| Flutter Impeller |

playground.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 <array>
6 #include <memory>
7 #include <optional>
8 #include <sstream>
9
10 #include "fml/time/time_point.h"
11 #include "impeller/playground/image/backends/skia/compressed_image_skia.h"
12 #include "impeller/playground/image/decompressed_image.h"
13 #include "impeller/renderer/command_buffer.h"
14 #include "impeller/runtime_stage/runtime_stage.h"
15
16 #define GLFW_INCLUDE_NONE
17 #include "third_party/glfw/include/GLFW/glfw3.h"
18
19 #include "flutter/fml/paths.h"
20 #include "impeller/base/validation.h"
21 #include "impeller/core/allocator.h"
22 #include "impeller/core/formats.h"
23 #include "impeller/playground/backend/vulkan/swiftshader_utilities.h"
24 #include "impeller/playground/image/compressed_image.h"
25 #include "impeller/playground/imgui/imgui_impl_impeller.h"
26 #include "impeller/playground/playground.h"
27 #include "impeller/playground/playground_impl.h"
28 #include "impeller/renderer/context.h"
29 #include "impeller/renderer/render_pass.h"
30 #include "impeller/renderer/renderer.h"
31 #include "third_party/imgui/backends/imgui_impl_glfw.h"
32 #include "third_party/imgui/imgui.h"
33
34 #if FML_OS_MACOSX
35 #include "fml/platform/darwin/scoped_nsautorelease_pool.h"
36 #endif // FML_OS_MACOSX
37
38 #if IMPELLER_ENABLE_VULKAN
39 #include "impeller/playground/backend/vulkan/playground_impl_vk.h"
40 #endif // IMPELLER_ENABLE_VULKAN
41
42 namespace impeller {
43
44 std::string PlaygroundBackendToString(PlaygroundBackend backend) {
45 switch (backend) {
46 case PlaygroundBackend::kMetal:
47 return "Metal";
48 case PlaygroundBackend::kOpenGLES:
49 return "OpenGLES";
50 case PlaygroundBackend::kVulkan:
51 return "Vulkan";
52 }
53 FML_UNREACHABLE();
54 }
55
56 static void InitializeGLFWOnce() {
57 // This guard is a hack to work around a problem where glfwCreateWindow
58 // hangs when opening a second window after GLFW has been reinitialized (for
59 // example, when flipping through multiple playground tests).
60 //
61 // Explanation:
62 // * glfwCreateWindow calls [NSApp run], which begins running the event
63 // loop on the current thread.
64 // * GLFW then immediately stops the loop when
65 // applicationDidFinishLaunching is fired.
66 // * applicationDidFinishLaunching is only ever fired once during the
67 // application's lifetime, so subsequent calls to [NSApp run] will always
68 // hang with this setup.
69 // * glfwInit resets the flag that guards against [NSApp run] being
70 // called a second time, which causes the subsequent `glfwCreateWindow`
71 // to hang indefinitely in the event loop, because
72 // applicationDidFinishLaunching is never fired.
73 static std::once_flag sOnceInitializer;
74 std::call_once(sOnceInitializer, []() {
75 ::glfwSetErrorCallback([](int code, const char* description) {
76 FML_LOG(ERROR) << "GLFW Error '" << description << "' (" << code << ").";
77 });
78 FML_CHECK(::glfwInit() == GLFW_TRUE);
79 });
80 }
81
82 Playground::Playground(PlaygroundSwitches switches) : switches_(switches) {
83 InitializeGLFWOnce();
84 SetupSwiftshaderOnce(switches_.use_swiftshader);
85 }
86
87 Playground::~Playground() = default;
88
89 std::shared_ptr<Context> Playground::GetContext() const {
90 return context_;
91 }
92
93 std::shared_ptr<Context> Playground::MakeContext() const {
94 // Playgrounds are already making a context for each test, so we can just
95 // return the `context_`.
