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b66ca1203985eccb68c8d9b6d0199d7811c5fd30
Anemone3DS/source/loading.c
LiquidFenrir 4a56a883fa make audio safer 
- centralized stop function
- freeing the struct not from the thread while waiting on handle in it
- thread not detached
- maybe fixes hang on exit from HM in ndsp status check loop
2022-06-14 13:02:15 +02:00

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/*
* This file is part of Anemone3DS
* Copyright (C) 2016-2020 Contributors in CONTRIBUTORS.md
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#include "loading.h"
#include "fs.h"
#include "unicode.h"
#include "music.h"
#include "draw.h"
#include <png.h>
void delete_entry(Entry_s * entry, bool is_file)
{
if(is_file)
FSUSER_DeleteFile(ArchiveSD, fsMakePath(PATH_UTF16, entry->path));
else
FSUSER_DeleteDirectoryRecursively(ArchiveSD, fsMakePath(PATH_UTF16, entry->path));
}
u32 load_data(char * filename, Entry_s entry, char ** buf)
{
if(entry.is_zip)
{
return zip_file_to_buf(filename+1, entry.path, buf); //the first character will always be '/' because of the other case
}
else
{
u16 path[0x106] = {0};
strucat(path, entry.path);
struacat(path, filename);
return file_to_buf(fsMakePath(PATH_UTF16, path), ArchiveSD, buf);
}
}
// Function taken and adapted from https://github.com/BernardoGiordano/Checkpoint/blob/master/3ds/source/title.cpp
C2D_Image * loadTextureIcon(Icon_s *icon)
{
if(icon == NULL)
return NULL;
C2D_Image * image = calloc(1, sizeof(C2D_Image));
C3D_Tex* tex = malloc(sizeof(C3D_Tex));
static const Tex3DS_SubTexture subt3x = { 48, 48, 0.0f, 48/64.0f, 48/64.0f, 0.0f };
image->tex = tex;
image->subtex = &subt3x;
C3D_TexInit(image->tex, 64, 64, GPU_RGB565);
u16* dest = (u16*)image->tex->data + (64-48)*64;
u16* src = icon->big_icon;
for (int j = 0; j < 48; j += 8)
{
memcpy(dest, src, 48*8*sizeof(u16));
src += 48*8;
dest += 64*8;
}
return image;
}
void parse_smdh(Icon_s *icon, Entry_s * entry, const u16 * fallback_name)
{
if(icon == NULL)
{
memcpy(entry->name, fallback_name, 0x80);
utf8_to_utf16(entry->desc, (u8*)"No description", 0x100);
utf8_to_utf16(entry->author, (u8*)"Unknown author", 0x80);
entry->placeholder_color = C2D_Color32(rand() % 255, rand() % 255, rand() % 255, 255);
return;
}
memcpy(entry->name, icon->name, 0x40*sizeof(u16));
memcpy(entry->desc, icon->desc, 0x80*sizeof(u16));
memcpy(entry->author, icon->author, 0x40*sizeof(u16));
}
static C2D_Image * load_entry_icon(Entry_s entry)
{
char *info_buffer = NULL;
u64 size = load_data("/info.smdh", entry, &info_buffer);
if(!size) return NULL;
Icon_s * smdh = (Icon_s *)info_buffer;
C2D_Image* out = loadTextureIcon(smdh);
free(info_buffer);
return out;
}
typedef int (*sort_comparator)(const void *, const void *);
static int compare_entries_by_name(const void * a, const void * b)
{
Entry_s *entry_a = (Entry_s *)a;
Entry_s *entry_b = (Entry_s *)b;
return memcmp(entry_a->name, entry_b->name, 0x40*sizeof(u16));
}
static int compare_entries_by_author(const void * a, const void * b)
{
Entry_s *entry_a = (Entry_s *)a;
Entry_s *entry_b = (Entry_s *)b;
return memcmp(entry_a->author, entry_b->author, 0x40*sizeof(u16));
}
static int compare_entries_by_filename(const void * a, const void * b)
{
Entry_s *entry_a = (Entry_s *)a;
Entry_s *entry_b = (Entry_s *)b;
return memcmp(entry_a->path, entry_b->path, 0x106*sizeof(u16));
}
static void sort_list(Entry_List_s * list, sort_comparator compare_entries)
