early-access version 3908

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 3907.
+This is the source code for early-access 3908.
 
 ## Legal Notice
 

externals/CMakeLists.txt

@@ -168,7 +168,7 @@ if (NOT TARGET LLVM::Demangle)
     add_library(LLVM::Demangle ALIAS demangle)
 endif()
 
-add_library(stb stb/stb_dxt.cpp)
+add_library(stb stb/stb_dxt.cpp stb/stb_image.cpp stb/stb_image_resize.cpp)
 target_include_directories(stb PUBLIC ./stb)
 
 add_library(bc_decoder bc_decoder/bc_decoder.cpp)

externals/stb/stb_image.h

@@ -0,0 +1,772 @@
+// SPDX-FileCopyrightText: stb http://nothings.org/stb
+// SPDX-License-Identifier: MIT
+
+/* stb_image - v2.28 - public domain image loader - http://nothings.org/stb
+                                  no warranty implied; use at your own risk
+
+   Do this:
+      #define STB_IMAGE_IMPLEMENTATION
+   before you include this file in *one* C or C++ file to create the implementation.
+
+   // i.e. it should look like this:
+   #include ...
+   #include ...
+   #include ...
+   #define STB_IMAGE_IMPLEMENTATION
+   #include "stb_image.h"
+
+   You can #define STBI_ASSERT(x) before the #include to avoid using assert.h.
+   And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free
+
+
+   QUICK NOTES:
+      Primarily of interest to game developers and other people who can
+          avoid problematic images and only need the trivial interface
+
+      JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib)
+      PNG 1/2/4/8/16-bit-per-channel
+
+      TGA (not sure what subset, if a subset)
+      BMP non-1bpp, non-RLE
+      PSD (composited view only, no extra channels, 8/16 bit-per-channel)
+
+      GIF (*comp always reports as 4-channel)
+      HDR (radiance rgbE format)
+      PIC (Softimage PIC)
+      PNM (PPM and PGM binary only)
+
+      Animated GIF still needs a proper API, but here's one way to do it:
+          http://gist.github.com/urraka/685d9a6340b26b830d49
+
+      - decode from memory or through FILE (define STBI_NO_STDIO to remove code)
+      - decode from arbitrary I/O callbacks
+      - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON)
+
+   Full documentation under "DOCUMENTATION" below.
+
+
+LICENSE
+
+  See end of file for license information.
+
+RECENT REVISION HISTORY:
+
+      2.28  (2023-01-29) many error fixes, security errors, just tons of stuff
+      2.27  (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes
+      2.26  (2020-07-13) many minor fixes
+      2.25  (2020-02-02) fix warnings
+      2.24  (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically
+      2.23  (2019-08-11) fix clang static analysis warning
+      2.22  (2019-03-04) gif fixes, fix warnings
+      2.21  (2019-02-25) fix typo in comment
+      2.20  (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs
+      2.19  (2018-02-11) fix warning
+      2.18  (2018-01-30) fix warnings
+      2.17  (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings
+      2.16  (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes
+      2.15  (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC
+      2.14  (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs
+      2.13  (2016-12-04) experimental 16-bit API, only for PNG so far; fixes
+      2.12  (2016-04-02) fix typo in 2.11 PSD fix that caused crashes
+      2.11  (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64
+                         RGB-format JPEG; remove white matting in PSD;
+                         allocate large structures on the stack;
+                         correct channel count for PNG & BMP
+      2.10  (2016-01-22) avoid warning introduced in 2.09
+      2.09  (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED
+
+   See end of file for full revision history.
+
+
+ ============================    Contributors    =========================
+
+ Image formats                          Extensions, features
+    Sean Barrett (jpeg, png, bmp)          Jetro Lauha (stbi_info)
+    Nicolas Schulz (hdr, psd)              Martin "SpartanJ" Golini (stbi_info)
+    Jonathan Dummer (tga)                  James "moose2000" Brown (iPhone PNG)
+    Jean-Marc Lienher (gif)                Ben "Disch" Wenger (io callbacks)
+    Tom Seddon (pic)                       Omar Cornut (1/2/4-bit PNG)
+    Thatcher Ulrich (psd)                  Nicolas Guillemot (vertical flip)
+    Ken Miller (pgm, ppm)                  Richard Mitton (16-bit PSD)
+    github:urraka (animated gif)           Junggon Kim (PNM comments)
+    Christopher Forseth (animated gif)     Daniel Gibson (16-bit TGA)
+                                           socks-the-fox (16-bit PNG)
+                                           Jeremy Sawicki (handle all ImageNet JPGs)
+ Optimizations & bugfixes                  Mikhail Morozov (1-bit BMP)
+    Fabian "ryg" Giesen                    Anael Seghezzi (is-16-bit query)
+    Arseny Kapoulkine                      Simon Breuss (16-bit PNM)
+    John-Mark Allen
+    Carmelo J Fdez-Aguera
+
+ Bug & warning fixes
+    Marc LeBlanc            David Woo          Guillaume George     Martins Mozeiko
+    Christpher Lloyd        Jerry Jansson      Joseph Thomson       Blazej Dariusz Roszkowski
+    Phil Jordan                                Dave Moore           Roy Eltham
+    Hayaki Saito            Nathan Reed        Won Chun
+    Luke Graham             Johan Duparc       Nick Verigakis       the Horde3D community
+    Thomas Ruf              Ronny Chevalier                         github:rlyeh
+    Janez Zemva             John Bartholomew   Michal Cichon        github:romigrou
+    Jonathan Blow           Ken Hamada         Tero Hanninen        github:svdijk
+    Eugene Golushkov        Laurent Gomila     Cort Stratton        github:snagar
+    Aruelien Pocheville     Sergio Gonzalez    Thibault Reuille     github:Zelex
+    Cass Everitt            Ryamond Barbiero                        github:grim210
+    Paul Du Bois            Engin Manap        Aldo Culquicondor    github:sammyhw
+    Philipp Wiesemann       Dale Weiler        Oriol Ferrer Mesia   github:phprus
+    Josh Tobin              Neil Bickford      Matthew Gregan       github:poppolopoppo
+    Julian Raschke          Gregory Mullen     Christian Floisand   github:darealshinji
+    Baldur Karlsson         Kevin Schmidt      JR Smith             github:Michaelangel007
+                            Brad Weinberger    Matvey Cherevko      github:mosra
+    Luca Sas                Alexander Veselov  Zack Middleton       [reserved]
+    Ryan C. Gordon          [reserved]                              [reserved]
+                     DO NOT ADD YOUR NAME HERE
+
+                     Jacko Dirks
+
+  To add your name to the credits, pick a random blank space in the middle and fill it.
+  80% of merge conflicts on stb PRs are due to people adding their name at the end
+  of the credits.
+*/
+
+#ifndef STBI_INCLUDE_STB_IMAGE_H
+#define STBI_INCLUDE_STB_IMAGE_H
+
+// DOCUMENTATION
+//
+// Limitations:
+//    - no 12-bit-per-channel JPEG
+//    - no JPEGs with arithmetic coding
+//    - GIF always returns *comp=4
+//
+// Basic usage (see HDR discussion below for HDR usage):
+//    int x,y,n;
+//    unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
+//    // ... process data if not NULL ...
+//    // ... x = width, y = height, n = # 8-bit components per pixel ...
+//    // ... replace '0' with '1'..'4' to force that many components per pixel
+//    // ... but 'n' will always be the number that it would have been if you said 0
+//    stbi_image_free(data);
+//
+// Standard parameters:
+//    int *x                 -- outputs image width in pixels
+//    int *y                 -- outputs image height in pixels
+//    int *channels_in_file  -- outputs # of image components in image file
+//    int desired_channels   -- if non-zero, # of image components requested in result
+//
+// The return value from an image loader is an 'unsigned char *' which points
+// to the pixel data, or NULL on an allocation failure or if the image is
+// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels,
+// with each pixel consisting of N interleaved 8-bit components; the first
+// pixel pointed to is top-left-most in the image. There is no padding between
+// image scanlines or between pixels, regardless of format. The number of
+// components N is 'desired_channels' if desired_channels is non-zero, or
+// *channels_in_file otherwise. If desired_channels is non-zero,
+// *channels_in_file has the number of components that _would_ have been
+// output otherwise. E.g. if you set desired_channels to 4, you will always
+// get RGBA output, but you can check *channels_in_file to see if it's trivially
+// opaque because e.g. there were only 3 channels in the source image.
+//
+// An output image with N components has the following components interleaved
+// in this order in each pixel:
+//
+//     N=#comp     components
+//       1           grey
+//       2           grey, alpha
+//       3           red, green, blue
+//       4           red, green, blue, alpha
+//
+// If image loading fails for any reason, the return value will be NULL,
+// and *x, *y, *channels_in_file will be unchanged. The function
+// stbi_failure_reason() can be queried for an extremely brief, end-user
+// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS
+// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly
+// more user-friendly ones.
+//
+// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.
+//
+// To query the width, height and component count of an image without having to
+// decode the full file, you can use the stbi_info family of functions:
+//
+//   int x,y,n,ok;
+//   ok = stbi_info(filename, &x, &y, &n);
+//   // returns ok=1 and sets x, y, n if image is a supported format,
+//   // 0 otherwise.
+//
+// Note that stb_image pervasively uses ints in its public API for sizes,
+// including sizes of memory buffers. This is now part of the API and thus
+// hard to change without causing breakage. As a result, the various image
+// loaders all have certain limits on image size; these differ somewhat
+// by format but generally boil down to either just under 2GB or just under
+// 1GB. When the decoded image would be larger than this, stb_image decoding
+// will fail.
+//
+// Additionally, stb_image will reject image files that have any of their
+// dimensions set to a larger value than the configurable STBI_MAX_DIMENSIONS,
+// which defaults to 2**24 = 16777216 pixels. Due to the above memory limit,
+// the only way to have an image with such dimensions load correctly
+// is for it to have a rather extreme aspect ratio. Either way, the
+// assumption here is that such larger images are likely to be malformed
+// or malicious. If you do need to load an image with individual dimensions
+// larger than that, and it still fits in the overall size limit, you can
+// #define STBI_MAX_DIMENSIONS on your own to be something larger.
+//
+// ===========================================================================
+//
+// UNICODE:
+//
+//   If compiling for Windows and you wish to use Unicode filenames, compile
+//   with
+//       #define STBI_WINDOWS_UTF8
+//   and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert
+//   Windows wchar_t filenames to utf8.
+//
+// ===========================================================================
+//
+// Philosophy
+//
+// stb libraries are designed with the following priorities:
+//
+//    1. easy to use
+//    2. easy to maintain
