Stop emitting the "#version missing" warning, and hook up the existing "suppress warnings" to a command-line option (-w).

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23952 e7fa87d3-cd2b-0410-9028-fcbf551c1848

StandAlone/StandAlone.cpp

@@ -62,6 +62,7 @@ enum TOptions {
     EOptionMultiThreaded      = 0x040,
     EOptionDumpConfig         = 0x080,
     EOptionDumpReflection     = 0x100,
+    EOptionSuppressWarnings   = 0x200,
 };
 
 //
@@ -91,7 +92,7 @@ ShBinding FixedAttributeBindings[] = {
 ShBindingTable FixedAttributeTable = { 3, FixedAttributeBindings };
 
 EShLanguage FindLanguage(const std::string& name);
-bool CompileFile(const char *fileName, ShHandle, int options);
+bool CompileFile(const char *fileName, ShHandle);
 void usage();
 void FreeFileData(char** data);
 char** ReadFileData(const char* fileName);
@@ -478,9 +479,12 @@ bool ProcessArguments(int argc, char* argv[])
                 break;
             case 't':
                 #ifdef _WIN32
-                Options |= EOptionMultiThreaded;
+                    Options |= EOptionMultiThreaded;
                 #endif
                 break;
+            case 'w':
+                Options |= EOptionSuppressWarnings;
+                break;
             default:
                 return false;
             }
@@ -496,6 +500,16 @@ bool ProcessArguments(int argc, char* argv[])
     return true;
 }
 
+void SetMessageOptions(EShMessages& messages)
+{
+    if (Options & EOptionRelaxedErrors)
+        messages = (EShMessages)(messages | EShMsgRelaxedErrors);
+    if (Options & EOptionIntermediate)
+        messages = (EShMessages)(messages | EShMsgAST);
+    if (Options & EOptionSuppressWarnings)
+        messages = (EShMessages)(messages | EShMsgSuppressWarnings);
+}
+
 // Thread entry point, for non-linking asynchronous mode.
 unsigned int
 #ifdef _WIN32
@@ -509,7 +523,7 @@ CompileShaders(void*)
         if (compiler == 0)
             return false;
 
-        CompileFile(workItem->name.c_str(), compiler, Options);
+        CompileFile(workItem->name.c_str(), compiler);
 
         if (! (Options & EOptionSuppressInfolog))
             workItem->results = ShGetInfoLog(compiler);
@@ -532,10 +546,7 @@ void CompileAndLinkShaders()
     std::list<glslang::TShader*> shaders;
 
     EShMessages messages = EShMsgDefault;
-    if (Options & EOptionRelaxedErrors)
-        messages = (EShMessages)(messages | EShMsgRelaxedErrors);
-    if (Options & EOptionIntermediate)
-        messages = (EShMessages)(messages | EShMsgAST);
+    SetMessageOptions(messages);
 
     //
     // Per-shader processing...
@@ -713,7 +724,7 @@ EShLanguage FindLanguage(const std::string& name)
 // Read a file's data into a string, and compile it using the old interface ShCompile, 
 // for non-linkable results.
 //
-bool CompileFile(const char *fileName, ShHandle compiler, int Options)
+bool CompileFile(const char *fileName, ShHandle compiler)
 {
     int ret;
     char** shaderStrings = ReadFileData(fileName);
@@ -732,10 +743,7 @@ bool CompileFile(const char *fileName, ShHandle compiler, int Options)
         return false;
 
     EShMessages messages = EShMsgDefault;
-    if (Options & EOptionRelaxedErrors)
-        messages = (EShMessages)(messages | EShMsgRelaxedErrors);
-    if (Options & EOptionIntermediate)
-        messages = (EShMessages)(messages | EShMsgAST);
+    SetMessageOptions(messages);
     
     for (int i = 0; i < ((Options & EOptionMemoryLeakMode) ? 100 : 1); ++i) {
         for (int j = 0; j < ((Options & EOptionMemoryLeakMode) ? 100 : 1); ++j) {
@@ -777,13 +785,14 @@ void usage()
            "To get other information, use one of the following options:\n"
            "-c: configuration dump; use to create default configuration file (redirect to a .conf file)\n"
            "-i: intermediate tree (glslang AST) is printed out\n"
-           "-d: delay exit\n"
            "-l: link validation of all input files\n"
            "-m: memory leak mode\n"
            "-q: dump reflection query database\n"
            "-r: relaxed semantic error-checking mode\n"
            "-s: silent mode\n"
-           "-t: multi-threaded mode\n");
+           "-t: multi-threaded mode\n"
+           "-w: suppress warnings (except as required by #extension : warn)\n"
+           );
 }
 
