mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
Optimize png16 with loongson mmi for 64-bit os
This commit is contained in:
gxw
Cosmin Truta
parent
6b0d1bd75b
commit
ce4b632dd7
@ -227,19 +227,44 @@ if(TARGET_ARCH MATCHES "^(mipsel|mips64el)")
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CACHE STRING "Enable MIPS_MSA optimizations: on|off; on is default")
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set_property(CACHE PNG_MIPS_MSA
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PROPERTY STRINGS ${PNG_MIPS_MSA_POSSIBLE_VALUES})
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list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index)
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if(index EQUAL -1)
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list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index_msa)
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if(index_msa EQUAL -1)
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message(FATAL_ERROR "PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]")
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elseif(NOT PNG_MIPS_MSA STREQUAL "off")
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endif()
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set(PNG_MIPS_MMI_POSSIBLE_VALUES on off)
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set(PNG_MIPS_MMI "on"
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CACHE STRING "Enable MIPS_MMI optimizations: on|off; on is default")
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set_property(CACHE PNG_MIPS_MMI
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PROPERTY STRINGS ${PNG_MIPS_MMI_POSSIBLE_VALUES})
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list(FIND PNG_MIPS_MMI_POSSIBLE_VALUES ${PNG_MIPS_MMI} index_mmi)
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if(index_mmi EQUAL -1)
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message(FATAL_ERROR "PNG_MIPS_MMI must be one of [${PNG_MIPS_MMI_POSSIBLE_VALUES}]")
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endif()
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if(PNG_MIPS_MSA STREQUAL "on" AND PNG_MIPS_MMI STREQUAL "on")
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set(libpng_mips_sources
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mips/mips_init.c
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mips/filter_msa_intrinsics.c
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mips/filter_mmi_inline_assembly.c)
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add_definitions(-DPNG_MIPS_MSA_OPT=2)
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add_definitions(-DPNG_MIPS_MMI_OPT=1)
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elseif(PNG_MIPS_MSA STREQUAL "on")
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set(libpng_mips_sources
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mips/mips_init.c
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mips/filter_msa_intrinsics.c)
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if(PNG_MIPS_MSA STREQUAL "on")
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add_definitions(-DPNG_MIPS_MSA_OPT=2)
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endif()
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else()
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add_definitions(-DPNG_MIPS_MSA_OPT=2)
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add_definitions(-DPNG_MIPS_MMI_OPT=0)
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elseif(PNG_MIPS_MMI STREQUAL "on")
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set(libpng_mips_sources
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mips/mips_init.c
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mips/filter_mmi_inline_assembly.c)
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add_definitions(-DPNG_MIPS_MSA_OPT=0)
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endif()
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add_definitions(-DPNG_MIPS_MMI_OPT=1)
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else()
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add_definitions(-DPNG_MIPS_MSA_OPT=0)
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add_definitions(-DPNG_MIPS_MMI_OPT=0)
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endif()
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endif()
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else(PNG_HARDWARE_OPTIMIZATIONS)
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@ -117,6 +117,13 @@ libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += mips/mips_init.c\
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mips/filter_msa_intrinsics.c
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endif
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if PNG_MIPS_MMI
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if !PNG_MIPS_MSA
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += mips/mips_init.c
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endif
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += mips/filter_mmi_inline_assembly.c
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endif
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if PNG_INTEL_SSE
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libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += intel/intel_init.c\
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intel/filter_sse2_intrinsics.c
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51
configure.ac
51
configure.ac
@ -328,6 +328,9 @@ AC_ARG_ENABLE([hardware-optimizations],
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enable_mips_msa=no
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AC_DEFINE([PNG_MIPS_MSA_OPT], [0],
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[Disable MIPS_MSA optimizations])
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enable_mips_mmi=no
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AC_DEFINE([PNG_MIPS_MMI_OPT], [0],
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[Disable MIPS_MMI optimizations])
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enable_powerpc_vsx=no
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AC_DEFINE([PNG_POWERPC_VSX_OPT], [0],
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[Disable POWERPC VSX optimizations])
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@ -347,7 +350,10 @@ AC_ARG_ENABLE([hardware-optimizations],
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[Enable ARM_NEON optimizations])
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;;
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mipsel*|mips64el*)
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enable_mips_mmi=yes
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enable_mips_msa=yes
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AC_DEFINE([PNG_MIPS_MMI_OPT], [1],
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[Enable MIPS_MMI optimizations])
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AC_DEFINE([PNG_MIPS_MSA_OPT], [2],
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[Enable MIPS_MSA optimizations])
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;;
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@ -461,6 +467,51 @@ AM_CONDITIONAL([PNG_MIPS_MSA],
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mipsel*|mips64el*) : ;;
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esac])
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# MIPS
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# ===
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#
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# MIPS MMI (SIMD) support.
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AC_ARG_ENABLE([mips-mmi],
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AS_HELP_STRING([[[--enable-mips-mmi]]],
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[Enable MIPS MMI optimizations: =no/off, check, api, yes/on:]
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[no/off: disable the optimizations; check: use internal checking code]
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[(deprecated and poorly supported); api: disable by default, enable by]
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[a call to png_set_option; yes/on: turn on unconditionally.]
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[If not specified: determined by the compiler.]),
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[case "$enableval" in
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no|off)
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# disable the default enabling on __mips_mmi systems:
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AC_DEFINE([PNG_MIPS_MMI_OPT], [0],
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[Disable MIPS MMI optimizations])
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# Prevent inclusion of the assembler files below:
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enable_mips_mmi=no;;
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check)
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AC_DEFINE([PNG_MIPS_MMI_CHECK_SUPPORTED], [],
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[Check for MIPS MMI support at run-time]);;
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api)
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AC_DEFINE([PNG_MIPS_MMI_API_SUPPORTED], [],
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[Turn on MIPS MMI optimizations at run-time]);;
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yes|on)
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AC_DEFINE([PNG_MIPS_MMI_OPT], [1],
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[Enable MIPS MMI optimizations])
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AC_MSG_WARN([--enable-mips-mmi: please specify 'check' or 'api', if]
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[you want the optimizations unconditionally pass '-mloongson-mmi -march=loongson3a']
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[to the compiler.]);;
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*)
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AC_MSG_ERROR([--enable-mips-mmi=${enable_mips_mmi}: invalid value])
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esac])
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# Add MIPS specific files to all builds where the host_cpu is mips ('mips*') or
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# where MIPS optimizations were explicitly requested (this allows a fallback if a
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# future host CPU does not match 'mips*')
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AM_CONDITIONAL([PNG_MIPS_MMI],
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[test "$enable_mips_mmi" != 'no' &&
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case "$host_cpu" in
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mipsel*|mips64el*) :;;
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esac])
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# INTEL
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# =====
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#
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140
contrib/mips-mmi/linux.c
Normal file
140
contrib/mips-mmi/linux.c
Normal file
@ -0,0 +1,140 @@
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/* contrib/mips-mmi/linux.c
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*
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* Written by guxiwei 2023
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*
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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* and license in png.h
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*
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/auxv.h>
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/*
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* parse_r var, r - Helper assembler macro for parsing register names.
