shpwFPS cpu usage: don't reload the font for every frame

src/Binding/JSDocument.cpp

@@ -424,16 +424,18 @@ bool JSDocument::JS_loadFont(JSContext *cx, JS::CallArgs &args)
     return true;
 }
 
-SkTypeface *JSDocument::getFont(char *name)
+SkTypeface *JSDocument::getFont(const char *name)
 {
-    char *pTmp = name;
+    char *pTmp = strdup(name);
 
-    while (*pTmp != '\0') {
-        *pTmp = tolower(*pTmp);
-        pTmp++;
+    for (int i = 0; name[i] != '\0'; i++) {
+        pTmp[i] = tolower(name[i]);
     }
 
-    NidiumFont *font = m_Fonts.get(name);
+    NidiumFont *font = m_Fonts.get(pTmp);
+
+    free(pTmp);
+
     if (font) {
         return font->m_Typeface;
     }

src/Binding/JSDocument.h

@@ -56,7 +56,7 @@ class JSDocument : public ClassMapper<JSDocument>
                   int weight        = 400,
                   NidiumFont::Style = NidiumFont::kFontStyle_Normal);
 
-    SkTypeface *getFont(char *name);
+    SkTypeface *getFont(const char *name);
 protected:
 
     NIDIUM_DECL_JSCALL(run);

src/Frontend/Context.cpp

@@ -256,6 +256,7 @@ void Context::createDebugCanvas()
 
     m_DebugHandler->setRight(0);
     m_DebugHandler->setOpacity(0.6);
+    ctx2d->getSurface()->setFontType("monospace");
 }
 
 #if DEBUG
@@ -292,9 +293,7 @@ void Context::postDraw()
         s->drawRect(0, 0, m_DebugHandler->getWidth(),
                     m_DebugHandler->getHeight(), 0);
         s->setFillColor(0xFFEEEEEEu);
-
-        // TODO: new style cast
-        s->setFontType((char *)("monospace"));
+
         s->drawTextf(5, 12, "Nidium build %s %s", __DATE__, __TIME__);
         s->drawTextf(5, 25, "Frame: %lld (%lldms)", m_Stats.nframe,
                      m_Stats.lastdifftime / 1000000LL);

src/Graphics/SkiaContext.cpp

@@ -1461,7 +1461,7 @@ void SkiaContext::setFontStyle(const char *style)
     PAINT->setTextSkewX(strcasestr(style, "italic") ? m_FontSkew : 0);
 }
 
-void SkiaContext::setFontType(char *str, JSDocument *doc)
+void SkiaContext::setFontType(const char *str, JSDocument *doc)
 {
     if (doc) {
         SkTypeface *tf = doc->getFont(str);

src/Graphics/SkiaContext.h

@@ -219,7 +219,7 @@ class SkiaContext
     void setGlobalComposite(const char *str);
     void setLineCap(const char *capStyle);
     void setLineJoin(const char *joinStyle);
-    void setFontType(char *str, Binding::JSDocument *doc = NULL);
+    void setFontType(const char *str, Binding::JSDocument *doc = NULL);
     bool setFontFile(const char *str);
 
     void clearRect(double, double, double, double);