mesa: add EXT_dsa + EXT_texture_integer functions
[mesa.git] / src / mesa / main / texparam.c
index b5d42d3047f8a81f7ff8214801e2eb709909899d..c642f4569928195d94cf3ba7c04b438e78b78e0e 100644 (file)
@@ -72,7 +72,7 @@ validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)
       break;
 
    case GL_CLAMP_TO_BORDER:
-      supported = is_desktop_gl && e->ARB_texture_border_clamp
+      supported = ctx->API != API_OPENGLES && e->ARB_texture_border_clamp
          && (target != GL_TEXTURE_EXTERNAL_OES);
       break;
 
@@ -114,38 +114,27 @@ validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)
 }
 
 
-/**
- * Get current texture object for given target.
- * Return NULL if any error (and record the error).
- * Note that this is different from _mesa_get_current_tex_object() in that
- * proxy targets are not accepted.
- * Only the glGetTexLevelParameter() functions accept proxy targets.
- */
-static struct gl_texture_object *
-get_texobj_by_target(struct gl_context *ctx, GLenum target, GLboolean get)
+static bool
+is_texparameteri_target_valid(GLenum target)
 {
-   struct gl_texture_unit *texUnit;
-   int targetIndex;
-
-   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "gl%sTexParameter(current unit)", get ? "Get" : "");
-      return NULL;
-   }
-
-   texUnit = _mesa_get_current_tex_unit(ctx);
-
-   targetIndex = _mesa_tex_target_to_index(ctx, target);
-   if (targetIndex < 0 || targetIndex == TEXTURE_BUFFER_INDEX) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "gl%sTexParameter(target)", get ? "Get" : "");
-      return NULL;
+   switch (target) {
+   case GL_TEXTURE_1D:
+   case GL_TEXTURE_1D_ARRAY:
+   case GL_TEXTURE_2D:
+   case GL_TEXTURE_2D_ARRAY:
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+   case GL_TEXTURE_3D:
+   case GL_TEXTURE_CUBE_MAP:
+   case GL_TEXTURE_CUBE_MAP_ARRAY:
+   case GL_TEXTURE_RECTANGLE:
+      return true;
+   default:
+      return false;
    }
-   assert(targetIndex < NUM_TEXTURE_TARGETS);
-
-   return texUnit->CurrentTex[targetIndex];
 }
 
+
 /**
  * Get current texture object for given name.
  * Return NULL if any error (and record the error).
@@ -153,37 +142,20 @@ get_texobj_by_target(struct gl_context *ctx, GLenum target, GLboolean get)
  * Only the glGetTexLevelParameter() functions accept proxy targets.
  */
 static struct gl_texture_object *
-get_texobj_by_name(struct gl_context *ctx, GLuint texture, GLboolean get)
+get_texobj_by_name(struct gl_context *ctx, GLuint texture, const char *name)
 {
    struct gl_texture_object *texObj;
 
-   texObj = _mesa_lookup_texture(ctx, texture);
-   if (!texObj) {
-      /*
-       * User passed a non-generated name.
-       * Throw the error in the caller.
-       */
+   texObj = _mesa_lookup_texture_err(ctx, texture, name);
+   if (!texObj)
       return NULL;
-   }
 
-   switch (texObj->Target) {
-   case GL_TEXTURE_1D:
-   case GL_TEXTURE_1D_ARRAY:
-   case GL_TEXTURE_2D:
-   case GL_TEXTURE_2D_ARRAY:
-   case GL_TEXTURE_2D_MULTISAMPLE:
-   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
-   case GL_TEXTURE_3D:
-   case GL_TEXTURE_CUBE_MAP:
-   case GL_TEXTURE_CUBE_MAP_ARRAY:
-   case GL_TEXTURE_RECTANGLE:
-      return texObj;
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "gl%sTextureParameter(target)", get ? "Get" : "");
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(target)", name);
       return NULL;
    }
 
+   return texObj;
 }
 
 
@@ -214,7 +186,7 @@ comp_to_swizzle(GLenum comp)
 
 
 static void
-set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
+set_swizzle_component(GLushort *swizzle, GLuint comp, GLuint swz)
 {
    assert(comp < 4);
    assert(swz <= SWIZZLE_NIL);
@@ -233,27 +205,27 @@ set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
 static inline void
 flush(struct gl_context *ctx)
 {
-   FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+   FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
 }
 
 
 /**
  * This is called just prior to changing any texture object state which
  * could affect texture completeness (texture base level, max level).
- * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
+ * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE_OBJECT
  * state flag and then mark the texture object as 'incomplete' so that any
  * per-texture derived state gets recomputed.
  */
 static inline void
 incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
 {
-   FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+   FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
    _mesa_dirty_texobj(ctx, texObj);
 }
 
 
-static GLboolean
-target_allows_setting_sampler_parameters(GLenum target)
+GLboolean
+_mesa_target_allows_setting_sampler_parameters(GLenum target)
 {
    switch (target) {
    case GL_TEXTURE_2D_MULTISAMPLE:
@@ -277,9 +249,22 @@ set_tex_parameteri(struct gl_context *ctx,
 {
    const char *suffix = dsa ? "ture" : "";
 
+   if (texObj->HandleAllocated) {
+      /* The ARB_bindless_texture spec says:
+       *
+       * "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
+       * CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
+       * functions defined in terms of these, if the texture object to be
+       * modified is referenced by one or more texture or image handles."
+       */
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glTex%sParameter(immutable texture)", suffix);
+      return GL_FALSE;
+   }
+
    switch (pname) {
    case GL_TEXTURE_MIN_FILTER:
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.MinFilter == params[0])
@@ -307,7 +292,7 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_MAG_FILTER:
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.MagFilter == params[0])
@@ -324,7 +309,7 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_S:
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.WrapS == params[0])
@@ -337,7 +322,7 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_T:
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.WrapT == params[0])
@@ -350,7 +335,7 @@ set_tex_parameteri(struct gl_context *ctx,
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_R:
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.WrapR == params[0])
@@ -369,8 +354,26 @@ set_tex_parameteri(struct gl_context *ctx,
       if (texObj->BaseLevel == params[0])
          return GL_FALSE;
 
