QOpenGLFunctions Class

The QOpenGLFunctions class provides cross-platform access to the OpenGL ES 2.0 API. More...

Header: #include <QOpenGLFunctions>
qmake: QT += gui
Since: Qt 5.0
Inherited By:

Public Types

enum OpenGLFeature { Multitexture, Shaders, Buffers, Framebuffers, ..., FixedFunctionPipeline }
flags OpenGLFeatures

Public Functions

QOpenGLFunctions()
QOpenGLFunctions(QOpenGLContext * context)
~QOpenGLFunctions()
void glActiveTexture(GLenum texture)
void glAttachShader(GLuint program, GLuint shader)
void glBindAttribLocation(GLuint program, GLuint index, const char * name)
void glBindBuffer(GLenum target, GLuint buffer)
void glBindFramebuffer(GLenum target, GLuint framebuffer)
void glBindRenderbuffer(GLenum target, GLuint renderbuffer)
void glBindTexture(GLenum target, GLuint texture)
void glBlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
void glBlendEquation(GLenum mode)
void glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha)
void glBlendFunc(GLenum sfactor, GLenum dfactor)
void glBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)
void glBufferData(GLenum target, qopengl_GLsizeiptr size, const void * data, GLenum usage)
void glBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, const void * data)
GLenum glCheckFramebufferStatus(GLenum target)
void glClear(GLbitfield mask)
void glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
void glClearDepthf(GLclampf depth)
void glClearStencil(GLint s)
void glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)
void glCompileShader(GLuint shader)
void glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void * data)
void glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void * data)
void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)
void glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height)
GLuint glCreateProgram()
GLuint glCreateShader(GLenum type)
void glCullFace(GLenum mode)
void glDeleteBuffers(GLsizei n, const GLuint * buffers)
void glDeleteFramebuffers(GLsizei n, const GLuint * framebuffers)
void glDeleteProgram(GLuint program)
void glDeleteRenderbuffers(GLsizei n, const GLuint * renderbuffers)
void glDeleteShader(GLuint shader)
void glDeleteTextures(GLsizei n, const GLuint * textures)
void glDepthFunc(GLenum func)
void glDepthMask(GLboolean flag)
void glDepthRangef(GLclampf zNear, GLclampf zFar)
void glDetachShader(GLuint program, GLuint shader)
void glDisable(GLenum cap)
void glDisableVertexAttribArray(GLuint index)
void glDrawArrays(GLenum mode, GLint first, GLsizei count)
void glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid * indices)
void glEnable(GLenum cap)
void glEnableVertexAttribArray(GLuint index)
void glFinish()
void glFlush()
void glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)
void glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
void glFrontFace(GLenum mode)
void glGenBuffers(GLsizei n, GLuint * buffers)
void glGenFramebuffers(GLsizei n, GLuint * framebuffers)
void glGenRenderbuffers(GLsizei n, GLuint * renderbuffers)
void glGenTextures(GLsizei n, GLuint * textures)
void glGenerateMipmap(GLenum target)
void glGetActiveAttrib(GLuint program, GLuint index, GLsizei bufsize, GLsizei * length, GLint * size, GLenum * type, char * name)
void glGetActiveUniform(GLuint program, GLuint index, GLsizei bufsize, GLsizei * length, GLint * size, GLenum * type, char * name)
void glGetAttachedShaders(GLuint program, GLsizei maxcount, GLsizei * count, GLuint * shaders)
GLint glGetAttribLocation(GLuint program, const char * name)
void glGetBooleanv(GLenum pname, GLboolean * params)
void glGetBufferParameteriv(GLenum target, GLenum pname, GLint * params)
GLenum glGetError()
void glGetFloatv(GLenum pname, GLfloat * params)
void glGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint * params)
void glGetIntegerv(GLenum pname, GLint * params)
void glGetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei * length, char * infolog)
void glGetProgramiv(GLuint program, GLenum pname, GLint * params)
void glGetRenderbufferParameteriv(GLenum target, GLenum pname, GLint * params)
void glGetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei * length, char * infolog)
void glGetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint * range, GLint * precision)
void glGetShaderSource(GLuint shader, GLsizei bufsize, GLsizei * length, char * source)
void glGetShaderiv(GLuint shader, GLenum pname, GLint * params)
const GLubyte * glGetString(GLenum name)
