Public Member Functions
	TexImage2DData (PixelFormat pixel_format)

	TexImage2DData (PixelFormat pixel_format, std::shared_ptr< const fml::Mapping > mapping)

bool	IsValid () const

Public Attributes
GLint	internal_format = 0

GLenum	external_format = GL_NONE

GLenum	type = GL_NONE

std::shared_ptr< const fml::Mapping >	data

Detailed Description

Definition at line 128 of file texture_gles.cc.

Constructor & Destructor Documentation

◆ TexImage2DData() [1/2]

impeller::TexImage2DData::TexImage2DData ( PixelFormat pixel_format )

inlineexplicit

Definition at line 134 of file texture_gles.cc.

                                                    {
    switch (pixel_format) {
      case PixelFormat::kA8UNormInt:
        internal_format = GL_ALPHA;
        external_format = GL_ALPHA;
        type = GL_UNSIGNED_BYTE;
        break;
      case PixelFormat::kR8UNormInt:
        internal_format = GL_RED;
        external_format = GL_RED;
        type = GL_UNSIGNED_BYTE;
        break;
      case PixelFormat::kR8G8B8A8UNormInt:
      case PixelFormat::kB8G8R8A8UNormInt:
      case PixelFormat::kR8G8B8A8UNormIntSRGB:
      case PixelFormat::kB8G8R8A8UNormIntSRGB:
        internal_format = GL_RGBA;
        external_format = GL_RGBA;
        type = GL_UNSIGNED_BYTE;
        break;
      case PixelFormat::kR32G32B32A32Float:
        internal_format = GL_RGBA;
        external_format = GL_RGBA;
        type = GL_FLOAT;
        break;
      case PixelFormat::kR16G16B16A16Float:
        internal_format = GL_RGBA;
        external_format = GL_RGBA;
        type = GL_HALF_FLOAT;
        break;
      case PixelFormat::kS8UInt:
        // Pure stencil textures are only available in OpenGL 4.4+, which is
        // ~0% of mobile devices. Instead, we use a depth-stencil texture and
        // only use the stencil component.
        //
        // https://registry.khronos.org/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml
      case PixelFormat::kD24UnormS8Uint:
        internal_format = GL_DEPTH_STENCIL;
        external_format = GL_DEPTH_STENCIL;
        type = GL_UNSIGNED_INT_24_8;
        break;
      case PixelFormat::kUnknown:
      case PixelFormat::kD32FloatS8UInt:
      case PixelFormat::kR8G8UNormInt:
      case PixelFormat::kB10G10R10XRSRGB:
      case PixelFormat::kB10G10R10XR:
      case PixelFormat::kB10G10R10A10XR:
        return;
    }
    is_valid_ = true;
  }

◆ TexImage2DData() [2/2]

impeller::TexImage2DData::TexImage2DData	(	PixelFormat	pixel_format,
		std::shared_ptr< const fml::Mapping >	mapping
	)

inline

Definition at line 186 of file texture_gles.cc.

      : TexImage2DData(pixel_format) {
    data = std::move(mapping);
  }

Member Function Documentation

◆ IsValid()

bool impeller::TexImage2DData::IsValid ( ) const

inline

Definition at line 192 of file texture_gles.cc.

192{ return is_valid_; }

Member Data Documentation

◆ data

std::shared_ptr<const fml::Mapping> impeller::TexImage2DData::data

Definition at line 132 of file texture_gles.cc.

◆ external_format

GLenum impeller::TexImage2DData::external_format = GL_NONE

Definition at line 130 of file texture_gles.cc.

◆ internal_format

GLint impeller::TexImage2DData::internal_format = 0

Definition at line 129 of file texture_gles.cc.

◆ type

GLenum impeller::TexImage2DData::type = GL_NONE

Definition at line 131 of file texture_gles.cc.

The documentation for this struct was generated from the following file:

impeller/renderer/backend/gles/texture_gles.cc

Public Member Functions

Public Attributes