+      /* Section 8.10 (Texture Parameters) of the OpenGL 4.5 Core Profile spec
+       * says:
+       *
+       *    An INVALID_OPERATION error is generated if the effective target is
+       *    TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY, or
+       *    TEXTURE_RECTANGLE, and pname TEXTURE_BASE_LEVEL is set to a value
+       *    other than zero.
+       *
+       * Note that section 3.8.8 (Texture Parameters) of the OpenGL 3.3 Core
+       * Profile spec said:
+       *
+       *    The error INVALID_VALUE is generated if TEXTURE_BASE_LEVEL is set
+       *    to any value other than zero.
+       *
+       * We take the 4.5 language as a correction to 3.3, and we implement
+       * that on all GL versions.
+       */
       if ((texObj->Target == GL_TEXTURE_2D_MULTISAMPLE ||
-           texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) && params[0] != 0)
+           texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY ||
+           texObj->Target == GL_TEXTURE_RECTANGLE) && params[0] != 0)
          goto invalid_operation;
 
       if (params[0] < 0) {
@@ -378,12 +381,6 @@ set_tex_parameteri(struct gl_context *ctx,
                      "glTex%sParameter(param=%d)", suffix, params[0]);
          return GL_FALSE;
       }
-      if (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glTex%sParameter(target=%s, param=%d)", suffix,
-                     _mesa_lookup_enum_by_nr(texObj->Target), params[0]);
-         return GL_FALSE;
-      }
       incomplete(ctx, texObj);
 
       /** See note about ARB_texture_storage below */
@@ -438,7 +435,7 @@ set_tex_parameteri(struct gl_context *ctx,
       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
           || _mesa_is_gles3(ctx)) {
 
-         if (!target_allows_setting_sampler_parameters(texObj->Target))
+         if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
             goto invalid_enum;
 
          if (texObj->Sampler.CompareMode == params[0])
@@ -457,7 +454,7 @@ set_tex_parameteri(struct gl_context *ctx,
       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
           || _mesa_is_gles3(ctx)) {
 
-         if (!target_allows_setting_sampler_parameters(texObj->Target))
+         if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
             goto invalid_enum;
 
          if (texObj->Sampler.CompareFunc == params[0])
@@ -500,7 +497,7 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_DEPTH_STENCIL_TEXTURE_MODE:
-      if (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_stencil_texturing) {
+      if (_mesa_has_ARB_stencil_texturing(ctx) || _mesa_is_gles31(ctx)) {
          bool stencil = params[0] == GL_STENCIL_INDEX;
          if (!stencil && params[0] != GL_DEPTH_COMPONENT)
             goto invalid_param;
@@ -568,11 +565,10 @@ set_tex_parameteri(struct gl_context *ctx,
       goto invalid_pname;
 
    case GL_TEXTURE_SRGB_DECODE_EXT:
-      if (_mesa_is_desktop_gl(ctx)
-          && ctx->Extensions.EXT_texture_sRGB_decode) {
+      if (ctx->Extensions.EXT_texture_sRGB_decode) {
          GLenum decode = params[0];
 
-         if (!target_allows_setting_sampler_parameters(texObj->Target))
+         if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
             goto invalid_enum;
 
         if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
@@ -590,7 +586,7 @@ set_tex_parameteri(struct gl_context *ctx,
           && ctx->Extensions.AMD_seamless_cubemap_per_texture) {
          GLenum param = params[0];
 
-         if (!target_allows_setting_sampler_parameters(texObj->Target))
+         if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
             goto invalid_enum;
 
          if (param != GL_TRUE && param != GL_FALSE) {
@@ -604,28 +600,36 @@ set_tex_parameteri(struct gl_context *ctx,
       }
       goto invalid_pname;
 
+   case GL_TEXTURE_TILING_EXT:
+      if (ctx->Extensions.EXT_memory_object) {
+         texObj->TextureTiling = params[0];
+
+         return GL_TRUE;
+      }
+      goto invalid_pname;
+
    default:
       goto invalid_pname;
    }
 
 invalid_pname:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
-               suffix, _mesa_lookup_enum_by_nr(pname));
+               suffix, _mesa_enum_to_string(pname));
    return GL_FALSE;
 
 invalid_param:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(param=%s)",
-               suffix, _mesa_lookup_enum_by_nr(params[0]));
+               suffix, _mesa_enum_to_string(params[0]));
    return GL_FALSE;
 
 invalid_operation:
    _mesa_error(ctx, GL_INVALID_OPERATION, "glTex%sParameter(pname=%s)",
-               suffix, _mesa_lookup_enum_by_nr(pname));
+               suffix, _mesa_enum_to_string(pname));
    return GL_FALSE;
 
 invalid_enum:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
-               suffix, _mesa_lookup_enum_by_nr(pname));
+               suffix, _mesa_enum_to_string(pname));
    return GL_FALSE;
 }
 
@@ -641,12 +645,25 @@ set_tex_parameterf(struct gl_context *ctx,
 {
    const char *suffix = dsa ? "ture" : "";
 
+   if (texObj->HandleAllocated) {
+      /* The ARB_bindless_texture spec says:
+       *
+       * "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
+       * CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
+       * functions defined in terms of these, if the texture object to be
+       * modified is referenced by one or more texture or image handles."
+       */
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glTex%sParameter(immutable texture)", suffix);
+      return GL_FALSE;
+   }
+
    switch (pname) {
    case GL_TEXTURE_MIN_LOD:
       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
          goto invalid_pname;
 
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.MinLod == params[0])
@@ -659,7 +676,7 @@ set_tex_parameterf(struct gl_context *ctx,
       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
          goto invalid_pname;
 
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.MaxLod == params[0])
@@ -678,12 +695,12 @@ set_tex_parameterf(struct gl_context *ctx,
 
    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
       if (ctx->Extensions.EXT_texture_filter_anisotropic) {
-         if (!target_allows_setting_sampler_parameters(texObj->Target))
+         if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
             goto invalid_enum;
 
          if (texObj->Sampler.MaxAnisotropy == params[0])
             return GL_FALSE;
-         if (params[0] < 1.0) {
+         if (params[0] < 1.0F) {
             _mesa_error(ctx, GL_INVALID_VALUE, "glTex%sParameter(param)",
                         suffix);
             return GL_FALSE;
@@ -706,7 +723,7 @@ set_tex_parameterf(struct gl_context *ctx,
       if (_mesa_is_gles(ctx))
          goto invalid_pname;
 
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       if (texObj->Sampler.LodBias != params[0]) {
@@ -717,10 +734,19 @@ set_tex_parameterf(struct gl_context *ctx,
       break;
 
    case GL_TEXTURE_BORDER_COLOR:
-      if (!_mesa_is_desktop_gl(ctx))
+      /* Border color exists in desktop OpenGL since 1.0 for GL_CLAMP.  In
+       * OpenGL ES 2.0+, it only exists in when GL_OES_texture_border_clamp is
+       * enabled.  It is never available in OpenGL ES 1.x.
+       *
+       * FIXME: Every driver that supports GLES2 has this extension.  Elide
+       * the check?
+       */
+      if (ctx->API == API_OPENGLES ||
+          (ctx->API == API_OPENGLES2 &&
+           !ctx->Extensions.ARB_texture_border_clamp))
          goto invalid_pname;
 
