dl_test_snippets.h

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_DISPLAY_LIST_TESTING_DL_TEST_SNIPPETS_H_
#define FLUTTER_DISPLAY_LIST_TESTING_DL_TEST_SNIPPETS_H_
 
#include "flutter/display_list/display_list.h"
#include "flutter/display_list/dl_builder.h"
#include "flutter/display_list/effects/color_filters/dl_blend_color_filter.h"
#include "flutter/display_list/effects/dl_color_sources.h"
#include "flutter/display_list/effects/dl_image_filters.h"
#include "flutter/display_list/effects/dl_runtime_effect_skia.h"
#include "flutter/display_list/image/dl_image_skia.h"
#include "flutter/testing/testing.h"
 
#include "third_party/skia/include/core/SkPath.h"
#include "third_party/skia/include/core/SkRRect.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/effects/SkImageFilters.h"
#include "third_party/skia/include/effects/SkRuntimeEffect.h"
 
namespace flutter {
namespace testing {
 
sk_sp<DisplayList> GetSampleDisplayList();
sk_sp<DisplayList> GetSampleDisplayList(int ops);
sk_sp<DisplayList> GetSampleNestedDisplayList();
sk_sp<DlImage> MakeTestImage(int w, int h, int checker_size);
sk_sp<DlImage> MakeTestImage(int w, int h, DlColor color);
 
typedef const std::function<void(DlOpReceiver&)> DlInvoker;
 
constexpr DlPoint kEndPoints[] = {
    {0, 0},
    {100, 100},
};
const DlColor kColors[] = {
    DlColor::kGreen(),
    DlColor::kYellow(),
    DlColor::kBlue(),
};
constexpr float kStops[] = {
    0.0,
    0.5,
    1.0,
};
 
// clang-format off
constexpr float kRotateColorMatrix[20] = {
    0, 1, 0, 0, 0,
    0, 0, 1, 0, 0,
    1, 0, 0, 0, 0,
    0, 0, 0, 1, 0,
};
constexpr float kInvertColorMatrix[20] = {
    -1.0,    0,    0, 1.0,   0,
       0, -1.0,    0, 1.0,   0,
       0,    0, -1.0, 1.0,   0,
     1.0,  1.0,  1.0, 1.0,   0,
};
// clang-format on
 
constexpr DlPoint kTestPoints[] = {
    {10, 10},
    {20, 20},
    {10, 20},
    {20, 10},
};
#define TestPointCount sizeof(kTestPoints) / (sizeof(kTestPoints[0]))
 
static DlImageSampling kNearestSampling = DlImageSampling::kNearestNeighbor;
static DlImageSampling kLinearSampling = DlImageSampling::kLinear;
 
static auto kTestImage1 = MakeTestImage(40, 40, 5);
static auto kTestImage2 = MakeTestImage(50, 50, 5);
static auto kTestSkImage =
    MakeTestImage(30, 30, 5)->asSkiaImage()->skia_image();
 
static const std::shared_ptr<DlColorSource> kTestSource1 =
    DlColorSource::MakeImage(kTestImage1,
                             DlTileMode::kClamp,
                             DlTileMode::kMirror,
                             kLinearSampling);
static const std::shared_ptr<DlColorSource> kTestSource2 =
    DlColorSource::MakeLinear(kEndPoints[0],
                              kEndPoints[1],
                              3,
                              kColors,
                              kStops,
                              DlTileMode::kMirror);
static const std::shared_ptr<DlColorSource> kTestSource3 =
    DlColorSource::MakeRadial(kEndPoints[0],
                              10.0,
                              3,
                              kColors,
                              kStops,
                              DlTileMode::kMirror);
static const std::shared_ptr<DlColorSource> kTestSource4 =
    DlColorSource::MakeConical(kEndPoints[0],
                               10.0,
                               kEndPoints[1],
                               200.0,
                               3,
                               kColors,
                               kStops,
                               DlTileMode::kDecal);
static const std::shared_ptr<DlColorSource> kTestSource5 =
    DlColorSource::MakeSweep(kEndPoints[0],
                             0.0,
                             360.0,
                             3,
                             kColors,
                             kStops,
                             DlTileMode::kDecal);
 