{
if(list->entries != NULL && list->entries != NULL)
qsort(list->entries, list->entries_count, sizeof(Entry_s), compare_entries); //alphabet sort
}
void sort_by_name(Entry_List_s * list)
{
sort_list(list, compare_entries_by_name);
list->current_sort = SORT_NAME;
}
void sort_by_author(Entry_List_s * list)
{
sort_list(list, compare_entries_by_author);
list->current_sort = SORT_AUTHOR;
}
void sort_by_filename(Entry_List_s * list)
{
sort_list(list, compare_entries_by_filename);
list->current_sort = SORT_PATH;
}
Result load_entries(const char * loading_path, Entry_List_s * list)
{
Handle dir_handle;
Result res = FSUSER_OpenDirectory(&dir_handle, ArchiveSD, fsMakePath(PATH_ASCII, loading_path));
if(R_FAILED(res))
{
DEBUG("Failed to open folder: %s\n", loading_path);
return res;
}
u32 entries_read = 1;
while(entries_read)
{
FS_DirectoryEntry dir_entry = {0};
res = FSDIR_Read(dir_handle, &entries_read, 1, &dir_entry);
if(R_FAILED(res) || entries_read == 0)
break;
if(!(dir_entry.attributes & FS_ATTRIBUTE_DIRECTORY) && strcmp(dir_entry.shortExt, "ZIP"))
continue;
u16 path[0x106] = {0};
struacat(path, loading_path);
strucat(path, dir_entry.name);
char * buf = NULL;
if (!strcmp(dir_entry.shortExt, "ZIP"))
{
zip_file_to_buf("info.smdh", path, &buf);
}
else
{
const ssize_t len = strulen(path, 0x106);
struacat(path, "/info.smdh");
file_to_buf(fsMakePath(PATH_UTF16, path), ArchiveSD, &buf);
memset(&path[len], 0, (0x106 - len) * sizeof(u16));
}
list->entries_count++;
Entry_s * new_list = realloc(list->entries, list->entries_count * sizeof(Entry_s));
if(new_list == NULL)
{
// out of memory: still allow use of currently loaded entries.
// Many things might die, depending on the heap layout after
list->entries_count--;
free(buf);
break;
}
else
list->entries = new_list;
Entry_s * current_entry = &(list->entries[list->entries_count-1]);
memset(current_entry, 0, sizeof(Entry_s));
parse_smdh((Icon_s *)buf, current_entry, dir_entry.name);
free(buf);
memcpy(current_entry->path, path, 0x106 * sizeof(u16));
current_entry->is_zip = !strcmp(dir_entry.shortExt, "ZIP");
}
FSDIR_Close(dir_handle);
return res;
}
void load_icons_first(Entry_List_s * list, bool silent)
{
if(list == NULL || list->entries == NULL) return;
if(!silent)
draw_install(INSTALL_LOADING_ICONS);
int starti = 0, endi = 0;
if(list->entries_count <= list->entries_loaded*ICONS_OFFSET_AMOUNT)
{
DEBUG("small load\n");
// if the list is one that doesnt need swapping, load everything at once
endi = list->entries_count;
}
else
{
DEBUG("extended load\n");
// otherwise, load around to prepare for swapping
starti = list->scroll - list->entries_loaded*ICONS_VISIBLE;
endi = starti + list->entries_loaded*ICONS_OFFSET_AMOUNT;
}
list->icons = calloc(endi-starti, sizeof(C2D_Image*));
C2D_Image ** icons = list->icons;
for(int i = starti; i < endi; i++)
{
if(!silent)
draw_loading_bar(i - starti, endi-starti, INSTALL_LOADING_ICONS);
int offset = i;
if(offset < 0)
offset += list->entries_count;
if(offset >= list->entries_count)
offset -= list->entries_count;
Entry_s current_entry = list->entries[offset];
icons[i-starti] = load_entry_icon(current_entry);
}
}
static void reverse(C2D_Image * a[], int sz) {
int i, j;
for (i = 0, j = sz; i < j; i++, j--) {
C2D_Image * tmp = a[i];
a[i] = a[j];
a[j] = tmp;
}
}
static void rotate(C2D_Image * array[], int size, int amt) {
if (amt < 0)
amt = size + amt;
