Flutter Impeller
vertex_buffer.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef FLUTTER_IMPELLER_CORE_VERTEX_BUFFER_H_
6 #define FLUTTER_IMPELLER_CORE_VERTEX_BUFFER_H_
7 
10 
11 namespace impeller {
12 
13 constexpr size_t kMaxVertexBuffers = 16;
14 
15 struct VertexBuffer {
17 
18  //----------------------------------------------------------------------------
19  /// The index buffer binding used by the vertex shader stage.
21 
22  //----------------------------------------------------------------------------
23  /// The total count of vertices, either in the vertex_buffer if the
24  /// index_type is IndexType::kNone or in the index_buffer otherwise.
25  size_t vertex_count = 0u;
26 
27  //----------------------------------------------------------------------------
28  /// The type of indices in the index buffer. The indices must be tightly
29  /// packed in the index buffer.
30  ///
32 
33  explicit inline operator bool() const {
34  return static_cast<bool>(vertex_buffer) &&
35  (index_type == IndexType::kNone || static_cast<bool>(index_buffer));
36  }
37 };
38 
39 } // namespace impeller
40 
41 #endif // FLUTTER_IMPELLER_CORE_VERTEX_BUFFER_H_
@ kNone
Does not use the index buffer.
constexpr size_t kMaxVertexBuffers
Definition: vertex_buffer.h:13
BufferView index_buffer
The index buffer binding used by the vertex shader stage.
Definition: vertex_buffer.h:20