context.h File Reference

#include "dart_api.h"
#include "flutter/lib/gpu/export.h"
#include "flutter/lib/ui/dart_wrapper.h"
#include "impeller/renderer/context.h"

Go to the source code of this file.

Classes
class	flutter::gpu::Context

Namespaces
namespace	flutter
namespace	flutter::gpu

Functions
bool	flutter::gpu::SupportsNormalOffscreenMSAA (const impeller::Context &context)
FLUTTER_GPU_EXPORT Dart_Handle	InternalFlutterGpu_Context_InitializeDefault (Dart_Handle wrapper)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Context_GetBackendType (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Context_GetDefaultColorFormat (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Context_GetDefaultStencilFormat (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Context_GetDefaultDepthStencilFormat (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT int	InternalFlutterGpu_Context_GetMinimumUniformByteAlignment (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT bool	InternalFlutterGpu_Context_GetSupportsOffscreenMSAA (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT bool	InternalFlutterGpu_Context_GetSupportsFramebufferRenderMipmap (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT bool	InternalFlutterGpu_Context_GetSupportsManuallyMippedTextures (flutter::gpu::Context *wrapper)
FLUTTER_GPU_EXPORT bool	InternalFlutterGpu_Context_SupportsTextureCompression (flutter::gpu::Context *wrapper, int family)
FLUTTER_GPU_EXPORT bool	InternalFlutterGpu_Context_SupportsTextureFormat (flutter::gpu::Context *wrapper, int format, bool render_target, bool shader_read, bool shader_write)

Function Documentation

InternalFlutterGpu_Context_GetBackendType()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Context_GetBackendType ( flutter::gpu::Context *  wrapper )

extern

InternalFlutterGpu_Context_GetDefaultColorFormat()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Context_GetDefaultColorFormat ( flutter::gpu::Context *  wrapper )

extern

Definition at line 115 of file context.cc.

                                {
  return static_cast<int>(flutter::gpu::FromImpellerPixelFormat(
      wrapper->GetContext().GetCapabilities()->GetDefaultColorFormat()));
}

References flutter::gpu::FromImpellerPixelFormat(), impeller::Context::GetCapabilities(), and flutter::gpu::Context::GetContext().

InternalFlutterGpu_Context_GetDefaultDepthStencilFormat()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Context_GetDefaultDepthStencilFormat ( flutter::gpu::Context *  wrapper )

extern

Definition at line 127 of file context.cc.

                                {
  return static_cast<int>(flutter::gpu::FromImpellerPixelFormat(
      wrapper->GetContext().GetCapabilities()->GetDefaultDepthStencilFormat()));
}

References flutter::gpu::FromImpellerPixelFormat(), impeller::Context::GetCapabilities(), and flutter::gpu::Context::GetContext().

InternalFlutterGpu_Context_GetDefaultStencilFormat()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Context_GetDefaultStencilFormat ( flutter::gpu::Context *  wrapper )

extern

Definition at line 121 of file context.cc.

                                {
  return static_cast<int>(flutter::gpu::FromImpellerPixelFormat(
      wrapper->GetContext().GetCapabilities()->GetDefaultStencilFormat()));
}

References flutter::gpu::FromImpellerPixelFormat(), impeller::Context::GetCapabilities(), and flutter::gpu::Context::GetContext().

InternalFlutterGpu_Context_GetMinimumUniformByteAlignment()

FLUTTER_GPU_EXPORT int InternalFlutterGpu_Context_GetMinimumUniformByteAlignment ( flutter::gpu::Context *  wrapper )

extern

Definition at line 133 of file context.cc.

                                {
  return wrapper->GetContext().GetCapabilities()->GetMinimumUniformAlignment();
}

References impeller::Context::GetCapabilities(), and flutter::gpu::Context::GetContext().

InternalFlutterGpu_Context_GetSupportsFramebufferRenderMipmap()

FLUTTER_GPU_EXPORT bool InternalFlutterGpu_Context_GetSupportsFramebufferRenderMipmap ( flutter::gpu::Context *  wrapper )

extern

Definition at line 143 of file context.cc.