-      if (!target_allows_setting_sampler_parameters(texObj->Target))
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
          goto invalid_enum;
 
       flush(ctx);
@@ -738,6 +764,13 @@ set_tex_parameterf(struct gl_context *ctx,
       }
       return GL_TRUE;
 
+   case GL_TEXTURE_TILING_EXT:
+      if (ctx->Extensions.EXT_memory_object) {
+         texObj->TextureTiling = params[0];
+         return GL_TRUE;
+      }
+      goto invalid_pname;
+
    default:
       goto invalid_pname;
    }
@@ -745,12 +778,12 @@ set_tex_parameterf(struct gl_context *ctx,
 
 invalid_pname:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
-               suffix, _mesa_lookup_enum_by_nr(pname));
+               suffix, _mesa_enum_to_string(pname));
    return GL_FALSE;
 
 invalid_enum:
    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
-               suffix, _mesa_lookup_enum_by_nr(pname));
+               suffix, _mesa_enum_to_string(pname));
    return GL_FALSE;
 }
 
@@ -807,7 +840,7 @@ _mesa_texture_parameterf(struct gl_context *ctx,
    }
 
    if (ctx->Driver.TexParameter && need_update) {
-      ctx->Driver.TexParameter(ctx, texObj, pname, &param);
+      ctx->Driver.TexParameter(ctx, texObj, pname);
    }
 }
 
@@ -874,7 +907,7 @@ _mesa_texture_parameterfv(struct gl_context *ctx,
    }
 
    if (ctx->Driver.TexParameter && need_update) {
-      ctx->Driver.TexParameter(ctx, texObj, pname, params);
+      ctx->Driver.TexParameter(ctx, texObj, pname);
    }
 }
 
@@ -919,8 +952,7 @@ _mesa_texture_parameteri(struct gl_context *ctx,
    }
 
    if (ctx->Driver.TexParameter && need_update) {
-      GLfloat fparam = (GLfloat) param;
-      ctx->Driver.TexParameter(ctx, texObj, pname, &fparam);
+      ctx->Driver.TexParameter(ctx, texObj, pname);
    }
 }
 
@@ -964,15 +996,7 @@ _mesa_texture_parameteriv(struct gl_context *ctx,
    }
 
    if (ctx->Driver.TexParameter && need_update) {
-      GLfloat fparams[4];
-      fparams[0] = INT_TO_FLOAT(params[0]);
-      if (pname == GL_TEXTURE_BORDER_COLOR ||
-          pname == GL_TEXTURE_CROP_RECT_OES) {
-         fparams[1] = INT_TO_FLOAT(params[1]);
-         fparams[2] = INT_TO_FLOAT(params[2]);
-         fparams[3] = INT_TO_FLOAT(params[3]);
-      }
-      ctx->Driver.TexParameter(ctx, texObj, pname, fparams);
+      ctx->Driver.TexParameter(ctx, texObj, pname);
    }
 }
 
@@ -983,7 +1007,17 @@ _mesa_texture_parameterIiv(struct gl_context *ctx,
 {
    switch (pname) {
    case GL_TEXTURE_BORDER_COLOR:
-      FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+      if (texObj->HandleAllocated) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glTextureParameterIiv(immutable texture)");
+         return;
+      }
+
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIiv(texture)");
+         return;
+      }
+      FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
       /* set the integer-valued border color */
       COPY_4V(texObj->Sampler.BorderColor.i, params);
       break;
@@ -1001,7 +1035,17 @@ _mesa_texture_parameterIuiv(struct gl_context *ctx,
 {
    switch (pname) {
    case GL_TEXTURE_BORDER_COLOR:
-      FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+      if (texObj->HandleAllocated) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glTextureParameterIuiv(immutable texture)");
+         return;
+      }
+
+      if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIuiv(texture)");
+         return;
+      }
+      FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
       /* set the unsigned integer-valued border color */
       COPY_4V(texObj->Sampler.BorderColor.ui, params);
       break;
@@ -1019,7 +1063,10 @@ _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_FALSE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   ctx->Texture.CurrentUnit,
+                                                   false,
+                                                   "glTexParameterf");
    if (!texObj)
       return;
 
@@ -1032,7 +1079,10 @@ _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_FALSE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   ctx->Texture.CurrentUnit,
+                                                   false,
+                                                   "glTexParameterfv");
    if (!texObj)
       return;
 
@@ -1045,7 +1095,10 @@ _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_FALSE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   ctx->Texture.CurrentUnit,
+                                                   false,
+                                                   "glTexParameteri");
    if (!texObj)
       return;
 
@@ -1058,7 +1111,10 @@ _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_FALSE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   ctx->Texture.CurrentUnit,
+                                                   false,
+                                                   "glTexParameteriv");
    if (!texObj)
       return;
 
@@ -1076,7 +1132,10 @@ _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_FALSE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   ctx->Texture.CurrentUnit,
+                                                   false,
+                                                   "glTexParameterIiv");
    if (!texObj)
       return;
 
@@ -1094,13 +1153,34 @@ _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_FALSE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   ctx->Texture.CurrentUnit,
+                                                   false,
+                                                   "glTexParameterIuiv");
    if (!texObj)
       return;
 
    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, false);
 }
 
+void GLAPIENTRY
+_mesa_TextureParameterfvEXT(GLuint texture, GLenum target, GLenum pname, const GLfloat *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glTextureParameterfvEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfvEXT");
+      return;
+   }
+
+   _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
+}
 
 void GLAPIENTRY
 _mesa_TextureParameterfv(GLuint texture, GLenum pname, const GLfloat *params)
@@ -1108,210 +1188,414 @@ _mesa_TextureParameterfv(GLuint texture, GLenum pname, const GLfloat *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfv(texture)");
+   texObj = get_texobj_by_name(ctx, texture, "glTextureParameterfv");
+   if (!texObj)
       return;
-   }
 
    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
 }
 
 void GLAPIENTRY
-_mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
+_mesa_MultiTexParameterfvEXT(GLenum texunit, GLenum target, GLenum pname, const GLfloat *params)
 {
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterf(texture)");
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   false,
+                                                   "glMultiTexParameterfvEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameterifvEXT(target)");
       return;
    }
 
