QOpenGLFunctions ¶

概要 ¶

详细描述 ¶

OpenGL ES 2.0 defines a subset of the OpenGL specification that is common across many desktop and embedded OpenGL implementations. However, it can be difficult to use the functions from that subset because they need to be resolved manually on desktop systems.

QOpenGLFunctions provides a guaranteed API that is available on all OpenGL systems and takes care of function resolution on systems that need it. The recommended way to use QOpenGLFunctions is by direct inheritance:

class MyGLWindow : public QWindow, protected QOpenGLFunctions
{
    Q_OBJECT
public:
    MyGLWindow(QScreen *screen = 0);
protected:
    void initializeGL();
    void paintGL();
    QOpenGLContext *m_context;
};
MyGLWindow(QScreen *screen)
  : QWindow(screen), QOpenGLWidget(parent)
{
    setSurfaceType(OpenGLSurface);
    create();
    // Create an OpenGL context
    m_context = new QOpenGLContext;
    m_context->create();
    // Setup scene and render it
    initializeGL();
    paintGL();
}
void MyGLWindow::initializeGL()
{
    m_context->makeCurrent(this);
    initializeOpenGLFunctions();
}
											

paintGL() function can then use any of the OpenGL ES 2.0 functions without explicit resolution, such as glActiveTexture() in the following example:

void MyGLWindow::paintGL()
{
    m_context->makeCurrent(this);
    glActiveTexture(GL_TEXTURE1);
    glBindTexture(GL_TEXTURE_2D, textureId);
    ...
    m_context->swapBuffers(this);
    m_context->doneCurrent();
}
											

QOpenGLFunctions can also be used directly for ad-hoc invocation of OpenGL ES 2.0 functions on all platforms:

QOpenGLFunctions glFuncs(QOpenGLContext::currentContext());
glFuncs.glActiveTexture(GL_TEXTURE1);
											

An alternative approach is to query the context’s associated QOpenGLFunctions instance. This is somewhat faster than the previous approach due to avoiding the creation of a new instance, but the difference is fairly small since the internal data structures are shared, and function resolving happens only once for a given context, regardless of the number of QOpenGLFunctions instances initialized for it.

QOpenGLFunctions *glFuncs = QOpenGLContext::currentContext()->functions();
glFuncs->glActiveTexture(GL_TEXTURE1);
											

QOpenGLFunctions provides wrappers for all OpenGL ES 2.0 functions, including the common subset of OpenGL 1.x and ES 2.0. While such functions, for example glClear() or glDrawArrays() , can be called also directly, as long as the application links to the platform-specific OpenGL library, calling them via QOpenGLFunctions enables the possibility of dynamically loading the OpenGL implementation.

hasOpenGLFeature() and openGLFeatures() functions can be used to determine if the OpenGL implementation has a major OpenGL ES 2.0 feature. For example, the following checks if non power of two textures are available:

QOpenGLFunctions funcs(QOpenGLContext::currentContext());
bool npot = funcs.hasOpenGLFeature(QOpenGLFunctions::NPOTTextures);
											

另请参阅

QOpenGLContext QSurfaceFormat

class QOpenGLFunctions ¶

QOpenGLFunctions(context)

param context

QOpenGLContext

Constructs a default function resolver. The resolver cannot be used until initializeOpenGLFunctions() is called to specify the context.

另请参阅

initializeOpenGLFunctions()

Constructs a function resolver for context 。若 context is None , then the resolver will be created for the current QOpenGLContext .

The context or another context in the group must be current.

An object constructed in this way can only be used with context and other contexts that share with it. Use initializeOpenGLFunctions() to change the object’s context association.

另请参阅

initializeOpenGLFunctions()

PySide2.QtGui.QOpenGLFunctions. OpenGLFeature ¶

This enum defines OpenGL and OpenGL ES features whose presence may depend on the implementation.

常量	描述
QOpenGLFunctions.Multitexture	glActiveTexture() function is available.
QOpenGLFunctions.Shaders	Shader functions are available.
QOpenGLFunctions.Buffers	Vertex and index buffer functions are available.
QOpenGLFunctions.Framebuffers	Framebuffer object functions are available.
QOpenGLFunctions.BlendColor	glBlendColor() 可用。
QOpenGLFunctions.BlendEquation	glBlendEquation() 可用。
QOpenGLFunctions.BlendEquationSeparate	glBlendEquationSeparate() 可用。
QOpenGLFunctions.BlendEquationAdvanced	Advanced blend equations are available.
QOpenGLFunctions.BlendFuncSeparate	glBlendFuncSeparate() 可用。
QOpenGLFunctions.BlendSubtract	Blend subtract mode is available.
QOpenGLFunctions.CompressedTextures	Compressed texture functions are available.
QOpenGLFunctions.Multisample	glSampleCoverage() function is available.
QOpenGLFunctions.StencilSeparate	Separate stencil functions are available.
QOpenGLFunctions.NPOTTextures	Non power of two textures are available.
QOpenGLFunctions.NPOTTextureRepeat	Non power of two textures can use GL_REPEAT as wrap parameter.
QOpenGLFunctions.FixedFunctionPipeline	The fixed function pipeline is available.
QOpenGLFunctions.TextureRGFormats	The GL_RED and GL_RG texture formats are available.
QOpenGLFunctions.MultipleRenderTargets	Multiple color attachments to framebuffer objects are available.

PySide2.QtGui.QOpenGLFunctions. glActiveTexture ( texture ) ¶

参数

texture – GLenum

Convenience function that calls ( texture ).

For more information, see the OpenGL ES 2.0 documentation for glActiveTexture() .

PySide2.QtGui.QOpenGLFunctions. glAttachShader ( program , shader ) ¶

参数

• program – GLuint

• shader – GLuint

Convenience function that calls ( program , shader ).

For more information, see the OpenGL ES 2.0 documentation for glAttachShader() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glBindAttribLocation ( program , index , name ) ¶

参数

• program – GLuint

• index – GLuint

• name – str

Convenience function that calls ( program , index , name ).

For more information, see the OpenGL ES 2.0 documentation for glBindAttribLocation() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glBindBuffer ( target , buffer ) ¶

参数

• target – GLenum

• buffer – GLuint

Convenience function that calls ( target , buffer ).

For more information, see the OpenGL ES 2.0 documentation for glBindBuffer() .

PySide2.QtGui.QOpenGLFunctions. glBindFramebuffer ( target , framebuffer ) ¶

参数

• target – GLenum

• framebuffer – GLuint

Convenience function that calls ( target , framebuffer ).

Note that Qt will translate a framebuffer argument of 0 to the currently bound QOpenGLContext ‘s defaultFramebufferObject().

For more information, see the OpenGL ES 2.0 documentation for glBindFramebuffer() .

PySide2.QtGui.QOpenGLFunctions. glBindRenderbuffer ( target , renderbuffer ) ¶

参数

• target – GLenum

• renderbuffer – GLuint

Convenience function that calls ( target , renderbuffer ).

For more information, see the OpenGL ES 2.0 documentation for glBindRenderbuffer() .

PySide2.QtGui.QOpenGLFunctions. glBindTexture ( target , texture ) ¶

参数

• target – GLenum

• texture – GLuint

Convenience function that calls ( target , texture ).

For more information, see the OpenGL ES 2.0 documentation for glBindTexture() .

PySide2.QtGui.QOpenGLFunctions. glBlendColor ( red , green , blue , alpha ) ¶

参数

• red – GLclampf

• green – GLclampf

• blue – GLclampf

• alpha – GLclampf

Convenience function that calls ( red , green , blue , alpha ).

For more information, see the OpenGL ES 2.0 documentation for glBlendColor() .

PySide2.QtGui.QOpenGLFunctions. glBlendEquation ( mode ) ¶

参数

mode – GLenum

Convenience function that calls ( mode ).

For more information, see the OpenGL ES 2.0 documentation for glBlendEquation() .

PySide2.QtGui.QOpenGLFunctions. glBlendEquationSeparate ( modeRGB , modeAlpha ) ¶

参数

• modeRGB – GLenum

• modeAlpha – GLenum

Convenience function that calls ( modeRGB , modeAlpha ).

For more information, see the OpenGL ES 2.0 documentation for glBlendEquationSeparate() .

PySide2.QtGui.QOpenGLFunctions. glBlendFunc ( sfactor , dfactor ) ¶

参数

• sfactor – GLenum

• dfactor – GLenum

Convenience function that calls ( sfactor , dfactor ).

For more information, see the OpenGL ES 2.0 documentation for glBlendFunc() .

PySide2.QtGui.QOpenGLFunctions. glBlendFuncSeparate ( srcRGB , dstRGB , srcAlpha , dstAlpha ) ¶

参数

• srcRGB – GLenum

• dstRGB – GLenum

• srcAlpha – GLenum

• dstAlpha – GLenum

Convenience function that calls ( srcRGB , dstRGB , srcAlpha , dstAlpha ).

For more information, see the OpenGL ES 2.0 documentation for glBlendFuncSeparate() .

PySide2.QtGui.QOpenGLFunctions. glCheckFramebufferStatus ( target ) ¶

参数

target – GLenum

返回类型

GLenum

Convenience function that calls ( target ).

For more information, see the OpenGL ES 2.0 documentation for glCheckFramebufferStatus() .

PySide2.QtGui.QOpenGLFunctions. glClear ( mask ) ¶

参数

mask – GLbitfield

Convenience function that calls ( mask ).

For more information, see the OpenGL ES 2.0 documentation for glClear() .

PySide2.QtGui.QOpenGLFunctions. glClearColor ( red , green , blue , alpha ) ¶

参数

• red – GLclampf

• green – GLclampf

• blue – GLclampf

• alpha – GLclampf

Convenience function that calls ( red , green , blue , alpha ).

For more information, see the OpenGL ES 2.0 documentation for glClearColor() .

PySide2.QtGui.QOpenGLFunctions. glClearDepthf ( depth ) ¶

参数

depth – GLclampf

Convenience function that calls glClearDepth( depth ) on desktop OpenGL systems and ( depth ) on embedded OpenGL ES systems.

For more information, see the OpenGL ES 2.0 documentation for glClearDepthf() .

PySide2.QtGui.QOpenGLFunctions. glClearStencil ( s ) ¶

参数

s – GLint

Convenience function that calls ( s ).

For more information, see the OpenGL ES 2.0 documentation for glClearStencil() .

PySide2.QtGui.QOpenGLFunctions. glColorMask ( red , green , blue , alpha ) ¶

参数

• red – GLboolean

• green – GLboolean

• blue – GLboolean

• alpha – GLboolean

Convenience function that calls ( red , green , blue , alpha ).

For more information, see the OpenGL ES 2.0 documentation for glColorMask() .

PySide2.QtGui.QOpenGLFunctions. glCompileShader ( shader ) ¶

参数

shader – GLuint

Convenience function that calls ( shader ).

For more information, see the OpenGL ES 2.0 documentation for glCompileShader() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glCompressedTexImage2D ( target , level , internalformat , width , height , border , imageSize , data ) ¶

参数

• target – GLenum

• level – GLint

• internalformat – GLenum

• width – GLsizei

• height – GLsizei

• border – GLint

• imageSize – GLsizei

• data – void

Convenience function that calls ( target , level , internalformat , width , height , border , imageSize , data ).

For more information, see the OpenGL ES 2.0 documentation for glCompressedTexImage2D() .

PySide2.QtGui.QOpenGLFunctions. glCompressedTexSubImage2D ( target , level , xoffset , yoffset , width , height , format , imageSize , data ) ¶

参数

• target – GLenum

• level – GLint

• xoffset – GLint

• yoffset – GLint

• width – GLsizei

• height – GLsizei

• format – GLenum

• imageSize – GLsizei

• data – void

Convenience function that calls ( target , level , xoffset , yoffset , width , height , format , imageSize , data ).

For more information, see the OpenGL ES 2.0 documentation for glCompressedTexSubImage2D() .

PySide2.QtGui.QOpenGLFunctions. glCopyTexImage2D ( target , level , internalformat , x , y , width , height , border ) ¶

参数

• target – GLenum

• level – GLint

• internalformat – GLenum

• x – GLint

• y – GLint

• width – GLsizei

• height – GLsizei

• border – GLint

Convenience function that calls ( target , level , internalformat , x , y , width , height , border ).

For more information, see the OpenGL ES 2.0 documentation for glCopyTexImage2D() .

PySide2.QtGui.QOpenGLFunctions. glCopyTexSubImage2D ( target , level , xoffset , yoffset , x , y , width , height ) ¶

参数

• target – GLenum

• level – GLint

• xoffset – GLint

• yoffset – GLint

• x – GLint

• y – GLint

• width – GLsizei

• height – GLsizei

Convenience function that calls ( target , level , xoffset , yoffset , x , y , width , height ).

For more information, see the OpenGL ES 2.0 documentation for glCopyTexSubImage2D() .

PySide2.QtGui.QOpenGLFunctions. glCreateProgram ( ) ¶

返回类型

GLuint

Convenience function that calls .

For more information, see the OpenGL ES 2.0 documentation for glCreateProgram() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glCreateShader ( type ) ¶

参数

type – GLenum

返回类型

GLuint

Convenience function that calls ( type ).

For more information, see the OpenGL ES 2.0 documentation for glCreateShader() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glCullFace ( mode ) ¶

参数

mode – GLenum

Convenience function that calls ( mode ).

For more information, see the OpenGL ES 2.0 documentation for glCullFace() .

PySide2.QtGui.QOpenGLFunctions. glDeleteBuffers ( n , buffers ) ¶

参数

• n – GLsizei

• buffers – GLuint

Convenience function that calls ( n , buffers ).

For more information, see the OpenGL ES 2.0 documentation for glDeleteBuffers() .

PySide2.QtGui.QOpenGLFunctions. glDeleteFramebuffers ( n , framebuffers ) ¶

参数

• n – GLsizei

• framebuffers – GLuint

Convenience function that calls ( n , framebuffers ).

For more information, see the OpenGL ES 2.0 documentation for glDeleteFramebuffers() .

PySide2.QtGui.QOpenGLFunctions. glDeleteProgram ( program ) ¶

参数

program – GLuint

Convenience function that calls ( program ).

For more information, see the OpenGL ES 2.0 documentation for glDeleteProgram() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glDeleteRenderbuffers ( n , renderbuffers ) ¶

参数

• n – GLsizei

• renderbuffers – GLuint

Convenience function that calls ( n , renderbuffers ).

For more information, see the OpenGL ES 2.0 documentation for glDeleteRenderbuffers() .

PySide2.QtGui.QOpenGLFunctions. glDeleteShader ( shader ) ¶

参数

shader – GLuint

Convenience function that calls ( shader ).

For more information, see the OpenGL ES 2.0 documentation for glDeleteShader() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glDeleteTextures ( n , textures ) ¶

参数

• n – GLsizei

• textures – GLuint

Convenience function that calls ( n , textures ).

For more information, see the OpenGL ES 2.0 documentation for glDeleteTextures() .

PySide2.QtGui.QOpenGLFunctions. glDepthFunc ( func ) ¶

参数

func – GLenum

Convenience function that calls ( func ).

