Cleanup text vertex structs

* Rename SDFT3DVertex->Mask3DVertex
* Add ctor to ARGB to make construction interface the same
  as Mask ctor.

Change-Id: I28560fce0423b11d7dac6e3a4c798ffd0f088794
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/291076
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
diff --git a/src/gpu/text/GrTextBlob.cpp b/src/gpu/text/GrTextBlob.cpp
index d4eaa8a..737bea3 100644
--- a/src/gpu/text/GrTextBlob.cpp
+++ b/src/gpu/text/GrTextBlob.cpp
@@ -152,13 +152,13 @@
     return GetVertexStride(this->maskFormat(), this->hasW());
 }
 size_t GrTextBlob::SubRun::colorOffset() const {
-    return this->hasW() ? offsetof(SDFT3DVertex, color) : offsetof(Mask2DVertex, color);
+    return this->hasW() ? offsetof(Mask3DVertex, color) : offsetof(Mask2DVertex, color);
 }
 
 size_t GrTextBlob::SubRun::texCoordOffset() const {
     switch (fMaskFormat) {
         case kA8_GrMaskFormat:
-            return this->hasW() ? offsetof(SDFT3DVertex, atlasPos)
+            return this->hasW() ? offsetof(Mask3DVertex, atlasPos)
                                 : offsetof(Mask2DVertex, atlasPos);
         case kARGB_GrMaskFormat:
             return this->hasW() ? offsetof(ARGB3DVertex, atlasPos)
@@ -338,20 +338,20 @@
     static_assert(alignof(ARGB2DVertex) <= alignof(Mask2DVertex));
     size_t quadSize = sizeof(Mask2DVertex) * kVerticesPerGlyph;
     if (drawMatrix.hasPerspective() || forceWForDistanceFields) {
-        static_assert(sizeof(ARGB3DVertex) <= sizeof(SDFT3DVertex));
-        static_assert(alignof(ARGB3DVertex) <= alignof(SDFT3DVertex));
-        quadSize = sizeof(SDFT3DVertex) * kVerticesPerGlyph;
+        static_assert(sizeof(ARGB3DVertex) <= sizeof(Mask3DVertex));
+        static_assert(alignof(ARGB3DVertex) <= alignof(Mask3DVertex));
+        quadSize = sizeof(Mask3DVertex) * kVerticesPerGlyph;
     }
 
     // We can use the alignment of SDFT3DVertex as a proxy for all Vertex alignments.
-    static_assert(alignof(SDFT3DVertex) >= alignof(Mask2DVertex));
+    static_assert(alignof(Mask3DVertex) >= alignof(Mask2DVertex));
     // Assume there is no padding needed between glyph pointers and vertices.
-    static_assert(alignof(GrGlyph*) >= alignof(SDFT3DVertex));
+    static_assert(alignof(GrGlyph*) >= alignof(Mask3DVertex));
 
     // In the arena, the layout is GrGlyph*... | SDFT3DVertex... | SubRun, so there is no padding
     // between GrGlyph* and SDFT3DVertex, but padding is needed between the Mask2DVertex array
     // and the SubRun.
-    size_t vertexToSubRunPadding = alignof(SDFT3DVertex) - alignof(SubRun);
+    size_t vertexToSubRunPadding = alignof(Mask3DVertex) - alignof(SubRun);
     size_t arenaSize =
             sizeof(GrGlyph*) * glyphRunList.totalGlyphCount()
           + quadSize * glyphRunList.totalGlyphCount()
@@ -401,7 +401,7 @@
 size_t GrTextBlob::GetVertexStride(GrMaskFormat maskFormat, bool hasWCoord) {
     switch (maskFormat) {
         case kA8_GrMaskFormat:
-            return hasWCoord ? sizeof(SDFT3DVertex) : sizeof(Mask2DVertex);
+            return hasWCoord ? sizeof(Mask3DVertex) : sizeof(Mask2DVertex);
         case kARGB_GrMaskFormat:
             return hasWCoord ? sizeof(ARGB3DVertex) : sizeof(ARGB2DVertex);
         default:
diff --git a/src/gpu/text/GrTextBlob.h b/src/gpu/text/GrTextBlob.h
index 71f860f..f5d6108 100644
--- a/src/gpu/text/GrTextBlob.h
+++ b/src/gpu/text/GrTextBlob.h
@@ -137,27 +137,33 @@
                const SkMatrixProvider& deviceMatrix,
                SkPoint drawOrigin);
 
+    struct AtlasPt {
+        uint16_t u;
+        uint16_t v;
+    };
 
     // Normal text mask, SDFT, or color.
     struct Mask2DVertex {
         SkPoint devicePos;
         GrColor color;
-        SkIPoint16 atlasPos;
+        AtlasPt atlasPos;
     };
     struct ARGB2DVertex {
+        ARGB2DVertex(SkPoint d, GrColor, AtlasPt a) : devicePos{d}, atlasPos{a} {}
         SkPoint devicePos;
-        SkIPoint16 atlasPos;
+        AtlasPt atlasPos;
     };
 
     // Perspective SDFT or SDFT forced to 3D or perspective color.
-    struct SDFT3DVertex {
+    struct Mask3DVertex {
         SkPoint3 devicePos;
         GrColor color;
-        SkIPoint16 atlasPos;
+        AtlasPt atlasPos;
     };
     struct ARGB3DVertex {
+        ARGB3DVertex(SkPoint3 d, GrColor, AtlasPt a) : devicePos{d}, atlasPos{a} {}
         SkPoint3 devicePos;
-        SkIPoint16 atlasPos;
+        AtlasPt atlasPos;
     };
 
     static const int kVerticesPerGlyph = 4;