reverse(array, size-amt-1);
reverse(array+size-amt, amt-1);
reverse(array, size-1);
}
void handle_scrolling(Entry_List_s * list)
{
// Scroll the menu up or down if the selected theme is out of its bounds
//----------------------------------------------------------------
if(list->entries_count > list->entries_loaded)
{
for(int i = 0; i < list->entries_count; i++)
{
int change = 0;
if(list->entries_count > list->entries_loaded*2 && list->previous_scroll < list->entries_loaded && list->selected_entry >= list->entries_count - list->entries_loaded)
{
list->scroll = list->entries_count - list->entries_loaded;
}
else if(list->entries_count > list->entries_loaded*2 && list->selected_entry < list->entries_loaded && list->previous_selected >= list->entries_count - list->entries_loaded)
{
list->scroll = 0;
}
else if(list->selected_entry == list->previous_selected+1 && list->selected_entry == list->scroll+list->entries_loaded)
{
change = 1;
}
else if(list->selected_entry == list->previous_selected-1 && list->selected_entry == list->scroll-1)
{
change = -1;
}
else if(list->selected_entry == list->previous_selected+list->entries_loaded || list->selected_entry >= list->scroll + list->entries_loaded)
{
change = list->entries_loaded;
}
else if(list->selected_entry == list->previous_selected-list->entries_loaded || list->selected_entry < list->scroll)
{
change = -list->entries_loaded;
}
list->scroll += change;
if(list->scroll < 0)
list->scroll = 0;
else if(list->scroll > list->entries_count - list->entries_loaded)
list->scroll = list->entries_count - list->entries_loaded;
if(!change)
list->previous_selected = list->selected_entry;
else
list->previous_selected += change;
}
}
//----------------------------------------------------------------
}
static bool load_icons(Entry_List_s * current_list, Handle mutex)
{
if(current_list == NULL || current_list->entries == NULL)
return false;
handle_scrolling(current_list);
if(current_list->entries_count <= current_list->entries_loaded*ICONS_OFFSET_AMOUNT || current_list->previous_scroll == current_list->scroll)
return false; // return if the list is one that doesnt need swapping, or if nothing changed
#define SIGN(x) (x > 0 ? 1 : ((x < 0) ? -1 : 0))
int delta = current_list->scroll - current_list->previous_scroll;
if(abs(delta) >= current_list->entries_count - current_list->entries_loaded*(ICONS_OFFSET_AMOUNT-1))
delta = -SIGN(delta) * (current_list->entries_count - abs(delta));
int starti = current_list->scroll;
int endi = starti + abs(delta);
if(delta < 0)
{
endi -= abs(delta) + 1;
starti += abs(delta) - 1;
}
int ctr = 0;
Entry_s ** entries = calloc(abs(delta), sizeof(Entry_s *));
int * indexes = calloc(abs(delta), sizeof(int));
bool released = false;
C2D_Image ** icons = current_list->icons;
for(int i = starti; i != endi; i++, ctr++)
{
int index = 0;
int offset = i;
rotate(icons, ICONS_OFFSET_AMOUNT*current_list->entries_loaded, -1*SIGN(delta));
if(delta > 0)
{
index = current_list->entries_loaded*ICONS_OFFSET_AMOUNT - delta + i - starti;
offset += current_list->entries_loaded*ICONS_UNDER - delta;
}
else
{
index = 0 - delta - 1 + i - starti;
offset -= current_list->entries_loaded*ICONS_VISIBLE;
i -= 2; //i-- twice to counter the i++, needed only for this case
}
if(offset < 0)
offset += current_list->entries_count;
if(offset >= current_list->entries_count)
offset -= current_list->entries_count;
entries[ctr] = &current_list->entries[offset];
