Switch atlas clients over to using absolute texture coordinates (take 2)

This is a prerequisite for being able to resize the atlas with impunity.

Change-Id: Iccc9c7ced43f38a7d8483a7bd12a458d59a3453a
Reviewed-on: https://skia-review.googlesource.com/38362
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrShaderVar.cpp b/src/gpu/GrShaderVar.cpp
index e6d774c..09e98f8 100644
--- a/src/gpu/GrShaderVar.cpp
+++ b/src/gpu/GrShaderVar.cpp
@@ -99,18 +99,18 @@
     if (this->isArray()) {
         if (this->isUnsizedArray()) {
             out->appendf("%s %s[]",
-                         GrGLSLTypeString(effectiveType),
+                         GrGLSLTypeString(shaderCaps, effectiveType),
                          this->getName().c_str());
         } else {
             SkASSERT(this->getArrayCount() > 0);
             out->appendf("%s %s[%d]",
-                         GrGLSLTypeString(effectiveType),
+                         GrGLSLTypeString(shaderCaps, effectiveType),
                          this->getName().c_str(),
                          this->getArrayCount());
         }
     } else {
         out->appendf("%s %s",
-                     GrGLSLTypeString(effectiveType),
+                     GrGLSLTypeString(shaderCaps, effectiveType),
                      this->getName().c_str());
     }
 }
diff --git a/src/gpu/ccpr/GrCCPRPathProcessor.cpp b/src/gpu/ccpr/GrCCPRPathProcessor.cpp
index 1292553..54ffb9b 100644
--- a/src/gpu/ccpr/GrCCPRPathProcessor.cpp
+++ b/src/gpu/ccpr/GrCCPRPathProcessor.cpp
@@ -56,6 +56,7 @@
     this->addInstanceAttrib("view_matrix", kVec4f_GrVertexAttribType, kHigh_GrSLPrecision);
     this->addInstanceAttrib("view_translate", kVec2f_GrVertexAttribType, kHigh_GrSLPrecision);
     // FIXME: this could be a vector of two shorts if it were supported by Ganesh.
+    // Note: this should be doable now with kVec2us_uint_GrVertexAttribType
     this->addInstanceAttrib("atlas_offset", kVec2i_GrVertexAttribType, kHigh_GrSLPrecision);
     this->addInstanceAttrib("color", kVec4ub_GrVertexAttribType, kLow_GrSLPrecision);
 
diff --git a/src/gpu/effects/GrBitmapTextGeoProc.cpp b/src/gpu/effects/GrBitmapTextGeoProc.cpp
index a934ff1..d24ddf8 100644
--- a/src/gpu/effects/GrBitmapTextGeoProc.cpp
+++ b/src/gpu/effects/GrBitmapTextGeoProc.cpp
@@ -17,50 +17,53 @@
 
 class GrGLBitmapTextGeoProc : public GrGLSLGeometryProcessor {
 public:
-    GrGLBitmapTextGeoProc() : fColor(GrColor_ILLEGAL) {}
+    GrGLBitmapTextGeoProc() : fColor(GrColor_ILLEGAL), fAtlasSize({0,0}) {}
 
     void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
-        const GrBitmapTextGeoProc& cte = args.fGP.cast<GrBitmapTextGeoProc>();
+        const GrBitmapTextGeoProc& btgp = args.fGP.cast<GrBitmapTextGeoProc>();
 
         GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
         GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
         GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
 
         // emit attributes
-        varyingHandler->emitAttributes(cte);
+        varyingHandler->emitAttributes(btgp);
 
-        // compute numbers to be hardcoded to convert texture coordinates from int to float
-        SkASSERT(cte.numTextureSamplers() == 1);
-        SkDEBUGCODE(GrTexture* atlas = cte.textureSampler(0).peekTexture());
-        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
+        const char* atlasSizeInvName;
+        fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
+                                                          kVec2f_GrSLType,
+                                                          kHigh_GrSLPrecision,
+                                                          "AtlasSizeInv",
+                                                          &atlasSizeInvName);
 
         GrGLSLVertToFrag v(kVec2f_GrSLType);
         varyingHandler->addVarying("TextureCoords", &v, kHigh_GrSLPrecision);
-        vertBuilder->codeAppendf("%s = %s;", v.vsOut(),
-                                 cte.inTextureCoords()->fName);
+        vertBuilder->codeAppendf("%s = %s * %s;", v.vsOut(),
+                                 btgp.inTextureCoords()->fName,
+                                 atlasSizeInvName);
 
         GrGLSLPPFragmentBuilder* fragBuilder = args.fFragBuilder;
         // Setup pass through color
-        if (cte.hasVertexColor()) {
-            varyingHandler->addPassThroughAttribute(cte.inColor(), args.fOutputColor);
+        if (btgp.hasVertexColor()) {
+            varyingHandler->addPassThroughAttribute(btgp.inColor(), args.fOutputColor);
         } else {
             this->setupUniformColor(fragBuilder, uniformHandler, args.fOutputColor,
                                     &fColorUniform);
         }
 
         // Setup position
-        this->writeOutputPosition(vertBuilder, gpArgs, cte.inPosition()->fName);
+        this->writeOutputPosition(vertBuilder, gpArgs, btgp.inPosition()->fName);
 
         // emit transforms
         this->emitTransforms(vertBuilder,
                              varyingHandler,
                              uniformHandler,
                              gpArgs->fPositionVar,
-                             cte.inPosition()->fName,
-                             cte.localMatrix(),
+                             btgp.inPosition()->fName,
+                             btgp.localMatrix(),
                              args.fFPCoordTransformHandler);
 
-        if (cte.maskFormat() == kARGB_GrMaskFormat) {
+        if (btgp.maskFormat() == kARGB_GrMaskFormat) {
             fragBuilder->codeAppendf("%s = ", args.fOutputColor);
             fragBuilder->appendTextureLookupAndModulate(args.fOutputColor,
                                                         args.fTexSamplers[0],
@@ -84,31 +87,35 @@
             pdman.set4fv(fColorUniform, 1, c);
             fColor = btgp.color();
         }
+
+        SkASSERT(btgp.numTextureSamplers() == 1);
+        GrTexture* atlas = btgp.textureSampler(0).peekTexture();
+        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
+
+        if (fAtlasSize.fWidth != atlas->width() || fAtlasSize.fHeight != atlas->height()) {
+            pdman.set2f(fAtlasSizeInvUniform, 1.0f / atlas->width(), 1.0f / atlas->height());
+            fAtlasSize.set(atlas->width(), atlas->height());
+        }
         this->setTransformDataHelper(btgp.localMatrix(), pdman, &transformIter);
     }
 
     static inline void GenKey(const GrGeometryProcessor& proc,
                               const GrShaderCaps&,
                               GrProcessorKeyBuilder* b) {
-        const GrBitmapTextGeoProc& gp = proc.cast<GrBitmapTextGeoProc>();
+        const GrBitmapTextGeoProc& btgp = proc.cast<GrBitmapTextGeoProc>();
         uint32_t key = 0;
-        key |= (gp.usesLocalCoords() && gp.localMatrix().hasPerspective()) ? 0x1 : 0x0;
-        key |= gp.maskFormat() << 1;
+        key |= (btgp.usesLocalCoords() && btgp.localMatrix().hasPerspective()) ? 0x1 : 0x0;
+        key |= btgp.maskFormat() << 1;
         b->add32(key);
-
-        // Currently we hardcode numbers to convert atlas coordinates to normalized floating point
-        SkASSERT(gp.numTextureSamplers() == 1);
-        GrTextureProxy* atlas = gp.textureSampler(0).proxy();
-        if (atlas) {
-            b->add32(atlas->width());
-            b->add32(atlas->height());
-        }
     }
 
 private:
-    GrColor fColor;
+    GrColor       fColor;
     UniformHandle fColorUniform;
 
