Fix potentially uninitialized variables.

src/OpenGL/libGLESv2/Context.cpp

@@ -1439,17 +1439,10 @@ void Context::endQuery(GLenum target)
 
     switch(target)
     {
-    case GL_ANY_SAMPLES_PASSED_EXT: 
-        qType = QUERY_ANY_SAMPLES_PASSED; 
-        break;
-    case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT: 
-        qType = QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE; 
-        break;
-    case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
-        qType = QUERY_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN;
-        break;
-    default: 
-        ASSERT(false);
+    case GL_ANY_SAMPLES_PASSED_EXT:                qType = QUERY_ANY_SAMPLES_PASSED;                    break;
+    case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:   qType = QUERY_ANY_SAMPLES_PASSED_CONSERVATIVE;       break;
+    case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: qType = QUERY_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN; break;
+    default: UNREACHABLE(target); return;
     }
 
     Query *queryObject = mState.activeQuery[qType];

src/OpenGL/libGLESv2/libGLESv2.cpp

@@ -2989,7 +2989,7 @@ void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenu
 			return error(GL_INVALID_ENUM);
 		}
 
-		GLenum attachmentObjectType;   // Type category
+		GLenum attachmentObjectType = GL_NONE;   // Type category
 		if(attachmentType == GL_NONE || attachmentType == GL_RENDERBUFFER)
 		{
 			attachmentObjectType = attachmentType;

src/Shader/PixelPipeline.cpp

@@ -1348,8 +1348,7 @@ namespace sw
 		case Shader::PARAMETER_TEXTURE:       reg = &r.ts[i]; break;
 		case Shader::PARAMETER_VOID:          return r.rs[0]; // Dummy
 		case Shader::PARAMETER_FLOAT4LITERAL: return r.rs[0]; // Dummy
-		default:
-			ASSERT(false);
+		default: ASSERT(false); return r.rs[0];
 		}
 
 		const Short4 &x = (*reg)[(src.swizzle >> 0) & 0x3];

src/Shader/Shader.cpp

@@ -1111,7 +1111,7 @@ namespace sw
 		majorVersion = (unsigned char)((token[0] & 0x0000FF00) >> 8);
 		shaderType = (ShaderType)((token[0] & 0xFFFF0000) >> 16);
 
-		int length;
+		int length = 0;
 
 		if(shaderType == SHADER_VERTEX)
 		{