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Optimize png16 with loongson mmi for 64-bit os

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gxw
2024-01-08 17:46:41 +08:00
committed by Cosmin Truta
parent 6b0d1bd75b
commit ce4b632dd7
9 changed files with 937 additions and 15 deletions
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82
mips/mips_init.c
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@@ -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 */