GLAPI/glBindBuffersBase: Difference between revisions
Bot: Adding better formatting. |
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Revision as of 01:38, 25 July 2013
Core in version | 4.6 | |
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Core since version | 4.4 | |
Core ARB extension | ARB_multi_bind |
glBindBuffersBase: bind one or more buffer objects to a sequence of indexed buffer targets
Function Definition
void glBindBufferBase(GLenum target, GLuint first, GLsizei count, const GLuint *buffers);
- target
- Specify the target of the bind operation. target must be one of GL_ATOMIC_COUNTER_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, GL_UNIFORM_BUFFER or GL_SHADER_STORAGE_BUFFER.
- index
- Specify the index of the first binding point within the array specified by target.
- count
- Specify the number of contiguous binding points to which to bind buffers.
- buffers
- A pointer to an array of names of buffer objects to bind to the targets on the specified binding point, or NULL.
Description
glBindBuffersBase binds a set of count buffer objects whose names are given in the array buffers to the count consecutive binding points starting from index index of the array of targets specified by target. If buffers is NULL then glBindBuffersBase unbinds any buffers that are currently bound to the referenced binding points.
Assuming no errors are generated, it is equivalent to the following pseudo-code (with the exceptions noted below), which calls glBindBufferBase:
for (i = 0; i < count; i++)
{
if (buffers != NULL)
{
glBindBufferBase(target, first + i, buffers[i]);
}
else
{
glBindBufferBase(target, first + i, 0);
}
}
The exceptions are that the single general buffer binding corresponding to target is unmodified, and that buffers will not be created if they do not exist.
Notes
Note that because glBindBuffersBase cannot create new buffer objects (even if a name passed has been previously generated by call to glGenBuffers), names pased to glBindBuffersBase must have been bound at least once previously via a call to glBindBuffer.
Errors
GL_INVALID_ENUM is generated if target is not GL_ATOMIC_COUNTER_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, GL_UNIFORM_BUFFER or GL_SHADER_STORAGE_BUFFER.
GL_INVALID_OPERATION is generated if first + count is greater than the number of target-specific indexed binding points.
GL_INVALID_OPERATION is generated if any value in buffers is not zero or the name of an existing buffer object.
See Also
glGenBuffers, glDeleteBuffers, glBindBuffer, glBindBufferBase, glBindBufferRange, glBindBuffersRange
Copyright
Copyright © 2013 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/.