+    SkISize       fAtlasSize;
+    UniformHandle fAtlasSizeInvUniform;
+
     typedef GrGLSLGeometryProcessor INHERITED;
 };
 
@@ -133,7 +140,8 @@
     if (hasVertexColor) {
         fInColor = &this->addVertexAttrib("inColor", kVec4ub_GrVertexAttribType);
     }
-    fInTextureCoords = &this->addVertexAttrib("inTextureCoords",  kVec2us_GrVertexAttribType,
+
+    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_uint_GrVertexAttribType,
                                               kHigh_GrSLPrecision);
     this->addTextureSampler(&fTextureSampler);
 }
diff --git a/src/gpu/effects/GrDistanceFieldGeoProc.cpp b/src/gpu/effects/GrDistanceFieldGeoProc.cpp
index 8dd2fa6..87b47e4 100644
--- a/src/gpu/effects/GrDistanceFieldGeoProc.cpp
+++ b/src/gpu/effects/GrDistanceFieldGeoProc.cpp
@@ -23,11 +23,12 @@
 class GrGLDistanceFieldA8TextGeoProc : public GrGLSLGeometryProcessor {
 public:
     GrGLDistanceFieldA8TextGeoProc()
-        : fViewMatrix(SkMatrix::InvalidMatrix())
-#ifdef SK_GAMMA_APPLY_TO_A8
-        , fDistanceAdjust(-1.0f)
-#endif
-        {}
+            : fViewMatrix(SkMatrix::InvalidMatrix())
+    #ifdef SK_GAMMA_APPLY_TO_A8
+            , fDistanceAdjust(-1.0f)
+    #endif
+            , fAtlasSize({0,0}) {
+    }
 
     void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override{
         const GrDistanceFieldA8TextGeoProc& dfTexEffect =
@@ -41,6 +42,12 @@
         // emit attributes
         varyingHandler->emitAttributes(dfTexEffect);
 
+        const char* atlasSizeInvName;
+        fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
+                                                          kVec2f_GrSLType,
+                                                          kHigh_GrSLPrecision,
+                                                          "AtlasSizeInv",
+                                                          &atlasSizeInvName);
 #ifdef SK_GAMMA_APPLY_TO_A8
         // adjust based on gamma
         const char* distanceAdjustUniName = nullptr;
@@ -70,8 +77,17 @@
                              args.fFPCoordTransformHandler);
 
         // add varyings
-        GrGLSLVertToFrag recipScale(kFloat_GrSLType);
         GrGLSLVertToFrag uv(kVec2f_GrSLType);
+        varyingHandler->addVarying("TextureCoords", &uv, kHigh_GrSLPrecision);
+        vertBuilder->codeAppendf("%s = %s * %s;", uv.vsOut(),
+                                 dfTexEffect.inTextureCoords()->fName,
+                                 atlasSizeInvName);
+
+        GrGLSLVertToFrag st(kVec2f_GrSLType);
+        varyingHandler->addVarying("IntTextureCoords", &st, kHigh_GrSLPrecision);
+        vertBuilder->codeAppendf("%s = %s;", st.vsOut(),
+                                 dfTexEffect.inTextureCoords()->fName);
+
         bool isUniformScale = (dfTexEffect.getFlags() & kUniformScale_DistanceFieldEffectMask) ==
                               kUniformScale_DistanceFieldEffectMask;
         bool isSimilarity = SkToBool(dfTexEffect.getFlags() & kSimilarity_DistanceFieldEffectFlag);
@@ -79,29 +95,14 @@
             SkToBool(dfTexEffect.getFlags() & kGammaCorrect_DistanceFieldEffectFlag);
         bool isAliased =
             SkToBool(dfTexEffect.getFlags() & kAliased_DistanceFieldEffectFlag);
-        varyingHandler->addVarying("TextureCoords", &uv, kHigh_GrSLPrecision);
-        vertBuilder->codeAppendf("%s = %s;", uv.vsOut(), dfTexEffect.inTextureCoords()->fName);
-
-        // compute numbers to be hardcoded to convert texture coordinates from float to int
-        SkASSERT(dfTexEffect.numTextureSamplers() == 1);
-        GrTexture* atlas = dfTexEffect.textureSampler(0).peekTexture();
-        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
-
-        GrGLSLVertToFrag st(kVec2f_GrSLType);
-        varyingHandler->addVarying("IntTextureCoords", &st, kHigh_GrSLPrecision);
-        vertBuilder->codeAppendf("%s = float2(%d, %d) * %s;", st.vsOut(),
-                                 atlas->width(), atlas->height(),
-                                 dfTexEffect.inTextureCoords()->fName);
 
         // Use highp to work around aliasing issues
         fragBuilder->codeAppendf("highp float2 uv = %s;\n", uv.fsIn());
 
-        fragBuilder->codeAppend("\tfloat texColor = ");
-        fragBuilder->appendTextureLookup(args.fTexSamplers[0],
-                                         "uv",
-                                         kVec2f_GrSLType);
-        fragBuilder->codeAppend(".r;\n");
-        fragBuilder->codeAppend("\tfloat distance = "
+        fragBuilder->codeAppend("float texColor = ");
+        fragBuilder->appendTextureLookup(args.fTexSamplers[0], "uv", kVec2f_GrSLType);
+        fragBuilder->codeAppend(".r;");
+        fragBuilder->codeAppend("float distance = "
                        SK_DistanceFieldMultiplier "*(texColor - " SK_DistanceFieldThreshold ");");
 #ifdef SK_GAMMA_APPLY_TO_A8
         // adjust width based on gamma
@@ -177,15 +178,15 @@
 
     void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& proc,
                  FPCoordTransformIter&& transformIter) override {
+        const GrDistanceFieldA8TextGeoProc& dfa8gp = proc.cast<GrDistanceFieldA8TextGeoProc>();
+
 #ifdef SK_GAMMA_APPLY_TO_A8
-        const GrDistanceFieldA8TextGeoProc& dfTexEffect = proc.cast<GrDistanceFieldA8TextGeoProc>();
-        float distanceAdjust = dfTexEffect.getDistanceAdjust();
+        float distanceAdjust = dfa8gp.getDistanceAdjust();
         if (distanceAdjust != fDistanceAdjust) {
-            pdman.set1f(fDistanceAdjustUni, distanceAdjust);
             fDistanceAdjust = distanceAdjust;
+            pdman.set1f(fDistanceAdjustUni, distanceAdjust);
         }
 #endif
-        const GrDistanceFieldA8TextGeoProc& dfa8gp = proc.cast<GrDistanceFieldA8TextGeoProc>();
 
         if (!dfa8gp.viewMatrix().isIdentity() && !fViewMatrix.cheapEqualTo(dfa8gp.viewMatrix())) {
             fViewMatrix = dfa8gp.viewMatrix();
@@ -193,6 +194,16 @@
             GrGLSLGetMatrix<3>(viewMatrix, fViewMatrix);
             pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
         }
+
+        SkASSERT(dfa8gp.numTextureSamplers() == 1);
+        GrTexture* atlas = dfa8gp.textureSampler(0).peekTexture();
+        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
+
+        if (fAtlasSize.fWidth != atlas->width() || fAtlasSize.fHeight != atlas->height()) {
+            fAtlasSize.set(atlas->width(), atlas->height());
+            pdman.set2f(fAtlasSizeInvUniform, 1.0f / atlas->width(), 1.0f / atlas->height());
+        }
+
         this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter);
     }
 
