| Flutter Impeller |

capabilities.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 "impeller/renderer/capabilities.h"
6 #include "impeller/core/formats.h"
7
8 namespace impeller {
9
10 Capabilities::Capabilities() = default;
11
12 Capabilities::~Capabilities() = default;
13
14 class StandardCapabilities final : public Capabilities {
15 public:
16 // |Capabilities|
17 ~StandardCapabilities() override = default;
18
19 // |Capabilities|
20 bool SupportsOffscreenMSAA() const override {
21 return supports_offscreen_msaa_;
22 }
23
24 // |Capabilities|
25 bool SupportsImplicitResolvingMSAA() const override { return false; }
26
27 // |Capabilities|
28 bool SupportsSSBO() const override { return supports_ssbo_; }
29
30 // |Capabilities|
31 bool SupportsTextureToTextureBlits() const override {
32 return supports_texture_to_texture_blits_;
33 }
34
35 // |Capabilities|
36 bool SupportsFramebufferFetch() const override {
37 return supports_framebuffer_fetch_;
38 }
39
40 // |Capabilities|
41 bool SupportsCompute() const override { return supports_compute_; }
42
43 // |Capabilities|
44 bool SupportsComputeSubgroups() const override {
45 return supports_compute_subgroups_;
46 }
47
48 // |Capabilities|
49 bool SupportsReadFromResolve() const override {
50 return supports_read_from_resolve_;
51 }
52
53 // |Capabilities|
54 bool SupportsDecalSamplerAddressMode() const override {
55 return supports_decal_sampler_address_mode_;
56 }
57
58 // |Capabilities|
59 bool SupportsTriangleFan() const override { return supports_triangle_fan_; }
60
61 // |Capabilities|
62 PixelFormat GetDefaultColorFormat() const override {
63 return default_color_format_;
64 }
65
66 // |Capabilities|
67 PixelFormat GetDefaultStencilFormat() const override {
68 return default_stencil_format_;
69 }
70
71 // |Capabilities|
72 PixelFormat GetDefaultDepthStencilFormat() const override {
73 return default_depth_stencil_format_;
74 }
75
76 // |Capabilities|
77 bool SupportsDeviceTransientTextures() const override {
78 return supports_device_transient_textures_;
79 }
80
81 // |Capabilities|
82 PixelFormat GetDefaultGlyphAtlasFormat() const override {
83 return default_glyph_atlas_format_;
84 }
85
86 // |Capabilities|
87 ISize GetMaximumRenderPassAttachmentSize() const override {
88 return default_maximum_render_pass_attachment_size_;
89 }
90
91 // |Capabilities|
92 bool SupportsPrimitiveRestart() const override { return true; }
93
94 private:
95 StandardCapabilities(bool supports_offscreen_msaa,
96 bool supports_ssbo,
97 bool supports_texture_to_texture_blits,
98 bool supports_framebuffer_fetch,
99 bool supports_compute,
100 bool supports_compute_subgroups,
101 bool supports_read_from_resolve,
102 bool supports_decal_sampler_address_mode,
103 bool supports_device_transient_textures,
104 bool supports_triangle_fan,
105 PixelFormat default_color_format,
106 PixelFormat default_stencil_format,
107 PixelFormat default_depth_stencil_format,
108 PixelFormat default_glyph_atlas_format,
109 ISize default_maximum_render_pass_attachment_size)
110 : supports_offscreen_msaa_(supports_offscreen_msaa),
111 supports_ssbo_(supports_ssbo),
112 supports_texture_to_texture_blits_(supports_texture_to_texture_blits),
113 supports_framebuffer_fetch_(supports_framebuffer_fetch),
114 supports_compute_(supports_compute),
115 supports_compute_subgroups_(supports_compute_subgroups),
116 supports_read_from_resolve_(supports_read_from_resolve),
117 supports_decal_sampler_address_mode_(
118 supports_decal_sampler_address_mode),
119 supports_device_transient_textures_(supports_device_transient_textures),
120 supports_triangle_fan_(supports_triangle_fan),
121 default_color_format_(default_color_format),
122 default_stencil_format_(default_stencil_format),
123 default_depth_stencil_format_(default_depth_stencil_format),
124 default_glyph_atlas_format_(default_glyph_atlas_format),
125 default_maximum_render_pass_attachment_size_(
126 default_maximum_render_pass_attachment_size) {}
127
128 friend class CapabilitiesBuilder;
129
130 bool supports_offscreen_msaa_ = false;
131 bool supports_ssbo_ = false;
132 bool supports_texture_to_texture_blits_ = false;
133 bool supports_framebuffer_fetch_ = false;
134 bool supports_compute_ = false;
135 bool supports_compute_subgroups_ = false;
136 bool supports_read_from_resolve_ = false;
