mesa: do version checking for GL 3.x queries

2 files changed, 74 insertions, 8 deletions

diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index f89a798f1b6..e3015cd6033 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -63,12 +63,22 @@
       goto invalid_enum_error;                                         \
    }
 
+/*
+ * Check GL version.
+ */
+#define CHECK_VERSION(VERSION)                                         \
+   if (version < VERSION) {                                            \
+      goto invalid_enum_error;                                         \
+   }
+
 
 void GLAPIENTRY
 _mesa_GetBooleanv( GLenum pname, GLboolean *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
@@ -1943,24 +1953,31 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          params[0] = INT_TO_BOOLEAN(ctx->Const.MaxTransformFeedbackSeparateComponents);
          break;
       case GL_NUM_EXTENSIONS:
+         CHECK_VERSION(30);
          params[0] = INT_TO_BOOLEAN(_mesa_get_extension_count(ctx));
          break;
       case GL_MAJOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = INT_TO_BOOLEAN(ctx->VersionMajor);
          break;
       case GL_MINOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = INT_TO_BOOLEAN(ctx->VersionMinor);
          break;
       case GL_CONTEXT_FLAGS:
+         CHECK_VERSION(30);
          params[0] = INT_TO_BOOLEAN(ctx->Const.ContextFlags);
          break;
       case GL_PRIMITIVE_RESTART:
+         CHECK_VERSION(31);
          params[0] = ctx->Array.PrimitiveRestart;
          break;
       case GL_PRIMITIVE_RESTART_INDEX:
+         CHECK_VERSION(31);
          params[0] = INT_TO_BOOLEAN(ctx->Array.RestartIndex);
          break;
       case GL_CONTEXT_PROFILE_MASK:
+         CHECK_VERSION(32);
          params[0] = INT_TO_BOOLEAN(ctx->Const.ProfileMask);
          break;
       default:
@@ -1976,7 +1993,9 @@ void GLAPIENTRY
 _mesa_GetFloatv( GLenum pname, GLfloat *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
@@ -3851,24 +3870,31 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          params[0] = (GLfloat)(ctx->Const.MaxTransformFeedbackSeparateComponents);
          break;
       case GL_NUM_EXTENSIONS:
+         CHECK_VERSION(30);
          params[0] = (GLfloat)(_mesa_get_extension_count(ctx));
          break;
       case GL_MAJOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = (GLfloat)(ctx->VersionMajor);
          break;
       case GL_MINOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = (GLfloat)(ctx->VersionMinor);
          break;
       case GL_CONTEXT_FLAGS:
+         CHECK_VERSION(30);
          params[0] = (GLfloat)(ctx->Const.ContextFlags);
          break;
       case GL_PRIMITIVE_RESTART:
+         CHECK_VERSION(31);
          params[0] = BOOLEAN_TO_FLOAT(ctx->Array.PrimitiveRestart);
          break;
       case GL_PRIMITIVE_RESTART_INDEX:
+         CHECK_VERSION(31);
          params[0] = (GLfloat)(ctx->Array.RestartIndex);
          break;
       case GL_CONTEXT_PROFILE_MASK:
+         CHECK_VERSION(32);
          params[0] = (GLfloat)(ctx->Const.ProfileMask);
          break;
       default:
@@ -3884,7 +3910,9 @@ void GLAPIENTRY
 _mesa_GetIntegerv( GLenum pname, GLint *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
@@ -5759,24 +5787,31 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          params[0] = ctx->Const.MaxTransformFeedbackSeparateComponents;
          break;
       case GL_NUM_EXTENSIONS:
+         CHECK_VERSION(30);
          params[0] = _mesa_get_extension_count(ctx);
          break;
       case GL_MAJOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = ctx->VersionMajor;
          break;
       case GL_MINOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = ctx->VersionMinor;
          break;
       case GL_CONTEXT_FLAGS:
+         CHECK_VERSION(30);
          params[0] = ctx->Const.ContextFlags;
          break;
       case GL_PRIMITIVE_RESTART:
+         CHECK_VERSION(31);
          params[0] = BOOLEAN_TO_INT(ctx->Array.PrimitiveRestart);
          break;
       case GL_PRIMITIVE_RESTART_INDEX:
+         CHECK_VERSION(31);
          params[0] = ctx->Array.RestartIndex;
          break;
       case GL_CONTEXT_PROFILE_MASK:
+         CHECK_VERSION(32);
          params[0] = ctx->Const.ProfileMask;
          break;
       default:
@@ -5793,7 +5828,9 @@ void GLAPIENTRY
 _mesa_GetInteger64v( GLenum pname, GLint64 *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
@@ -7668,24 +7705,31 @@ _mesa_GetInteger64v( GLenum pname, GLint64 *params )
          params[0] = (GLint64)(ctx->Const.MaxTransformFeedbackSeparateComponents);
          break;
       case GL_NUM_EXTENSIONS:
+         CHECK_VERSION(30);
          params[0] = (GLint64)(_mesa_get_extension_count(ctx));
          break;
       case GL_MAJOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = (GLint64)(ctx->VersionMajor);
          break;
       case GL_MINOR_VERSION:
+         CHECK_VERSION(30);
          params[0] = (GLint64)(ctx->VersionMinor);
          break;
       case GL_CONTEXT_FLAGS:
+         CHECK_VERSION(30);
          params[0] = (GLint64)(ctx->Const.ContextFlags);
          break;
       case GL_PRIMITIVE_RESTART:
+         CHECK_VERSION(31);
          params[0] = BOOLEAN_TO_INT64(ctx->Array.PrimitiveRestart);
          break;
       case GL_PRIMITIVE_RESTART_INDEX:
+         CHECK_VERSION(31);
          params[0] = (GLint64)(ctx->Array.RestartIndex);
          break;
       case GL_CONTEXT_PROFILE_MASK:
+         CHECK_VERSION(32);
          params[0] = (GLint64)(ctx->Const.ProfileMask);
          break;
       default:
@@ -7725,7 +7769,9 @@ void GLAPIENTRY
 _mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
@@ -7787,7 +7833,9 @@ void GLAPIENTRY
 _mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
@@ -7850,7 +7898,9 @@ void GLAPIENTRY
 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
 {
    GET_CURRENT_CONTEXT(ctx);
+   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
+   (void) version;
 