+//    3. good performance
+//
+// Sometimes I let "good performance" creep up in priority over "easy to maintain",
+// and for best performance I may provide less-easy-to-use APIs that give higher
+// performance, in addition to the easy-to-use ones. Nevertheless, it's important
+// to keep in mind that from the standpoint of you, a client of this library,
+// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all.
+//
+// Some secondary priorities arise directly from the first two, some of which
+// provide more explicit reasons why performance can't be emphasized.
+//
+//    - Portable ("ease of use")
+//    - Small source code footprint ("easy to maintain")
+//    - No dependencies ("ease of use")
+//
+// ===========================================================================
+//
+// I/O callbacks
+//
+// I/O callbacks allow you to read from arbitrary sources, like packaged
+// files or some other source. Data read from callbacks are processed
+// through a small internal buffer (currently 128 bytes) to try to reduce
+// overhead.
+//
+// The three functions you must define are "read" (reads some bytes of data),
+// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).
+//
+// ===========================================================================
+//
+// SIMD support
+//
+// The JPEG decoder will try to automatically use SIMD kernels on x86 when
+// supported by the compiler. For ARM Neon support, you must explicitly
+// request it.
+//
+// (The old do-it-yourself SIMD API is no longer supported in the current
+// code.)
+//
+// On x86, SSE2 will automatically be used when available based on a run-time
+// test; if not, the generic C versions are used as a fall-back. On ARM targets,
+// the typical path is to have separate builds for NEON and non-NEON devices
+// (at least this is true for iOS and Android). Therefore, the NEON support is
+// toggled by a build flag: define STBI_NEON to get NEON loops.
+//
+// If for some reason you do not want to use any of SIMD code, or if
+// you have issues compiling it, you can disable it entirely by
+// defining STBI_NO_SIMD.
+//
+// ===========================================================================
+//
+// HDR image support   (disable by defining STBI_NO_HDR)
+//
+// stb_image supports loading HDR images in general, and currently the Radiance
+// .HDR file format specifically. You can still load any file through the existing
+// interface; if you attempt to load an HDR file, it will be automatically remapped
+// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;
+// both of these constants can be reconfigured through this interface:
+//
+//     stbi_hdr_to_ldr_gamma(2.2f);
+//     stbi_hdr_to_ldr_scale(1.0f);
+//
+// (note, do not use _inverse_ constants; stbi_image will invert them
+// appropriately).
+//
+// Additionally, there is a new, parallel interface for loading files as
+// (linear) floats to preserve the full dynamic range:
+//
+//    float *data = stbi_loadf(filename, &x, &y, &n, 0);
+//
+// If you load LDR images through this interface, those images will
+// be promoted to floating point values, run through the inverse of
+// constants corresponding to the above:
+//
+//     stbi_ldr_to_hdr_scale(1.0f);
+//     stbi_ldr_to_hdr_gamma(2.2f);
+//
+// Finally, given a filename (or an open file or memory block--see header
+// file for details) containing image data, you can query for the "most
+// appropriate" interface to use (that is, whether the image is HDR or
+// not), using:
+//
+//     stbi_is_hdr(char *filename);
+//
+// ===========================================================================
+//
+// iPhone PNG support:
+//
+// We optionally support converting iPhone-formatted PNGs (which store
+// premultiplied BGRA) back to RGB, even though they're internally encoded
+// differently. To enable this conversion, call
+// stbi_convert_iphone_png_to_rgb(1).
+//
+// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per
+// pixel to remove any premultiplied alpha *only* if the image file explicitly
+// says there's premultiplied data (currently only happens in iPhone images,
+// and only if iPhone convert-to-rgb processing is on).
+//
+// ===========================================================================
+//
+// ADDITIONAL CONFIGURATION
+//
+//  - You can suppress implementation of any of the decoders to reduce
+//    your code footprint by #defining one or more of the following
+//    symbols before creating the implementation.
+//
+//        STBI_NO_JPEG
+//        STBI_NO_PNG
+//        STBI_NO_BMP
+//        STBI_NO_PSD
+//        STBI_NO_TGA
+//        STBI_NO_GIF
+//        STBI_NO_HDR
+//        STBI_NO_PIC
+//        STBI_NO_PNM   (.ppm and .pgm)
+//
+//  - You can request *only* certain decoders and suppress all other ones
+//    (this will be more forward-compatible, as addition of new decoders
+//    doesn't require you to disable them explicitly):
+//
+//        STBI_ONLY_JPEG
+//        STBI_ONLY_PNG
+//        STBI_ONLY_BMP
+//        STBI_ONLY_PSD
+//        STBI_ONLY_TGA
+//        STBI_ONLY_GIF
+//        STBI_ONLY_HDR
+//        STBI_ONLY_PIC
+//        STBI_ONLY_PNM   (.ppm and .pgm)
+//
+//   - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still
+//     want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB
+//
+//  - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater
+//    than that size (in either width or height) without further processing.
+//    This is to let programs in the wild set an upper bound to prevent
+//    denial-of-service attacks on untrusted data, as one could generate a
+//    valid image of gigantic dimensions and force stb_image to allocate a
+//    huge block of memory and spend disproportionate time decoding it. By
+//    default this is set to (1 << 24), which is 16777216, but that's still
+//    very big.
+
+#ifndef STBI_NO_STDIO
+#include <stdio.h>
+#endif // STBI_NO_STDIO
+
+#define STBI_VERSION 1
+
+enum
+{
+   STBI_default = 0, // only used for desired_channels
+
+   STBI_grey       = 1,
+   STBI_grey_alpha = 2,
+   STBI_rgb        = 3,
+   STBI_rgb_alpha  = 4
+};
+
+#include <stdlib.h>
+typedef unsigned char stbi_uc;
+typedef unsigned short stbi_us;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef STBIDEF
+#ifdef STB_IMAGE_STATIC
+#define STBIDEF static
+#else
+#define STBIDEF extern
+#endif
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// PRIMARY API - works on images of any type
+//
+
+//
+// load image by filename, open file, or memory buffer
+//
+
+typedef struct
+{
+   int      (*read)  (void *user,char *data,int size);   // fill 'data' with 'size' bytes.  return number of bytes actually read
+   void     (*skip)  (void *user,int n);                 // skip the next 'n' bytes, or 'unget' the last -n bytes if negative
+   int      (*eof)   (void *user);                       // returns nonzero if we are at end of file/data
+} stbi_io_callbacks;
+
+////////////////////////////////////
+//
+// 8-bits-per-channel interface
+//
+
+STBIDEF stbi_uc *stbi_load_from_memory   (stbi_uc           const *buffer, int len   , int *x, int *y, int *channels_in_file, int desired_channels);
+STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk  , void *user, int *x, int *y, int *channels_in_file, int desired_channels);
+
+#ifndef STBI_NO_STDIO
+STBIDEF stbi_uc *stbi_load            (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels);
+STBIDEF stbi_uc *stbi_load_from_file  (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels);
+// for stbi_load_from_file, file pointer is left pointing immediately after image
+#endif
+
+#ifndef STBI_NO_GIF
+STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp);
+#endif
+
+#ifdef STBI_WINDOWS_UTF8
+STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input);
+#endif
+
+////////////////////////////////////
+//
+// 16-bits-per-channel interface
+//
+
+STBIDEF stbi_us *stbi_load_16_from_memory   (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels);
+STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels);
+
+#ifndef STBI_NO_STDIO
+STBIDEF stbi_us *stbi_load_16          (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels);
+STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels);
+#endif
+
+////////////////////////////////////
+//
+// float-per-channel interface
+//
+#ifndef STBI_NO_LINEAR
+   STBIDEF float *stbi_loadf_from_memory     (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels);
+   STBIDEF float *stbi_loadf_from_callbacks  (stbi_io_callbacks const *clbk, void *user, int *x, int *y,  int *channels_in_file, int desired_channels);
+
+   #ifndef STBI_NO_STDIO
+   STBIDEF float *stbi_loadf            (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels);
+   STBIDEF float *stbi_loadf_from_file  (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels);
+   #endif
+#endif
+
+#ifndef STBI_NO_HDR
+   STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma);
+   STBIDEF void   stbi_hdr_to_ldr_scale(float scale);
+#endif // STBI_NO_HDR
+
+#ifndef STBI_NO_LINEAR
+   STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma);
+   STBIDEF void   stbi_ldr_to_hdr_scale(float scale);
+#endif // STBI_NO_LINEAR
+
+// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR
+STBIDEF int    stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user);
+STBIDEF int    stbi_is_hdr_from_memory(stbi_uc const *buffer, int len);
+#ifndef STBI_NO_STDIO
+STBIDEF int      stbi_is_hdr          (char const *filename);
+STBIDEF int      stbi_is_hdr_from_file(FILE *f);
+#endif // STBI_NO_STDIO
+
+
+// get a VERY brief reason for failure
+// on most compilers (and ALL modern mainstream compilers) this is threadsafe
+STBIDEF const char *stbi_failure_reason  (void);
+
+// free the loaded image -- this is just free()
+STBIDEF void     stbi_image_free      (void *retval_from_stbi_load);
+
+// get image dimensions & components without fully decoding
+STBIDEF int      stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
+STBIDEF int      stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
+STBIDEF int      stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len);
+STBIDEF int      stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user);
+
+#ifndef STBI_NO_STDIO
+STBIDEF int      stbi_info               (char const *filename,     int *x, int *y, int *comp);
+STBIDEF int      stbi_info_from_file     (FILE *f,                  int *x, int *y, int *comp);
+STBIDEF int      stbi_is_16_bit          (char const *filename);
+STBIDEF int      stbi_is_16_bit_from_file(FILE *f);
+#endif
+
+
+
+// for image formats that explicitly notate that they have premultiplied alpha,
+// we just return the colors as stored in the file. set this flag to force
+// unpremultiplication. results are undefined if the unpremultiply overflow.
+STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply);
+
+// indicate whether we should process iphone images back to canonical format,
+// or just pass them through "as-is"
+STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
+
+// flip the image vertically, so the first pixel in the output array is the bottom left
+STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip);
+
+// as above, but only applies to images loaded on the thread that calls the function
+// this function is only available if your compiler supports thread-local variables;
+// calling it will fail to link if your compiler doesn't
+STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply);
+STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert);
+STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip);
+
+// ZLIB client - used by PNG, available for other purposes
+
+STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen);
+STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header);
+STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen);
+STBIDEF int   stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
+
+STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen);
+STBIDEF int   stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+//
+//
+////   end header file   /////////////////////////////////////////////////////
+#endif // STBI_INCLUDE_STB_IMAGE_H
+
+/*
+   revision history:
+      2.20  (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs
+      2.19  (2018-02-11) fix warning
+      2.18  (2018-01-30) fix warnings
+      2.17  (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug
+                         1-bit BMP
+                         *_is_16_bit api
+                         avoid warnings
+      2.16  (2017-07-23) all functions have 16-bit variants;
+                         STBI_NO_STDIO works again;
+                         compilation fixes;
+                         fix rounding in unpremultiply;
+                         optimize vertical flip;
+                         disable raw_len validation;
+                         documentation fixes
+      2.15  (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode;
+                         warning fixes; disable run-time SSE detection on gcc;
+                         uniform handling of optional "return" values;
+                         thread-safe initialization of zlib tables
+      2.14  (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs
+      2.13  (2016-11-29) add 16-bit API, only supported for PNG right now
+      2.12  (2016-04-02) fix typo in 2.11 PSD fix that caused crashes
+      2.11  (2016-04-02) allocate large structures on the stack
+                         remove white matting for transparent PSD
+                         fix reported channel count for PNG & BMP
+                         re-enable SSE2 in non-gcc 64-bit
+                         support RGB-formatted JPEG
+                         read 16-bit PNGs (only as 8-bit)
+      2.10  (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED
+      2.09  (2016-01-16) allow comments in PNM files
+                         16-bit-per-pixel TGA (not bit-per-component)
+                         info() for TGA could break due to .hdr handling
+                         info() for BMP to shares code instead of sloppy parse
+                         can use STBI_REALLOC_SIZED if allocator doesn't support realloc
+                         code cleanup
+      2.08  (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA
+      2.07  (2015-09-13) fix compiler warnings
+                         partial animated GIF support
+                         limited 16-bpc PSD support
+                         #ifdef unused functions
+                         bug with < 92 byte PIC,PNM,HDR,TGA
+      2.06  (2015-04-19) fix bug where PSD returns wrong '*comp' value
+      2.05  (2015-04-19) fix bug in progressive JPEG handling, fix warning
+      2.04  (2015-04-15) try to re-enable SIMD on MinGW 64-bit
+      2.03  (2015-04-12) extra corruption checking (mmozeiko)
+                         stbi_set_flip_vertically_on_load (nguillemot)
+                         fix NEON support; fix mingw support
+      2.02  (2015-01-19) fix incorrect assert, fix warning
+      2.01  (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2
+      2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG
+      2.00  (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg)
+                         progressive JPEG (stb)
+                         PGM/PPM support (Ken Miller)
+                         STBI_MALLOC,STBI_REALLOC,STBI_FREE
+                         GIF bugfix -- seemingly never worked
+                         STBI_NO_*, STBI_ONLY_*
+      1.48  (2014-12-14) fix incorrectly-named assert()
+      1.47  (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb)
+                         optimize PNG (ryg)
+                         fix bug in interlaced PNG with user-specified channel count (stb)
+      1.46  (2014-08-26)
+              fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG
+      1.45  (2014-08-16)
+              fix MSVC-ARM internal compiler error by wrapping malloc
+      1.44  (2014-08-07)
+              various warning fixes from Ronny Chevalier
+      1.43  (2014-07-15)
+              fix MSVC-only compiler problem in code changed in 1.42
+      1.42  (2014-07-09)
+              don't define _CRT_SECURE_NO_WARNINGS (affects user code)
+              fixes to stbi__cleanup_jpeg path
+              added STBI_ASSERT to avoid requiring assert.h
+      1.41  (2014-06-25)
+              fix search&replace from 1.36 that messed up comments/error messages
+      1.40  (2014-06-22)
+              fix gcc struct-initialization warning
+      1.39  (2014-06-15)
+              fix to TGA optimization when req_comp != number of components in TGA;
+              fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite)
+              add support for BMP version 5 (more ignored fields)
+      1.38  (2014-06-06)
+              suppress MSVC warnings on integer casts truncating values
+              fix accidental rename of 'skip' field of I/O
+      1.37  (2014-06-04)
+              remove duplicate typedef
+      1.36  (2014-06-03)
+              convert to header file single-file library
+              if de-iphone isn't set, load iphone images color-swapped instead of returning NULL
+      1.35  (2014-05-27)
+              various warnings
+              fix broken STBI_SIMD path
+              fix bug where stbi_load_from_file no longer left file pointer in correct place
+              fix broken non-easy path for 32-bit BMP (possibly never used)
+              TGA optimization by Arseny Kapoulkine
+      1.34  (unknown)
+              use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case
+      1.33  (2011-07-14)
+              make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements
+      1.32  (2011-07-13)
+              support for "info" function for all supported filetypes (SpartanJ)
+      1.31  (2011-06-20)
+              a few more leak fixes, bug in PNG handling (SpartanJ)
+      1.30  (2011-06-11)
+              added ability to load files via callbacks to accomidate custom input streams (Ben Wenger)
+              removed deprecated format-specific test/load functions
+              removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway
+              error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha)
+              fix inefficiency in decoding 32-bit BMP (David Woo)
+      1.29  (2010-08-16)
+              various warning fixes from Aurelien Pocheville
+      1.28  (2010-08-01)
+              fix bug in GIF palette transparency (SpartanJ)
+      1.27  (2010-08-01)
+              cast-to-stbi_uc to fix warnings
+      1.26  (2010-07-24)
+              fix bug in file buffering for PNG reported by SpartanJ
+      1.25  (2010-07-17)
+              refix trans_data warning (Won Chun)
+      1.24  (2010-07-12)
+              perf improvements reading from files on platforms with lock-heavy fgetc()
+              minor perf improvements for jpeg
+              deprecated type-specific functions so we'll get feedback if they're needed
+              attempt to fix trans_data warning (Won Chun)
+      1.23    fixed bug in iPhone support
+      1.22  (2010-07-10)
+              removed image *writing* support
+              stbi_info support from Jetro Lauha
+              GIF support from Jean-Marc Lienher
+              iPhone PNG-extensions from James Brown
+              warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva)
+      1.21    fix use of 'stbi_uc' in header (reported by jon blow)
+      1.20    added support for Softimage PIC, by Tom Seddon
+      1.19    bug in interlaced PNG corruption check (found by ryg)
+      1.18  (2008-08-02)
+              fix a threading bug (local mutable static)
+      1.17    support interlaced PNG
+      1.16    major bugfix - stbi__convert_format converted one too many pixels
+      1.15    initialize some fields for thread safety
+      1.14    fix threadsafe conversion bug
+              header-file-only version (#define STBI_HEADER_FILE_ONLY before including)
+      1.13    threadsafe
+      1.12    const qualifiers in the API
+      1.11    Support installable IDCT, colorspace conversion routines
+      1.10    Fixes for 64-bit (don't use "unsigned long")
+              optimized upsampling by Fabian "ryg" Giesen
+      1.09    Fix format-conversion for PSD code (bad global variables!)
+      1.08    Thatcher Ulrich's PSD code integrated by Nicolas Schulz
+      1.07    attempt to fix C++ warning/errors again
+      1.06    attempt to fix C++ warning/errors again
+      1.05    fix TGA loading to return correct *comp and use good luminance calc
+      1.04    default float alpha is 1, not 255; use 'void *' for stbi_image_free
+      1.03    bugfixes to STBI_NO_STDIO, STBI_NO_HDR
+      1.02    support for (subset of) HDR files, float interface for preferred access to them
+      1.01    fix bug: possible bug in handling right-side up bmps... not sure
+              fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all
+      1.00    interface to zlib that skips zlib header
+      0.99    correct handling of alpha in palette
+      0.98    TGA loader by lonesock; dynamically add loaders (untested)
+      0.97    jpeg errors on too large a file; also catch another malloc failure
+      0.96    fix detection of invalid v value - particleman@mollyrocket forum
+      0.95    during header scan, seek to markers in case of padding
+      0.94    STBI_NO_STDIO to disable stdio usage; rename all #defines the same
+      0.93    handle jpegtran output; verbose errors
+      0.92    read 4,8,16,24,32-bit BMP files of several formats
+      0.91    output 24-bit Windows 3.0 BMP files
+      0.90    fix a few more warnings; bump version number to approach 1.0
+      0.61    bugfixes due to Marc LeBlanc, Christopher Lloyd
+      0.60    fix compiling as c++
+      0.59    fix warnings: merge Dave Moore's -Wall fixes
+      0.58    fix bug: zlib uncompressed mode len/nlen was wrong endian
+      0.57    fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available
+      0.56    fix bug: zlib uncompressed mode len vs. nlen
+      0.55    fix bug: restart_interval not initialized to 0
+      0.54    allow NULL for 'int *comp'
+      0.53    fix bug in png 3->4; speedup png decoding
+      0.52    png handles req_comp=3,4 directly; minor cleanup; jpeg comments
+      0.51    obey req_comp requests, 1-component jpegs return as 1-component,
+              on 'test' only check type, not whether we support this variant
+      0.50  (2006-11-19)
+              first released version
+*/
+
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2017 Sean Barrett
+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.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+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 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.
+------------------------------------------------------------------------------
+*/