For more information, see the OpenGL ES 2.0 documentation for glDepthFunc() .

PySide2.QtGui.QOpenGLFunctions. glDepthMask ( flag ) ¶

参数

flag – GLboolean

Convenience function that calls ( flag ).

For more information, see the OpenGL ES 2.0 documentation for glDepthMask() .

PySide2.QtGui.QOpenGLFunctions. glDepthRangef ( zNear , zFar ) ¶

参数

• zNear – GLclampf

• zFar – GLclampf

Convenience function that calls glDepthRange( zNear , zFar ) on desktop OpenGL systems and ( zNear , zFar ) on embedded OpenGL ES systems.

For more information, see the OpenGL ES 2.0 documentation for glDepthRangef() .

PySide2.QtGui.QOpenGLFunctions. glDetachShader ( program , shader ) ¶

参数

• program – GLuint

• shader – GLuint

Convenience function that calls ( program , shader ).

For more information, see the OpenGL ES 2.0 documentation for glDetachShader() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glDisable ( cap ) ¶

参数

cap – GLenum

Convenience function that calls ( cap ).

For more information, see the OpenGL ES 2.0 documentation for glDisable() .

PySide2.QtGui.QOpenGLFunctions. glDisableVertexAttribArray ( index ) ¶

参数

index – GLuint

Convenience function that calls ( index ).

For more information, see the OpenGL ES 2.0 documentation for glDisableVertexAttribArray() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glDrawArrays ( mode , first , count ) ¶

参数

• mode – GLenum

• first – GLint

• count – GLsizei

Convenience function that calls ( mode , first , count ).

For more information, see the OpenGL ES 2.0 documentation for glDrawArrays() .

PySide2.QtGui.QOpenGLFunctions. glDrawElements ( mode , count , type , indices ) ¶

参数

• mode – GLenum

• count – GLsizei

• type – GLenum

• indices – void

Convenience function that calls ( mode , count , type , indices ).

For more information, see the OpenGL ES 2.0 documentation for glDrawElements() .

PySide2.QtGui.QOpenGLFunctions. glEnable ( cap ) ¶

参数

cap – GLenum

Convenience function that calls ( cap ).

For more information, see the OpenGL ES 2.0 documentation for glEnable() .

PySide2.QtGui.QOpenGLFunctions. glEnableVertexAttribArray ( index ) ¶

参数

index – GLuint

Convenience function that calls ( index ).

For more information, see the OpenGL ES 2.0 documentation for glEnableVertexAttribArray() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glFinish ( ) ¶

Convenience function that calls .

For more information, see the OpenGL ES 2.0 documentation for glFinish() .

PySide2.QtGui.QOpenGLFunctions. glFlush ( ) ¶

Convenience function that calls .

For more information, see the OpenGL ES 2.0 documentation for glFlush() .

PySide2.QtGui.QOpenGLFunctions. glFramebufferRenderbuffer ( target , attachment , renderbuffertarget , renderbuffer ) ¶

参数

• target – GLenum

• attachment – GLenum

• renderbuffertarget – GLenum

• renderbuffer – GLuint

Convenience function that calls ( target , attachment , renderbuffertarget , renderbuffer ).

For more information, see the OpenGL ES 2.0 documentation for glFramebufferRenderbuffer() .

PySide2.QtGui.QOpenGLFunctions. glFramebufferTexture2D ( target , attachment , textarget , texture , level ) ¶

参数

• target – GLenum

• attachment – GLenum

• textarget – GLenum

• texture – GLuint

• level – GLint

Convenience function that calls ( target , attachment , textarget , texture , level ).

For more information, see the OpenGL ES 2.0 documentation for glFramebufferTexture2D() .

PySide2.QtGui.QOpenGLFunctions. glFrontFace ( mode ) ¶

参数

mode – GLenum

Convenience function that calls ( mode ).

For more information, see the OpenGL ES 2.0 documentation for glFrontFace() .

PySide2.QtGui.QOpenGLFunctions. glGenBuffers ( n , buffers ) ¶

参数

• n – GLsizei

• buffers – GLuint

Convenience function that calls ( n , buffers ).

For more information, see the OpenGL ES 2.0 documentation for glGenBuffers() .

PySide2.QtGui.QOpenGLFunctions. glGenFramebuffers ( n , framebuffers ) ¶

参数

• n – GLsizei

• framebuffers – GLuint

Convenience function that calls ( n , framebuffers ).

For more information, see the OpenGL ES 2.0 documentation for glGenFramebuffers() .

PySide2.QtGui.QOpenGLFunctions. glGenRenderbuffers ( n , renderbuffers ) ¶

参数

• n – GLsizei

• renderbuffers – GLuint

Convenience function that calls ( n , renderbuffers ).

For more information, see the OpenGL ES 2.0 documentation for glGenRenderbuffers() .

PySide2.QtGui.QOpenGLFunctions. glGenTextures ( n , textures ) ¶

参数

• n – GLsizei

• textures – GLuint

Convenience function that calls ( n , textures ).

For more information, see the OpenGL ES 2.0 documentation for glGenTextures() .