96 return context_;
97 }
98
99 bool Playground::SupportsBackend(PlaygroundBackend backend) {
100 switch (backend) {
101 case PlaygroundBackend::kMetal:
102 #if IMPELLER_ENABLE_METAL
103 return true;
104 #else // IMPELLER_ENABLE_METAL
105 return false;
106 #endif // IMPELLER_ENABLE_METAL
107 case PlaygroundBackend::kOpenGLES:
108 #if IMPELLER_ENABLE_OPENGLES
109 return true;
110 #else // IMPELLER_ENABLE_OPENGLES
111 return false;
112 #endif // IMPELLER_ENABLE_OPENGLES
113 case PlaygroundBackend::kVulkan:
114 #if IMPELLER_ENABLE_VULKAN
115 return PlaygroundImplVK::IsVulkanDriverPresent();
116 #else // IMPELLER_ENABLE_VULKAN
117 return false;
118 #endif // IMPELLER_ENABLE_VULKAN
119 }
120 FML_UNREACHABLE();
121 }
122
123 void Playground::SetupContext(PlaygroundBackend backend) {
124 FML_CHECK(SupportsBackend(backend));
125
126 impl_ = PlaygroundImpl::Create(backend, switches_);
127 if (!impl_) {
128 FML_LOG(WARNING) << "PlaygroundImpl::Create failed.";
129 return;
130 }
131
132 context_ = impl_->GetContext();
133 }
134
135 void Playground::SetupWindow() {
136 if (!context_) {
137 FML_LOG(WARNING) << "Asked to set up a window with no context (call "
138 "SetupContext first).";
139 return;
140 }
141 auto renderer = std::make_unique<Renderer>(context_);
142 if (!renderer->IsValid()) {
143 return;
144 }
145 renderer_ = std::move(renderer);
146
147 start_time_ = fml::TimePoint::Now().ToEpochDelta();
148 }
149
150 void Playground::TeardownWindow() {
151 if (context_) {
152 context_->Shutdown();
153 }
154 context_.reset();
155 renderer_.reset();
156 impl_.reset();
157 }
158
159 static std::atomic_bool gShouldOpenNewPlaygrounds = true;
160
161 bool Playground::ShouldOpenNewPlaygrounds() {
162 return gShouldOpenNewPlaygrounds;
163 }
164
165 static void PlaygroundKeyCallback(GLFWwindow* window,
166 int key,
167 int scancode,
168 int action,
169 int mods) {
170 if ((key == GLFW_KEY_ESCAPE) && action == GLFW_RELEASE) {
171 if (mods & (GLFW_MOD_CONTROL | GLFW_MOD_SUPER | GLFW_MOD_SHIFT)) {
172 gShouldOpenNewPlaygrounds = false;
173 }
174 ::glfwSetWindowShouldClose(window, GLFW_TRUE);
175 }
176 }
177
178 Point Playground::GetCursorPosition() const {
179 return cursor_position_;
180 }
181
182 ISize Playground::GetWindowSize() const {
183 return window_size_;
184 }
185
186 Point Playground::GetContentScale() const {
187 return impl_->GetContentScale();
188 }
189
190 Scalar Playground::GetSecondsElapsed() const {
191 return (fml::TimePoint::Now().ToEpochDelta() - start_time_).ToSecondsF();
192 }
193
194 void Playground::SetCursorPosition(Point pos) {
195 cursor_position_ = pos;
196 }
197
198 bool Playground::OpenPlaygroundHere(
199 const Renderer::RenderCallback& render_callback) {
200 if (!switches_.enable_playground) {
201 return true;
202 }
203
204 if (!render_callback) {
205 return true;
206 }
207
208 if (!renderer_ || !renderer_->IsValid()) {
209 return false;
210 }
211
212 IMGUI_CHECKVERSION();
213 ImGui::CreateContext();
214 fml::ScopedCleanupClosure destroy_imgui_context(
215 []() { ImGui::DestroyContext(); });
216 ImGui::StyleColorsDark();
217
218 auto& io = ImGui::GetIO();
219 io.IniFilename = nullptr;
220 io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
221 io.ConfigWindowsResizeFromEdges = true;
222
223 auto window = reinterpret_cast<GLFWwindow*>(impl_->GetWindowHandle());
