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-rw-r--r--core/io/image.cpp317
1 files changed, 215 insertions, 102 deletions
diff --git a/core/io/image.cpp b/core/io/image.cpp
index 65addaf964..736a3ec82e 100644
--- a/core/io/image.cpp
+++ b/core/io/image.cpp
@@ -1,32 +1,32 @@
-/*************************************************************************/
-/* image.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
-/* */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the */
-/* "Software"), to deal in the Software without restriction, including */
-/* without limitation the rights to use, copy, modify, merge, publish, */
-/* distribute, sublicense, and/or sell copies of the Software, and to */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions: */
-/* */
-/* The above copyright notice and this permission notice shall be */
-/* included in all copies or substantial portions of the Software. */
-/* */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
-/*************************************************************************/
+/**************************************************************************/
+/* image.cpp */
+/**************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/**************************************************************************/
#include "image.h"
@@ -78,6 +78,10 @@ const char *Image::format_names[Image::FORMAT_MAX] = {
"ETC2_RGB8A1",
"ETC2_RA_AS_RG",
"FORMAT_DXT5_RA_AS_RG",
+ "ASTC_4x4",
+ "ASTC_4x4_HDR",
+ "ASTC_8x8",
+ "ASTC_8x8_HDR",
};
SavePNGFunc Image::save_png_func = nullptr;
@@ -173,6 +177,14 @@ int Image::get_format_pixel_size(Format p_format) {
return 1;
case FORMAT_DXT5_RA_AS_RG:
return 1;
+ case FORMAT_ASTC_4x4:
+ return 1;
+ case FORMAT_ASTC_4x4_HDR:
+ return 1;
+ case FORMAT_ASTC_8x8:
+ return 1;
+ case FORMAT_ASTC_8x8_HDR:
+ return 1;
case FORMAT_MAX: {
}
}
@@ -213,7 +225,18 @@ void Image::get_format_min_pixel_size(Format p_format, int &r_w, int &r_h) {
r_h = 4;
} break;
+ case FORMAT_ASTC_4x4:
+ case FORMAT_ASTC_4x4_HDR: {
+ r_w = 4;
+ r_h = 4;
+
+ } break;
+ case FORMAT_ASTC_8x8:
+ case FORMAT_ASTC_8x8_HDR: {
+ r_w = 8;
+ r_h = 8;
+ } break;
default: {
r_w = 1;
r_h = 1;
@@ -222,7 +245,9 @@ void Image::get_format_min_pixel_size(Format p_format, int &r_w, int &r_h) {
}
int Image::get_format_pixel_rshift(Format p_format) {
- if (p_format == FORMAT_DXT1 || p_format == FORMAT_RGTC_R || p_format == FORMAT_ETC || p_format == FORMAT_ETC2_R11 || p_format == FORMAT_ETC2_R11S || p_format == FORMAT_ETC2_RGB8 || p_format == FORMAT_ETC2_RGB8A1) {
+ if (p_format == FORMAT_ASTC_8x8) {
+ return 2;
+ } else if (p_format == FORMAT_DXT1 || p_format == FORMAT_RGTC_R || p_format == FORMAT_ETC || p_format == FORMAT_ETC2_R11 || p_format == FORMAT_ETC2_R11S || p_format == FORMAT_ETC2_RGB8 || p_format == FORMAT_ETC2_RGB8A1) {
return 1;
} else {
return 0;
@@ -260,6 +285,14 @@ int Image::get_format_block_size(Format p_format) {
{
return 4;
}
+ case FORMAT_ASTC_4x4:
+ case FORMAT_ASTC_4x4_HDR: {
+ return 4;
+ }
+ case FORMAT_ASTC_8x8:
+ case FORMAT_ASTC_8x8_HDR: {
+ return 8;
+ }
default: {
}
}
@@ -1341,78 +1374,126 @@ void Image::crop(int p_width, int p_height) {
void Image::rotate_90(ClockDirection p_direction) {
ERR_FAIL_COND_MSG(!_can_modify(format), "Cannot rotate in compressed or custom image formats.");
- ERR_FAIL_COND_MSG(width <= 1, "The Image width specified (" + itos(width) + " pixels) must be greater than 1 pixels.");
- ERR_FAIL_COND_MSG(height <= 1, "The Image height specified (" + itos(height) + " pixels) must be greater than 1 pixels.");
-
- int saved_width = height;
- int saved_height = width;
-
- if (width != height) {
- int n = MAX(width, height);
- resize(n, n, INTERPOLATE_NEAREST);
- }
+ ERR_FAIL_COND_MSG(width <= 0, "The Image width specified (" + itos(width) + " pixels) must be greater than 0 pixels.");
+ ERR_FAIL_COND_MSG(height <= 0, "The Image height specified (" + itos(height) + " pixels) must be greater than 0 pixels.");
bool used_mipmaps = has_mipmaps();
if (used_mipmaps) {
clear_mipmaps();
}
+ // In-place 90 degrees rotation by following the permutation cycles.