void glGetTexParameterfv(GLenum target, GLenum pname, GLfloat * params)
void glGetTexParameteriv(GLenum target, GLenum pname, GLint * params)
GLint glGetUniformLocation(GLuint program, const char * name)
void glGetUniformfv(GLuint program, GLint location, GLfloat * params)
void glGetUniformiv(GLuint program, GLint location, GLint * params)
void glGetVertexAttribPointerv(GLuint index, GLenum pname, void ** pointer)
void glGetVertexAttribfv(GLuint index, GLenum pname, GLfloat * params)
void glGetVertexAttribiv(GLuint index, GLenum pname, GLint * params)
void glHint(GLenum target, GLenum mode)
GLboolean glIsBuffer(GLuint buffer)
GLboolean glIsEnabled(GLenum cap)
GLboolean glIsFramebuffer(GLuint framebuffer)
GLboolean glIsProgram(GLuint program)
GLboolean glIsRenderbuffer(GLuint renderbuffer)
GLboolean glIsShader(GLuint shader)
GLboolean glIsTexture(GLuint texture)
void glLineWidth(GLfloat width)
void glLinkProgram(GLuint program)
void glPixelStorei(GLenum pname, GLint param)
void glPolygonOffset(GLfloat factor, GLfloat units)
void glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid * pixels)
void glReleaseShaderCompiler()
void glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)
void glSampleCoverage(GLclampf value, GLboolean invert)
void glScissor(GLint x, GLint y, GLsizei width, GLsizei height)
void glShaderBinary(GLint n, const GLuint * shaders, GLenum binaryformat, const void * binary, GLint length)
void glShaderSource(GLuint shader, GLsizei count, const char ** string, const GLint * length)
void glStencilFunc(GLenum func, GLint ref, GLuint mask)
void glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
void glStencilMask(GLuint mask)
void glStencilMaskSeparate(GLenum face, GLuint mask)
void glStencilOp(GLenum fail, GLenum zfail, GLenum zpass)
void glStencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
void glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid * pixels)
void glTexParameterf(GLenum target, GLenum pname, GLfloat param)
void glTexParameterfv(GLenum target, GLenum pname, const GLfloat * params)
void glTexParameteri(GLenum target, GLenum pname, GLint param)
void glTexParameteriv(GLenum target, GLenum pname, const GLint * params)
void glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid * pixels)
void glUniform1f(GLint location, GLfloat x)
void glUniform1fv(GLint location, GLsizei count, const GLfloat * v)
void glUniform1i(GLint location, GLint x)
void glUniform1iv(GLint location, GLsizei count, const GLint * v)
void glUniform2f(GLint location, GLfloat x, GLfloat y)
void glUniform2fv(GLint location, GLsizei count, const GLfloat * v)
void glUniform2i(GLint location, GLint x, GLint y)
void glUniform2iv(GLint location, GLsizei count, const GLint * v)
void glUniform3f(GLint location, GLfloat x, GLfloat y, GLfloat z)
void glUniform3fv(GLint location, GLsizei count, const GLfloat * v)
void glUniform3i(GLint location, GLint x, GLint y, GLint z)
void glUniform3iv(GLint location, GLsizei count, const GLint * v)
void glUniform4f(GLint location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
void glUniform4fv(GLint location, GLsizei count, const GLfloat * v)
void glUniform4i(GLint location, GLint x, GLint y, GLint z, GLint w)
void glUniform4iv(GLint location, GLsizei count, const GLint * v)
void glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value)
void glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value)
void glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value)
void glUseProgram(GLuint program)
void glValidateProgram(GLuint program)
void glVertexAttrib1f(GLuint indx, GLfloat x)
void glVertexAttrib1fv(GLuint indx, const GLfloat * values)
void glVertexAttrib2f(GLuint indx, GLfloat x, GLfloat y)
void glVertexAttrib2fv(GLuint indx, const GLfloat * values)
void glVertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z)
void glVertexAttrib3fv(GLuint indx, const GLfloat * values)
void glVertexAttrib4f(GLuint indx, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
void glVertexAttrib4fv(GLuint indx, const GLfloat * values)
void glVertexAttribPointer(GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void * ptr)
void glViewport(GLint x, GLint y, GLsizei width, GLsizei height)
bool hasOpenGLFeature(QOpenGLFunctions::OpenGLFeature feature) const
void initializeOpenGLFunctions()
QOpenGLFunctions::OpenGLFeatures openGLFeatures() const

Detailed Description

The QOpenGLFunctions class provides cross-platform access to the OpenGL ES 2.0 API.

