Raster PictureLayerTiling with fractional translation

cc/raster/raster_source_unittest.cc

 // Copyright 2013 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.
 
 #include "cc/raster/raster_source.h"
 
 #include <stddef.h>
 
 #include <memory>
 
+#include "cc/base/scale_translate2d.h"
 #include "cc/test/fake_recording_source.h"
 #include "cc/test/skia_common.h"
 #include "cc/tiles/software_image_decode_cache.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkPixelRef.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size_conversions.h"
 
@@ skipping 262 matching lines @@
       // up to one pixel outside the content rect is guaranteed to be opaque.
       // Outside of that is undefined.
       gfx::Rect canvas_rect(content_rect);
       canvas_rect.Inset(0, 0, -1, -1);
 
       SkBitmap bitmap;
       bitmap.allocN32Pixels(canvas_rect.width(), canvas_rect.height());
       SkCanvas canvas(bitmap);
       canvas.clear(SK_ColorTRANSPARENT);
 
-      raster->PlaybackToCanvas(&canvas, ColorSpaceForTesting(), canvas_rect,
-                               canvas_rect, contents_scale,
-                               RasterSource::PlaybackSettings());
+      raster->PlaybackToCanvas(
+          &canvas, ColorSpaceForTesting(), canvas_rect, canvas_rect,
+          ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
+          RasterSource::PlaybackSettings());
 
       SkColor* pixels = reinterpret_cast<SkColor*>(bitmap.getPixels());
       int num_pixels = bitmap.width() * bitmap.height();
       bool all_white = true;
       for (int i = 0; i < num_pixels; ++i) {
         EXPECT_EQ(SkColorGetA(pixels[i]), 255u);
         all_white &= (SkColorGetR(pixels[i]) == 255);
         all_white &= (SkColorGetG(pixels[i]) == 255);
         all_white &= (SkColorGetB(pixels[i]) == 255);
       }
@@ skipping 30 matching lines @@
 
   SkBitmap bitmap;
   bitmap.allocN32Pixels(content_bounds.width(), content_bounds.height());
   SkCanvas canvas(bitmap);
   canvas.clear(SK_ColorTRANSPARENT);
 
   // Playback the full rect which should make everything white.
   gfx::Rect raster_full_rect(content_bounds);
   gfx::Rect playback_rect(content_bounds);
   raster->PlaybackToCanvas(&canvas, ColorSpaceForTesting(), raster_full_rect,
-                           playback_rect, contents_scale,
+                           playback_rect,
+                           ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
                            RasterSource::PlaybackSettings());
 
   {
     SkColor* pixels = reinterpret_cast<SkColor*>(bitmap.getPixels());
     for (int i = 0; i < bitmap.width(); ++i) {
       for (int j = 0; j < bitmap.height(); ++j) {
         SCOPED_TRACE(i);
         SCOPED_TRACE(j);
         EXPECT_EQ(255u, SkColorGetA(pixels[i + j * bitmap.width()]));
         EXPECT_EQ(255u, SkColorGetR(pixels[i + j * bitmap.width()]));
@@ skipping 11 matching lines @@
   recording_source->Rerecord();
 
   // Make a new RasterSource from the new recording.
   raster =
       RasterSource::CreateFromRecordingSource(recording_source.get(), false);
 
   // We're going to playback from "everything is black" into a smaller area,
   // that touches the edge pixels of the recording.
   playback_rect.Inset(1, 2, 0, 1);
   raster->PlaybackToCanvas(&canvas, ColorSpaceForTesting(), raster_full_rect,
-                           playback_rect, contents_scale,
+                           playback_rect,
+                           ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
                            RasterSource::PlaybackSettings());
 
   SkColor* pixels = reinterpret_cast<SkColor*>(bitmap.getPixels());
   int num_black = 0;
   int num_white = 0;
   for (int i = 0; i < bitmap.width(); ++i) {
     for (int j = 0; j < bitmap.height(); ++j) {
       SCOPED_TRACE(j);
       SCOPED_TRACE(i);
       bool expect_black = playback_rect.Contains(i, j);
@@ skipping 44 matching lines @@
 
   SkBitmap bitmap;
   bitmap.allocN32Pixels(content_bounds.width(), content_bounds.height());
   SkCanvas canvas(bitmap);
   canvas.clear(SK_ColorTRANSPARENT);
 
