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Enable libpng NEON optimization in Android build for armeabi-v7a with NEON target

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This commit is contained in:
Andrey Kamaev 2012-08-28 04:54:15 +04:00
parent c6d1421f9b
commit 90a3d227c9
2 changed files with 13 additions and 3 deletions
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12
3rdparty/libpng/CMakeLists.txt vendored
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@ -2,13 +2,23 @@
# CMake file for libpng. See root CMakeLists.txt
#
# ----------------------------------------------------------------------------
project(${PNG_LIBRARY})
if(NEON)
project(${PNG_LIBRARY} ASM)
else()
project(${PNG_LIBRARY})
endif()
ocv_include_directories("${CMAKE_CURRENT_SOURCE_DIR}" ${ZLIB_INCLUDE_DIR})
file(GLOB lib_srcs *.c)
file(GLOB lib_hdrs *.h)
if(NEON)
list(APPEND lib_srcs arm/filter_neon.S)
add_definitions(-DPNG_ARM_NEON)
endif()
# ----------------------------------------------------------------------------------
# Define the library target:
# ----------------------------------------------------------------------------------

4
3rdparty/libpng/pngrutil.c vendored
View File

@ -3662,7 +3662,7 @@ png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row,
#ifdef PNG_ARM_NEON
#ifdef __linux__
#if defined __linux__ && !defined __ANDROID__
#include <stdio.h>
#include <elf.h>
#include <asm/hwcap.h>
@ -3695,7 +3695,7 @@ static int png_have_hwcap(unsigned cap)
static void
png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
{
#ifdef __linux__
#if defined __linux__ && !defined __ANDROID__
if (!png_have_hwcap(HWCAP_NEON))
return;
#endif