| Flutter Impeller |

entity_pass_target_unittests.cc
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1 // Copyright 2013 The Flutter 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 <memory>
6
7 #include "flutter/testing/testing.h"
8 #include "gtest/gtest.h"
9 #include "impeller/core/formats.h"
10 #include "impeller/entity/entity_pass_target.h"
11 #include "impeller/entity/entity_playground.h"
12
13 namespace impeller {
14 namespace testing {
15
16 using EntityPassTargetTest = EntityPlayground;
17 INSTANTIATE_PLAYGROUND_SUITE(EntityPassTargetTest);
18
19 TEST_P(EntityPassTargetTest, SwapWithMSAATexture) {
20 if (GetContentContext()
21 ->GetDeviceCapabilities()
22 .SupportsImplicitResolvingMSAA()) {
23 GTEST_SKIP() << "Implicit MSAA is used on this device.";
24 }
25 auto content_context = GetContentContext();
26 auto buffer = content_context->GetContext()->CreateCommandBuffer();
27 auto render_target = RenderTarget::CreateOffscreenMSAA(
28 *content_context->GetContext(),
29 *GetContentContext()->GetRenderTargetCache(), {100, 100});
30
31 auto entity_pass_target = EntityPassTarget(render_target, false, false);
32
33 auto color0 = entity_pass_target.GetRenderTarget()
34 .GetColorAttachments()
35 .find(0u)
36 ->second;
37 auto msaa_tex = color0.texture;
38 auto resolve_tex = color0.resolve_texture;
39
40 entity_pass_target.Flip(
41 *content_context->GetContext()->GetResourceAllocator());
42
43 color0 = entity_pass_target.GetRenderTarget()
44 .GetColorAttachments()
45 .find(0u)
46 ->second;
47
48 ASSERT_EQ(msaa_tex, color0.texture);
49 ASSERT_NE(resolve_tex, color0.resolve_texture);
50 }
51
52 TEST_P(EntityPassTargetTest, SwapWithMSAAImplicitResolve) {
53 auto content_context = GetContentContext();
54 auto buffer = content_context->GetContext()->CreateCommandBuffer();
55 auto context = content_context->GetContext();
56 auto& allocator = *context->GetResourceAllocator();
57
58 // Emulate implicit MSAA resolve by making color resolve and msaa texture the
59 // same.
60 RenderTarget render_target;
61 {
62 PixelFormat pixel_format =
63 context->GetCapabilities()->GetDefaultColorFormat();
64
65 // Create MSAA color texture.
66
67 TextureDescriptor color0_tex_desc;
68 color0_tex_desc.storage_mode = StorageMode::kDevicePrivate;
69 color0_tex_desc.type = TextureType::kTexture2DMultisample;
70 color0_tex_desc.sample_count = SampleCount::kCount4;
71 color0_tex_desc.format = pixel_format;
72 color0_tex_desc.size = ISize{100, 100};
73 color0_tex_desc.usage = static_cast<uint64_t>(TextureUsage::kRenderTarget);
74
75 auto color0_msaa_tex = allocator.CreateTexture(color0_tex_desc);
76
77 // Color attachment.
78
79 ColorAttachment color0;
80 color0.load_action = LoadAction::kDontCare;
81 color0.store_action = StoreAction::kStoreAndMultisampleResolve;
82 color0.texture = color0_msaa_tex;
83 color0.resolve_texture = color0_msaa_tex;
84
85 render_target.SetColorAttachment(color0, 0u);
86 render_target.SetStencilAttachment(std::nullopt);
87 }
88
89 auto entity_pass_target = EntityPassTarget(render_target, false, true);
90
91 auto color0 = entity_pass_target.GetRenderTarget()
92 .GetColorAttachments()
93 .find(0u)
94 ->second;
95 auto msaa_tex = color0.texture;
96 auto resolve_tex = color0.resolve_texture;
97
98 ASSERT_EQ(msaa_tex, resolve_tex);
99
100 entity_pass_target.Flip(
101 *content_context->GetContext()->GetResourceAllocator());
102
103 color0 = entity_pass_target.GetRenderTarget()
104 .GetColorAttachments()
105 .find(0u)
106 ->second;
107
108 ASSERT_NE(msaa_tex, color0.texture);
109 ASSERT_NE(resolve_tex, color0.resolve_texture);
110 ASSERT_EQ(color0.texture, color0.resolve_texture);
111 }
112
113 } // namespace testing
114 } // namespace impeller
impeller::StoreAction::kStoreAndMultisampleResolve
@ kStoreAndMultisampleResolve
impeller::Attachment::store_action
StoreAction store_action
Definition: formats.h:637
impeller::ColorAttachment
Definition: formats.h:642
impeller::TextureDescriptor::format
PixelFormat format
Definition: texture_descriptor.h:40
impeller::RenderTarget::SetColorAttachment
RenderTarget & SetColorAttachment(const ColorAttachment &attachment, size_t index)
Definition: render_target.cc:180
formats.h
impeller::TextureUsage::kRenderTarget
@ kRenderTarget
impeller::EntityPassTarget
Definition: entity_pass_target.h:15
impeller::TextureDescriptor::sample_count
SampleCount sample_count
Definition: texture_descriptor.h:45
impeller::TextureDescriptor::usage
TextureUsageMask usage
Definition: texture_descriptor.h:43
impeller::PixelFormat
PixelFormat
The Pixel formats supported by Impeller. The naming convention denotes the usage of the component,...
Definition: formats.h:94
impeller::TextureDescriptor::type
TextureType type
Definition: texture_descriptor.h:39
impeller::testing::INSTANTIATE_PLAYGROUND_SUITE
INSTANTIATE_PLAYGROUND_SUITE(AiksTest)
impeller::TextureType::kTexture2DMultisample
@ kTexture2DMultisample
impeller::TSize< int64_t >
impeller::Attachment::texture
std::shared_ptr< Texture > texture
Definition: formats.h:634
impeller::StorageMode::kDevicePrivate
@ kDevicePrivate
impeller::RenderTarget
Definition: render_target.h:49
entity_pass_target.h
impeller::TextureDescriptor::size
ISize size
Definition: texture_descriptor.h:41
impeller::EntityPlayground
Definition: entity_playground.h:18
impeller::Attachment::resolve_texture
std::shared_ptr< Texture > resolve_texture
Definition: formats.h:635
impeller::RenderTarget::SetStencilAttachment
RenderTarget & SetStencilAttachment(std::optional< StencilAttachment > attachment)
Definition: render_target.cc:199
impeller::LoadAction::kDontCare
@ kDontCare
impeller::Attachment::load_action
LoadAction load_action
Definition: formats.h:636
impeller::SampleCount::kCount4
@ kCount4
impeller::TextureDescriptor::storage_mode
StorageMode storage_mode
Definition: texture_descriptor.h:38
impeller::TextureDescriptor
A lightweight object that describes the attributes of a texture that can then used an allocator to cr...
Definition: texture_descriptor.h:37
impeller::testing::TEST_P
TEST_P(AiksTest, CanRenderLinearGradientClamp)
Definition: aiks_gradient_unittests.cc:48
impeller
Definition: aiks_context.cc:10
impeller::RenderTarget::CreateOffscreenMSAA
static RenderTarget CreateOffscreenMSAA(const Context &context, RenderTargetAllocator &allocator, ISize size, const std::string &label="Offscreen MSAA", AttachmentConfigMSAA color_attachment_config=kDefaultColorAttachmentConfigMSAA, std::optional< AttachmentConfig > stencil_attachment_config=kDefaultStencilAttachmentConfig)
Definition: render_target.cc:265
entity_playground.h