summaryrefslogtreecommitdiffstats
path: root/src/gui/opengl/qopenglframebufferobject.h
Commit message (Collapse)AuthorAgeFilesLines
* Dynamic GL switch on WindowsLaszlo Agocs2014-02-141-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch introduces a new build configuration on Windows which can be requested by passing -opengl dynamic to configure. Platforms other than Windows (including WinRT) are not affected. The existing Angle and desktop configurations are not affected. These continue to function as before and Angle remains the default. In the future, when all modules have added support for the dynamic path, as described below, the default configuration could be changed to be the dynamic one. This would allow providing a single set of binaries in the official builds instead of the current two. When requesting dynamic GL, Angle is built but QT_OPENGL_ES[_2] are never defined. Instead, the code path that has traditionally been desktop GL only becomes the dynamic path that has to do runtime checks. Qt modules and applications are not linked to opengl32.dll or libegl/glesv2.dll in this case. Instead, QtGui exports all necessary egl/egl/gl functions which will, under the hood, forward all requests to a dynamically loaded EGL/WGL/GL implementation. Porting guide (better said, changes needed to prepare your code to work with dynamic GL builds when the fallback to Angle is utilized): 1. In !QT_OPENGL_ES[_2] code branches use QOpenGLFunctions::isES() to differentiate between desktop and ES where needed. Keep in mind that it is the desktop GL header (plus qopenglext.h) that is included, not the GLES one. QtGui's proxy will handle some differences, for example calling glClearDepth will route to glClearDepthf when needed. The built-in eglGetProcAddress is able to retrieve pointers for standard GLES2 functions too so code resolving OpenGL 2 functions will function in any case. 2. QT_CONFIG will contain "opengl" and "dynamicgl" in dynamic builds, but never "angle" or "opengles2". 3. The preprocessor define QT_OPENGL_DYNAMIC is also available in dynamic builds. The usage of this is strongly discouraged and should not be needed anywhere except for QtGui and the platform plugin. 4. Code in need of the library handle can use QOpenGLFunctions::platformGLHandle(). The decision on which library to load is currently based on a simple test that creates a dummy window/context and tries to resolve an OpenGL 2 function. If this fails, it goes for Angle. This seems to work well on Win7 PCs for example that do not have proper graphics drivers providing OpenGL installed but are D3D9 capable using the default drivers. Setting QT_OPENGL to desktop or angle skips the test and forces usage of the given GL. There are also two new application attributes that could be used for the same purpose. If Angle is requested but the libraries are not present, desktop is tried. If desktop is requested, or if angle is requested but nothing works, the EGL/WGL functions will still be callable but will return 0. This conveniently means that eglInitialize() and such will report a failure. Debug messages can be enabled by setting QT_OPENGLPROXY_DEBUG. This will tell which implementation is chosen. The textures example application is ported to OpenGL 2, the GL 1 code path is removed. [ChangeLog][QtGui] Qt builds on Windows can now be configured for dynamic loading of the OpenGL implementation. This can be requested by passing -opengl dynamic to configure. In this mode no modules will link to opengl32.dll or Angle's libegl/libglesv2. Instead, QtGui will dynamically choose between desktop and Angle during the first GL/EGL/WGL call. This allows deploying applications with a single set of Qt libraries with the ability of transparently falling back to Angle in case the opengl32.dll is not suitable, due to missing graphics drivers for example. Task-number: QTBUG-36483 Change-Id: I716fdebbf60b355b7d9ef57d1e069eef366b4ab9 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com> Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
* Add takeTexture() to QOpenGLFramebufferObjectLaszlo Agocs2014-01-071-0/+1
| | | | | | | | | | | | | Add an API that allows to retrieve and detach the texture from the framebuffer object. The next bind() call will then create and attach a new texture. [ChangeLog][QtGui][QOpenGLFramebufferObject] Added takeTexture() for retrieving and detaching the texture from the framebuffer object. Task-number: QTBUG-35881 Change-Id: I2cca37f5872c1685b1238047f8b912e6534ab781 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Make sure that we #include qconfig.h before testing for features.Thiago Macieira2013-03-191-0/+2
