VitaShell/photo.c
2017-02-25 13:39:30 +01:00

380 lines
8.5 KiB
C

/*
VitaShell
Copyright (C) 2015-2017, TheFloW
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/>.
*/
#include "main.h"
#include "archive.h"
#include "photo.h"
#include "file.h"
#include "theme.h"
#include "utils.h"
static vita2d_texture *loadImage(const char *file, int type, char *buffer) {
vita2d_texture *tex = NULL;
if (isInArchive()) {
int size = 0;
if (isInArchive()) {
enum FileTypes archiveType = getArchiveType();
switch(archiveType){
case FILE_TYPE_ZIP:
size = ReadArchiveFile(file, buffer, BIG_BUFFER_SIZE);
break;
case FILE_TYPE_RAR:
size = ReadArchiveRARFile(file,buffer,BIG_BUFFER_SIZE);
break;
default:
size = -1;
break;
}
} else {
size = ReadFile(file, buffer, BIG_BUFFER_SIZE);
}
if (size <= 0) {
return NULL;
}
switch (type) {
case FILE_TYPE_BMP:
tex = vita2d_load_BMP_buffer(buffer);
break;
case FILE_TYPE_PNG:
tex = vita2d_load_PNG_buffer(buffer);
break;
case FILE_TYPE_JPEG:
tex = vita2d_load_JPEG_buffer(buffer, size);
break;
}
} else {
switch (type) {
case FILE_TYPE_BMP:
tex = vita2d_load_BMP_file(file);
break;
case FILE_TYPE_PNG:
tex = vita2d_load_PNG_file(file);
break;
case FILE_TYPE_JPEG:
tex = vita2d_load_JPEG_file(file);
break;
}
}
// Set bilinear filter
if (tex)
vita2d_texture_set_filters(tex, SCE_GXM_TEXTURE_FILTER_LINEAR, SCE_GXM_TEXTURE_FILTER_LINEAR);
return tex;
}
static int isHorizontal(float rad) {
return ((int)sinf(rad) == 0) ? 1 : 0;
}
static void photoMode(float *zoom, float width, float height, float rad, int mode) {
int horizontal = isHorizontal(rad);
float h = (horizontal ? height : width);
float w = (horizontal ? width : height);
switch (mode) {
case MODE_CUSTOM:
break;
case MODE_PERFECT: // this is only used for showing image the first time
if (h > SCREEN_HEIGHT) { // first priority, fit height
*zoom = SCREEN_HEIGHT/h;
} else if (w > SCREEN_WIDTH) { // second priority, fit screen
*zoom = SCREEN_WIDTH/w;
} else { // otherwise, original size
*zoom = 1.0f;
}
break;
case MODE_ORIGINAL:
*zoom = 1.0f;
break;
case MODE_FIT_HEIGHT:
*zoom = SCREEN_HEIGHT/h;
break;
case MODE_FIT_WIDTH:
*zoom = SCREEN_WIDTH/w;
break;
}
}
static int getNextZoomMode(float *zoom, float width, float height, float rad, int mode) {
float next_zoom = ZOOM_MAX, smallest_zoom = ZOOM_MAX;;
int next_mode = MODE_ORIGINAL, smallest_mode = MODE_ORIGINAL;
int i = 0;
while (i < 3) {
if (mode == MODE_CUSTOM || mode == MODE_PERFECT || mode == MODE_FIT_WIDTH) {
mode = MODE_ORIGINAL;
} else {
mode++;
}
float new_zoom = 0.0f;
photoMode(&new_zoom, width, height, rad, mode);
if (new_zoom < smallest_zoom) {
smallest_zoom = new_zoom;
smallest_mode = mode;
}
if (new_zoom > *zoom && new_zoom < next_zoom) {
next_zoom = new_zoom;
next_mode = mode;
}
i++;
}
// Get smallest then
if (next_zoom == ZOOM_MAX) {
next_zoom = smallest_zoom;
next_mode = smallest_mode;
}
*zoom = next_zoom;
return next_mode;
}
static void resetImageInfo(vita2d_texture *tex, float *width, float *height, float *x, float *y, float *rad, float *zoom, int *mode, uint64_t *time) {
*width = vita2d_texture_get_width(tex);
*height = vita2d_texture_get_height(tex);
*x = *width/2.0f;
*y = *height/2.0f;
*rad = 0;
*zoom = 1.0f;
*mode = MODE_PERFECT;
photoMode(zoom, *width, *height, *rad, *mode);
*time = 0;
}
int photoViewer(const char *file, int type, FileList *list, FileListEntry *entry, int *base_pos, int *rel_pos) {
char *buffer = malloc(BIG_BUFFER_SIZE);
if (!buffer)
return -1;
vita2d_texture *tex = loadImage(file, type, buffer);
if (!tex) {
free(buffer);
return -1;
}
// Variables
float width = 0.0f, height = 0.0f, x = 0.0f, y = 0.0f, rad = 0.0f, zoom = 1.0f;
int mode = MODE_PERFECT;
uint64_t time = 0;
// Reset image
resetImageInfo(tex, &width, &height, &x, &y, &rad, &zoom, &mode, &time);
while (1) {
readPad();
// Cancel
if (pressed_buttons & SCE_CTRL_CANCEL) {
break;
}
// Previous/next image.
