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author | Riku Palomäki <riku@palomaki.fi> | 2010-06-07 10:18:24 (GMT) |
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committer | Samuel Rødal <samuel.rodal@nokia.com> | 2010-06-07 10:32:17 (GMT) |
commit | d6c1894772ffd0c1ef2c4fd2c7469328dbbf9fc7 (patch) | |
tree | ddb5ede5a808c7ee5bdc5bc0a1323850b08c6b70 /src/opengl/qgl_x11.cpp | |
parent | f409128642c976bde0a7d4f32ed1db96a2af637b (diff) | |
download | Qt-d6c1894772ffd0c1ef2c4fd2c7469328dbbf9fc7.zip Qt-d6c1894772ffd0c1ef2c4fd2c7469328dbbf9fc7.tar.gz Qt-d6c1894772ffd0c1ef2c4fd2c7469328dbbf9fc7.tar.bz2 |
Use the new OpenGL 3.* context/profile if asked with X11/GLX.
Merge-request: 609
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
Diffstat (limited to 'src/opengl/qgl_x11.cpp')
-rw-r--r-- | src/opengl/qgl_x11.cpp | 75 |
1 files changed, 69 insertions, 6 deletions
diff --git a/src/opengl/qgl_x11.cpp b/src/opengl/qgl_x11.cpp index a6b0fae..9c1f537 100644 --- a/src/opengl/qgl_x11.cpp +++ b/src/opengl/qgl_x11.cpp @@ -115,6 +115,20 @@ extern const QX11Info *qt_x11Info(const QPaintDevice *pd); #define GLX_FRONT_LEFT_EXT 0x20DE #endif +#ifndef GLX_ARB_create_context +#define GLX_CONTEXT_DEBUG_BIT_ARB 0x00000001 +#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002 +#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091 +#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092 +#define GLX_CONTEXT_FLAGS_ARB 0x2094 +#endif + +#ifndef GLX_ARB_create_context_profile +#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001 +#define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002 +#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126 +#endif + /* The qt_gl_choose_cmap function is internal and used by QGLWidget::setContext() and GLX (not Windows). If the application can't find any sharable @@ -635,21 +649,70 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) shareContext = 0; } + const int major = d->reqFormat.majorVersion(); + const int minor = d->reqFormat.minorVersion(); + const int profile = d->reqFormat.profile() == QGLFormat::CompatibilityProfile + ? GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB + : GLX_CONTEXT_CORE_PROFILE_BIT_ARB; + d->cx = 0; - if (shareContext) { + + if ((major == 3 && minor >= 2) || major > 3) { + QGLTemporaryContext *tmpContext = 0; + if (!QGLContext::currentContext()) + tmpContext = new QGLTemporaryContext; + + int attributes[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, major, + GLX_CONTEXT_MINOR_VERSION_ARB, minor, + GLX_CONTEXT_PROFILE_MASK_ARB, profile, + 0 }; + + PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribs = + (PFNGLXCREATECONTEXTATTRIBSARBPROC) qglx_getProcAddress("glXCreateContextAttribsARB"); + + if (glXCreateContextAttribs) { + int spec[45]; + glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_BUFFER_SIZE, &res); + buildSpec(spec, format(), d->paintDevice, res, true); + + GLXFBConfig *configs; + int configCount = 0; + configs = glXChooseFBConfig(disp, xinfo->screen(), spec, &configCount); + + if (configs && configCount > 0) { + d->cx = glXCreateContextAttribs(disp, configs[0], + shareContext ? (GLXContext)shareContext->d_func()->cx : 0, direct, attributes); + if (!d->cx && shareContext) { + shareContext = 0; + d->cx = glXCreateContextAttribs(disp, configs[0], 0, direct, attributes); + } + d->screen = ((XVisualInfo*)d->vi)->screen; + } + XFree(configs); + } else { + qWarning("QGLContext::chooseContext(): OpenGL %d.%d is not supported", major, minor); + } + + if (tmpContext) + delete tmpContext; + } + if (!d->cx && shareContext) { d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, (GLXContext)shareContext->d_func()->cx, direct); d->screen = ((XVisualInfo*)d->vi)->screen; - if (d->cx) { - QGLContext *share = const_cast<QGLContext *>(shareContext); - d->sharing = true; - share->d_func()->sharing = true; - } } if (!d->cx) { d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, NULL, direct); d->screen = ((XVisualInfo*)d->vi)->screen; + shareContext = 0; + } + + if (shareContext && d->cx) { + QGLContext *share = const_cast<QGLContext *>(shareContext); + d->sharing = true; + share->d_func()->sharing = true; } + if (!d->cx) return false; d->glFormat.setDirectRendering(glXIsDirect(disp, (GLXContext)d->cx)); |