224 if (!window) {
225 return false;
226 }
227 ::glfwSetWindowTitle(window, GetWindowTitle().c_str());
228 ::glfwSetWindowUserPointer(window, this);
229 ::glfwSetWindowSizeCallback(
230 window, [](GLFWwindow* window, int width, int height) -> void {
231 auto playground =
232 reinterpret_cast<Playground*>(::glfwGetWindowUserPointer(window));
233 if (!playground) {
234 return;
235 }
236 playground->SetWindowSize(ISize{width, height}.Max({}));
237 });
238 ::glfwSetKeyCallback(window, &PlaygroundKeyCallback);
239 ::glfwSetCursorPosCallback(window, [](GLFWwindow* window, double x,
240 double y) {
241 reinterpret_cast<Playground*>(::glfwGetWindowUserPointer(window))
242 ->SetCursorPosition({static_cast<Scalar>(x), static_cast<Scalar>(y)});
243 });
244
245 ImGui_ImplGlfw_InitForOther(window, true);
246 fml::ScopedCleanupClosure shutdown_imgui([]() { ImGui_ImplGlfw_Shutdown(); });
247
248 ImGui_ImplImpeller_Init(renderer_->GetContext());
249 fml::ScopedCleanupClosure shutdown_imgui_impeller(
250 []() { ImGui_ImplImpeller_Shutdown(); });
251
252 ImGui::SetNextWindowPos({10, 10});
253
254 ::glfwSetWindowSize(window, GetWindowSize().width, GetWindowSize().height);
255 ::glfwSetWindowPos(window, 200, 100);
256 ::glfwShowWindow(window);
257
258 while (true) {
259 #if FML_OS_MACOSX
260 fml::ScopedNSAutoreleasePool pool;
261 #endif
262 ::glfwPollEvents();
263
264 if (::glfwWindowShouldClose(window)) {
265 return true;
266 }
267
268 ImGui_ImplGlfw_NewFrame();
269
270 Renderer::RenderCallback wrapped_callback =
271 [render_callback,
272 &renderer = renderer_](RenderTarget& render_target) -> bool {
273 ImGui::NewFrame();
274 ImGui::DockSpaceOverViewport(ImGui::GetMainViewport(),
275 ImGuiDockNodeFlags_PassthruCentralNode);
276 bool result = render_callback(render_target);
277 ImGui::Render();
278
279 // Render ImGui overlay.
280 {
281 auto buffer = renderer->GetContext()->CreateCommandBuffer();
282 if (!buffer) {
283 return false;
284 }
285 buffer->SetLabel("ImGui Command Buffer");
286
287 if (render_target.GetColorAttachments().empty()) {
288 return false;
289 }
290
291 auto color0 = render_target.GetColorAttachments().find(0)->second;
292 color0.load_action = LoadAction::kLoad;
293 if (color0.resolve_texture) {
294 color0.texture = color0.resolve_texture;
295 color0.resolve_texture = nullptr;
296 color0.store_action = StoreAction::kStore;
297 }
298 render_target.SetColorAttachment(color0, 0);
299
300 render_target.SetStencilAttachment(std::nullopt);
301 render_target.SetDepthAttachment(std::nullopt);
302
303 auto pass = buffer->CreateRenderPass(render_target);
304 if (!pass) {
305 return false;
306 }
307 pass->SetLabel("ImGui Render Pass");
308
309 ImGui_ImplImpeller_RenderDrawData(ImGui::GetDrawData(), *pass);
310
311 pass->EncodeCommands();
312 if (!renderer->GetContext()->GetCommandQueue()->Submit({buffer}).ok()) {
313 return false;
314 }
315 }
316
317 return result;
318 };
319
320 if (!renderer_->Render(impl_->AcquireSurfaceFrame(renderer_->GetContext()),
321 wrapped_callback)) {
322 VALIDATION_LOG << "Could not render into the surface.";
323 return false;
324 }
325
326 if (!ShouldKeepRendering()) {
327 break;
328 }
329 }
330
331 ::glfwHideWindow(window);
332
333 return true;
334 }
335
336 bool Playground::OpenPlaygroundHere(SinglePassCallback pass_callback) {