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();
}

The 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.

The 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);

Member Type Documentation

enum QOpenGLFunctions::​OpenGLFeature
flags QOpenGLFunctions::​OpenGLFeatures

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

ConstantValueDescription
QOpenGLFunctions::Multitexture0x0001glActiveTexture() function is available.
QOpenGLFunctions::Shaders0x0002Shader functions are available.
QOpenGLFunctions::Buffers0x0004Vertex and index buffer functions are available.
QOpenGLFunctions::Framebuffers0x0008Framebuffer object functions are available.
QOpenGLFunctions::BlendColor0x0010glBlendColor() is available.
QOpenGLFunctions::BlendEquation0x0020glBlendEquation() is available.
QOpenGLFunctions::BlendEquationSeparate0x0040glBlendEquationSeparate() is available.
QOpenGLFunctions::BlendFuncSeparate0x0080glBlendFuncSeparate() is available.
QOpenGLFunctions::BlendSubtract0x0100Blend subtract mode is available.
QOpenGLFunctions::CompressedTextures0x0200Compressed texture functions are available.
QOpenGLFunctions::Multisample0x0400glSampleCoverage() function is available.
QOpenGLFunctions::StencilSeparate0x0800Separate stencil functions are available.
QOpenGLFunctions::NPOTTextures0x1000Non power of two textures are available.
QOpenGLFunctions::NPOTTextureRepeat0x2000Non power of two textures can use GL_REPEAT as wrap parameter.
QOpenGLFunctions::FixedFunctionPipeline0x4000The fixed function pipeline is available.

The OpenGLFeatures type is a typedef for QFlags<OpenGLFeature>. It stores an OR combination of OpenGLFeature values.

Member Function Documentation

QOpenGLFunctions::​QOpenGLFunctions()

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

See also initializeOpenGLFunctions().

QOpenGLFunctions::​QOpenGLFunctions(QOpenGLContext * context)

Constructs a function resolver for context. If context is null, 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.

See also initializeOpenGLFunctions().

QOpenGLFunctions::​~QOpenGLFunctions()

Destroys this function resolver.

void QOpenGLFunctions::​glActiveTexture(GLenum texture)

Convenience function that calls glActiveTexture(texture).

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

void QOpenGLFunctions::​glAttachShader(GLuint program, GLuint shader)

Convenience function that calls glAttachShader(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.

void QOpenGLFunctions::​glBindAttribLocation(GLuint program, GLuint index, const char * name)

Convenience function that calls glBindAttribLocation(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.

void QOpenGLFunctions::​glBindBuffer(GLenum target, GLuint buffer)

Convenience function that calls glBindBuffer(target, buffer).

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

void QOpenGLFunctions::​glBindFramebuffer(GLenum target, GLuint framebuffer)

Convenience function that calls glBindFramebuffer(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().

void QOpenGLFunctions::​glBindRenderbuffer(GLenum target, GLuint renderbuffer)

Convenience function that calls glBindRenderbuffer(target, renderbuffer).

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

void QOpenGLFunctions::​glBindTexture(GLenum target, GLuint texture)

Convenience function that calls glBindTexture(target, texture).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glBlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)

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

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

void QOpenGLFunctions::​glBlendEquation(GLenum mode)

Convenience function that calls glBlendEquation(mode).

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

void QOpenGLFunctions::​glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha)

Convenience function that calls glBlendEquationSeparate(modeRGB, modeAlpha).

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

void QOpenGLFunctions::​glBlendFunc(GLenum sfactor, GLenum dfactor)

Convenience function that calls glBlendFunc(sfactor, dfactor).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)

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

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

void QOpenGLFunctions::​glBufferData(GLenum target, qopengl_GLsizeiptr size, const void * data, GLenum usage)

Convenience function that calls glBufferData(target, size, data, usage).