@@ -203,14 +214,6 @@
         uint32_t key = dfTexEffect.getFlags();
         key |= ComputePosKey(dfTexEffect.viewMatrix()) << 16;
         b->add32(key);
-
-        // Currently we hardcode numbers to convert atlas coordinates to normalized floating point
-        SkASSERT(gp.numTextureSamplers() == 1);
-        GrTextureProxy* atlas = gp.textureSampler(0).proxy();
-        if (atlas) {
-            b->add32(atlas->width());
-            b->add32(atlas->height());
-        }
     }
 
 private:
@@ -220,6 +223,8 @@
     float         fDistanceAdjust;
     UniformHandle fDistanceAdjustUni;
 #endif
+    SkISize       fAtlasSize;
+    UniformHandle fAtlasSizeInvUniform;
 
     typedef GrGLSLGeometryProcessor INHERITED;
 };
@@ -249,7 +254,7 @@
     fInPosition = &this->addVertexAttrib("inPosition", kVec2f_GrVertexAttribType,
                                          kHigh_GrSLPrecision);
     fInColor = &this->addVertexAttrib("inColor", kVec4ub_GrVertexAttribType);
-    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_GrVertexAttribType,
+    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_uint_GrVertexAttribType,
                                               kHigh_GrSLPrecision);
     this->addTextureSampler(&fTextureSampler);
 }
@@ -308,8 +313,9 @@
 class GrGLDistanceFieldPathGeoProc : public GrGLSLGeometryProcessor {
 public:
     GrGLDistanceFieldPathGeoProc()
-        : fViewMatrix(SkMatrix::InvalidMatrix())
-        , fTextureSize(SkISize::Make(-1, -1)) {}
+            : fViewMatrix(SkMatrix::InvalidMatrix())
+            , fAtlasSize({0,0}) {
+    }
 
     void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override{
         const GrDistanceFieldPathGeoProc& dfTexEffect = args.fGP.cast<GrDistanceFieldPathGeoProc>();
@@ -323,12 +329,26 @@
         // emit attributes
         varyingHandler->emitAttributes(dfTexEffect);
 
-        GrGLSLVertToFrag v(kVec2f_GrSLType);
-        varyingHandler->addVarying("TextureCoords", &v, kHigh_GrSLPrecision);
+        const char* atlasSizeInvName;
+        fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
+                                                          kVec2f_GrSLType,
+                                                          kHigh_GrSLPrecision,
+                                                          "AtlasSizeInv",
+                                                          &atlasSizeInvName);
+
+        GrGLSLVertToFrag uv(kVec2f_GrSLType);
+        varyingHandler->addVarying("TextureCoords", &uv, kHigh_GrSLPrecision);
+        vertBuilder->codeAppendf("%s = %s * %s;", uv.vsOut(),
+                                 dfTexEffect.inTextureCoords()->fName,
+                                 atlasSizeInvName);
+
+        GrGLSLVertToFrag st(kVec2f_GrSLType);
+        varyingHandler->addVarying("IntTextureCoords", &st, kHigh_GrSLPrecision);
+        vertBuilder->codeAppendf("%s = %s;", st.vsOut(),
+                                 dfTexEffect.inTextureCoords()->fName);
 
         // setup pass through color
         varyingHandler->addPassThroughAttribute(dfTexEffect.inColor(), args.fOutputColor);
-        vertBuilder->codeAppendf("%s = %s;", v.vsOut(), dfTexEffect.inTextureCoords()->fName);
 
         // Setup position
         this->writeOutputPosition(vertBuilder,
@@ -346,23 +366,15 @@
                              dfTexEffect.inPosition()->fName,
                              args.fFPCoordTransformHandler);
 
-        const char* textureSizeUniName = nullptr;
-        fTextureSizeUni = uniformHandler->addUniform(kFragment_GrShaderFlag,
-                                                     kVec2f_GrSLType, kDefault_GrSLPrecision,
-                                                     "TextureSize", &textureSizeUniName);
-
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppendf("highp float2 uv = %s;", v.fsIn());
+        fragBuilder->codeAppendf("highp float2 uv = %s;", uv.fsIn());
 
         fragBuilder->codeAppend("float texColor = ");
-        fragBuilder->appendTextureLookup(args.fTexSamplers[0],
-                                         "uv",
-                                         kVec2f_GrSLType);
+        fragBuilder->appendTextureLookup(args.fTexSamplers[0], "uv", kVec2f_GrSLType);
         fragBuilder->codeAppend(".r;");
         fragBuilder->codeAppend("float distance = "
             SK_DistanceFieldMultiplier "*(texColor - " SK_DistanceFieldThreshold ");");
 
-        fragBuilder->codeAppendf("highp float2 st = uv*%s;", textureSizeUniName);
         fragBuilder->codeAppend("float afwidth;");
         bool isUniformScale = (dfTexEffect.getFlags() & kUniformScale_DistanceFieldEffectMask) ==
                                kUniformScale_DistanceFieldEffectMask;
@@ -376,10 +388,12 @@
 
             // this gives us a smooth step across approximately one fragment
 #ifdef SK_VULKAN
-            fragBuilder->codeAppend("afwidth = abs(" SK_DistanceFieldAAFactor "*dFdx(st.x));");
+            fragBuilder->codeAppendf("afwidth = abs(" SK_DistanceFieldAAFactor "*dFdx(%s.x));",
+                                     st.fsIn());
 #else
             // We use the y gradient because there is a bug in the Mali 400 in the x direction.
-            fragBuilder->codeAppend("afwidth = abs(" SK_DistanceFieldAAFactor "*dFdy(st.y));");
+            fragBuilder->codeAppendf("afwidth = abs(" SK_DistanceFieldAAFactor "*dFdy(%s.y));",
+                                     st.fsIn());
 #endif
         } else if (isSimilarity) {
             // For similarity transform, we adjust the effect of the transformation on the distance
@@ -388,10 +402,10 @@
 
             // this gives us a smooth step across approximately one fragment
 #ifdef SK_VULKAN
-            fragBuilder->codeAppend("float st_grad_len = length(dFdx(st));");
+            fragBuilder->codeAppendf("float st_grad_len = length(dFdx(%s));", st.fsIn());
 #else
             // We use the y gradient because there is a bug in the Mali 400 in the x direction.
-            fragBuilder->codeAppend("float st_grad_len = length(dFdy(st));");
+            fragBuilder->codeAppendf("float st_grad_len = length(dFdy(%s));", st.fsIn());
 #endif
             fragBuilder->codeAppend("afwidth = abs(" SK_DistanceFieldAAFactor "*st_grad_len);");
         } else {
@@ -408,8 +422,8 @@
             fragBuilder->codeAppend("dist_grad = dist_grad*inversesqrt(dg_len2);");
             fragBuilder->codeAppend("}");
 
-            fragBuilder->codeAppend("float2 Jdx = dFdx(st);");
-            fragBuilder->codeAppend("float2 Jdy = dFdy(st);");
+            fragBuilder->codeAppendf("float2 Jdx = dFdx(%s);", st.fsIn());
+            fragBuilder->codeAppendf("float2 Jdy = dFdy(%s);", st.fsIn());
             fragBuilder->codeAppend("float2 grad = float2(dist_grad.x*Jdx.x + dist_grad.y*Jdy.x,");
             fragBuilder->codeAppend("                 dist_grad.x*Jdx.y + dist_grad.y*Jdy.y);");
 
