Roll skia to 8cc209111876b7c78b5ec577c9221d8ed5e21024

skia/ext/platform_canvas_unittest.cc

Index: skia/ext/platform_canvas_unittest.cc
diff --git a/skia/ext/platform_canvas_unittest.cc b/skia/ext/platform_canvas_unittest.cc
deleted file mode 100644
index 560d47f2d751136b96d51364137faf83d057ecbe..0000000000000000000000000000000000000000
--- a/skia/ext/platform_canvas_unittest.cc
+++ /dev/null
@@ -1,453 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// TODO(awalker): clean up the const/non-const reference handling in this test
-
-#include "skia/ext/platform_canvas.h"
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "build/build_config.h"
-#include "skia/ext/platform_device.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkColorPriv.h"
-#include "third_party/skia/include/core/SkPixelRef.h"
-
-#if defined(OS_MACOSX)
-#import <ApplicationServices/ApplicationServices.h>
-#endif
-
-#if !defined(OS_WIN)
-#include <unistd.h>
-#endif
-
-namespace skia {
-
-namespace {
-
-bool IsOfColor(const SkBitmap& bitmap, int x, int y, uint32_t color) {
-  // For masking out the alpha values.
-  static uint32_t alpha_mask =
-      static_cast<uint32_t>(SK_A32_MASK) << SK_A32_SHIFT;
-  return (*bitmap.getAddr32(x, y) | alpha_mask) == (color | alpha_mask);
-}
-
-// Return true if the canvas is filled to canvas_color, and contains a single
-// rectangle filled to rect_color. This function ignores the alpha channel,
-// since Windows will sometimes clear the alpha channel when drawing, and we
-// will fix that up later in cases it's necessary.
-bool VerifyRect(const PlatformCanvas& canvas,
-                uint32_t canvas_color, uint32_t rect_color,
-                int x, int y, int w, int h) {
-  SkBaseDevice* device = skia::GetTopDevice(canvas);
-  const SkBitmap& bitmap = device->accessBitmap(false);
-  SkAutoLockPixels lock(bitmap);
-
-  for (int cur_y = 0; cur_y < bitmap.height(); cur_y++) {
-    for (int cur_x = 0; cur_x < bitmap.width(); cur_x++) {
-      if (cur_x >= x && cur_x < x + w &&
-          cur_y >= y && cur_y < y + h) {
-        // Inside the square should be rect_color
-        if (!IsOfColor(bitmap, cur_x, cur_y, rect_color))
-          return false;
-      } else {
-        // Outside the square should be canvas_color
-        if (!IsOfColor(bitmap, cur_x, cur_y, canvas_color))
-          return false;
-      }
-    }
-  }
-  return true;
-}
-
-#if !defined(OS_MACOSX)
-// Return true if canvas has something that passes for a rounded-corner
-// rectangle. Basically, we're just checking to make sure that the pixels in the
-// middle are of rect_color and pixels in the corners are of canvas_color.
-bool VerifyRoundedRect(const PlatformCanvas& canvas,
-                       uint32_t canvas_color,
-                       uint32_t rect_color,
-                       int x,
-                       int y,
-                       int w,
-                       int h) {
-  SkBaseDevice* device = skia::GetTopDevice(canvas);
-  const SkBitmap& bitmap = device->accessBitmap(false);
-  SkAutoLockPixels lock(bitmap);
-
-  // Check corner points first. They should be of canvas_color.
-  if (!IsOfColor(bitmap, x, y, canvas_color)) return false;
-  if (!IsOfColor(bitmap, x + w, y, canvas_color)) return false;
-  if (!IsOfColor(bitmap, x, y + h, canvas_color)) return false;
-  if (!IsOfColor(bitmap, x + w, y, canvas_color)) return false;
-
-  // Check middle points. They should be of rect_color.
-  if (!IsOfColor(bitmap, (x + w / 2), y, rect_color)) return false;
-  if (!IsOfColor(bitmap, x, (y + h / 2), rect_color)) return false;
-  if (!IsOfColor(bitmap, x + w, (y + h / 2), rect_color)) return false;
-  if (!IsOfColor(bitmap, (x + w / 2), y + h, rect_color)) return false;
-
-  return true;
-}
-#endif
-
-// Checks whether there is a white canvas with a black square at the given
-// location in pixels (not in the canvas coordinate system).
-bool VerifyBlackRect(const PlatformCanvas& canvas, int x, int y, int w, int h) {
-  return VerifyRect(canvas, SK_ColorWHITE, SK_ColorBLACK, x, y, w, h);
-}
-
-// Check that every pixel in the canvas is a single color.
