A security advisory (TALOS-2019-0857/CVE-2019-5068) found that
creating shared memory regions with permission mode 0777 could allow
any user to access that memory. Several Mesa drivers use shared-
memory XImages to implement back buffers for improved performance.
This path changes the shmget() calls to use 0600 (user r/w).
Tested with legacy Xlib driver and llvmpipe.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Adds an extension to glFramebufferParameteri
that will specify if the framebuffer is vertically
flipped. Historically system framebuffers are
vertically flipped and user framebuffers are not.
Checking to see the state was done by looking at
the name field. This adds an explicit field.
v2:
* updated spec language [for chadv]
* correctly specifying ES 3.1 [for chadv]
* refactor access to rb->Name [for jason]
* handle GetFramebufferParameteriv [for chadv]
v3:
* correct _mesa_GetMultisamplefv [for kusmabite]
v4:
* update spec language [for chadv]
* s/GLboolean/bool/g [for chadv]
* s/InvertedY/FlipY/g [for chadv]
* s/inverted_y/flip_y/g [for chadv]
* assert changes [for chadv]
Reviewed-by: Chad Versace <chadversary@chromium.org>
Clean up misrepetitions ('if if', 'the the' etc) found throughout the
comments. This has been done manually, after grepping
case-insensitively for duplicate if, is, the, then, do, for, an,
plus a few other typos corrected in fly-by
v2:
* proper commit message and non-joke title;
* replace two 'as is' followed by 'is' to 'as-is'.
v3:
* 'a integer' => 'an integer' and similar (originally spotted by
Jason Ekstrand, I fixed a few other similar ones while at it)
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>
Change all 4 color component unsigned byte formats to meet spec for P
Type formats:
s/MESA_FORMAT_RGBA8888\b/MESA_FORMAT_A8B8G8R8_UNORM/g
s/MESA_FORMAT_RGBA8888_REV\b/MESA_FORMAT_R8G8B8A8_UNORM/g
s/MESA_FORMAT_ARGB8888\b/MESA_FORMAT_B8G8R8A8_UNORM/g
s/MESA_FORMAT_ARGB8888_REV\b/MESA_FORMAT_A8R8G8B8_UNORM/g
s/MESA_FORMAT_RGBX8888\b/MESA_FORMAT_X8B8G8R8_UNORM/g
s/MESA_FORMAT_RGBX8888_REV\b/MESA_FORMAT_R8G8B8X8_UNORM/g
s/MESA_FORMAT_XRGB8888\b/MESA_FORMAT_B8G8R8X8_UNORM/g
s/MESA_FORMAT_XRGB8888_REV\b/MESA_FORMAT_X8R8G8B8_UNORM/g
The previous commit introduced extra words, breaking the formatting.
This text transformation was done automatically via the following shell
command:
$ git grep 'THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY' | sed 's/:.*$//' | xargs -I {} sh -c 'vim -e -s {} < vimscript
where 'vimscript' is a file containing:
/THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY/;/\*\// !fmt -w 78 -p ' * '
:wq
Reviewed-by: Brian Paul <brianp@vmware.com>
This brings the license text in line with the MIT License as published
on the Open Source Initiative website:
http://opensource.org/licenses/mit-license.php
Generated automatically be the following shell command:
$ git grep 'THE AUTHORS BE LIABLE' | sed 's/:.*$//g' | xargs -I '{}' \
sed -i 's/THE AUTHORS/THE AUTHORS OR COPYRIGHT HOLDERS/' {}
This introduces some wrapping issues, to be fixed in the next commit.
Reviewed-by: Brian Paul <brianp@vmware.com>
Generated automatically be the following shell command:
$ git grep 'BRIAN PAUL BE LIABLE' | sed 's/:.*$//g' | xargs -I '{}' \
sed -i 's/BRIAN PAUL/THE AUTHORS/' {}
The intention here is to protect all authors, not just Brian Paul. I
believe that was already the sensible interpretation, but spelling it
out is probably better.
More practically, it also prevents people from accidentally copy &
pasting the license into a new file which says Brian is not liable when
he isn't even one of the authors.
Reviewed-by: Brian Paul <brianp@vmware.com>
We sometimes need a rendering context when deleting renderbuffers.
Pass it explicitly instead of trying to grab a current context
(which might be NULL). The next patch will make use of this.
Note: this is a candidate for the stable branches.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This patch has been generated by the following Coccinelle semantic
patch:
// Don't cast the return value of malloc/realloc.
//
// Casting the return value of malloc/realloc only stands to hide
// errors.
@@
type T;
expression E1, E2;
@@
- (T)
(
_mesa_align_calloc(E1, E2)
|
_mesa_align_malloc(E1, E2)
|
calloc(E1, E2)
|
malloc(E1)
|
realloc(E1, E2)
)
XGetImage() will generate a BadMatch error if the source window isn't
visible. When that happens, create a new XImage. Fixes piglit 'select'
test failures with swrast/xlib driver.
NOTE: This is a candidate for the 8.0 branch.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This fixes the glReadPixels() regression for reading from the front/back
color buffers.
Note, we only allow one mapping of an XImage/Pixmap renderbuffer
at any time. That might need to be revisited in the future.
This code was for the old GLcore build of the software rasteriser. The
X server switched to a DRI driver for software indirect GLX long ago.
Signed-off-by: Adam Jackson <ajax@redhat.com>
_ActualFormat is replaced by Format (MESA_FORMAT_x).
ColorEncoding, ComponentType, RedBits, GreenBits, BlueBits, etc. are
all replaced by MESA_FORMAT_x queries.
Drop XMesaSetVisualDisplay(), XMesaReset(), no longer used.
Add XMesaCopyContext() and move the GlxSetRenderTables() call for XGL within
XMesaForceCurrent(). This is to make xserver/GL/mesa/X/xf86glx.c unaware of
Mesa internals.
Also, clean some ifdef's to make it clear that USE_XSHM and XFree86Server are
mutually exclusive.
Lastly,
- move gcstruct.h from glxheader.h up to xmesa_xf86.h since it calls *gc->ops
- drop GL/glxtokens.h from xm_api|dd.c, GLX tokens come from glcore.h and are
used irrelevant of XFree86.
In xmesa_check_and_update_buffer_size() handle xmctx==NULL correctly: still
call _mesa_resize_framebufer(). If we don't we can wind up in a situation
where the framebuffer size is non-zero but an attached renderbuffer size
is still initialized to zero. This inconsistancy can later cause problems.
Check for zero-size renderbuffers in update_color_draw_buffers() and
update_color_read_buffer().
See bug 7205.
All buffer resizes now handled by xmesa_check_and_update_buffer_size() which
uses the _mesa_resize_framebuffer() function.
Moved all low-level XImage/Pixmap resizing into xm_buffers.c file.
Also, update lots of comments for Doxygen.
