Fix text-as-path with skshader on gpu

Review URL: http://codereview.appspot.com/4576057/



git-svn-id: http://skia.googlecode.com/svn/trunk@1575 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/gmmain.cpp b/gm/gmmain.cpp
index 37c3ee3..bd9eba0 100644
--- a/gm/gmmain.cpp
+++ b/gm/gmmain.cpp
@@ -26,6 +26,10 @@
 class Iter {
 public:
     Iter() {
+        this->reset();
+    }
+
+    void reset() {
         fReg = GMRegistry::Head();
     }
 
@@ -475,15 +479,22 @@
       return -1;
     }
 
+    int maxW = -1;
+    int maxH = -1;
+    Iter iter;
+    GM* gm;
+    while ((gm = iter.next()) != NULL) {
+        SkISize size = gm->getISize();
+        maxW = SkMax32(size.width(), maxW);
+        maxH = SkMax32(size.height(), maxH);
+    }
     // setup a GL context for drawing offscreen
     GrContext* context = NULL;
     SkEGLContext eglContext;
-    if (eglContext.init(1024, 1024)) {
+    if (eglContext.init(maxW, maxH)) {
         context = GrContext::CreateGLShaderContext();
     }
 
-    Iter iter;
-    GM* gm;
 
     if (readPath) {
         fprintf(stderr, "reading from %s\n", readPath);
@@ -493,6 +504,7 @@
 
     // Accumulate success of all tests so we can flag error in any
     // one with the return value.
+    iter.reset();
     bool overallSuccess = true;
     while ((gm = iter.next()) != NULL) {
         SkISize size = gm->getISize();
diff --git a/gm/shadertext.cpp b/gm/shadertext.cpp
index ea87823..dac75ae 100644
--- a/gm/shadertext.cpp
+++ b/gm/shadertext.cpp
@@ -110,7 +110,7 @@
         return SkString("shadertext");
     }
 
-	SkISize onISize() { return make_isize(950, 500); }
+	SkISize onISize() { return make_isize(1450, 500); }
 
     void drawBG(SkCanvas* canvas) {
         canvas->drawColor(0xFFDDDDDD);
@@ -121,7 +121,7 @@
 
         const char text[] = "Shaded Text";
         const int textLen = SK_ARRAY_COUNT(text) - 1;
-        const int pointSize = 48;
+        const int pointSize = 36;
 
         int w = pointSize * textLen;
         int h = pointSize;
@@ -169,19 +169,32 @@
         canvas->save();
         canvas->translate(SkIntToScalar(20), SkIntToScalar(10));
 
+        SkPath path;
+        path.arcTo(SkRect::MakeXYWH(-40, 15, 300, 90), 
+                   SK_Scalar1 * 225,  SK_Scalar1 * 90, false);
+        path.close();
+
         static const int testsPerCol = 8;
         static const int rowHeight = 60;
         static const int colWidth = 300;
         canvas->save();
         for (size_t s = 0; s < SK_ARRAY_COUNT(shaders); s++) {
             canvas->save();
-            canvas->translate(SkIntToScalar((s / testsPerCol) * colWidth),
-                              SkIntToScalar((s % testsPerCol) * rowHeight));
-                              paint.setShader(shaders[s])->ref();
+            int i = 2*s;
+            canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
+                              SkIntToScalar((i % testsPerCol) * rowHeight));
+            paint.setShader(shaders[s])->unref();
             canvas->drawText(text, textLen, 0, textBase, paint);
             canvas->restore();
+            canvas->save();
+            ++i;
+            canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
+                              SkIntToScalar((i % testsPerCol) * rowHeight));
+            canvas->drawTextOnPath(text, textLen, path, NULL, paint);
+            canvas->restore();
         }
         canvas->restore();
+
     }
 
 private: