MythEGLDMABUF Class Reference

#include <libmythtv/opengl/mythegldmabuf.h>

Inheritance diagram for MythEGLDMABUF:

Public Member Functions
	MythEGLDMABUF (MythRenderOpenGL *Context)
	~MythEGLDMABUF ()=default
std::vector< MythVideoTextureOpenGL * >	CreateTextures (AVDRMFrameDescriptor *Desc, MythRenderOpenGL *Context, MythVideoFrame *Frame, bool UseSeparate, FrameScanType Scan=kScan_Progressive)

Static Public Member Functions
static bool	HaveDMABuf (MythRenderOpenGL *Context)
static void	ClearDMATextures (MythRenderOpenGL *Context, std::vector< MythVideoTextureOpenGL * > &Textures)

Private Member Functions
std::vector< MythVideoTextureOpenGL * >	CreateComposed (AVDRMFrameDescriptor *Desc, MythRenderOpenGL *Context, MythVideoFrame *Frame, FrameScanType Scan) const
	Create a single RGBA32 texture using the provided AVDRMFramDescriptor. More...
std::vector< MythVideoTextureOpenGL * >	CreateSeparate (AVDRMFrameDescriptor *Desc, MythRenderOpenGL *Context, MythVideoFrame *Frame) const
	Create multiple textures that represent the planes for the given AVDRMFrameDescriptor. More...
std::vector< MythVideoTextureOpenGL * >	CreateSeparate2 (AVDRMFrameDescriptor *Desc, MythRenderOpenGL *Context, MythVideoFrame *Frame) const
	Create multiple textures that represent the planes for the given AVDRMFrameDescriptor. More...

Private Attributes
bool	m_useModifiers { false }

Detailed Description

Definition at line 15 of file mythegldmabuf.h.

Constructor & Destructor Documentation

MythEGLDMABUF()

MythEGLDMABUF::MythEGLDMABUF ( MythRenderOpenGL *  Context )

explicit

Definition at line 18 of file mythegldmabuf.cpp.

~MythEGLDMABUF()

MythEGLDMABUF::~MythEGLDMABUF ( )

default

Member Function Documentation

HaveDMABuf()

bool MythEGLDMABUF::HaveDMABuf ( MythRenderOpenGL *  Context )

static

Definition at line 27 of file mythegldmabuf.cpp.

Referenced by MythDRMPRIMEInterop::GetDRMTypes(), and MythVAAPIInteropDRM::IsSupported().

CreateTextures()

std::vector< MythVideoTextureOpenGL * > MythEGLDMABUF::CreateTextures	(	AVDRMFrameDescriptor *	Desc,
		MythRenderOpenGL *	Context,
		MythVideoFrame *	Frame,
		bool	UseSeparate,
		FrameScanType	Scan = kScan_Progressive
	)

Definition at line 373 of file mythegldmabuf.cpp.

Referenced by MythDRMPRIMEInterop::Acquire(), MythVAAPIInteropDRM::AcquirePrime(), MythVAAPIInteropDRM::AcquireVAAPI(), and MythVAAPIInteropDRM::TestPrimeInterop().

ClearDMATextures()

void MythEGLDMABUF::ClearDMATextures ( MythRenderOpenGL *  Context, std::vector< MythVideoTextureOpenGL * > &  Textures  )

static

Definition at line 358 of file mythegldmabuf.cpp.

Referenced by CreateComposed(), CreateSeparate(), CreateSeparate2(), and MythVAAPIInteropDRM::TestPrimeInterop().

CreateComposed()

std::vector< MythVideoTextureOpenGL * > MythEGLDMABUF::CreateComposed ( AVDRMFrameDescriptor *  Desc, MythRenderOpenGL *  Context, MythVideoFrame *  Frame, FrameScanType  Scan  ) const

inlineprivate

Create a single RGBA32 texture using the provided AVDRMFramDescriptor.

Note

This assumes one layer with multiple planes, typically where the layer is a YUV format.

Definition at line 62 of file mythegldmabuf.cpp.

Referenced by CreateTextures().

CreateSeparate()

std::vector< MythVideoTextureOpenGL * > MythEGLDMABUF::CreateSeparate ( AVDRMFrameDescriptor *  Desc, MythRenderOpenGL *  Context, MythVideoFrame *  Frame  ) const

inlineprivate

Create multiple textures that represent the planes for the given AVDRMFrameDescriptor.

Note

This assumes multiple layers each with one plane.

Definition at line 179 of file mythegldmabuf.cpp.

Referenced by CreateTextures().

CreateSeparate2()

std::vector< MythVideoTextureOpenGL * > MythEGLDMABUF::CreateSeparate2 ( AVDRMFrameDescriptor *  Desc, MythRenderOpenGL *  Context, MythVideoFrame *  Frame  ) const

inlineprivate

Create multiple textures that represent the planes for the given AVDRMFrameDescriptor.

Note

This assumes one layer with multiple planes that represent a YUV format.

It is used where the OpenGL DMA BUF implementation does not support composing YUV formats. It offers better feature support (as we can enable colour controls, shader deinterlacing etc) but may not be as fast on low end hardware; it might not use hardware accelerated paths and shader deinterlacing may not be as fast as the simple EGL based onefield/bob deinterlacer. It is essentially the same as CreateSeparate but the DRM descriptor uses a different layout and we have to 'guess' the correct DRM_FORMATs for each plane.

Todo:

Add support for simple onefield/bob with YUV textures.

Definition at line 276 of file mythegldmabuf.cpp.

Referenced by CreateTextures().

Member Data Documentation

m_useModifiers

bool MythEGLDMABUF::m_useModifiers { false }

private

Definition at line 40 of file mythegldmabuf.h.

Referenced by CreateComposed(), CreateSeparate(), CreateSeparate2(), and MythEGLDMABUF().

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The documentation for this class was generated from the following files:

• mythtv/libs/libmythtv/opengl/mythegldmabuf.h
• mythtv/libs/libmythtv/opengl/mythegldmabuf.cpp