@@ -431,17 +445,6 @@
 
     void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor& proc,
                  FPCoordTransformIter&& transformIter) override {
-        SkASSERT(fTextureSizeUni.isValid());
-
-        GrTexture* texture = proc.textureSampler(0).peekTexture();
-
-        if (texture->width() != fTextureSize.width() ||
-            texture->height() != fTextureSize.height()) {
-            fTextureSize = SkISize::Make(texture->width(), texture->height());
-            pdman.set2f(fTextureSizeUni,
-                        SkIntToScalar(fTextureSize.width()),
-                        SkIntToScalar(fTextureSize.height()));
-        }
 
         const GrDistanceFieldPathGeoProc& dfpgp = proc.cast<GrDistanceFieldPathGeoProc>();
 
@@ -451,6 +454,16 @@
             GrGLSLGetMatrix<3>(viewMatrix, fViewMatrix);
             pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
         }
+
+        SkASSERT(dfpgp.numTextureSamplers() == 1);
+        GrTexture* atlas = dfpgp.textureSampler(0).peekTexture();
+        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
+
+        if (fAtlasSize.fWidth != atlas->width() || fAtlasSize.fHeight != atlas->height()) {
+            fAtlasSize.set(atlas->width(), atlas->height());
+            pdman.set2f(fAtlasSizeInvUniform, 1.0f / atlas->width(), 1.0f / atlas->height());
+        }
+
         this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter);
     }
 
@@ -465,10 +478,11 @@
     }
 
 private:
-    UniformHandle fTextureSizeUni;
-    UniformHandle fViewMatrixUniform;
     SkMatrix      fViewMatrix;
-    SkISize       fTextureSize;
+    UniformHandle fViewMatrixUniform;
+
+    SkISize       fAtlasSize;
+    UniformHandle fAtlasSizeInvUniform;
 
     typedef GrGLSLGeometryProcessor INHERITED;
 };
@@ -491,7 +505,8 @@
     fInPosition = &this->addVertexAttrib("inPosition", kVec2f_GrVertexAttribType,
                                          kHigh_GrSLPrecision);
     fInColor = &this->addVertexAttrib("inColor", kVec4ub_GrVertexAttribType);
-    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_GrVertexAttribType);
+    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_uint_GrVertexAttribType,
+                                              kHigh_GrSLPrecision);
     this->addTextureSampler(&fTextureSampler);
 }
 
@@ -547,7 +562,8 @@
 class GrGLDistanceFieldLCDTextGeoProc : public GrGLSLGeometryProcessor {
 public:
     GrGLDistanceFieldLCDTextGeoProc()
-        : fViewMatrix(SkMatrix::InvalidMatrix()) {
+            : fViewMatrix(SkMatrix::InvalidMatrix())
+            , fAtlasSize({0,0}) {
         fDistanceAdjust = GrDistanceFieldLCDTextGeoProc::DistanceAdjust::Make(1.0f, 1.0f, 1.0f);
     }
 
@@ -562,6 +578,13 @@
         // emit attributes
         varyingHandler->emitAttributes(dfTexEffect);
 
+        const char* atlasSizeInvName;
+        fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
+                                                          kVec2f_GrSLType,
+                                                          kHigh_GrSLPrecision,
+                                                          "AtlasSizeInv",
+                                                          &atlasSizeInvName);
+
         GrGLSLPPFragmentBuilder* fragBuilder = args.fFragBuilder;
 
         // setup pass through color
@@ -584,39 +607,36 @@
                              args.fFPCoordTransformHandler);
 
         // set up varyings
+        GrGLSLVertToFrag uv(kVec2f_GrSLType);
+        varyingHandler->addVarying("TextureCoords", &uv, kHigh_GrSLPrecision);
+        vertBuilder->codeAppendf("%s = %s * %s;", uv.vsOut(),
+                                 dfTexEffect.inTextureCoords()->fName,
+                                 atlasSizeInvName);
+
+        GrGLSLVertToFrag st(kVec2f_GrSLType);
+        varyingHandler->addVarying("IntTextureCoords", &st, kHigh_GrSLPrecision);
+        vertBuilder->codeAppendf("%s = %s;", st.vsOut(),
+                                 dfTexEffect.inTextureCoords()->fName);
+
+        GrGLSLVertToFrag delta(kFloat_GrSLType);
+        varyingHandler->addVarying("Delta", &delta, kHigh_GrSLPrecision);
+        if (dfTexEffect.getFlags() & kBGR_DistanceFieldEffectFlag) {
+            vertBuilder->codeAppendf("%s = -%s.x/3.0;", delta.vsOut(), atlasSizeInvName);
+        } else {
+            vertBuilder->codeAppendf("%s = %s.x/3.0;", delta.vsOut(), atlasSizeInvName);
+        }
+
+        // add frag shader code
         bool isUniformScale = (dfTexEffect.getFlags() & kUniformScale_DistanceFieldEffectMask) ==
                               kUniformScale_DistanceFieldEffectMask;
         bool isSimilarity = SkToBool(dfTexEffect.getFlags() & kSimilarity_DistanceFieldEffectFlag);
         bool isGammaCorrect =
             SkToBool(dfTexEffect.getFlags() & kGammaCorrect_DistanceFieldEffectFlag);
-        GrGLSLVertToFrag recipScale(kFloat_GrSLType);
-        GrGLSLVertToFrag uv(kVec2f_GrSLType);
-        varyingHandler->addVarying("TextureCoords", &uv, kHigh_GrSLPrecision);
-        vertBuilder->codeAppendf("%s = %s;", uv.vsOut(), dfTexEffect.inTextureCoords()->fName);
-
-        // compute numbers to be hardcoded to convert texture coordinates from float to int
-        SkASSERT(dfTexEffect.numTextureSamplers() == 1);
-        GrTexture* atlas = dfTexEffect.textureSampler(0).peekTexture();
-        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
-
-        GrGLSLVertToFrag st(kVec2f_GrSLType);
-        varyingHandler->addVarying("IntTextureCoords", &st, kHigh_GrSLPrecision);
-        vertBuilder->codeAppendf("%s = float2(%d, %d) * %s;", st.vsOut(),
-                                 atlas->width(), atlas->height(),
-                                 dfTexEffect.inTextureCoords()->fName);
-
-        // add frag shader code
 
         // create LCD offset adjusted by inverse of transform
         // Use highp to work around aliasing issues
         fragBuilder->codeAppendf("highp float2 uv = %s;\n", uv.fsIn());
 