externals/stb/stb_image_resize.h

@@ -0,0 +1,426 @@
+// SPDX-FileCopyrightText: Jorge L Rodriguez
+// SPDX-License-Identifier: MIT
+
+/* stb_image_resize - v0.97 - public domain image resizing
+   by Jorge L Rodriguez (@VinoBS) - 2014
+   http://github.com/nothings/stb
+
+   Written with emphasis on usability, portability, and efficiency. (No
+   SIMD or threads, so it be easily outperformed by libs that use those.)
+   Only scaling and translation is supported, no rotations or shears.
+   Easy API downsamples w/Mitchell filter, upsamples w/cubic interpolation.
+
+   COMPILING & LINKING
+      In one C/C++ file that #includes this file, do this:
+         #define STB_IMAGE_RESIZE_IMPLEMENTATION
+      before the #include. That will create the implementation in that file.
+
+   QUICKSTART
+      stbir_resize_uint8(      input_pixels , in_w , in_h , 0,
+                               output_pixels, out_w, out_h, 0, num_channels)
+      stbir_resize_float(...)
+      stbir_resize_uint8_srgb( input_pixels , in_w , in_h , 0,
+                               output_pixels, out_w, out_h, 0,
+                               num_channels , alpha_chan  , 0)
+      stbir_resize_uint8_srgb_edgemode(
+                               input_pixels , in_w , in_h , 0,
+                               output_pixels, out_w, out_h, 0,
+                               num_channels , alpha_chan  , 0, STBIR_EDGE_CLAMP)
+                                                            // WRAP/REFLECT/ZERO
+
+   FULL API
+      See the "header file" section of the source for API documentation.
+
+   ADDITIONAL DOCUMENTATION
+
+      SRGB & FLOATING POINT REPRESENTATION
+         The sRGB functions presume IEEE floating point. If you do not have
+         IEEE floating point, define STBIR_NON_IEEE_FLOAT. This will use
+         a slower implementation.
+
+      MEMORY ALLOCATION
+         The resize functions here perform a single memory allocation using
+         malloc. To control the memory allocation, before the #include that
+         triggers the implementation, do:
+
+            #define STBIR_MALLOC(size,context) ...
+            #define STBIR_FREE(ptr,context)   ...
+
+         Each resize function makes exactly one call to malloc/free, so to use
+         temp memory, store the temp memory in the context and return that.
+
+      ASSERT
+         Define STBIR_ASSERT(boolval) to override assert() and not use assert.h
+
+      OPTIMIZATION
+         Define STBIR_SATURATE_INT to compute clamp values in-range using
+         integer operations instead of float operations. This may be faster
+         on some platforms.
+
+      DEFAULT FILTERS
+         For functions which don't provide explicit control over what filters
+         to use, you can change the compile-time defaults with
+
+            #define STBIR_DEFAULT_FILTER_UPSAMPLE     STBIR_FILTER_something
+            #define STBIR_DEFAULT_FILTER_DOWNSAMPLE   STBIR_FILTER_something
+
+         See stbir_filter in the header-file section for the list of filters.
+
+      NEW FILTERS
+         A number of 1D filter kernels are used. For a list of
+         supported filters see the stbir_filter enum. To add a new filter,
+         write a filter function and add it to stbir__filter_info_table.
+
+      PROGRESS
+         For interactive use with slow resize operations, you can install
+         a progress-report callback:
+
+            #define STBIR_PROGRESS_REPORT(val)   some_func(val)
+
+         The parameter val is a float which goes from 0 to 1 as progress is made.
+
+         For example:
+
+            static void my_progress_report(float progress);
+            #define STBIR_PROGRESS_REPORT(val) my_progress_report(val)
+
+            #define STB_IMAGE_RESIZE_IMPLEMENTATION
+            #include "stb_image_resize.h"
+
+            static void my_progress_report(float progress)
+            {
+               printf("Progress: %f%%\n", progress*100);
+            }
+
+      MAX CHANNELS
+         If your image has more than 64 channels, define STBIR_MAX_CHANNELS
+         to the max you'll have.
+
+      ALPHA CHANNEL
+         Most of the resizing functions provide the ability to control how
+         the alpha channel of an image is processed. The important things
+         to know about this:
+
+         1. The best mathematically-behaved version of alpha to use is
+         called "premultiplied alpha", in which the other color channels
+         have had the alpha value multiplied in. If you use premultiplied
+         alpha, linear filtering (such as image resampling done by this
+         library, or performed in texture units on GPUs) does the "right
+         thing". While premultiplied alpha is standard in the movie CGI
+         industry, it is still uncommon in the videogame/real-time world.
+
+         If you linearly filter non-premultiplied alpha, strange effects
+         occur. (For example, the 50/50 average of 99% transparent bright green
+         and 1% transparent black produces 50% transparent dark green when
+         non-premultiplied, whereas premultiplied it produces 50%
+         transparent near-black. The former introduces green energy
+         that doesn't exist in the source image.)
+
+         2. Artists should not edit premultiplied-alpha images; artists
+         want non-premultiplied alpha images. Thus, art tools generally output
+         non-premultiplied alpha images.
+
+         3. You will get best results in most cases by converting images
+         to premultiplied alpha before processing them mathematically.
+
+         4. If you pass the flag STBIR_FLAG_ALPHA_PREMULTIPLIED, the
+         resizer does not do anything special for the alpha channel;
+         it is resampled identically to other channels. This produces
+         the correct results for premultiplied-alpha images, but produces
+         less-than-ideal results for non-premultiplied-alpha images.
+
+         5. If you do not pass the flag STBIR_FLAG_ALPHA_PREMULTIPLIED,
+         then the resizer weights the contribution of input pixels
+         based on their alpha values, or, equivalently, it multiplies
+         the alpha value into the color channels, resamples, then divides
+         by the resultant alpha value. Input pixels which have alpha=0 do
+         not contribute at all to output pixels unless _all_ of the input
+         pixels affecting that output pixel have alpha=0, in which case
+         the result for that pixel is the same as it would be without
+         STBIR_FLAG_ALPHA_PREMULTIPLIED. However, this is only true for
+         input images in integer formats. For input images in float format,
+         input pixels with alpha=0 have no effect, and output pixels
+         which have alpha=0 will be 0 in all channels. (For float images,
+         you can manually achieve the same result by adding a tiny epsilon
+         value to the alpha channel of every image, and then subtracting
+         or clamping it at the end.)
+
+         6. You can suppress the behavior described in #5 and make
+         all-0-alpha pixels have 0 in all channels by #defining
+         STBIR_NO_ALPHA_EPSILON.
+
+         7. You can separately control whether the alpha channel is
+         interpreted as linear or affected by the colorspace. By default
+         it is linear; you almost never want to apply the colorspace.
+         (For example, graphics hardware does not apply sRGB conversion
+         to the alpha channel.)
+
+   CONTRIBUTORS
+      Jorge L Rodriguez: Implementation
+      Sean Barrett: API design, optimizations
+      Aras Pranckevicius: bugfix
+      Nathan Reed: warning fixes
+
+   REVISIONS
+      0.97 (2020-02-02) fixed warning
+      0.96 (2019-03-04) fixed warnings
+      0.95 (2017-07-23) fixed warnings
+      0.94 (2017-03-18) fixed warnings
+      0.93 (2017-03-03) fixed bug with certain combinations of heights
+      0.92 (2017-01-02) fix integer overflow on large (>2GB) images
+      0.91 (2016-04-02) fix warnings; fix handling of subpixel regions
+      0.90 (2014-09-17) first released version
+
+   LICENSE
+     See end of file for license information.
+
+   TODO
+      Don't decode all of the image data when only processing a partial tile
+      Don't use full-width decode buffers when only processing a partial tile
+      When processing wide images, break processing into tiles so data fits in L1 cache
+      Installable filters?
+      Resize that respects alpha test coverage
+         (Reference code: FloatImage::alphaTestCoverage and FloatImage::scaleAlphaToCoverage:
+         https://code.google.com/p/nvidia-texture-tools/source/browse/trunk/src/nvimage/FloatImage.cpp )
+*/
+
+#ifndef STBIR_INCLUDE_STB_IMAGE_RESIZE_H
+#define STBIR_INCLUDE_STB_IMAGE_RESIZE_H
+
+#ifdef _MSC_VER
+typedef unsigned char  stbir_uint8;
+typedef unsigned short stbir_uint16;
+typedef unsigned int   stbir_uint32;
+#else
+#include <stdint.h>
+typedef uint8_t  stbir_uint8;
+typedef uint16_t stbir_uint16;
+typedef uint32_t stbir_uint32;
+#endif
+
+#ifndef STBIRDEF
+#ifdef STB_IMAGE_RESIZE_STATIC
+#define STBIRDEF static
+#else
+#ifdef __cplusplus
+#define STBIRDEF extern "C"
+#else
+#define STBIRDEF extern
+#endif
+#endif
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Easy-to-use API:
+//
+//     * "input pixels" points to an array of image data with 'num_channels' channels (e.g. RGB=3, RGBA=4)
+//     * input_w is input image width (x-axis), input_h is input image height (y-axis)
+//     * stride is the offset between successive rows of image data in memory, in bytes. you can
+//       specify 0 to mean packed continuously in memory
+//     * alpha channel is treated identically to other channels.
+//     * colorspace is linear or sRGB as specified by function name
+//     * returned result is 1 for success or 0 in case of an error.
+//       #define STBIR_ASSERT() to trigger an assert on parameter validation errors.
+//     * Memory required grows approximately linearly with input and output size, but with
+//       discontinuities at input_w == output_w and input_h == output_h.
+//     * These functions use a "default" resampling filter defined at compile time. To change the filter,
+//       you can change the compile-time defaults by #defining STBIR_DEFAULT_FILTER_UPSAMPLE
+//       and STBIR_DEFAULT_FILTER_DOWNSAMPLE, or you can use the medium-complexity API.
+
+STBIRDEF int stbir_resize_uint8(     const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                           unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                     int num_channels);
+
+STBIRDEF int stbir_resize_float(     const float *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                           float *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                     int num_channels);
+
+
+// The following functions interpret image data as gamma-corrected sRGB.
+// Specify STBIR_ALPHA_CHANNEL_NONE if you have no alpha channel,
+// or otherwise provide the index of the alpha channel. Flags value
+// of 0 will probably do the right thing if you're not sure what
+// the flags mean.
+
+#define STBIR_ALPHA_CHANNEL_NONE       -1
+
+// Set this flag if your texture has premultiplied alpha. Otherwise, stbir will
+// use alpha-weighted resampling (effectively premultiplying, resampling,
+// then unpremultiplying).
+#define STBIR_FLAG_ALPHA_PREMULTIPLIED    (1 << 0)
+// The specified alpha channel should be handled as gamma-corrected value even
+// when doing sRGB operations.
+#define STBIR_FLAG_ALPHA_USES_COLORSPACE  (1 << 1)
+
+STBIRDEF int stbir_resize_uint8_srgb(const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                           unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                     int num_channels, int alpha_channel, int flags);
+
+
+typedef enum
+{
+    STBIR_EDGE_CLAMP   = 1,
+    STBIR_EDGE_REFLECT = 2,
+    STBIR_EDGE_WRAP    = 3,
+    STBIR_EDGE_ZERO    = 4,
+} stbir_edge;
+
+// This function adds the ability to specify how requests to sample off the edge of the image are handled.
+STBIRDEF int stbir_resize_uint8_srgb_edgemode(const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                                    unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                              int num_channels, int alpha_channel, int flags,
+                                              stbir_edge edge_wrap_mode);
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Medium-complexity API
+//
+// This extends the easy-to-use API as follows:
+//
+//     * Alpha-channel can be processed separately
+//       * If alpha_channel is not STBIR_ALPHA_CHANNEL_NONE
+//         * Alpha channel will not be gamma corrected (unless flags&STBIR_FLAG_GAMMA_CORRECT)
+//         * Filters will be weighted by alpha channel (unless flags&STBIR_FLAG_ALPHA_PREMULTIPLIED)
+//     * Filter can be selected explicitly
+//     * uint16 image type
+//     * sRGB colorspace available for all types
+//     * context parameter for passing to STBIR_MALLOC
+
+typedef enum
+{
+    STBIR_FILTER_DEFAULT      = 0,  // use same filter type that easy-to-use API chooses
+    STBIR_FILTER_BOX          = 1,  // A trapezoid w/1-pixel wide ramps, same result as box for integer scale ratios
+    STBIR_FILTER_TRIANGLE     = 2,  // On upsampling, produces same results as bilinear texture filtering
+    STBIR_FILTER_CUBICBSPLINE = 3,  // The cubic b-spline (aka Mitchell-Netrevalli with B=1,C=0), gaussian-esque
+    STBIR_FILTER_CATMULLROM   = 4,  // An interpolating cubic spline
+    STBIR_FILTER_MITCHELL     = 5,  // Mitchell-Netrevalli filter with B=1/3, C=1/3
+} stbir_filter;
+
+typedef enum
+{
+    STBIR_COLORSPACE_LINEAR,
+    STBIR_COLORSPACE_SRGB,
+
+    STBIR_MAX_COLORSPACES,
+} stbir_colorspace;
+
+// The following functions are all identical except for the type of the image data
+
+STBIRDEF int stbir_resize_uint8_generic( const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                               unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                         int num_channels, int alpha_channel, int flags,
+                                         stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space,
+                                         void *alloc_context);
+
+STBIRDEF int stbir_resize_uint16_generic(const stbir_uint16 *input_pixels  , int input_w , int input_h , int input_stride_in_bytes,
+                                               stbir_uint16 *output_pixels , int output_w, int output_h, int output_stride_in_bytes,
+                                         int num_channels, int alpha_channel, int flags,
+                                         stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space,
+                                         void *alloc_context);
+
+STBIRDEF int stbir_resize_float_generic( const float *input_pixels         , int input_w , int input_h , int input_stride_in_bytes,
+                                               float *output_pixels        , int output_w, int output_h, int output_stride_in_bytes,
+                                         int num_channels, int alpha_channel, int flags,
+                                         stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space,
+                                         void *alloc_context);
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Full-complexity API
+//
+// This extends the medium API as follows:
+//
+//       * uint32 image type
+//     * not typesafe
+//     * separate filter types for each axis
+//     * separate edge modes for each axis
+//     * can specify scale explicitly for subpixel correctness
+//     * can specify image source tile using texture coordinates
+
+typedef enum
+{
+    STBIR_TYPE_UINT8 ,
+    STBIR_TYPE_UINT16,
+    STBIR_TYPE_UINT32,
+    STBIR_TYPE_FLOAT ,
+
+    STBIR_MAX_TYPES
+} stbir_datatype;
+
+STBIRDEF int stbir_resize(         const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                         void *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                   stbir_datatype datatype,
+                                   int num_channels, int alpha_channel, int flags,
+                                   stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical,
+                                   stbir_filter filter_horizontal,  stbir_filter filter_vertical,
+                                   stbir_colorspace space, void *alloc_context);
+
+STBIRDEF int stbir_resize_subpixel(const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                         void *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                   stbir_datatype datatype,
+                                   int num_channels, int alpha_channel, int flags,
+                                   stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical,
+                                   stbir_filter filter_horizontal,  stbir_filter filter_vertical,
+                                   stbir_colorspace space, void *alloc_context,
+                                   float x_scale, float y_scale,
+                                   float x_offset, float y_offset);
+
+STBIRDEF int stbir_resize_region(  const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes,
+                                         void *output_pixels, int output_w, int output_h, int output_stride_in_bytes,
+                                   stbir_datatype datatype,
+                                   int num_channels, int alpha_channel, int flags,
+                                   stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical,
+                                   stbir_filter filter_horizontal,  stbir_filter filter_vertical,
+                                   stbir_colorspace space, void *alloc_context,
+                                   float s0, float t0, float s1, float t1);
+// (s0, t0) & (s1, t1) are the top-left and bottom right corner (uv addressing style: [0, 1]x[0, 1]) of a region of the input image to use.
+
+//
+//
+////   end header file   /////////////////////////////////////////////////////
+#endif // STBIR_INCLUDE_STB_IMAGE_RESIZE_H
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2017 Sean Barrett
+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.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+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 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.
+------------------------------------------------------------------------------
+*/

