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* Change copyrights from Nokia to DigiaIikka Eklund2012-09-221-24/+24
| | | | | | | | Change copyrights and license headers from Nokia to Digia Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
* Documented QtOpenGL classes that have better replacements as obsolete.Samuel Rødal2012-09-141-0/+6
| | | | | | | These have new replacements in QtGui since Qt 5.0. Change-Id: I20e8fdd4e9c14d8c626eda3072217af1858bf492 Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* Make gui/math3d classes use float rather than qrealSean Harmer2012-09-071-67/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This corrects the mismatch between using floats for internal storage and qreal in the API of QVector*D which leads to lots of implicit casts between double and float. This change also stops users from being surprised by the loss of precision when using these classes on desktop platforms and removes the need for the private constructors taking a dummy int as the final argument. The QMatrix4x4 and QQuaternion classes have been changed to use float for their internal storage since these are meant to be used in conjunction with the QVector*D classes. This is to prevent unexpected loss of precision and to improve performance. The on-disk format has also been changed from double to float thereby reducing the storage required when streaming vectors and matrices. This is potentially a large saving when working with complex 3D meshes etc. This also has a significant performance improvement when passing matrices to QOpenGLShaderProgram (and QGLShaderProgram) as we no longer have to iterate and convert the data to floats. This is an operation that could easily be needed many times per frame. This change also opens the door for further optimisations of these classes to be implemented by using SIMD intrinsics. This needs to be applied in conjunction with https://codereview.qt-project.org/#change,33548 Task-number: QTBUG-21035 Task-number: QTBUG-20661 Change-Id: I9321b06040ffb93ae1cbd72fd2013267ac901b2e Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* OpenGL: Use official glext.h and gl2ext.h headersSean Harmer2012-08-201-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Khronos group makes the glext.h (Desktop OpenGL) and gl2ext.h (OpenGL ES2) headers officially available nowadays. Most (all?) Linux systems ship this by default. On Windows platforms the glext.h file needs to be downloaded from http://www.opengl.org/registry/api/glext.h and placed alongside the system OpenGL header. Making use of the official header reduces the maintenance overhead for OpenGL support in Qt by removing the need to copy and paste definitions into the Qt sources. As the Khronos-provided headers are standardised and backwards and forwards compatible we can utilise these for all platforms rather than just for Windows. This means that all definitions required by Qt will be present even if the system ships out-dated equivalents. Mac OS X needs special handling in that we should always use the system-provided headers there. This is because Apple controls the OpenGL driver and the headers that go along with it. As such there is no possibility that the driver exposes additional functionality compared with the system-provided OpenGL headers. Apple has also decided to make different decisions about some OpenGL typedefs compared to other implementations. For example, Apple typdefs GLhandleARB to void* whereas other platforms use unsigned int. The alternative, which is to use the system provided glext.h (or gl2ext.h) header means that Qt code would need to check for the availability of such definitions wherever it is not guaranteed to be provided by core OpenGL/ES just to compile. The proposed approach means that Qt can compile regardless of the system's OpenGL extension support. We just need to be rigourous in runtime checking of support for extensions but that is already a requirement (and is missing in a few places, see TODO's added in this commit). The official Khronos headers are added to Qt as qopenglext.h - Desktop OpenGL qopengles2ext.h - OpenGL ES2 They need to be public but not part of QtGui module include, hence the headers have been modified by adding #if 0 #pragma qt_no_master_include #endif to them. This has been tested on: Gentoo Linux with GCC 4.6.3 Windows 7 with MSVC 2010 Mac OSX 10.8 with Apple clang 4.0 (based on LLVM 3.1svn) QNX with qcc (based on GCC 4.4) A small change is needed to QtDeclarative when building for OpenGL ES 2 after applying this commit. See https://codereview.qt-project.org/#change,31794 Change-Id: I4b3d2b1680baf4c78be9a87b4d8de076d23e8f82 Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Windows: Add ANGLE support.Friedemann Kleint2012-05-311-1/+2
| | | | | | | | | | | | | | | | | | - Add QWindowsEGLContext usable for ANGLE and Windows CE. - Add QWindowsEGLStaticContext containing the display for resource cleanup. - Add EGLSurface to QWindowsWindow. - Add a -angle option specifying the path to the external ANGLE installation to configure, add libraries to the mkspecs. Initial-patch-by: Jabot Corentin <corentinjabot@gmail.com> Task-number: QTBUG-24207 Change-Id: I5f80b1efb6996da7c5d70aa3720f7801c9e4c6af Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com> Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
* Doc: Modularize QtOpenGL documentation.Casper van Donderen2012-05-091-3/+3
| | | | | | | This change moves the snippets to the modularized directories. Change-Id: Ifcf22fa3f234681f851d1e7eed5fe44e2e223ffd Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
* Remove "All rights reserved" line from license headers.Jason McDonald2012-01-301-1/+1
| | | | | | | | | | As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update contact information in license headers.Jason McDonald2012-01-231-1/+1
| | | | | | | Replace Nokia contact email address with Qt Project website. Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update copyright year in license headers.Jason McDonald2012-01-051-1/+1
| | | | | Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* opengl: Do not crash when programGuard is a nullptrHolger Hans Peter Freyther2011-12-011-1/+1
| | | | | | | | The rest of the code is checking programGuard for nullptr, do it here as well to prevent a segmentation fault. Change-Id: I38a03f74d493b8f731157be1739707b39904f7ba Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
* Copy core GL functionality to QtGui with QGL -> QOpenGL naming.Samuel Rødal2011-08-291-5/+2
| | | | | | Change-Id: Ibc989afa4a30dd184d41d1a1cd89f97196e48855 Reviewed-on: http://codereview.qt.nokia.com/3710 Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Move GL resource handling enablers to QtGui.Samuel Rødal2011-08-291-68/+74
| | | | | | | | | | | Made resource handling more robust by attempting to free GL resources in the correct thread, and not forcing a context to become current to free resources. Change-Id: Ie81d4005b608972375755571d9b50ce82080709b Reviewed-on: http://codereview.qt.nokia.com/3258 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Get rid of OpenGL 1.x engine and platform code from QtOpenGL.Samuel Rødal2011-08-161-84/+0
| | | | | | | Change-Id: I646b8e26d5e7214432a044866764d57cc11b2390 Reviewed-on: http://codereview.qt.nokia.com/3006 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>
* Update licenseheader text in source files for qtbase Qt moduleJyri Tahtela2011-05-241-17/+17
| | | | | | | Updated version of LGPL and FDL licenseheaders. Apply release phase licenseheaders for all source files. Reviewed-by: Trust Me
* Add ability to work around non-standard GLES implementationsPaul Olav Tvete2011-05-181-3/+3
| | | | Reviewed-by: Gunnar
* Initial import from the monolithic Qt.Qt by Nokia2011-04-271-0/+3354
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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