PySide2.QtGui.QOpenGLFunctions. glGenerateMipmap ( target ) ¶

参数

target – GLenum

Convenience function that calls ( target ).

For more information, see the OpenGL ES 2.0 documentation for glGenerateMipmap() .

PySide2.QtGui.QOpenGLFunctions. glGetAttachedShaders ( program , maxcount , count , shaders ) ¶

参数

• program – GLuint

• maxcount – GLsizei

• count – GLsizei

• shaders – GLuint

Convenience function that calls ( program , maxcount , count , shaders ).

For more information, see the OpenGL ES 2.0 documentation for glGetAttachedShaders() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetAttribLocation ( program , name ) ¶

参数

• program – GLuint

• name – str

返回类型

GLint

Convenience function that calls ( program , name ).

For more information, see the OpenGL ES 2.0 documentation for glGetAttribLocation() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetBufferParameteriv ( target , pname , params ) ¶

参数

• target – GLenum

• pname – GLenum

• params – GLint

Convenience function that calls ( target , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetBufferParameteriv() .

PySide2.QtGui.QOpenGLFunctions. glGetError ( ) ¶

返回类型

GLenum

Convenience function that calls .

For more information, see the OpenGL ES 2.0 documentation for glGetError() .

PySide2.QtGui.QOpenGLFunctions. glGetFloatv ( pname , params ) ¶

参数

• pname – GLenum

• params – GLfloat

Convenience function that calls ( pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetFloatv() .

PySide2.QtGui.QOpenGLFunctions. glGetFramebufferAttachmentParameteriv ( target , attachment , pname , params ) ¶

参数

• target – GLenum

• attachment – GLenum

• pname – GLenum

• params – GLint

Convenience function that calls ( target , attachment , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetFramebufferAttachmentParameteriv() .

PySide2.QtGui.QOpenGLFunctions. glGetIntegerv ( pname , params ) ¶

参数

• pname – GLenum

• params – GLint

Convenience function that calls ( pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetIntegerv() .

PySide2.QtGui.QOpenGLFunctions. glGetProgramiv ( program , pname , params ) ¶

参数

• program – GLuint

• pname – GLenum

• params – GLint

Convenience function that calls ( program , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetProgramiv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetRenderbufferParameteriv ( target , pname , params ) ¶

参数

• target – GLenum

• pname – GLenum

• params – GLint

Convenience function that calls ( target , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetRenderbufferParameteriv() .

PySide2.QtGui.QOpenGLFunctions. glGetShaderPrecisionFormat ( shadertype , precisiontype , range , precision ) ¶

参数

• shadertype – GLenum

• precisiontype – GLenum

• range – GLint

• precision – GLint

Convenience function that calls ( shadertype , precisiontype , range , precision ).

For more information, see the OpenGL ES 2.0 documentation for glGetShaderPrecisionFormat() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetShaderiv ( shader , pname , params ) ¶

参数

• shader – GLuint

• pname – GLenum

• params – GLint

Convenience function that calls ( shader , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetShaderiv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetString ( name ) ¶

参数

name – GLenum

返回类型

GLubyte

Convenience function that calls ( name ).

For more information, see the OpenGL ES 2.0 documentation for glGetString() .

PySide2.QtGui.QOpenGLFunctions. glGetTexParameterfv ( target , pname , params ) ¶

参数

• target – GLenum

• pname – GLenum

• params – GLfloat

Convenience function that calls ( target , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetTexParameterfv() .

PySide2.QtGui.QOpenGLFunctions. glGetTexParameteriv ( target , pname , params ) ¶

参数

• target – GLenum

• pname – GLenum

• params – GLint

Convenience function that calls ( target , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetTexParameteriv() .

PySide2.QtGui.QOpenGLFunctions. glGetUniformLocation ( program , name ) ¶

参数

• program – GLuint

• name – str

返回类型

GLint

Convenience function that calls ( program , name ).

For more information, see the OpenGL ES 2.0 documentation for glGetUniformLocation() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetUniformfv ( program , location , params ) ¶

参数

• program – GLuint

• location – GLint

• params – GLfloat

Convenience function that calls ( program , location , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetUniformfv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetUniformiv ( program , location , params ) ¶

参数

• program – GLuint

• location – GLint

• params – GLint

Convenience function that calls ( program , location , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetUniformiv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetVertexAttribfv ( index , pname , params ) ¶

参数

• index – GLuint

• pname – GLenum

• params – GLfloat

Convenience function that calls ( index , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetVertexAttribfv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glGetVertexAttribiv ( index , pname , params ) ¶

参数

• index – GLuint

• pname – GLenum

• params – GLint

Convenience function that calls ( index , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glGetVertexAttribiv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glHint ( target , mode ) ¶

参数

• target – GLenum

• mode – GLenum

Convenience function that calls ( target , mode ).

For more information, see the OpenGL ES 2.0 documentation for glHint() .

PySide2.QtGui.QOpenGLFunctions. glIsBuffer ( buffer ) ¶

参数

buffer – GLuint

返回类型

GLboolean

Convenience function that calls ( buffer ).