-bool VerifyCanvasColor(const PlatformCanvas& canvas, uint32_t canvas_color) {
-  return VerifyRect(canvas, canvas_color, 0, 0, 0, 0, 0);
-}
-
-#if defined(OS_WIN)
-void DrawNativeRect(PlatformCanvas& canvas, int x, int y, int w, int h) {
-  skia::ScopedPlatformPaint scoped_platform_paint(&canvas);
-  HDC dc = scoped_platform_paint.GetPlatformSurface();
-
-  RECT inner_rc;
-  inner_rc.left = x;
-  inner_rc.top = y;
-  inner_rc.right = x + w;
-  inner_rc.bottom = y + h;
-  FillRect(dc, &inner_rc, reinterpret_cast<HBRUSH>(GetStockObject(BLACK_BRUSH)));
-}
-#elif defined(OS_MACOSX)
-void DrawNativeRect(PlatformCanvas& canvas, int x, int y, int w, int h) {
-  skia::ScopedPlatformPaint scoped_platform_paint(&canvas);
-  CGContextRef context = scoped_platform_paint.GetPlatformSurface();
-
-  CGRect inner_rc = CGRectMake(x, y, w, h);
-  // RGBA opaque black
-  CGColorRef black = CGColorCreateGenericRGB(0.0, 0.0, 0.0, 1.0);
-  CGContextSetFillColorWithColor(context, black);
-  CGColorRelease(black);
-  CGContextFillRect(context, inner_rc);
-}
-#else
-void DrawNativeRect(PlatformCanvas& canvas, int x, int y, int w, int h) {
-  NOTIMPLEMENTED();
-}
-#endif
-
-// Clips the contents of the canvas to the given rectangle. This will be
-// intersected with any existing clip.
-void AddClip(PlatformCanvas& canvas, int x, int y, int w, int h) {
-  SkRect rect;
-  rect.set(SkIntToScalar(x), SkIntToScalar(y),
-           SkIntToScalar(x + w), SkIntToScalar(y + h));
-  canvas.clipRect(rect);
-}
-
-class LayerSaver {
- public:
-  LayerSaver(PlatformCanvas& canvas, int x, int y, int w, int h)
-      : canvas_(canvas),
-        x_(x),
-        y_(y),
-        w_(w),
-        h_(h) {
-    SkRect bounds;
-    bounds.set(SkIntToScalar(x_), SkIntToScalar(y_),
-               SkIntToScalar(right()), SkIntToScalar(bottom()));
-    canvas_.saveLayer(&bounds, NULL);
-    canvas.clear(SkColorSetARGB(0, 0, 0, 0));
-  }
-
-  ~LayerSaver() {
-    canvas_.restore();
-  }
-
-  int x() const { return x_; }
-  int y() const { return y_; }
-  int w() const { return w_; }
-  int h() const { return h_; }
-
-  // Returns the EXCLUSIVE far bounds of the layer.
-  int right() const { return x_ + w_; }
-  int bottom() const { return y_ + h_; }
-
- private:
-  PlatformCanvas& canvas_;
-  int x_, y_, w_, h_;
-};
-
-// Size used for making layers in many of the below tests.
-const int kLayerX = 2;
-const int kLayerY = 3;
-const int kLayerW = 9;
-const int kLayerH = 7;
-
-// Size used by some tests to draw a rectangle inside the layer.
-const int kInnerX = 4;
-const int kInnerY = 5;
-const int kInnerW = 2;
-const int kInnerH = 3;
-
-}
-
-// This just checks that our checking code is working properly, it just uses
-// regular skia primitives.
-TEST(PlatformCanvas, SkLayer) {
-  // Create the canvas initialized to opaque white.
-  RefPtr<SkCanvas> canvas = AdoptRef(CreatePlatformCanvas(16, 16, true));
-  canvas->drawColor(SK_ColorWHITE);
-
-  // Make a layer and fill it completely to make sure that the bounds are
-  // correct.
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    canvas->drawColor(SK_ColorBLACK);
-  }
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kLayerX, kLayerY, kLayerW, kLayerH));
-}
-
-// Test native clipping.
-TEST(PlatformCanvas, ClipRegion) {
-  // Initialize a white canvas
-  RefPtr<SkCanvas> canvas = AdoptRef(CreatePlatformCanvas(16, 16, true));
-  canvas->drawColor(SK_ColorWHITE);
-  EXPECT_TRUE(VerifyCanvasColor(*canvas, SK_ColorWHITE));
-
-  // Test that initially the canvas has no clip region, by filling it
-  // with a black rectangle.
-  // Note: Don't use LayerSaver, since internally it sets a clip region.