static const auto kTestBlendColorFilter1 =
    DlColorFilter::MakeBlend(DlColor::kRed(), DlBlendMode::kDstATop);
static const auto kTestBlendColorFilter2 =
    DlColorFilter::MakeBlend(DlColor::kBlue(), DlBlendMode::kDstATop);
static const auto kTestBlendColorFilter3 =
    DlColorFilter::MakeBlend(DlColor::kRed(), DlBlendMode::kDstOver);
static const auto kTestMatrixColorFilter1 =
    DlColorFilter::MakeMatrix(kRotateColorMatrix);
static const auto kTestMatrixColorFilter2 =
    DlColorFilter::MakeMatrix(kInvertColorMatrix);
 
static const DlBlurImageFilter kTestBlurImageFilter1(5.0,
                                                     5.0,
                                                     DlTileMode::kClamp);
static const DlBlurImageFilter kTestBlurImageFilter2(6.0,
                                                     5.0,
                                                     DlTileMode::kClamp);
static const DlBlurImageFilter kTestBlurImageFilter3(5.0,
                                                     6.0,
                                                     DlTileMode::kClamp);
static const DlBlurImageFilter kTestBlurImageFilter4(5.0,
                                                     5.0,
                                                     DlTileMode::kDecal);
static const DlDilateImageFilter kTestDilateImageFilter1(5.0, 5.0);
static const DlDilateImageFilter kTestDilateImageFilter2(6.0, 5.0);
static const DlDilateImageFilter kTestDilateImageFilter3(5.0, 6.0);
static const DlErodeImageFilter kTestErodeImageFilter1(4.0, 4.0);
static const DlErodeImageFilter kTestErodeImageFilter2(4.0, 3.0);
static const DlErodeImageFilter kTestErodeImageFilter3(3.0, 4.0);
static const DlMatrixImageFilter kTestMatrixImageFilter1(
    DlMatrix::MakeRotationZ(DlDegrees(45)),
    kNearestSampling);
static const DlMatrixImageFilter kTestMatrixImageFilter2(
    DlMatrix::MakeRotationZ(DlDegrees(85)),
    kNearestSampling);
static const DlMatrixImageFilter kTestMatrixImageFilter3(
    DlMatrix::MakeRotationZ(DlDegrees(45)),
    kLinearSampling);
static const DlComposeImageFilter kTestComposeImageFilter1(
    kTestBlurImageFilter1,
    kTestMatrixImageFilter1);
static const DlComposeImageFilter kTestComposeImageFilter2(
    kTestBlurImageFilter2,
    kTestMatrixImageFilter1);
static const DlComposeImageFilter kTestComposeImageFilter3(
    kTestBlurImageFilter1,
    kTestMatrixImageFilter2);
static const DlColorFilterImageFilter kTestCFImageFilter1(
    kTestBlendColorFilter1);
static const DlColorFilterImageFilter kTestCFImageFilter2(
    kTestBlendColorFilter2);
static const DlBlurMaskFilter kTestMaskFilter1(DlBlurStyle::kNormal, 3.0);
static const DlBlurMaskFilter kTestMaskFilter2(DlBlurStyle::kNormal, 5.0);
static const DlBlurMaskFilter kTestMaskFilter3(DlBlurStyle::kSolid, 3.0);
static const DlBlurMaskFilter kTestMaskFilter4(DlBlurStyle::kInner, 3.0);
static const DlBlurMaskFilter kTestMaskFilter5(DlBlurStyle::kOuter, 3.0);
constexpr DlRect kTestBounds = DlRect::MakeLTRB(10, 10, 50, 60);
constexpr SkRect kTestSkBounds = SkRect::MakeLTRB(10, 10, 50, 60);
static const DlRoundRect kTestRRect =
    DlRoundRect::MakeRectXY(kTestBounds, 5, 5);
static const DlRoundSuperellipse kTestRSuperellipse =
    DlRoundSuperellipse::MakeRectXY(kTestBounds, 3, 3);
static const SkRRect kTestSkRRect = SkRRect::MakeRectXY(kTestSkBounds, 5, 5);
static const SkRRect kTestRRectRect = SkRRect::MakeRect(kTestSkBounds);
static const DlRoundRect kTestInnerRRect =
    DlRoundRect::MakeRectXY(kTestBounds.Expand(-5, -5), 2, 2);
static const SkRRect kTestSkInnerRRect =
    SkRRect::MakeRectXY(kTestSkBounds.makeInset(5, 5), 2, 2);
static const DlPath kTestPathRect = DlPath::MakeRect(kTestBounds);
static const DlPath kTestPathOval = DlPath::MakeOval(kTestBounds);
static const DlPath kTestPathRRect = DlPath::MakeRoundRect(kTestRRect);
static const DlPath kTestPath1 =
    DlPath(SkPath::Polygon({{0, 0}, {10, 10}, {10, 0}, {0, 10}}, true));
static const DlPath kTestPath2 =
    DlPath(SkPath::Polygon({{0, 0}, {10, 10}, {0, 10}, {10, 0}}, true));
static const DlPath kTestPath3 =
    DlPath(SkPath::Polygon({{0, 0}, {10, 10}, {10, 0}, {0, 10}}, false));
 