| | | | | | | | | | | This is mandatory in public headers (qiodevice.h, qopengl*, etc.), but it's a good idea even in private headers, in case someone includes that header first somewhere. In particular, all platformsupport API is private. Change-Id: If287baa5d9ed14e93c1666efa0e6332c4c1cd9a4 Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
* Remove QT_{BEGIN,END}_HEADER macro usageSergio Ahumada2013-01-291-4/+0
| | | | | | | | | | | The macro was made empty in ba3dc5f3b56d1fab6fe37fe7ae08096d7dc68bcb and is no longer necessary or used. Discussed-on: http://lists.qt-project.org/pipermail/development/2013-January/009284.html Change-Id: Id2bb2e2cabde059305d4af5f12593344ba30f001 Reviewed-by: Laszlo Papp <lpapp@kde.org> Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com> Reviewed-by: hjk <hjk121@nokiamail.com>
* Update copyright year in Digia's license headersSergio Ahumada2013-01-181-1/+1
| | | | | Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* 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>
* QtGui: make some constructors explicitMarc Mutz2012-03-141-1/+1
| | | | | | | | | This is a semi-automatic search, so I'm reasonably sure that all the exported ones have been caught. Change-Id: I5b122db2498dbb2aee50c7ad95c67e708aade45b Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Added support for resetting QOpenGLFramebufferObject attachments.Samuel Rødal2012-02-151-0/+2
| | | | | | | | | | As the documentation says, this can be useful to free or recreate attachments when needed. For example, it might be useful to free stencil and depth attachments to free up resources when not rendering to the framebuffer object. Change-Id: Ib267024fdd380a788c256eb8fb86e0f8832329e0 Reviewed-by: Kim M. Kalland <kim.kalland@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>
* Remove use of QT_MODULE from libraryGunnar Sletta2012-01-251-1/+0
| | | | | | | | | | These defines were there to aid in the commercial licensing scheme we used long ago, and are no longer needed. Keep a QT_MODULE(x) define so other modules continue compiling. Change-Id: I8fd76cd5270df8f14aee746b6cf32ebf7c23fec7 Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Make it possible to compile with -no-opengl.Andreas Holzammer2012-01-241-0/+5
| | | | | | | | | | | | | This takes out the dependency to the header files of OpenGl. The ifdef QT_NO_OPENGL in the opengl headers are needed, as qmake adds depends in the makefiles for all GUI headers. Task-number: QTBUG-23207 Change-Id: If31448ee35fd8c39194c7cb7d62273fbc6def883 Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@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>
* Fixed some doc errors in QOpenGLFramebufferObject.Samuel Rødal2011-10-101-1/+0
| | | | | | | Change-Id: Ic132bc31f87900a492a80767aa247c71c48c4a10 Reviewed-on: http://codereview.qt-project.org/6334 Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
* Fixed auto-test failure in tst_QOpenGL.Samuel Rødal2011-09-121-1/+1
| | | | | | | | | QOpenGLFramebufferObject::height() was returning the width... Change-Id: I521c2df02e00015998dc31a74481113af26e1ba6 Reviewed-on: http://codereview.qt-project.org/4663 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Made FBO blit behave properlyGunnar Sletta2011-09-121-0/+4
| | | | | | Change-Id: Iad9b9823bbcdf1068455f743e5fbc554939f8592 Reviewed-on: http://codereview.qt-project.org/4630 Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
* Improved and made public the QOpenGLPaintDevice API.Samuel Rødal2011-09-081-5/+4
| | | | | | | | | | | | | The new API is more flexible, allowing the use of QOpenGLPaintDevice with any QOpenGLContext, and putting more responsibility on the user for ensuring the correct FBO is current (the user knows best anyhow). Task-number: QTBUG-21263 Change-Id: I50b954125f552baef52fbb3fe2ed907a11ad519c Reviewed-on: http://codereview.qt-project.org/4325 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Paul Olav Tvete <paul.tvete@nokia.com>
* Fix build from scratch.Friedemann Kleint2011-08-301-0/+2
| | | | | | Change-Id: Ifd958a51da2dbaf6afc24ef6a10f8d29e0f5f6d2 Reviewed-on: http://codereview.qt.nokia.com/3888 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
* Copy core GL functionality to QtGui with QGL -> QOpenGL naming.Samuel Rødal2011-08-291-0/+158
Change-Id: Ibc989afa4a30dd184d41d1a1cd89f97196e48855 Reviewed-on: http://codereview.qt.nokia.com/3710 Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 01:04:12 +0000