Merge pull request godotengine#101346 from akien-mga/libpng-1.6.45

libpng: Update to 1.6.45

Author: akien-mga

COPYRIGHT.txt

@@ -329,8 +329,8 @@ License: BSD-3-clause
 
 Files: ./thirdparty/libpng/
 Comment: libpng
-Copyright: 1995-2024, The PNG Reference Library Authors.
- 2018-2024, Cosmin Truta.
+Copyright: 1995-2025, The PNG Reference Library Authors.
+ 2018-2025, Cosmin Truta.
  2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  1996-1997, Andreas Dilger.
  1995-1996, Guy Eric Schalnat, Group 42, Inc.

drivers/png/SCsub

@@ -54,6 +54,9 @@ if env["builtin_libpng"]:
         env_thirdparty.Append(CPPDEFINES=["PNG_INTEL_SSE"])
         env_thirdparty.add_source_files(thirdparty_obj, thirdparty_dir + "intel/intel_init.c")
         env_thirdparty.add_source_files(thirdparty_obj, thirdparty_dir + "intel/filter_sse2_intrinsics.c")
+    elif env["arch"] == "loongarch64":
+        env_thirdparty.add_source_files(thirdparty_obj, thirdparty_dir + "loongarch/loongarch_lsx_init.c")
+        env_thirdparty.add_source_files(thirdparty_obj, thirdparty_dir + "loongarch/filter_lsx_intrinsics.c")
     elif env["arch"] == "ppc64":
         env_thirdparty.add_source_files(thirdparty_obj, thirdparty_dir + "powerpc/powerpc_init.c")
         env_thirdparty.add_source_files(thirdparty_obj, thirdparty_dir + "powerpc/filter_vsx_intrinsics.c")

thirdparty/README.md

@@ -511,14 +511,14 @@ Files extracted from upstream source:
 ## libpng
 
 - Upstream: http://libpng.org/pub/png/libpng.html
-- Version: 1.6.44 (f5e92d76973a7a53f517579bc95d61483bf108c0, 2024)
+- Version: 1.6.45 (51f5bd68b9b806d2c92b4318164d28b49357da31, 2024)
 - License: libpng/zlib
 
 Files extracted from upstream source:
 
 - All `.c` and `.h` files of the main directory, apart from `example.c` and
   `pngtest.c`
-- `arm/` (minus `filter_neon.S`), `intel/` and `powerpc/` (minus `.editorconfig`) folders
+- `arm/` (minus `filter_neon.S`), `intel/`, `loongarch/`, and `powerpc/` (minus `.editorconfig`) folders
 - `scripts/pnglibconf.h.prebuilt` as `pnglibconf.h`
 - `LICENSE`
 

thirdparty/libpng/LICENSE

@@ -4,8 +4,8 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
 PNG Reference Library License version 2
 ---------------------------------------
 
- * Copyright (c) 1995-2024 The PNG Reference Library Authors.
- * Copyright (c) 2018-2024 Cosmin Truta.
+ * Copyright (c) 1995-2025 The PNG Reference Library Authors.
+ * Copyright (c) 2018-2025 Cosmin Truta.
  * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  * Copyright (c) 1996-1997 Andreas Dilger.
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

thirdparty/libpng/arm/arm_init.c

@@ -1,4 +1,3 @@
-
 /* arm_init.c - NEON optimised filter functions
  *
  * Copyright (c) 2018-2022 Cosmin Truta

thirdparty/libpng/arm/filter_neon_intrinsics.c

@@ -1,4 +1,3 @@
-
 /* filter_neon_intrinsics.c - NEON optimised filter functions
  *
  * Copyright (c) 2018 Cosmin Truta

thirdparty/libpng/arm/palette_neon_intrinsics.c

@@ -1,4 +1,3 @@
-
 /* palette_neon_intrinsics.c - NEON optimised palette expansion functions
  *
  * Copyright (c) 2018-2019 Cosmin Truta
@@ -64,7 +63,7 @@ png_do_expand_palette_rgba8_neon(png_structrp png_ptr, png_row_infop row_info,
 {
    png_uint_32 row_width = row_info->width;
    const png_uint_32 *riffled_palette =
-      (const png_uint_32 *)png_ptr->riffled_palette;
+      png_aligncastconst(png_const_uint_32p, png_ptr->riffled_palette);
    const png_uint_32 pixels_per_chunk = 4;
    png_uint_32 i;
 

thirdparty/libpng/intel/filter_sse2_intrinsics.c

@@ -1,4 +1,3 @@
-
 /* filter_sse2_intrinsics.c - SSE2 optimized filter functions
  *
  * Copyright (c) 2018 Cosmin Truta

thirdparty/libpng/intel/intel_init.c

@@ -1,4 +1,3 @@
-
 /* intel_init.c - SSE2 optimized filter functions
  *
  * Copyright (c) 2018 Cosmin Truta