| /* 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); |
| }; |