{
- uint8_t *w = data.ptrw();
- uint8_t src[16];
- uint8_t dst[16];
+ // Explanation by example (clockwise):
+ //
+ // abc da
+ // def -> eb
+ // fc
+ //
+ // In memory:
+ // 012345 012345
+ // abcdef -> daebfc
+ //
+ // Permutation cycles:
+ // (0 --a--> 1 --b--> 3 --d--> 0)
+ // (2 --c--> 5 --f--> 4 --e--> 2)
+ //
+ // Applying cycles (backwards):
+ // 0->s s=a (store)
+ // 3->0 abcdef -> dbcdef
+ // 1->3 dbcdef -> dbcbef
+ // s->1 dbcbef -> dacbef
+ //
+ // 2->s s=c
+ // 4->2 dacbef -> daebef
+ // 5->4 daebef -> daebff
+ // s->5 daebff -> daebfc
+
+ const int w = width;
+ const int h = height;
+ const int size = w * h;
+
+ uint8_t *data_ptr = data.ptrw();
uint32_t pixel_size = get_format_pixel_size(format);
- // Flip.
+ uint8_t single_pixel_buffer[16];
- if (p_direction == CLOCKWISE) {
- for (int y = 0; y < height / 2; y++) {
- for (int x = 0; x < width; x++) {
- _get_pixelb(x, y, pixel_size, w, src);
- _get_pixelb(x, height - y - 1, pixel_size, w, dst);
+#define PREV_INDEX_IN_CYCLE(index) (p_direction == CLOCKWISE) ? ((h - 1 - (index % h)) * w + (index / h)) : ((index % h) * w + (w - 1 - (index / h)))
- _put_pixelb(x, height - y - 1, pixel_size, w, src);
- _put_pixelb(x, y, pixel_size, w, dst);
+ if (w == h) { // Square case, 4-length cycles only (plus irrelevant thus skipped 1-length cycle in the middle for odd-sized squares).
+ for (int y = 0; y < h / 2; y++) {
+ for (int x = 0; x < (w + 1) / 2; x++) {
+ int current = y * w + x;
+ memcpy(single_pixel_buffer, data_ptr + current * pixel_size, pixel_size);
+ for (int i = 0; i < 3; i++) {
+ int prev = PREV_INDEX_IN_CYCLE(current);
+ memcpy(data_ptr + current * pixel_size, data_ptr + prev * pixel_size, pixel_size);
+ current = prev;
+ }
+ memcpy(data_ptr + current * pixel_size, single_pixel_buffer, pixel_size);
}
}
- } else {
- for (int y = 0; y < height; y++) {
- for (int x = 0; x < width / 2; x++) {
- _get_pixelb(x, y, pixel_size, w, src);
- _get_pixelb(width - x - 1, y, pixel_size, w, dst);
+ } else { // Rectangular case (w != h), kinda unpredictable cycles.
+ int permuted_pixels_count = 0;
+
+ for (int i = 0; i < size; i++) {
+ int prev = PREV_INDEX_IN_CYCLE(i);
+ if (prev == i) {
+ // 1-length cycle, pixel remains at the same index.
+ permuted_pixels_count++;
+ continue;
+ }
- _put_pixelb(width - x - 1, y, pixel_size, w, src);
- _put_pixelb(x, y, pixel_size, w, dst);
+ // Check whether we already processed this cycle.
+ // We iterate over it and if we'll find an index smaller than `i` then we already
+ // processed this cycle because we always start at the smallest index in the cycle.
+ // TODO: Improve this naive approach, can be done better.
+ while (prev > i) {
+ prev = PREV_INDEX_IN_CYCLE(prev);
+ }
+ if (prev < i) {
+ continue;
}
- }
- }
- // Transpose.
+ // Save the in-cycle pixel with the smallest index (`i`).
+ memcpy(single_pixel_buffer, data_ptr + i * pixel_size, pixel_size);
- for (int y = 0; y < height; y++) {
- for (int x = 0; x < width; x++) {
- if (x < y) {
- _get_pixelb(x, y, pixel_size, w, src);
- _get_pixelb(y, x, pixel_size, w, dst);
+ // Overwrite pixels one by one by the preceding pixel in the cycle.
