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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 module mojo; | 5 module mojo; |
6 | 6 |
7 import "components/gpu/public/interfaces/command_buffer.mojom"; | 7 import "components/view_manager/public/interfaces/command_buffer.mojom"; |
8 import "components/gpu/public/interfaces/viewport_parameter_listener.mojom"; | 8 import "components/view_manager/public/interfaces/viewport_parameter_listener.mo
jom"; |
9 | 9 |
10 // A ContextProvider can be used to provide new command buffers related to a | 10 // A ContextProvider can be used to provide new command buffers related to a |
11 // particular context, for instance configured to draw to a particular display. | 11 // particular context, for instance configured to draw to a particular display. |
12 interface ContextProvider { | 12 interface ContextProvider { |
13 // This initializes a new command buffer for this provider when available, | 13 // This initializes a new command buffer for this provider when available, |
14 // closing connections to the previously created command buffer (if any). | 14 // closing connections to the previously created command buffer (if any). |
15 // | 15 // |
16 // This call may not return for an extended period of time if a command | 16 // This call may not return for an extended period of time if a command |
17 // buffer cannot be produced immediately, for example if it is associated | 17 // buffer cannot be produced immediately, for example if it is associated |
18 // with a view that is offscreen. | 18 // with a view that is offscreen. |
19 // | 19 // |
20 // If a viewport_parameter_listener is provided it will notified be when | 20 // If a viewport_parameter_listener is provided it will notified be when |
21 // vsync parameters change for this context. | 21 // vsync parameters change for this context. |
22 // | 22 // |
23 // The returned handle will be null if no command buffer can be created for | 23 // The returned handle will be null if no command buffer can be created for |
24 // this request, for example if another request is made on the same provider | 24 // this request, for example if another request is made on the same provider |
25 // before a previous call returns. | 25 // before a previous call returns. |
26 Create(ViewportParameterListener? viewport_parameter_listener) | 26 Create(ViewportParameterListener? viewport_parameter_listener) |
27 => (CommandBuffer? gles2_client); | 27 => (CommandBuffer? gles2_client); |
28 }; | 28 }; |
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