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* [lpng] Adjustment: Update libpng to version 1.6.37.

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This commit is contained in:
Robert MacGregor 2021-10-12 22:04:36 -04:00
parent c0ff69a2e6
commit 2f3215c4fb
475 changed files with 110673 additions and 2682 deletions
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49
Engine/lib/lpng/intel/filter_sse2_intrinsics.c
View file

@ -1,12 +1,11 @@
/* filter_sse2_intrinsics.c - SSE2 optimized filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2016-2017 Glenn Randers-Pehrson
* Written by Mike Klein and Matt Sarett
* Derived from arm/filter_neon_intrinsics.c
*
* Last changed in libpng 1.6.31 [July 27, 2017]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
@ -29,39 +28,25 @@
*/
static __m128i load4(const void* p) {
return _mm_cvtsi32_si128(*(const int*)p);
int tmp;
memcpy(&tmp, p, sizeof(tmp));
return _mm_cvtsi32_si128(tmp);
}
static void store4(void* p, __m128i v) {
*(int*)p = _mm_cvtsi128_si32(v);
int tmp = _mm_cvtsi128_si32(v);
memcpy(p, &tmp, sizeof(int));
}
static __m128i load3(const void* p) {
/* We'll load 2 bytes, then 1 byte,
* then mask them together, and finally load into SSE.
*/
const png_uint_16* p01 = (png_const_uint_16p)p;
const png_byte* p2 = (const png_byte*)(p01+1);
png_uint_32 v012 = (png_uint_32)(*p01)
| (png_uint_32)(*p2) << 16;
return load4(&v012);
png_uint_32 tmp = 0;
memcpy(&tmp, p, 3);
return _mm_cvtsi32_si128(tmp);
}
static void store3(void* p, __m128i v) {
/* We'll pull from SSE as a 32-bit int, then write
* its bottom two bytes, then its third byte.
*/
png_uint_32 v012;
png_uint_16* p01;
png_byte* p2;
store4(&v012, v);
p01 = (png_uint_16p)p;
p2 = (png_byte*)(p01+1);
*p01 = (png_uint_16)v012;
*p2 = (png_byte)(v012 >> 16);
int tmp = _mm_cvtsi128_si32(v);
memcpy(p, &tmp, 3);
}
void png_read_filter_row_sub3_sse2(png_row_infop row_info, png_bytep row,
@ -71,7 +56,7 @@ void png_read_filter_row_sub3_sse2(png_row_infop row_info, png_bytep row,
* There is no pixel to the left of the first pixel. It's encoded directly.
* That works with our main loop if we just say that left pixel was zero.
*/
png_size_t rb;
size_t rb;
__m128i a, d = _mm_setzero_si128();
@ -104,7 +89,7 @@ void png_read_filter_row_sub4_sse2(png_row_infop row_info, png_bytep row,
* There is no pixel to the left of the first pixel. It's encoded directly.
* That works with our main loop if we just say that left pixel was zero.
*/
png_size_t rb;
size_t rb;
__m128i a, d = _mm_setzero_si128();
@ -131,7 +116,7 @@ void png_read_filter_row_avg3_sse2(png_row_infop row_info, png_bytep row,
* perfectly with our loop if we make sure a starts at zero.
*/
png_size_t rb;
size_t rb;
const __m128i zero = _mm_setzero_si128();
@ -185,7 +170,7 @@ void png_read_filter_row_avg4_sse2(png_row_infop row_info, png_bytep row,
* predicted to be half of the pixel above it. So again, this works
* perfectly with our loop if we make sure a starts at zero.
*/
png_size_t rb;
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i b;
__m128i a, d = zero;
@ -257,7 +242,7 @@ void png_read_filter_row_paeth3_sse2(png_row_infop row_info, png_bytep row,
* Here we zero b and d, which become c and a respectively at the start of
* the loop.
*/
png_size_t rb;
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i c, b = zero,
a, d = zero;
@ -356,7 +341,7 @@ void png_read_filter_row_paeth4_sse2(png_row_infop row_info, png_bytep row,
* Here we zero b and d, which become c and a respectively at the start of
* the loop.
*/
png_size_t rb;
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i pa,pb,pc,smallest,nearest;
__m128i c, b = zero,

3
Engine/lib/lpng/intel/intel_init.c
View file

@ -1,12 +1,11 @@
/* intel_init.c - SSE2 optimized filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2016-2017 Glenn Randers-Pehrson
* Written by Mike Klein and Matt Sarett, Google, Inc.
* Derived from arm/arm_init.c
*
* Last changed in libpng 1.6.29 [March 16, 2017]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h