commit 010a464878f32daed863edee3fc6ad21920d605b
author Alexis Hetu <sugoi@google.com> Tue Jul 18 14:33:04 2017 -0400
committer Alexis Hétu <sugoi@google.com> Wed Jul 19 18:23:42 2017 +0000
tree 72e964e62232ed02bc3844ae494cb6ad1a923212
parent 14534b56bbd0d6cb9c6d01ab6f8bbfec4f3e93cc

Add texture filtering precision hint

A new extension will be added to SwiftShader in order to allow
Chromium to trigger high precision filtering when necessary.
This extension is documented in:
extensions/CHROMIUM_texture_filtering_hint.txt

Bug swiftshader:76

Change-Id: I7c5b5c5fd01afbd7079e7949ecbd9c18fc539f2b
Reviewed-on: https://swiftshader-review.googlesource.com/10708
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

src/Renderer/Sampler.cpp

diff --git a/src/Renderer/Sampler.cpp b/src/Renderer/Sampler.cpp
index e2447e0..7d7d47c 100644
--- a/src/Renderer/Sampler.cpp
+++ b/src/Renderer/Sampler.cpp
@@ -60,6 +60,7 @@
 		mipmapFilterState = MIPMAP_NONE;
 		sRGB = false;
 		gather = false;
+		highPrecisionFiltering = false;
 
 		swizzleR = SWIZZLE_RED;
 		swizzleG = SWIZZLE_GREEN;
@@ -97,6 +98,7 @@
 			state.swizzleG = swizzleG;
 			state.swizzleB = swizzleB;
 			state.swizzleA = swizzleA;
+			state.highPrecisionFiltering = highPrecisionFiltering;
 
 			#if PERF_PROFILE
 				state.compressedFormat = Surface::isCompressed(externalTextureFormat);
@@ -298,6 +300,11 @@
 		texture.maxAnisotropy = maxAnisotropy;
 	}
 
+	void Sampler::setHighPrecisionFiltering(bool highPrecisionFiltering)
+	{
+		this->highPrecisionFiltering = highPrecisionFiltering;
+	}
+
 	void Sampler::setSwizzleR(SwizzleType swizzleR)
 	{
 		this->swizzleR = swizzleR;