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*
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* This converts the register name in $n form provided in \r to the
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* corresponding register number, which is assigned to the variable \var. It is
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* needed to allow explicit encoding of instructions in inline assembly where
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* registers are chosen by the compiler in $n form, allowing us to avoid using
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* fixed register numbers.
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*
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* It also allows newer instructions (not implemented by the assembler) to be
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* transparently implemented using assembler macros, instead of needing separate
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* cases depending on toolchain support.
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*
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* Simple usage example:
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* __asm__ __volatile__("parse_r __rt, %0\n\t"
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* ".insn\n\t"
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* "# di %0\n\t"
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* ".word (0x41606000 | (__rt << 16))"
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* : "=r" (status);
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*/
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/* Match an individual register number and assign to \var */
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#define _IFC_REG(n) \
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".ifc \\r, $" #n "\n\t" \
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"\\var = " #n "\n\t" \
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".endif\n\t"
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__asm__(".macro parse_r var r\n\t"
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"\\var = -1\n\t"
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_IFC_REG(0) _IFC_REG(1) _IFC_REG(2) _IFC_REG(3)
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_IFC_REG(4) _IFC_REG(5) _IFC_REG(6) _IFC_REG(7)
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_IFC_REG(8) _IFC_REG(9) _IFC_REG(10) _IFC_REG(11)
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_IFC_REG(12) _IFC_REG(13) _IFC_REG(14) _IFC_REG(15)
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_IFC_REG(16) _IFC_REG(17) _IFC_REG(18) _IFC_REG(19)
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_IFC_REG(20) _IFC_REG(21) _IFC_REG(22) _IFC_REG(23)
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_IFC_REG(24) _IFC_REG(25) _IFC_REG(26) _IFC_REG(27)
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_IFC_REG(28) _IFC_REG(29) _IFC_REG(30) _IFC_REG(31)
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".iflt \\var\n\t"
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".error \"Unable to parse register name \\r\"\n\t"
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".endif\n\t"
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".endm");
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#define HWCAP_LOONGSON_CPUCFG (1 << 14)
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static int cpucfg_available(void)
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{
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return getauxval(AT_HWCAP) & HWCAP_LOONGSON_CPUCFG;
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}
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static int strstart(const char *str, const char *pfx, const char **ptr)
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{
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while (*pfx && *pfx == *str) {
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pfx++;
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str++;
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}
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if (!*pfx && ptr)
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*ptr = str;
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return !*pfx;
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}
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/* Most toolchains have no CPUCFG support yet */
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static uint32_t read_cpucfg(uint32_t reg)
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{
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uint32_t __res;
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__asm__ __volatile__(
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"parse_r __res,%0\n\t"
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"parse_r reg,%1\n\t"
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".insn \n\t"
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".word (0xc8080118 | (reg << 21) | (__res << 11))\n\t"
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:"=r"(__res)
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:"r"(reg)
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:
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);
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return __res;
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}
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#define LOONGSON_CFG1 0x1
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#define LOONGSON_CFG1_MMI (1 << 4)
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static int cpu_flags_cpucfg(void)
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{
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int flags = 0;
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uint32_t cfg1 = read_cpucfg(LOONGSON_CFG1);
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if (cfg1 & LOONGSON_CFG1_MMI)
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flags = 1;
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return flags;
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}
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static int cpu_flags_cpuinfo(void)
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{
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FILE *f = fopen("/proc/cpuinfo", "r");
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char buf[200];
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int flags = 0;
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if (!f)
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return flags;
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while (fgets(buf, sizeof(buf), f)) {
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/* Legacy kernel may not export MMI in ASEs implemented */
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if (strstart(buf, "cpu model", NULL)) {
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if (strstr(buf, "Loongson-3 "))
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flags = 1;
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break;
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}
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if (strstart(buf, "ASEs implemented", NULL)) {
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if (strstr(buf, " loongson-mmi"))
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flags = 1;
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break;
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}
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}
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fclose(f);
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return flags;
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}
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static int png_have_mmi()
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{
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if (cpucfg_available())
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return cpu_flags_cpucfg();
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else
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return cpu_flags_cpuinfo();
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return 0;
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}
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524
mips/filter_mmi_inline_assembly.c
Normal file
524
mips/filter_mmi_inline_assembly.c
Normal file
@ -0,0 +1,524 @@
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/* filter_mmi_intrinsics.c - MMI optimized filter functions
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*
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* Written by zhanglixia and guxiwei
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*
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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* and license in png.h
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*/
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#include "../pngpriv.h"
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#ifdef PNG_READ_SUPPORTED
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#if PNG_MIPS_MMI_IMPLEMENTATION == 2 /* Inline Assembly */
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/* Functions in this file look at most 3 pixels (a,b,c) to predict the 4th (d).
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* They're positioned like this:
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* prev: c b
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* row: a d
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* The Sub filter predicts d=a, Avg d=(a+b)/2, and Paeth predicts d to be
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* whichever of a, b, or c is closest to p=a+b-c.
