Replaced some hardcoded constants

Replaced values that matched with
FRAGMENT_UNIFORM_VECTORS or
VERTEX_UNIFORM_VECTORS where appropriate.

Change-Id: I64a72b6f30a8a553ea44c268e757ee529cff59fd
Reviewed-on: https://swiftshader-review.googlesource.com/3672
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
diff --git a/src/Renderer/PixelProcessor.cpp b/src/Renderer/PixelProcessor.cpp
index afbae78..146888d 100644
--- a/src/Renderer/PixelProcessor.cpp
+++ b/src/Renderer/PixelProcessor.cpp
@@ -75,7 +75,7 @@
 
 	void PixelProcessor::setFloatConstant(unsigned int index, const float value[4])
 	{
-		if(index < 224)
+		if(index < FRAGMENT_UNIFORM_VECTORS)
 		{
 			c[index][0] = value[0];
 			c[index][1] = value[1];