[Git][xorg-team/lib/pixman][debian-unstable] 43 commits: Post 0.34 branch creation version bump to 0.35.1

[Andreas Boll <aboll@debian.org>]

Title: GitLab

Andreas Boll pushed to branch debian-unstable at X Strike Force / lib / pixman

Commits:

• ba1868a8
  by Oded Gabbay at 2015-12-23T08:46:40Z

  Post 0.34 branch creation version bump to 0.35.1
  
  Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• ceb49cbd
  by Andrea Canciani at 2015-12-23T20:23:46Z

  build: Remove use of BUILT_SOURCES from Makefile.win32
  
  Since 3d81d89c292058522cce91338028d9b4c4a23c24 BUILT_SOURCES is not
  used anymore, but it was unintentionally left in Win32 Makefiles.
  
  Signed-off-by: Andrea Canciani <ranma42@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• cc35d019
  by Andrea Canciani at 2015-12-23T20:23:57Z

  build: Avoid phony `pixman` target in test/Makefile.win32
  
  Instead of explicitly depending on "pixman" for the "all" and "check"
  targets, rely on the dependency to the .lib file
  
  Signed-off-by: Andrea Canciani <ranma42@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• 93b876c1
  by Andrea Canciani at 2015-12-23T20:24:06Z

  build: Do not use `mkdir -p` on Windows
  
  When the build is performed using `cmd.exe` as shell, the `mkdir`
  command does not support the `-p` flag. The ability to create multiple
  netsted folder is not used, hence it can be easily replaced by only
  creating the directory if it does not exist.
  
  This makes the build work on the `cmd.exe` shell, except for the
  `clean` targets.
  
  Signed-off-by: Andrea Canciani <ranma42@gmail.com>
  Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• af068971
  by Simon Richter at 2015-12-23T20:24:17Z

  build: Use `del` instead of `rm` on `cmd.exe` shells
  
  The `rm` command is not usually available when running on Win32 in a
  `cmd.exe` shell. Instead the shell provides the `del` builtin, which
  has somewhat more limited wildcars expansion and error handling.
  
  This makes all of the Makefile targets work on Win32 both using
  `cmd.exe` and using the MSYS environment.
  
  Signed-off-by: Simon Richter <Simon.Richter@hogyros.de>
  Signed-off-by: Andrea Canciani <ranma42@gmail.com>
  Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• 342cbf16
  by Andrea Canciani at 2015-12-30T13:06:40Z

  build: Distinguish SKIP and FAIL on Win32
  
  The `check` target in test/Makefile.win32 assumed that any non-0 exit
  code from the tests was an error, but the testsuite is currently using
  77 as a SKIP exit code (based on the convention used in autotools).
  
  Fixes fence-image-self-test and cover-test (now reported as SKIP).
  
  Signed-off-by: Andrea Canciani <ranma42@gmail.com>
  Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• 7c6066b7
  by Thomas Petazzoni at 2016-01-31T14:15:26Z

  pixman-private: include <float.h> only in C code
  
  <float.h> is included unconditionally by pixman-private.h, which in
  turn gets included by assembler files. Unfortunately, with certain C
  libraries (like the musl C library), <float.h> cannot be included in
  assembler files:
  
    CCLD     libpixman-arm-simd.la
  /home/test/buildroot/output/host/usr/arm-buildroot-linux-musleabihf/sysroot/usr/include/float.h: Assembler messages:
  /home/test/buildroot/output/host/usr/arm-buildroot-linux-musleabihf/sysroot/usr/include/float.h:8: Error: bad instruction `int __flt_rounds(void)'
  /home/test/buildroot/output/host/usr/arm-buildroot-linux-musleabihf/sysroot/usr/include/float.h: Assembler messages:
  /home/test/buildroot/output/host/usr/arm-buildroot-linux-musleabihf/sysroot/usr/include/float.h:8: Error: bad instruction `int __flt_rounds(void)'
  
  It turns out however that <float.h> is not needed by assembly files,
  so we move its inclusion within the #ifndef __ASSEMBLER__ condition,
  which solves the problem.
  
  Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  Reviewed-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
  

• eb4a832e
  by Søren Sandmann Pedersen at 2016-09-02T04:40:11Z

  pixman-fast-path.c: Pick NEAREST affine fast paths before BILINEAR ones
  
  When a BILINEAR filter is reduced to NEAREST, it is possible for both
  types of fast paths to run; in this case, the NEAREST ones should be
  preferred as that is the simpler filter.
  
  Signed-off-by: Soren Sandmann <soren.sandmann@gmail.com>
  Reviewed-by: Bill Spitzak <spitzak@gmail.com>
  

• 76123690
  by Søren Sandmann Pedersen at 2016-09-02T04:40:11Z

  Add new test of filter reduction from BILINEAR to NEAREST
  
  This new test tests a bunch of bilinear downscalings, where many have
  a transformation such that the BILINEAR filter can be reduced to
  NEAREST (and many don't).
  
  A CRC32 is computed for all the resulting images and compared to a
  known-good value for both 4-bit and 7-bit interpolation.
  
  V2: Remove leftover comment, some minor formatting fixes, use a
  timestamp as the PRNG seed.
  
  Signed-off-by: Søren Sandmann <soren.sandmann@gmail.com>
  Reviewed-by: Bill Spitzak <spitzak@gmail.com>
  

• b9ead7dd
  by Søren Sandmann Pedersen at 2016-09-02T04:40:11Z

  More general BILINEAR=>NEAREST reduction
  
  Generalize and simplify the code that reduces BILINEAR to NEAREST so
  that the reduction happens for all affine transformations where
  t00...t12 are integers and (t00 + t01) and (t10 + t11) are both
  odd. This is a sufficient condition for the resulting transformed
  coordinates to be exactly at the center of a pixel so that BILINEAR
  becomes identical to NEAREST.
  
  V2: Address some comments by Bill Spitzak
  
  Signed-off-by: Søren Sandmann <soren.sandmann@gmail.com>
  Reviewed-by: Bill Spitzak <spitzak@gmail.com>
  

• 99b57410
  by Bill Spitzak at 2016-09-02T04:40:11Z

  demos/scale: Compute filter size using boundary of xformed ellipse
  
  Instead of using the boundary of xformed rectangle, use the boundary
  of xformed ellipse. This is much more accurate and less blurry. In
  particular the filtering does not change as the image is rotated.
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  Reviewed-by: Soren Sandmann <soren.sandmann@gmail.com>
  

• 1e1af34d
  by Bill Spitzak at 2016-09-02T04:40:11Z

  demos/scale: fix blank subsamples spin box
  
  It now shows the initial value of 4 when the demo is started
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• afee2adc
  by Bill Spitzak at 2016-09-02T04:40:11Z

  demos/scale: Default to locked axis
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• 375f5ec5
  by Bill Spitzak at 2016-09-02T04:40:11Z

  demos/scale: Added pulldown to choose PIXMAN_FILTER_* value
  
  This is very useful for comparing the results of SEPARABLE_CONVOLUTION
  with BILINEAR and NEAREST.
  
  v14: Removed good/best items
  v15: Skip filter generation so gnuplot output continues showing previous value
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• d0e6c9f4
  by Bill Spitzak at 2016-09-02T04:40:11Z

  pixman-image: Added enable-gnuplot config to view filters in gnuplot
  
  If enable-gnuplot is configured, then you can pipe the output of a
  pixman-using program to gnuplot and get a continuously-updated plot of
  the horizontal filter. This works well with demos/scale to test the
  filter generation.
  
  The plot is all the different subposition filters shuffled
  together. This is misleading in a few cases:
  
    IMPULSE.BOX - goes up and down as the subfilters have different
                  numbers of non-zero samples
  
    IMPULSE.TRIANGLE - somewhat crooked for the same reason
  
    1-wide filters - looks triangular, but a 1-wide box would be more
                     accurate
  
  Changes by Søren: Rewrote the pixman-filter.c part to
       - make it generate correct coordinates
       - add a comment on how coordinates are generated
       - in rounding.txt, add a ceil() variant of the first-sample
         formula
       - make the gnuplot output slightly prettier
  
  v7: First time this ability was included
  
  v8: Use config option
      Moved code to the filter generator
      Modified scale demo to not call filter generator a second time.
  
