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40 | ****************************************************************************/ |
41 | |
42 | #ifndef QGLFRAMEBUFFEROBJECT_P_H |
43 | #define QGLFRAMEBUFFEROBJECT_P_H |
44 | |
45 | // |
46 | // W A R N I N G |
47 | // ------------- |
48 | // |
49 | // This file is not part of the Qt API. It exists for the convenience |
50 | // of the QLibrary class. This header file may change from |
51 | // version to version without notice, or even be removed. |
52 | // |
53 | // We mean it. |
54 | // |
55 | |
56 | QT_BEGIN_NAMESPACE |
57 | |
58 | QT_BEGIN_INCLUDE_NAMESPACE |
59 | |
60 | #include <qglframebufferobject.h> |
61 | #include <private/qglpaintdevice_p.h> |
62 | #include <private/qgl_p.h> |
63 | |
64 | QT_END_INCLUDE_NAMESPACE |
65 | |
66 | #ifndef QT_OPENGL_ES |
67 | #define DEFAULT_FORMAT GL_RGBA8 |
68 | #else |
69 | #define DEFAULT_FORMAT GL_RGBA |
70 | #endif |
71 | |
72 | class QGLFramebufferObjectFormatPrivate |
73 | { |
74 | public: |
75 | QGLFramebufferObjectFormatPrivate() |
76 | : ref(1), |
77 | samples(0), |
78 | attachment(QGLFramebufferObject::NoAttachment), |
79 | target(GL_TEXTURE_2D), |
80 | internal_format(DEFAULT_FORMAT), |
81 | mipmap(false) |
82 | { |
83 | } |
84 | QGLFramebufferObjectFormatPrivate |
85 | (const QGLFramebufferObjectFormatPrivate *other) |
86 | : ref(1), |
87 | samples(other->samples), |
88 | attachment(other->attachment), |
89 | target(other->target), |
90 | internal_format(other->internal_format), |
91 | mipmap(other->mipmap) |
92 | { |
93 | } |
94 | bool equals(const QGLFramebufferObjectFormatPrivate *other) |
95 | { |
96 | return samples == other->samples && |
97 | attachment == other->attachment && |
98 | target == other->target && |
99 | internal_format == other->internal_format && |
100 | mipmap == other->mipmap; |
101 | } |
102 | |
103 | QAtomicInt ref; |
104 | int samples; |
105 | QGLFramebufferObject::Attachment attachment; |
106 | GLenum target; |
107 | GLenum internal_format; |
108 | uint mipmap : 1; |
109 | }; |
110 | |
111 | class QGLFBOGLPaintDevice : public QGLPaintDevice |
112 | { |
113 | public: |
114 | virtual QPaintEngine* paintEngine() const {return fbo->paintEngine();} |
115 | virtual QSize size() const {return fbo->size();} |
116 | virtual QGLContext* context() const; |
117 | virtual QGLFormat format() const {return fboFormat;} |
118 | virtual bool alphaRequested() const { return reqAlpha; } |
119 | |
120 | void setFBO(QGLFramebufferObject* f, |
121 | QGLFramebufferObject::Attachment attachment); |
122 | |
123 | private: |
124 | QGLFramebufferObject* fbo; |
125 | QGLFormat fboFormat; |
126 | bool wasBound; |
127 | bool reqAlpha; |
128 | }; |
129 | |
130 | class QGLFramebufferObjectPrivate |
131 | { |
132 | public: |
133 | QGLFramebufferObjectPrivate() : fbo_guard(0), texture(0), depth_buffer(0), stencil_buffer(0) |
134 | , color_buffer(0), valid(false), engine(0) {} |
135 | ~QGLFramebufferObjectPrivate() {} |
136 | |
137 | void init(QGLFramebufferObject *q, const QSize& sz, |
138 | QGLFramebufferObject::Attachment attachment, |
139 | GLenum internal_format, GLenum texture_target, |
140 | GLint samples = 0, bool mipmap = false); |
141 | bool checkFramebufferStatus() const; |
142 | QGLSharedResourceGuard fbo_guard; |
143 | GLuint texture; |
144 | GLuint depth_buffer; |
145 | GLuint stencil_buffer; |
146 | GLuint color_buffer; |
147 | GLenum target; |
148 | QSize size; |
149 | QGLFramebufferObjectFormat format; |
150 | uint valid : 1; |
151 | QGLFramebufferObject::Attachment fbo_attachment; |
152 | mutable QPaintEngine *engine; |
153 | QGLFBOGLPaintDevice glDevice; |
154 | |
155 | inline GLuint fbo() const { return fbo_guard.id(); } |
156 | }; |
157 | |
158 | |
159 | QT_END_NAMESPACE |
160 | |
161 | #endif // QGLFRAMEBUFFEROBJECT_P_H |
162 | |