indexes[ctr] = index;
}
#undef SIGN
if(abs(delta) < 4)
{
svcReleaseMutex(mutex);
released = true;
}
svcSleepThread(1e7);
starti = 0;
endi = abs(delta);
for(int i = starti; i < endi; i++)
{
Entry_s * current_entry = entries[i];
int index = indexes[i];
C2D_Image * image = icons[index];
if (icons[index] != NULL)
{
C3D_TexDelete(image->tex);
free(image->tex);
free(image);
}
icons[index] = load_entry_icon(*current_entry);
if(!released && i > endi/2)
{
svcReleaseMutex(mutex);
released = true;
}
}
free(entries);
free(indexes);
current_list->previous_scroll = current_list->scroll;
return released;
}
void load_icons_thread(void * void_arg)
{
Thread_Arg_s * arg = (Thread_Arg_s *)void_arg;
Handle mutex = *(Handle *)arg->thread_arg[1];
do
{
svcWaitSynchronization(mutex, U64_MAX);
volatile Entry_List_s * current_list = *(volatile Entry_List_s **)arg->thread_arg[0];
bool released = load_icons((Entry_List_s *)current_list, mutex);
if(!released)
svcReleaseMutex(mutex);
}
while(arg->run_thread);
}
bool load_preview_from_buffer(void * buf, u32 size, C2D_Image * preview_image, int * preview_offset)
{
if(size < 8 || png_sig_cmp(buf, 0, 8))
{
throw_error("Invalid preview.png", ERROR_LEVEL_WARNING);
return false;
}
png_structp png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
png_infop info = png_create_info_struct(png);
if(setjmp(png_jmpbuf(png)))
{
png_destroy_read_struct(&png, &info, NULL);
return false;
}
FILE * fp = fmemopen(buf, size, "rb");
png_init_io(png, fp);
png_read_info(png, info);
int width = png_get_image_width(png, info);
int height = png_get_image_height(png, info);
png_byte color_type = png_get_color_type(png, info);
png_byte bit_depth = png_get_bit_depth(png, info);
// Read any color_type into 8bit depth, ABGR format.
// See http://www.libpng.org/pub/png/libpng-manual.txt
if(bit_depth == 16)
png_set_strip_16(png);
if(color_type == PNG_COLOR_TYPE_PALETTE)
png_set_palette_to_rgb(png);
// PNG_COLOR_TYPE_GRAY_ALPHA is always 8 or 16bit depth.
if(color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
png_set_expand_gray_1_2_4_to_8(png);
if(png_get_valid(png, info, PNG_INFO_tRNS))
png_set_tRNS_to_alpha(png);
// These color_type don't have an alpha channel then fill it with 0xff.
if(color_type == PNG_COLOR_TYPE_RGB ||
color_type == PNG_COLOR_TYPE_GRAY ||
color_type == PNG_COLOR_TYPE_PALETTE)
png_set_add_alpha(png, 0xFF, PNG_FILLER_BEFORE);
if(color_type == PNG_COLOR_TYPE_GRAY ||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
png_set_gray_to_rgb(png);
//output ABGR
png_set_bgr(png);
png_set_swap_alpha(png);
png_read_update_info(png, info);
png_bytep * row_pointers = malloc(sizeof(png_bytep) * height);
for(int y = 0; y < height; y++) {
row_pointers[y] = (png_byte*)malloc(png_get_rowbytes(png,info));
}
png_read_image(png, row_pointers);
fclose(fp);
png_destroy_read_struct(&png, &info, NULL);
free_preview(*preview_image);
C3D_Tex* tex = malloc(sizeof(C3D_Tex));
preview_image->tex = tex;
Tex3DS_SubTexture * subt3x = malloc(sizeof(Tex3DS_SubTexture));
subt3x->width = width;
subt3x->height = height;
subt3x->left = 0.0f;
subt3x->top = 1.0f;
subt3x->right = width/512.0f;
subt3x->bottom = 1.0-(height/512.0f);
preview_image->subtex = subt3x;
C3D_TexInit(preview_image->tex, 512, 512, GPU_RGBA8);
memset(preview_image->tex->data, 0, preview_image->tex->size);
for(int j = 0; j < height; j++) {
png_bytep row = row_pointers[j];
