Demo slides for color presentation

samplecode/SampleApp.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleApp.h"
 
 #include "OverView.h"
@@ skipping 35 matching lines @@
 class GrContext;
 #endif
 
 const struct {
     SkColorType         fColorType;
     bool                fSRGB;
     const char*         fName;
 } gConfig[] = {
     { kN32_SkColorType,      false, "L32" },
     { kN32_SkColorType,       true, "S32" },
-    { kRGBA_F16_SkColorType,  true, "F16" },
+//    { kRGBA_F16_SkColorType,  true, "F16" },
 };
 
 static const char* find_config_name(const SkImageInfo& info) {
     for (const auto& config : gConfig) {
         if (config.fColorType == info.colorType() &&
             config.fSRGB == (info.colorSpace() != nullptr)) {
             return config.fName;
         }
     }
     return "???";
@@ skipping 783 matching lines @@
 
     fSaveToPdf = false;
     fSaveToSKP = false;
 
     int sinkID = this->getSinkID();
     fAppMenu = new SkOSMenu;
     fAppMenu->setTitle("Global Settings");
     int itemID;
 
     itemID = fAppMenu->appendList("ColorType", "ColorType", sinkID, 0,
-                                  gConfig[0].fName, gConfig[1].fName, gConfig[2].fName, nullptr);
+                                  gConfig[0].fName, gConfig[1].fName, nullptr);
     fAppMenu->assignKeyEquivalentToItem(itemID, 'C');
 
     itemID = fAppMenu->appendList("Device Type", "Device Type", sinkID, 0,
                                   "Raster",
                                   "OpenGL",
 #if SK_ANGLE
                                   "ANGLE",
 #endif
                                   nullptr);
     fAppMenu->assignKeyEquivalentToItem(itemID, 'd');
@@ skipping 181 matching lines @@
         paint.setColor(0x60FF00FF);
         paint.setStyle(SkPaint::kStroke_Style);
 
         for (SkScalar y = 0; y < height(); y += tile.height()) {
             for (SkScalar x = 0; x < width(); x += tile.width()) {
                 canvas->drawRect(SkRect::MakeXYWH(x, y, tile.width(), tile.height()), paint);
             }
         }
     }
 
+    {
+        int count = canvas->save();
+        canvas->resetMatrix();
+        SkPaint p;
+        p.setTextSize(36);
+        p.setColor(0xFFFFFFFF);
+        SkPaint p2;
+        p2.setTextSize(36);
+        p2.setColor(0xFF000000);
+        if (SkImageInfoIsGammaCorrect(info())) {
+            canvas->drawText("Gamma Correct: Yes", 18, 50, 900, p);
+            canvas->drawText("Gamma Correct: Yes", 18, 50, 850, p2);
+        } else {
+            canvas->drawText("Gamma Correct: No", 17, 50, 900, p);
+            canvas->drawText("Gamma Correct: No", 17, 50, 850, p2);
+        }
+        canvas->restoreToCount(count);
+    }
+
     if (fShowZoomer && !fSaveToPdf) {
         showZoomer(canvas);
     }
     if (fMagnify && !fSaveToPdf) {
         magnify(canvas);
     }
 
     if (fMeasureFPS && fMeasureFPS_Time) {
         this->updateTitle();
         this->postInvalDelay();
@@ skipping 1197 matching lines @@
 #ifdef SK_BUILD_FOR_MAC
     setenv("ANDROID_ROOT", "/android/device/data", 0);
 #endif
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 void application_term() {
     SkEvent::Term();
 }