-   _mesa_texture_parameterf(ctx, texObj, pname, param, true);
+   _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
 }
 
 void GLAPIENTRY
-_mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
+_mesa_TextureParameterfEXT(GLuint texture, GLenum target, GLenum pname, GLfloat param)
 {
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteri(texture)");
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glTextureParameterfEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfEXT");
       return;
    }
 
-   _mesa_texture_parameteri(ctx, texObj, pname, param, true);
+   _mesa_texture_parameterf(ctx, texObj, pname, param, true);
 }
 
 void GLAPIENTRY
-_mesa_TextureParameteriv(GLuint texture, GLenum pname,
-                         const GLint *params)
+_mesa_MultiTexParameterfEXT(GLenum texunit, GLenum target, GLenum pname,
+                            GLfloat param)
 {
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteriv(texture)");
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   false,
+                                                   "glMultiTexParameterfEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameterfEXT");
       return;
    }
 
-   _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
+   _mesa_texture_parameterf(ctx, texObj, pname, param, true);
 }
 
-
 void GLAPIENTRY
-_mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
+_mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
 {
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glTextureParameterIiv(texture)");
+   texObj = get_texobj_by_name(ctx, texture, "glTextureParameterf");
+   if (!texObj)
       return;
-   }
 
-   _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
+   _mesa_texture_parameterf(ctx, texObj, pname, param, true);
 }
 
 void GLAPIENTRY
-_mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
+_mesa_TextureParameteriEXT(GLuint texture, GLenum target, GLenum pname, GLint param)
 {
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glTextureParameterIuiv(texture)");
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glTextureParameteriEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteriEXT(target)");
       return;
    }
 
-   _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
+   _mesa_texture_parameteri(ctx, texObj, pname, param, true);
 }
 
-static GLboolean
-legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
-                                     bool dsa)
+void GLAPIENTRY
+_mesa_MultiTexParameteriEXT(GLenum texunit, GLenum target, GLenum pname,
+                            GLint param)
 {
-   switch (target) {
-   case GL_TEXTURE_1D:
-   case GL_PROXY_TEXTURE_1D:
-   case GL_TEXTURE_2D:
-   case GL_PROXY_TEXTURE_2D:
-   case GL_TEXTURE_3D:
-   case GL_PROXY_TEXTURE_3D:
-      return GL_TRUE;
-   case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
-   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
-   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
-   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
-   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
-   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
-   case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
-      return ctx->Extensions.ARB_texture_cube_map;
-   case GL_TEXTURE_CUBE_MAP_ARRAY_ARB:
-   case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY_ARB:
-      return ctx->Extensions.ARB_texture_cube_map_array;
-   case GL_TEXTURE_RECTANGLE_NV:
-   case GL_PROXY_TEXTURE_RECTANGLE_NV:
-      return ctx->Extensions.NV_texture_rectangle;
-   case GL_TEXTURE_1D_ARRAY_EXT:
-   case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
-   case GL_TEXTURE_2D_ARRAY_EXT:
-   case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
-      return ctx->Extensions.EXT_texture_array;
-   case GL_TEXTURE_BUFFER:
-      /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
-       * but not in earlier versions that expose ARB_texture_buffer_object.
-       *
-       * From the ARB_texture_buffer_object spec:
-       * "(7) Do buffer textures support texture parameters (TexParameter) or
-       *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
-       *
-       *    RESOLVED:  No. [...] Note that the spec edits above don't add
-       *    explicit error language for any of these cases.  That is because
-       *    each of the functions enumerate the set of valid <target>
-       *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
-       *    these cases means that target is not legal, and an INVALID_ENUM
-       *    error should be generated."
-       *
-       * From the OpenGL 3.1 spec:
-       * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
-       */
-      return ctx->API == API_OPENGL_CORE && ctx->Version >= 31;
-   case GL_TEXTURE_2D_MULTISAMPLE:
-   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
-   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
-   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
-      return ctx->Extensions.ARB_texture_multisample;
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
 
-   /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
-    *  (30.10.2014) Section 8.11 Texture Queries says:
-    *       "For GetTextureLevelParameter* only, texture may also be a cube
-    *       map texture object.  In this case the query is always performed
-    *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
-    *       is no way to specify another face."
-    */
-   case GL_TEXTURE_CUBE_MAP:
-      return dsa;
-   default:
-      return GL_FALSE;
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   false,
+                                                   "glMultiTexParameteriEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameteriEXT(target)");
+      return;
    }
+
+   _mesa_texture_parameteri(ctx, texObj, pname, param, true);
 }
 
+void GLAPIENTRY
+_mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = get_texobj_by_name(ctx, texture, "glTextureParameteri");
+   if (!texObj)
+      return;
 
-static void
-get_tex_level_parameter_image(struct gl_context *ctx,
-                              const struct gl_texture_object *texObj,
-                              GLenum target, GLint level,
-                              GLenum pname, GLint *params,
-                              bool dsa)
+   _mesa_texture_parameteri(ctx, texObj, pname, param, true);
+}
+
+void GLAPIENTRY
+_mesa_TextureParameterivEXT(GLuint texture, GLenum target, GLenum pname,
+                         const GLint *params)
 {
-   const struct gl_texture_image *img = NULL;
-   struct gl_texture_image dummy_image;
-   mesa_format texFormat;
-   const char *suffix = dsa ? "ture" : "";
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
 
-   img = _mesa_select_tex_image(texObj, target, level);
-   if (!img || img->TexFormat == MESA_FORMAT_NONE) {
-      /* In case of undefined texture image return the default values.
-       *
-       * From OpenGL 4.0 spec, page 398:
-       *    "The initial internal format of a texel array is RGBA
-       *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
-       *     use TEXTURE_INTERNAL_FORMAT."
-       */
-      memset(&dummy_image, 0, sizeof(dummy_image));
-      dummy_image.TexFormat = MESA_FORMAT_NONE;
-      dummy_image.InternalFormat = GL_RGBA;
-      dummy_image._BaseFormat = GL_NONE;
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glTextureParameterivEXT");
+   if (!texObj)
+      return;
 
-      img = &dummy_image;
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterivEXT(target)");
+      return;
    }
 
-   texFormat = img->TexFormat;
+   _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
+}
 