src/core/hle/service/am/am.cpp

@@ -764,6 +764,64 @@ void AppletMessageQueue::OperationModeChanged() {
     on_operation_mode_changed->Signal();
 }
 
+ILockAccessor::ILockAccessor(Core::System& system_)
+    : ServiceFramework{system_, "ILockAccessor"}, service_context{system_, "ILockAccessor"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {1, &ILockAccessor::TryLock, "TryLock"},
+            {2, &ILockAccessor::Unlock, "Unlock"},
+            {3, &ILockAccessor::GetEvent, "GetEvent"},
+            {4,&ILockAccessor::IsLocked, "IsLocked"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+
+    lock_event = service_context.CreateEvent("ILockAccessor::LockEvent");
+}
+
+ILockAccessor::~ILockAccessor() = default;
+
+void ILockAccessor::TryLock(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto return_handle = rp.Pop<bool>();
+
+    LOG_INFO(Service_AM, "called, return_handle={}", return_handle);
+
+    is_locked = true;
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u8>(is_locked);
+}
+
+void ILockAccessor::Unlock(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "called");
+
+    is_locked = false;
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ILockAccessor::GetEvent(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "called");
+
+    lock_event->Signal();
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(lock_event->GetReadableEvent());
+}
+
+void ILockAccessor::IsLocked(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+    rb.Push<u8>(is_locked);
+}
+
 ICommonStateGetter::ICommonStateGetter(Core::System& system_,
                                        std::shared_ptr<AppletMessageQueue> msg_queue_)
     : ServiceFramework{system_, "ICommonStateGetter"}, msg_queue{std::move(msg_queue_)},
@@ -787,7 +845,7 @@ ICommonStateGetter::ICommonStateGetter(Core::System& system_,
         {14, nullptr, "GetWakeupCount"},
         {20, nullptr, "PushToGeneralChannel"},
         {30, nullptr, "GetHomeButtonReaderLockAccessor"},
-        {31, nullptr, "GetReaderLockAccessorEx"},
+        {31, &ICommonStateGetter::GetReaderLockAccessorEx, "GetReaderLockAccessorEx"},
         {32, nullptr, "GetWriterLockAccessorEx"},
         {40, nullptr, "GetCradleFwVersion"},
         {50, &ICommonStateGetter::IsVrModeEnabled, "IsVrModeEnabled"},
@@ -805,7 +863,7 @@ ICommonStateGetter::ICommonStateGetter(Core::System& system_,
         {65, nullptr, "GetApplicationIdByContentActionName"},
         {66, &ICommonStateGetter::SetCpuBoostMode, "SetCpuBoostMode"},
         {67, nullptr, "CancelCpuBoostMode"},
-        {68, nullptr, "GetBuiltInDisplayType"},
+        {68, &ICommonStateGetter::GetBuiltInDisplayType, "GetBuiltInDisplayType"},
         {80, &ICommonStateGetter::PerformSystemButtonPressingIfInFocus, "PerformSystemButtonPressingIfInFocus"},
         {90, nullptr, "SetPerformanceConfigurationChangedNotification"},
         {91, nullptr, "GetCurrentPerformanceConfiguration"},
@@ -886,6 +944,18 @@ void ICommonStateGetter::RequestToAcquireSleepLock(HLERequestContext& ctx) {
     rb.Push(ResultSuccess);
 }
 
+void ICommonStateGetter::GetReaderLockAccessorEx(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto unknown = rp.Pop<u32>();
+
+    LOG_INFO(Service_AM, "called, unknown={}", unknown);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ILockAccessor>(system);
+}
+
 void ICommonStateGetter::GetAcquiredSleepLockEvent(HLERequestContext& ctx) {
     LOG_WARNING(Service_AM, "called");
 
@@ -970,6 +1040,14 @@ void ICommonStateGetter::SetCpuBoostMode(HLERequestContext& ctx) {
     apm_sys->SetCpuBoostMode(ctx);
 }
 
+void ICommonStateGetter::GetBuiltInDisplayType(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(0);
+}
+
 void ICommonStateGetter::PerformSystemButtonPressingIfInFocus(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto system_button{rp.PopEnum<SystemButtonType>()};
@@ -1493,6 +1571,9 @@ ILibraryAppletSelfAccessor::ILibraryAppletSelfAccessor(Core::System& system_)
     case Applets::AppletId::MiiEdit:
         PushInShowMiiEditData();
         break;
+    case Applets::AppletId::PhotoViewer:
+        PushInShowAlbum();
+        break;
     default:
         break;
     }
@@ -1569,6 +1650,23 @@ void ILibraryAppletSelfAccessor::GetCallerAppletIdentityInfo(HLERequestContext&
     rb.PushRaw(applet_info);
 }
 
+void ILibraryAppletSelfAccessor::PushInShowAlbum() {
+    const Applets::CommonArguments arguments{
+        .arguments_version = Applets::CommonArgumentVersion::Version3,
+        .size = Applets::CommonArgumentSize::Version3,
+        .library_version = 1,
+        .theme_color = Applets::ThemeColor::BasicBlack,
+        .play_startup_sound = true,
+        .system_tick = system.CoreTiming().GetClockTicks(),
+    };
+
+    std::vector<u8> argument_data(sizeof(arguments));
+    std::vector<u8> settings_data{2};
+    std::memcpy(argument_data.data(), &arguments, sizeof(arguments));
+    queue_data.emplace_back(std::move(argument_data));
+    queue_data.emplace_back(std::move(settings_data));
+}
+
 void ILibraryAppletSelfAccessor::PushInShowCabinetData() {
     const Applets::CommonArguments arguments{
         .arguments_version = Applets::CommonArgumentVersion::Version3,

src/core/hle/service/am/am.h

@@ -195,6 +195,23 @@ private:
     ScreenshotPermission screenshot_permission = ScreenshotPermission::Inherit;
 };
 
