commit 7375d6bab2ee8b02da276597ed4d60f22f54eb89
author joshualitt <joshualitt@chromium.org> Fri Aug 07 13:36:44 2015 -0700
committer Commit bot <commit-bot@chromium.org> Fri Aug 07 13:36:44 2015 -0700
tree fee12452799fdbf26663b4f6f5e0c456c0e6df1d
parent 0df0e43488dc785815d3234d9bd60bad91532f98

fixup precision with configurable atlas

BUG=skia:

Review URL: https://codereview.chromium.org/1276383003

src/gpu/effects/GrBitmapTextGeoProc.cpp

diff --git a/src/gpu/effects/GrBitmapTextGeoProc.cpp b/src/gpu/effects/GrBitmapTextGeoProc.cpp
index 9496dbf..d83cf55 100644
--- a/src/gpu/effects/GrBitmapTextGeoProc.cpp
+++ b/src/gpu/effects/GrBitmapTextGeoProc.cpp
@@ -31,15 +31,15 @@
         // compute numbers to be hardcoded to convert texture coordinates from int to float
         SkASSERT(cte.numTextures() == 1);
         GrTexture* atlas = cte.textureAccess(0).getTexture();
-        SkASSERT(atlas);
+        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
         SkScalar recipWidth = 1.0f / atlas->width();
         SkScalar recipHeight = 1.0f / atlas->height();
 
         GrGLVertToFrag v(kVec2f_GrSLType);
         pb->addVarying("TextureCoords", &v);
         vsBuilder->codeAppendf("%s = vec2(%.*f, %.*f) * %s;", v.vsOut(),
-                               SK_FLT_DECIMAL_DIG, recipWidth,
-                               SK_FLT_DECIMAL_DIG, recipHeight,
+                               GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipWidth,
+                               GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipHeight,
                                cte.inTextureCoords()->fName);
 
         // Setup pass through color