cc/test/pixel_test.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/file_util.h"
   6 #include "cc/output/gl_renderer.h"
   7 #include "cc/output/software_renderer.h"
   8 #include "cc/quads/render_pass.h"
   9 #include "cc/test/pixel_comparator.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11 #include "ui/gfx/size.h"
  12 #include "ui/gl/gl_implementation.h"
  13
  14 #ifndef CC_TEST_PIXEL_TEST_H_
  15 #define CC_TEST_PIXEL_TEST_H_
  16
  17 namespace cc {
  18 class CopyOutputResult;
  19 class DirectRenderer;
  20 class FakeOutputSurfaceClient;
  21 class OutputSurface;
  22 class ResourceProvider;
  23 class SoftwareRenderer;
  24 class SharedBitmapManager;
  25
  26 class PixelTest : public testing::Test, RendererClient {
  27  protected:
  28   PixelTest();
  29   virtual ~PixelTest();
  30
  31   bool RunPixelTest(RenderPassList* pass_list,
  32                     const base::FilePath& ref_file,
  33                     const PixelComparator& comparator);
  34
  35   bool RunPixelTestWithReadbackTarget(
  36       RenderPassList* pass_list,
  37       RenderPass* target,
  38       const base::FilePath& ref_file,
  39       const PixelComparator& comparator);
  40
  41   LayerTreeSettings settings_;
  42   gfx::Size device_viewport_size_;
  43   bool disable_picture_quad_image_filtering_;
  44   class PixelTestRendererClient;
  45   scoped_ptr<FakeOutputSurfaceClient> output_surface_client_;
  46   scoped_ptr<OutputSurface> output_surface_;
  47   scoped_ptr<SharedBitmapManager> shared_bitmap_manager_;
  48   scoped_ptr<ResourceProvider> resource_provider_;
  49   scoped_ptr<TextureMailboxDeleter> texture_mailbox_deleter_;
  50   scoped_ptr<DirectRenderer> renderer_;
  51   scoped_ptr<SkBitmap> result_bitmap_;
  52   gfx::Vector2d external_device_viewport_offset_;
  53   gfx::Rect external_device_clip_rect_;
  54
  55   void SetUpGLRenderer(bool use_skia_gpu_backend);
  56   void SetUpSoftwareRenderer();
  57
  58   void ForceExpandedViewport(const gfx::Size& surface_expansion);
  59   void ForceViewportOffset(const gfx::Vector2d& viewport_offset);
  60   void ForceDeviceClip(const gfx::Rect& clip);
  61   void EnableExternalStencilTest();
  62
  63   // RendererClient implementation.
  64   virtual void SetFullRootLayerDamage() OVERRIDE {}
  65   virtual void RunOnDemandRasterTask(Task* on_demand_raster_task) OVERRIDE;
  66
  67  private:
  68   void ReadbackResult(base::Closure quit_run_loop,
  69                       scoped_ptr<CopyOutputResult> result);
  70
  71   bool PixelsMatchReference(const base::FilePath& ref_file,
  72                             const PixelComparator& comparator);
  73
  74   scoped_ptr<gfx::DisableNullDrawGLBindings> enable_pixel_output_;
  75 };
  76
  77 template<typename RendererType>
  78 class RendererPixelTest : public PixelTest {
  79  public:
  80   RendererType* renderer() {
  81     return static_cast<RendererType*>(renderer_.get());
  82   }
  83
  84   bool UseSkiaGPUBackend() const;
  85   bool ExpandedViewport() const;
  86
  87  protected:
  88   virtual void SetUp() OVERRIDE;
  89 };
  90
  91 // Wrappers to differentiate renderers where the the output surface and viewport
  92 // have an externally determined size and offset.
  93 class GLRendererWithExpandedViewport : public GLRenderer {
  94  public:
  95   GLRendererWithExpandedViewport(RendererClient* client,
  96                                  const LayerTreeSettings* settings,
  97                                  OutputSurface* output_surface,
  98                                  ResourceProvider* resource_provider,
  99                                  TextureMailboxDeleter* texture_mailbox_deleter,
 100                                  int highp_threshold_min)
 101       : GLRenderer(client,
 102                    settings,
 103                    output_surface,
 104                    resource_provider,
 105                    texture_mailbox_deleter,
 106                    highp_threshold_min) {}
 107 };
 108
 109 class SoftwareRendererWithExpandedViewport : public SoftwareRenderer {
 110  public:
 111   SoftwareRendererWithExpandedViewport(RendererClient* client,
 112                                        const LayerTreeSettings* settings,
 113                                        OutputSurface* output_surface,
 114                                        ResourceProvider* resource_provider)
 115       : SoftwareRenderer(client, settings, output_surface, resource_provider) {}
 116 };
 117
 118 template<>
 119 inline void RendererPixelTest<GLRenderer>::SetUp() {
 120   SetUpGLRenderer(false);
 121 }
 122
 123 template<>
 124 inline bool RendererPixelTest<GLRenderer>::UseSkiaGPUBackend() const {
 125   return false;
 126 }
 127
 128 template<>
 129 inline bool RendererPixelTest<GLRenderer>::ExpandedViewport() const {
 130   return false;
 131 }
 132
 133 template<>
 134 inline void RendererPixelTest<GLRendererWithExpandedViewport>::SetUp() {
 135   SetUpGLRenderer(false);
 136   ForceExpandedViewport(gfx::Size(50, 50));
 137   ForceViewportOffset(gfx::Vector2d(10, 20));
 138 }
 139
 140 template <>
 141 inline bool
 142 RendererPixelTest<GLRendererWithExpandedViewport>::UseSkiaGPUBackend() const {
 143   return false;
 144 }
 145
 146 template <>
 147 inline bool
 148 RendererPixelTest<GLRendererWithExpandedViewport>::ExpandedViewport() const {
 149   return true;
 150 }
 151
 152 template<>
 153 inline void RendererPixelTest<SoftwareRenderer>::SetUp() {
 154   SetUpSoftwareRenderer();
 155 }
 156
 157 template<>
 158 inline bool RendererPixelTest<SoftwareRenderer>::UseSkiaGPUBackend() const {
 159   return false;
 160 }
 161
 162 template <>
 163 inline bool RendererPixelTest<SoftwareRenderer>::ExpandedViewport() const {
 164   return false;
 165 }
 166
 167 template<>
 168 inline void RendererPixelTest<SoftwareRendererWithExpandedViewport>::SetUp() {
 169   SetUpSoftwareRenderer();
 170   ForceExpandedViewport(gfx::Size(50, 50));
 171   ForceViewportOffset(gfx::Vector2d(10, 20));
 172 }
 173
 174 template <>
 175 inline bool RendererPixelTest<
 176     SoftwareRendererWithExpandedViewport>::UseSkiaGPUBackend() const {
 177   return false;
 178 }
 179
 180 template <>
 181 inline bool RendererPixelTest<
 182     SoftwareRendererWithExpandedViewport>::ExpandedViewport() const {
 183   return true;
 184 }
 185
 186 typedef RendererPixelTest<GLRenderer> GLRendererPixelTest;
 187 typedef RendererPixelTest<SoftwareRenderer> SoftwareRendererPixelTest;
 188
 189 }  // namespace cc
 190
 191 #endif  // CC_TEST_PIXEL_TEST_H_