+class ILockAccessor final : public ServiceFramework<ILockAccessor> {
+public:
+    explicit ILockAccessor(Core::System& system_);
+    ~ILockAccessor() override;
+
+private:
+    void TryLock(HLERequestContext& ctx);
+    void Unlock(HLERequestContext& ctx);
+    void GetEvent(HLERequestContext& ctx);
+    void IsLocked(HLERequestContext& ctx);
+
+    bool is_locked{};
+
+    Kernel::KEvent* lock_event;
+    KernelHelpers::ServiceContext service_context;
+};
+
 class ICommonStateGetter final : public ServiceFramework<ICommonStateGetter> {
 public:
     explicit ICommonStateGetter(Core::System& system_,
@@ -237,6 +254,7 @@ private:
     void GetCurrentFocusState(HLERequestContext& ctx);
     void RequestToAcquireSleepLock(HLERequestContext& ctx);
     void GetAcquiredSleepLockEvent(HLERequestContext& ctx);
+    void GetReaderLockAccessorEx(HLERequestContext& ctx);
     void GetDefaultDisplayResolutionChangeEvent(HLERequestContext& ctx);
     void GetOperationMode(HLERequestContext& ctx);
     void GetPerformanceMode(HLERequestContext& ctx);
@@ -248,6 +266,7 @@ private:
     void EndVrModeEx(HLERequestContext& ctx);
     void GetDefaultDisplayResolution(HLERequestContext& ctx);
     void SetCpuBoostMode(HLERequestContext& ctx);
+    void GetBuiltInDisplayType(HLERequestContext& ctx);
     void PerformSystemButtonPressingIfInFocus(HLERequestContext& ctx);
     void GetSettingsPlatformRegion(HLERequestContext& ctx);
     void SetRequestExitToLibraryAppletAtExecuteNextProgramEnabled(HLERequestContext& ctx);
@@ -327,6 +346,7 @@ private:
     void ExitProcessAndReturn(HLERequestContext& ctx);
     void GetCallerAppletIdentityInfo(HLERequestContext& ctx);
 
+    void PushInShowAlbum();
     void PushInShowCabinetData();
     void PushInShowMiiEditData();
 

src/core/hle/service/am/applet_ae.cpp

@@ -28,8 +28,8 @@ public:
             {11, &ILibraryAppletProxy::GetLibraryAppletCreator, "GetLibraryAppletCreator"},
             {20, &ILibraryAppletProxy::OpenLibraryAppletSelfAccessor, "OpenLibraryAppletSelfAccessor"},
             {21, &ILibraryAppletProxy::GetAppletCommonFunctions, "GetAppletCommonFunctions"},
-            {22, nullptr, "GetHomeMenuFunctions"},
-            {23, nullptr, "GetGlobalStateController"},
+            {22, &ILibraryAppletProxy::GetHomeMenuFunctions, "GetHomeMenuFunctions"},
+            {23, &ILibraryAppletProxy::GetGlobalStateController, "GetGlobalStateController"},
             {1000, &ILibraryAppletProxy::GetDebugFunctions, "GetDebugFunctions"},
         };
         // clang-format on
@@ -110,6 +110,22 @@ private:
         rb.PushIpcInterface<IAppletCommonFunctions>(system);
     }
 
+    void GetHomeMenuFunctions(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AM, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IHomeMenuFunctions>(system);
+    }
+
+    void GetGlobalStateController(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AM, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IGlobalStateController>(system);
+    }
+
     void GetDebugFunctions(HLERequestContext& ctx) {
         LOG_DEBUG(Service_AM, "called");
 

src/core/hle/service/am/applets/applet_error.cpp

@@ -138,6 +138,10 @@ void Error::Initialize() {
         CopyArgumentData(data, args->application_error);
         error_code = Result(args->application_error.error_code);
         break;
+    case ErrorAppletMode::ShowErrorPctl:
+        CopyArgumentData(data, args->error_record);
+        error_code = Decode64BitError(args->error_record.error_code_64);
+        break;
     case ErrorAppletMode::ShowErrorRecord:
         CopyArgumentData(data, args->error_record);
         error_code = Decode64BitError(args->error_record.error_code_64);
@@ -191,6 +195,7 @@ void Error::Execute() {
         frontend.ShowCustomErrorText(error_code, main_text_string, detail_text_string, callback);
         break;
     }
+    case ErrorAppletMode::ShowErrorPctl:
     case ErrorAppletMode::ShowErrorRecord:
         reporter.SaveErrorReport(title_id, error_code,
                                  fmt::format("{:016X}", args->error_record.posix_time));

src/core/hle/service/caps/caps.cpp

@@ -16,7 +16,7 @@ namespace Service::Capture {
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
-    server_manager->RegisterNamedService("caps:a", std::make_shared<CAPS_A>(system));
+    server_manager->RegisterNamedService("caps:a", std::make_shared<IAlbumAccessorService>(system));
     server_manager->RegisterNamedService("caps:c", std::make_shared<CAPS_C>(system));
     server_manager->RegisterNamedService("caps:u", std::make_shared<CAPS_U>(system));
     server_manager->RegisterNamedService("caps:sc", std::make_shared<CAPS_SC>(system));

src/core/hle/service/caps/caps_a.cpp

@@ -1,7 +1,14 @@
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <sstream>
+#include <stb_image.h>
+#include <stb_image_resize.h>
+
+#include "common/fs/file.h"
+#include "common/fs/path_util.h"
 #include "core/hle/service/caps/caps_a.h"
+#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::Capture {
 
@@ -26,15 +33,16 @@ public:
     }
 };
 
-CAPS_A::CAPS_A(Core::System& system_) : ServiceFramework{system_, "caps:a"} {
+IAlbumAccessorService::IAlbumAccessorService(Core::System& system_)
+    : ServiceFramework{system_, "caps:a"} {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, nullptr, "GetAlbumFileCount"},
         {1, nullptr, "GetAlbumFileList"},
         {2, nullptr, "LoadAlbumFile"},
-        {3, nullptr, "DeleteAlbumFile"},
+        {3,  &IAlbumAccessorService::DeleteAlbumFile, "DeleteAlbumFile"},
         {4, nullptr, "StorageCopyAlbumFile"},
-        {5, nullptr, "IsAlbumMounted"},
+        {5, &IAlbumAccessorService::IsAlbumMounted, "IsAlbumMounted"},
         {6, nullptr, "GetAlbumUsage"},
         {7, nullptr, "GetAlbumFileSize"},
         {8, nullptr, "LoadAlbumFileThumbnail"},
@@ -47,18 +55,18 @@ CAPS_A::CAPS_A(Core::System& system_) : ServiceFramework{system_, "caps:a"} {
         {15, nullptr, "GetAlbumUsage3"},
         {16, nullptr, "GetAlbumMountResult"},
         {17, nullptr, "GetAlbumUsage16"},
-        {18, nullptr, "Unknown18"},
+        {18, &IAlbumAccessorService::Unknown18, "Unknown18"},
         {19, nullptr, "Unknown19"},
         {100, nullptr, "GetAlbumFileCountEx0"},
-        {101, nullptr, "GetAlbumFileListEx0"},
+        {101, &IAlbumAccessorService::GetAlbumFileListEx0, "GetAlbumFileListEx0"},
         {202, nullptr, "SaveEditedScreenShot"},
         {301, nullptr, "GetLastThumbnail"},
         {302, nullptr, "GetLastOverlayMovieThumbnail"},
-        {401, nullptr, "GetAutoSavingStorage"},
+        {401,  &IAlbumAccessorService::GetAutoSavingStorage, "GetAutoSavingStorage"},
         {501, nullptr, "GetRequiredStorageSpaceSizeToCopyAll"},
         {1001, nullptr, "LoadAlbumScreenShotThumbnailImageEx0"},
-        {1002, nullptr, "LoadAlbumScreenShotImageEx1"},
-        {1003, nullptr, "LoadAlbumScreenShotThumbnailImageEx1"},
+        {1002, &IAlbumAccessorService::LoadAlbumScreenShotImageEx1, "LoadAlbumScreenShotImageEx1"},
+        {1003, &IAlbumAccessorService::LoadAlbumScreenShotThumbnailImageEx1, "LoadAlbumScreenShotThumbnailImageEx1"},
         {8001, nullptr, "ForceAlbumUnmounted"},
         {8002, nullptr, "ResetAlbumMountStatus"},
         {8011, nullptr, "RefreshAlbumCache"},
@@ -74,6 +82,294 @@ CAPS_A::CAPS_A(Core::System& system_) : ServiceFramework{system_, "caps:a"} {
     RegisterHandlers(functions);
 }
 