-        SkScalar lcdDelta = 1.0f / (3.0f * atlas->width());
-        if (dfTexEffect.getFlags() & kBGR_DistanceFieldEffectFlag) {
-            fragBuilder->codeAppendf("highp float delta = -%.*f;\n", SK_FLT_DECIMAL_DIG, lcdDelta);
-        } else {
-            fragBuilder->codeAppendf("highp float delta = %.*f;\n", SK_FLT_DECIMAL_DIG, lcdDelta);
-        }
         if (isUniformScale) {
 #ifdef SK_VULKAN
             fragBuilder->codeAppendf("float st_grad_len = abs(dFdx(%s.x));", st.fsIn());
@@ -624,18 +644,19 @@
             // We use the y gradient because there is a bug in the Mali 400 in the x direction.
             fragBuilder->codeAppendf("float st_grad_len = abs(dFdy(%s.y));", st.fsIn());
 #endif
-            fragBuilder->codeAppend("float2 offset = float2(st_grad_len*delta, 0.0);");
+            fragBuilder->codeAppendf("float2 offset = float2(st_grad_len*%s, 0.0);", delta.fsIn());
         } else if (isSimilarity) {
             // For a similarity matrix with rotation, the gradient will not be aligned
             // with the texel coordinate axes, so we need to calculate it.
 #ifdef SK_VULKAN
             fragBuilder->codeAppendf("float2 st_grad = dFdx(%s);", st.fsIn());
-            fragBuilder->codeAppend("float2 offset = delta*st_grad;");
+            fragBuilder->codeAppendf("float2 offset = %s*st_grad;", delta.fsIn());
 #else
             // We use dFdy because of a Mali 400 bug, and rotate -90 degrees to
             // get the gradient in the x direction.
             fragBuilder->codeAppendf("float2 st_grad = dFdy(%s);", st.fsIn());
-            fragBuilder->codeAppend("float2 offset = delta*float2(st_grad.y, -st_grad.x);");
+            fragBuilder->codeAppendf("float2 offset = %s*float2(st_grad.y, -st_grad.x);",
+                                     delta.fsIn());
 #endif
             fragBuilder->codeAppend("float st_grad_len = length(st_grad);");
         } else {
@@ -643,7 +664,7 @@
 
             fragBuilder->codeAppend("float2 Jdx = dFdx(st);");
             fragBuilder->codeAppend("float2 Jdy = dFdy(st);");
-            fragBuilder->codeAppend("float2 offset = delta*Jdx;");
+            fragBuilder->codeAppendf("float2 offset = %s*Jdx;", delta.fsIn());
         }
 
         // green is distance to uv center
@@ -742,6 +763,16 @@
             GrGLSLGetMatrix<3>(viewMatrix, fViewMatrix);
             pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
         }
+
+        SkASSERT(dflcd.numTextureSamplers() == 1);
+        GrTexture* atlas = dflcd.textureSampler(0).peekTexture();
+        SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()));
+
+        if (fAtlasSize.fWidth != atlas->width() || fAtlasSize.fHeight != atlas->height()) {
+            fAtlasSize.set(atlas->width(), atlas->height());
+            pdman.set2f(fAtlasSizeInvUniform, 1.0f / atlas->width(), 1.0f / atlas->height());
+        }
+
         this->setTransformDataHelper(SkMatrix::I(), pdman, &transformIter);
     }
 
@@ -753,22 +784,17 @@
         uint32_t key = dfTexEffect.getFlags();
         key |= ComputePosKey(dfTexEffect.viewMatrix()) << 16;
         b->add32(key);
-
-        // Currently we hardcode numbers to convert atlas coordinates to normalized floating point
-        SkASSERT(gp.numTextureSamplers() == 1);
-        GrTextureProxy* atlas = gp.textureSampler(0).proxy();
-        if (atlas) {
-            b->add32(atlas->width());
-            b->add32(atlas->height());
-        }
     }
 
 private:
-    SkMatrix                                     fViewMatrix;
-    UniformHandle                                fViewMatrixUniform;
-    UniformHandle                                fColorUniform;
+    SkMatrix                                      fViewMatrix;
+    UniformHandle                                 fViewMatrixUniform;
+
     GrDistanceFieldLCDTextGeoProc::DistanceAdjust fDistanceAdjust;
-    UniformHandle                                fDistanceAdjustUni;
+    UniformHandle                                 fDistanceAdjustUni;
+
+    SkISize                                       fAtlasSize;
+    UniformHandle                                 fAtlasSizeInvUniform;
 
     typedef GrGLSLGeometryProcessor INHERITED;
 };
@@ -791,7 +817,7 @@
     fInPosition = &this->addVertexAttrib("inPosition", kVec2f_GrVertexAttribType,
                                          kHigh_GrSLPrecision);
     fInColor = &this->addVertexAttrib("inColor", kVec4ub_GrVertexAttribType);
-    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_GrVertexAttribType,
+    fInTextureCoords = &this->addVertexAttrib("inTextureCoords", kVec2us_uint_GrVertexAttribType,
                                               kHigh_GrSLPrecision);
     this->addTextureSampler(&fTextureSampler);
 }
diff --git a/src/gpu/gl/GrGLVertexArray.cpp b/src/gpu/gl/GrGLVertexArray.cpp
index 745e532..991de96 100644
--- a/src/gpu/gl/GrGLVertexArray.cpp
+++ b/src/gpu/gl/GrGLVertexArray.cpp
@@ -37,8 +37,10 @@
             return {true, 1, GR_GL_UNSIGNED_BYTE};
         case kVec4ub_GrVertexAttribType:
             return {true, 4, GR_GL_UNSIGNED_BYTE};
-        case kVec2us_GrVertexAttribType:
+        case kVec2us_norm_GrVertexAttribType:
             return {true, 2, GR_GL_UNSIGNED_SHORT};
+        case kVec2us_uint_GrVertexAttribType:
+            return {false, 2, GR_GL_UNSIGNED_SHORT};
         case kInt_GrVertexAttribType:
             return {false, 1, GR_GL_INT};
         case kUint_GrVertexAttribType:
@@ -48,6 +50,40 @@
     return {false, 0, 0};
 };
 
+static bool GrVertexAttribTypeIsIntType(const GrShaderCaps* shaderCaps,
+                                        GrVertexAttribType type) {
+    switch (type) {
+        case kFloat_GrVertexAttribType:
+            return false;
+        case kVec2f_GrVertexAttribType:
+            return false;
+        case kVec3f_GrVertexAttribType:
+            return false;
+        case kVec4f_GrVertexAttribType:
+            return false;
+        case kVec2i_GrVertexAttribType:
+            return true;
+        case kVec3i_GrVertexAttribType:
+            return true;
+        case kVec4i_GrVertexAttribType:
+            return true;
+        case kUByte_GrVertexAttribType:
+            return false;
+        case kVec4ub_GrVertexAttribType:
+            return false;
+        case kVec2us_norm_GrVertexAttribType:
+            return false;
+        case kVec2us_uint_GrVertexAttribType:
+            return shaderCaps->integerSupport();
+        case kInt_GrVertexAttribType:
+            return true;
+        case kUint_GrVertexAttribType:
+            return true;
+    }
+    SK_ABORT("Unexpected attribute type");
+    return false;
+}
+
 void GrGLAttribArrayState::set(GrGLGpu* gpu,
                                int index,
                                const GrBuffer* vertexBuffer,
@@ -65,7 +101,7 @@
         gpu->bindBuffer(kVertex_GrBufferType, vertexBuffer);
         const AttribLayout& layout = attrib_layout(type);
         const GrGLvoid* offsetAsPtr = reinterpret_cast<const GrGLvoid*>(offsetInBytes);
-        if (!GrVertexAttribTypeIsIntType(type)) {
+        if (!GrVertexAttribTypeIsIntType(gpu->caps()->shaderCaps(), type)) {
             GR_GL_CALL(gpu->glInterface(), VertexAttribPointer(index,
                                                                layout.fCount,
                                                                layout.fType,
diff --git a/src/gpu/glsl/GrGLSL.cpp b/src/gpu/glsl/GrGLSL.cpp
index b580f0b..6fe1e26 100644
--- a/src/gpu/glsl/GrGLSL.cpp
+++ b/src/gpu/glsl/GrGLSL.cpp
@@ -26,6 +26,66 @@
     return false;
 }
 
