QOpenGLTextureBlitterPrivate Class Reference

Collaboration diagram for QOpenGLTextureBlitterPrivate:

Classes
struct	Program

Public Types
enum	TextureMatrixUniform { User , Identity , IdentityFlipped }
enum	ProgramIndex { TEXTURE_2D , TEXTURE_EXTERNAL_OES , TEXTURE_RECTANGLE }

Public Member Functions
	QOpenGLTextureBlitterPrivate (QOpenGLTextureBlitter *q_ptr)
bool	buildProgram (ProgramIndex idx, const char *vs, const char *fs)
bool	ensureProgram (ProgramIndex idx)
void	blit (GLuint texture, const QMatrix4x4 &targetTransform, const QMatrix3x3 &sourceTransform)
void	blit (GLuint texture, const QMatrix4x4 &targetTransform, QOpenGLTextureBlitter::Origin origin)
QMatrix3x3	toTextureCoordinates (const QMatrix3x3 &sourceTransform) const
bool	prepareProgram (const QMatrix4x4 &vertexTransform)

Public Attributes
QOpenGLTextureBlitter *	q
QOpenGLBuffer	vertexBuffer
QOpenGLBuffer	textureBuffer
struct QOpenGLTextureBlitterPrivate::Program	programs [3]
bool	swizzle
float	opacity
QScopedPointer< QOpenGLVertexArrayObject >	vao
GLenum	currentTarget

Detailed Description

Definition at line 188 of file qopengltextureblitter.cpp.

Member Enumeration Documentation

ProgramIndex

enum QOpenGLTextureBlitterPrivate::ProgramIndex

Enumerator
TEXTURE_2D
TEXTURE_EXTERNAL_OES
TEXTURE_RECTANGLE

Definition at line 197 of file qopengltextureblitter.cpp.

TextureMatrixUniform

enum QOpenGLTextureBlitterPrivate::TextureMatrixUniform

Enumerator
User
Identity
IdentityFlipped

Definition at line 191 of file qopengltextureblitter.cpp.

Constructor & Destructor Documentation

QOpenGLTextureBlitterPrivate()

QOpenGLTextureBlitterPrivate::QOpenGLTextureBlitterPrivate ( QOpenGLTextureBlitter *  q_ptr )

inline

Definition at line 203 of file qopengltextureblitter.cpp.

Member Function Documentation

blit() [1/2]

void QOpenGLTextureBlitterPrivate::blit	(	GLuint	texture,
		const QMatrix4x4 &	targetTransform,
		const QMatrix3x3 &	sourceTransform
	)

Definition at line 318 of file qopengltextureblitter.cpp.

References QOpenGLContext::currentContext(), currentTarget, QOpenGLContext::functions(), QOpenGLFunctions::glDrawArrays(), prepareProgram(), sourceTransform(), targetToProgramIndex(), targetTransform(), toTextureCoordinates(), and User.

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blit() [2/2]

void QOpenGLTextureBlitterPrivate::blit	(	GLuint	texture,
		const QMatrix4x4 &	targetTransform,
		QOpenGLTextureBlitter::Origin	origin
	)

Definition at line 335 of file qopengltextureblitter.cpp.

References QOpenGLContext::currentContext(), currentTarget, QOpenGLContext::functions(), QOpenGLFunctions::glDrawArrays(), Identity, IdentityFlipped, QOpenGLTextureBlitter::OriginTopLeft, prepareProgram(), sourceTransform(), targetToProgramIndex(), targetTransform(), and toTextureCoordinates().

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buildProgram()

bool QOpenGLTextureBlitterPrivate::buildProgram	(	ProgramIndex	idx,
		const char *	vs,
		const char *	fs
	)

Definition at line 363 of file qopengltextureblitter.cpp.

References QOpenGLShader::Fragment, QOpenGLTextureBlitterPrivate::Program::glProgram, qWarning, QScopedPointer< T, Cleanup >::reset(), and QOpenGLShader::Vertex.

Referenced by ensureProgram().

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ensureProgram()

bool QOpenGLTextureBlitterPrivate::ensureProgram

(

ProgramIndex

idx

)

Definition at line 394 of file qopengltextureblitter.cpp.

References buildProgram(), QSurfaceFormat::CoreProfile, QOpenGLContext::currentContext(), QOpenGLContext::format(), fragment_shader150_rectangle, fragment_shader_external_oes, fragment_shader_rectangle, qMakePair(), TEXTURE_EXTERNAL_OES, TEXTURE_RECTANGLE, vertex_shader, and vertex_shader150.

Referenced by prepareProgram().

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prepareProgram()

bool QOpenGLTextureBlitterPrivate::prepareProgram

(

const QMatrix4x4 &

vertexTransform

)

Definition at line 268 of file qopengltextureblitter.cpp.

References QOpenGLBuffer::bind(), currentTarget, ensureProgram(), GL_FLOAT, opacity, QOpenGLBuffer::release(), swizzle, targetToProgramIndex(), textureBuffer, and vertexBuffer.

Referenced by blit(), and blit().

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toTextureCoordinates()

QMatrix3x3 QOpenGLTextureBlitterPrivate::toTextureCoordinates

(

const QMatrix3x3 &

sourceTransform

)

const

Definition at line 301 of file qopengltextureblitter.cpp.

References QOpenGLContext::currentContext(), currentTarget, GL_TEXTURE_HEIGHT, GL_TEXTURE_RECTANGLE, GL_TEXTURE_WIDTH, QMatrix4x4::scale(), sourceTransform(), and QMatrix4x4::toGenericMatrix().

Referenced by blit(), and blit().

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Member Data Documentation

currentTarget

GLenum QOpenGLTextureBlitterPrivate::currentTarget

Definition at line 250 of file qopengltextureblitter.cpp.

Referenced by blit(), blit(), prepareProgram(), and toTextureCoordinates().

opacity

float QOpenGLTextureBlitterPrivate::opacity

Definition at line 248 of file qopengltextureblitter.cpp.

Referenced by prepareProgram().

programs

struct QOpenGLTextureBlitterPrivate::Program QOpenGLTextureBlitterPrivate::programs[3]

q

QOpenGLTextureBlitter* QOpenGLTextureBlitterPrivate::q

Definition at line 221 of file qopengltextureblitter.cpp.

swizzle

bool QOpenGLTextureBlitterPrivate::swizzle

Definition at line 247 of file qopengltextureblitter.cpp.

Referenced by prepareProgram().

textureBuffer

QOpenGLBuffer QOpenGLTextureBlitterPrivate::textureBuffer

Definition at line 223 of file qopengltextureblitter.cpp.

Referenced by prepareProgram().

vao

QScopedPointer<QOpenGLVertexArrayObject> QOpenGLTextureBlitterPrivate::vao

Definition at line 249 of file qopengltextureblitter.cpp.

vertexBuffer

QOpenGLBuffer QOpenGLTextureBlitterPrivate::vertexBuffer

Definition at line 222 of file qopengltextureblitter.cpp.

Referenced by prepareProgram().

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

• qtbase/src/opengl/qopengltextureblitter.cpp