-   switch (pname) {
-      case GL_TEXTURE_WIDTH:
-         *params = img->Width;
-         break;
-      case GL_TEXTURE_HEIGHT:
-         *params = img->Height;
-         break;
-      case GL_TEXTURE_DEPTH:
+void GLAPIENTRY
+_mesa_MultiTexParameterivEXT(GLenum texunit, GLenum target, GLenum pname,
+                             const GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   false,
+                                                   "glMultiTexParameterivEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameterivEXT(target)");
+      return;
+   }
+
+   _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_TextureParameteriv(GLuint texture, GLenum pname,
+                         const GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = get_texobj_by_name(ctx, texture, "glTextureParameteriv");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
+}
+
+
+void GLAPIENTRY
+_mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIiv");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_TextureParameterIivEXT(GLuint texture, GLenum target, GLenum pname,
+                             const GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glTextureParameterIivEXT");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_MultiTexParameterIivEXT(GLenum texunit, GLenum target, GLenum pname,
+                              const GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   true,
+                                                   "glMultiTexParameterIivEXT");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIuiv");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_TextureParameterIuivEXT(GLuint texture, GLenum target, GLenum pname,
+                              const GLuint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glTextureParameterIuivEXT");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_MultiTexParameterIuivEXT(GLenum texunit, GLenum target, GLenum pname,
+                               const GLuint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   true,
+                                                   "glMultiTexParameterIuivEXT");
+   if (!texObj)
+      return;
+
+   _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
+}
+
+GLboolean
+_mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
+                                           bool dsa)
+{
+   /* Common targets for desktop GL and GLES 3.1. */
+   switch (target) {
+   case GL_TEXTURE_2D:
+   case GL_TEXTURE_3D:
+      return GL_TRUE;
+   case GL_TEXTURE_2D_ARRAY_EXT:
+      return ctx->Extensions.EXT_texture_array;
+   case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+      return ctx->Extensions.ARB_texture_cube_map;
+   case GL_TEXTURE_2D_MULTISAMPLE:
+   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return ctx->Extensions.ARB_texture_multisample;
+   case GL_TEXTURE_BUFFER:
+      /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
+       * but not in earlier versions that expose ARB_texture_buffer_object.
+       *
+       * From the ARB_texture_buffer_object spec:
+       * "(7) Do buffer textures support texture parameters (TexParameter) or
+       *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
+       *
+       *    RESOLVED:  No. [...] Note that the spec edits above don't add
+       *    explicit error language for any of these cases.  That is because
+       *    each of the functions enumerate the set of valid <target>
+       *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
+       *    these cases means that target is not legal, and an INVALID_ENUM
+       *    error should be generated."
+       *
+       * From the OpenGL 3.1 spec:
+       * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
+       */
+      return (_mesa_is_desktop_gl(ctx) && ctx->Version >= 31) ||
+             _mesa_has_OES_texture_buffer(ctx);
+   case GL_TEXTURE_CUBE_MAP_ARRAY:
+      return _mesa_has_texture_cube_map_array(ctx);
+   }
+
+   if (!_mesa_is_desktop_gl(ctx))
+      return GL_FALSE;
+
+   /* Rest of the desktop GL targets. */
+   switch (target) {
+   case GL_TEXTURE_1D:
+   case GL_PROXY_TEXTURE_1D:
+   case GL_PROXY_TEXTURE_2D:
+   case GL_PROXY_TEXTURE_3D:
+      return GL_TRUE;
+   case GL_PROXY_TEXTURE_CUBE_MAP:
+      return ctx->Extensions.ARB_texture_cube_map;
+   case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
+      return ctx->Extensions.ARB_texture_cube_map_array;
+   case GL_TEXTURE_RECTANGLE_NV:
+   case GL_PROXY_TEXTURE_RECTANGLE_NV:
+      return ctx->Extensions.NV_texture_rectangle;
+   case GL_TEXTURE_1D_ARRAY_EXT:
+   case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+   case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+      return ctx->Extensions.EXT_texture_array;
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+   case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+      return ctx->Extensions.ARB_texture_multisample;
+
+   /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
+    *  (30.10.2014) Section 8.11 Texture Queries says:
+    *       "For GetTextureLevelParameter* only, texture may also be a cube
+    *       map texture object.  In this case the query is always performed
+    *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
+    *       is no way to specify another face."
+    */
+   case GL_TEXTURE_CUBE_MAP:
+      return dsa;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+static void
+get_tex_level_parameter_image(struct gl_context *ctx,
+                              const struct gl_texture_object *texObj,
+                              GLenum target, GLint level,
+                              GLenum pname, GLint *params,
+                              bool dsa)
+{
+   const struct gl_texture_image *img = NULL;
+   struct gl_texture_image dummy_image;
+   mesa_format texFormat;
+   const char *suffix = dsa ? "ture" : "";
+
+   img = _mesa_select_tex_image(texObj, target, level);
+   if (!img || img->TexFormat == MESA_FORMAT_NONE) {
+      /* In case of undefined texture image return the default values.
+       *
+       * From OpenGL 4.0 spec, page 398:
+       *    "The initial internal format of a texel array is RGBA
+       *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
+       *     use TEXTURE_INTERNAL_FORMAT."
+       */
+      memset(&dummy_image, 0, sizeof(dummy_image));
+      dummy_image.TexFormat = MESA_FORMAT_NONE;
+      dummy_image.InternalFormat = GL_RGBA;
+      dummy_image._BaseFormat = GL_NONE;
+      dummy_image.FixedSampleLocations = GL_TRUE;
+
+      img = &dummy_image;
+   }
+
+   texFormat = img->TexFormat;
+
+   switch (pname) {
+      case GL_TEXTURE_WIDTH:
+         *params = img->Width;
+         break;
+      case GL_TEXTURE_HEIGHT:
+         *params = img->Height;
+         break;
+      case GL_TEXTURE_DEPTH:
          *params = img->Depth;
          break;
       case GL_TEXTURE_INTERNAL_FORMAT:
@@ -1365,6 +1649,11 @@ get_tex_level_parameter_image(struct gl_context *ctx,
                               _mesa_get_format_bits(texFormat,
                                                     GL_TEXTURE_GREEN_SIZE));
             }
+            if (*params == 0 && pname == GL_TEXTURE_INTENSITY_SIZE) {
+               /* Gallium may store intensity as LA */
+               *params = _mesa_get_format_bits(texFormat, 
+                                               GL_TEXTURE_ALPHA_SIZE);
+            }
          }
          else {
             *params = 0;
@@ -1387,16 +1676,15 @@ get_tex_level_parameter_image(struct gl_context *ctx,
 
       /* GL_ARB_texture_compression */
       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
-        if (_mesa_is_format_compressed(texFormat) &&
+         if (_mesa_is_format_compressed(texFormat) &&
              !_mesa_is_proxy_texture(target)) {
             *params = _mesa_format_image_size(texFormat, img->Width,
                                               img->Height, img->Depth);
-    }
-    else {
-       _mesa_error(ctx, GL_INVALID_OPERATION,
-                   "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
-                   _mesa_lookup_enum_by_nr(pname));
-    }
+         } else {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
+                        _mesa_enum_to_string(pname));
+         }
          break;
       case GL_TEXTURE_COMPRESSED:
          *params = (GLint) _mesa_is_format_compressed(texFormat);
@@ -1434,6 +1722,29 @@ get_tex_level_parameter_image(struct gl_context *ctx,
          *params = img->FixedSampleLocations;
          break;
 
