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1 // Copyright (c) 2016 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2016 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 #ifndef GPU_COMMAND_BUFFER_SERVICE_INDEXED_BUFFER_BINDING_HOST_H_ | 5 #ifndef GPU_COMMAND_BUFFER_SERVICE_INDEXED_BUFFER_BINDING_HOST_H_ |
6 #define GPU_COMMAND_BUFFER_SERVICE_INDEXED_BUFFER_BINDING_HOST_H_ | 6 #define GPU_COMMAND_BUFFER_SERVICE_INDEXED_BUFFER_BINDING_HOST_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
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48 // For glBindBufferBase, return the actual buffer size when this function is | 48 // For glBindBufferBase, return the actual buffer size when this function is |
49 // called, not when glBindBufferBase is called. | 49 // called, not when glBindBufferBase is called. |
50 // For glBindBufferRange, return the |size| set by glBindBufferRange minus | 50 // For glBindBufferRange, return the |size| set by glBindBufferRange minus |
51 // the range that's beyond the buffer. | 51 // the range that's beyond the buffer. |
52 GLsizeiptr GetEffectiveBufferSize(GLuint index) const; | 52 GLsizeiptr GetEffectiveBufferSize(GLuint index) const; |
53 GLintptr GetBufferStart(GLuint index) const; | 53 GLintptr GetBufferStart(GLuint index) const; |
54 | 54 |
55 // This is used only for UNIFORM_BUFFER bindings in context switching. | 55 // This is used only for UNIFORM_BUFFER bindings in context switching. |
56 void RestoreBindings(IndexedBufferBindingHost* prev); | 56 void RestoreBindings(IndexedBufferBindingHost* prev); |
57 | 57 |
| 58 // Check if |buffer| is currently bound to one of the indexed binding point |
| 59 // from 0 to |used_binding_count| - 1. |
| 60 bool UsesBuffer(size_t used_binding_count, const Buffer* buffer) const; |
| 61 |
58 protected: | 62 protected: |
59 friend class base::RefCounted<IndexedBufferBindingHost>; | 63 friend class base::RefCounted<IndexedBufferBindingHost>; |
60 | 64 |
61 virtual ~IndexedBufferBindingHost(); | 65 virtual ~IndexedBufferBindingHost(); |
62 | 66 |
63 private: | 67 private: |
64 enum IndexedBufferBindingType { | 68 enum IndexedBufferBindingType { |
65 kBindBufferBase, | 69 kBindBufferBase, |
66 kBindBufferRange, | 70 kBindBufferRange, |
67 kBindBufferNone | 71 kBindBufferNone |
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102 bool needs_emulation_; | 106 bool needs_emulation_; |
103 | 107 |
104 // This is used for optimization purpose in context switching. | 108 // This is used for optimization purpose in context switching. |
105 size_t max_non_null_binding_index_plus_one_; | 109 size_t max_non_null_binding_index_plus_one_; |
106 }; | 110 }; |
107 | 111 |
108 } // namespace gles2 | 112 } // namespace gles2 |
109 } // namespace gpu | 113 } // namespace gpu |
110 | 114 |
111 #endif // GPU_COMMAND_BUFFER_SERVICE_INDEXED_BUFFER_BINDING_HOST_H_ | 115 #endif // GPU_COMMAND_BUFFER_SERVICE_INDEXED_BUFFER_BINDING_HOST_H_ |
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