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*/
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void png_read_filter_row_up_mmi(png_row_infop row_info, png_bytep row,
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png_const_bytep prev_row)
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{
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int istop = row_info->rowbytes;
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double rp,pp;
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__asm__ volatile (
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"1: \n\t"
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"ldc1 %[rp], 0x00(%[row]) \n\t"
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"ldc1 %[pp], 0x00(%[prev_row]) \n\t"
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"paddb %[rp], %[rp], %[pp] \n\t"
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"sdc1 %[rp], 0x00(%[row]) \n\t"
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"daddiu %[row], %[row], 0x08 \n\t"
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"daddiu %[prev_row], %[prev_row], 0x08 \n\t"
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"daddiu %[istop], %[istop], -0x08 \n\t"
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"bgtz %[istop], 1b \n\t"
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: [rp]"=&f"(rp), [pp]"=&f"(pp)
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: [row]"r"(row), [prev_row]"r"(prev_row),
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[istop]"r"(istop)
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: "memory"
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);
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}
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void png_read_filter_row_sub3_mmi(png_row_infop row_info, png_bytep row,
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png_const_bytep prev)
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{
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int istop = row_info->rowbytes;
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double rp, pp, dest;
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double eight, sixteen, twenty_four, forty_eight;
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double tmp0;
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double ftmp[2];
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__asm__ volatile (
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"li %[tmp0], 0x08 \n\t"
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"dmtc1 %[tmp0], %[eight] \n\t"
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"li %[tmp0], 0x10 \n\t"
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"dmtc1 %[tmp0], %[sixteen] \n\t"
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"li %[tmp0], 0x18 \n\t"
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"dmtc1 %[tmp0], %[twenty_four] \n\t"
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"li %[tmp0], 0x30 \n\t"
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"dmtc1 %[tmp0], %[forty_eight] \n\t"
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"xor %[dest], %[dest], %[dest] \n\t"
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"1: \n\t"
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"gsldrc1 %[rp], 0x00(%[row]) \n\t"
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"gsldlc1 %[rp], 0x07(%[row]) \n\t"
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"gsldrc1 %[pp], 0x08(%[row]) \n\t"
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"gsldlc1 %[pp], 0x0f(%[row]) \n\t"
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"paddb %[ftmp0], %[dest], %[rp] \n\t"
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"swc1 %[ftmp0], 0x00(%[row]) \n\t"
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"dsrl %[ftmp1], %[rp], %[twenty_four] \n\t"
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"paddb %[dest], %[ftmp1], %[ftmp0] \n\t"
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"gsswrc1 %[dest], 0x03(%[row]) \n\t"
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"gsswlc1 %[dest], 0x06(%[row]) \n\t"
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"dsrl %[ftmp0], %[rp], %[forty_eight] \n\t"
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"dsll %[ftmp1], %[pp], %[sixteen] \n\t"
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"or %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
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"paddb %[dest], %[dest], %[ftmp0] \n\t"
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"gsswrc1 %[dest], 0x06(%[row]) \n\t"
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"gsswlc1 %[dest], 0x09(%[row]) \n\t"
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"dsrl %[ftmp0], %[pp], %[eight] \n\t"
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"paddb %[dest], %[dest], %[ftmp0] \n\t"
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"gsswrc1 %[dest], 0x09(%[row]) \n\t"
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"daddiu %[row], %[row], 0x0c \n\t"
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"daddiu %[istop], %[istop], -0x0c \n\t"
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"bgtz %[istop], 1b \n\t"
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: [rp]"=&f"(rp), [pp]"=&f"(pp), [dest]"=&f"(dest),
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[tmp0]"=&r"(tmp0), [ftmp0]"=&f"(ftmp[0]),
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[ftmp1]"=&f"(ftmp[1]), [eight]"=&f"(eight),
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[sixteen]"=&f"(sixteen), [twenty_four]"=&f"(twenty_four),
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[forty_eight]"=&f"(forty_eight)
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: [row]"r"(row), [istop]"r"(istop)
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: "memory"
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);
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PNG_UNUSED(prev)
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}
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void png_read_filter_row_sub4_mmi(png_row_infop row_info, png_bytep row,
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png_const_bytep prev)
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{
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/* The Sub filter predicts each pixel as the previous pixel, a.