+ int current = i;
+ prev = PREV_INDEX_IN_CYCLE(current);
+ while (prev != i) {
+ memcpy(data_ptr + current * pixel_size, data_ptr + prev * pixel_size, pixel_size);
+ permuted_pixels_count++;
- _put_pixelb(y, x, pixel_size, w, src);
- _put_pixelb(x, y, pixel_size, w, dst);
+ current = prev;
+ prev = PREV_INDEX_IN_CYCLE(current);
+ };
+
+ // Overwrite the remaining pixel in the cycle by the saved pixel with the smallest index.
+ memcpy(data_ptr + current * pixel_size, single_pixel_buffer, pixel_size);
+ permuted_pixels_count++;
+
+ if (permuted_pixels_count == size) {
+ break;
}
}
+
+ width = h;
+ height = w;
}
+
+#undef PREV_INDEX_IN_CYCLE
}
- if (saved_width != saved_height) {
- resize(saved_width, saved_height, INTERPOLATE_NEAREST);
- } else if (used_mipmaps) {
+ if (used_mipmaps) {
generate_mipmaps();
}
}
void Image::rotate_180() {
ERR_FAIL_COND_MSG(!_can_modify(format), "Cannot rotate in compressed or custom image formats.");
- ERR_FAIL_COND_MSG(width <= 1, "The Image width specified (" + itos(width) + " pixels) must be greater than 1 pixels.");
- ERR_FAIL_COND_MSG(height <= 1, "The Image height specified (" + itos(height) + " pixels) must be greater than 1 pixels.");
+ ERR_FAIL_COND_MSG(width <= 0, "The Image width specified (" + itos(width) + " pixels) must be greater than 0 pixels.");
+ ERR_FAIL_COND_MSG(height <= 0, "The Image height specified (" + itos(height) + " pixels) must be greater than 0 pixels.");
bool used_mipmaps = has_mipmaps();
if (used_mipmaps) {
@@ -1420,19 +1501,21 @@ void Image::rotate_180() {
}
{
- uint8_t *w = data.ptrw();
- uint8_t src[16];
- uint8_t dst[16];
+ uint8_t *data_ptr = data.ptrw();
uint32_t pixel_size = get_format_pixel_size(format);
- for (int y = 0; y < height / 2; y++) {
- for (int x = 0; x < width; x++) {
- _get_pixelb(x, y, pixel_size, w, src);
- _get_pixelb(width - x - 1, height - y - 1, pixel_size, w, dst);
+ uint8_t single_pixel_buffer[16];
- _put_pixelb(width - x - 1, height - y - 1, pixel_size, w, src);
- _put_pixelb(x, y, pixel_size, w, dst);
- }
+ uint8_t *from_begin_ptr = data_ptr;
+ uint8_t *from_end_ptr = data_ptr + (width * height - 1) * pixel_size;
+
+ while (from_begin_ptr < from_end_ptr) {
+ memcpy(single_pixel_buffer, from_begin_ptr, pixel_size);
+ memcpy(from_begin_ptr, from_end_ptr, pixel_size);
+ memcpy(from_end_ptr, single_pixel_buffer, pixel_size);
+
+ from_begin_ptr += pixel_size;
+ from_end_ptr -= pixel_size;
}
}
@@ -2108,16 +2191,16 @@ void Image::initialize_data(int p_width, int p_height, bool p_use_mipmaps, Forma
int size = _get_dst_image_size(p_width, p_height, p_format, mm, p_use_mipmaps ? -1 : 0);
if (unlikely(p_data.size() != size)) {
- String description_mipmaps;
+ String description_mipmaps = get_format_name(p_format) + " ";
if (p_use_mipmaps) {
const int num_mipmaps = get_image_required_mipmaps(p_width, p_height, p_format);
if (num_mipmaps != 1) {
- description_mipmaps = vformat("with %d mipmaps", num_mipmaps);
+ description_mipmaps += vformat("with %d mipmaps", num_mipmaps);
} else {
- description_mipmaps = "with 1 mipmap";
+ description_mipmaps += "with 1 mipmap";
}
} else {
- description_mipmaps = "without mipmaps";
+ description_mipmaps += "without mipmaps";
}