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

void QOpenGLFunctions::​glBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, const void * data)

Convenience function that calls glBufferSubData(target, offset, size, data).

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

GLenum QOpenGLFunctions::​glCheckFramebufferStatus(GLenum target)

Convenience function that calls glCheckFramebufferStatus(target).

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

void QOpenGLFunctions::​glClear(GLbitfield mask)

Convenience function that calls glClear(mask).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glClearDepthf(GLclampf depth)

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

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

void QOpenGLFunctions::​glClearStencil(GLint s)

Convenience function that calls glClearStencil(s).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glCompileShader(GLuint shader)

Convenience function that calls glCompileShader(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.

void QOpenGLFunctions::​glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void * data)

Convenience function that calls glCompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, data).

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

void QOpenGLFunctions::​glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void * data)

Convenience function that calls glCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data).

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

void QOpenGLFunctions::​glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)

Convenience function that calls glCopyTexImage2D(target, level, internalformat, x, y, width, height, border).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height)

Convenience function that calls glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height).

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

This function was introduced in Qt 5.3.

GLuint QOpenGLFunctions::​glCreateProgram()

Convenience function that calls glCreateProgram().

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

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

GLuint QOpenGLFunctions::​glCreateShader(GLenum type)

Convenience function that calls glCreateShader(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.

void QOpenGLFunctions::​glCullFace(GLenum mode)

Convenience function that calls glCullFace(mode).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glDeleteBuffers(GLsizei n, const GLuint * buffers)

Convenience function that calls glDeleteBuffers(n, buffers).

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

void QOpenGLFunctions::​glDeleteFramebuffers(GLsizei n, const GLuint * framebuffers)

Convenience function that calls glDeleteFramebuffers(n, framebuffers).

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

void QOpenGLFunctions::​glDeleteProgram(GLuint program)

Convenience function that calls glDeleteProgram(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.

void QOpenGLFunctions::​glDeleteRenderbuffers(GLsizei n, const GLuint * renderbuffers)

Convenience function that calls glDeleteRenderbuffers(n, renderbuffers).

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

void QOpenGLFunctions::​glDeleteShader(GLuint shader)

Convenience function that calls glDeleteShader(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.

void QOpenGLFunctions::​glDeleteTextures(GLsizei n, const GLuint * textures)

Convenience function that calls glDeleteTextures(n, textures).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glDepthFunc(GLenum func)

Convenience function that calls glDepthFunc(func).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glDepthMask(GLboolean flag)

Convenience function that calls glDepthMask(flag).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glDepthRangef(GLclampf zNear, GLclampf zFar)

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

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

void QOpenGLFunctions::​glDetachShader(GLuint program, GLuint shader)

Convenience function that calls glDetachShader(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.

void QOpenGLFunctions::​glDisable(GLenum cap)

Convenience function that calls glDisable(cap).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glDisableVertexAttribArray(GLuint index)

Convenience function that calls glDisableVertexAttribArray(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.

void QOpenGLFunctions::​glDrawArrays(GLenum mode, GLint first, GLsizei count)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid * indices)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glEnable(GLenum cap)

Convenience function that calls glEnable(cap).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glEnableVertexAttribArray(GLuint index)

Convenience function that calls glEnableVertexAttribArray(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.

void QOpenGLFunctions::​glFinish()

Convenience function that calls glFinish().

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glFlush()

Convenience function that calls glFlush().

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)

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

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

void QOpenGLFunctions::​glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)

Convenience function that calls glFramebufferTexture2D(target, attachment, textarget, texture, level).

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

void QOpenGLFunctions::​glFrontFace(GLenum mode)

Convenience function that calls glFrontFace(mode).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGenBuffers(GLsizei n, GLuint * buffers)

Convenience function that calls glGenBuffers(n, buffers).

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

void QOpenGLFunctions::​glGenFramebuffers(GLsizei n, GLuint * framebuffers)

Convenience function that calls glGenFramebuffers(n, framebuffers).

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

void QOpenGLFunctions::​glGenRenderbuffers(GLsizei n, GLuint * renderbuffers)

Convenience function that calls glGenRenderbuffers(n, renderbuffers).