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* There is no pixel to the left of the first pixel. It's encoded directly.
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* That works with our main loop if we just say that left pixel was zero.
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*/
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int istop = row_info->rowbytes;
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double rp,pp;
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__asm__ volatile (
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"1: \n\t"
|
||||
"lwc1 %[pp], 0x00(%[row]) \n\t"
|
||||
"lwc1 %[rp], 0x04(%[row]) \n\t"
|
||||
"paddb %[rp], %[rp], %[pp] \n\t"
|
||||
"swc1 %[rp], 0x04(%[row]) \n\t"
|
||||
|
||||
"daddiu %[row], %[row], 0x04 \n\t"
|
||||
"daddiu %[istop], %[istop], -0x04 \n\t"
|
||||
"bgtz %[istop], 1b \n\t"
|
||||
: [rp]"=&f"(rp), [pp]"=&f"(pp)
|
||||
: [row]"r"(row), [istop]"r"(istop)
|
||||
: "memory"
|
||||
);
|
||||
|
||||
PNG_UNUSED(prev)
|
||||
}
|
||||
|
||||
void png_read_filter_row_avg3_mmi(png_row_infop row_info, png_bytep row,
|
||||
png_const_bytep prev)
|
||||
{
|
||||
int istop = row_info->rowbytes;
|
||||
double rp, pp, rp1, pp1;
|
||||
double tmp0;
|
||||
double ftmp[3];
|
||||
double one, dest;
|
||||
double eight, sixteen, twenty_four, forty_eight;
|
||||
|
||||
__asm__ volatile (
|
||||
"li %[tmp0], 0x08 \n\t"
|
||||
"dmtc1 %[tmp0], %[eight] \n\t"
|
||||
"li %[tmp0], 0x10 \n\t"
|
||||
"dmtc1 %[tmp0], %[sixteen] \n\t"
|
||||
"li %[tmp0], 0x18 \n\t"
|
||||
"dmtc1 %[tmp0], %[twenty_four] \n\t"
|
||||
"li %[tmp0], 0x30 \n\t"
|
||||
"dmtc1 %[tmp0], %[forty_eight] \n\t"
|
||||
"xor %[dest], %[dest], %[dest] \n\t"
|
||||
|
||||
"li %[tmp0], 0x01 \n\t"
|
||||
"ins %[tmp0], %[tmp0], 8, 8 \n\t"
|
||||
"dmtc1 %[tmp0], %[one] \n\t"
|
||||
"pshufh %[one], %[one], %[dest] \n\t"
|
||||
|
||||
"1: \n\t"
|
||||
"gsldrc1 %[rp], 0x00(%[row]) \n\t"
|
||||
"gsldlc1 %[rp], 0x07(%[row]) \n\t"
|
||||
"gsldrc1 %[pp], 0x00(%[prev]) \n\t"
|
||||
"gsldlc1 %[pp], 0x07(%[prev]) \n\t"
|
||||
"gsldrc1 %[rp1], 0x08(%[row]) \n\t"
|
||||
"gsldlc1 %[rp1], 0x0f(%[row]) \n\t"
|
||||
"gsldrc1 %[pp1], 0x08(%[prev]) \n\t"
|
||||
"gsldlc1 %[pp1], 0x0f(%[prev]) \n\t"
|
||||
|
||||
"xor %[ftmp0], %[pp], %[dest] \n\t"
|
||||
"pavgb %[ftmp1], %[pp], %[dest] \n\t"
|
||||
"and %[ftmp0], %[ftmp0], %[one] \n\t"
|
||||
"psubb %[ftmp1], %[ftmp1], %[ftmp0] \n\t"
|
||||
"paddb %[dest], %[rp], %[ftmp1] \n\t"
|
||||
"swc1 %[dest], 0x00(%[row]) \n\t"
|
||||
|
||||
"dsrl %[ftmp0], %[rp], %[twenty_four] \n\t"
|
||||
"dsrl %[ftmp1], %[pp], %[twenty_four] \n\t"
|
||||
|
||||
"xor %[ftmp2], %[ftmp1], %[dest] \n\t"
|
||||
"pavgb %[ftmp1], %[ftmp1], %[dest] \n\t"
|
||||
"and %[ftmp2], %[ftmp2], %[one] \n\t"
|
||||
"psubb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
|
||||
"paddb %[dest], %[ftmp0], %[ftmp1] \n\t"
|
||||
"gsswrc1 %[dest], 0x03(%[row]) \n\t"
|
||||
"gsswlc1 %[dest], 0x06(%[row]) \n\t"
|
||||
|
||||
"dsrl %[ftmp0], %[rp], %[forty_eight] \n\t"
|
||||
"dsll %[ftmp1], %[rp1], %[sixteen] \n\t"
|
||||
"or %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
|
||||
"dsrl %[ftmp2], %[pp], %[forty_eight] \n\t"
|
||||
"dsll %[ftmp1], %[pp1], %[sixteen] \n\t"
|
||||
"or %[ftmp1], %[ftmp2], %[ftmp1] \n\t"
|
||||
|
||||
"xor %[ftmp2], %[ftmp1], %[dest] \n\t"
|
||||
"pavgb %[ftmp1], %[ftmp1], %[dest] \n\t"
|
||||
"and %[ftmp2], %[ftmp2], %[one] \n\t"
|
||||
"psubb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
|
||||
"paddb %[dest], %[ftmp0], %[ftmp1] \n\t"
|
||||
"gsswrc1 %[dest], 0x06(%[row]) \n\t"
|
||||
"gsswlc1 %[dest], 0x09(%[row]) \n\t"
|
||||
|
||||
"dsrl %[ftmp0], %[rp1], %[eight] \n\t"
|
||||
"dsrl %[ftmp1], %[pp1], %[eight] \n\t"
|
||||
|
||||
"xor %[ftmp2], %[ftmp1], %[dest] \n\t"
|
||||
"pavgb %[ftmp1], %[ftmp1], %[dest] \n\t"
|
||||
"and %[ftmp2], %[ftmp2], %[one] \n\t"
|
||||
"psubb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
|
||||
"paddb %[dest], %[ftmp0], %[ftmp1] \n\t"
|
||||
"gsswrc1 %[dest], 0x09(%[row]) \n\t"
|
||||
"daddiu %[row], %[row], 0x0c \n\t"
|
||||
"daddiu %[prev], %[prev], 0x0c \n\t"
|
||||
"daddiu %[istop], %[istop], -0x0c \n\t"
|
||||
"bgtz %[istop], 1b \n\t"
|
||||
: [rp]"=&f"(rp), [pp]"=&f"(pp), [rp1]"=&f"(rp1),
|
||||
[pp1]"=&f"(pp1), [tmp0]"=&r"(tmp0), [ftmp0]"=&f"(ftmp[0]),
|
||||
[ftmp1]"=&f"(ftmp[1]), [ftmp2]"=&f"(ftmp[2]), [one]"=&f"(one),
|
||||
[dest]"=&f"(dest), [eight]"=&f"(eight), [sixteen]"=&f"(sixteen),
|
||||
[twenty_four]"=&f"(twenty_four), [forty_eight]"=&f"(forty_eight)
|
||||
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
|
||||
: "memory"
|
||||
);
|
||||
}
|
||||
|
||||
void png_read_filter_row_avg4_mmi(png_row_infop row_info, png_bytep row,
|
||||
png_const_bytep prev)
|
||||
{
|
||||
int istop = row_info->rowbytes;
|
||||
double rp,pp;
|
||||
double dest;
|
||||
double ftmp[2];
|
||||
double tmp;
|
||||
|
||||
__asm__ volatile (
|
||||
"xor %[dest], %[dest], %[dest] \n\t"
|
||||
"li %[tmp], 0x01 \n\t"
|
||||
"ins %[tmp], %[tmp], 8, 8 \n\t"
|
||||
"dmtc1 %[tmp], %[ftmp1] \n\t"
|
||||
"pshufh %[ftmp1], %[ftmp1], %[dest] \n\t"
|
||||
|
||||
"1: \n\t"
|
||||
"lwc1 %[rp], 0x00(%[row]) \n\t"
|
||||
"lwc1 %[pp], 0x00(%[prev]) \n\t"
|
||||
"xor %[ftmp0], %[pp], %[dest] \n\t"
|
||||
"pavgb %[pp], %[pp], %[dest] \n\t"
|
||||
"and %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
|
||||
"psubb %[pp], %[pp], %[ftmp0] \n\t"
|
||||
"paddb %[dest], %[rp], %[pp] \n\t"
|
||||
"swc1 %[dest], 0x00(%[row]) \n\t"
|
||||
"daddiu %[row], %[row], 0x04 \n\t"
|
||||
"daddiu %[prev], %[prev], 0x04 \n\t"
|
||||
"daddiu %[istop], %[istop], -0x04 \n\t"
|
||||
"bgtz %[istop], 1b \n\t"
|
||||
: [rp]"=&f"(rp), [pp]"=&f"(pp), [ftmp0]"=&f"(ftmp[0]),
|
||||
[ftmp1]"=&f"(ftmp[1]), [dest]"=&f"(dest), [tmp]"=&r"(tmp)
|
||||
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
|
||||
: "memory"
|
||||
);
|
||||
}
|
||||
|
||||
void png_read_filter_row_paeth3_mmi(png_row_infop row_info, png_bytep row,
|
||||
png_const_bytep prev)
|
||||
{
|
||||
/* Paeth tries to predict pixel d using the pixel to the left of it, a,
|
||||
* and two pixels from the previous row, b and c:
|
||||
* prev: c b
|
||||
* row: a d
|
||||
* The Paeth function predicts d to be whichever of a, b, or c is nearest to
|
||||
* p=a+b-c.
|
||||
*
|
||||
* The first pixel has no left context, and so uses an Up filter, p = b.
|
||||
* This works naturally with our main loop's p = a+b-c if we force a and c
|
||||
* to zero.
|
||||
* Here we zero b and d, which become c and a respectively at the start of
|
||||
* the loop.