137 bool supports_decal_sampler_address_mode_ = false;
138 bool supports_device_transient_textures_ = false;
139 bool supports_triangle_fan_ = false;
140 PixelFormat default_color_format_ = PixelFormat::kUnknown;
141 PixelFormat default_stencil_format_ = PixelFormat::kUnknown;
142 PixelFormat default_depth_stencil_format_ = PixelFormat::kUnknown;
143 PixelFormat default_glyph_atlas_format_ = PixelFormat::kUnknown;
144 ISize default_maximum_render_pass_attachment_size_ = ISize(1, 1);
145
146 StandardCapabilities(const StandardCapabilities&) = delete;
147
148 StandardCapabilities& operator=(const StandardCapabilities&) = delete;
149 };
150
151 CapabilitiesBuilder::CapabilitiesBuilder() = default;
152
153 CapabilitiesBuilder::~CapabilitiesBuilder() = default;
154
155 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsOffscreenMSAA(bool value) {
156 supports_offscreen_msaa_ = value;
157 return *this;
158 }
159
160 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsSSBO(bool value) {
161 supports_ssbo_ = value;
162 return *this;
163 }
164
165 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsTextureToTextureBlits(
166 bool value) {
167 supports_texture_to_texture_blits_ = value;
168 return *this;
169 }
170
171 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsFramebufferFetch(
172 bool value) {
173 supports_framebuffer_fetch_ = value;
174 return *this;
175 }
176
177 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsCompute(bool value) {
178 supports_compute_ = value;
179 return *this;
180 }
181
182 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsComputeSubgroups(
183 bool value) {
184 supports_compute_subgroups_ = value;
185 return *this;
186 }
187
188 CapabilitiesBuilder& CapabilitiesBuilder::SetDefaultColorFormat(
189 PixelFormat value) {
190 default_color_format_ = value;
191 return *this;
192 }
193
194 CapabilitiesBuilder& CapabilitiesBuilder::SetDefaultStencilFormat(
195 PixelFormat value) {
196 default_stencil_format_ = value;
197 return *this;
198 }
199
200 CapabilitiesBuilder& CapabilitiesBuilder::SetDefaultDepthStencilFormat(
201 PixelFormat value) {
202 default_depth_stencil_format_ = value;
203 return *this;
204 }
205
206 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsReadFromResolve(
207 bool read_from_resolve) {
208 supports_read_from_resolve_ = read_from_resolve;
209 return *this;
210 }
211
212 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsDecalSamplerAddressMode(
213 bool value) {
214 supports_decal_sampler_address_mode_ = value;
215 return *this;
216 }
217
218 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsDeviceTransientTextures(
219 bool value) {
220 supports_device_transient_textures_ = value;
221 return *this;
222 }
223
224 CapabilitiesBuilder& CapabilitiesBuilder::SetDefaultGlyphAtlasFormat(
225 PixelFormat value) {
226 default_glyph_atlas_format_ = value;
227 return *this;
228 }
229
230 CapabilitiesBuilder& CapabilitiesBuilder::SetSupportsTriangleFan(bool value) {
231 supports_triangle_fan_ = value;
232 return *this;
233 }
234
235 CapabilitiesBuilder& CapabilitiesBuilder::SetMaximumRenderPassAttachmentSize(
236 ISize size) {
237 default_maximum_render_pass_attachment_size_ = size;
238 return *this;
239 }
240
241 std::unique_ptr<Capabilities> CapabilitiesBuilder::Build() {
242 return std::unique_ptr<StandardCapabilities>(new StandardCapabilities( //
243 supports_offscreen_msaa_, //
244 supports_ssbo_, //
245 supports_texture_to_texture_blits_, //
246 supports_framebuffer_fetch_, //
247 supports_compute_, //
248 supports_compute_subgroups_, //
249 supports_read_from_resolve_, //
250 supports_decal_sampler_address_mode_, //
251 supports_device_transient_textures_, //
252 supports_triangle_fan_, //
253 default_color_format_.value_or(PixelFormat::kUnknown), //
254 default_stencil_format_.value_or(PixelFormat::kUnknown), //
255 default_depth_stencil_format_.value_or(PixelFormat::kUnknown), //
256 default_glyph_atlas_format_.value_or(PixelFormat::kUnknown), //
257 default_maximum_render_pass_attachment_size_.value_or(ISize{1, 1}) //
258 ));
259 }
260
261 } // namespace impeller
impeller::CapabilitiesBuilder::CapabilitiesBuilder
CapabilitiesBuilder()
impeller::StandardCapabilities::SupportsComputeSubgroups
bool SupportsComputeSubgroups() const override
Whether the context backend supports configuring ComputePass command subgroups.
