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* Support color font rendering for freetype engineJian Liang2016-05-031-79/+92
| | | | | | | | | | | | | | | | | | This patch mainly do two things: 1) Support color bitmap font for freetype fontengine. This partially based on Corentin Jabot's patch 2) Support ARGB opengl glyph cache when workaround_brokenFBOReadBack is true (It is always true under Android). Some code refactor has been done in QOpenGLTextureGlyphCache. This patch also bump the minimal required freetype version to 2.2 [ChangeLog][General][Freetype] Support color font rendering Task-number: QTBUG-35156 Change-Id: I35aae5f98ba9a27b70a48db3f2647fc070c39c33 Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
* Updated license headersJani Heikkinen2016-01-151-14/+20
| | | | | | | | | | | From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new LGPL header instead of LGPL21 one (in those files which will be under LGPL v3) Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* Update copyright headersJani Heikkinen2015-02-111-7/+7
| | | | | | | | | | | | | | | | | | Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
* Skip unused function isCoreProfile() on non-ES2 platformsTor Arne Vestbø2014-11-051-0/+2
| | | | | Change-Id: Ia84e74512e7001986c620253cdf0bc431ebc00dc Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Do not parent the shader program to the QOpenGLContextJocelyn Turcotte2014-10-231-1/+4
| | | | | | | | | | | | | | | | | | | | | | | When the last QOpenGLContext in a share group is destroyed, all the remaining alive QOpenGL* objects have their resource invalidated. This happens under QOpenGLContext::destroy, but before any QObject children of the QOpenGLContext is destroyed by the QObject destructor. This is currently an issue with ANGLE that could be fixed in its own code, but that is still better for us to be covered against. This means that the OpenGL resource is assumed to be destroyed with the context by the driver, but this isn't always the same. Fix an instance of this in QOpenGLTextureGlyphCache by explicitly owning the blit QOpenGLShaderProgram instead of parenting it under the current GL context. The very same resource invalidation system will prevent anything bad to happen if the QOpenGLContext is destroyed before the QOpenGLTextureGlyphCache. Task-number: QTBUG-41588 Change-Id: Ic3bc69b07bcbdcf7d699ea9139b2e34b04e642e5 Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
* Update license headers and add new license filesMatti Paaso2014-09-241-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 - Removed LICENSE.GPL Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2 Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
* Fix QOpenGLGlyphTexture object leakLiang Jian2014-05-281-1/+3
| | | | | | | | Call clear() in the destructor of QOpenGLTextureGlyphCache class to prevent QOpenGLGlyphTexture object leak. Change-Id: I290b09b0786d30603391e6855a21e9232b112739 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Remove an unused workaround and fix up the comments in the glyph cacheLaszlo Agocs2014-05-131-29/+2
| | | | | | | | | | | This old workaround is not necessary and could not be used anyhow since it would affect a way too wide range of drivers. Modern drivers should be able to honor the default GL_UNPACK_ALIGNMENT of 4 even for 1 byte per pixel formats like GL_ALPHA. Instead, document why the behavior is correct. Change-Id: I1687448ba92875c8ff772ccc371894e88ff64096 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Rename new QOpenGLContext APIsLaszlo Agocs2014-04-251-3/+3
| | | | | | | | | | | | | | isES() becomes isOpenGLES(). The library type enums are changed DesktopGL -> LibGL and GLES2 -> LibGLES. This removes the now unnecessary version number, the confusing "desktop" term and provides better readability. The old function/values are kept until the related qtdeclarative changes are integrated. Task-number: QTBUG-38564 Change-Id: Ibb0a1209985f1ce4bb9451f9b7b093c2b68a6505 Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* Revert "Make OpenGL texture glyph cache use the right freetype glyphs"Allan Sandfeld Jensen2014-03-171-11/+1
| | | | | | | | | | | | | | | | This reverts commit f78661b03cc1affcdd222be50b35d956edac4711. The reverted patch was working around that QFontEngineFT was using the poor QFontEngine fall back. That issue was fixed in commit 0b7beaaaf2384fae01ae403737450a59b2fcabac, and the work around is no longer needed. This also fixes a rare problem with the workaround when the fontengine and the glyph-cache do not share the same default glyph format which can happen with QRawFonts. Change-Id: I150f70a003b137c1d145f6f70cda568c85633e5c Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Avoid using direct OpenGL calls in gui and widgetsLaszlo Agocs2014-03-101-47/+48