-  DrawNativeRect(*canvas, 0, 0, 16, 16);
-  EXPECT_TRUE(VerifyCanvasColor(*canvas, SK_ColorBLACK));
-
-  // Test that intersecting disjoint clip rectangles sets an empty clip region
-  canvas->drawColor(SK_ColorWHITE);
-  EXPECT_TRUE(VerifyCanvasColor(*canvas, SK_ColorWHITE));
-  {
-    LayerSaver layer(*canvas, 0, 0, 16, 16);
-    AddClip(*canvas, 2, 3, 4, 5);
-    AddClip(*canvas, 4, 9, 10, 10);
-    DrawNativeRect(*canvas, 0, 0, 16, 16);
-  }
-  EXPECT_TRUE(VerifyCanvasColor(*canvas, SK_ColorWHITE));
-}
-
-// Test the layers get filled properly by native rendering.
-TEST(PlatformCanvas, FillLayer) {
-  // Create the canvas initialized to opaque white.
-  RefPtr<SkCanvas> canvas = AdoptRef(CreatePlatformCanvas(16, 16, true));
-
-  // Make a layer and fill it completely to make sure that the bounds are
-  // correct.
-  canvas->drawColor(SK_ColorWHITE);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    DrawNativeRect(*canvas, 0, 0, 100, 100);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), 0, 0, 100, 100);
-#endif
-  }
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kLayerX, kLayerY, kLayerW, kLayerH));
-
-  // Make a layer and fill it partially to make sure the translation is correct.
-  canvas->drawColor(SK_ColorWHITE);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    DrawNativeRect(*canvas, kInnerX, kInnerY, kInnerW, kInnerH);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), kInnerX, kInnerY, kInnerW, kInnerH);
-#endif
-  }
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kInnerX, kInnerY, kInnerW, kInnerH));
-
-  // Add a clip on the layer and fill to make sure clip is correct.
-  canvas->drawColor(SK_ColorWHITE);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    canvas->save();
-    AddClip(*canvas, kInnerX, kInnerY, kInnerW, kInnerH);
-    DrawNativeRect(*canvas, 0, 0, 100, 100);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), kInnerX, kInnerY, kInnerW, kInnerH);
-#endif
-    canvas->restore();
-  }
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kInnerX, kInnerY, kInnerW, kInnerH));
-
-  // Add a clip and then make the layer to make sure the clip is correct.
-  canvas->drawColor(SK_ColorWHITE);
-  canvas->save();
-  AddClip(*canvas, kInnerX, kInnerY, kInnerW, kInnerH);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    DrawNativeRect(*canvas, 0, 0, 100, 100);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), 0, 0, 100, 100);
-#endif
-  }
-  canvas->restore();
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kInnerX, kInnerY, kInnerW, kInnerH));
-}
-
-// Test that translation + make layer works properly.
-TEST(PlatformCanvas, TranslateLayer) {
-  // Create the canvas initialized to opaque white.
-  RefPtr<SkCanvas> canvas = AdoptRef(CreatePlatformCanvas(16, 16, true));
-
-  // Make a layer and fill it completely to make sure that the bounds are
-  // correct.
-  canvas->drawColor(SK_ColorWHITE);
-  canvas->save();
-  canvas->translate(1, 1);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    DrawNativeRect(*canvas, 0, 0, 100, 100);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), 0, 0, 100, 100);
-#endif
-  }
-  canvas->restore();
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kLayerX + 1, kLayerY + 1,
-                              kLayerW, kLayerH));
-
-  // Translate then make the layer.
-  canvas->drawColor(SK_ColorWHITE);
-  canvas->save();
-  canvas->translate(1, 1);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    DrawNativeRect(*canvas, kInnerX, kInnerY, kInnerW, kInnerH);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), kInnerX, kInnerY, kInnerW, kInnerH);
-#endif
-  }
-  canvas->restore();
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kInnerX + 1, kInnerY + 1,
-                              kInnerW, kInnerH));
-
-  // Make the layer then translate.
-  canvas->drawColor(SK_ColorWHITE);
-  canvas->save();
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    canvas->translate(1, 1);
-    DrawNativeRect(*canvas, kInnerX, kInnerY, kInnerW, kInnerH);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), kInnerX, kInnerY, kInnerW, kInnerH);
-#endif
-  }
-  canvas->restore();
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kInnerX + 1, kInnerY + 1,
-                              kInnerW, kInnerH));
-
-  // Translate both before and after, and have a clip.
-  canvas->drawColor(SK_ColorWHITE);
-  canvas->save();
-  canvas->translate(1, 1);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    canvas->drawColor(SK_ColorWHITE);
-    canvas->translate(1, 1);
-    AddClip(*canvas, kInnerX + 1, kInnerY + 1, kInnerW - 1, kInnerH - 1);
-    DrawNativeRect(*canvas, 0, 0, 100, 100);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), kLayerX, kLayerY, kLayerW, kLayerH);
-#endif
-  }
-  canvas->restore();
-  EXPECT_TRUE(VerifyBlackRect(*canvas, kInnerX + 3, kInnerY + 3,
-                              kInnerW - 1, kInnerH - 1));
-
-// TODO(dglazkov): Figure out why this fails on Mac (antialiased clipping?),
-// modify test and remove this guard.
