glbindbufferrange(3g) [debian man page]
GLBINDBUFFERRANGE(3G) [FIXME: manual] GLBINDBUFFERRANGE(3G) NAME
glBindBufferRange - bind a range within a buffer object to an indexed buffer target C SPECIFICATION
void glBindBufferRange(GLenumtarget, GLuintindex, GLuintbuffer, GLintptroffset, GLsizeiptrsize); PARAMETERS
target Specify the target of the bind operation. target must be one of GL_ATOMIC_COUNTER_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER or GL_UNIFORM_BUFFER. index Specify the index of the binding point within the array specified by target. buffer The name of a buffer object to bind to the specified binding point. offset The starting offset in basic machine units into the buffer object buffer. size The amount of data in machine units that can be read from the buffet object while used as an indexed target. DESCRIPTION
glBindBufferRange binds a range the buffer object buffer represented by offset and size to the binding point at index index of the array of targets specified by target. Each target represents an indexed array of buffer binding points, as well as a single general binding point that can be used by other buffer manipulation functions such as glBindBuffer() or glMapBuffer(). In addition to binding a range of buffer to the indexed buffer binding target, glBindBufferRange also binds the range to the generic buffer binding point specified by target. offset specifies the offset in basic machine units into the buffer object buffer and size specifies the amount of data that can be read from the buffer object while used as an indexed target. NOTES
The GL_ATOMIC_COUNTER_BUFER target is available only if the GL version is 4.2 or greater. ERRORS
GL_INVALID_ENUM is generated if target is not one of GL_ATOMIC_COUNTER_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER or GL_UNIFORM_BUFFER. GL_INVALID_VALUE is generated if index is greater than or equal to the number of target-specific indexed binding points. GL_INVALID_VALUE is generated if size is less than or equal to zero, or if offset + size is greater than the value of GL_BUFFER_SIZE. Additional errors may be generated if offset violates any target-specific alignmemt restrictions. SEE ALSO
glGenBuffers(), glDeleteBuffers(), glBindBuffer(), glBindBufferBase(), glMapBuffer(), glUnmapBuffer(), COPYRIGHT
Copyright (C) 2010-2011 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/. [FIXME: source] 05/30/2012 GLBINDBUFFERRANGE(3G)
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GLBINDBUFFER(3G) [FIXME: manual] GLBINDBUFFER(3G) NAME
glBindBuffer - bind a named buffer object C SPECIFICATION
void glBindBuffer(GLenum target, GLuint buffer); PARAMETERS
target Specifies the target to which the buffer object is bound. The symbolic constant must be GL_ARRAY_BUFFER, GL_ATOMIC_COUNTER_BUFFER, GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, GL_DRAW_INDIRECT_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER, GL_PIXEL_UNPACK_BUFFER, GL_TEXTURE_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, or GL_UNIFORM_BUFFER. buffer Specifies the name of a buffer object. DESCRIPTION
glBindBuffer binds a buffer object to the specified buffer binding point. Calling glBindBuffer with target set to one of the accepted symbolic constants and buffer set to the name of a buffer object binds that buffer object name to the target. If no buffer object with name buffer exists, one is created with that name. When a buffer object is bound to a target, the previous binding for that target is automatically broken. Buffer object names are unsigned integers. The value zero is reserved, but there is no default buffer object for each buffer object target. Instead, buffer set to zero effectively unbinds any buffer object previously bound, and restores client memory usage for that buffer object target (if supported for that target). Buffer object names and the corresponding buffer object contents are local to the shared object space of the current GL rendering context; two rendering contexts share buffer object names only if they explicitly enable sharing between contexts through the appropriate GL windows interfaces functions. glGenBuffers() must be used to generate a set of unused buffer object names. The state of a buffer object immediately after it is first bound is an unmapped zero-sized memory buffer with GL_READ_WRITE access and GL_STATIC_DRAW usage. While a non-zero buffer object name is bound, GL operations on the target to