+      /* There is never a buffer data store here, but these pnames still have
+       * to work.
+       */
+
+      /* GL_ARB_texture_buffer_object */
+      case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
+         if (!ctx->Extensions.ARB_texture_buffer_object)
+            goto invalid_pname;
+         *params = 0;
+         break;
+
+      /* GL_ARB_texture_buffer_range */
+      case GL_TEXTURE_BUFFER_OFFSET:
+         if (!ctx->Extensions.ARB_texture_buffer_range)
+            goto invalid_pname;
+         *params = 0;
+         break;
+      case GL_TEXTURE_BUFFER_SIZE:
+         if (!ctx->Extensions.ARB_texture_buffer_range)
+            goto invalid_pname;
+         *params = 0;
+         break;
+
       default:
          goto invalid_pname;
    }
@@ -1444,10 +1755,13 @@ get_tex_level_parameter_image(struct gl_context *ctx,
 invalid_pname:
    _mesa_error(ctx, GL_INVALID_ENUM,
                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
-               _mesa_lookup_enum_by_nr(pname));
+               _mesa_enum_to_string(pname));
 }
 
 
+/**
+ * Handle a glGetTexLevelParamteriv() call for a texture buffer.
+ */
 static void
 get_tex_level_parameter_buffer(struct gl_context *ctx,
                                const struct gl_texture_object *texObj,
@@ -1455,13 +1769,26 @@ get_tex_level_parameter_buffer(struct gl_context *ctx,
 {
    const struct gl_buffer_object *bo = texObj->BufferObject;
    mesa_format texFormat = texObj->_BufferObjectFormat;
+   int bytes = MAX2(1, _mesa_get_format_bytes(texFormat));
    GLenum internalFormat = texObj->BufferObjectFormat;
    GLenum baseFormat = _mesa_get_format_base_format(texFormat);
    const char *suffix = dsa ? "ture" : "";
 
+   assert(texObj->Target == GL_TEXTURE_BUFFER);
+
    if (!bo) {
       /* undefined texture buffer object */
-      *params = pname == GL_TEXTURE_COMPONENTS ? 1 : 0;
+      switch (pname) {
+      case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
+         *params = GL_TRUE;
+         break;
+      case GL_TEXTURE_INTERNAL_FORMAT:
+         *params = internalFormat;
+         break;
+      default:
+         *params = 0;
+         break;
+      }
       return;
    }
 
@@ -1470,10 +1797,13 @@ get_tex_level_parameter_buffer(struct gl_context *ctx,
          *params = bo->Name;
          break;
       case GL_TEXTURE_WIDTH:
-         *params = bo->Size;
+         *params = ((texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize)
+            / bytes;
          break;
       case GL_TEXTURE_HEIGHT:
       case GL_TEXTURE_DEPTH:
+         *params = 1;
+         break;
       case GL_TEXTURE_BORDER:
       case GL_TEXTURE_SHARED_SIZE:
       case GL_TEXTURE_COMPRESSED:
@@ -1523,12 +1853,25 @@ get_tex_level_parameter_buffer(struct gl_context *ctx,
          *params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize;
          break;
 
+      /* GL_ARB_texture_multisample */
+      case GL_TEXTURE_SAMPLES:
+         if (!ctx->Extensions.ARB_texture_multisample)
+            goto invalid_pname;
+         *params = 0;
+         break;
+
+      case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
+         if (!ctx->Extensions.ARB_texture_multisample)
+            goto invalid_pname;
+         *params = GL_TRUE;
+         break;
+
       /* GL_ARB_texture_compression */
       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
          /* Always illegal for GL_TEXTURE_BUFFER */
          _mesa_error(ctx, GL_INVALID_OPERATION,
                      "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
-                     _mesa_lookup_enum_by_nr(pname));
+                     _mesa_enum_to_string(pname));
          break;
 
       /* GL_ARB_texture_float */
@@ -1557,9 +1900,22 @@ get_tex_level_parameter_buffer(struct gl_context *ctx,
 invalid_pname:
    _mesa_error(ctx, GL_INVALID_ENUM,
                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
-               _mesa_lookup_enum_by_nr(pname));
+               _mesa_enum_to_string(pname));
 }
 
+static bool
+valid_tex_level_parameteriv_target(struct gl_context *ctx, GLenum target,
+                                   bool dsa)
+{
+   const char *suffix = dsa ? "ture" : "";
+   if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, dsa)) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
+                  _mesa_enum_to_string(target));
+      return false;
+   }
+   return true;
+}
 
 /**
  * This isn't exposed to the rest of the driver because it is a part of the
@@ -1583,13 +1939,6 @@ get_tex_level_parameteriv(struct gl_context *ctx,
       return;
    }
 
-   if (!legal_get_tex_level_parameter_target(ctx, target, dsa)) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
-                  _mesa_lookup_enum_by_nr(target));
-      return;
-   }
-
    maxLevels = _mesa_max_texture_levels(ctx, target);
    assert(maxLevels != 0);
 
@@ -1617,6 +1966,9 @@ _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
    GLint iparam;
    GET_CURRENT_CONTEXT(ctx);
 
+   if (!valid_tex_level_parameteriv_target(ctx, target, false))
+      return;
+
    texObj = _mesa_get_current_tex_object(ctx, target);
    if (!texObj)
       return;
@@ -1634,6 +1986,9 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
+   if (!valid_tex_level_parameteriv_target(ctx, target, false))
+      return;
+
    texObj = _mesa_get_current_tex_object(ctx, target);
    if (!texObj)
       return;
@@ -1655,6 +2010,55 @@ _mesa_GetTextureLevelParameterfv(GLuint texture, GLint level,
    if (!texObj)
       return;
 
