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1114 Commits

Author SHA1 Message Date
Giorgio Vazzana 1e6072139b swscale: x86: fix #endif comments in rgb2rgb template file 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-08-19 21:50:09 +02:00
Martin Storsjö 1d9c2dc89a Don't include common.h from avutil.h 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-08-15 22:32:06 +03:00
Mans Rullgard 90540c2d5a x86: swscale: fix fragile memory accesses 
To access data at multiple fixed offsets from a base address, this
code uses a single "m" operand and code of the form "32%0", relying on
the memory operand instantiation having no displacement, giving a final
result of the form "32(%rax)".  If the compiler uses a register and
displacement, e.g. "64(%rax)", the end result becomes "3264(%rax)",
which obviously does not work.

Replacing the "m" operands with "r" operands allows safe addition of a
displacement.  In theory, multiple memory operands could use a shared
base register with different index registers, "(%rax,%rbx)", potentially
making more efficient use of registers.  In the cases at hand, no such
sharing is possible since the addresses involved are entirely unrelated.

After this change, the code somewhat rudely accesses memory without
using a corresponding memory operand, which in some cases can lead to
unwanted "optimisations" of surrounding code.  However, the original
code also accesses memory not covered by a memory operand, so this is
not adding any defect not already present.  It is also hightly unlikely
that any such optimisations could be performed here since the memory
locations in questions are not accessed elsewhere in the same functions.

This fixes crashes with suncc.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-08-13 14:51:52 +01:00
Mans Rullgard 10b83cb653 x86: swscale: remove disabled code 
This code has been disabled since 2003.  Nobody will ever look at
it again.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-08-13 14:51:52 +01:00
Mans Rullgard c318626ce2 x86: rename libavutil/x86_cpu.h to libavutil/x86/asm.h 
This puts x86-specific things in the x86/ subdirectory where they
belong.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-08-09 00:58:20 +01:00
Diego Biurrun 239fdf1b4a x86: build: replace mmx2 by mmxext 
Refactoring mmx2/mmxext YASM code with cpuflags will force renames.
So switching to a consistent naming scheme beforehand is sensible.
The name "mmxext" is more official and widespread and also the name
of the CPU flag, as reported e.g. by the Linux kernel.
 2012-08-03 22:51:05 +02:00
Ronald S. Bultje 8e5d71d110 swscale: bury one more piece of inline asm under HAVE_INLINE_ASM. 2012-07-29 17:14:48 -07:00
Ronald S. Bultje 3b175384bb swscale: add missing HAVE_INLINE_ASM check. 
The function called in this block is under HAVE_INLINE_ASM itself also.
 2012-07-22 19:46:47 -07:00
Diego Biurrun 5a6e3c039c swscale: Mark all init functions as av_cold 2012-07-23 01:30:05 +02:00
Diego Biurrun 16d2a1a51c swscale: x86: Drop pointless _mmx suffix from filenames 
The files do not contain only MMX code.
 2012-07-23 01:30:04 +02:00
Ronald S. Bultje a6e922ffa2 swscale: place inline assembly bilinear scaler under HAVE_INLINE_ASM. 2012-07-22 16:08:13 -07:00
Ronald S. Bultje b2668c85e9 x86: swscale: Place inline assembly code under appropriate #ifdefs 
Fixes compilation for compilers that do not support gcc inline assembly.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-07-21 22:22:58 +02:00
Martin Storsjö 557519189f swscale: yuv2planeX 8bit >=sse2 functions need aligned stack on x86-32. 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-07-04 08:25:57 -07:00
Diego Biurrun 2047e40e6e Clarify Doxygen comment for FF_API_* #defines. 2012-07-04 15:10:10 +02:00
Diego Biurrun 86ab7b0f2f Create version.h headers for libraries that lack them 2012-07-04 15:10:06 +02:00
Mans Rullgard 4996e8f510 bfin: libswscale: add const where appropriate to fix warnings 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-06-20 02:15:33 +01:00
Mans Rullgard 6bac8971cc bfin: libswscale: remove unnecessary #includes 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-06-20 02:15:33 +01:00
Ronald S. Bultje 404410a53a sws: fix planar RGB input conversions for 9/10/16 bpp. 
Fixes bug 282.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-06-12 19:52:00 +02:00
Diego Biurrun 9eb83a56aa build: cosmetics: Split HEADERS/OBJS/PROGS lists into one entry per line. 2012-05-07 14:01:32 +02:00
Diego Biurrun 9b75ae05cf swscale: K&R formatting cosmetics (part III) 2012-04-22 17:37:07 +02:00
Ronald S. Bultje 7f77e9041a swscale: clip before assigning tables in RGB output functions. 2012-04-14 16:29:24 -07:00
Ronald S. Bultje 4860625236 swscale: fix off-by-one in second coefficient in bilinear filters. 
If coefficient A is 12-bits xixed-point number "X", then the other
coefficient is (1 << 12) - X, not (1 << 12) - X - 1.
 2012-04-14 16:29:10 -07:00
Ronald S. Bultje 9206ac80a5 swscale: handle last pixel if lines have an odd width. 
Fixes bug 270.
 2012-04-13 14:21:58 -07:00
Diego Biurrun ef0ee7f657 swscale: K&R formatting cosmetics (part II) 
Also adjust some comments including wording and typo fixes.
 2012-04-13 19:22:00 +02:00
Diego Biurrun baaab6069a build: Move all arch OBJS declarations into arch subdirectory Makefiles. 2012-04-12 21:30:13 +02:00
Diego Biurrun 7bb3a302fe build: Consistently handle conditional compilation for all optimization OBJS. 2012-04-12 09:00:49 +02:00
Henrik Gramner 729f90e268 x86inc improvements for 64-bit 
Add support for all x86-64 registers
Prefer caller-saved register over callee-saved on WIN64
Support up to 15 function arguments