Definition: capabilities.cc:44
impeller::StandardCapabilities::SupportsTextureToTextureBlits
bool SupportsTextureToTextureBlits() const override
Whether the context backend supports blitting from one texture region to another texture region (via ...
Definition: capabilities.cc:31
impeller::StandardCapabilities::SupportsFramebufferFetch
bool SupportsFramebufferFetch() const override
Whether the context backend is able to support pipelines with shaders that read from the framebuffer ...
Definition: capabilities.cc:36
impeller::ISize
ISize64 ISize
Definition: size.h:174
impeller::StandardCapabilities::SupportsCompute
bool SupportsCompute() const override
Whether the context backend supports ComputePass.
Definition: capabilities.cc:41
impeller::CapabilitiesBuilder::Build
std::unique_ptr< Capabilities > Build()
Definition: capabilities.cc:241
impeller::StandardCapabilities::~StandardCapabilities
~StandardCapabilities() override=default
impeller::StandardCapabilities::GetDefaultStencilFormat
PixelFormat GetDefaultStencilFormat() const override
Returns a supported PixelFormat for textures that store stencil information. May include a depth chan...
Definition: capabilities.cc:67
value
int32_t value
Definition: dl_golden_unittests.cc:444
impeller::CapabilitiesBuilder
Definition: capabilities.h:127
formats.h
impeller::CapabilitiesBuilder::SetSupportsTriangleFan
CapabilitiesBuilder & SetSupportsTriangleFan(bool value)
Definition: capabilities.cc:230
impeller::StandardCapabilities::SupportsReadFromResolve
bool SupportsReadFromResolve() const override
Whether the context backend supports binding the current RenderPass attachments. This is supported if...
Definition: capabilities.cc:49
impeller::StandardCapabilities::SupportsSSBO
bool SupportsSSBO() const override
Whether the context backend supports binding Shader Storage Buffer Objects (SSBOs) to pipelines.
Definition: capabilities.cc:28
impeller::PixelFormat
PixelFormat
The Pixel formats supported by Impeller. The naming convention denotes the usage of the component,...
Definition: formats.h:99
impeller::Capabilities
Definition: capabilities.h:14
impeller::TSize
Definition: size.h:25
impeller::CapabilitiesBuilder::SetSupportsSSBO
CapabilitiesBuilder & SetSupportsSSBO(bool value)
Definition: capabilities.cc:160
impeller::StandardCapabilities::SupportsImplicitResolvingMSAA
bool SupportsImplicitResolvingMSAA() const override
Whether the context backend supports multisampled rendering to the on-screen surface without requirin...
Definition: capabilities.cc:25
impeller::CapabilitiesBuilder::SetSupportsCompute
CapabilitiesBuilder & SetSupportsCompute(bool value)
Definition: capabilities.cc:177
impeller::StandardCapabilities::SupportsPrimitiveRestart
bool SupportsPrimitiveRestart() const override
Whether primitive restart is supported.