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

void QOpenGLFunctions::​glGenTextures(GLsizei n, GLuint * textures)

Convenience function that calls glGenTextures(n, textures).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGenerateMipmap(GLenum target)

Convenience function that calls glGenerateMipmap(target).

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

void QOpenGLFunctions::​glGetActiveAttrib(GLuint program, GLuint index, GLsizei bufsize, GLsizei * length, GLint * size, GLenum * type, char * name)

Convenience function that calls glGetActiveAttrib(program, index, bufsize, length, size, type, name).

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

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

void QOpenGLFunctions::​glGetActiveUniform(GLuint program, GLuint index, GLsizei bufsize, GLsizei * length, GLint * size, GLenum * type, char * name)

Convenience function that calls glGetActiveUniform(program, index, bufsize, length, size, type, name).

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

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

void QOpenGLFunctions::​glGetAttachedShaders(GLuint program, GLsizei maxcount, GLsizei * count, GLuint * shaders)

Convenience function that calls glGetAttachedShaders(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.

GLint QOpenGLFunctions::​glGetAttribLocation(GLuint program, const char * name)

Convenience function that calls glGetAttribLocation(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.

void QOpenGLFunctions::​glGetBooleanv(GLenum pname, GLboolean * params)

Convenience function that calls glGetBooleanv(pname, params).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGetBufferParameteriv(GLenum target, GLenum pname, GLint * params)

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

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

GLenum QOpenGLFunctions::​glGetError()

Convenience function that calls glGetError().

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGetFloatv(GLenum pname, GLfloat * params)

Convenience function that calls glGetFloatv(pname, params).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint * params)

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

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

void QOpenGLFunctions::​glGetIntegerv(GLenum pname, GLint * params)

Convenience function that calls glGetIntegerv(pname, params).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei * length, char * infolog)

Convenience function that calls glGetProgramInfoLog(program, bufsize, length, infolog).

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

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

void QOpenGLFunctions::​glGetProgramiv(GLuint program, GLenum pname, GLint * params)

Convenience function that calls glGetProgramiv(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.

void QOpenGLFunctions::​glGetRenderbufferParameteriv(GLenum target, GLenum pname, GLint * params)

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

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

void QOpenGLFunctions::​glGetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei * length, char * infolog)

Convenience function that calls glGetShaderInfoLog(shader, bufsize, length, infolog).

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

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

void QOpenGLFunctions::​glGetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint * range, GLint * precision)

Convenience function that calls glGetShaderPrecisionFormat(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.

void QOpenGLFunctions::​glGetShaderSource(GLuint shader, GLsizei bufsize, GLsizei * length, char * source)

Convenience function that calls glGetShaderSource(shader, bufsize, length, source).

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

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

void QOpenGLFunctions::​glGetShaderiv(GLuint shader, GLenum pname, GLint * params)

Convenience function that calls glGetShaderiv(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.

const GLubyte * QOpenGLFunctions::​glGetString(GLenum name)

Convenience function that calls glGetString(name).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGetTexParameterfv(GLenum target, GLenum pname, GLfloat * params)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glGetTexParameteriv(GLenum target, GLenum pname, GLint * params)

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

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

This function was introduced in Qt 5.3.

GLint QOpenGLFunctions::​glGetUniformLocation(GLuint program, const char * name)

Convenience function that calls glGetUniformLocation(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.

void QOpenGLFunctions::​glGetUniformfv(GLuint program, GLint location, GLfloat * params)

Convenience function that calls glGetUniformfv(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.

void QOpenGLFunctions::​glGetUniformiv(GLuint program, GLint location, GLint * params)

Convenience function that calls glGetUniformiv(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.

void QOpenGLFunctions::​glGetVertexAttribPointerv(GLuint index, GLenum pname, void ** pointer)

Convenience function that calls glGetVertexAttribPointerv(index, pname, pointer).

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

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

void QOpenGLFunctions::​glGetVertexAttribfv(GLuint index, GLenum pname, GLfloat * params)

Convenience function that calls glGetVertexAttribfv(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.

void QOpenGLFunctions::​glGetVertexAttribiv(GLuint index, GLenum pname, GLint * params)

Convenience function that calls glGetVertexAttribiv(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.

void QOpenGLFunctions::​glHint(GLenum target, GLenum mode)

Convenience function that calls glHint(target, mode).