Also (by Ronald S. Bultje)
Fix up our asm to work with new x86inc.asm.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
 2012-04-11 15:47:00 -04:00
Diego Biurrun 02c39f056a ppc: Add/remove a number of const qualifiers to fix related warnings. 2012-04-09 20:39:33 +02:00
Ronald S. Bultje bc0bdda77b swscale: handle complete dimensions for monoblack/white. 
Fixes bug 269.
 2012-04-04 10:55:50 -07:00
Hans-Kristian Arntzen b991b300f2 Unscaled Planar RGB -> RGB support in swscale. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2012-04-03 13:06:42 -04:00
Diego Biurrun e7e19b15c7 build: Only clean the architecture subdirectory we build for. 
This allows simplifying the Makefiles; it is no longer necessary to register
arch subdirectory Makefiles, just putting them in place is enough.
 2012-03-26 13:29:03 +02:00
Diego Biurrun ad0e31f134 build: prettyprinting cosmetics 2012-03-26 13:00:10 +02:00
Ronald S. Bultje 45fdcc8e2d swscale: convert hscale() to use named arguments. 2012-03-14 20:09:53 -07:00
Ronald S. Bultje aba7a827aa swscale: convert hscale to cpuflags(). 2012-03-14 20:09:53 -07:00
Ronald S. Bultje 9487fb4dea swscale: clip unscaled output intermediates. 
Fixes bug 240, as well as several integer overflows (visible as glitches)
in other scaling output routines, e.g. YUV422.
 2012-03-07 09:35:46 -08:00
Ronald S. Bultje 2254b559cb swscale: make filterPos 32bit. 
Fixes overflows for large image sizes.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-03-06 10:47:41 -08:00
Ronald S. Bultje 1c97b5c4a3 swscale: remove "cpu flags" from -sws_flags description. 2012-03-04 06:52:06 -08:00
Ronald S. Bultje dccb2cd3f9 swscale: make %rep unconditional. 
Fixes pre-processing with latest versions of nasm.
 2012-03-03 20:40:00 -08:00
Ronald S. Bultje 8249a23fc1 swscale: remove now unnecessary hack. 2012-03-03 20:39:59 -08:00
Diego Biurrun 36697be187 swscale: K&R formatting cosmetics for PowerPC code (part II/II) 2012-03-02 02:16:40 +01:00
Ronald S. Bultje 791de61bbb swscale: fix another integer overflow. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-29 11:19:03 -08:00
Ronald S. Bultje 2bb628f870 swscale: fix another integer overflow at large dimensions/rescales. 2012-02-24 15:39:55 -08:00
Ronald S. Bultje 1d8c4af396 swscale: take first/lastline over/underflows into account for MMX. 
Fixes crashes for extremely large resizes (several 100-fold).

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 10:30:08 -08:00
Ronald S. Bultje 491865b57d swscale: fix underflows in firstline calculations for extreme resizes. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 10:30:07 -08:00
Ronald S. Bultje 19a65b5be4 swscale: fix overflows in filterPos[] calculation for large sizes. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-23 10:30:07 -08:00
Ronald S. Bultje 1254022ea7 swscale: fix filtersize clipping. 
if srcW<=2, clip(x, 1, srcW-2) still allows srcW to be < 1.
 2012-02-22 16:54:20 -08:00
Diego Biurrun 89d94b2182 swscale: K&R formatting cosmetics (part I) 2012-02-21 22:53:40 +01:00
Diego Biurrun 72b95764d0 swscale: variable declaration and placement cosmetics 2012-02-21 22:53:37 +01:00
Diego Biurrun 04217de4d6 swscale: K&R formatting cosmetics for PowerPC code (part I/II) 2012-02-21 20:17:57 +01:00
Ronald S. Bultje b18f8cbf3d Revert two swscale commits. 
Revert "swscale: update context offsets after removal of AlpMmxFilter."
(commit a95e3fa90b)
and
Revert "swscale: Remove some write-only variables related to alpha handling."
(commit 9d03cb9fc5).

They broke alpha handling - it's the evil inline asm that still uses that
variable, so it's not truely write-only.
 2012-02-19 13:31:12 -08:00