+   if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
+      return;
+
+   get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
+                             pname, &iparam, true);
+
+   *params = (GLfloat) iparam;
+}
+
+void GLAPIENTRY
+_mesa_GetTextureLevelParameterfvEXT(GLuint texture, GLenum target, GLint level,
+                                    GLenum pname, GLfloat *params)
+{
+   struct gl_texture_object *texObj;
+   GLint iparam;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glGetTextureLevelParameterfvEXT");
+   if (!texObj)
+      return;
+
+   if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
+      return;
+
+   get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
+                             pname, &iparam, true);
+
+   *params = (GLfloat) iparam;
+}
+
+void GLAPIENTRY
+_mesa_GetMultiTexLevelParameterfvEXT(GLenum texunit, GLenum target, GLint level,
+                                     GLenum pname, GLfloat *params)
+{
+   struct gl_texture_object *texObj;
+   GLint iparam;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   true,
+                                                   "glGetMultiTexLevelParameterfvEXT");
+   if (!texObj)
+      return;
+
+   if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
+      return;
+
    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
                              pname, &iparam, true);
 
@@ -1673,10 +2077,54 @@ _mesa_GetTextureLevelParameteriv(GLuint texture, GLint level,
    if (!texObj)
       return;
 
+   if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
+      return;
+
+   get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
+                             pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_GetTextureLevelParameterivEXT(GLuint texture, GLenum target, GLint level,
+                                    GLenum pname, GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glGetTextureLevelParameterivEXT");
+   if (!texObj)
+      return;
+
+   if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
+      return;
+
    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
                              pname, params, true);
 }
 
+void GLAPIENTRY
+_mesa_GetMultiTexLevelParameterivEXT(GLenum texunit, GLenum target, GLint level,
+                                     GLenum pname, GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   true,
+                                                   "glGetMultiTexLevelParameterivEXT");
+   if (!texObj)
+      return;
+
+   if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
+      return;
+
+   get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
+                             pname, params, true);
+}
+
+
 /**
  * This isn't exposed to the rest of the driver because it is a part of the
  * OpenGL API that is rarely used.
@@ -1704,12 +2152,13 @@ get_tex_parameterfv(struct gl_context *ctx,
          *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
          break;
       case GL_TEXTURE_BORDER_COLOR:
-         if (!_mesa_is_desktop_gl(ctx))
+         if (ctx->API == API_OPENGLES ||
+             !ctx->Extensions.ARB_texture_border_clamp)
             goto invalid_pname;
 
          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
             _mesa_update_state_locked(ctx);
-         if (_mesa_get_clamp_fragment_color(ctx)) {
+         if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
@@ -1787,7 +2236,7 @@ get_tex_parameterfv(struct gl_context *ctx,
          *params = (GLfloat) obj->DepthMode;
          break;
       case GL_DEPTH_STENCIL_TEXTURE_MODE:
-         if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_stencil_texturing)
+         if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
             goto invalid_pname;
          *params = (GLfloat)
             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
@@ -1845,33 +2294,32 @@ get_tex_parameterfv(struct gl_context *ctx,
          break;
 
       case GL_TEXTURE_IMMUTABLE_LEVELS:
-         if (_mesa_is_gles3(ctx) ||
-             (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
+         if (_mesa_is_gles3(ctx) || _mesa_has_texture_view(ctx))
             *params = (GLfloat) obj->ImmutableLevels;
          else
             goto invalid_pname;
          break;
 
       case GL_TEXTURE_VIEW_MIN_LEVEL:
-         if (!ctx->Extensions.ARB_texture_view)
+         if (!_mesa_has_texture_view(ctx))
             goto invalid_pname;
          *params = (GLfloat) obj->MinLevel;
          break;
 
       case GL_TEXTURE_VIEW_NUM_LEVELS:
-         if (!ctx->Extensions.ARB_texture_view)
+         if (!_mesa_has_texture_view(ctx))
             goto invalid_pname;
          *params = (GLfloat) obj->NumLevels;
          break;
 
       case GL_TEXTURE_VIEW_MIN_LAYER:
-         if (!ctx->Extensions.ARB_texture_view)
+         if (!_mesa_has_texture_view(ctx))
             goto invalid_pname;
          *params = (GLfloat) obj->MinLayer;
          break;
 
       case GL_TEXTURE_VIEW_NUM_LAYERS:
-         if (!ctx->Extensions.ARB_texture_view)
+         if (!_mesa_has_texture_view(ctx))
             goto invalid_pname;
          *params = (GLfloat) obj->NumLayers;
          break;
@@ -1888,6 +2336,24 @@ get_tex_parameterfv(struct gl_context *ctx,
          *params = (GLfloat) obj->Sampler.sRGBDecode;
          break;
 
+      case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
+         if (!ctx->Extensions.ARB_shader_image_load_store)
+            goto invalid_pname;
+         *params = (GLfloat) obj->ImageFormatCompatibilityType;
+         break;
+
+      case GL_TEXTURE_TARGET:
+         if (ctx->API != API_OPENGL_CORE)
+            goto invalid_pname;
+         *params = ENUM_TO_FLOAT(obj->Target);
+         break;
+
+      case GL_TEXTURE_TILING_EXT:
+         if (!ctx->Extensions.EXT_memory_object)
+            goto invalid_pname;
+         *params = ENUM_TO_FLOAT(obj->TextureTiling);
+         break;
+
       default:
          goto invalid_pname;
    }
@@ -1926,7 +2392,8 @@ get_tex_parameteriv(struct gl_context *ctx,
          *params = (GLint) obj->Sampler.WrapR;
          break;
       case GL_TEXTURE_BORDER_COLOR:
-         if (!_mesa_is_desktop_gl(ctx))
+         if (ctx->API == API_OPENGLES ||
+             !ctx->Extensions.ARB_texture_border_clamp)
             goto invalid_pname;
 
          {
@@ -2010,7 +2477,7 @@ get_tex_parameteriv(struct gl_context *ctx,
          *params = (GLint) obj->DepthMode;
          break;
       case GL_DEPTH_STENCIL_TEXTURE_MODE:
-         if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_stencil_texturing)
+         if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
             goto invalid_pname;
          *params = (GLint)
             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
@@ -2113,6 +2580,18 @@ get_tex_parameteriv(struct gl_context *ctx,
          *params = obj->ImageFormatCompatibilityType;
          break;
 
+      case GL_TEXTURE_TARGET:
+         if (ctx->API != API_OPENGL_CORE)
+            goto invalid_pname;
+         *params = (GLint) obj->Target;
+         break;
+
+      case GL_TEXTURE_TILING_EXT:
+         if (!ctx->Extensions.EXT_memory_object)
+            goto invalid_pname;
+         *params = (GLint) obj->TextureTiling;
+         break;
+
       default:
          goto invalid_pname;
    }
@@ -2141,37 +2620,16 @@ get_tex_parameterIiv(struct gl_context *ctx,
    }
 }
 