| | | | | Change-Id: I5d88a2e204ca23e178a4e3044b9cb13392c3e763 Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
* Dynamic GL: remove exporting symbolsLaszlo Agocs2014-03-041-3/+3
| | | | | | | | | | | | | | | | | | | | | Remove the opengl proxy for now. Later it will either be moved into a separate library or replaced by a QOpenGLFunctions-based approach. This means that the -opengl dynamic configuration is not usable for the time being. The rest of the enablers remain in place. The convenience function QOpenGLFunctions::isES() is now moved to QOpenGLContext and is changed to check the renderable type. This is extremely useful since besides supporting dynamic GL it solves also the problem of GL_ARB_ES2_compatibility (i.e. it triggers the real ES path when creating an ES-compatible context with a desktop OpenGL implementation). Task-number: QTBUG-36483 Task-number: QTBUG-37172 Change-Id: I045be3fc16e9043e1528cf48e6bf0903da4fa7ca Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com> Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
* Add core profile versions of the glyph cache shadersLaszlo Agocs2014-02-281-4/+5
| | | | | | | | | | | | | The last step to make QOpenGLTextureGlyphCache working with OpenGL core profiles. [ChangeLog] Native (that is, not distance field based) text rendering is now functional on OpenGL 3.2+ core profiles too. Task-number: QTBUG-36993 Change-Id: Ic6c0db4806cea623ca7a19ab77b0329155824877 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com> Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* Use a VAO in the texture glyph cacheLaszlo Agocs2014-02-261-10/+29
| | | | | | | Task-number: QTBUG-36993 Change-Id: Icc77035b582c804ed809ea3cd99c0048b34d41d2 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com> Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* Fix glyph texture format on core profileLaszlo Agocs2014-02-261-2/+21
| | | | | | | | | Native text rendering is now functional on core profile too, as long as the driver allows compiling GL2-style shaders. Task-number: QTBUG-36993 Change-Id: I83f3cafae714427dda807921ee79e5a64e55cc64 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Texture glyph cache: Use a vboLaszlo Agocs2014-02-261-3/+17
| | | | | | | | | | | | | | It is not going to work with core profile otherwise. This fixes one of the several problems that make native text rendering in Quick impossible with OpenGL core profile. The GL2 paint engine path is not changed, that continues to use client side pointers. Task-number: QTBUG-36993 Change-Id: Icfbd6efc894a79a3a84568fb792c1cb6692469cb Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Unify glyph format between QFontEngine and QFontEngineGlyphCacheTor Arne Vestbø2014-02-191-3/+3
| | | | | | | | | | | | Instead of the glyph cache having its own cache type that always mapped one to one to a font engine glyph format, causing confusion and needless conversions, the glyph caches now use QFontEngine's glyph format enum. This also removes the iffy use of an int for the glyphFormat in the font engines. Change-Id: I529bad5c179e004f63e152f7dcc311d298c3db98 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Dynamic GL switch on WindowsLaszlo Agocs2014-02-141-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Make OpenGL texture glyph cache use the right freetype glyphsGunnar Sletta2013-11-061-1/+11
| | | | | | | | | The freetype font engine would fall back to rasterizing glyphs via QPainterPath in QFontEngine::alphaMapForGlyph() which has a rather unfortunate implementation. Change-Id: Ic0b4095b6f17ab33f0602139f0a8fb441dfba0ee Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
* Fix ARGB image glyphs on Open GL ES2 or big endianAllan Sandfeld Jensen2013-11-041-11/+16
| | | | | | | | | | | | Change Ie891665ad66e31692b69db02d34be8d303a7d631 accidentially removed the condition that would ensure ARGB glyphs would get swizzled on OpenGL ES2. This patch readds a condition to check that, and also fixes the same on big endian hosts by reusing the OpenGL ES2 code path. Change-Id: I55615c498261a43c50e5a6902a7e2e24cddc4f4b Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
* un-confuse lupdate: use #if 0 consistentlyOswald Buddenhagen2013-08-121-1/+3
| | | | | | | | | it's no good idea to #if 0 the opening brace but comment out the closing one. Change-Id: I6f9ca8f14f0dc82fb22df85de547564336ed0476 Reviewed-by: Sean Harmer <sean.harmer@kdab.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
* Fix upload of glyphs when using RGB32 masks on OpenGL ESGunnar Sletta2013-07-301-14/+4
| | | | | | | | | | | | OpenGL ES doesn't allow internal format to be different from external format, so always do the conversion from BGRA -> RGBA. We are anyway iterating over all the pixels so the performance impact of this should be minimal. Change-Id: Ie891665ad66e31692b69db02d34be8d303a7d631 Reviewed-by: Andy Shaw <andy.shaw@digia.com> Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