                                {
  return wrapper->GetContext()
      .GetCapabilities()
      ->SupportsFramebufferRenderMipmap();
}

References impeller::Context::GetCapabilities(), and flutter::gpu::Context::GetContext().

InternalFlutterGpu_Context_GetSupportsManuallyMippedTextures()

FLUTTER_GPU_EXPORT bool InternalFlutterGpu_Context_GetSupportsManuallyMippedTextures ( flutter::gpu::Context *  wrapper )

extern

Definition at line 150 of file context.cc.

                                {
  return wrapper->GetContext()
      .GetCapabilities()
      ->SupportsManuallyMippedTextures();
}

References impeller::Context::GetCapabilities(), and flutter::gpu::Context::GetContext().

InternalFlutterGpu_Context_GetSupportsOffscreenMSAA()

FLUTTER_GPU_EXPORT bool InternalFlutterGpu_Context_GetSupportsOffscreenMSAA ( flutter::gpu::Context *  wrapper )

extern

Definition at line 138 of file context.cc.

                                {
  return flutter::gpu::SupportsNormalOffscreenMSAA(wrapper->GetContext());
}

References flutter::gpu::Context::GetContext(), and flutter::gpu::SupportsNormalOffscreenMSAA().

InternalFlutterGpu_Context_InitializeDefault()

FLUTTER_GPU_EXPORT Dart_Handle InternalFlutterGpu_Context_InitializeDefault ( Dart_Handle  wrapper )

extern

Exports

Definition at line 102 of file context.cc.

                                                                              {
  std::optional<std::string> out_error;
  auto impeller_context = flutter::gpu::Context::GetDefaultContext(out_error);
  if (out_error.has_value()) {
    return tonic::ToDart(out_error.value());
  }
 
  auto res = fml::MakeRefCounted<flutter::gpu::Context>(impeller_context);
  res->AssociateWithDartWrapper(wrapper);
 
  return Dart_Null();
}

References flutter::gpu::Context::GetDefaultContext(), and tonic::ToDart().

InternalFlutterGpu_Context_SupportsTextureCompression()

FLUTTER_GPU_EXPORT bool InternalFlutterGpu_Context_SupportsTextureCompression ( flutter::gpu::Context *  wrapper, int  family  )

extern

Definition at line 157 of file context.cc.

                {
  return wrapper->GetContext().GetCapabilities()->SupportsTextureCompression(
      flutter::gpu::ToImpellerCompressedTextureFamily(family));
}

References impeller::Context::GetCapabilities(), flutter::gpu::Context::GetContext(), and flutter::gpu::ToImpellerCompressedTextureFamily().

InternalFlutterGpu_Context_SupportsTextureFormat()

FLUTTER_GPU_EXPORT bool InternalFlutterGpu_Context_SupportsTextureFormat ( flutter::gpu::Context *  wrapper, int  format, bool  render_target, bool  shader_read, bool  shader_write  )

extern

Definition at line 164 of file context.cc.

                       {
  const impeller::PixelFormat impeller_format =
      flutter::gpu::ToImpellerPixelFormat(format);
  if (impeller_format == impeller::PixelFormat::kUnknown) {
    return false;
  }
  // Compressed formats are sample-only: shader_read must be true, and
  // render-target or shader-write usage is never available.
  if (impeller::IsCompressed(impeller_format)) {
    if (render_target || shader_write || !shader_read) {
      return false;
    }
    return wrapper->GetContext().GetCapabilities()->SupportsTextureCompression(
        impeller::CompressedTextureFamilyForFormat(impeller_format));
  }
  // For uncompressed formats, today's Impeller capability surface does not
  // expose a per-format usage query, so this returns true. As that surface
  // grows it should be wired in here.
  return true;
}

References impeller::CompressedTextureFamilyForFormat(), format, impeller::Context::GetCapabilities(), flutter::gpu::Context::GetContext(), impeller::IsCompressed(), impeller::kUnknown, and flutter::gpu::ToImpellerPixelFormat().