-#if !defined(OS_MACOSX)
-  // Translate both before and after, and have a path clip.
-  canvas->drawColor(SK_ColorWHITE);
-  canvas->save();
-  canvas->translate(1, 1);
-  {
-    LayerSaver layer(*canvas, kLayerX, kLayerY, kLayerW, kLayerH);
-    canvas->drawColor(SK_ColorWHITE);
-    canvas->translate(1, 1);
-
-    SkPath path;
-    SkRect rect;
-    rect.iset(kInnerX - 1, kInnerY - 1,
-              kInnerX + kInnerW, kInnerY + kInnerH);
-    const SkScalar kRadius = 2.0;
-    path.addRoundRect(rect, kRadius, kRadius);
-    canvas->clipPath(path);
-
-    DrawNativeRect(*canvas, 0, 0, 100, 100);
-#if defined(OS_WIN)
-    MakeOpaque(canvas.get(), kLayerX, kLayerY, kLayerW, kLayerH);
-#endif
-  }
-  canvas->restore();
-  EXPECT_TRUE(VerifyRoundedRect(*canvas, SK_ColorWHITE, SK_ColorBLACK,
-                                kInnerX + 1, kInnerY + 1, kInnerW, kInnerH));
-#endif
-}
-
-TEST(PlatformBitmapTest, PlatformBitmap) {
-  const int kWidth = 400;
-  const int kHeight = 300;
-  scoped_ptr<PlatformBitmap> platform_bitmap(new PlatformBitmap);
-
-  EXPECT_TRUE(0 == platform_bitmap->GetSurface());
-  EXPECT_TRUE(platform_bitmap->GetBitmap().empty());
-  EXPECT_TRUE(platform_bitmap->GetBitmap().isNull());
-
-  EXPECT_TRUE(platform_bitmap->Allocate(kWidth, kHeight, /*is_opaque=*/false));
-
-  EXPECT_TRUE(0 != platform_bitmap->GetSurface());
-  EXPECT_FALSE(platform_bitmap->GetBitmap().empty());
-  EXPECT_FALSE(platform_bitmap->GetBitmap().isNull());
-  EXPECT_EQ(kWidth, platform_bitmap->GetBitmap().width());
-  EXPECT_EQ(kHeight, platform_bitmap->GetBitmap().height());
-  EXPECT_LE(static_cast<size_t>(platform_bitmap->GetBitmap().width()*4),
-            platform_bitmap->GetBitmap().rowBytes());
-  EXPECT_EQ(kN32_SkColorType,  // Same for all platforms.
-            platform_bitmap->GetBitmap().colorType());
-  EXPECT_TRUE(platform_bitmap->GetBitmap().lockPixelsAreWritable());
-#if defined(SK_DEBUG)
-  EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->isLocked());
-#endif
-  EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->unique());
-
-  *(platform_bitmap->GetBitmap().getAddr32(10, 20)) = 0xDEED1020;
-  *(platform_bitmap->GetBitmap().getAddr32(20, 30)) = 0xDEED2030;
-
-  SkBitmap sk_bitmap = platform_bitmap->GetBitmap();
-  sk_bitmap.lockPixels();
-
-  EXPECT_FALSE(platform_bitmap->GetBitmap().pixelRef()->unique());
-  EXPECT_FALSE(sk_bitmap.pixelRef()->unique());
-
-  EXPECT_EQ(0xDEED1020, *sk_bitmap.getAddr32(10, 20));
-  EXPECT_EQ(0xDEED2030, *sk_bitmap.getAddr32(20, 30));
-
-  *(platform_bitmap->GetBitmap().getAddr32(30, 40)) = 0xDEED3040;
-
-  // The SkBitmaps derived from a PlatformBitmap must be capable of outliving
-  // the PlatformBitmap.
-  platform_bitmap.reset();
-
-  EXPECT_TRUE(sk_bitmap.pixelRef()->unique());
-
-  EXPECT_EQ(0xDEED1020, *sk_bitmap.getAddr32(10, 20));
-  EXPECT_EQ(0xDEED2030, *sk_bitmap.getAddr32(20, 30));
-  EXPECT_EQ(0xDEED3040, *sk_bitmap.getAddr32(30, 40));
-  sk_bitmap.unlockPixels();
-
-  EXPECT_EQ(NULL, sk_bitmap.getPixels());
-
-  sk_bitmap.lockPixels();
-  EXPECT_EQ(0xDEED1020, *sk_bitmap.getAddr32(10, 20));
-  EXPECT_EQ(0xDEED2030, *sk_bitmap.getAddr32(20, 30));
-  EXPECT_EQ(0xDEED3040, *sk_bitmap.getAddr32(30, 40));
-  sk_bitmap.unlockPixels();
-}
-
-
-}  // namespace skia