For more information, see the OpenGL ES 2.0 documentation for glIsBuffer() .

PySide2.QtGui.QOpenGLFunctions. glIsEnabled ( cap ) ¶

参数

cap – GLenum

返回类型

GLboolean

Convenience function that calls ( cap ).

For more information, see the OpenGL ES 2.0 documentation for glIsEnabled() .

PySide2.QtGui.QOpenGLFunctions. glIsFramebuffer ( framebuffer ) ¶

参数

framebuffer – GLuint

返回类型

GLboolean

Convenience function that calls ( framebuffer ).

For more information, see the OpenGL ES 2.0 documentation for glIsFramebuffer() .

PySide2.QtGui.QOpenGLFunctions. glIsProgram ( program ) ¶

参数

program – GLuint

返回类型

GLboolean

Convenience function that calls ( program ).

For more information, see the OpenGL ES 2.0 documentation for glIsProgram() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glIsRenderbuffer ( renderbuffer ) ¶

参数

renderbuffer – GLuint

返回类型

GLboolean

Convenience function that calls ( renderbuffer ).

For more information, see the OpenGL ES 2.0 documentation for glIsRenderbuffer() .

PySide2.QtGui.QOpenGLFunctions. glIsShader ( shader ) ¶

参数

shader – GLuint

返回类型

GLboolean

Convenience function that calls ( shader ).

For more information, see the OpenGL ES 2.0 documentation for glIsShader() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glIsTexture ( texture ) ¶

参数

texture – GLuint

返回类型

GLboolean

Convenience function that calls ( texture ).

For more information, see the OpenGL ES 2.0 documentation for glIsTexture() .

PySide2.QtGui.QOpenGLFunctions. glLineWidth ( width ) ¶

参数

width – GLfloat

Convenience function that calls ( width ).

For more information, see the OpenGL ES 2.0 documentation for glLineWidth() .

PySide2.QtGui.QOpenGLFunctions. glLinkProgram ( program ) ¶

参数

program – GLuint

Convenience function that calls ( program ).

For more information, see the OpenGL ES 2.0 documentation for glLinkProgram() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glPixelStorei ( pname , param ) ¶

参数

• pname – GLenum

• param – GLint

Convenience function that calls ( pname , param ).

For more information, see the OpenGL ES 2.0 documentation for glPixelStorei() .

PySide2.QtGui.QOpenGLFunctions. glPolygonOffset ( factor , units ) ¶

参数

• factor – GLfloat

• units – GLfloat

Convenience function that calls ( factor , units ).

For more information, see the OpenGL ES 2.0 documentation for glPolygonOffset() .

PySide2.QtGui.QOpenGLFunctions. glReadPixels ( x , y , width , height , format , type , pixels ) ¶

参数

• x – GLint

• y – GLint

• width – GLsizei

• height – GLsizei

• format – GLenum

• type – GLenum

• pixels – void

Convenience function that calls ( x , y , width , height , format , type , pixels ).

For more information, see the OpenGL ES 2.0 documentation for glReadPixels() .

PySide2.QtGui.QOpenGLFunctions. glReleaseShaderCompiler ( ) ¶

Convenience function that calls .

For more information, see the OpenGL ES 2.0 documentation for glReleaseShaderCompiler() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glRenderbufferStorage ( target , internalformat , width , height ) ¶

参数

• target – GLenum

• internalformat – GLenum

• width – GLsizei

• height – GLsizei

Convenience function that calls ( target , internalformat , width , height ).

For more information, see the OpenGL ES 2.0 documentation for glRenderbufferStorage() .

PySide2.QtGui.QOpenGLFunctions. glSampleCoverage ( value , invert ) ¶

参数

• value – GLclampf

• invert – GLboolean

Convenience function that calls ( value , invert ).

For more information, see the OpenGL ES 2.0 documentation for glSampleCoverage() .

PySide2.QtGui.QOpenGLFunctions. glScissor ( x , y , width , height ) ¶

参数

• x – GLint

• y – GLint

• width – GLsizei

• height – GLsizei

Convenience function that calls ( x , y , width , height ).

For more information, see the OpenGL ES 2.0 documentation for glScissor() .

PySide2.QtGui.QOpenGLFunctions. glShaderBinary ( n , shaders , binaryformat , binary , length ) ¶

参数

• n – GLint

• shaders – GLuint

• binaryformat – GLenum

• binary – void

• length – GLint

Convenience function that calls ( n , shaders , binaryformat , binary , length ).

For more information, see the OpenGL ES 2.0 documentation for glShaderBinary() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glStencilFunc ( func , ref , mask ) ¶

参数

• func – GLenum

• ref – GLint

• mask – GLuint

Convenience function that calls ( func , ref , mask ).

For more information, see the OpenGL ES 2.0 documentation for glStencilFunc() .

PySide2.QtGui.QOpenGLFunctions. glStencilFuncSeparate ( face , func , ref , mask ) ¶

参数

• face – GLenum

• func – GLenum

• ref – GLint

• mask – GLuint

Convenience function that calls ( face , func , ref , mask ).

For more information, see the OpenGL ES 2.0 documentation for glStencilFuncSeparate() .

