mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-28 02:30:35 +00:00
414 lines
10 KiB
C
414 lines
10 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2016 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <file/nbio.h>
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#include <formats/image.h>
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#include <compat/strl.h>
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#include <retro_assert.h>
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#include <retro_miscellaneous.h>
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#include <lists/string_list.h>
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#include <rhash.h>
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#ifdef HAVE_MENU
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#include "../menu/menu_driver.h"
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#endif
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#include "tasks_internal.h"
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#include "../verbosity.h"
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#define CB_MENU_WALLPAPER 0xb476e505U
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#define CB_MENU_THUMBNAIL 0x82f93a21U
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enum image_status_enum
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{
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IMAGE_STATUS_POLL = 0,
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IMAGE_STATUS_TRANSFER,
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IMAGE_STATUS_TRANSFER_PARSE,
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IMAGE_STATUS_PROCESS_TRANSFER,
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IMAGE_STATUS_PROCESS_TRANSFER_PARSE,
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IMAGE_STATUS_TRANSFER_PARSE_FREE
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};
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typedef struct nbio_image_handle nbio_image_handle_t;
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struct nbio_image_handle
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{
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struct texture_image ti;
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bool is_blocking;
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bool is_blocking_on_processing;
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bool is_finished;
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transfer_cb_t cb;
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void *handle;
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size_t size;
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unsigned processing_pos_increment;
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unsigned pos_increment;
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int processing_final_state;
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enum image_status_enum status;
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};
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static int cb_image_menu_upload_generic(void *data, size_t len)
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{
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unsigned r_shift, g_shift, b_shift, a_shift;
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nbio_handle_t *nbio = (nbio_handle_t*)data;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (!nbio || !image)
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return -1;
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if (image->processing_final_state == IMAGE_PROCESS_ERROR ||
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image->processing_final_state == IMAGE_PROCESS_ERROR_END)
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return -1;
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image_texture_set_color_shifts(&r_shift, &g_shift, &b_shift,
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&a_shift);
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image_texture_color_convert(r_shift, g_shift, b_shift,
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a_shift, &image->ti);
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image->is_blocking_on_processing = false;
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image->is_blocking = true;
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image->is_finished = true;
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nbio->is_finished = true;
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return 0;
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}
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static int task_image_iterate_transfer_parse(nbio_handle_t *nbio)
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{
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (image->handle && image->cb)
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{
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size_t len = 0;
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image->cb(nbio, len);
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}
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return 0;
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}
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static int task_image_process(
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nbio_handle_t *nbio,
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unsigned *width,
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unsigned *height)
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{
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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int retval = image_transfer_process(
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image->handle,
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nbio->image_type,
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&image->ti.pixels, image->size, width, height);
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if (retval == IMAGE_PROCESS_ERROR)
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return IMAGE_PROCESS_ERROR;
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image->ti.width = *width;
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image->ti.height = *height;
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return retval;
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}
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static int cb_image_menu_generic(nbio_handle_t *nbio)
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{
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unsigned width = 0, height = 0;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (!nbio || !image)
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return -1;
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switch (task_image_process(nbio,
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&width, &height))
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{
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case IMAGE_PROCESS_ERROR:
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case IMAGE_PROCESS_ERROR_END:
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return -1;
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default:
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break;
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}
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image->is_blocking_on_processing = true;
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image->is_finished = false;
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return 0;
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}
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static int cb_image_menu_thumbnail(void *data, size_t len)
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{
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nbio_handle_t *nbio = (nbio_handle_t*)data;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (cb_image_menu_generic(nbio) != 0)
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return -1;
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image->cb = &cb_image_menu_upload_generic;
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return 0;
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}
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static int task_image_iterate_process_transfer(nbio_handle_t *nbio)
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{
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unsigned i, width = 0, height = 0;
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int retval = 0;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (!nbio || !image)
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return -1;
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for (i = 0; i < image->processing_pos_increment; i++)
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{
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retval = task_image_process(nbio,
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&width, &height);
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if (retval != IMAGE_PROCESS_NEXT)
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break;
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}
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if (retval == IMAGE_PROCESS_NEXT)
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return 0;
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image->processing_final_state = retval;
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return -1;
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}
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static int task_image_iterate_transfer(nbio_handle_t *nbio)
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{
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unsigned i;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (!nbio || !image)
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goto error;
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if (image->is_finished)
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return 0;
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for (i = 0; i < image->pos_increment; i++)
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{
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if (!image_transfer_iterate(image->handle, nbio->image_type))
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goto error;
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}
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return 0;
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error:
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return -1;
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}
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static void rarch_task_image_load_free_internal(nbio_handle_t *nbio)
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{
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (image) {
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image_transfer_free(image->handle, nbio->image_type);
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image->handle = NULL;
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image->cb = NULL;
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free(image);
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}
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}
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static int cb_nbio_generic(nbio_handle_t *nbio, size_t *len)
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{