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

This function was introduced in Qt 5.3.

GLboolean QOpenGLFunctions::​glIsBuffer(GLuint buffer)

Convenience function that calls glIsBuffer(buffer).

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

GLboolean QOpenGLFunctions::​glIsEnabled(GLenum cap)

Convenience function that calls glIsEnabled(cap).

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

This function was introduced in Qt 5.3.

GLboolean QOpenGLFunctions::​glIsFramebuffer(GLuint framebuffer)

Convenience function that calls glIsFramebuffer(framebuffer).

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

GLboolean QOpenGLFunctions::​glIsProgram(GLuint program)

Convenience function that calls glIsProgram(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.

GLboolean QOpenGLFunctions::​glIsRenderbuffer(GLuint renderbuffer)

Convenience function that calls glIsRenderbuffer(renderbuffer).

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

GLboolean QOpenGLFunctions::​glIsShader(GLuint shader)

Convenience function that calls glIsShader(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.

GLboolean QOpenGLFunctions::​glIsTexture(GLuint texture)

Convenience function that calls glIsTexture(texture).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glLineWidth(GLfloat width)

Convenience function that calls glLineWidth(width).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glLinkProgram(GLuint program)

Convenience function that calls glLinkProgram(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.

void QOpenGLFunctions::​glPixelStorei(GLenum pname, GLint param)

Convenience function that calls glPixelStorei(pname, param).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glPolygonOffset(GLfloat factor, GLfloat units)

Convenience function that calls glPolygonOffset(factor, units).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid * pixels)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glReleaseShaderCompiler()

Convenience function that calls glReleaseShaderCompiler().

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

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

void QOpenGLFunctions::​glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)

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

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

void QOpenGLFunctions::​glSampleCoverage(GLclampf value, GLboolean invert)

Convenience function that calls glSampleCoverage(value, invert).

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

void QOpenGLFunctions::​glScissor(GLint x, GLint y, GLsizei width, GLsizei height)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glShaderBinary(GLint n, const GLuint * shaders, GLenum binaryformat, const void * binary, GLint length)

Convenience function that calls glShaderBinary(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.

void QOpenGLFunctions::​glShaderSource(GLuint shader, GLsizei count, const char ** string, const GLint * length)

Convenience function that calls glShaderSource(shader, count, string, length).

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

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

void QOpenGLFunctions::​glStencilFunc(GLenum func, GLint ref, GLuint mask)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)

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

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

void QOpenGLFunctions::​glStencilMask(GLuint mask)

Convenience function that calls glStencilMask(mask).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glStencilMaskSeparate(GLenum face, GLuint mask)

Convenience function that calls glStencilMaskSeparate(face, mask).

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

void QOpenGLFunctions::​glStencilOp(GLenum fail, GLenum zfail, GLenum zpass)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glStencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)

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

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

void QOpenGLFunctions::​glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid * pixels)

Convenience function that calls glTexImage2D(target, level, internalformat, width, height, border, format, type, pixels).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glTexParameterf(GLenum target, GLenum pname, GLfloat param)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glTexParameterfv(GLenum target, GLenum pname, const GLfloat * params)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glTexParameteri(GLenum target, GLenum pname, GLint param)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glTexParameteriv(GLenum target, GLenum pname, const GLint * params)

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

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid * pixels)

Convenience function that calls glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels).

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

This function was introduced in Qt 5.3.

void QOpenGLFunctions::​glUniform1f(GLint location, GLfloat x)

Convenience function that calls glUniform1f(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.

void QOpenGLFunctions::​glUniform1fv(GLint location, GLsizei count, const GLfloat * v)

Convenience function that calls glUniform1fv(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.

void QOpenGLFunctions::​glUniform1i(GLint location, GLint x)

Convenience function that calls glUniform1i(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.

void QOpenGLFunctions::​glUniform1iv(GLint location, GLsizei count, const GLint * v)

Convenience function that calls glUniform1iv(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.

void QOpenGLFunctions::​glUniform2f(GLint location, GLfloat x, GLfloat y)