    if (!params)
       return;
diff --git a/src/mesa/main/get_gen.py b/src/mesa/main/get_gen.py
index 0279ec9d1d3..21f7750dbd7 100644
--- a/src/mesa/main/get_gen.py
+++ b/src/mesa/main/get_gen.py
@@ -1140,20 +1140,24 @@ StateVars = [
 	  NoState, ["EXT_transform_feedback"] ),
 
 	# GL 3.0
-	( "GL_NUM_EXTENSIONS", GLint, ["_mesa_get_extension_count(ctx)"], "", NoState, NoExt ),
-	( "GL_MAJOR_VERSION", GLint, ["ctx->VersionMajor"], "", NoState, NoExt ),
-	( "GL_MINOR_VERSION", GLint, ["ctx->VersionMinor"], "", NoState, NoExt ),
-	( "GL_CONTEXT_FLAGS", GLint, ["ctx->Const.ContextFlags"], "", NoState, NoExt ),
+	( "GL_NUM_EXTENSIONS", GLint,
+	  ["_mesa_get_extension_count(ctx)"], "", NoState, "30" ),
+	( "GL_MAJOR_VERSION", GLint,
+	  ["ctx->VersionMajor"], "", NoState, "30" ),
+	( "GL_MINOR_VERSION", GLint,
+	  ["ctx->VersionMinor"], "", NoState, "30" ),
+	( "GL_CONTEXT_FLAGS", GLint,
+	  ["ctx->Const.ContextFlags"], "", NoState, "30" ),
 
     # GL 3.1
     ( "GL_PRIMITIVE_RESTART", GLboolean,
-      ["ctx->Array.PrimitiveRestart"], "", NoState, NoExt ),
+      ["ctx->Array.PrimitiveRestart"], "", NoState, "31" ),
     ( "GL_PRIMITIVE_RESTART_INDEX", GLint,
-      ["ctx->Array.RestartIndex"], "", NoState, NoExt ),
+      ["ctx->Array.RestartIndex"], "", NoState, "31" ),
  
 	# GL 3.2
 	( "GL_CONTEXT_PROFILE_MASK", GLint, ["ctx->Const.ProfileMask"], "",
-	  NoState, NoExt )
+	  NoState, "32" )
 
 ]
 
@@ -1257,7 +1261,9 @@ def EmitGetFunction(stateVars, returnType, indexed):
 		print "_mesa_%s( GLenum pname, %s *params )" % (function, strType)
 	print "{"
 	print "   GET_CURRENT_CONTEXT(ctx);"
+	print "   const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;"
 	print "   ASSERT_OUTSIDE_BEGIN_END(ctx);"
+	print "   (void) version;"
 	print ""
 	print "   if (!params)"
 	print "      return;"
@@ -1280,7 +1286,9 @@ def EmitGetFunction(stateVars, returnType, indexed):
 
 		# Do extension check
 		if extensions:
-			if len(extensions) == 1:
+			if extensions == "30" or extensions == "31" or extensions == "32":
+				print ('         CHECK_VERSION(%s);' % extensions)
+			elif len(extensions) == 1:
 				print ('         CHECK_EXT1(%s);' % extensions[0])
 			elif len(extensions) == 2:
 				print ('         CHECK_EXT2(%s, %s);' % (extensions[0], extensions[1]))
@@ -1404,6 +1412,14 @@ def EmitHeader():
       goto invalid_enum_error;                                         \\
    }
 
+/*
+ * Check GL version.
+ */
+#define CHECK_VERSION(VERSION)                                         \\
+   if (version < VERSION) {                                            \\
+      goto invalid_enum_error;                                         \\
+   }
+
 """
 	return