337 return OpenPlaygroundHere(
338 [context = GetContext(), &pass_callback](RenderTarget& render_target) {
339 auto buffer = context->CreateCommandBuffer();
340 if (!buffer) {
341 return false;
342 }
343 buffer->SetLabel("Playground Command Buffer");
344
345 auto pass = buffer->CreateRenderPass(render_target);
346 if (!pass) {
347 return false;
348 }
349 pass->SetLabel("Playground Render Pass");
350
351 if (!pass_callback(*pass)) {
352 return false;
353 }
354
355 pass->EncodeCommands();
356 if (!context->GetCommandQueue()->Submit({buffer}).ok()) {
357 return false;
358 }
359 return true;
360 });
361 }
362
363 std::shared_ptr<CompressedImage> Playground::LoadFixtureImageCompressed(
364 std::shared_ptr<fml::Mapping> mapping) {
365 auto compressed_image = CompressedImageSkia::Create(std::move(mapping));
366 if (!compressed_image) {
367 VALIDATION_LOG << "Could not create compressed image.";
368 return nullptr;
369 }
370
371 return compressed_image;
372 }
373
374 std::optional<DecompressedImage> Playground::DecodeImageRGBA(
375 const std::shared_ptr<CompressedImage>& compressed) {
376 if (compressed == nullptr) {
377 return std::nullopt;
378 }
379 // The decoded image is immediately converted into RGBA as that format is
380 // known to be supported everywhere. For image sources that don't need 32
381 // bit pixel strides, this is overkill. Since this is a test fixture we
382 // aren't necessarily trying to eke out memory savings here and instead
383 // favor simplicity.
384 auto image = compressed->Decode().ConvertToRGBA();
385 if (!image.IsValid()) {
386 VALIDATION_LOG << "Could not decode image.";
387 return std::nullopt;
388 }
389
390 return image;
391 }
392
393 static std::shared_ptr<Texture> CreateTextureForDecompressedImage(
394 const std::shared_ptr<Context>& context,
395 DecompressedImage& decompressed_image,
396 bool enable_mipmapping) {
397 auto texture_descriptor = TextureDescriptor{};
398 texture_descriptor.storage_mode = StorageMode::kHostVisible;
399 texture_descriptor.format = PixelFormat::kR8G8B8A8UNormInt;
400 texture_descriptor.size = decompressed_image.GetSize();
401 texture_descriptor.mip_count =
402 enable_mipmapping ? decompressed_image.GetSize().MipCount() : 1u;
403
404 auto texture =
405 context->GetResourceAllocator()->CreateTexture(texture_descriptor);
406 if (!texture) {
407 VALIDATION_LOG << "Could not allocate texture for fixture.";
408 return nullptr;
409 }
410
411 auto uploaded = texture->SetContents(decompressed_image.GetAllocation());
412 if (!uploaded) {
413 VALIDATION_LOG << "Could not upload texture to device memory for fixture.";
414 return nullptr;
415 }
416 if (enable_mipmapping) {
417 auto command_buffer = context->CreateCommandBuffer();
418 if (!command_buffer) {
419 FML_DLOG(ERROR)
420 << "Could not create command buffer for mipmap generation.";
421 return nullptr;
422 }
423 command_buffer->SetLabel("Mipmap Command Buffer");
424 auto blit_pass = command_buffer->CreateBlitPass();
425 blit_pass->SetLabel("Mipmap Blit Pass");
426 blit_pass->GenerateMipmap(texture);
427 blit_pass->EncodeCommands(context->GetResourceAllocator());
428 if (!context->GetCommandQueue()->Submit({command_buffer}).ok()) {
429 FML_DLOG(ERROR) << "Failed to submit blit pass command buffer.";
430 return nullptr;
431 }
432 }
433 return texture;