-CAPS_A::~CAPS_A() = default;
+IAlbumAccessorService::~IAlbumAccessorService() = default;
+
+void IAlbumAccessorService::DeleteAlbumFile(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto file_id{rp.PopRaw<AlbumFileId>()};
+
+    LOG_INFO(Service_Capture, "called, application_id=0x{:0x}, storage={}, type={}",
+             file_id.application_id, file_id.storage, file_id.type);
+
+    if (file_id.storage == AlbumStorage::Sd) {
+        if (!Common::FS::RemoveFile(sd_image_paths[file_id.date.unique_id])) {
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ResultUnknown);
+            return;
+        }
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IAlbumAccessorService::IsAlbumMounted(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto storage{rp.PopEnum<AlbumStorage>()};
+
+    LOG_INFO(Service_Capture, "called, storage={}, is_mounted={}", storage, is_mounted);
+
+    if (storage == AlbumStorage::Sd) {
+        FindScreenshots();
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u8>(is_mounted);
+}
+
+void IAlbumAccessorService::Unknown18(HLERequestContext& ctx) {
+    struct UnknownBuffer {
+        INSERT_PADDING_BYTES(0x10);
+    };
+    static_assert(sizeof(UnknownBuffer) == 0x10, "UnknownBuffer is an invalid size");
+
+    LOG_WARNING(Service_Capture, "(STUBBED) called");
+
+    std::vector<UnknownBuffer> buffer{};
+
+    if (!buffer.empty()) {
+        ctx.WriteBuffer(buffer);
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(static_cast<u32>(buffer.size()));
+}
+
+void IAlbumAccessorService::GetAlbumFileListEx0(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto storage{rp.PopEnum<AlbumStorage>()};
+    const auto flags{rp.Pop<u8>()};
+
+    LOG_INFO(Service_Capture, "called, storage={}, flags={}", storage, flags);
+
+    std::vector<AlbumEntry> entries{};
+
+    if (storage == AlbumStorage::Sd) {
+        AlbumEntry entry;
+        for (u8 i = 0; i < static_cast<u8>(sd_image_paths.size()); i++) {
+            if (GetAlbumEntry(entry, sd_image_paths[i]).IsError()) {
+                continue;
+            }
+            entry.file_id.date.unique_id = i;
+            entries.push_back(entry);
+        }
+    }
+
+    if (!entries.empty()) {
+        ctx.WriteBuffer(entries);
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(entries.size());
+}
+
+void IAlbumAccessorService::GetAutoSavingStorage(HLERequestContext& ctx) {
+    bool is_autosaving{};
+
+    LOG_WARNING(Service_Capture, "(STUBBED) called, is_autosaving={}", is_autosaving);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u8>(is_autosaving);
+}
+
+void IAlbumAccessorService::LoadAlbumScreenShotImageEx1(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto file_id{rp.PopRaw<AlbumFileId>()};
+    const auto decoder_options{rp.PopRaw<ScreenShotDecodeOption>()};
+
+    LOG_INFO(Service_Capture, "called, application_id=0x{:0x}, storage={}, type={}, flags={}",
+             file_id.application_id, file_id.storage, file_id.type, decoder_options.flags);
+
+    const LoadAlbumScreenShotImageOutput image_output{
+        .width = 1280,
+        .height = 720,
+        .attribute =
+            {
+                .unknown_0{},
+                .orientation = ScreenShotOrientation::None,
+                .unknown_1{},
+                .unknown_2{},
+            },
+    };
+
+    std::vector<u8> image(image_output.height * image_output.width * STBI_rgb_alpha);
+
+    if (file_id.storage == AlbumStorage::Sd) {
+        LoadImage(image, sd_image_paths[file_id.date.unique_id],
+                  static_cast<int>(image_output.width), static_cast<int>(image_output.height),
+                  decoder_options.flags);
+    }
+
+    ctx.WriteBuffer(image_output, 0);
+    ctx.WriteBuffer(image, 1);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IAlbumAccessorService::LoadAlbumScreenShotThumbnailImageEx1(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto file_id{rp.PopRaw<AlbumFileId>()};
+    const auto decoder_options{rp.PopRaw<ScreenShotDecodeOption>()};
+
+    LOG_INFO(Service_Capture, "called, application_id=0x{:0x}, storage={}, type={}, flags={}",
+             file_id.application_id, file_id.storage, file_id.type, decoder_options.flags);
+
+    const LoadAlbumScreenShotImageOutput image_output{
+        .width = 320,
+        .height = 180,
+        .attribute =
+            {
+                .unknown_0{},
+                .orientation = ScreenShotOrientation::None,
+                .unknown_1{},
+                .unknown_2{},
+            },
+    };
+
+    std::vector<u8> image(image_output.height * image_output.width * STBI_rgb_alpha);
+
+    if (file_id.storage == AlbumStorage::Sd) {
+        LoadImage(image, sd_image_paths[file_id.date.unique_id],
+                  static_cast<int>(image_output.width), static_cast<int>(image_output.height),
+                  decoder_options.flags);
+    }
+
+    ctx.WriteBuffer(image_output, 0);
+    ctx.WriteBuffer(image, 1);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IAlbumAccessorService::FindScreenshots() {
+    is_mounted = false;
+    sd_image_paths.clear();
+
+    // TODO: Swap this with a blocking operation.
+    const auto screenshots_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::ScreenshotsDir);
+    Common::FS::IterateDirEntries(
+        screenshots_dir,
+        [this](const std::filesystem::path& full_path) {
+            AlbumEntry entry;
+            // TODO: Implement proper indexing to allow more images
+            if (sd_image_paths.size() > 0xFF) {
+                return true;
+            }
+            if (GetAlbumEntry(entry, full_path).IsSuccess()) {
+                sd_image_paths.push_back(full_path);
+            }
+            return true;
+        },
+        Common::FS::DirEntryFilter::File);
+
+    is_mounted = true;
+}
+
+Result IAlbumAccessorService::GetAlbumEntry(AlbumEntry& out_entry,
+                                            const std::filesystem::path& path) {
+    std::istringstream line_stream(path.filename().string());
+    std::string date;
+    std::string application;
+    std::string time;
+
+    // Parse filename to obtain entry properties
+    std::getline(line_stream, application, '_');
+    std::getline(line_stream, date, '_');
+    std::getline(line_stream, time, '_');
+
+    std::istringstream line_stream2(date);
+    std::istringstream line_stream3(time);
+    std::string year;
+    std::string month;
+    std::string day;
+    std::string hour;
+    std::string minute;
+    std::string second;
+
+    std::getline(line_stream2, year, '-');
+    std::getline(line_stream2, month, '-');
+    std::getline(line_stream2, day, '-');
+
+    std::getline(line_stream3, hour, '-');
+    std::getline(line_stream3, minute, '-');
+    std::getline(line_stream3, second, '-');
+
+    try {
+        out_entry = {
+            .entry_size = 1,
+            .file_id{
+                .application_id = static_cast<u64>(std::stoll(application, 0, 16)),
+                .date =
+                    {
+                        .year = static_cast<u16>(std::stoi(year)),
+                        .month = static_cast<u8>(std::stoi(month)),
+                        .day = static_cast<u8>(std::stoi(day)),
+                        .hour = static_cast<u8>(std::stoi(hour)),
+                        .minute = static_cast<u8>(std::stoi(minute)),
+                        .second = static_cast<u8>(std::stoi(second)),
+                        .unique_id = 0,
+                    },
+                .storage = AlbumStorage::Sd,
+                .type = ContentType::Screenshot,
+                .unknown = 1,
+            },
+        };
+    } catch (const std::invalid_argument&) {
+        return ResultUnknown;
+    } catch (const std::out_of_range&) {
+        return ResultUnknown;
+    } catch (const std::exception&) {
+        return ResultUnknown;
+    }
+
+    return ResultSuccess;
+}
+
+Result IAlbumAccessorService::LoadImage(std::span<u8> out_image, const std::filesystem::path& path,
+                                        int width, int height, ScreenShotDecoderFlag flag) {
+    if (out_image.size() != static_cast<std::size_t>(width * height * STBI_rgb_alpha)) {
+        return ResultUnknown;
+    }
+
+    const Common::FS::IOFile db_file{path, Common::FS::FileAccessMode::Read,
+                                     Common::FS::FileType::BinaryFile};
+
+    std::vector<u8> raw_file(db_file.GetSize());
+    if (db_file.Read(raw_file) != raw_file.size()) {
+        return ResultUnknown;
+    }
+
+    int filter_flag = STBIR_FILTER_DEFAULT;
+    int original_width, original_height, color_channels;
+    const auto dbi_image =
+        stbi_load_from_memory(raw_file.data(), static_cast<int>(raw_file.size()), &original_width,
+                              &original_height, &color_channels, STBI_rgb_alpha);
+
+    if (dbi_image == nullptr) {
+        return ResultUnknown;
+    }
+
+    switch (flag) {
+    case ScreenShotDecoderFlag::EnableFancyUpsampling:
+        filter_flag = STBIR_FILTER_TRIANGLE;
+        break;
+    case ScreenShotDecoderFlag::EnableBlockSmoothing:
+        filter_flag = STBIR_FILTER_BOX;
+        break;
+    default:
+        filter_flag = STBIR_FILTER_DEFAULT;
+        break;
+    }
+
+    stbir_resize_uint8_srgb(dbi_image, original_width, original_height, 0, out_image.data(), width,
+                            height, 0, STBI_rgb_alpha, 3, filter_flag);
+
+    return ResultSuccess;
+}
 
 } // namespace Service::Capture

src/core/hle/service/caps/caps_a.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include "common/fs/fs.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -11,10 +12,120 @@ class System;
 
 namespace Service::Capture {
 
-class CAPS_A final : public ServiceFramework<CAPS_A> {
+class IAlbumAccessorService final : public ServiceFramework<IAlbumAccessorService> {
 public:
-    explicit CAPS_A(Core::System& system_);
-    ~CAPS_A() override;
+    explicit IAlbumAccessorService(Core::System& system_);
+    ~IAlbumAccessorService() override;
+
+private:
+    enum class ContentType : u8 {
+        Screenshot,
+        Movie,
+        ExtraMovie,
+    };
+
+    enum class AlbumStorage : u8 {
+        Nand,
+        Sd,
+
+    };
+
+    enum class ScreenShotDecoderFlag : u64 {
+        None = 0,
+        EnableFancyUpsampling = 1 << 0,
+        EnableBlockSmoothing = 1 << 1,
+    };
+
+    enum class ScreenShotOrientation : u32 {
+        None,
+        Rotate90,
+        Rotat180,
+        Rotate270,
+    };
+
+    struct ScreenShotAttribute {
+        u32 unknown_0;
+        ScreenShotOrientation orientation;
+        u32 unknown_1;
+        u32 unknown_2;
+        INSERT_PADDING_BYTES(0x30);
+    };
+
+    struct ScreenShotDecodeOption {
+        ScreenShotDecoderFlag flags;
+        INSERT_PADDING_BYTES(0x18);
+    };
+    static_assert(sizeof(ScreenShotDecodeOption) == 0x20,
+                  "ScreenShotDecodeOption is an invalid size");
+
+    struct AlbumFileDateTime {
+        u16 year;
+        u8 month;
+        u8 day;
+        u8 hour;
+        u8 minute;
+        u8 second;
+        u8 unique_id;
+    };
+    static_assert(sizeof(AlbumFileDateTime) == 0x8, "AlbumFileDateTime is an invalid size");
+
+    struct AlbumFileId {
+        u64 application_id;
+        AlbumFileDateTime date;
+        AlbumStorage storage;
+        ContentType type;
+        INSERT_PADDING_BYTES(0x5);
+        u8 unknown;
+    };
+    static_assert(sizeof(AlbumFileId) == 0x18, "AlbumFileId is an invalid size");
+
+    struct AlbumEntry {
+        u64 entry_size;
+        AlbumFileId file_id;
+    };
+    static_assert(sizeof(AlbumEntry) == 0x20, "AlbumEntry is an invalid size");
+
+    struct ApplicationData {
+        std::array<u8, 0x400> data;
+        u32 data_size;
+    };
+    static_assert(sizeof(ApplicationData) == 0x404, "ApplicationData is an invalid size");
+
+    struct LoadAlbumScreenShotImageOutput {
+        s64 width;
+        s64 height;
+        ScreenShotAttribute attribute;
+        INSERT_PADDING_BYTES(0x400);
+    };
+    static_assert(sizeof(LoadAlbumScreenShotImageOutput) == 0x450,
+                  "LoadAlbumScreenShotImageOutput is an invalid size");
+
+    struct LoadAlbumScreenShotImageOutputForApplication {
+        s64 width;
+        s64 height;
+        ScreenShotAttribute attribute;
+        ApplicationData data;
+        INSERT_PADDING_BYTES(0xAC);
+    };
+    static_assert(sizeof(LoadAlbumScreenShotImageOutputForApplication) == 0x500,
+                  "LoadAlbumScreenShotImageOutput is an invalid size");
+
+    void DeleteAlbumFile(HLERequestContext& ctx);
+    void IsAlbumMounted(HLERequestContext& ctx);
+    void Unknown18(HLERequestContext& ctx);
+    void GetAlbumFileListEx0(HLERequestContext& ctx);
+    void GetAutoSavingStorage(HLERequestContext& ctx);
+    void LoadAlbumScreenShotImageEx1(HLERequestContext& ctx);
+    void LoadAlbumScreenShotThumbnailImageEx1(HLERequestContext& ctx);
+
+private:
+    void FindScreenshots();
+    Result GetAlbumEntry(AlbumEntry& out_entry, const std::filesystem::path& path);
+    Result LoadImage(std::span<u8> out_image, const std::filesystem::path& path, int width,
+                     int height, ScreenShotDecoderFlag flag);
+
+    bool is_mounted{};
+    std::vector<std::filesystem::path> sd_image_paths{};
 };
 