|
||||
*/
|
||||
int istop = row_info->rowbytes;
|
||||
double rp, pp, rp1, pp1, zero;
|
||||
double a, b, c, d, pa, pb, pc;
|
||||
double tmp0;
|
||||
double ftmp[3];
|
||||
double eight, sixteen, twenty_four, forty_eight;
|
||||
|
||||
__asm__ volatile (
|
||||
"xor %[a], %[a], %[a] \n\t"
|
||||
"xor %[c], %[c], %[c] \n\t"
|
||||
"xor %[zero], %[zero], %[zero] \n\t"
|
||||
"li %[tmp0], 0x08 \n\t"
|
||||
"dmtc1 %[tmp0], %[eight] \n\t"
|
||||
"li %[tmp0], 0x10 \n\t"
|
||||
"dmtc1 %[tmp0], %[sixteen] \n\t"
|
||||
"li %[tmp0], 0x18 \n\t"
|
||||
"dmtc1 %[tmp0], %[twenty_four] \n\t"
|
||||
"li %[tmp0], 0x30 \n\t"
|
||||
"dmtc1 %[tmp0], %[forty_eight] \n\t"
|
||||
|
||||
"1: \n\t"
|
||||
"gsldrc1 %[rp], 0x00(%[row]) \n\t"
|
||||
"gsldlc1 %[rp], 0x07(%[row]) \n\t"
|
||||
"gsldrc1 %[pp], 0x00(%[prev]) \n\t"
|
||||
"gsldlc1 %[pp], 0x07(%[prev]) \n\t"
|
||||
"gsldrc1 %[rp1], 0x08(%[row]) \n\t"
|
||||
"gsldlc1 %[rp1], 0x0f(%[row]) \n\t"
|
||||
"gsldrc1 %[pp1], 0x08(%[prev]) \n\t"
|
||||
"gsldlc1 %[pp1], 0x0f(%[prev]) \n\t"
|
||||
|
||||
"punpcklbh %[b], %[pp], %[zero] \n\t"
|
||||
"punpcklbh %[d], %[rp], %[zero] \n\t"
|
||||
"packushb %[ftmp0], %[c], %[c] \n\t"
|
||||
"packushb %[ftmp1], %[a], %[a] \n\t"
|
||||
"pasubub %[pa], %[pp], %[ftmp0] \n\t"
|
||||
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
|
||||
"psubh %[ftmp0], %[b], %[c] \n\t"
|
||||
"psubh %[ftmp1], %[a], %[c] \n\t"
|
||||
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
|
||||
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
|
||||
"xor %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"psubh %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"punpcklbh %[pa], %[pa], %[zero] \n\t"
|
||||
"punpcklbh %[pb], %[pb], %[zero] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
|
||||
"and %[ftmp1], %[b], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"pminsh %[pa], %[pa], %[pb] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
|
||||
"and %[ftmp1], %[c], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"paddb %[a], %[a], %[d] \n\t"
|
||||
"packushb %[d], %[a], %[a] \n\t"
|
||||
"punpcklbh %[c], %[pp], %[zero] \n\t"
|
||||
"swc1 %[d], 0x00(%[row]) \n\t"
|
||||
|
||||
"dsrl %[ftmp0], %[rp], %[twenty_four] \n\t"
|
||||
"dsrl %[ftmp2], %[pp], %[twenty_four] \n\t"
|
||||
|
||||
"punpcklbh %[b], %[ftmp2], %[zero] \n\t"
|
||||
"punpcklbh %[d], %[ftmp0], %[zero] \n\t"
|
||||
"packushb %[ftmp0], %[c], %[c] \n\t"
|
||||
"packushb %[ftmp1], %[a], %[a] \n\t"
|
||||
"pasubub %[pa], %[ftmp2], %[ftmp0] \n\t"
|
||||
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
|
||||
"psubh %[ftmp0], %[b], %[c] \n\t"
|
||||
"psubh %[ftmp1], %[a], %[c] \n\t"
|
||||
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
|
||||
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
|
||||
"xor %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"psubh %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"punpcklbh %[pa], %[pa], %[zero] \n\t"
|
||||
"punpcklbh %[pb], %[pb], %[zero] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
|
||||
"and %[ftmp1], %[b], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"pminsh %[pa], %[pa], %[pb] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
|
||||
"and %[ftmp1], %[c], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"paddb %[a], %[a], %[d] \n\t"
|
||||
"packushb %[d], %[a], %[a] \n\t"
|
||||
"punpcklbh %[c], %[ftmp2], %[zero] \n\t"
|
||||
"gsswrc1 %[d], 0x03(%[row]) \n\t"
|
||||
"gsswlc1 %[d], 0x06(%[row]) \n\t"
|
||||
|
||||
"dsrl %[ftmp0], %[rp], %[forty_eight] \n\t"
|
||||
"dsll %[ftmp1], %[rp1], %[sixteen] \n\t"
|
||||
"or %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
|
||||
"dsrl %[ftmp2], %[pp], %[forty_eight] \n\t"
|
||||
"dsll %[ftmp1], %[pp1], %[sixteen] \n\t"
|
||||
"or %[ftmp2], %[ftmp2], %[ftmp1] \n\t"
|
||||
|
||||
"punpcklbh %[b], %[ftmp2], %[zero] \n\t"
|
||||
"punpcklbh %[d], %[ftmp0], %[zero] \n\t"
|
||||
"packushb %[ftmp0], %[c], %[c] \n\t"
|
||||
"packushb %[ftmp1], %[a], %[a] \n\t"
|
||||
"pasubub %[pa], %[ftmp2], %[ftmp0] \n\t"
|
||||
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
|
||||
"psubh %[ftmp0], %[b], %[c] \n\t"
|
||||
"psubh %[ftmp1], %[a], %[c] \n\t"
|
||||
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
|
||||
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
|
||||
"xor %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"psubh %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"punpcklbh %[pa], %[pa], %[zero] \n\t"
|
||||
"punpcklbh %[pb], %[pb], %[zero] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
|
||||
"and %[ftmp1], %[b], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"pminsh %[pa], %[pa], %[pb] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
|
||||
"and %[ftmp1], %[c], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"paddb %[a], %[a], %[d] \n\t"
|
||||
"packushb %[d], %[a], %[a] \n\t"
|
||||
"punpcklbh %[c], %[ftmp2], %[zero] \n\t"
|
||||
"gsswrc1 %[d], 0x06(%[row]) \n\t"
|
||||
"gsswlc1 %[d], 0x09(%[row]) \n\t"
|
||||
|
||||
"dsrl %[ftmp0], %[rp1], %[eight] \n\t"