+const char* GrGLSLTypeString(const GrShaderCaps* shaderCaps, GrSLType t) {
+    switch (t) {
+        case kVoid_GrSLType:
+            return "void";
+        case kFloat_GrSLType:
+            return "float";
+        case kVec2f_GrSLType:
+            return "float2";
+        case kVec3f_GrSLType:
+            return "float3";
+        case kVec4f_GrSLType:
+            return "float4";
+        case kVec2us_GrSLType:
+            if (shaderCaps->integerSupport()) {
+                return "uint2";
+            } else {
+                // uint2 (aka uvec2) isn't supported in GLSL ES 1.00/GLSL 1.20
+                return "float2";
+            }
+        case kVec2i_GrSLType:
+            return "int2";
+        case kVec3i_GrSLType:
+            return "int3";
+        case kVec4i_GrSLType:
+            return "int4";
+        case kMat22f_GrSLType:
+            return "float2x2";
+        case kMat33f_GrSLType:
+            return "float3x3";
+        case kMat44f_GrSLType:
+            return "float4x4";
+        case kTexture2DSampler_GrSLType:
+            return "sampler2D";
+        case kITexture2DSampler_GrSLType:
+            return "isampler2D";
+        case kTextureExternalSampler_GrSLType:
+            return "samplerExternalOES";
+        case kTexture2DRectSampler_GrSLType:
+            return "sampler2DRect";
+        case kBufferSampler_GrSLType:
+            return "samplerBuffer";
+        case kBool_GrSLType:
+            return "bool";
+        case kInt_GrSLType:
+            return "int";
+        case kUint_GrSLType:
+            return "uint";
+        case kTexture2D_GrSLType:
+            return "texture2D";
+        case kSampler_GrSLType:
+            return "sampler";
+        case kImageStorage2D_GrSLType:
+            return "image2D";
+        case kIImageStorage2D_GrSLType:
+            return "iimage2D";
+    }
+    SK_ABORT("Unknown shader var type.");
+    return ""; // suppress warning
+}
+
 void GrGLSLAppendDefaultFloatPrecisionDeclaration(GrSLPrecision p,
                                                   const GrShaderCaps& shaderCaps,
                                                   SkString* out) {
diff --git a/src/gpu/glsl/GrGLSLShaderBuilder.cpp b/src/gpu/glsl/GrGLSLShaderBuilder.cpp
index 8f7d23d..4d54c75 100644
--- a/src/gpu/glsl/GrGLSLShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLShaderBuilder.cpp
@@ -46,7 +46,7 @@
                                        const GrShaderVar* args,
                                        const char* body,
                                        SkString* outName) {
-    this->functions().append(GrGLSLTypeString(returnType));
+    this->functions().append(GrGLSLTypeString(fProgramBuilder->shaderCaps(), returnType));
     fProgramBuilder->nameVariable(outName, '\0', name);
     this->functions().appendf(" %s", outName->c_str());
     this->functions().append("(");
diff --git a/src/gpu/instanced/InstanceProcessor.cpp b/src/gpu/instanced/InstanceProcessor.cpp
index ab68326..d1d826c 100644
--- a/src/gpu/instanced/InstanceProcessor.cpp
+++ b/src/gpu/instanced/InstanceProcessor.cpp
@@ -112,7 +112,7 @@
 
     const char* attr(Attrib attr) const { return fInstProc.getAttrib((int)attr).fName; }
 
-    void fetchNextParam(GrSLType type = kVec4f_GrSLType) const {
+    void fetchNextParam(const GrShaderCaps* shaderCaps, GrSLType type = kVec4f_GrSLType) const {
         SkASSERT(fParamsBuffer.isValid());
         switch (type) {
             case kVec2f_GrSLType: // fall through
@@ -120,7 +120,7 @@
             case kVec4f_GrSLType:
                 break;
             default:
-                fVertexBuilder->codeAppendf("%s(", GrGLSLTypeString(type));
+                fVertexBuilder->codeAppendf("%s(", GrGLSLTypeString(shaderCaps, type));
         }
         fVertexBuilder->appendTexelFetch(fParamsBuffer, "paramsIdx++");
         switch (type) {
@@ -156,12 +156,12 @@
     void init(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*);
     virtual void setupRect(GrGLSLVertexBuilder*) = 0;
     virtual void setupOval(GrGLSLVertexBuilder*) = 0;
-    void setupRRect(GrGLSLVertexBuilder*, int* usedShapeDefinitions);
+    void setupRRect(const GrShaderCaps*, GrGLSLVertexBuilder*, int* usedShapeDefinitions);
 
     void initInnerShape(GrGLSLVaryingHandler*, GrGLSLVertexBuilder*);
     virtual void setupInnerRect(GrGLSLVertexBuilder*) = 0;
     virtual void setupInnerOval(GrGLSLVertexBuilder*) = 0;
-    void setupInnerSimpleRRect(GrGLSLVertexBuilder*);
+    void setupInnerSimpleRRect(const GrShaderCaps*, GrGLSLVertexBuilder*);
 
     const char* outShapeCoords() {
         return fModifiedShapeCoords ? fModifiedShapeCoords : fInputs.attr(Attrib::kShapeCoords);
@@ -200,7 +200,7 @@
 
     void setupSimpleRadii(GrGLSLVertexBuilder*);
     void setupNinePatchRadii(GrGLSLVertexBuilder*);
-    void setupComplexRadii(GrGLSLVertexBuilder*);
+    void setupComplexRadii(const GrShaderCaps*, GrGLSLVertexBuilder*);
 
     const OpInfo fOpInfo;
     const VertexInputs& fInputs;
@@ -241,7 +241,7 @@
         v->codeAppendf("if (0 != (%s & uint(PERSPECTIVE_FLAG))) {",
                        inputs.attr(Attrib::kInstanceInfo));
         v->codeAppend (    "shapeMatrix[2] = ");
-        inputs.fetchNextParam(kVec3f_GrSLType);
+        inputs.fetchNextParam(args.fShaderCaps, kVec3f_GrSLType);
         v->codeAppend (    ";");
         v->codeAppend ("}");
     }
@@ -264,12 +264,12 @@
         } else if (kOval_ShapeFlag == ip.opInfo().fShapeTypes) {
             backend->setupOval(v);
         } else {
-            backend->setupRRect(v, &usedShapeDefinitions);
+            backend->setupRRect(args.fShaderCaps, v, &usedShapeDefinitions);
         }
     } else {
         if (ip.opInfo().fShapeTypes & kRRect_ShapesMask) {
             v->codeAppend ("if (shapeType >= uint(SIMPLE_R_RECT_SHAPE_TYPE)) {");
-            backend->setupRRect(v, &usedShapeDefinitions);
+            backend->setupRRect(args.fShaderCaps, v, &usedShapeDefinitions);
             v->codeAppend ("}");
             usedShapeDefinitions |= kSimpleRRect_ShapeFlag;
         }
@@ -305,7 +305,7 @@
         // Here we take advantage of the fact that outerRect == localRect in recordDRRect.
         v->codeAppendf("float4 outer = %s;", inputs.attr(Attrib::kLocalRect));
         v->codeAppend ("float4 inner = ");
-        inputs.fetchNextParam();
+        inputs.fetchNextParam(args.fShaderCaps);
         v->codeAppend (";");
         // outer2Inner is a transform from shape coords to inner shape coords:
         // e.g. innerShapeCoords = shapeCoords * outer2Inner.xy + outer2Inner.zw
@@ -326,12 +326,12 @@
             } else if (kOval_ShapeFlag == ip.opInfo().fInnerShapeTypes) {
                 backend->setupInnerOval(v);
             } else {
-                backend->setupInnerSimpleRRect(v);
+                backend->setupInnerSimpleRRect(args.fShaderCaps, v);
             }
         } else {
             if (ip.opInfo().fInnerShapeTypes & kSimpleRRect_ShapeFlag) {
                 v->codeAppend ("if (uint(SIMPLE_R_RECT_SHAPE_TYPE) == innerShapeType) {");
-                backend->setupInnerSimpleRRect(v);
+                backend->setupInnerSimpleRRect(args.fShaderCaps, v);
                 v->codeAppend("}");
                 usedShapeDefinitions |= kSimpleRRect_ShapeFlag;
             }
@@ -385,10 +385,10 @@
         } else {
             v->codeAppendf(    "float2x3 localMatrix;");
             v->codeAppend (    "localMatrix[0] = ");
-            inputs.fetchNextParam(kVec3f_GrSLType);
+            inputs.fetchNextParam(args.fShaderCaps, kVec3f_GrSLType);
             v->codeAppend (    ";");
             v->codeAppend (    "localMatrix[1] = ");
-            inputs.fetchNextParam(kVec3f_GrSLType);
+            inputs.fetchNextParam(args.fShaderCaps, kVec3f_GrSLType);
             v->codeAppend (    ";");
             v->codeAppend (    "localCoords = (float3(localCoords, 1) * localMatrix).xy;");
         }
@@ -397,7 +397,7 @@
 