434 }
435
436 std::shared_ptr<Texture> Playground::CreateTextureForMapping(
437 const std::shared_ptr<Context>& context,
438 std::shared_ptr<fml::Mapping> mapping,
439 bool enable_mipmapping) {
440 auto image = Playground::DecodeImageRGBA(
441 Playground::LoadFixtureImageCompressed(std::move(mapping)));
442 if (!image.has_value()) {
443 return nullptr;
444 }
445 return CreateTextureForDecompressedImage(context, image.value(),
446 enable_mipmapping);
447 }
448
449 std::shared_ptr<Texture> Playground::CreateTextureForFixture(
450 const char* fixture_name,
451 bool enable_mipmapping) const {
452 auto texture = CreateTextureForMapping(renderer_->GetContext(),
453 OpenAssetAsMapping(fixture_name),
454 enable_mipmapping);
455 if (texture == nullptr) {
456 return nullptr;
457 }
458 texture->SetLabel(fixture_name);
459 return texture;
460 }
461
462 std::shared_ptr<Texture> Playground::CreateTextureCubeForFixture(
463 std::array<const char*, 6> fixture_names) const {
464 std::array<DecompressedImage, 6> images;
465 for (size_t i = 0; i < fixture_names.size(); i++) {
466 auto image = DecodeImageRGBA(
467 LoadFixtureImageCompressed(OpenAssetAsMapping(fixture_names[i])));
468 if (!image.has_value()) {
469 return nullptr;
470 }
471 images[i] = image.value();
472 }
473
474 auto texture_descriptor = TextureDescriptor{};
475 texture_descriptor.storage_mode = StorageMode::kHostVisible;
476 texture_descriptor.type = TextureType::kTextureCube;
477 texture_descriptor.format = PixelFormat::kR8G8B8A8UNormInt;
478 texture_descriptor.size = images[0].GetSize();
479 texture_descriptor.mip_count = 1u;
480
481 auto texture = renderer_->GetContext()->GetResourceAllocator()->CreateTexture(
482 texture_descriptor);
483 if (!texture) {
484 VALIDATION_LOG << "Could not allocate texture cube.";
485 return nullptr;
486 }
487 texture->SetLabel("Texture cube");
488
489 for (size_t i = 0; i < fixture_names.size(); i++) {
490 auto uploaded =
491 texture->SetContents(images[i].GetAllocation()->GetMapping(),
492 images[i].GetAllocation()->GetSize(), i);
493 if (!uploaded) {
494 VALIDATION_LOG << "Could not upload texture to device memory.";
495 return nullptr;
496 }
497 }
498
499 return texture;
500 }
501
502 void Playground::SetWindowSize(ISize size) {
503 window_size_ = size;
504 }
505
506 bool Playground::ShouldKeepRendering() const {
507 return true;
508 }
509
510 fml::Status Playground::SetCapabilities(
511 const std::shared_ptr<Capabilities>& capabilities) {
512 return impl_->SetCapabilities(capabilities);
513 }
514
515 bool Playground::WillRenderSomething() const {
516 return switches_.enable_playground;
517 }
518
519 } // namespace impeller
impeller::DecompressedImage
Definition: decompressed_image.h:17
impeller::Playground::ShouldOpenNewPlaygrounds
static bool ShouldOpenNewPlaygrounds()
Definition: playground.cc:161
impeller::PlaygroundImplVK::IsVulkanDriverPresent
static bool IsVulkanDriverPresent()
Definition: playground_impl_vk.cc:216
impeller::Playground::CreateTextureCubeForFixture
std::shared_ptr< Texture > CreateTextureCubeForFixture(std::array< const char *, 6 > fixture_names) const
Definition: playground.cc:462
impeller::LoadAction::kLoad
@ kLoad
impeller::PlaygroundBackend::kVulkan
@ kVulkan
impeller::CreateTextureForDecompressedImage