   // Playback the full rect which should make everything light gray (alpha=10).
   gfx::Rect raster_full_rect(content_bounds);
   gfx::Rect playback_rect(content_bounds);
   raster->PlaybackToCanvas(&canvas, ColorSpaceForTesting(), raster_full_rect,
-                           playback_rect, contents_scale,
+                           playback_rect,
+                           ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
                            RasterSource::PlaybackSettings());
 
   {
     SkColor* pixels = reinterpret_cast<SkColor*>(bitmap.getPixels());
     for (int i = 0; i < bitmap.width(); ++i) {
       for (int j = 0; j < bitmap.height(); ++j) {
         SCOPED_TRACE(i);
         SCOPED_TRACE(j);
         EXPECT_EQ(alpha_dark, SkColorGetA(pixels[i + j * bitmap.width()]));
         EXPECT_EQ(alpha_dark, SkColorGetR(pixels[i + j * bitmap.width()]));
@@ skipping 19 matching lines @@
   // Make a new RasterSource from the new recording.
   raster = RasterSource::CreateFromRecordingSource(recording_source_light.get(),
                                                    false);
 
   // We're going to playback from alpha(18) white rectangle into a smaller area
   // of the recording resulting in a smaller lighter white rectangle over a
   // darker white background rectangle.
   playback_rect =
       gfx::Rect(gfx::ScaleToCeiledSize(partial_bounds, contents_scale));
   raster->PlaybackToCanvas(&canvas, ColorSpaceForTesting(), raster_full_rect,
-                           playback_rect, contents_scale,
+                           playback_rect,
+                           ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
                            RasterSource::PlaybackSettings());
 
   // Test that the whole playback_rect was cleared and repainted with new alpha.
   SkColor* pixels = reinterpret_cast<SkColor*>(bitmap.getPixels());
   for (int i = 0; i < playback_rect.width(); ++i) {
     for (int j = 0; j < playback_rect.height(); ++j) {
       SCOPED_TRACE(j);
       SCOPED_TRACE(i);
       EXPECT_EQ(alpha_light, SkColorGetA(pixels[i + j * bitmap.width()]));
       EXPECT_EQ(alpha_light, SkColorGetR(pixels[i + j * bitmap.width()]));
@@ skipping 20 matching lines @@
       gfx::ScaleToCeiledSize(layer_bounds, contents_scale));
 
   gfx::Rect canvas_rect(content_bounds);
   canvas_rect.Inset(0, 0, -1, -1);
 
   SkBitmap bitmap;
   bitmap.allocN32Pixels(canvas_rect.width(), canvas_rect.height());
   SkCanvas canvas(bitmap);
 
   raster->PlaybackToCanvas(&canvas, ColorSpaceForTesting(), canvas_rect,
-                           canvas_rect, contents_scale,
+                           canvas_rect,
+                           ScaleTranslate2d(contents_scale, gfx::Vector2dF()),
                            RasterSource::PlaybackSettings());
 
   SkColor* pixels = reinterpret_cast<SkColor*>(bitmap.getPixels());
   int num_pixels = bitmap.width() * bitmap.height();
   for (int i = 0; i < num_pixels; ++i) {
     EXPECT_EQ(SkColorGetA(pixels[i]), 0u);
   }
 }
 
 TEST(RasterSourceTest, GetPictureMemoryUsageIncludesClientReportedMemory) {
@@ skipping 53 matching lines @@
 
   SkBitmap bitmap;
   bitmap.allocN32Pixels(size.width() * 0.5f, size.height() * 0.25f);
   SkCanvas canvas(bitmap);
   canvas.scale(0.5f, 0.25f);
 
   RasterSource::PlaybackSettings settings;
   settings.playback_to_shared_canvas = true;
   settings.use_image_hijack_canvas = true;
   raster_source->PlaybackToCanvas(&canvas, ColorSpaceForTesting(),
-                                  gfx::Rect(size), gfx::Rect(size), 1.f,
-                                  settings);
+                                  gfx::Rect(size), gfx::Rect(size),
+                                  ScaleTranslate2d(), settings);
 
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(0, 0));
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(49, 0));
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(0, 24));
   EXPECT_EQ(SK_ColorGREEN, bitmap.getColor(49, 24));
   for (int x = 0; x < 49; ++x)
     EXPECT_EQ(SK_ColorRED, bitmap.getColor(x, 12));
   for (int y = 0; y < 24; ++y)
     EXPECT_EQ(SK_ColorRED, bitmap.getColor(24, y));
 }
 
 }  // namespace
 }  // namespace cc