     GrSLType positionType = ip.opInfo().fHasPerspective ? kVec3f_GrSLType : kVec2f_GrSLType;
     v->codeAppendf("%s deviceCoords = float3(%s, 1) * shapeMatrix;",
-                   GrGLSLTypeString(positionType), backend->outShapeCoords());
+                   GrGLSLTypeString(args.fShaderCaps, positionType), backend->outShapeCoords());
     gpArgs->fPositionVar.set(positionType, "deviceCoords");
 
     this->emitTransforms(v, varyingHandler, uniHandler, gpArgs->fPositionVar, localCoords,
@@ -420,13 +420,15 @@
     }
 }
 
-void GLSLInstanceProcessor::Backend::setupRRect(GrGLSLVertexBuilder* v, int* usedShapeDefinitions) {
+void GLSLInstanceProcessor::Backend::setupRRect(const GrShaderCaps* shaderCaps,
+                                                GrGLSLVertexBuilder* v,
+                                                int* usedShapeDefinitions) {
     v->codeAppendf("uint2 corner = uint2(uint(%s) & 1, (uint(%s) >> 1) & 1);",
                    fInputs.attr(Attrib::kVertexAttrs), fInputs.attr(Attrib::kVertexAttrs));
     v->codeAppend ("float2 cornerSign = float2(corner) * 2.0 - 1.0;");
     v->codeAppendf("float2 radii%s;", fNeedsNeighborRadii ? ", neighborRadii" : "");
     v->codeAppend ("float2x2 p = ");
-    fInputs.fetchNextParam(kMat22f_GrSLType);
+    fInputs.fetchNextParam(shaderCaps, kMat22f_GrSLType);
     v->codeAppend (";");
     uint8_t types = fOpInfo.fShapeTypes & kRRect_ShapesMask;
     if (0 == (types & (types - 1))) {
@@ -435,7 +437,7 @@
         } else if (kNinePatch_ShapeFlag == types) {
             this->setupNinePatchRadii(v);
         } else if (kComplexRRect_ShapeFlag == types) {
-            this->setupComplexRadii(v);
+            this->setupComplexRadii(shaderCaps, v);
         }
     } else {
         if (types & kSimpleRRect_ShapeFlag) {
@@ -459,7 +461,7 @@
         }
         if (types & kComplexRRect_ShapeFlag) {
             v->codeAppend ("else {");
-            this->setupComplexRadii(v);
+            this->setupComplexRadii(shaderCaps, v);
             v->codeAppend ("}");
         }
     }
@@ -492,7 +494,8 @@
     }
 }
 
-void GLSLInstanceProcessor::Backend::setupComplexRadii(GrGLSLVertexBuilder* v) {
+void GLSLInstanceProcessor::Backend::setupComplexRadii(const GrShaderCaps* shaderCaps,
+                                                       GrGLSLVertexBuilder* v) {
     /**
      * The x and y radii of each arc are stored in separate vectors,
      * in the following order:
@@ -508,7 +511,7 @@
      *
      */
     v->codeAppend("float2x2 p2 = ");
-    fInputs.fetchNextParam(kMat22f_GrSLType);
+    fInputs.fetchNextParam(shaderCaps, kMat22f_GrSLType);
     v->codeAppend(";");
     v->codeAppend("radii = float2(p[corner.x][corner.y], p2[corner.y][corner.x]);");
     if (fNeedsNeighborRadii) {
@@ -539,9 +542,10 @@
     }
 }
 
-void GLSLInstanceProcessor::Backend::setupInnerSimpleRRect(GrGLSLVertexBuilder* v) {
+void GLSLInstanceProcessor::Backend::setupInnerSimpleRRect(const GrShaderCaps* shaderCaps,
+                                                           GrGLSLVertexBuilder* v) {
     v->codeAppend("float2x2 innerP = ");
-    fInputs.fetchNextParam(kMat22f_GrSLType);
+    fInputs.fetchNextParam(shaderCaps, kMat22f_GrSLType);
     v->codeAppend(";");
     v->codeAppend("float2 innerRadii = innerP[0] * 2.0 / innerP[1];");
     this->onSetupInnerSimpleRRect(v);
diff --git a/src/gpu/ops/GrSmallPathRenderer.cpp b/src/gpu/ops/GrSmallPathRenderer.cpp
index 69cd669..7e7a496 100644
--- a/src/gpu/ops/GrSmallPathRenderer.cpp
+++ b/src/gpu/ops/GrSmallPathRenderer.cpp
@@ -351,11 +351,11 @@
 
                     shapeData = new ShapeData;
                     if (!this->addBMPathToAtlas(target,
-                                              &flushInfo,
-                                              atlas,
-                                              shapeData,
-                                              args.fShape,
-                                              this->viewMatrix())) {
+                                                &flushInfo,
+                                                atlas,
+                                                shapeData,
+                                                args.fShape,
+                                                this->viewMatrix())) {
                         delete shapeData;
                         continue;
                     }
@@ -479,7 +479,6 @@
         shapeData->fKey.set(shape, dimension);
         shapeData->fID = id;
 
-        // set the bounds rect to the original bounds
         shapeData->fBounds = SkRect::Make(devPathBounds);
         shapeData->fBounds.offset(-translateX, -translateY);
         shapeData->fBounds.fLeft /= scale;
@@ -615,22 +614,10 @@
         }
 
         // set up texture coordinates
-        SkScalar texLeft = shapeData->fTextureCoords.fLeft;
-        SkScalar texTop = shapeData->fTextureCoords.fTop;
-        SkScalar texRight = shapeData->fTextureCoords.fRight;
-        SkScalar texBottom = shapeData->fTextureCoords.fBottom;
-
-        // convert texcoords to unsigned short format
-        sk_sp<GrTextureProxy> proxy = atlas->getProxy();
-
-        // The proxy must be functionally exact for this normalization to work correctly
-        SkASSERT(GrResourceProvider::IsFunctionallyExact(proxy.get()));
-        SkScalar uFactor = 65535.f / proxy->width();
-        SkScalar vFactor = 65535.f / proxy->height();
-        uint16_t l = (uint16_t)(texLeft*uFactor);
-        uint16_t t = (uint16_t)(texTop*vFactor);
-        uint16_t r = (uint16_t)(texRight*uFactor);
-        uint16_t b = (uint16_t)(texBottom*vFactor);
+        uint16_t l = shapeData->fTextureCoords.fLeft;
+        uint16_t t = shapeData->fTextureCoords.fTop;
+        uint16_t r = shapeData->fTextureCoords.fRight;
+        uint16_t b = shapeData->fTextureCoords.fBottom;
 