  v10: Only print if successful generation of plots
       Use #ifdef, not #if
  
  v11: small whitespace fixes
  v12: output range from -width/2 to width/2 and include y==0, to avoid misleading plots
       for subsample_bits==0 and for box filters which may have no small values.
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  

• 6acaf2bc
  by Bill Spitzak at 2016-09-02T04:40:12Z

  pixman-filter: reduce amount of malloc/free/memcpy to generate filter
  
  Rearranged so that the entire block of memory for the filter pair
  is allocated first, and then filled in. Previous version allocated
  and freed two temporary buffers for each filter and did an extra
  memcpy.
  
  v8: small refactor to remove the filter_width function
  
  v10: Restored filter_width function but with arguments changed to
       match later patches
  
  v11: Removed unused arg and pointer from filter_width function
       Whitespace fixes.
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  Acked-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• 6ae281fb
  by Bill Spitzak at 2016-09-02T04:40:12Z

  pixman-filter: Correct Simpsons integration
  
  Simpsons uses cubic curve fitting, with 3 samples defining each
  cubic. This makes the weights of the samples be in a pattern of
  1,4,2,4,2...4,1, and then dividing the result by 3.
  
  The previous code was using weights of 1,2,0,6,0,6...,2,1.
  
  With this fix the integration is accurate enough that the number of
  samples could be reduced a lot. Multiples of 12 seem to work best.
  
  v7: Merged with patch to reduce from 128 samples to 16
  v9: Changed samples from 16 to 12
  v10: Fixed rebase error that made it not compile
  v11: minor whitespace change
  v14: more whitespace changes
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• 8855b3a2
  by Bill Spitzak at 2016-09-02T04:40:12Z

  pixman-filter: integral splitting is only needed for triangle filter
  
  Only the triangle is discontinuous at 0. The other filters resemble a
  cubic closely enough that Simpsons integration works without
  splitting.
  
  Changes by Søren: Rebase without the changes to the integral function,
  update comment to match the new code.
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Signed-off-by: Søren Sandmann <soren.sandmann@gmail.com>
  Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• 3b46fce6
  by Søren Sandmann Pedersen at 2016-09-02T04:40:12Z

  pixman-filter: Speed up BOX/BOX filter
  
  The convolution of two BOX filters is simply the length of the
  interval where both are non-zero, so we can simply return width from
  the integral() function because the integration region has already
  been restricted to be such that both functions are non-zero on it.
  
  This is both faster and more accurate than doing numerical integration.
  
  This patch is based on one by Bill Spitzak
  
      https://lists.freedesktop.org/archives/pixman/2016-March/004446.html
  
  with these changes:
  
  - Rebased to not assume any changes in the arguments to integral().
  
  - Dropped the multiplication by scale
  
  - Added more details in the commit message.
  
  Signed-off-by: Søren Sandmann <soren.sandmann@gmail.com>
  Reviewed-by: Bill Spitzak <spitzak@gmail.com>
  

• 13314244
  by Søren Sandmann Pedersen at 2016-09-03T18:53:06Z

  pixman-filter: Fix several issues related to normalization
  
  There are a few bugs in the current normalization code
  
  (1) The normalization is based on the sum of the *floating point*
      values generated by integral(). But in order to get the sum to be
      close to pixman_fixed_1, the sum of the rounded fixed point values
      should be used.
  
  (2) The multiplications in the normalization loops often round the
      same way, so the residual error can fairly large.
  
  (3) The residual error is added to the sample located at index
      (width - width / 2), which is not the midpoint for odd widths (and
      for width 1 is in fact outside the array).
  
  This patch fixes these issues by (1) using the sum of the fixed point
  values as the total to divide by, (2) doing error diffusion in the
  normalization loop, and (3) putting any residual error (which is now
  guaranteed to be less than pixman_fixed_e) at the first sample, which
  is the only one that didn't get any error diffused into it.
  