PySide2.QtGui.QOpenGLFunctions. glStencilMask ( mask ) ¶

参数

mask – GLuint

Convenience function that calls ( mask ).

For more information, see the OpenGL ES 2.0 documentation for glStencilMask() .

PySide2.QtGui.QOpenGLFunctions. glStencilMaskSeparate ( face , mask ) ¶

参数

• face – GLenum

• mask – GLuint

Convenience function that calls ( face , mask ).

For more information, see the OpenGL ES 2.0 documentation for glStencilMaskSeparate() .

PySide2.QtGui.QOpenGLFunctions. glStencilOp ( fail , zfail , zpass ) ¶

参数

• fail – GLenum

• zfail – GLenum

• zpass – GLenum

Convenience function that calls ( fail , zfail , zpass ).

For more information, see the OpenGL ES 2.0 documentation for glStencilOp() .

PySide2.QtGui.QOpenGLFunctions. glStencilOpSeparate ( face , fail , zfail , zpass ) ¶

参数

• face – GLenum

• fail – GLenum

• zfail – GLenum

• zpass – GLenum

Convenience function that calls ( face , fail , zfail , zpass ).

For more information, see the OpenGL ES 2.0 documentation for glStencilOpSeparate() .

PySide2.QtGui.QOpenGLFunctions. glTexImage2D ( target , level , internalformat , width , height , border , format , type , pixels ) ¶

参数

• target – GLenum

• level – GLint

• internalformat – GLint

• width – GLsizei

• height – GLsizei

• border – GLint

• format – GLenum

• type – GLenum

• pixels – void

Convenience function that calls ( target , level , internalformat , width , height , border , format , type , pixels ).

For more information, see the OpenGL ES 2.0 documentation for glTexImage2D() .

PySide2.QtGui.QOpenGLFunctions. glTexParameterf ( target , pname , param ) ¶

参数

• target – GLenum

• pname – GLenum

• param – GLfloat

Convenience function that calls ( target , pname , param ).

For more information, see the OpenGL ES 2.0 documentation for glTexParameterf() .

PySide2.QtGui.QOpenGLFunctions. glTexParameterfv ( target , pname , params ) ¶

参数

• target – GLenum

• pname – GLenum

• params – GLfloat

Convenience function that calls ( target , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glTexParameterfv() .

PySide2.QtGui.QOpenGLFunctions. glTexParameteri ( target , pname , param ) ¶

参数

• target – GLenum

• pname – GLenum

• param – GLint

Convenience function that calls ( target , pname , param ).

For more information, see the OpenGL ES 2.0 documentation for glTexParameteri() .

PySide2.QtGui.QOpenGLFunctions. glTexParameteriv ( target , pname , params ) ¶

参数

• target – GLenum

• pname – GLenum

• params – GLint

Convenience function that calls ( target , pname , params ).

For more information, see the OpenGL ES 2.0 documentation for glTexParameteriv() .

PySide2.QtGui.QOpenGLFunctions. glTexSubImage2D ( target , level , xoffset , yoffset , width , height , format , type , pixels ) ¶

参数

• target – GLenum

• level – GLint

• xoffset – GLint

• yoffset – GLint

• width – GLsizei

• height – GLsizei

• format – GLenum

• type – GLenum

• pixels – void

Convenience function that calls ( target , level , xoffset , yoffset , width , height , format , type , pixels ).

For more information, see the OpenGL ES 2.0 documentation for glTexSubImage2D() .

PySide2.QtGui.QOpenGLFunctions. glUniform1f ( location , x ) ¶

参数

• location – GLint

• x – GLfloat

Convenience function that calls ( location , x ).

For more information, see the OpenGL ES 2.0 documentation for glUniform1f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform1fv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLfloat

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform1fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform1i ( location , x ) ¶

参数

• location – GLint

• x – GLint

Convenience function that calls ( location , x ).

For more information, see the OpenGL ES 2.0 documentation for glUniform1i() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform1iv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLint

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform1iv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform2f ( location , x , y ) ¶

参数

• location – GLint

• x – GLfloat

• y – GLfloat

Convenience function that calls ( location , x , y ).

For more information, see the OpenGL ES 2.0 documentation for glUniform2f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform2fv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLfloat

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform2fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform2i ( location , x , y ) ¶

参数

• location – GLint

• x – GLint

• y – GLint

Convenience function that calls ( location , x , y ).

For more information, see the OpenGL ES 2.0 documentation for glUniform2i() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform2iv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLint

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform2iv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform3f ( location , x , y , z ) ¶

参数

• location – GLint

• x – GLfloat

• y – GLfloat

• z – GLfloat

Convenience function that calls ( location , x , y , z ).

For more information, see the OpenGL ES 2.0 documentation for glUniform3f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform3fv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLfloat

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform3fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform3i ( location , x , y , z ) ¶

参数

• location – GLint

• x – GLint

• y – GLint

• z – GLint

Convenience function that calls ( location , x , y , z ).

