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 struct VertexBuffer {
15 
16  //----------------------------------------------------------------------------
17  /// The index buffer binding used by the vertex shader stage.
19 
20  //----------------------------------------------------------------------------
21  /// The total count of vertices, either in the vertex_buffer if the
22  /// index_type is IndexType::kNone or in the index_buffer otherwise.
23  size_t vertex_count = 0u;
24 
25  //----------------------------------------------------------------------------
26  /// The type of indices in the index buffer. The indices must be tightly
27  /// packed in the index buffer.
28  ///
30 
31  constexpr explicit operator bool() const {
32  return static_cast<bool>(vertex_buffer) &&
33  (index_type == IndexType::kNone || static_cast<bool>(index_buffer));
34  }
35 };
36 
37 } // namespace impeller
38 
39 #endif // FLUTTER_IMPELLER_CORE_VERTEX_BUFFER_H_
impeller::VertexBuffer::index_type
IndexType index_type
Definition: vertex_buffer.h:29
impeller::VertexBuffer
Definition: vertex_buffer.h:13
formats.h
impeller::VertexBuffer::vertex_buffer
BufferView vertex_buffer
Definition: vertex_buffer.h:14
impeller::VertexBuffer::vertex_count
size_t vertex_count
Definition: vertex_buffer.h:23
impeller::IndexType
IndexType
Definition: formats.h:344
impeller::IndexType::kNone
@ kNone
Does not use the index buffer.
impeller::VertexBuffer::index_buffer
BufferView index_buffer
The index buffer binding used by the vertex shader stage.
Definition: vertex_buffer.h:18
impeller::BufferView
Definition: buffer_view.h:15
buffer_view.h
impeller
Definition: aiks_blur_unittests.cc:20
impeller::IndexType::kUnknown
@ kUnknown