if (pressed_buttons & SCE_CTRL_LEFT || pressed_buttons & SCE_CTRL_RIGHT) {
int available = 0;
int old_base_pos = *base_pos;
int old_rel_pos = *rel_pos;
FileListEntry *old_entry = entry;
int previous = pressed_buttons & SCE_CTRL_LEFT;
while (previous ? entry->previous : entry->next) {
entry = previous ? entry->previous : entry->next;
if (previous) {
if (*rel_pos > 0) {
(*rel_pos)--;
} else {
if (*base_pos > 0) {
(*base_pos)--;
}
}
} else {
if ((*rel_pos+1) < list->length) {
if ((*rel_pos+1) < MAX_POSITION) {
(*rel_pos)++;
} else {
if ((*base_pos+*rel_pos+1) < list->length) {
(*base_pos)++;
}
}
}
}
if (!entry->is_folder) {
char path[MAX_PATH_LENGTH];
snprintf(path, MAX_PATH_LENGTH, "%s%s", list->path, entry->name);
int type = getFileType(path);
if (type == FILE_TYPE_BMP || type == FILE_TYPE_JPEG || type == FILE_TYPE_PNG) {
vita2d_wait_rendering_done();
vita2d_free_texture(tex);
tex = loadImage(path, type, buffer);
if (!tex) {
free(buffer);
return -1;
}
// Reset image
resetImageInfo(tex, &width, &height, &x, &y, &rad, &zoom, &mode, &time);
available = 1;
break;
}
}
}
if (!available) {
*base_pos = old_base_pos;
*rel_pos = old_rel_pos;
entry = old_entry;
}
}
// Photo mode
if (pressed_buttons & SCE_CTRL_ENTER) {
time = sceKernelGetProcessTimeWide();
x = width/2.0f;
y = height/2.0f;
// Find next mode
mode = getNextZoomMode(&zoom, width, height, rad, mode);
}
// Rotate
if (pressed_buttons & SCE_CTRL_LTRIGGER) {
rad -= M_PI_2;
if (rad < 0)
rad += M_TWOPI;
photoMode(&zoom, width, height, rad, mode);
} else if (pressed_buttons & SCE_CTRL_RTRIGGER) {
rad += M_PI_2;
if (rad >= M_TWOPI)
rad -= M_TWOPI;
photoMode(&zoom, width, height, rad, mode);
}
// Zoom
if (current_buttons & SCE_CTRL_RIGHT_ANALOG_DOWN) {
time = sceKernelGetProcessTimeWide();
mode = MODE_CUSTOM;
zoom /= ZOOM_FACTOR;
} else if (current_buttons & SCE_CTRL_RIGHT_ANALOG_UP) {
time = sceKernelGetProcessTimeWide();
mode = MODE_CUSTOM;
zoom *= ZOOM_FACTOR;
}
if (zoom < ZOOM_MIN) {
zoom = ZOOM_MIN;
}
if (zoom > ZOOM_MAX) {
zoom = ZOOM_MAX;
}
// Move
if (pad.lx < (ANALOG_CENTER - ANALOG_SENSITIVITY) || pad.lx > (ANALOG_CENTER + ANALOG_SENSITIVITY)) {
float d = ((pad.lx-ANALOG_CENTER) / MOVE_DIVISION) / zoom;
if (isHorizontal(rad)) {
x += cosf(rad) * d;
} else {
y += -sinf(rad) * d;
}
}
if (pad.ly < (ANALOG_CENTER - ANALOG_SENSITIVITY) || pad.ly > (ANALOG_CENTER + ANALOG_SENSITIVITY)) {
float d = ((pad.ly-ANALOG_CENTER) / MOVE_DIVISION) / zoom;
if (isHorizontal(rad)) {
y += cosf(rad) * d;
} else {
x += sinf(rad) * d;
}
}
// Limit
int horizontal = isHorizontal(rad);
float w = horizontal ? SCREEN_HALF_WIDTH : SCREEN_HALF_HEIGHT;
float h = horizontal ? SCREEN_HALF_HEIGHT : SCREEN_HALF_WIDTH;
if ((zoom*width) > 2.0f*w) {
if (x < (w/zoom)) {
x = w/zoom;
} else if (x > (width - w/zoom)) {
x = width - w/zoom;
}
} else {
x = width / 2.0f;
}
if ((zoom*height) > 2.0f*h) {
if (y < (h/zoom)) {
y = h/zoom;
} else if (y > (height - h/zoom)) {
y = height - h/zoom;
}
} else {
y = height/2.0f;
}
// Start drawing
startDrawing(bg_photo_image);
// Photo
vita2d_draw_texture_scale_rotate_hotspot(tex, SCREEN_HALF_WIDTH, SCREEN_HALF_HEIGHT, zoom, zoom, rad, x, y);
// Zoom text
if ((sceKernelGetProcessTimeWide() - time) < ZOOM_TEXT_TIME)
pgf_draw_textf(SHELL_MARGIN_X, SCREEN_HEIGHT - 3.0f * SHELL_MARGIN_Y, PHOTO_ZOOM_COLOR, FONT_SIZE, "%.0f%%", zoom * 100.0f);
// End drawing
endDrawing();
}
vita2d_wait_rendering_done();
vita2d_free_texture(tex);
free(buffer);
return 0;
}