which it is bound affect the bound buffer object, and queries of the target to which it is bound return state from the bound buffer object. While buffer object name zero is bound, as in the initial state, attempts to modify or query state on the target to which it is bound generates an GL_INVALID_OPERATION error. When a non-zero buffer object is bound to the GL_ARRAY_BUFFER target, the vertex array pointer parameter is interpreted as an offset within the buffer object measured in basic machine units. When a non-zero buffer object is bound to the GL_DRAW_INDIRECT_BUFFER target, parameters for draws issued through glDrawArraysIndirect() and glDrawElementsIndirect() are sourced from that buffer object. While a non-zero buffer object is bound to the GL_ELEMENT_ARRAY_BUFFER target, the indices parameter of glDrawElements(), glDrawElementsInstanced(), glDrawElementsBaseVertex(), glDrawRangeElements(), glDrawRangeElementsBaseVertex(), glMultiDrawElements(), or glMultiDrawElementsBaseVertex() is interpreted as an offset within the buffer object measured in basic machine units. While a non-zero buffer object is bound to the GL_PIXEL_PACK_BUFFER target, the following commands are affected: glGetCompressedTexImage(), glGetTexImage(), and glReadPixels(). The pointer parameter is interpreted as an offset within the buffer object measured in basic machine units. While a non-zero buffer object is bound to the GL_PIXEL_UNPACK_BUFFER target, the following commands are affected: glCompressedTexImage1D(), glCompressedTexImage2D(), glCompressedTexImage3D(), glCompressedTexSubImage1D(), glCompressedTexSubImage2D(), glCompressedTexSubImage3D(), glTexImage1D(), glTexImage2D(), glTexImage3D(), glTexSubImage1D(), glTexSubImage2D(), and glTexSubImage3D(). The pointer parameter is interpreted as an offset within the buffer object measured in basic machine units. The buffer targets GL_COPY_READ_BUFFER and GL_COPY_WRITE_BUFFER are provided to allow glCopyBufferSubData() to be used without disturbing the state of other bindings. However, glCopyBufferSubData() may be used with any pair of buffer binding points. The GL_TRANSFORM_FEEDBACK_BUFFER buffer binding point may be passed to glBindBuffer, but will not directly affect transform feedback state. Instead, the indexed GL_TRANSFORM_FEEDBACK_BUFFER bindings must be used through a call to glBindBufferBase() or glBindBufferRange(). This will affect the generic GL_TRANSFORM_FEEDABCK_BUFFER binding. Likewise, the GL_UNIFORM_BUFFER and GL_ATOMIC_COUNTER_BUFFER buffer binding points may be used, but do not directly affect uniform buffer or atomic counter buffer state, respectively. glBindBufferBase() or glBindBufferRange() must be used to bind a buffer to an indexed uniform buffer or atomic counter buffer binding point. A buffer object binding created with glBindBuffer remains active until a different buffer object name is bound to the same target, or until the bound buffer object is deleted with glDeleteBuffers(). Once created, a named buffer object may be re-bound to any target as often as needed. However, the GL implementation may make choices about how to optimize the storage of a buffer object based on its initial binding target. NOTES
The GL_COPY_READ_BUFFER, GL_UNIFORM_BUFFER and GL_TEXTURE_BUFFER targets are available only if the GL version is 3.1 or greater. The GL_ATOMIC_COUNTER_BUFER target is available only if the GL version is 4.2 or greater. ERRORS
GL_INVALID_ENUM is generated if target is not one of the allowable values. GL_INVALID_VALUE is generated if buffer is not a name previously returned from a call to glGenBuffers(). ASSOCIATED GETS
glGet() with argument GL_ARRAY_BUFFER_BINDING glGet() with argument GL_ATOMIC_COUNTER_BUFFER_BINDING glGet() with argument GL_COPY_READ_BUFFER_BINDING glGet() with argument GL_COPY_WRITE_BUFFER_BINDING glGet() with argument GL_DRAW_INDIRECT_BUFFER_BINDING glGet() with argument GL_ELEMENT_ARRAY_BUFFER_BINDING glGet() with argument GL_PIXEL_PACK_BUFFER_BINDING glGet() with argument GL_PIXEL_UNPACK_BUFFER_BINDING glGet() with argument GL_TRANSFORM_FEEDBACK_BUFFER_BINDING glGet() with argument GL_UNIFORM_BUFFER_BINDING SEE ALSO
glGenBuffers(), glBindBufferBase(), glBindBufferRange(), glMapBuffer(), glUnmapBuffer(), glDeleteBuffers(), glGet(), glIsBuffer() COPYRIGHT
Copyright (C) 2005 Addison-Wesley. Copyright (C) 2010-2011 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/. [FIXME: source] 05/30/2012 GLBINDBUFFER(3G)