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39
40#ifndef QT3DRENDER_RENDER_GLBUFFER_P_H
41#define QT3DRENDER_RENDER_GLBUFFER_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QOpenGLContext>
55#include <Qt3DCore/qnodeid.h>
56#include <qbytearray.h>
57
58QT_BEGIN_NAMESPACE
59
60namespace Qt3DRender {
61
62namespace Render {
63
64class GraphicsContext;
65
66class GLBuffer
67{
68public:
69 GLBuffer();
70
71 enum Type
72 {
73 ArrayBuffer = 0,
74 UniformBuffer,
75 IndexBuffer,
76 ShaderStorageBuffer,
77 PixelPackBuffer,
78 PixelUnpackBuffer,
79 DrawIndirectBuffer
80 };
81
82 bool bind(GraphicsContext *ctx, Type t);
83 bool release(GraphicsContext *ctx);
84 bool create(GraphicsContext *ctx);
85 void destroy(GraphicsContext *ctx);
86 void allocate(GraphicsContext *ctx, uint size, bool dynamic = true);
87 void allocate(GraphicsContext *ctx, const void *data, uint size, bool dynamic = true);
88 void update(GraphicsContext *ctx, const void *data, uint size, int offset = 0);
89 QByteArray download(GraphicsContext *ctx, uint size);
90 void bindBufferBase(GraphicsContext *ctx, int bindingPoint, Type t);
91 void bindBufferBase(GraphicsContext *ctx, int bindingPoint);
92
93 inline GLuint bufferId() const { return m_bufferId; }
94 inline bool isCreated() const { return m_isCreated; }
95 inline bool isBound() const { return m_bound; }
96
97private:
98 GLuint m_bufferId;
99 bool m_isCreated;
100 bool m_bound;
101 GLenum m_lastTarget;
102};
103
104} // namespace Render
105
106} // namespace Qt3DRender
107
108QT_END_NAMESPACE
109
110#endif // QT3DRENDER_RENDER_GLBUFFER_P_H
111