         // set vertex texture coords
         intptr_t textureCoordOffset = offset + sizeof(SkPoint) + sizeof(GrColor);
diff --git a/src/gpu/text/GrAtlasTextBlob_regenInOp.cpp b/src/gpu/text/GrAtlasTextBlob_regenInOp.cpp
index 3150988..96f0080 100644
--- a/src/gpu/text/GrAtlasTextBlob_regenInOp.cpp
+++ b/src/gpu/text/GrAtlasTextBlob_regenInOp.cpp
@@ -21,9 +21,8 @@
 template <bool regenPos, bool regenCol, bool regenTexCoords>
 inline void regen_vertices(intptr_t vertex, const GrGlyph* glyph, size_t vertexStride,
                            bool useDistanceFields, SkScalar transX, SkScalar transY,
-                           int32_t log2Width, int32_t log2Height,
                            GrColor color) {
-    int u0, v0, u1, v1;
+    uint16_t u0, v0, u1, v1;
     if (regenTexCoords) {
         SkASSERT(glyph);
         int width = glyph->fBounds.width();
@@ -40,20 +39,6 @@
             u1 = u0 + width;
             v1 = v0 + height;
         }
-
-        // normalize
-        u0 *= 65535;
-        u0 >>= log2Width;
-        u1 *= 65535;
-        u1 >>= log2Width;
-        v0 *= 65535;
-        v0 >>= log2Height;
-        v1 *= 65535;
-        v1 >>= log2Height;
-        SkASSERT(u0 >= 0 && u0 <= 65535);
-        SkASSERT(u1 >= 0 && u1 <= 65535);
-        SkASSERT(v0 >= 0 && v0 <= 65535);
-        SkASSERT(v1 >= 0 && v1 <= 65535);
     }
 
     // This is a bit wonky, but sometimes we have LCD text, in which case we won't have color
@@ -75,8 +60,8 @@
 
     if (regenTexCoords) {
         uint16_t* textureCoords = reinterpret_cast<uint16_t*>(vertex + texCoordOffset);
-        textureCoords[0] = (uint16_t) u0;
-        textureCoords[1] = (uint16_t) v0;
+        textureCoords[0] = u0;
+        textureCoords[1] = v0;
     }
     vertex += vertexStride;
 
@@ -94,8 +79,8 @@
 
     if (regenTexCoords) {
         uint16_t* textureCoords = reinterpret_cast<uint16_t*>(vertex + texCoordOffset);
-        textureCoords[0] = (uint16_t)u0;
-        textureCoords[1] = (uint16_t)v1;
+        textureCoords[0] = u0;
+        textureCoords[1] = v1;
     }
     vertex += vertexStride;
 
@@ -113,8 +98,8 @@
 
     if (regenTexCoords) {
         uint16_t* textureCoords = reinterpret_cast<uint16_t*>(vertex + texCoordOffset);
-        textureCoords[0] = (uint16_t)u1;
-        textureCoords[1] = (uint16_t)v1;
+        textureCoords[0] = u1;
+        textureCoords[1] = v1;
     }
     vertex += vertexStride;
 
@@ -132,8 +117,8 @@
 
     if (regenTexCoords) {
         uint16_t* textureCoords = reinterpret_cast<uint16_t*>(vertex + texCoordOffset);
-        textureCoords[0] = (uint16_t)u1;
-        textureCoords[1] = (uint16_t)v0;
+        textureCoords[0] = u1;
+        textureCoords[1] = v0;
     }
 }
 
@@ -170,7 +155,6 @@
     bool brokenRun = false;
     for (int glyphIdx = 0; glyphIdx < glyphCount; glyphIdx++) {
         GrGlyph* glyph = nullptr;
-        int log2Width = 0, log2Height = 0;
         if (regenTexCoords) {
             size_t glyphOffset = glyphIdx + info->glyphStartIndex();
 
@@ -197,8 +181,6 @@
             }
             fontCache->addGlyphToBulkAndSetUseToken(info->bulkUseToken(), glyph,
                                                     target->nextDrawToken());
-            log2Width = fontCache->log2Width(info->maskFormat());
-            log2Height = fontCache->log2Height(info->maskFormat());
         }
 
         intptr_t vertex = reinterpret_cast<intptr_t>(fVertices);
@@ -206,7 +188,7 @@
         vertex += vertexStride * glyphIdx * GrAtlasTextOp::kVerticesPerGlyph;
         regen_vertices<regenPos, regenCol, regenTexCoords>(vertex, glyph, vertexStride,
                                                            info->drawAsDistanceFields(), transX,
-                                                           transY, log2Width, log2Height, color);
+                                                           transY, color);
         helper->incGlyphCount();
     }
 
diff --git a/src/gpu/vk/GrVkPipeline.cpp b/src/gpu/vk/GrVkPipeline.cpp
index 1a61605..22777df 100644
--- a/src/gpu/vk/GrVkPipeline.cpp
+++ b/src/gpu/vk/GrVkPipeline.cpp
@@ -34,8 +34,10 @@
             return VK_FORMAT_R8_UNORM;
         case kVec4ub_GrVertexAttribType:
             return VK_FORMAT_R8G8B8A8_UNORM;
-        case kVec2us_GrVertexAttribType:
+        case kVec2us_norm_GrVertexAttribType:
             return VK_FORMAT_R16G16_UNORM;
+        case kVec2us_uint_GrVertexAttribType:
+            return VK_FORMAT_R16G16_UINT;
         case kInt_GrVertexAttribType:
             return VK_FORMAT_R32_SINT;
         case kUint_GrVertexAttribType:
diff --git a/src/gpu/vk/GrVkUniformHandler.cpp b/src/gpu/vk/GrVkUniformHandler.cpp
index be746cd..98a2751 100644
--- a/src/gpu/vk/GrVkUniformHandler.cpp
+++ b/src/gpu/vk/GrVkUniformHandler.cpp
@@ -28,6 +28,8 @@
             return 0xF;
         case kVec4f_GrSLType:
             return 0xF;
+        case kVec2us_GrSLType:
+            return 0x3;
         case kVec2i_GrSLType:
             return 0x7;
         case kVec3i_GrSLType:
@@ -76,6 +78,8 @@
             return 3 * sizeof(float);
         case kVec4f_GrSLType:
             return 4 * sizeof(float);
+        case kVec2us_GrSLType:
+            return 2 * sizeof(uint16_t);
         case kVec2i_GrSLType:
             return 2 * sizeof(int32_t);
         case kVec3i_GrSLType:
diff --git a/src/gpu/vk/GrVkVaryingHandler.cpp b/src/gpu/vk/GrVkVaryingHandler.cpp
index 8e43b76..5912098 100644
--- a/src/gpu/vk/GrVkVaryingHandler.cpp
+++ b/src/gpu/vk/GrVkVaryingHandler.cpp
@@ -21,6 +21,8 @@
             return 1;
         case kVec4f_GrSLType:
             return 1;
+        case kVec2us_GrSLType:
+            return 1;
         case kVec2i_GrSLType:
             return 1;
         case kVec3i_GrSLType: