Use uint16s for texture coordinates when rendering text.

src/gpu/effects/GrBitmapTextGeoProc.cpp

Index: src/gpu/effects/GrBitmapTextGeoProc.cpp
diff --git a/src/gpu/effects/GrBitmapTextGeoProc.cpp b/src/gpu/effects/GrBitmapTextGeoProc.cpp
index 2487b65adac7aba1efd966016e3d00aca45222af..13b9dba9299941b9a5ce6260dd26d0e0842db2b4 100644
--- a/src/gpu/effects/GrBitmapTextGeoProc.cpp
+++ b/src/gpu/effects/GrBitmapTextGeoProc.cpp
@@ -37,7 +37,8 @@ public:
 
         GrGLVertToFrag v(kVec2f_GrSLType);
         pb->addVarying("TextureCoords", &v);

[robertphillips, 2015/02/13 16:10:42]

Don't we have #defines for these ?
Also comment ?

[jvanverth1, 2015/02/13 19:58:56]

Done.

-        vsBuilder->codeAppendf("%s = %s;", v.vsOut(), cte.inTextureCoords()->fName);
+        vsBuilder->codeAppendf("%s = vec2(0.0009765625, 0.00048828125)*%s;", v.vsOut(),
+                               cte.inTextureCoords()->fName);
 
         // Setup pass through color
         this->setupColorPassThrough(pb, local.fInputColorType, args.fOutputColor, cte.inColor(),
@@ -122,7 +123,7 @@ GrBitmapTextGeoProc::GrBitmapTextGeoProc(GrColor color, GrTexture* texture,
         this->setHasVertexColor();
     }
     fInTextureCoords = &this->addVertexAttrib(Attribute("inTextureCoords",
-                                                        kVec2f_GrVertexAttribType));
+                                                        kVec2s_GrVertexAttribType));
     this->addTextureAccess(&fTextureAccess);
 }