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Chad Versace 8f62d21bd7 egl: Partially revert 23c86c74, fix eglMakeCurrent 
Fixes regressions in Android CtsVerifier.apk on Intel Chrome OS devices
due to incorrect error handling in eglMakeCurrent. See below on how to
confirm the regression is fixed.

This partially reverts

    commit 23c86c74cc
    Author:  Chad Versace <chadversary@chromium.org>
    Subject: egl: Emit error when EGLSurface is lost

The problem with commit 23c86c74 is that, once an EGLSurface became
lost, the app could never unbind the bad surface. Each attempt to unbind
the bad surface with eglMakeCurrent failed with EGL_BAD_CURRENT_SURFACE.

Specificaly, the bad commit added the error handling below. #2 and #3
were right, but #1 was wrong.

    1. eglMakeCurrent emits EGL_BAD_CURRENT_SURFACE if the calling
       thread has unflushed commands and either previous surface is no
       longer valid.

    2. eglMakeCurrent emits EGL_BAD_NATIVE_WINDOW if either new surface
       is no longer valid.

    3. eglSwapBuffers emits EGL_BAD_NATIVE_WINDOW if the swapped surface
       is no longer valid.

Whe I wrote the bad commit, I misunderstood the EGL spec language
for #1. The correct behavior is, if I understand correctly now, is
below. This patch doesn't implement the correct behavior, though, it
just reverts the broken behavior.

    - Assume a bound EGLSurface is no longer valid.
    - Assume the bound EGLContext has unflushed commands.
    - The app calls eglMakeCurrent. The spec requires eglMakeCurrent to
      implicitly flush. After flushing, eglMakeCurrent emits
      EGL_BAD_CURRENT_SURFACE and does *not* alter the thread's
      current bindings.
    - If the app calls eglMakeCurrent again, and the app inserts no
      commands into the GL command stream between the two eglMakeCurrent
      calls, then this second eglMakeCurrent succeeds without emitting an
      error.

How to confirm this fixes the regression:

    Download android-cts-verifier-7.1_r5-linux_x86-x86.zip from
    source.android.com, unpack, and `adb install CtsVerifier.apk`.
    Run test "Projection Cube". Click the Pass button (a
    green checkmark). Then run test "Projection Widget". Confirm that
    widgets are visible and that logcat does not complain about
    eglMakeCurrent failure.

    Then confirm there are no regressions in the cts-traded module that
    commit 263243b1 fixed:

        cts-tf > run cts --skip-preconditions --skip-device-info \
                 -m CtsCameraTestCases \
                 -t android.hardware.camera2.cts.RobustnessTest

    Tested with Chrome OS board "reef".

Fixes: 23c86c74 (egl: Emit error when EGLSurface is lost)
Acked-by: Tapani Pälli <tapani.palli@intel.com>
Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Cc: Tomasz Figa <tfiga@chromium.org>
Cc: Nicolas Boichat <drinkcat@chromium.org>
Cc: Emil Velikov <emil.velikov@collabora.com>
2017-05-18 10:25:52 -07:00
bin bin/get-fixes-pick-list.sh: bring back the warning 2017-05-13 00:52:34 +03:00
docs docs: update calendar, add news item and link release notes for 17.0.6 2017-05-13 02:20:32 +03:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include vulkan: Update registry and headers to 1.0.49 2017-05-16 08:38:34 -07:00
m4 build: Remove unused AX_CHECK_COMPILE_FLAG macro 2016-07-25 15:14:12 +02:00
scons scons: update for LLVM 4.0 2017-05-04 18:05:04 +01:00
scripts get_reviewer.pl: fix mesa check 2016-08-30 16:44:00 -04:00
src egl: Partially revert 23c86c74, fix eglMakeCurrent 2017-05-18 10:25:52 -07:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Fix up the tab rendering width. 2017-01-03 10:38:53 -08:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore .gitignore: Ignore tags generated by make tags 2016-08-24 11:33:48 +01:00
.mailmap .mailmap: Update my address again 2016-08-25 13:55:52 -07:00
.travis.yml travis: bump MAKEFLAGS to -j4 2017-04-29 13:39:40 +01:00
Android.common.mk Android: correct libz dependency 2017-05-17 14:04:18 +01:00
Android.mk Android: Add LLVM support for Android O 2017-05-11 13:52:21 +01:00
appveyor.yml appveyor: Update dependencies. 2017-03-29 11:53:03 +01:00
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
CleanSpec.mk android: Depend on gallium_dri from EGL, instead of linking in gallium. 2015-06-09 11:38:45 -07:00
common.py scons: Recognize LLVM_CONFIG environment variable. 2016-11-24 13:37:33 -08:00
configure.ac configure: remove unneeded bits around libunwind handling 2017-05-11 14:02:07 +01:00
install-gallium-links.mk gallium: Fix install-gallium-links.mk on non-bash /bin/sh 2016-10-10 08:56:12 -07:00
install-lib-links.mk install-lib-links: remove the .install-lib-links file 2015-02-24 15:33:25 +00:00
Makefile.am configure.ac: deprecate --with-egl-platforms over --with-platforms 2017-04-17 13:37:41 +01:00
REVIEWERS REVIEWERS: add autogen.sh to the autoconf group 2017-03-23 14:50:51 +00:00
SConstruct scons: whitespace cleanup 2016-05-25 12:23:12 -06:00
VERSION docs: add 17.2.0-devel release notes template, bump version 2017-04-17 14:31:41 +01:00

docs/README.WIN32 

File: docs/README.WIN32

Last updated: 21 June 2013


Quick Start
----- -----

Windows drivers are build with SCons.  Makefiles or Visual Studio projects are
no longer shipped or supported.

Run

  scons libgl-gdi

to build gallium based GDI driver.

This will work both with MSVS or Mingw.


Windows Drivers
------- -------

At this time, only the gallium GDI driver is known to work.

Source code also exists in the tree for other drivers in
src/mesa/drivers/windows, but the status of this code is unknown.

Recipe
------

Building on windows requires several open-source packages. These are
steps that work as of this writing.

- install python 2.7
- install scons (latest)
- install mingw, flex, and bison
- install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs
  get pywin32-218.4.win-amd64-py2.7.exe
- install git
- download mesa from git
  see https://www.mesa3d.org/repository.html
- run scons

General
-------

After building, you can copy the above DLL files to a place in your
PATH such as $SystemRoot/SYSTEM32.  If you don't like putting things
in a system directory, place them in the same directory as the
executable(s).  Be careful about accidentially overwriting files of
the same name in the SYSTEM32 directory.

The DLL files are built so that the external entry points use the
stdcall calling convention.

Static LIB files are not built.  The LIB files that are built with are
the linker import files associated with the DLL files.

The si-glu sources are used to build the GLU libs.  This was done
mainly to get the better tessellator code.

If you have a Windows-related build problem or question, please post
to the mesa-dev or mesa-users list.