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/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/**
* This file defines the <code>PPB_Buffer_Dev</code> interface.
*/
label Chrome {
M14 = 0.4
};
interface PPB_Buffer_Dev {
/**
* Allocates a buffer of the given size in bytes. The return value will have
* a non-zero ID on success, or zero on failure. Failure means the module
* handle was invalid. The buffer will be initialized to contain zeroes.
*/
PP_Resource Create(
[in] PP_Instance instance,
[in] uint32_t size_in_bytes);
/**
* Returns PP_TRUE if the given resource is a Buffer. Returns PP_FALSE if the
* resource is invalid or some type other than a Buffer.
*/
PP_Bool IsBuffer(
[in] PP_Resource resource);
/**
* Gets the size of the buffer. Returns PP_TRUE on success, PP_FALSE
* if the resource is not a buffer. On failure, |*size_in_bytes| is not set.
*/
PP_Bool Describe(
[in] PP_Resource resource,
[out] uint32_t size_in_bytes);
/**
* Maps this buffer into the plugin address space and returns a pointer to
* the beginning of the data.
*/
mem_t Map(
[in] PP_Resource resource);
/**
* Unmaps this buffer.
*/
void Unmap(
[in] PP_Resource resource);
};
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