|
||||
"dsrl %[ftmp2], %[pp1], %[eight] \n\t"
|
||||
|
||||
"punpcklbh %[b], %[ftmp2], %[zero] \n\t"
|
||||
"punpcklbh %[d], %[ftmp0], %[zero] \n\t"
|
||||
"packushb %[ftmp0], %[c], %[c] \n\t"
|
||||
"packushb %[ftmp1], %[a], %[a] \n\t"
|
||||
"pasubub %[pa], %[ftmp2], %[ftmp0] \n\t"
|
||||
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
|
||||
"psubh %[ftmp0], %[b], %[c] \n\t"
|
||||
"psubh %[ftmp1], %[a], %[c] \n\t"
|
||||
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
|
||||
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
|
||||
"xor %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"psubh %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"punpcklbh %[pa], %[pa], %[zero] \n\t"
|
||||
"punpcklbh %[pb], %[pb], %[zero] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
|
||||
"and %[ftmp1], %[b], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"pminsh %[pa], %[pa], %[pb] \n\t"
|
||||
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
|
||||
"and %[ftmp1], %[c], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"paddb %[a], %[a], %[d] \n\t"
|
||||
"packushb %[d], %[a], %[a] \n\t"
|
||||
"punpcklbh %[c], %[ftmp2], %[zero] \n\t"
|
||||
"gsswrc1 %[d], 0x09(%[row]) \n\t"
|
||||
|
||||
"daddiu %[row], %[row], 0x0c \n\t"
|
||||
"daddiu %[prev], %[prev], 0x0c \n\t"
|
||||
"daddiu %[istop], %[istop], -0x0c \n\t"
|
||||
"bgtz %[istop], 1b \n\t"
|
||||
: [rp]"=&f"(rp), [pp]"=&f"(pp), [rp1]"=&f"(rp1), [pp1]"=&f"(pp1),
|
||||
[zero]"=&f"(zero), [a]"=&f"(a),[b]"=&f"(b), [c]"=&f"(c),
|
||||
[d]"=&f"(d), [pa]"=&f"(pa), [pb]"=&f"(pb), [pc]"=&f"(pc),
|
||||
[tmp0]"=&r"(tmp0), [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
|
||||
[ftmp2]"=&f"(ftmp[2]), [eight]"=&f"(eight), [sixteen]"=&f"(sixteen),
|
||||
[twenty_four]"=&f"(twenty_four), [forty_eight]"=&f"(forty_eight)
|
||||
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
|
||||
: "memory"
|
||||
);
|
||||
}
|
||||
|
||||
void png_read_filter_row_paeth4_mmi(png_row_infop row_info, png_bytep row,
|
||||
png_const_bytep prev)
|
||||
{
|
||||
/* Paeth tries to predict pixel d using the pixel to the left of it, a,
|
||||
* and two pixels from the previous row, b and c:
|
||||
* prev: c b
|
||||
* row: a d
|
||||
* The Paeth function predicts d to be whichever of a, b, or c is nearest to
|
||||
* p=a+b-c.
|
||||
*
|
||||
* The first pixel has no left context, and so uses an Up filter, p = b.
|
||||
* This works naturally with our main loop's p = a+b-c if we force a and c
|
||||
* to zero.
|
||||
* Here we zero b and d, which become c and a respectively at the start of
|
||||
* the loop.
|
||||
*/
|
||||
int istop = row_info->rowbytes;
|
||||
double rp, pp, zero;
|
||||
double a, b, c, d, pa, pb, pc;
|
||||
double ftmp[2];
|
||||
|
||||
__asm__ volatile (
|
||||
"xor %[a], %[a], %[a] \n\t"
|
||||
"xor %[c], %[c], %[c] \n\t"
|
||||
"xor %[zero], %[zero], %[zero] \n\t"
|
||||
|
||||
"1: \n\t"
|
||||
"lwc1 %[rp], 0x00(%[row]) \n\t"
|
||||
"lwc1 %[pp], 0x00(%[prev]) \n\t"
|
||||
"punpcklbh %[b], %[pp], %[zero] \n\t"
|
||||
"punpcklbh %[d], %[rp], %[zero] \n\t"
|
||||
|
||||
"packushb %[ftmp0], %[c], %[c] \n\t"
|
||||
"packushb %[ftmp1], %[a], %[a] \n\t"
|
||||
"pasubub %[pa], %[pp], %[ftmp0] \n\t"
|
||||
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
|
||||
"psubh %[ftmp0], %[b], %[c] \n\t"
|
||||
"psubh %[ftmp1], %[a], %[c] \n\t"
|
||||
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
|
||||
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
|
||||
"xor %[pc], %[pc], %[ftmp0] \n\t"
|
||||
"psubh %[pc], %[pc], %[ftmp0] \n\t"
|
||||
|
||||
"punpcklbh %[pa], %[pa], %[zero] \n\t"
|
||||
"punpcklbh %[pb], %[pb], %[zero] \n\t"
|
||||
|
||||
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
|
||||
"and %[ftmp1], %[b], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"pminsh %[pa], %[pa], %[pb] \n\t"
|
||||
|
||||
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
|
||||
"and %[ftmp1], %[c], %[ftmp0] \n\t"
|
||||
"pandn %[a], %[ftmp0], %[a] \n\t"
|
||||
"or %[a], %[a], %[ftmp1] \n\t"
|
||||
"paddb %[a], %[a], %[d] \n\t"
|
||||
"packushb %[d], %[a], %[a] \n\t"
|
||||
"swc1 %[d], 0x00(%[row]) \n\t"
|
||||
"punpcklbh %[c], %[pp], %[zero] \n\t"
|
||||
"daddiu %[row], %[row], 0x04 \n\t"
|
||||
"daddiu %[prev], %[prev], 0x04 \n\t"
|
||||
"daddiu %[istop], %[istop], -0x04 \n\t"
|
||||
"bgtz %[istop], 1b \n\t"
|
||||
: [rp]"=&f"(rp), [pp]"=&f"(pp), [zero]"=&f"(zero),
|
||||
[a]"=&f"(a), [b]"=&f"(b), [c]"=&f"(c), [d]"=&f"(d),
|
||||
[pa]"=&f"(pa), [pb]"=&f"(pb), [pc]"=&f"(pc),
|
||||
[ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1])
|
||||
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
|
||||
: "memory"
|
||||
);
|
||||
}
|
||||
|
||||
#endif /* PNG_MIPS_MMI_IMPLEMENTATION > 0 */
|
||||
#endif /* READ */
|
||||
@ -4,6 +4,7 @@
|
||||
* Copyright (c) 2018 Cosmin Truta
|
||||
* Copyright (c) 2016 Glenn Randers-Pehrson
|
||||
* Written by Mandar Sahastrabuddhe, 2016.
|
||||
* Update by guxiwei, 2023.
|
||||
*
|
||||
* This code is released under the libpng license.
