Min LOD and Max LOD sampler parameters

Plumbing to send Min LOD and Max LOD from the Sampler
object in the Context to the Renderer's texture's state.

Change-Id: I6831a8e17d67e745d12a78176d566750d971ec76
Reviewed-on: https://swiftshader-review.googlesource.com/5510
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Meng-Lin Wu <marleymoo@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/Renderer/Renderer.cpp

diff --git a/src/Renderer/Renderer.cpp b/src/Renderer/Renderer.cpp
index 681ce37..df6a2c7 100644
--- a/src/Renderer/Renderer.cpp
+++ b/src/Renderer/Renderer.cpp
@@ -2371,6 +2371,30 @@
 		}
 	}
 
+	void Renderer::setMinLod(SamplerType type, int sampler, float minLod)
+	{
+		if(type == SAMPLER_PIXEL)
+		{
+			PixelProcessor::setMinLod(sampler, minLod);
+		}
+		else
+		{
+			VertexProcessor::setMinLod(sampler, minLod);
+		}
+	}
+
+	void Renderer::setMaxLod(SamplerType type, int sampler, float maxLod)
+	{
+		if(type == SAMPLER_PIXEL)
+		{
+			PixelProcessor::setMaxLod(sampler, maxLod);
+		}
+		else
+		{
+			VertexProcessor::setMaxLod(sampler, maxLod);
+		}
+	}
+
 	void Renderer::setPointSpriteEnable(bool pointSpriteEnable)
 	{
 		context->setPointSpriteEnable(pointSpriteEnable);