static const std::shared_ptr<DlVertices> kTestVertices1 =
    DlVertices::Make(DlVertexMode::kTriangles,  //
                     3,
                     kTestPoints,
                     nullptr,
                     kColors);
static const std::shared_ptr<DlVertices> kTestVertices2 =
    DlVertices::Make(DlVertexMode::kTriangleFan,  //
                     3,
                     kTestPoints,
                     nullptr,
                     kColors);
 
static sk_sp<DisplayList> MakeTestDisplayList(int w, int h, SkColor color) {
  DisplayListBuilder builder;
  builder.DrawRect(DlRect::MakeWH(w, h), DlPaint(DlColor(color)));
  return builder.Build();
}
static sk_sp<DisplayList> TestDisplayList1 =
    MakeTestDisplayList(20, 20, SK_ColorGREEN);
static sk_sp<DisplayList> TestDisplayList2 =
    MakeTestDisplayList(25, 25, SK_ColorBLUE);
 
static const sk_sp<DlRuntimeEffect> kTestRuntimeEffect1 =
    DlRuntimeEffectSkia::Make(
        SkRuntimeEffect::MakeForShader(
            SkString("vec4 main(vec2 p) { return vec4(0); }"))
            .effect);
static const sk_sp<DlRuntimeEffect> kTestRuntimeEffect2 =
    DlRuntimeEffectSkia::Make(
        SkRuntimeEffect::MakeForShader(
            SkString("vec4 main(vec2 p) { return vec4(1); }"))
            .effect);
 
SkFont CreateTestFontOfSize(DlScalar scalar);
 
sk_sp<SkTextBlob> GetTestTextBlob(const std::string& str,
                                  DlScalar font_size = 20.0f);
sk_sp<SkTextBlob> GetTestTextBlob(int index);
#if IMPELLER_SUPPORTS_RENDERING
std::shared_ptr<impeller::TextFrame> GetTestTextFrame(int index);
#endif
 
struct DisplayListInvocation {
  // ----------------------------------
  // Required fields for initialization
  uint32_t op_count_;
  size_t byte_count_;
 
  uint32_t depth_op_count_;
 
  DlInvoker invoker_;
  // ----------------------------------
 
  // ----------------------------------
  // Optional fields for initialization
  uint32_t additional_depth_ = 0u;
  uint32_t render_op_cost_override_ = 0u;
  // ----------------------------------
 
  bool is_empty() { return byte_count_ == 0; }
 
  uint32_t op_count() { return op_count_; }
  // byte count for the individual ops, no DisplayList overhead
  size_t raw_byte_count() { return byte_count_; }
  // byte count for the ops with DisplayList overhead, comparable
  // to |DisplayList.byte_count().
  size_t byte_count() { return sizeof(DisplayList) + byte_count_; }
 
  uint32_t depth_accumulated(uint32_t depth_scale = 1u) {
    return depth_op_count_ * depth_scale + additional_depth_;
  }
  uint32_t depth_op_count() { return depth_op_count_; }
  uint32_t additional_depth() { return additional_depth_; }
  uint32_t adjust_render_op_depth_cost(uint32_t previous_cost) {
    return render_op_cost_override_ == 0u  //
               ? previous_cost
               : render_op_cost_override_;
  }
 
  void Invoke(DlOpReceiver& builder) { invoker_(builder); }
};
 
struct DisplayListInvocationGroup {
  std::string op_name;
  std::vector<DisplayListInvocation> variants;
};
 
std::vector<DisplayListInvocationGroup> CreateAllRenderingOps();
std::vector<DisplayListInvocationGroup> CreateAllGroups();
 
}  // namespace testing
}  // namespace flutter
 
#endif  // FLUTTER_DISPLAY_LIST_TESTING_DL_TEST_SNIPPETS_H_