surface.h File Reference

#include <atomic>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "dart_api.h"
#include "flutter/display_list/image/dl_image.h"
#include "flutter/lib/gpu/command_buffer.h"
#include "flutter/lib/gpu/context.h"
#include "flutter/lib/gpu/export.h"
#include "flutter/lib/gpu/texture.h"
#include "flutter/lib/ui/dart_wrapper.h"
#include "impeller/core/formats.h"
#include "impeller/core/texture.h"
#include "impeller/geometry/size.h"
#include "impeller/renderer/context.h"

Go to the source code of this file.

Classes
class	flutter::gpu::Surface

Namespaces
namespace	flutter
namespace	flutter::gpu

Functions
FLUTTER_GPU_EXPORT Dart_Handle	InternalFlutterGpu_Surface_Initialize (Dart_Handle wrapper, flutter::gpu::Context *gpu_context, int width, int height, int format)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Surface_AcquireNextFrame (flutter::gpu::Surface *wrapper, Dart_Handle texture_wrapper)
FLUTTER_GPU_EXPORT Dart_Handle	InternalFlutterGpu_Surface_PresentFrame (flutter::gpu::Surface *wrapper, int texture_index, flutter::gpu::CommandBuffer *command_buffer)
FLUTTER_GPU_EXPORT void	InternalFlutterGpu_Surface_DiscardFrame (flutter::gpu::Surface *wrapper, int texture_index)
FLUTTER_GPU_EXPORT Dart_Handle	InternalFlutterGpu_Surface_GetCurrentImage (flutter::gpu::Surface *wrapper)
FLUTTER_GPU_EXPORT Dart_Handle	InternalFlutterGpu_Surface_Resize (flutter::gpu::Surface *wrapper, int width, int height)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Surface_GetBackingTextureCount (flutter::gpu::Surface *wrapper)

Function Documentation

InternalFlutterGpu_Surface_AcquireNextFrame()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Surface_AcquireNextFrame ( flutter::gpu::Surface *  wrapper, Dart_Handle  texture_wrapper  )

extern

Definition at line 276 of file surface.cc.

                                                                             {
  return wrapper->AcquireNextFrame(texture_wrapper);
}

References flutter::gpu::Surface::AcquireNextFrame().

InternalFlutterGpu_Surface_DiscardFrame()

FLUTTER_GPU_EXPORT void InternalFlutterGpu_Surface_DiscardFrame ( flutter::gpu::Surface *  wrapper, int  texture_index  )

extern

Definition at line 292 of file surface.cc.

                                                                {
  if (texture_index < 0) {
    return;
  }
  wrapper->DiscardFrame(static_cast<size_t>(texture_index));
}

References flutter::gpu::Surface::DiscardFrame().

InternalFlutterGpu_Surface_GetBackingTextureCount()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Surface_GetBackingTextureCount ( flutter::gpu::Surface *  wrapper )

extern

Definition at line 318 of file surface.cc.

                                {
  return static_cast<int>(wrapper->GetBackingTextureCount());
}

References flutter::gpu::Surface::GetBackingTextureCount().

InternalFlutterGpu_Surface_GetCurrentImage()

FLUTTER_GPU_EXPORT Dart_Handle InternalFlutterGpu_Surface_GetCurrentImage ( flutter::gpu::Surface *  wrapper )

extern

Definition at line 300 of file surface.cc.

                                {
  return wrapper->GetCurrentImage();
}

References flutter::gpu::Surface::GetCurrentImage().

InternalFlutterGpu_Surface_Initialize()

FLUTTER_GPU_EXPORT Dart_Handle InternalFlutterGpu_Surface_Initialize ( Dart_Handle  wrapper, flutter::gpu::Context *  gpu_context, int  width, int  height, int  format  )

extern

Exports

Definition at line 250 of file surface.cc.

                                 {
  if (width <= 0 || height <= 0) {
    return tonic::ToDart("GpuSurface dimensions must be greater than zero.");
  }
 
#if !IMPELLER_SUPPORTS_RENDERING
  return tonic::ToDart("GpuSurface requires Impeller rendering support.");
#else
  auto pixel_format = flutter::gpu::ToImpellerPixelFormat(format);
  if (pixel_format == impeller::PixelFormat::kUnknown) {
    return tonic::ToDart("Unsupported GpuSurface pixel format.");
  }
 
  auto res = fml::MakeRefCounted<flutter::gpu::Surface>(
      gpu_context->GetContextShared(), impeller::ISize{width, height},
      pixel_format);
  res->AssociateWithDartWrapper(wrapper);
  return Dart_Null();
#endif
}

References format, height, impeller::kUnknown, tonic::ToDart(), flutter::gpu::ToImpellerPixelFormat(), and width.

InternalFlutterGpu_Surface_PresentFrame()

FLUTTER_GPU_EXPORT Dart_Handle InternalFlutterGpu_Surface_PresentFrame ( flutter::gpu::Surface *  wrapper, int  texture_index, flutter::gpu::CommandBuffer *  command_buffer  )

extern

Definition at line 281 of file surface.cc.

                                             {
  if (texture_index < 0) {
    return tonic::ToDart("Invalid SurfaceFrame texture index.");
  }
  return wrapper->PresentFrame(static_cast<size_t>(texture_index),
                               *command_buffer);
}

References command_buffer, flutter::gpu::Surface::PresentFrame(), and tonic::ToDart().

InternalFlutterGpu_Surface_Resize()

FLUTTER_GPU_EXPORT Dart_Handle InternalFlutterGpu_Surface_Resize ( flutter::gpu::Surface *  wrapper, int  width, int  height  )

extern

Definition at line 305 of file surface.cc.

                                                          {
  if (width <= 0 || height <= 0) {
    return tonic::ToDart("GpuSurface dimensions must be greater than zero.");
  }
  auto error = wrapper->Resize(impeller::ISize{width, height});
  if (error.has_value()) {
    return tonic::ToDart(error.value());
  }
  return Dart_Null();
}

References error, height, flutter::gpu::Surface::Resize(), tonic::ToDart(), and width.