for(int i = 0; i < width; i++) {
png_bytep px = &(row[i * 4]);
u32 dst = ((((j >> 3) * (512 >> 3) + (i >> 3)) << 6) + ((i & 1) | ((j & 1) << 1) | ((i & 2) << 1) | ((j & 2) << 2) | ((i & 4) << 2) | ((j & 4) << 3))) * 4;
memcpy(preview_image->tex->data + dst, px, sizeof(u32));
}
free(row_pointers[j]);
}
free(row_pointers);
*preview_offset = (width-400)/2;
return true;
}
static u16 previous_path_preview[0x106] = {0};
bool load_preview(Entry_List_s list, C2D_Image * preview_image, int * preview_offset)
{
if(list.entries == NULL) return false;
Entry_s entry = list.entries[list.selected_entry];
if(!memcmp(&previous_path_preview, &entry.path, 0x106*sizeof(u16))) return true;
char *preview_buffer = NULL;
u64 size = load_data("/preview.png", entry, &preview_buffer);
if(!size)
{
free(preview_buffer);
throw_error("No preview found.", ERROR_LEVEL_WARNING);
return false;
}
bool ret = load_preview_from_buffer(preview_buffer, size, preview_image, preview_offset);
free(preview_buffer);
if(ret)
{
// mark the new preview as loaded for optimisation
memcpy(&previous_path_preview, &entry.path, 0x106*sizeof(u16));
}
return ret;
}
void free_preview(C2D_Image preview)
{
if(preview.tex)
C3D_TexDelete(preview.tex);
free(preview.tex);
free((Tex3DS_SubTexture*)preview.subtex);
}
// Initialize the audio struct
Result load_audio(Entry_s entry, audio_s *audio)
{
audio->filesize = load_data("/bgm.ogg", entry, &audio->filebuf);
if (audio->filesize == 0) {
free(audio);
DEBUG("<load_audio> File not found!\n");
return MAKERESULT(RL_FATAL, RS_NOTFOUND, RM_APPLICATION, RD_NOT_FOUND);
}
audio->mix[0] = audio->mix[1] = 1.0f; // Determines volume for the 12 (?) different outputs. See http://smealum.github.io/ctrulib/channel_8h.html#a30eb26f1972cc3ec28370263796c0444
ndspChnSetInterp(0, NDSP_INTERP_LINEAR);
ndspChnSetMix(0, audio->mix); // See mix comment above
FILE *file = fmemopen(audio->filebuf, audio->filesize, "rb");
DEBUG("<load_audio> Filesize: %ld\n", audio->filesize);
if(file != NULL)
{
int e = ov_open(file, &audio->vf, NULL, 0);
if (e < 0)
{
DEBUG("<load_audio> Vorbis: %d\n", e);
free(audio->filebuf);
free(audio);
fclose(file);
return MAKERESULT(RL_FATAL, RS_INVALIDARG, RM_APPLICATION, RD_NO_DATA);
}
vorbis_info *vi = ov_info(&audio->vf, -1);
ndspChnSetRate(0, vi->rate);// Set sample rate to what's read from the ogg file
if (vi->channels == 2) {
DEBUG("<load_audio> Using stereo\n");
ndspChnSetFormat(0, NDSP_FORMAT_STEREO_PCM16); // 2 channels == Stereo
} else {
DEBUG("<load_audio> Invalid number of channels\n");
free(audio->filebuf);
free(audio);
fclose(file);
return MAKERESULT(RL_FATAL, RS_INVALIDARG, RM_APPLICATION, RD_NO_DATA);
}
audio->wave_buf[0].nsamples = audio->wave_buf[1].nsamples = vi->rate / 4; // 4 bytes per sample, samples = rate (bytes) / 4
audio->wave_buf[0].status = audio->wave_buf[1].status = NDSP_WBUF_DONE; // Used in play to stop from writing to current buffer
audio->wave_buf[0].data_vaddr = linearAlloc(BUF_TO_READ); // Most vorbis packets should only be 4 KB at most (?) Possibly dangerous assumption
audio->wave_buf[1].data_vaddr = linearAlloc(BUF_TO_READ);
DEBUG("<load_audio> Success!\n");
return MAKERESULT(RL_SUCCESS, RS_SUCCESS, RM_APPLICATION, RD_SUCCESS);
} else {
free(audio->filebuf);
free(audio);
DEBUG("<load_audio> fmemopen failed!\n");
return MAKERESULT(RL_FATAL, RS_NOTFOUND, RM_APPLICATION, RD_NOT_FOUND);
}
}
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