|
||||
* For conditions of distribution and use, see the disclaimer
|
||||
@ -20,8 +21,9 @@
|
||||
|
||||
#ifdef PNG_READ_SUPPORTED
|
||||
|
||||
#if PNG_MIPS_MSA_OPT > 0
|
||||
#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED /* Do run-time checks */
|
||||
#if PNG_MIPS_MSA_OPT > 0 || PNG_MIPS_MMI_IMPLEMENTATION > 0
|
||||
|
||||
#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED /* Do MIPS MSA run-time checks */
|
||||
/* WARNING: it is strongly recommended that you do not build libpng with
|
||||
* run-time checks for CPU features if at all possible. In the case of the MIPS
|
||||
* MSA instructions there is no processor-specific way of detecting the
|
||||
@ -51,13 +53,83 @@ static int png_have_msa(png_structp png_ptr);
|
||||
#endif /* PNG_MIPS_MSA_FILE */
|
||||
#endif /* PNG_MIPS_MSA_CHECK_SUPPORTED */
|
||||
|
||||
#ifdef PNG_MIPS_MMI_CHECK_SUPPORTED /* Do MIPS MMI run-times checks */
|
||||
#ifndef PNG_MIPS_MMI_FILE
|
||||
# ifdef __linux__
|
||||
# define PNG_MIPS_MMI_FILE "contrib/mips-mmi/linux.c"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef PNG_MIPS_MMI_FILE
|
||||
|
||||
#include <signal.h> /* for sig_atomic_t */
|
||||
static int png_have_mmi();
|
||||
#include PNG_MIPS_MMI_FILE
|
||||
|
||||
#else /* PNG_MIPS_MMI_FILE */
|
||||
# error "PNG_MIPS_MMI_FILE undefined: no support for run-time MIPS MMI checks"
|
||||
#endif /* PNG_MIPS_MMI_FILE */
|
||||
#endif /* PNG_MIPS_MMI_CHECK_SUPPORTED*/
|
||||
|
||||
#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
|
||||
# error "ALIGNED_MEMORY is required; set: -DPNG_ALIGNED_MEMORY_SUPPORTED"
|
||||
#endif
|
||||
|
||||
/* MIPS supports two optimizations: MMI and MSA. The appropriate
|
||||
* optimization is chosen at runtime
|
||||
*/
|
||||
void
|
||||
png_init_filter_functions_msa(png_structp pp, unsigned int bpp)
|
||||
png_init_filter_functions_mips(png_structp pp, unsigned int bpp)
|
||||
{
|
||||
#if PNG_MIPS_MMI_IMPLEMENTATION > 0
|
||||
#ifdef PNG_MIPS_MMI_API_SUPPORTED
|
||||
switch ((pp->options >> PNG_MIPS_MMI) & 3)
|
||||
{
|
||||
case PNG_OPTION_UNSET:
|
||||
#endif /* PNG_MIPS_MMI_API_SUPPORTED */
|
||||
#ifdef PNG_MIPS_MMI_CHECK_SUPPORTED
|
||||
{
|
||||
static volatile sig_atomic_t no_mmi = -1; /* not checked */
|
||||
|
||||
if (no_mmi < 0)
|
||||
no_mmi = !png_have_mmi();
|
||||
|
||||
if (no_mmi)
|
||||
goto MIPS_MSA_INIT;
|
||||
}
|
||||
#ifdef PNG_MIPS_MMI_API_SUPPORTED
|
||||
break;
|
||||
#endif
|
||||
#endif /* PNG_MIPS_MMI_CHECK_SUPPORTED */
|
||||
|
||||
#ifdef PNG_MIPS_MMI_API_SUPPORTED
|
||||
default: /* OFF or INVALID */
|
||||
goto MIPS_MSA_INIT;
|
||||
|
||||
case PNG_OPTION_ON:
|
||||
/* Option turned on */
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_mmi;
|
||||
if (bpp == 3)
|
||||
{
|
||||
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_mmi;
|
||||
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_mmi;
|
||||
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
|
||||
png_read_filter_row_paeth3_mmi;
|
||||
}
|
||||
else if (bpp == 4)
|
||||
{
|
||||
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_mmi;
|
||||
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_mmi;
|
||||
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
|
||||
png_read_filter_row_paeth4_mmi;
|
||||
}
|
||||
#endif /* PNG_MIPS_MMI_IMPLEMENTATION > 0 */
|
||||
|
||||
MIPS_MSA_INIT:
|
||||
#if PNG_MIPS_MSA_OPT > 0
|
||||
/* The switch statement is compiled in for MIPS_MSA_API, the call to
|
||||
* png_have_msa is compiled in for MIPS_MSA_CHECK. If both are defined
|
||||
* the check is only performed if the API has not set the MSA option on
|
||||
@ -125,6 +197,8 @@ png_init_filter_functions_msa(png_structp pp, unsigned int bpp)
|
||||
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_msa;
|
||||
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth4_msa;
|
||||
}
|
||||
}
|
||||
#endif /* PNG_MIPS_MSA_OPT > 0 */
|
||||
return;
|
||||
}
|
||||
#endif /* PNG_MIPS_MSA_OPT > 0 || PNG_MIPS_MMI_IMPLEMENTATION > 0 */
|
||||
#endif /* READ */
|
||||
|
||||
6
png.h
6
png.h
@ -3208,7 +3208,11 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
|
||||
#ifdef PNG_POWERPC_VSX_API_SUPPORTED
|
||||
# define PNG_POWERPC_VSX 10 /* HARDWARE: PowerPC VSX SIMD instructions supported */
|
||||
#endif
|
||||
#define PNG_OPTION_NEXT 12 /* Next option - numbers must be even */
|
||||
#ifdef PNG_MIPS_MMI_API_SUPPORTED
|
||||
# define PNG_MIPS_MMI 12 /* HARDWARE: MIPS MMI SIMD instructions supported */
|
||||
#endif
|
||||
|
||||
#define PNG_OPTION_NEXT 14 /* Next option - numbers must be even */
|
||||
|
||||
/* Return values: NOTE: there are four values and 'off' is *not* zero */
|
||||
#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */
|
||||
|
||||
52
pngpriv.h
52
pngpriv.h
@ -197,6 +197,16 @@
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef PNG_MIPS_MMI_OPT
|
||||
# ifdef PNG_MIPS_MMI
|
||||
# if defined(__mips_loongson_mmi) && (_MIPS_SIM == _ABI64) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
|
||||
# define PNG_MIPS_MMI_OPT 1
|
||||
# else
|
||||
# define PNG_MIPS_MMI_OPT 0
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef PNG_POWERPC_VSX_OPT
|
||||
# if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__)
|
||||
# define PNG_POWERPC_VSX_OPT 2
|
||||
@ -248,7 +258,7 @@
|
||||
#endif
|
||||
|
||||
#if PNG_MIPS_MSA_OPT > 0
|
||||
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa
|
||||
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_mips
|
||||
# ifndef PNG_MIPS_MSA_IMPLEMENTATION
|
||||
# if defined(__mips_msa)
|
||||