  Signed-off-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• d286078b
  by Bill Spitzak at 2016-09-03T18:53:07Z

  pixman-filter: Nested polynomial for cubic
  
  v11: Restored range checks
  
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
  

• 17c4ce2e
  by Bill Spitzak at 2016-09-03T18:53:07Z

  pixman-filter: Made Gaussian a bit wider
  
  Expanded the size slightly (from ~4.25 to 5) to make the cutoff less
  noticable.  Previouly the value at the cutoff was
  gaussian_filter(sqrt(2)*3/2) = 0.00626 which is larger than the
  difference between 8-bit pixels (1/255 = 0.003921). New cutoff is
  gaussian_filter(2.5) = 0.001089 which is smaller.
  
  v11: added some math to commit message
  v14: left SIGMA in there
  Signed-off-by: Bill Spitzak <spitzak@gmail.com>
  Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
  Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>
  

• 85467ec3
  by Søren Sandmann Pedersen at 2016-09-03T19:09:12Z

  Revert "demos/scale: Added pulldown to choose PIXMAN_FILTER_* value"
  
  This reverts commit 375f5ec5c5d2a6cc3586f57e36fdf08a3d0ac4e4.
  
  This patch was accidentally pushed.
  

• 8b95e0e4
  by Behdad Esfahbod at 2018-01-09T09:26:29Z

  Promote unsigned short to unsigned int explicitly
  
  ...to avoid default promotion to signed int, which causes undefined
  behaviour in the shift _expression_.
  

• ddf42d62
  by Dan Horák at 2018-05-14T20:31:49Z

  vmx: Fix vector loads on ppc64le
  
  Use vector intrinsic for loading possibly unaligned data instead of a
  typecast.
  
  Bugzilla: https://bugzilla.redhat.com/1572540
  Signed-off-by: Dan Horák <dan@danny.cz>
  Signed-off-by: Adam Jackson <ajax@redhat.com>
  Tested-by: Matt Turner <mattst88@gmail.com>
  Reviewed-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
  

• 9034d0cc
  by Adam Jackson at 2018-06-05T16:13:35Z

  ci: Add .gitlab-ci.yml
  
  Just builds on Fedora 28 for x86_64 at the moment, but it's a start.
  Credit to Daniel Stone for eliminating the nested docker image.
  
  Signed-off-by: Adam Jackson <ajax@redhat.com>
  

• a75c69f1
  by Adam Jackson at 2018-06-05T16:33:50Z

  Merge branch 'ci' into 'master'
  
  ci: Add .gitlab-ci.yml
  
  See merge request pixman/pixman!1

• bd2b4918
  by Vladimir Smirnov at 2018-06-05T16:35:07Z

  test: Adjust for clang's removal of __builtin_shuffle
  
  __builtin_shuffle was removed in clang 5.0.
  
  Build log says:
  test/utils-prng.c:207:27: error: use of unknown builtin '__builtin_shuffle' [-Wimplicit-function-declaration]
              randdata.vb = __builtin_shuffle (randdata.vb, bswap_shufflemask);
                            ^
  test/utils-prng.c:207:25: error: assigning to 'uint8x16' (vector of 16 'uint8_t' values) from incompatible type 'int'
              randdata.vb = __builtin_shuffle (randdata.vb, bswap_shufflemask);
                          ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  2 errors generated
  
  Link to original discussion:
  http://lists.llvm.org/pipermail/cfe-dev/2017-August/055140.html
  
  It's possible to build pixman if attached patch is applied. Basically
  patch adds check for __builtin_shuffle support and in case there is
  none, falls back to clang-specific __builtin_shufflevector that do the
  same but have different API.
  
  Bugzilla: https://bugs.gentoo.org/646360
  Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104886
  Tested-by: Philip Chimento <philip.chimento@gmail.com>
  Reviewed-by: Matt Turner <mattst88@gmail.com>
  Reviewed-by: Adam Jackson <ajax@redhat.com>
  

• 018bf2f2
  by Siarhei Siamashka at 2018-07-06T18:44:22Z

  test: Fix stride calculation in stress-test
  
  Currently the number of bits per pixel is used instead of the
  number of bytes per pixel when calculating image strides. This
  does not cause any real problems, but the gaps between scanlines
  are excessively large.
  
  This patch actually converts bits to bytes and rounds up the result
  to the nearest byte boundary.
  
  Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
  Reviewed-by: soren.sandmann@gmail.com
  

• a4b8a26d
  by Maarten Lankhorst at 2018-11-06T13:24:05Z

  pixman: Add support for argb/xrgb float formats, v5.
  