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void *ptr = NULL;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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if (!image || !image->handle)
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goto error;
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ptr = nbio_get_ptr(nbio->handle, len);
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if (!ptr)
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goto error;
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image_transfer_set_buffer_ptr(image->handle, nbio->image_type, ptr);
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image->size = *len;
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image->pos_increment = (*len / 2) ? (*len / 2) : 1;
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image->processing_pos_increment = (*len / 4) ? (*len / 4) : 1;
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if (!image_transfer_start(image->handle, nbio->image_type))
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goto error;
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image->is_blocking = false;
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image->is_finished = false;
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nbio->is_finished = true;
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return 0;
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error:
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rarch_task_image_load_free_internal(nbio);
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return -1;
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}
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static int cb_nbio_image_menu_thumbnail(void *data, size_t len)
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{
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nbio_image_handle_t *image = NULL;
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void *handle = NULL;
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nbio_handle_t *nbio = (nbio_handle_t*)data;
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if (!nbio)
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goto error;
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handle = image_transfer_new(nbio->image_type);
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if (!handle)
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goto error;
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image = (nbio_image_handle_t*)nbio->data;
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image->handle = handle;
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image->size = len;
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image->cb = &cb_image_menu_thumbnail;
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return cb_nbio_generic(nbio, &len);
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error:
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return -1;
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}
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bool rarch_task_image_load_handler(retro_task_t *task)
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{
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nbio_handle_t *nbio = (nbio_handle_t*)task->state;
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nbio_image_handle_t *image = (nbio_image_handle_t*)nbio->data;
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switch (image->status)
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{
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case IMAGE_STATUS_PROCESS_TRANSFER:
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if (task_image_iterate_process_transfer(nbio) == -1)
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image->status = IMAGE_STATUS_PROCESS_TRANSFER_PARSE;
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break;
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case IMAGE_STATUS_TRANSFER_PARSE:
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task_image_iterate_transfer_parse(nbio);
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if (image->is_blocking_on_processing)
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image->status = IMAGE_STATUS_PROCESS_TRANSFER;
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break;
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case IMAGE_STATUS_TRANSFER:
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if (!image->is_blocking)
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if (task_image_iterate_transfer(nbio) == -1)
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image->status = IMAGE_STATUS_TRANSFER_PARSE;
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break;
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case IMAGE_STATUS_PROCESS_TRANSFER_PARSE:
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task_image_iterate_transfer_parse(nbio);
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if (!image->is_finished)
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break;
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case IMAGE_STATUS_TRANSFER_PARSE_FREE:
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case IMAGE_STATUS_POLL:
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default:
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break;
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}
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if ( nbio->is_finished
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&& image->is_finished
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&& !task->cancelled)
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{
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task->task_data = malloc(sizeof(image->ti));
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if (task->task_data)
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memcpy(task->task_data, &image->ti, sizeof(image->ti));
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return false;
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}
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return true;
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}
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bool rarch_task_push_image_load(const char *fullpath,
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const char *type, retro_task_callback_t cb, void *user_data)
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{
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nbio_handle_t *nbio = NULL;
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retro_task_t *t = NULL;
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uint32_t cb_type_hash = djb2_calculate(type);
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struct nbio_t *handle = NULL;
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nbio_image_handle_t *image = NULL;
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switch (cb_type_hash)
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{
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case CB_MENU_WALLPAPER:
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case CB_MENU_THUMBNAIL:
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break;
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default:
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goto error_msg;
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}
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t = (retro_task_t*)calloc(1, sizeof(*t));
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if (!t)
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goto error_msg;
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nbio = (nbio_handle_t*)calloc(1, sizeof(*nbio));
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if (!nbio)
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goto error;
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handle = nbio_open(fullpath, NBIO_READ);
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if (!handle)
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goto error;
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nbio->handle = handle;
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image = (nbio_image_handle_t*)calloc(1, sizeof(*image));
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if (!image)
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goto error;
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image->status = IMAGE_STATUS_TRANSFER;
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nbio->data = (nbio_image_handle_t*)image;
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nbio->is_finished = false;
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nbio->cb = &cb_nbio_image_menu_thumbnail;
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nbio->status = NBIO_STATUS_TRANSFER;
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if (strstr(fullpath, ".png"))
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nbio->image_type = IMAGE_TYPE_PNG;
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else if (strstr(fullpath, ".jpeg") || strstr(fullpath, ".jpg"))
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nbio->image_type = IMAGE_TYPE_JPEG;
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else if (strstr(fullpath, ".bmp"))
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nbio->image_type = IMAGE_TYPE_BMP;
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else if (strstr(fullpath, ".tga"))
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nbio->image_type = IMAGE_TYPE_TGA;
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nbio_begin_read(handle);
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t->state = nbio;
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t->handler = rarch_task_file_load_handler;
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t->cleanup = rarch_task_image_load_free;
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t->callback = cb;
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t->user_data = user_data;
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task_queue_ctl(TASK_QUEUE_CTL_PUSH, t);
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return true;
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error:
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rarch_task_image_load_free(t);
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free(t);
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error_msg:
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RARCH_ERR("[image load] Failed to open '%s': %s.\n",
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fullpath, strerror(errno));
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return false;
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}
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void rarch_task_image_load_free(retro_task_t *task)
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{
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nbio_handle_t *nbio = task ? (nbio_handle_t*)task->state : NULL;
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if (nbio) {
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rarch_task_image_load_free_internal(nbio);
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nbio_free(nbio->handle);
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nbio->handle = NULL;
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free(nbio);
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}
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}
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