Definition: capabilities.cc:92
impeller::CapabilitiesBuilder::SetDefaultDepthStencilFormat
CapabilitiesBuilder & SetDefaultDepthStencilFormat(PixelFormat value)
Definition: capabilities.cc:200
impeller::CapabilitiesBuilder::SetMaximumRenderPassAttachmentSize
CapabilitiesBuilder & SetMaximumRenderPassAttachmentSize(ISize size)
Definition: capabilities.cc:235
impeller::CapabilitiesBuilder::SetDefaultGlyphAtlasFormat
CapabilitiesBuilder & SetDefaultGlyphAtlasFormat(PixelFormat value)
Definition: capabilities.cc:224
impeller::StandardCapabilities
Definition: capabilities.cc:14
impeller::CapabilitiesBuilder::SetSupportsFramebufferFetch
CapabilitiesBuilder & SetSupportsFramebufferFetch(bool value)
Definition: capabilities.cc:171
impeller::StandardCapabilities::GetDefaultColorFormat
PixelFormat GetDefaultColorFormat() const override
Returns a supported PixelFormat for textures that store 4-channel colors (red/green/blue/alpha).
Definition: capabilities.cc:62
impeller::CapabilitiesBuilder::~CapabilitiesBuilder
~CapabilitiesBuilder()
impeller::StandardCapabilities::SupportsTriangleFan
bool SupportsTriangleFan() const override
Whether the primitive type TriangleFan is supported by the backend.
Definition: capabilities.cc:59
impeller::CapabilitiesBuilder::SetSupportsComputeSubgroups
CapabilitiesBuilder & SetSupportsComputeSubgroups(bool value)
Definition: capabilities.cc:182
impeller::StandardCapabilities::GetMaximumRenderPassAttachmentSize
ISize GetMaximumRenderPassAttachmentSize() const override
Return the maximum size of a render pass attachment.
Definition: capabilities.cc:87
capabilities.h
impeller::Capabilities::Capabilities
Capabilities()
impeller::StandardCapabilities::SupportsDecalSamplerAddressMode
bool SupportsDecalSamplerAddressMode() const override
Whether the context backend supports SamplerAddressMode::Decal.
Definition: capabilities.cc:54
impeller::CapabilitiesBuilder::SetSupportsTextureToTextureBlits
CapabilitiesBuilder & SetSupportsTextureToTextureBlits(bool value)
Definition: capabilities.cc:165
impeller::StandardCapabilities::SupportsOffscreenMSAA
bool SupportsOffscreenMSAA() const override
Whether the context backend supports attaching offscreen MSAA color/stencil textures.
Definition: capabilities.cc:20
impeller::PixelFormat::kUnknown
@ kUnknown
impeller::StandardCapabilities::SupportsDeviceTransientTextures
bool SupportsDeviceTransientTextures() const override
Whether the context backend supports allocating StorageMode::kDeviceTransient (aka "memoryless") text...
Definition: capabilities.cc:77
impeller::StandardCapabilities::GetDefaultDepthStencilFormat
PixelFormat GetDefaultDepthStencilFormat() const override
Returns a supported PixelFormat for textures that store both a stencil and depth component....
Definition: capabilities.cc:72
impeller::CapabilitiesBuilder::SetDefaultColorFormat
CapabilitiesBuilder & SetDefaultColorFormat(PixelFormat value)
Definition: capabilities.cc:188
impeller::CapabilitiesBuilder::SetDefaultStencilFormat
CapabilitiesBuilder & SetDefaultStencilFormat(PixelFormat value)
Definition: capabilities.cc:194
impeller::StandardCapabilities::GetDefaultGlyphAtlasFormat
PixelFormat GetDefaultGlyphAtlasFormat() const override
Returns the default pixel format for the alpha bitmap glyph atlas.
Definition: capabilities.cc:82
impeller::Capabilities::~Capabilities
virtual ~Capabilities()
impeller::CapabilitiesBuilder::SetSupportsDecalSamplerAddressMode
CapabilitiesBuilder & SetSupportsDecalSamplerAddressMode(bool value)
Definition: capabilities.cc:212
impeller::CapabilitiesBuilder::SetSupportsDeviceTransientTextures
CapabilitiesBuilder & SetSupportsDeviceTransientTextures(bool value)
Definition: capabilities.cc:218
impeller
Definition: allocation.cc:12
impeller::CapabilitiesBuilder::SetSupportsReadFromResolve
CapabilitiesBuilder & SetSupportsReadFromResolve(bool value)
Definition: capabilities.cc:206
impeller::CapabilitiesBuilder::SetSupportsOffscreenMSAA
CapabilitiesBuilder & SetSupportsOffscreenMSAA(bool value)
Definition: capabilities.cc:155