1 files changed, 22 insertions, 0 deletions
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp
index 52b8de8365..8790b1ed7d 100755
--- a/indra/llrender/llglslshader.cpp
+++ b/indra/llrender/llglslshader.cpp
@@ -1278,6 +1278,28 @@ void LLGLSLShader::uniformMatrix4fv(U32 index, U32 count, GLboolean transpose, c
     }
 }
 
+void LLGLSLShader::uniform1b(U32 index, GLboolean x)
+{
+	if (mProgramObject > 0)
+	{
+		if (mUniform.size() <= index)
+		{
+			UNIFORM_ERRS << "Uniform index out of bounds." << LL_ENDL;
+			return;
+		}
+
+		if (mUniform[index] >= 0)
+		{
+			std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+			if (iter == mValue.end() || iter->second.mV[0] != x)
+			{
+				glUniform1iARB(mUniform[index], x);
+				mValue[mUniform[index]] = LLVector4(x, 0.f, 0.f, 0.f);
+			}
+		}
+	}
+}
+
 GLint LLGLSLShader::getUniformLocation(const LLStaticHashedString& uniform)
 {
     GLint ret = -1;