 } // namespace Service::Capture

src/core/hle/service/nifm/nifm.cpp

@@ -545,6 +545,14 @@ void IGeneralService::IsAnyInternetRequestAccepted(HLERequestContext& ctx) {
     }
 }
 
+void IGeneralService::IsAnyForegroundRequestAccepted(HLERequestContext& ctx) {
+    LOG_ERROR(Service_NIFM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u8>(0);
+}
+
 IGeneralService::IGeneralService(Core::System& system_)
     : ServiceFramework{system_, "IGeneralService"}, network{system_.GetRoomNetwork()} {
     // clang-format off
@@ -569,7 +577,7 @@ IGeneralService::IGeneralService(Core::System& system_)
         {19, nullptr, "SetEthernetCommunicationEnabled"},
         {20, &IGeneralService::IsEthernetCommunicationEnabled, "IsEthernetCommunicationEnabled"},
         {21, &IGeneralService::IsAnyInternetRequestAccepted, "IsAnyInternetRequestAccepted"},
-        {22, nullptr, "IsAnyForegroundRequestAccepted"},
+        {22, &IGeneralService::IsAnyForegroundRequestAccepted, "IsAnyForegroundRequestAccepted"},
         {23, nullptr, "PutToSleep"},
         {24, nullptr, "WakeUp"},
         {25, nullptr, "GetSsidListVersion"},

src/core/hle/service/nifm/nifm.h

@@ -35,6 +35,7 @@ private:
     void GetInternetConnectionStatus(HLERequestContext& ctx);
     void IsEthernetCommunicationEnabled(HLERequestContext& ctx);
     void IsAnyInternetRequestAccepted(HLERequestContext& ctx);
+    void IsAnyForegroundRequestAccepted(HLERequestContext& ctx);
 
     Network::RoomNetwork& network;
 };

src/core/hle/service/ns/ns.cpp

@@ -7,6 +7,7 @@
 #include "core/file_sys/control_metadata.h"
 #include "core/file_sys/patch_manager.h"
 #include "core/file_sys/vfs.h"
+#include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/glue/glue_manager.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/ns/errors.h"
@@ -502,8 +503,8 @@ IContentManagementInterface::IContentManagementInterface(Core::System& system_)
     static const FunctionInfo functions[] = {
         {11, nullptr, "CalculateApplicationOccupiedSize"},
         {43, nullptr, "CheckSdCardMountStatus"},
-        {47, nullptr, "GetTotalSpaceSize"},
-        {48, nullptr, "GetFreeSpaceSize"},
+        {47, &IContentManagementInterface::GetTotalSpaceSize, "GetTotalSpaceSize"},
+        {48, &IContentManagementInterface::GetFreeSpaceSize, "GetFreeSpaceSize"},
         {600, nullptr, "CountApplicationContentMeta"},
         {601, nullptr, "ListApplicationContentMetaStatus"},
         {605, nullptr, "ListApplicationContentMetaStatusWithRightsCheck"},
@@ -516,6 +517,28 @@ IContentManagementInterface::IContentManagementInterface(Core::System& system_)
 
 IContentManagementInterface::~IContentManagementInterface() = default;
 
+void IContentManagementInterface::GetTotalSpaceSize(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto storage{rp.PopEnum<FileSys::StorageId>()};
+
+    LOG_INFO(Service_Capture, "called, storage={}", storage);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push<u64>(system.GetFileSystemController().GetTotalSpaceSize(storage));
+}
+
+void IContentManagementInterface::GetFreeSpaceSize(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto storage{rp.PopEnum<FileSys::StorageId>()};
+
+    LOG_INFO(Service_Capture, "called, storage={}", storage);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push<u64>(system.GetFileSystemController().GetFreeSpaceSize(storage));
+}
+
 IDocumentInterface::IDocumentInterface(Core::System& system_)
     : ServiceFramework{system_, "IDocumentInterface"} {
     // clang-format off

src/core/hle/service/ns/ns.h

@@ -48,6 +48,10 @@ class IContentManagementInterface final : public ServiceFramework<IContentManage
 public:
     explicit IContentManagementInterface(Core::System& system_);
     ~IContentManagementInterface() override;
+
+private:
+    void GetTotalSpaceSize(HLERequestContext& ctx);
+    void GetFreeSpaceSize(HLERequestContext& ctx);
 };
 
 class IDocumentInterface final : public ServiceFramework<IDocumentInterface> {

src/core/hle/service/pctl/pctl_module.cpp

@@ -33,7 +33,7 @@ public:
             {1001, &IParentalControlService::CheckFreeCommunicationPermission, "CheckFreeCommunicationPermission"},
             {1002, nullptr, "ConfirmLaunchApplicationPermission"},
             {1003, nullptr, "ConfirmResumeApplicationPermission"},
-            {1004, nullptr, "ConfirmSnsPostPermission"},
+            {1004, &IParentalControlService::ConfirmSnsPostPermission, "ConfirmSnsPostPermission"},
             {1005, nullptr, "ConfirmSystemSettingsPermission"},
             {1006, &IParentalControlService::IsRestrictionTemporaryUnlocked, "IsRestrictionTemporaryUnlocked"},
             {1007, nullptr, "RevertRestrictionTemporaryUnlocked"},
@@ -236,6 +236,13 @@ private:
         states.free_communication = true;
     }
 
+    void ConfirmSnsPostPermission(HLERequestContext& ctx) {
+        LOG_WARNING(Service_PCTL, "(STUBBED) called");
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(Error::ResultNoFreeCommunication);
+    }
+
     void IsRestrictionTemporaryUnlocked(HLERequestContext& ctx) {
         const bool is_temporary_unlocked = false;
 

src/yuzu/main.cpp

@@ -1556,6 +1556,7 @@ void GMainWindow::ConnectMenuEvents() {
     // Tools
     connect_menu(ui->action_Rederive, std::bind(&GMainWindow::OnReinitializeKeys, this,
                                                 ReinitializeKeyBehavior::Warning));
+    connect_menu(ui->action_Load_Album, &GMainWindow::OnAlbum);
     connect_menu(ui->action_Load_Cabinet_Nickname_Owner,
                  [this]() { OnCabinet(Service::NFP::CabinetMode::StartNicknameAndOwnerSettings); });
     connect_menu(ui->action_Load_Cabinet_Eraser,
@@ -1593,6 +1594,7 @@ void GMainWindow::UpdateMenuState() {
     };
 
     const std::array applet_actions{
+        ui->action_Load_Album,
         ui->action_Load_Cabinet_Nickname_Owner,
         ui->action_Load_Cabinet_Eraser,
         ui->action_Load_Cabinet_Restorer,
@@ -4178,19 +4180,42 @@ void GMainWindow::OnToggleStatusBar() {
     statusBar()->setVisible(ui->action_Show_Status_Bar->isChecked());
 }
 
+void GMainWindow::OnAlbum() {
+    constexpr u64 AlbumId = 0x010000000000100Dull;
+    auto bis_system = system->GetFileSystemController().GetSystemNANDContents();
+    if (!bis_system) {
+        QMessageBox::warning(this, tr("No firmware available"),
+                             tr("Please install the firmware to use the Album applet."));
+        return;
+    }
+
+    auto album_nca = bis_system->GetEntry(AlbumId, FileSys::ContentRecordType::Program);
+    if (!album_nca) {
+        QMessageBox::warning(this, tr("Album Applet"),
+                             tr("Album applet is not available. Please reinstall firmware."));
+        return;
+    }
+
+    system->GetAppletManager().SetCurrentAppletId(Service::AM::Applets::AppletId::PhotoViewer);
+
+    const auto filename = QString::fromStdString(album_nca->GetFullPath());
+    UISettings::values.roms_path = QFileInfo(filename).path();
+    BootGame(filename);
+}
+
 void GMainWindow::OnCabinet(Service::NFP::CabinetMode mode) {
     constexpr u64 CabinetId = 0x0100000000001002ull;
     auto bis_system = system->GetFileSystemController().GetSystemNANDContents();
     if (!bis_system) {
         QMessageBox::warning(this, tr("No firmware available"),
-                             tr("Please install the firmware to use the Amiibo applet."));
+                             tr("Please install the firmware to use the Cabinet applet."));
         return;
     }
 
     auto cabinet_nca = bis_system->GetEntry(CabinetId, FileSys::ContentRecordType::Program);
     if (!cabinet_nca) {
         QMessageBox::warning(this, tr("Cabinet Applet"),
-                             tr("Amiibo applet is not available. Please reinstall firmware."));
+                             tr("Cabinet applet is not available. Please reinstall firmware."));
         return;
     }
 

src/yuzu/main.h

@@ -374,6 +374,7 @@ private slots:
     void ResetWindowSize720();
     void ResetWindowSize900();
     void ResetWindowSize1080();
+    void OnAlbum();
     void OnCabinet(Service::NFP::CabinetMode mode);
     void OnMiiEdit();
     void OnCaptureScreenshot();

src/yuzu/main.ui

@@ -160,6 +160,7 @@
     <addaction name="action_Verify_installed_contents"/>
     <addaction name="separator"/>
     <addaction name="menu_cabinet_applet"/>
+    <addaction name="action_Load_Album"/>
     <addaction name="action_Load_Mii_Edit"/>
     <addaction name="separator"/>
     <addaction name="action_Capture_Screenshot"/>
@@ -380,6 +381,11 @@
     <string>&amp;Capture Screenshot</string>
    </property>
   </action>
+  <action name="action_Load_Album">
+    <property name="text">
+      <string>Open &amp;Album</string>
+    </property>
+  </action>
   <action name="action_Load_Cabinet_Nickname_Owner">
    <property name="text">
     <string>&amp;Set Nickname and Owner</string>