glgetpointerv(3g) [centos man page]
GLGETPOINTERV(3G) OpenGL Manual GLGETPOINTERV(3G) NAME
glGetPointerv - return the address of the specified pointer C SPECIFICATION
void glGetPointerv(GLenum pname, GLvoid ** params); PARAMETERS
pname Specifies the array or buffer pointer to be returned. Symbolic constants GL_COLOR_ARRAY_POINTER, GL_EDGE_FLAG_ARRAY_POINTER, GL_FOG_COORD_ARRAY_POINTER, GL_FEEDBACK_BUFFER_POINTER, GL_INDEX_ARRAY_POINTER, GL_NORMAL_ARRAY_POINTER, GL_SECONDARY_COLOR_ARRAY_POINTER, GL_SELECTION_BUFFER_POINTER, GL_TEXTURE_COORD_ARRAY_POINTER, or GL_VERTEX_ARRAY_POINTER are accepted. params Returns the pointer value specified by pname. DESCRIPTION
glGetPointerv returns pointer information. pname is a symbolic constant indicating the pointer to be returned, and params is a pointer to a location in which to place the returned data. For all pname arguments except GL_FEEDBACK_BUFFER_POINTER and GL_SELECTION_BUFFER_POINTER, if a non-zero named buffer object was bound to the GL_ARRAY_BUFFER target (see glBindBuffer()) when the desired pointer was previously specified, the pointer returned is a byte offset into the buffer object's data store. Buffer objects are only available in OpenGL versions 1.5 and greater. NOTES
glGetPointerv is available only if the GL version is 1.1 or greater. GL_FOG_COORD_ARRAY_POINTER and GL_SECONDARY_COLOR_ARRAY_POINTER are available only if the GL version is 1.4 or greater. The pointers are all client-side state. The initial value for each pointer is 0. For OpenGL versions 1.3 and greater, or when the ARB_multitexture extension is supported, querying the GL_TEXTURE_COORD_ARRAY_POINTER returns the value for the active client texture unit. ERRORS
GL_INVALID_ENUM is generated if pname is not an accepted value. SEE ALSO
glBindBuffer(), glClientActiveTexture(), glColorPointer(), glEdgeFlagPointer(), glFogCoordPointer(), glFeedbackBuffer(), glGetVertexAttribPointerv(), glIndexPointer(), glNormalPointer(), glSecondaryColorPointer(), glSelectBuffer(), glTexCoordPointer(), glVertexAttribPointer(), glVertexPointer() COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/. AUTHORS
opengl.org opengl.org 06/10/2014 GLGETPOINTERV(3G)
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GLTEXCOORDPOINTER(3G) OpenGL Manual GLTEXCOORDPOINTER(3G) NAME
glTexCoordPointer - define an array of texture coordinates C SPECIFICATION
void glTexCoordPointer(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer); PARAMETERS
size Specifies the number of coordinates per array element. Must be 1, 2, 3, or 4. The initial value is 4. type Specifies the data type of each texture coordinate. Symbolic constants GL_SHORT, GL_INT, GL_FLOAT, or GL_DOUBLE are accepted. The initial value is GL_FLOAT. stride Specifies the byte offset between consecutive texture coordinate sets. If stride is 0, the array elements are understood to be tightly packed. The initial value is 0. pointer Specifies a pointer to the first coordinate of the first texture coordinate set in the array. The initial value is 0. DESCRIPTION
glTexCoordPointer specifies the location and data format of an array of texture coordinates to use when rendering. size specifies the number of coordinates per texture coordinate set, and must be 1, 2, 3, or 4. type specifies the data type of each texture coordinate, and stride specifies the byte stride from one texture coordinate set to the next, allowing vertices and attributes to be packed into a single array or stored in separate arrays. (Single-array storage may be more efficient on some implementations; see glInterleavedArrays().) If a non-zero named buffer object is bound to the GL_ARRAY_BUFFER target (see glBindBuffer()) while a texture coordinate array is specified, pointer is treated as a byte offset into the buffer object's data store. Also, the buffer object binding (GL_ARRAY_BUFFER_BINDING) is saved as texture coordinate vertex array client-side state (GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING). When a texture coordinate array is specified, size, type, stride, and pointer are saved as client-side state, in addition to the current vertex array buffer object binding. To enable and disable a texture coordinate array, call glEnableClientState() and glDisableClientState() with the argument GL_TEXTURE_COORD_ARRAY. If enabled, the texture coordinate array is used when glArrayElement(), glDrawArrays(), glMultiDrawArrays(), glDrawElements(), glMultiDrawElements(), or glDrawRangeElements() is called. NOTES
glTexCoordPointer is available only if the GL version is 1.1 or greater. For OpenGL versions 1.3 and greater, or when the ARB_multitexture extension is supported, glTexCoordPointer updates the texture coordinate array state of the active client texture unit, specified with glClientActiveTexture(). Each texture coordinate array is initially disabled and isn't accessed when glArrayElement(), glDrawElements(), glDrawRangeElements(), glDrawArrays(), glMultiDrawArrays(), or glMultiDrawElements() is called. Execution of glTexCoordPointer is not allowed between the execution of glBegin() and the corresponding execution of glEnd(), but an error may or may not be generated. If no error is generated, the operation is undefined. glTexCoordPointer is typically implemented on the client side. Texture coordinate array parameters are client-side state and are therefore not saved or restored by glPushAttrib() and glPopAttrib(). Use glPushClientAttrib() and glPopClientAttrib() instead. ERRORS
GL_INVALID_VALUE is generated if size is not 1, 2, 3, or 4. GL_INVALID_ENUM is generated if type is not an accepted value. GL_INVALID_VALUE is generated if stride is negative. ASSOCIATED GETS
glIsEnabled() with argument GL_TEXTURE_COORD_ARRAY glGet() with argument GL_TEXTURE_COORD_ARRAY_SIZE glGet() with argument GL_TEXTURE_COORD_ARRAY_TYPE glGet() with argument GL_TEXTURE_COORD_ARRAY_STRIDE glGet() with argument GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING glGet() with argument GL_ARRAY_BUFFER_BINDING glGetPointerv() with argument GL_TEXTURE_COORD_ARRAY_POINTER SEE ALSO
glArrayElement(), glBindBuffer(), glClientActiveTexture(), glColorPointer(), glDisableClientState(), glDrawArrays(), glDrawElements(), glDrawRangeElements(), glEdgeFlagPointer(), glEnableClientState(), glFogCoordPointer(), glIndexPointer(), glInterleavedArrays(), glMultiDrawArrays(), glMultiDrawElements(), glMultiTexCoord(), glNormalPointer(), glPopClientAttrib(), glPushClientAttrib(), glSecondaryColorPointer(), glTexCoord(), glVertexAttribPointer(), glVertexPointer() COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/. AUTHORS
opengl.org opengl.org 06/10/2014 GLTEXCOORDPOINTER(3G)