cc: Plumb gpu/sw image decode limits as layer tree settings.

cc/tiles/gpu_image_decode_controller_unittest.cc

 // Copyright 2016 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/tiles/gpu_image_decode_controller.h"
 
 #include "cc/playback/draw_image.h"
 #include "cc/raster/tile_task.h"
 #include "cc/test/test_context_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 
 namespace cc {
 namespace {
 
+size_t kGpuMemoryLimitBytes = 96 * 1024 * 1024;
+class TestGpuImageDecodeController : public GpuImageDecodeController {
+ public:
+  explicit TestGpuImageDecodeController(ContextProvider* context)
+      : GpuImageDecodeController(context,
+                                 ResourceFormat::RGBA_8888,
+                                 kGpuMemoryLimitBytes) {}
+};
+
 sk_sp<SkImage> CreateImage(int width, int height) {
   SkBitmap bitmap;
   bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height));
   return SkImage::MakeFromBitmap(bitmap);
 }
 
 SkMatrix CreateMatrix(const SkSize& scale, bool is_decomposable) {
   SkMatrix matrix;
   matrix.setScale(scale.width(), scale.height());
 
@@ skipping 29 matching lines @@
 
 void ProcessTask(TileTask* task) {
   ScheduleTask(task);
   RunTask(task);
   CompleteTask(task);
 }
 
 TEST(GpuImageDecodeControllerTest, GetTaskForImageSameImage) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   sk_sp<SkImage> image = CreateImage(100, 100);
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 12 matching lines @@
   ProcessTask(task->dependencies()[0].get());
   ProcessTask(task.get());
 
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetTaskForImageDifferentImage) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> first_image = CreateImage(100, 100);
   DrawImage first_draw_image(
       first_image, SkIRect::MakeWH(first_image->width(), first_image->height()),
       quality, CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> first_task;
   bool need_unref = controller.GetTaskForImageAndRef(
       first_draw_image, ImageDecodeController::TracingInfo(), &first_task);
@@ skipping 17 matching lines @@
   ProcessTask(second_task->dependencies()[0].get());
   ProcessTask(second_task.get());
 
   controller.UnrefImage(first_draw_image);
   controller.UnrefImage(second_draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetTaskForImageAlreadyDecodedAndLocked) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 24 matching lines @@
   // Finally, complete the original decode task.
   CompleteTask(task->dependencies()[0].get());
 
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetTaskForImageAlreadyDecodedNotLocked) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 24 matching lines @@
 
   ProcessTask(another_task->dependencies()[0].get());
   ProcessTask(another_task.get());
 
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetTaskForImageAlreadyUploaded) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 14 matching lines @@
 
   CompleteTask(task.get());
 
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetTaskForImageCanceledGetsNewTask) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 27 matching lines @@
   ProcessTask(third_task->dependencies()[0].get());
   ProcessTask(third_task.get());
 
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest,
      GetTaskForImageCanceledWhileReffedGetsNewTask) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 26 matching lines @@
 
   // 3 Unrefs!
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, NoTaskForImageAlreadyFailedDecoding) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 12 matching lines @@
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
   EXPECT_FALSE(need_unref);
   EXPECT_EQ(another_task.get(), nullptr);
 
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetDecodedImageForDraw) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 13 matching lines @@
   EXPECT_FALSE(decoded_draw_image.is_at_raster_decode());
   EXPECT_FALSE(controller.DiscardableIsLockedForTesting(draw_image));
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, GetLargeDecodedImageForDraw) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(1, 24000);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
@@ skipping 14 matching lines @@
   EXPECT_TRUE(controller.DiscardableIsLockedForTesting(draw_image));
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
   controller.UnrefImage(draw_image);
   EXPECT_FALSE(controller.DiscardableIsLockedForTesting(draw_image));
 }
 