# if defined(__clang__)
|
||||
@ -269,6 +279,22 @@
|
||||
# define PNG_MIPS_MSA_IMPLEMENTATION 0
|
||||
#endif /* PNG_MIPS_MSA_OPT > 0 */
|
||||
|
||||
#if PNG_MIPS_MMI_OPT > 0
|
||||
# ifndef PNG_MIPS_MMI_IMPLEMENTATION
|
||||
# if defined(__mips_loongson_mmi) && (_MIPS_SIM == _ABI64)
|
||||
# define PNG_MIPS_MMI_IMPLEMENTATION 2
|
||||
# else /* !defined __mips_loongson_mmi || _MIPS_SIM != _ABI64 */
|
||||
# define PNG_MIPS_MMI_IMPLEMENTATION 0
|
||||
# endif /* __mips_loongson_mmi && _MIPS_SIM == _ABI64 */
|
||||
# endif /* !PNG_MIPS_MMI_IMPLEMENTATION */
|
||||
|
||||
# if PNG_MIPS_MMI_IMPLEMENTATION > 0
|
||||
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_mips
|
||||
# endif
|
||||
#else
|
||||
# define PNG_INTEL_SSE_IMPLEMENTATION 0
|
||||
#endif /* PNG_MIPS_MMI_OPT > 0 */
|
||||
|
||||
#if PNG_POWERPC_VSX_OPT > 0
|
||||
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
|
||||
# define PNG_POWERPC_VSX_IMPLEMENTATION 1
|
||||
@ -1329,6 +1355,23 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
#endif
|
||||
|
||||
#if PNG_MIPS_MMI_IMPLEMENTATION > 0
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_mmi,(png_row_infop row_info,
|
||||
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_mmi,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_mmi,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_mmi,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_mmi,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_mmi,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_mmi,(png_row_infop
|
||||
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
#endif
|
||||
|
||||
#if PNG_POWERPC_VSX_OPT > 0
|
||||
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info,
|
||||
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
|
||||
@ -2118,10 +2161,15 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon,
|
||||
#endif
|
||||
|
||||
#if PNG_MIPS_MSA_OPT > 0
|
||||
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
|
||||
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_mips,
|
||||
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
|
||||
#endif
|
||||
|
||||
# if PNG_MIPS_MMI_IMPLEMENTATION > 0
|
||||
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_mips,
|
||||
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
|
||||
# endif
|
||||
|
||||
# if PNG_INTEL_SSE_IMPLEMENTATION > 0
|
||||
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
|
||||
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
|
||||
|
||||
@ -256,6 +256,55 @@ option POWERPC_VSX_API disabled enables SET_OPTION,
|
||||
option POWERPC_VSX_CHECK disabled,
|
||||
sets POWERPC_VSX_OPT 1
|
||||
|
||||
# These options are specific to the MIPS MSA hardware optimizations.
|
||||
#
|
||||
# MIPS_MSA_OPT: unset: check at compile time (__mips_msa must be defined by
|
||||
# the compiler, typically as a result of specifying
|
||||
# "-mmsa -mfp64" compiler flags)
|
||||
# 0: disable (even if the CPU supports MSA.)
|
||||
# 1: check at run time (via MIPS_MSA_{API,CHECK})
|
||||
# 2: switch on unconditionally (inadvisable - instead pass
|
||||
# -mmsa -mfp64 to compiler options)
|
||||
# When building libpng avoid using any setting other than '0'; '1' is
|
||||
# set automatically when either 'API' or 'CHECK' are configured in,
|
||||
# '2' should not be necessary as "-mmsa -mfp64" will achieve the same
|
||||
# effect as well as applying MSA optimizations to the rest of the
|
||||
# libpng code.
|
||||
# NOTE: any setting other than '0' requires ALIGNED_MEMORY
|
||||
# MIPS_MSA_API: (PNG_MIPS_MSA == 1) allow the optimization to be switched on
|
||||
# with png_set_option.
|
||||
# MIPS_MSA_CHECK: (PNG_MIPS_MSA == 1) compile a run-time check to see if MSA
|
||||
# extensions are supported.
|
||||
setting MIPS_MSA_OPT
|
||||
option MIPS_MSA_API disabled requires ALIGNED_MEMORY enables SET_OPTION,
|
||||
sets MIPS_MSA_OPT 1
|
||||
option MIPS_MSA_CHECK disabled requires ALIGNED_MEMORY,
|
||||
sets MIPS_MSA_OPT 1
|
||||
|
||||
# These options are specific to the MIPS MMI hardware optimizations.
|
||||
#
|
||||
# MIPS_MMI_OPT: unset: check at compile time (__mips_loongson_mmi must be defined by
|
||||
# the compiler, typically as a result of specifying
|
||||
# "-mloongson-mmi -march=loongson3a" compiler flags)
|
||||
# 0: disable (even if the CPU supports MMI.)
|
||||
# 1: check at run time (via MIPS_MMI_{API,CHECK})
|
||||
# 2: switch on unconditionally (inadvisable - instead pass
|
||||
# -mloongson-mmi -march=loongson3a to compiler options)
|
||||
# When building libpng avoid using any setting other than '0'; '1' is
|
||||
# set automatically when either 'API' or 'CHECK' are configured in,
|
||||
# '2' should not be necessary as "-mloongson-mmi -march=loongson3a" will achieve the same
|
||||
# effect as well as applying MMI optimizations to the rest of the
|
||||
# libpng code.
|
||||
# MIPS_MMI_API: (PNG_MIPS_MMI == 1) allow the optimization to be switched on
|
||||
# with png_set_option
|
||||
# MIPS_MMI_CHECK: (PNG_MIPS_MMI == 1) compile a run-time check to see if MMI
|
||||
# extensions are supported.
|
||||
setting MIPS_MMI_OPT
|
||||
option MIPS_MMI_API disabled requires ALIGNED_MEMORY enables SET_OPTION,
|
||||
sets MIPS_MMI_OPT 1
|
||||
option MIPS_MMI_CHECK disabled requires ALIGNED_MEMORY,
|
||||
sets MIPS_MMI_OPT 1
|
||||
|
||||
|
||||
# These settings configure the default compression level (0-9) and 'strategy';
|
||||
# strategy is as defined by the implementors of zlib. It describes the input
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user