const String description = vformat("%dx%dx%d (%s)", p_width, p_height, get_format_pixel_size(p_format), description_mipmaps);
ERR_FAIL_MSG(vformat("Expected Image data size of %s = %d bytes, got %d bytes instead.", description, size, p_data.size()));
@@ -2531,35 +2614,43 @@ Error Image::decompress() {
_image_decompress_etc1(this);
} else if (format >= FORMAT_ETC2_R11 && format <= FORMAT_ETC2_RA_AS_RG && _image_decompress_etc2) {
_image_decompress_etc2(this);
+ } else if (format >= FORMAT_ASTC_4x4 && format <= FORMAT_ASTC_8x8_HDR && _image_decompress_astc) {
+ _image_decompress_astc(this);
} else {
return ERR_UNAVAILABLE;
}
return OK;
}
-Error Image::compress(CompressMode p_mode, CompressSource p_source, float p_lossy_quality) {
+Error Image::compress(CompressMode p_mode, CompressSource p_source, ASTCFormat p_astc_format) {
ERR_FAIL_INDEX_V_MSG(p_mode, COMPRESS_MAX, ERR_INVALID_PARAMETER, "Invalid compress mode.");
ERR_FAIL_INDEX_V_MSG(p_source, COMPRESS_SOURCE_MAX, ERR_INVALID_PARAMETER, "Invalid compress source.");
- return compress_from_channels(p_mode, detect_used_channels(p_source), p_lossy_quality);
+ return compress_from_channels(p_mode, detect_used_channels(p_source), p_astc_format);
}
-Error Image::compress_from_channels(CompressMode p_mode, UsedChannels p_channels, float p_lossy_quality) {
+Error Image::compress_from_channels(CompressMode p_mode, UsedChannels p_channels, ASTCFormat p_astc_format) {
+ ERR_FAIL_COND_V(data.is_empty(), ERR_INVALID_DATA);
+
switch (p_mode) {
case COMPRESS_S3TC: {
ERR_FAIL_COND_V(!_image_compress_bc_func, ERR_UNAVAILABLE);
- _image_compress_bc_func(this, p_lossy_quality, p_channels);
+ _image_compress_bc_func(this, p_channels);
} break;
case COMPRESS_ETC: {
ERR_FAIL_COND_V(!_image_compress_etc1_func, ERR_UNAVAILABLE);
- _image_compress_etc1_func(this, p_lossy_quality);
+ _image_compress_etc1_func(this);
} break;
case COMPRESS_ETC2: {
ERR_FAIL_COND_V(!_image_compress_etc2_func, ERR_UNAVAILABLE);
- _image_compress_etc2_func(this, p_lossy_quality, p_channels);
+ _image_compress_etc2_func(this, p_channels);
} break;
case COMPRESS_BPTC: {
ERR_FAIL_COND_V(!_image_compress_bptc_func, ERR_UNAVAILABLE);
- _image_compress_bptc_func(this, p_lossy_quality, p_channels);
+ _image_compress_bptc_func(this, p_channels);
+ } break;
+ case COMPRESS_ASTC: {
+ ERR_FAIL_COND_V(!_image_compress_bptc_func, ERR_UNAVAILABLE);
+ _image_compress_astc_func(this, p_astc_format);
} break;
case COMPRESS_MAX: {
ERR_FAIL_V(ERR_INVALID_PARAMETER);
@@ -2913,14 +3004,16 @@ ImageMemLoadFunc Image::_webp_mem_loader_func = nullptr;
ImageMemLoadFunc Image::_tga_mem_loader_func = nullptr;
ImageMemLoadFunc Image::_bmp_mem_loader_func = nullptr;
-void (*Image::_image_compress_bc_func)(Image *, float, Image::UsedChannels) = nullptr;
-void (*Image::_image_compress_bptc_func)(Image *, float, Image::UsedChannels) = nullptr;
-void (*Image::_image_compress_etc1_func)(Image *, float) = nullptr;
-void (*Image::_image_compress_etc2_func)(Image *, float, Image::UsedChannels) = nullptr;
+void (*Image::_image_compress_bc_func)(Image *, Image::UsedChannels) = nullptr;
+void (*Image::_image_compress_bptc_func)(Image *, Image::UsedChannels) = nullptr;
+void (*Image::_image_compress_etc1_func)(Image *) = nullptr;