* Fix FBO restoring in QOpenGLTextureGlyphCacheValery Volgutov2013-06-051-1/+4
| | | | | | | | | | | | | | | | QOpenGLTextureGlyphCache::restoreTextureData restores FBO which was binded before restoreTextureData call. More specifically, it restores QOpenGLContextPrivate's current_fbo member. This works if FBO was binded by QOpenGLFramebufferObject but not if FBO was binded using glBindFramebufferObject and rendering done via QOpenGLPaintDevice. This patch fixes it by querying current FBO using GL_FRAMEBUFFER_BINDING query and restoring it. Change-Id: Ia97a21e62566dc39a5191b66d3ca0e3ad0845ce1 Reviewed-by: Valery Volgutov <valery.volgutov@lge.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
* Add support for color glyphs (Emoji) on Mac OS X and iOSTor Arne Vestbø2013-02-131-17/+27
| | | | | | | | | | | | | A new glyph type is added to the glyph caches for ARGB bitmap glyphs, and the raster and OpenGL paint engines have been modified to support this glyph type for drawCachedGlyphs(). The CoreText font engine implements support for these glyphs through the CTFontDrawGlyphs API, since CGContextShowGlyphsWithAdvances does not handle color glyphs. Change-Id: Idad9ce75a911cae130d65aebe59142772a16fc12 Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.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>
* Fix native RGB text on OpenGL ES 2 without BGRA extensionEskil Abrahamsen Blomfeldt2012-11-061-3/+15
| | | | | | | | | | Angle, for instance, which is now the default on Windows, does not support the GL_BGRA_EXT format as input for glTexSubImage2D(). In the case where it's not detected, we therefore need to flip the bytes in the input. Change-Id: Ibe78d0223e3c2c39cb1943cdcf67103044d00aa7 Reviewed-by: Samuel Rødal <samuel.rodal@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>
* OpenGL: Use official glext.h and gl2ext.h headersSean Harmer2012-08-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Clean up attribute arrays flags in OpenGL glyph cacheEskil Abrahamsen Blomfeldt2012-07-061-0/+3
| | | | | | | | | When used in the SceneGraph we're expected to disable the arrays after we're done, otherwise we'll get a warning about memory corruption and crashes. Change-Id: Ie8e426309716bef4b75d79039e8ca0b4943c79e7 Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
* Do not delete m_blitProgram more than onceJiang Jiang2012-07-051-1/+0
| | | | | | | | | | | When m_blitProgram is created the constructor will add it to QOpenGLContext as a child of that QObject, so it will be deleted when that QOpenGLContext is deleted as QObject will delete its children in destructor. Delete it here will cause crash in thread termination. Change-Id: If9d3287d159cc3276b6a840a584a1b212b9c9fd0 Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
* Reset pointer to 0 after freeingLars Knoll2012-05-011-1/+3
| | | | | | | | | | set m_textureResource to 0 after freeing it, to ensure we allocate a new one two lines below before using it again 5 lines below. Change-Id: Ib9c4de94aefed91f15d0fab0cd3c774a64f2f891 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Samuel Rødal <samuel.rodal@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>
* Get rid of legacy glTexParameterf calls.Samuel Rødal2011-10-281-8/+8
| | | | | | | | | | | ES 1.0 didn't have glTexParameteri, which is why we sometimes used glTexParameterf. However, we shouldn't use glTexParameterf because that's treating integer values as floating point, which is not type safe. ES 1.1+ and ES 2.x have glTexParameteri, and we don't really care about supporting ES 1.0 in any case in Qt 5. Change-Id: I6b586b31ddc418ba319c4cc88f6bb3978fdbd040 Reviewed-by: Kim M. Kalland <kim.kalland@nokia.com>
* Remove Q_WS_ and Q_OS_SYMBIAN from QtGui.Friedemann Kleint2011-10-131-3/+0
| | | | | | Change-Id: I2ac3376513c3fbfc81a2e695a73a0d948d2696bc Reviewed-on: http://codereview.qt-project.org/6607 Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
* Fixed crash due to uninitialized pointer in OpenGL texture glyph cache.Samuel Rødal2011-10-071-0/+1
| | | | | | | | Change-Id: I384f82f1549a81e19566484e12c75ce8df1f314f Reviewed-on: http://codereview.qt-project.org/6149 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Rename remaining gui/opengl source files to avoid name clashing.Samuel Rødal2011-08-301-0/+396
We don't want to have source files in the opengl module and gui with the same name, at least not private headers. Change-Id: I5f2bf629c943a67a405574fb148aa4c70e58ecbb Reviewed-on: http://codereview.qt.nokia.com/3864 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
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