-static void
-get_tex_parameterIuiv(struct gl_context *ctx,
-                      struct gl_texture_object *obj,
-                      GLenum pname, GLuint *params, bool dsa)
-{
-   switch (pname) {
-   case GL_TEXTURE_BORDER_COLOR:
-      COPY_4V(params, obj->Sampler.BorderColor.i);
-      break;
-   default:
-      {
-         GLint ip[4];
-         get_tex_parameteriv(ctx, obj, pname, ip, dsa);
-         params[0] = ip[0];
-         if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
-             pname == GL_TEXTURE_CROP_RECT_OES) {
-            params[1] = ip[1];
-            params[2] = ip[2];
-            params[3] = ip[3];
-         }
-      }
-   }
-}
-
 void GLAPIENTRY
 _mesa_GetTexParameterfv(GLenum target, GLenum pname, GLfloat *params)
 {
    struct gl_texture_object *obj;
    GET_CURRENT_CONTEXT(ctx);
 
-   obj = get_texobj_by_target(ctx, target, GL_TRUE);
+   obj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                ctx->Texture.CurrentUnit,
+                                                false,
+                                                "glGetTexParameterfv");
    if (!obj)
       return;
 
@@ -2184,7 +2642,10 @@ _mesa_GetTexParameteriv(GLenum target, GLenum pname, GLint *params)
    struct gl_texture_object *obj;
    GET_CURRENT_CONTEXT(ctx);
 
-   obj = get_texobj_by_target(ctx, target, GL_TRUE);
+   obj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                ctx->Texture.CurrentUnit,
+                                                false,
+                                                "glGetTexParameteriv");
    if (!obj)
       return;
 
@@ -2198,7 +2659,10 @@ _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_TRUE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                ctx->Texture.CurrentUnit,
+                                                false,
+                                                "glGetTexParameterIiv");
    if (!texObj)
       return;
 
@@ -2213,13 +2677,54 @@ _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_target(ctx, target, GL_TRUE);
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                ctx->Texture.CurrentUnit,
+                                                false,
+                                                "glGetTexParameterIuiv");
    if (!texObj)
       return;
 
-   get_tex_parameterIuiv(ctx, texObj, pname, params, false);
+   get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, false);
 }
 
+void GLAPIENTRY
+_mesa_GetTextureParameterfvEXT(GLuint texture, GLenum target, GLenum pname, GLfloat *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glGetTextureParameterfvEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTextureParameterfvEXT");
+      return;
+   }
+
+   get_tex_parameterfv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_GetMultiTexParameterfvEXT(GLenum texunit, GLenum target, GLenum pname, GLfloat *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   false,
+                                                   "glGetMultiTexParameterfvEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMultiTexParameterfvEXT");
+      return;
+   }
+   get_tex_parameterfv(ctx, texObj, pname, params, true);
+}
 
 void GLAPIENTRY
 _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
@@ -2227,30 +2732,60 @@ _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
    struct gl_texture_object *obj;
    GET_CURRENT_CONTEXT(ctx);
 
-   obj = get_texobj_by_name(ctx, texture, GL_TRUE);
-   if (!obj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetTextureParameterfv(texture)");
+   obj = get_texobj_by_name(ctx, texture, "glGetTextureParameterfv");
+   if (!obj)
       return;
-   }
 
    get_tex_parameterfv(ctx, obj, pname, params, true);
 }
 
+void GLAPIENTRY
+_mesa_GetTextureParameterivEXT(GLuint texture, GLenum target, GLenum pname, GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glGetTextureParameterivEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTextureParameterivEXT");
+      return;
+   }
+   get_tex_parameteriv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_GetMultiTexParameterivEXT(GLenum texunit, GLenum target, GLenum pname, GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   false,
+                                                   "glGetMultiTexParameterivEXT");
+   if (!texObj)
+      return;
+
+   if (!is_texparameteri_target_valid(texObj->Target)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMultiTexParameterivEXT");
+      return;
+   }
+   get_tex_parameteriv(ctx, texObj, pname, params, true);
+}
+
 void GLAPIENTRY
 _mesa_GetTextureParameteriv(GLuint texture, GLenum pname, GLint *params)
 {
    struct gl_texture_object *obj;
    GET_CURRENT_CONTEXT(ctx);
 
-   obj = get_texobj_by_name(ctx, texture, GL_TRUE);
-   if (!obj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetTextureParameteriv(texture)");
+   obj = get_texobj_by_name(ctx, texture, "glGetTextureParameteriv");
+   if (!obj)
       return;
-   }
 
    get_tex_parameteriv(ctx, obj, pname, params, true);
 }
@@ -2261,17 +2796,44 @@ _mesa_GetTextureParameterIiv(GLuint texture, GLenum pname, GLint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_TRUE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetTextureParameterIiv(texture)");
+   texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIiv");
+   if (!texObj)
       return;
-   }
 
    get_tex_parameterIiv(ctx, texObj, pname, params, true);
 }
 
+void GLAPIENTRY
+_mesa_GetTextureParameterIivEXT(GLuint texture, GLenum target, GLenum pname, GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glGetTextureParameterIivEXT");
+   if (!texObj)
+      return;
+
+
+   get_tex_parameterIiv(ctx, texObj, pname, params, true);
+}
+
+void GLAPIENTRY
+_mesa_GetMultiTexParameterIivEXT(GLenum texunit, GLenum target, GLenum pname,
+                                 GLint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   true,
+                                                   "glGetMultiTexParameterIiv");
+   if (!texObj)
+      return;
+
+   get_tex_parameterIiv(ctx, texObj, pname, params, true);
+}
 
 void GLAPIENTRY
 _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
@@ -2279,13 +2841,41 @@ _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
    struct gl_texture_object *texObj;
    GET_CURRENT_CONTEXT(ctx);
 
-   texObj = get_texobj_by_name(ctx, texture, GL_TRUE);
-   if (!texObj) {
-      /* User passed a non-generated name. */
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetTextureParameterIuiv(texture)");
+   texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIuiv");
+   if (!texObj)
+      return;
+
+   get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
+}
+
+void GLAPIENTRY
+_mesa_GetTextureParameterIuivEXT(GLuint texture, GLenum target, GLenum pname,
+                                 GLuint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
+                                           "glGetTextureParameterIuvEXT");
+   if (!texObj)
+      return;
+
+   get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
+}
+
+void GLAPIENTRY
+_mesa_GetMultiTexParameterIuivEXT(GLenum texunit, GLenum target, GLenum pname,
+                               GLuint *params)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
+                                                   texunit - GL_TEXTURE0,
+                                                   true,
+                                                   "glGetMultiTexParameterIuiv");
+   if (!texObj)
       return;
-   }
 
-   get_tex_parameterIuiv(ctx, texObj, pname, params, true);
+   get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
 }