+void (*Image::_image_compress_etc2_func)(Image *, Image::UsedChannels) = nullptr;
+void (*Image::_image_compress_astc_func)(Image *, Image::ASTCFormat) = nullptr;
void (*Image::_image_decompress_bc)(Image *) = nullptr;
void (*Image::_image_decompress_bptc)(Image *) = nullptr;
void (*Image::_image_decompress_etc1)(Image *) = nullptr;
void (*Image::_image_decompress_etc2)(Image *) = nullptr;
+void (*Image::_image_decompress_astc)(Image *) = nullptr;
Vector<uint8_t> (*Image::webp_lossy_packer)(const Ref<Image> &, float) = nullptr;
Vector<uint8_t> (*Image::webp_lossless_packer)(const Ref<Image> &) = nullptr;
@@ -3337,8 +3430,8 @@ void Image::_bind_methods() {
ClassDB::bind_method(D_METHOD("is_invisible"), &Image::is_invisible);
ClassDB::bind_method(D_METHOD("detect_used_channels", "source"), &Image::detect_used_channels, DEFVAL(COMPRESS_SOURCE_GENERIC));
- ClassDB::bind_method(D_METHOD("compress", "mode", "source", "lossy_quality"), &Image::compress, DEFVAL(COMPRESS_SOURCE_GENERIC), DEFVAL(0.7));
- ClassDB::bind_method(D_METHOD("compress_from_channels", "mode", "channels", "lossy_quality"), &Image::compress_from_channels, DEFVAL(0.7));
+ ClassDB::bind_method(D_METHOD("compress", "mode", "source", "astc_format"), &Image::compress, DEFVAL(COMPRESS_SOURCE_GENERIC), DEFVAL(ASTC_FORMAT_4x4));
+ ClassDB::bind_method(D_METHOD("compress_from_channels", "mode", "channels", "astc_format"), &Image::compress_from_channels, DEFVAL(ASTC_FORMAT_4x4));
ClassDB::bind_method(D_METHOD("decompress"), &Image::decompress);
ClassDB::bind_method(D_METHOD("is_compressed"), &Image::is_compressed);
@@ -3422,6 +3515,10 @@ void Image::_bind_methods() {
BIND_ENUM_CONSTANT(FORMAT_ETC2_RGB8A1);
BIND_ENUM_CONSTANT(FORMAT_ETC2_RA_AS_RG);
BIND_ENUM_CONSTANT(FORMAT_DXT5_RA_AS_RG);
+ BIND_ENUM_CONSTANT(FORMAT_ASTC_4x4);
+ BIND_ENUM_CONSTANT(FORMAT_ASTC_4x4_HDR);
+ BIND_ENUM_CONSTANT(FORMAT_ASTC_8x8);
+ BIND_ENUM_CONSTANT(FORMAT_ASTC_8x8_HDR);
BIND_ENUM_CONSTANT(FORMAT_MAX);
BIND_ENUM_CONSTANT(INTERPOLATE_NEAREST);
@@ -3449,13 +3546,16 @@ void Image::_bind_methods() {
BIND_ENUM_CONSTANT(COMPRESS_SOURCE_GENERIC);
BIND_ENUM_CONSTANT(COMPRESS_SOURCE_SRGB);
BIND_ENUM_CONSTANT(COMPRESS_SOURCE_NORMAL);
+
+ BIND_ENUM_CONSTANT(ASTC_FORMAT_4x4);
+ BIND_ENUM_CONSTANT(ASTC_FORMAT_8x8);
}
-void Image::set_compress_bc_func(void (*p_compress_func)(Image *, float, UsedChannels)) {
+void Image::set_compress_bc_func(void (*p_compress_func)(Image *, UsedChannels)) {
_image_compress_bc_func = p_compress_func;
}
-void Image::set_compress_bptc_func(void (*p_compress_func)(Image *, float, UsedChannels)) {
+void Image::set_compress_bptc_func(void (*p_compress_func)(Image *, UsedChannels)) {
_image_compress_bptc_func = p_compress_func;
}
@@ -3748,6 +3848,19 @@ void Image::convert_ra_rgba8_to_rg() {
}
}
+void Image::convert_rgba8_to_bgra8() {
+ ERR_FAIL_COND(format != FORMAT_RGBA8);
+ ERR_FAIL_COND(!data.size());
+
+ int s = data.size();
+ uint8_t *w = data.ptrw();
+ for (int i = 0; i < s; i += 4) {
+ uint8_t r = w[i];
+ w[i] = w[i + 2]; // Swap R to B
+ w[i + 2] = r; // Swap B to R
+ }
+}
+
Error Image::_load_from_buffer(const Vector<uint8_t> &p_array, ImageMemLoadFunc p_loader) {
int buffer_size = p_array.size();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 12:52:19 +0000