  Pixman is already using the floating point formats internally, expose
  this capability in case someone wants to support higher bit per
  component formats.
  
  This is useful for igt which depends on cairo to do the rendering.
  It can use it to convert floats internally to planar Y'CbCr formats,
  or to F16.
  
  We add a new type PIXMAN_TYPE_RGBA_FLOAT for this format, which is an
  all float array of R, G, B, and A. Formats that use mixed float/int
  RGBA aren't supported, and will probably need their own type.
  
  Changes since v1:
  - Use RGBA 128 bits and RGB 96 bits memory layouts, to better match the opengl format.
  Changes since v2:
  - Add asserts in accessor and for strides to force alignment.
  - Move test changes to their own commit.
  Changes since v3:
  - Define 32bpc as PIXMAN_FORMAT_PACKED_C32
  - Rename pixman accessors from rgb*_float_float to rgb*f_float
  Changes since v4:
  - Create a new PIXMAN_FORMAT_BYTE for fitting up to 64 bits per component.
    (based on Siarhei Siamashka's suggestion)
  - Use new format type PIXMAN_TYPE_RGBA_FLOAT
  
  Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
  Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #v4
  [mlankhorst: Fix missing braces in PIXMAN_FORMAT_RESHIFT macro]
  

• 489fa0df
  by Maarten Lankhorst at 2018-11-06T13:25:49Z

  pixman: Add tests for (a)rgb floating point formats.
  
  Add some basic tests to ensure that the newly added formats work as
  intended.
  
  Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
  Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
  

• 8a5d44c4
  by Maarten Lankhorst at 2018-11-21T11:39:33Z

  pixman: Update git repository to the one at gitlab.
  
  Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
  

• 0313f35a
  by Maarten Lankhorst at 2018-11-21T11:40:26Z

  Bump version to 0.36.0
  
  Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
  

• 0c08dcfc
  by Andreas Boll at 2018-12-12T20:01:18Z

  Merge tag 'pixman-0.34.0' into debian-unstable-new
  
  pixman 0.34.0 release
  

• 51baef77
  by Andreas Boll at 2018-12-12T20:01:26Z

  Merge branch 'debian-unstable' into debian-unstable-new
  

• a26c93f9
  by Andreas Boll at 2018-12-12T20:07:41Z

  Bump changelogs
  

• c8e824af
  by Andreas Boll at 2018-12-12T20:51:21Z

  Update to my Debian address.
  

• 2d7f5e58
  by Andreas Boll at 2018-12-12T20:52:18Z

  Update Vcs-* URLs to point to salsa.debian.org.
  

• da6e874f
  by Andreas Boll at 2018-12-12T20:53:40Z

  Use https URL in debian/copyright.
  

• ea26aeb9
  by Andreas Boll at 2018-12-12T20:54:43Z

  Set source format to 1.0.
  

• 8c5411a2
  by Andreas Boll at 2018-12-12T20:55:28Z

  Bump debhelper compat to 11.
  

• 431e754d
  by Andreas Boll at 2018-12-12T20:55:48Z

  Bump standards version to 4.2.1.
  

• 60eec335
  by Andreas Boll at 2018-12-12T21:02:53Z

  Upload to unstable.
  

30 changed files:

• + .gitlab-ci.yml
• ChangeLog
• Makefile.am
• Makefile.win32.common
• configure.ac
• + contrib/ci.sh
• debian/changelog
• debian/compat
• debian/control
• debian/copyright
• debian/rules
• + debian/source/format
• demos/scale.c
• demos/scale.ui
• pixman/pixman-access.c
• pixman/pixman-bits-image.c
• pixman/pixman-fast-path.c
• pixman/pixman-filter.c
• pixman/pixman-image.c
• pixman/pixman-private.h
• pixman/pixman-solid-fill.c
• pixman/pixman-vmx.c
• pixman/pixman.c
• pixman/pixman.h
• pixman/rounding.txt
• test/Makefile.sources
• test/Makefile.win32
• test/alphamap.c
• + test/filter-reduction-test.c
• test/stress-test.c

The diff was not included because it is too large.

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