For more information, see the OpenGL ES 2.0 documentation for glUniform3i() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform3iv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLint

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform3iv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform4f ( location , x , y , z , w ) ¶

参数

• location – GLint

• x – GLfloat

• y – GLfloat

• z – GLfloat

• w – GLfloat

Convenience function that calls ( location , x , y , z , w ).

For more information, see the OpenGL ES 2.0 documentation for glUniform4f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform4fv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLfloat

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform4fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform4i ( location , x , y , z , w ) ¶

参数

• location – GLint

• x – GLint

• y – GLint

• z – GLint

• w – GLint

Convenience function that calls ( location , x , y , z , w ).

For more information, see the OpenGL ES 2.0 documentation for glUniform4i() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniform4iv ( location , count , v ) ¶

参数

• location – GLint

• count – GLsizei

• v – GLint

Convenience function that calls ( location , count , v ).

For more information, see the OpenGL ES 2.0 documentation for glUniform4iv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniformMatrix2fv ( location , count , transpose , value ) ¶

参数

• location – GLint

• count – GLsizei

• transpose – GLboolean

• value – GLfloat

Convenience function that calls ( location , count , transpose , value ).

For more information, see the OpenGL ES 2.0 documentation for glUniformMatrix2fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniformMatrix3fv ( location , count , transpose , value ) ¶

参数

• location – GLint

• count – GLsizei

• transpose – GLboolean

• value – GLfloat

Convenience function that calls ( location , count , transpose , value ).

For more information, see the OpenGL ES 2.0 documentation for glUniformMatrix3fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUniformMatrix4fv ( location , count , transpose , value ) ¶

参数

• location – GLint

• count – GLsizei

• transpose – GLboolean

• value – GLfloat

Convenience function that calls ( location , count , transpose , value ).

For more information, see the OpenGL ES 2.0 documentation for glUniformMatrix4fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glUseProgram ( program ) ¶

参数

program – GLuint

Convenience function that calls ( program ).

For more information, see the OpenGL ES 2.0 documentation for glUseProgram() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glValidateProgram ( program ) ¶

参数

program – GLuint

Convenience function that calls ( program ).

For more information, see the OpenGL ES 2.0 documentation for glValidateProgram() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib1f ( indx , x ) ¶

参数

• indx – GLuint

• x – GLfloat

Convenience function that calls ( indx , x ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib1f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib1fv ( indx , values ) ¶

参数

• indx – GLuint

• values – GLfloat

Convenience function that calls ( indx , values ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib1fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib2f ( indx , x , y ) ¶

参数

• indx – GLuint

• x – GLfloat

• y – GLfloat

Convenience function that calls ( indx , x , y ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib2f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib2fv ( indx , values ) ¶

参数

• indx – GLuint

• values – GLfloat

Convenience function that calls ( indx , values ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib2fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib3f ( indx , x , y , z ) ¶

参数

• indx – GLuint

• x – GLfloat

• y – GLfloat

• z – GLfloat

Convenience function that calls ( indx , x , y , z ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib3f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib3fv ( indx , values ) ¶

参数

• indx – GLuint

• values – GLfloat

Convenience function that calls ( indx , values ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib3fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib4f ( indx , x , y , z , w ) ¶

参数

• indx – GLuint

• x – GLfloat

• y – GLfloat

• z – GLfloat

• w – GLfloat

Convenience function that calls ( indx , x , y , z , w ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib4f() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttrib4fv ( indx , values ) ¶

参数

• indx – GLuint

• values – GLfloat

Convenience function that calls ( indx , values ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttrib4fv() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glVertexAttribPointer ( indx , size , type , normalized , stride , ptr ) ¶

参数

• indx – GLuint

• size – GLint

• type – GLenum

• normalized – GLboolean

• stride – GLsizei

• ptr – void

Convenience function that calls ( indx , size , type , normalized , stride , ptr ).

For more information, see the OpenGL ES 2.0 documentation for glVertexAttribPointer() .

This convenience function will do nothing on OpenGL ES 1.x systems.

PySide2.QtGui.QOpenGLFunctions. glViewport ( x , y , width , height ) ¶

参数

• x – GLint

• y – GLint

• width – GLsizei

• height – GLsizei

Convenience function that calls ( x , y , width , height ).

For more information, see the OpenGL ES 2.0 documentation for glViewport() .

PySide2.QtGui.QOpenGLFunctions. hasOpenGLFeature ( feature ) ¶

参数

feature – OpenGLFeature

返回类型

bool

返回 true if feature is present on this system’s OpenGL implementation; false otherwise.

It is assumed that the QOpenGLContext associated with this function resolver is current.

另请参阅

openGLFeatures()

PySide2.QtGui.QOpenGLFunctions. initializeOpenGLFunctions ( ) ¶

Initializes OpenGL function resolution for the current context.

After calling this function, the QOpenGLFunctions object can only be used with the current context and other contexts that share with it. Call again to change the object’s context association.

PySide2.QtGui.QOpenGLFunctions. openGLFeatures ( ) ¶

返回类型

OpenGLFeatures

Returns the set of features that are present on this system’s OpenGL implementation.

It is assumed that the QOpenGLContext associated with this function resolver is current.

另请参阅

hasOpenGLFeature()