 TEST(GpuImageDecodeControllerTest, GetDecodedImageForDrawAtRasterDecode) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   controller.SetCachedItemLimitForTesting(0);
   controller.SetCachedBytesLimitForTesting(0);
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
@@ skipping 13 matching lines @@
   EXPECT_TRUE(decoded_draw_image.image()->isTextureBacked());
   EXPECT_TRUE(decoded_draw_image.is_at_raster_decode());
   EXPECT_FALSE(controller.DiscardableIsLockedForTesting(draw_image));
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, AtRasterUsedDirectlyIfSpaceAllows) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   controller.SetCachedItemLimitForTesting(0);
   controller.SetCachedBytesLimitForTesting(0);
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
@@ skipping 26 matching lines @@
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(another_task_needs_unref);
   EXPECT_FALSE(another_task);
   controller.UnrefImage(draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest,
      GetDecodedImageForDrawAtRasterDecodeMultipleTimes) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   controller.SetCachedItemLimitForTesting(0);
   controller.SetCachedBytesLimitForTesting(0);
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
@@ skipping 14 matching lines @@
             another_decoded_draw_image.image()->uniqueID());
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
   controller.DrawWithImageFinished(draw_image, another_decoded_draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest,
      GetLargeDecodedImageForDrawAtRasterDecodeMultipleTimes) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(1, 24000);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
 
   // Must hold context lock before calling GetDecodedImageForDraw /
   // DrawWithImageFinished.
@@ skipping 15 matching lines @@
   EXPECT_TRUE(second_decoded_draw_image.is_at_raster_decode());
   EXPECT_TRUE(controller.DiscardableIsLockedForTesting(draw_image));
 
   controller.DrawWithImageFinished(draw_image, second_decoded_draw_image);
   EXPECT_FALSE(controller.DiscardableIsLockedForTesting(draw_image));
 }
 
 TEST(GpuImageDecodeControllerTest, ZeroSizedImagesAreSkipped) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.f, 0.f), is_decomposable));
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_FALSE(task);
   EXPECT_FALSE(need_unref);
 
   // Must hold context lock before calling GetDecodedImageForDraw /
   // DrawWithImageFinished.
   ContextProvider::ScopedContextLock context_lock(context_provider.get());
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_FALSE(decoded_draw_image.image());
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, NonOverlappingSrcRectImagesAreSkipped) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(
       image, SkIRect::MakeXYWH(150, 150, image->width(), image->height()),
       quality, CreateMatrix(SkSize::Make(1.f, 1.f), is_decomposable));
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_FALSE(task);
   EXPECT_FALSE(need_unref);
 
   // Must hold context lock before calling GetDecodedImageForDraw /
   // DrawWithImageFinished.
   ContextProvider::ScopedContextLock context_lock(context_provider.get());
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_FALSE(decoded_draw_image.image());
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
 }
 
 TEST(GpuImageDecodeControllerTest, CanceledTasksDoNotCountAgainstBudget) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(
       image, SkIRect::MakeXYWH(0, 0, image->width(), image->height()), quality,
       CreateMatrix(SkSize::Make(1.f, 1.f), is_decomposable));
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_NE(0u, controller.GetBytesUsedForTesting());
   EXPECT_TRUE(task);
   EXPECT_TRUE(need_unref);
 
   ScheduleTask(task->dependencies()[0].get());
   CompleteTask(task->dependencies()[0].get());
   ScheduleTask(task.get());
   CompleteTask(task.get());
 
   controller.UnrefImage(draw_image);
   EXPECT_EQ(0u, controller.GetBytesUsedForTesting());
 }
 
 TEST(GpuImageDecodeControllerTest, ShouldAggressivelyFreeResources) {
   auto context_provider = TestContextProvider::Create();
   context_provider->BindToCurrentThread();
-  GpuImageDecodeController controller(context_provider.get(),
-                                      ResourceFormat::RGBA_8888);
+  TestGpuImageDecodeController controller(context_provider.get());
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   {
     bool need_unref = controller.GetTaskForImageAndRef(
@@ skipping 35 matching lines @@
   ProcessTask(task->dependencies()[0].get());
   ProcessTask(task.get());
 
   // The image should be in our cache after un-ref.
   controller.UnrefImage(draw_image);
   DCHECK_GT(controller.GetBytesUsedForTesting(), 0u);
 }
 
 }  // namespace
 }  // namespace cc