Flutter Impeller
impeller::SurfaceGLES Class Referencefinal

#include <surface_gles.h>

Inheritance diagram for impeller::SurfaceGLES:
impeller::Surface

Public Types

using SwapCallback = std::function< bool(void)>
 

Public Member Functions

 ~SurfaceGLES () override
 
- Public Member Functions inherited from impeller::Surface
 Surface ()
 
 Surface (const RenderTarget &target_desc)
 
virtual ~Surface ()
 
const ISizeGetSize () const
 
bool IsValid () const
 
const RenderTargetGetTargetRenderPassDescriptor () const
 

Static Public Member Functions

static std::unique_ptr< SurfaceWrapFBO (const std::shared_ptr< Context > &context, SwapCallback swap_callback, GLuint fbo, PixelFormat color_format, ISize fbo_size)
 

Detailed Description

Definition at line 18 of file surface_gles.h.

Member Typedef Documentation

◆ SwapCallback

using impeller::SurfaceGLES::SwapCallback = std::function<bool(void)>

Definition at line 20 of file surface_gles.h.

Constructor & Destructor Documentation

◆ ~SurfaceGLES()

impeller::SurfaceGLES::~SurfaceGLES ( )
overridedefault

Member Function Documentation

◆ WrapFBO()

std::unique_ptr< Surface > impeller::SurfaceGLES::WrapFBO ( const std::shared_ptr< Context > &  context,
SwapCallback  swap_callback,
GLuint  fbo,
PixelFormat  color_format,
ISize  fbo_size 
)
static

Definition at line 14 of file surface_gles.cc.

19  {
20  TRACE_EVENT0("impeller", "SurfaceGLES::WrapOnScreenFBO");
21 
22  if (context == nullptr || !context->IsValid() || !swap_callback) {
23  return nullptr;
24  }
25 
26  const auto& gl_context = ContextGLES::Cast(*context);
27 
28  TextureDescriptor color0_tex;
29  color0_tex.type = TextureType::kTexture2D;
30  color0_tex.format = color_format;
31  color0_tex.size = fbo_size;
32  color0_tex.usage = TextureUsage::kRenderTarget;
33  color0_tex.sample_count = SampleCount::kCount1;
34  color0_tex.storage_mode = StorageMode::kDevicePrivate;
35 
36  ColorAttachment color0;
37  color0.texture = std::make_shared<TextureGLES>(
38  gl_context.GetReactor(), color0_tex, TextureGLES::IsWrapped::kWrapped);
39  color0.clear_color = Color::DarkSlateGray();
40  color0.load_action = LoadAction::kClear;
41  color0.store_action = StoreAction::kStore;
42 
43  TextureDescriptor depth_stencil_texture_desc;
44  depth_stencil_texture_desc.type = TextureType::kTexture2D;
45  depth_stencil_texture_desc.format = color_format;
46  depth_stencil_texture_desc.size = fbo_size;
47  depth_stencil_texture_desc.usage = TextureUsage::kRenderTarget;
48  depth_stencil_texture_desc.sample_count = SampleCount::kCount1;
49 
50  auto depth_stencil_tex = std::make_shared<TextureGLES>(
51  gl_context.GetReactor(), depth_stencil_texture_desc,
53 
54  DepthAttachment depth0;
55  depth0.clear_depth = 0;
56  depth0.texture = depth_stencil_tex;
57  depth0.load_action = LoadAction::kClear;
58  depth0.store_action = StoreAction::kDontCare;
59 
60  StencilAttachment stencil0;
61  stencil0.clear_stencil = 0;
62  stencil0.texture = depth_stencil_tex;
63  stencil0.load_action = LoadAction::kClear;
64  stencil0.store_action = StoreAction::kDontCare;
65 
66  RenderTarget render_target_desc;
67 
68  render_target_desc.SetColorAttachment(color0, 0u);
69  render_target_desc.SetDepthAttachment(depth0);
70  render_target_desc.SetStencilAttachment(stencil0);
71 
72 #ifdef IMPELLER_DEBUG
73  gl_context.GetGPUTracer()->RecordRasterThread();
74 #endif // IMPELLER_DEBUG
75 
76  return std::unique_ptr<SurfaceGLES>(
77  new SurfaceGLES(std::move(swap_callback), render_target_desc));
78 }

References impeller::BackendCast< ContextGLES, Context >::Cast(), impeller::ColorAttachment::clear_color, impeller::DepthAttachment::clear_depth, impeller::StencilAttachment::clear_stencil, impeller::Color::DarkSlateGray(), impeller::TextureDescriptor::format, impeller::kClear, impeller::kCount1, impeller::kDevicePrivate, impeller::kDontCare, impeller::kRenderTarget, impeller::kStore, impeller::kTexture2D, impeller::TextureGLES::kWrapped, impeller::Attachment::load_action, impeller::TextureDescriptor::sample_count, impeller::RenderTarget::SetColorAttachment(), impeller::RenderTarget::SetDepthAttachment(), impeller::RenderTarget::SetStencilAttachment(), impeller::TextureDescriptor::size, impeller::TextureDescriptor::storage_mode, impeller::Attachment::store_action, impeller::Attachment::texture, impeller::TextureDescriptor::type, and impeller::TextureDescriptor::usage.


The documentation for this class was generated from the following files:
impeller::StoreAction::kDontCare
@ kDontCare
impeller::TextureUsage::kRenderTarget
@ kRenderTarget
impeller::Color::DarkSlateGray
static constexpr Color DarkSlateGray()
Definition: color.h:410
impeller::LoadAction::kClear
@ kClear
impeller::StorageMode::kDevicePrivate
@ kDevicePrivate
impeller::StoreAction::kStore
@ kStore
impeller::TextureType::kTexture2D
@ kTexture2D
impeller::BackendCast< ContextGLES, Context >::Cast
static ContextGLES & Cast(Context &base)
Definition: backend_cast.h:13
impeller::TextureGLES::IsWrapped::kWrapped
@ kWrapped
impeller::SampleCount::kCount1
@ kCount1