 #ifndef _WIN32

Test/130.frag

@@ -37,3 +37,10 @@ in vec4 gl_Color;
 flat in vec4 gl_Color;
 flat in vec4 gl_Color[2];  // ERROR, array 
 vec4 gl_Color;             // ERROR, storage
+
+#extension GL_ARB_texture_gather : warn
+
+void bar()
+{
+    vec4 s = textureGather(sampC, vec3(0.2));
+}

Test/baseResults/130.frag.out

@@ -3,7 +3,9 @@ ERROR: 0:25: 'texture gather function' : not supported for this version or the e
 ERROR: 0:35: 'redeclaration' : cannot change the type of gl_Color
 ERROR: 0:38: 'gl_Color' : redeclaring non-array as array 
 ERROR: 0:39: 'redeclaration' : cannot change storage, memory, or auxiliary qualification of gl_Color
-ERROR: 4 compilation errors.  No code generated.
+ERROR: 0:43: 'bar' : function already has a body 
+WARNING: 0:45: extension GL_ARB_texture_gather is being used for texture gather function
+ERROR: 5 compilation errors.  No code generated.
 
 ERROR: node is still EOpNull!
 0:16  Function Definition: main( (void)
@@ -40,6 +42,18 @@ ERROR: node is still EOpNull!
 0:32              0.200000
 0:32              0.200000
 0:32              0.200000
+0:43  Function Definition: bar( (void)
+0:43    Function Parameters: 
+0:45    Sequence
+0:45      Sequence
+0:45        move second child to first child (4-component vector of float)
+0:45          's' (4-component vector of float)
+0:45          Function Call: textureGather(sC1;vf3; (4-component vector of float)
+0:45            'sampC' (uniform samplerCube)
+0:45            Constant:
+0:45              0.200000
+0:45              0.200000
+0:45              0.200000
 0:?   Linker Objects
 0:?     'a' (3-component vector of float)
 0:?     'b' (float)

Test/baseResults/cppComplexExpr.vert.out

@@ -1,4 +1,3 @@
-WARNING: #version: statement missing; use #version on first line of shader
 ERROR: 0:46: 'xyxwx' : illegal vector field selection 
 ERROR: 0:46: 'xyxwx' : illegal vector field selection 
 ERROR: 2 compilation errors.  No code generated.

Test/baseResults/empty.frag.out

@@ -1,11 +1,9 @@
 empty.frag
-WARNING: #version: statement missing; use #version on first line of shader
 
 0:? Sequence
 0:?   Linker Objects
 
 empty2.frag
-WARNING: #version: statement missing; use #version on first line of shader
 
 0:? Sequence
 0:?   Linker Objects

Test/baseResults/errors.frag.out

@@ -1,4 +1,3 @@
-WARNING: #version: statement missing; use #version on first line of shader
 ERROR: 0:1: 'main' : function cannot take any parameter(s) 
 ERROR: 0:1: 'int' :  main function cannot return a value
 ERROR: 2 compilation errors.  No code generated.

Test/baseResults/pointCoord.frag.out

@@ -1,4 +1,3 @@
-WARNING: #version: statement missing; use #version on first line of shader
 0:? Sequence
 0:5  Function Definition: main( (void)
 0:5    Function Parameters: 

glslang/MachineIndependent/ShaderLang.cpp

@@ -296,7 +296,7 @@ bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNo
     // Get a good version...
     if (version == 0) {
         version = defaultVersion;
-        infoSink.info.message(EPrefixWarning, "#version: statement missing; use #version on first line of shader");
+        // infoSink.info.message(EPrefixWarning, "#version: statement missing; use #version on first line of shader");
     }
 
     // Get a good profile...