Convenience function that calls glUniform2f(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.

void QOpenGLFunctions::​glUniform2fv(GLint location, GLsizei count, const GLfloat * v)

Convenience function that calls glUniform2fv(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.

void QOpenGLFunctions::​glUniform2i(GLint location, GLint x, GLint y)

Convenience function that calls glUniform2i(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.

void QOpenGLFunctions::​glUniform2iv(GLint location, GLsizei count, const GLint * v)

Convenience function that calls glUniform2iv(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.

void QOpenGLFunctions::​glUniform3f(GLint location, GLfloat x, GLfloat y, GLfloat z)

Convenience function that calls glUniform3f(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.

void QOpenGLFunctions::​glUniform3fv(GLint location, GLsizei count, const GLfloat * v)

Convenience function that calls glUniform3fv(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.

void QOpenGLFunctions::​glUniform3i(GLint location, GLint x, GLint y, GLint z)

Convenience function that calls glUniform3i(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.

void QOpenGLFunctions::​glUniform3iv(GLint location, GLsizei count, const GLint * v)

Convenience function that calls glUniform3iv(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.

void QOpenGLFunctions::​glUniform4f(GLint location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)

Convenience function that calls glUniform4f(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.

void QOpenGLFunctions::​glUniform4fv(GLint location, GLsizei count, const GLfloat * v)

Convenience function that calls glUniform4fv(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.

void QOpenGLFunctions::​glUniform4i(GLint location, GLint x, GLint y, GLint z, GLint w)

Convenience function that calls glUniform4i(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.

void QOpenGLFunctions::​glUniform4iv(GLint location, GLsizei count, const GLint * v)

Convenience function that calls glUniform4iv(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.

void QOpenGLFunctions::​glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value)

Convenience function that calls glUniformMatrix2fv(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.

void QOpenGLFunctions::​glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value)

Convenience function that calls glUniformMatrix3fv(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.

void QOpenGLFunctions::​glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value)

Convenience function that calls glUniformMatrix4fv(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.

void QOpenGLFunctions::​glUseProgram(GLuint program)

Convenience function that calls glUseProgram(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.

void QOpenGLFunctions::​glValidateProgram(GLuint program)

Convenience function that calls glValidateProgram(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.

void QOpenGLFunctions::​glVertexAttrib1f(GLuint indx, GLfloat x)

Convenience function that calls glVertexAttrib1f(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.

void QOpenGLFunctions::​glVertexAttrib1fv(GLuint indx, const GLfloat * values)

Convenience function that calls glVertexAttrib1fv(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.

void QOpenGLFunctions::​glVertexAttrib2f(GLuint indx, GLfloat x, GLfloat y)

Convenience function that calls glVertexAttrib2f(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.

void QOpenGLFunctions::​glVertexAttrib2fv(GLuint indx, const GLfloat * values)

Convenience function that calls glVertexAttrib2fv(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.

void QOpenGLFunctions::​glVertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z)

Convenience function that calls glVertexAttrib3f(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.

void QOpenGLFunctions::​glVertexAttrib3fv(GLuint indx, const GLfloat * values)

Convenience function that calls glVertexAttrib3fv(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.

void QOpenGLFunctions::​glVertexAttrib4f(GLuint indx, GLfloat x, GLfloat y, GLfloat z, GLfloat w)

Convenience function that calls glVertexAttrib4f(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.

void QOpenGLFunctions::​glVertexAttrib4fv(GLuint indx, const GLfloat * values)

Convenience function that calls glVertexAttrib4fv(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.

void QOpenGLFunctions::​glVertexAttribPointer(GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void * ptr)

Convenience function that calls glVertexAttribPointer(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.

void QOpenGLFunctions::​glViewport(GLint x, GLint y, GLsizei width, GLsizei height)

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

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

This function was introduced in Qt 5.3.

bool QOpenGLFunctions::​hasOpenGLFeature(QOpenGLFunctions::OpenGLFeature feature) const

Returns 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.

See also openGLFeatures().

void 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 initializeOpenGLFunctions() again to change the object's context association.

QOpenGLFunctions::OpenGLFeatures QOpenGLFunctions::​openGLFeatures() const

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.

See also hasOpenGLFeature().

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