BIT);
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->Current1DArray, TEXTURE_1D_ARRAY_BIT);
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->CurrentCubeMap, TEXTURE_CUBE_BIT);
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->Current3D, TEXTURE_3D_BIT);
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->CurrentRect, TEXTURE_RECT_BIT);
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->Current2D, TEXTURE_2D_BIT);
-      texture_override(ctx, texUnit, enableBits,
-                       texUnit->Current1D, TEXTURE_1D_BIT);
+      for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+         /* texture indexes from highest to lowest priority */
+         static const GLuint targets[NUM_TEXTURE_TARGETS] = {
+            TEXTURE_2D_ARRAY_INDEX,
+            TEXTURE_1D_ARRAY_INDEX,
+            TEXTURE_CUBE_INDEX,
+            TEXTURE_3D_INDEX,
+            TEXTURE_RECT_INDEX,
+            TEXTURE_2D_INDEX,
+            TEXTURE_1D_INDEX
+         };
+         GLuint texIndex = targets[tex];
+         texture_override(ctx, texUnit, enableBits,
+                          texUnit->CurrentTex[texIndex], 1 << texIndex);
+      }
 
       if (!texUnit->_ReallyEnabled) {
          continue;
@@ -734,6 +722,7 @@ static void
 init_texture_unit( GLcontext *ctx, GLuint unit )
 {
    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+   GLuint tex;
 
    texUnit->EnvMode = GL_MODULATE;
    ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 );
@@ -763,13 +752,10 @@ init_texture_unit( GLcontext *ctx, GLuint unit )
    ASSIGN_4V( texUnit->GenQ.EyePlane, 0.0, 0.0, 0.0, 0.0 );
 
    /* initialize current texture object ptrs to the shared default objects */
-   _mesa_reference_texobj(&texUnit->Current1D, ctx->Shared->DefaultTex[TEXTURE_1D_INDEX]);
-   _mesa_reference_texobj(&texUnit->Current2D, ctx->Shared->DefaultTex[TEXTURE_2D_INDEX]);
-   _mesa_reference_texobj(&texUnit->Current3D, ctx->Shared->DefaultTex[TEXTURE_3D_INDEX]);
-   _mesa_reference_texobj(&texUnit->CurrentCubeMap, ctx->Shared->DefaultTex[TEXTURE_CUBE_INDEX]);
-   _mesa_reference_texobj(&texUnit->CurrentRect, ctx->Shared->DefaultTex[TEXTURE_RECT_INDEX]);
-   _mesa_reference_texobj(&texUnit->Current1DArray, ctx->Shared->DefaultTex[TEXTURE_1D_ARRAY_INDEX]);
-   _mesa_reference_texobj(&texUnit->Current2DArray, ctx->Shared->DefaultTex[TEXTURE_2D_ARRAY_INDEX]);
+   for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+      _mesa_reference_texobj(&texUnit->CurrentTex[tex],
+                             ctx->Shared->DefaultTex[tex]);
+   }
 }
 
 
@@ -820,13 +806,9 @@ _mesa_free_texture_data(GLcontext *ctx)
    /* unreference current textures */
    for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) {
       struct gl_texture_unit *unit = ctx->Texture.Unit + u;
-      _mesa_reference_texobj(&unit->Current1D, NULL);
-      _mesa_reference_texobj(&unit->Current2D, NULL);
-      _mesa_reference_texobj(&unit->Current3D, NULL);
-      _mesa_reference_texobj(&unit->CurrentCubeMap, NULL);
-      _mesa_reference_texobj(&unit->CurrentRect, NULL);
-      _mesa_reference_texobj(&unit->Current1DArray, NULL);
-      _mesa_reference_texobj(&unit->Current2DArray, NULL);
+      for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
+         _mesa_reference_texobj(&unit->CurrentTex[tgt], NULL);
+      }
    }
 
    /* Free proxy texture objects */
@@ -851,24 +833,13 @@ _mesa_free_texture_data(GLcontext *ctx)
 void
 _mesa_update_default_objects_texture(GLcontext *ctx)
 {
-   GLuint i;
+   GLuint i, tex;
 
    for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
       struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
-
-      _mesa_reference_texobj(&texUnit->Current1D,
-                             ctx->Shared->DefaultTex[TEXTURE_1D_INDEX]);
-      _mesa_reference_texobj(&texUnit->Current2D,
-                             ctx->Shared->DefaultTex[TEXTURE_2D_INDEX]);
-      _mesa_reference_texobj(&texUnit->Current3D,
-                             ctx->Shared->DefaultTex[TEXTURE_3D_INDEX]);
-      _mesa_reference_texobj(&texUnit->CurrentCubeMap,
-                             ctx->Shared->DefaultTex[TEXTURE_CUBE_INDEX]);
-      _mesa_reference_texobj(&texUnit->CurrentRect,
-                             ctx->Shared->DefaultTex[TEXTURE_RECT_INDEX]);
-      _mesa_reference_texobj(&texUnit->Current1DArray,
-                             ctx->Shared->DefaultTex[TEXTURE_1D_ARRAY_INDEX]);
-      _mesa_reference_texobj(&texUnit->Current2DArray,
-                             ctx->Shared->DefaultTex[TEXTURE_2D_ARRAY_INDEX]);
+      for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+         _mesa_reference_texobj(&texUnit->CurrentTex[tex],
+                                ctx->Shared->DefaultTex[tex]);
+      }
    }
 }