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41
42#ifndef QGLPIXELBUFFER_P_H
43#define QGLPIXELBUFFER_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
56QT_BEGIN_NAMESPACE
57
58QT_BEGIN_INCLUDE_NAMESPACE
59#include "QtOpenGL/qglpixelbuffer.h"
60#include <private/qgl_p.h>
61#include <private/qglpaintdevice_p.h>
62
63#if defined(Q_WS_X11) && defined(QT_NO_EGL)
64#include <GL/glx.h>
65
66// The below is needed to for compilation on HPUX, due to broken GLX
67// headers. Some of the systems define GLX_VERSION_1_3 without
68// defining the GLXFBConfig structure, which is wrong.
69#if defined (Q_OS_HPUX) && defined(QT_DEFINE_GLXFBCONFIG_STRUCT)
70typedef unsigned long GLXPbuffer;
71
72struct GLXFBConfig {
73 int visualType;
74 int transparentType;
75 /* colors are floats scaled to ints */
76 int transparentRed, transparentGreen, transparentBlue, transparentAlpha;
77 int transparentIndex;
78
79 int visualCaveat;
80
81 int associatedVisualId;
82 int screen;
83
84 int drawableType;
85 int renderType;
86
87 int maxPbufferWidth, maxPbufferHeight, maxPbufferPixels;
88 int optimalPbufferWidth, optimalPbufferHeight; /* for SGIX_pbuffer */
89
90 int visualSelectGroup; /* visuals grouped by select priority */
91
92 unsigned int id;
93
94 GLboolean rgbMode;
95 GLboolean colorIndexMode;
96 GLboolean doubleBufferMode;
97 GLboolean stereoMode;
98 GLboolean haveAccumBuffer;
99 GLboolean haveDepthBuffer;
100 GLboolean haveStencilBuffer;
101
102 /* The number of bits present in various buffers */
103 GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
104 GLint depthBits;
105 GLint stencilBits;
106 GLint indexBits;
107 GLint redBits, greenBits, blueBits, alphaBits;
108 GLuint redMask, greenMask, blueMask, alphaMask;
109
110 GLuint multiSampleSize; /* Number of samples per pixel (0 if no ms) */
111
112 GLuint nMultiSampleBuffers; /* Number of available ms buffers */
113 GLint maxAuxBuffers;
114
115 /* frame buffer level */
116 GLint level;
117
118 /* color ranges (for SGI_color_range) */
119 GLboolean extendedRange;
120 GLdouble minRed, maxRed;
121 GLdouble minGreen, maxGreen;
122 GLdouble minBlue, maxBlue;
123 GLdouble minAlpha, maxAlpha;
124};
125
126#endif // Q_OS_HPUX
127
128#elif defined(Q_WS_WIN)
129DECLARE_HANDLE(HPBUFFERARB);
130#elif !defined(QT_NO_EGL)
131#include <QtGui/private/qegl_p.h>
132#endif
133QT_END_INCLUDE_NAMESPACE
134
135class QEglContext;
136
137
138class QGLPBufferGLPaintDevice : public QGLPaintDevice
139{
140public:
141 virtual QPaintEngine* paintEngine() const {return pbuf->paintEngine();}
142 virtual QSize size() const {return pbuf->size();}
143 virtual QGLContext* context() const;
144 virtual void endPaint();
145 void setPBuffer(QGLPixelBuffer* pb);
146private:
147 QGLPixelBuffer* pbuf;
148};
149
150class QGLPixelBufferPrivate {
151 Q_DECLARE_PUBLIC(QGLPixelBuffer)
152public:
153 QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(0), pbuf(0), ctx(0)
154 {
155#ifdef Q_WS_WIN
156 dc = 0;
157#elif defined(Q_WS_MACX)
158 share_ctx = 0;
159#endif
160 }
161 bool init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
162 void common_init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
163 bool cleanup();
164
165 QGLPixelBuffer *q_ptr;
166 bool invalid;
167 QGLContext *qctx;
168 QGLPBufferGLPaintDevice glDevice;
169 QGLFormat format;
170
171 QGLFormat req_format;
172 QPointer<QGLWidget> req_shareWidget;
173 QSize req_size;
174
175#if defined(Q_WS_X11) && defined(QT_NO_EGL)
176 GLXPbuffer pbuf;
177 GLXContext ctx;
178#elif defined(Q_WS_WIN)
179 HDC dc;
180 bool has_render_texture :1;
181#if !defined(QT_OPENGL_ES)
182 HPBUFFERARB pbuf;
183 HGLRC ctx;
184#endif
185#elif defined(Q_WS_MACX)
186# ifdef QT_MAC_USE_COCOA
187 void *pbuf;
188 void *ctx;
189 void *share_ctx;
190# else
191 AGLPbuffer pbuf;
192 AGLContext ctx;
193 AGLContext share_ctx;
194# endif
195#endif
196#ifndef QT_NO_EGL
197 EGLSurface pbuf;
198 QEglContext *ctx;
199 int textureFormat;
200#elif defined(Q_WS_QPA)
201 //stubs
202 void *pbuf;
203 void *ctx;
204#endif
205};
206
207QT_END_NAMESPACE
208
209#endif // QGLPIXELBUFFER_P_H
210