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>
it's very unlikely that these artifacts will need rebuilding during a
debugging session (these pdbs are meant to support crash dump analysis).
Change-Id: Ia8138f9298355b402d8dd3f042f85b669693de64
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
The compiler defines _WIN32 for x86 builds.
The compiler defines _WIN32 and _WIN64 for x86_64 builds.
For consistency, the same should happen to the user defined macros
without underscore. The WIN32 macro is added in the win32-* mkspecs.
Task-number: QTBUG-30223
Change-Id: I342afed731f4ba253a2708b98f575039a04613d7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Replace all tabs with proper space characters and consistently align
the '=' characters. The default alignment for the '=' of 25 characters
has been left as is to get a minimal diff. Lines with the '=' further
to the right and those belonging to 'proper code (TM)' have not been
touched.
The work was mostly done using the following python script (might
come in handy again...):
import sys, re
indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character
p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)')
for fn in sys.argv[1:]:
with open(fn, 'r+') as f:
lines = []
nl_count = 0
continuity_indent = None
for l in f:
m = p.match(l)
nl = l
if m:
n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1))
if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0:
n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4
n_spaces = max(1, n_spaces) # we want at least one space before '='/'+='
nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n'
continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$'
elif continuity_indent:
nl = ' '*continuity_indent + l.lstrip()
if l[-2] != '\\': # check when to stop the continuation
continuity_indent = None
elif l.startswith('#'):
nl = l.expandtabs(2)
if l != nl:
nl_count += 1
lines.append(nl)
if nl_count > 0:
print fn, nl_count, len(lines)
f.seek(0)
f.writelines(lines)
f.truncate()
Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Add a 'd' to debug builds to allow both release and debug builds
to be used.
- Add .def-files for Debug
- Build all libraries debug/release
- Add description to README.qt
- Differentiate debug/release in qmake.conf.
Task-number: QTBUG-28196
Change-Id: Ib3081004a6ed2ad71d353244154684d2e0ebbc86
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
The printer support API has moved to printsupport module/plugins
Change-Id: I6fdc6c08e600d0f7cc8d79bef808227b54880904
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
on the way to eliminate scoping based on the spec.
gcc and msvc go as such into CONFIG, the other ones get the vendor
prefixed, as most are mostly unknown and thus likely to clash with
users' flags.
Change-Id: Ie622f53d90e96dbf05ce7d8c638cd355f04fa20c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
"CONFIG += qt warn_on release link_prl" is in every single spec (though
for link_prl there is one genuine exception and two apparent omissions).
Change-Id: I72e1e315586af828eefa3b0b70998ab892ec3c1a
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
there is no reason whatsoever to duplicate this so many times, and even
less reason to have specs with a deviating default.
Change-Id: Ia25836c079580adebc373697b8bd03598f79c69b
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
not strictly necessary, but nicer.
QMAKE_PLATFORM (and thus CONFIG) now also contains the name of the OS, and
its family (if applicable, e.g., bsd). this also adds more feature search
paths.
Change-Id: I3ab971e6e3b2b32cae53b95e4bc67a86688bc5cb
Reviewed-by: Qt Doc Bot <qt_docbot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
this is in fact a shell-related flag, which determines how QMAKE_DIR_COPY
is assumed to behave.
Change-Id: If774f8a83b40c9ae7107c8e7ef7263af8a2e6c6e
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
there are only two types. everything else is duplication.
Change-Id: I87f2bdd3d56b94bb2ecdb60e8861afeb9af3666f
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
they are equivalent to QT_INSTALL_(HEADERS|LIBS)/get.
Change-Id: Ic4b47f3ca7db55785b96f19020a2fa020a8d25bd
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
This allows us to have different flags for the compilers for
supporting the same feature. For example, the official flag in GCC to
support AVX2 is -mavx2, but ICC does not support it (yet), requiring
-march=core-avx2 or -xCORE-AVX2. That flag, instead, enables support
for all the features that the "Core-AVX2" processor (codename Haswell)
will support. And clearly, the MSVC flags are different.
Change-Id: I33b6d8617520925e807747180a8dbaafd79b7a9a
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
- 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>
Follow-up to d13bedb9d8
where the regexp was a bit too tight and missed many specs.
Also cleaned up QMAKE_IDC, QMAKE_RCC and QMAKE_IDL.
Change-Id: Ia15007141739019ef5ccfdda0c856c478f732b85
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
This will make projects generated by visual studio being successfully
linked to the Qt dlls if they use the QString::fromWCharArray() or
QString::toWCharArray() methods.
Change-Id: Ie266576c1bcd44cf8534f12b10629b94ef3e1d3f
Merge-request: 727
Reviewed-on: http://codereview.qt.nokia.com/772
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
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