static std::shared_ptr< Texture > CreateTextureForDecompressedImage(const std::shared_ptr< Context > &context, DecompressedImage &decompressed_image, bool enable_mipmapping)
Definition: playground.cc:393
impeller::Scalar
float Scalar
Definition: scalar.h:18
impeller::Playground::WillRenderSomething
bool WillRenderSomething() const
Definition: playground.cc:515
impeller::Playground::ShouldKeepRendering
virtual bool ShouldKeepRendering() const
Definition: playground.cc:506
impeller::Renderer::RenderCallback
std::function< bool(RenderTarget &render_target)> RenderCallback
Definition: renderer.h:23
impeller::Playground::DecodeImageRGBA
static std::optional< DecompressedImage > DecodeImageRGBA(const std::shared_ptr< CompressedImage > &compressed)
Definition: playground.cc:374
impeller::Playground::GetSecondsElapsed
Scalar GetSecondsElapsed() const
Get the amount of time elapsed from the start of the playground's execution.
Definition: playground.cc:190
impeller::Playground::GetWindowSize
ISize GetWindowSize() const
Definition: playground.cc:182
impeller::PlaygroundBackend::kMetal
@ kMetal
impeller::PixelFormat::kR8G8B8A8UNormInt
@ kR8G8B8A8UNormInt
impeller::PlaygroundKeyCallback
static void PlaygroundKeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods)
Definition: playground.cc:165
impeller::PlaygroundBackendToString
std::string PlaygroundBackendToString(PlaygroundBackend backend)
Definition: playground.cc:44
formats.h
playground.h
impeller::CompressedImageSkia::Create
static std::shared_ptr< CompressedImage > Create(std::shared_ptr< const fml::Mapping > allocation)
Definition: compressed_image_skia.cc:18
impeller::PlaygroundBackend
PlaygroundBackend
Definition: playground.h:29
impeller::StorageMode::kHostVisible
@ kHostVisible
impeller::Playground::MakeContext
std::shared_ptr< Context > MakeContext() const
Definition: playground.cc:93
validation.h
impeller::PlaygroundSwitches::use_swiftshader
bool use_swiftshader
Definition: switches.h:28
impeller::TSize< int64_t >
render_pass.h
runtime_stage.h
impeller::Playground
Definition: playground.h:50
impeller::gShouldOpenNewPlaygrounds
static std::atomic_bool gShouldOpenNewPlaygrounds
Definition: playground.cc:159
impeller::Playground::SetupWindow
void SetupWindow()
Definition: playground.cc:135
impeller::TSize::Max
constexpr TSize Max(const TSize &o) const
Definition: size.h:81
impeller::InitializeGLFWOnce
static void InitializeGLFWOnce()
Definition: playground.cc:56
impeller::Playground::switches_
const PlaygroundSwitches switches_
Definition: playground.h:117
impeller::TextureType::kTextureCube
@ kTextureCube
impeller::RenderTarget
Definition: render_target.h:38
impeller::StoreAction::kStore
@ kStore
compressed_image_skia.h
impeller::Playground::SinglePassCallback
std::function< bool(RenderPass &pass)> SinglePassCallback
Definition: playground.h:52
impeller::PlaygroundImpl::Create
static std::unique_ptr< PlaygroundImpl > Create(PlaygroundBackend backend, PlaygroundSwitches switches)
Definition: playground_impl.cc:25
ImGui_ImplImpeller_Shutdown
void ImGui_ImplImpeller_Shutdown()
Definition: imgui_impl_impeller.cc:119
swiftshader_utilities.h
decompressed_image.h
impeller::Playground::~Playground
virtual ~Playground()
VALIDATION_LOG
#define VALIDATION_LOG
Definition: validation.h:73
command_buffer.h
allocator.h
ImGui_ImplImpeller_RenderDrawData
void ImGui_ImplImpeller_RenderDrawData(ImDrawData *draw_data, impeller::RenderPass &render_pass)
Definition: imgui_impl_impeller.cc:126
impeller::PlaygroundBackend::kOpenGLES
@ kOpenGLES
impeller::Playground::CreateTextureForMapping
static std::shared_ptr< Texture > CreateTextureForMapping(const std::shared_ptr< Context > &context, std::shared_ptr< fml::Mapping > mapping, bool enable_mipmapping=false)
Definition: playground.cc:436
playground_impl_vk.h
impeller::Playground::GetContentScale
Point GetContentScale() const
Definition: playground.cc:186
impeller::PlaygroundSwitches
Definition: switches.h:16
impeller::Playground::LoadFixtureImageCompressed
static std::shared_ptr< CompressedImage > LoadFixtureImageCompressed(std::shared_ptr< fml::Mapping > mapping)
Definition: playground.cc:363
impeller::Playground::GetWindowTitle
virtual std::string GetWindowTitle() const =0
impeller::DecompressedImage::GetAllocation
const std::shared_ptr< const fml::Mapping > & GetAllocation() const
Definition: decompressed_image.cc:41
impeller::TPoint< Scalar >
impeller::Playground::OpenAssetAsMapping
virtual std::unique_ptr< fml::Mapping > OpenAssetAsMapping(std::string asset_name) const =0
impeller::Playground::SetCapabilities
fml::Status SetCapabilities(const std::shared_ptr< Capabilities > &capabilities)
Definition: playground.cc:510
impeller::Playground::GetCursorPosition
Point GetCursorPosition() const
Definition: playground.cc:178
impeller::SetupSwiftshaderOnce
void SetupSwiftshaderOnce(bool use_swiftshader)
Find and setup the installable client driver for a locally built SwiftShader at known paths....
Definition: swiftshader_utilities.cc:54
impeller::Playground::SetupContext
void SetupContext(PlaygroundBackend backend)
Definition: playground.cc:123
impeller::Playground::SupportsBackend
static bool SupportsBackend(PlaygroundBackend backend)
Definition: playground.cc:99
context.h
impeller::Playground::OpenPlaygroundHere
bool OpenPlaygroundHere(const Renderer::RenderCallback &render_callback)
Definition: playground.cc:198
impeller::TextureDescriptor::storage_mode
StorageMode storage_mode
Definition: texture_descriptor.h:38
ImGui_ImplImpeller_Init
bool ImGui_ImplImpeller_Init(const std::shared_ptr< impeller::Context > &context)
Definition: imgui_impl_impeller.cc:56
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::Playground::TeardownWindow
void TeardownWindow()
Definition: playground.cc:150
impeller::Playground::Playground
Playground(PlaygroundSwitches switches)
Definition: playground.cc:82
impeller::Playground::GetContext
std::shared_ptr< Context > GetContext() const
Definition: playground.cc:89
impeller::TSize::MipCount
constexpr size_t MipCount() const
Definition: size.h:115
playground_impl.h
renderer.h
impeller
Definition: aiks_blur_unittests.cc:20
imgui_impl_impeller.h
impeller::Playground::SetWindowSize
void SetWindowSize(ISize size)
Definition: playground.cc:502
impeller::PlaygroundSwitches::enable_playground
bool enable_playground
Definition: switches.h:17
impeller::DecompressedImage::GetSize
const ISize & GetSize() const
Definition: decompressed_image.cc:33
compressed_image.h
impeller::Playground::CreateTextureForFixture
std::shared_ptr< Texture > CreateTextureForFixture(const char *fixture_name, bool enable_mipmapping=false) const
Definition: playground.cc:449