mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-05 23:16:55 +00:00
388 lines
11 KiB
C
388 lines
11 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2017 - 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 <stdlib.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 <string/stdstring.h>
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#include <retro_miscellaneous.h>
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#include "../gfx/video_driver.h"
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#include "../file_path_special.h"
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#include "../verbosity.h"
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#include "task_file_transfer.h"
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#include "tasks_internal.h"
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enum image_status_enum
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{
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IMAGE_STATUS_TRANSFER = 0,
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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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};
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struct nbio_image_handle
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{
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enum image_type_enum type;
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enum image_status_enum status;
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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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int processing_final_state;
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unsigned processing_pos_increment;
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unsigned pos_increment;
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size_t size;
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void *handle;
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transfer_cb_t cb;
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struct texture_image ti;
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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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struct nbio_image_handle *image = (struct nbio_image_handle*)nbio->data;
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if (!image)
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return -1;
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switch (image->processing_final_state)
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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_texture_set_color_shifts(&r_shift, &g_shift, &b_shift,
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&a_shift, &image->ti);
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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_process(
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struct nbio_image_handle *image,
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unsigned *width,
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unsigned *height)
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{
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int retval = image_transfer_process(
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image->handle,
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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_thumbnail(void *data, size_t len)
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{
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unsigned width = 0;
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unsigned height = 0;
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nbio_handle_t *nbio = (nbio_handle_t*)data;
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struct nbio_image_handle *image = (struct nbio_image_handle*)nbio->data;
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int retval = image ? task_image_process(image, &width, &height) : IMAGE_PROCESS_ERROR;
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if ((retval == IMAGE_PROCESS_ERROR) ||
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(retval == IMAGE_PROCESS_ERROR_END)
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)
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return -1;
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image->is_blocking_on_processing = (retval != IMAGE_PROCESS_END);
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image->is_finished = (retval == IMAGE_PROCESS_END);
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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(struct nbio_image_handle *image)
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{
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unsigned i;
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int retval = 0;
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unsigned width = 0;
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unsigned height = 0;
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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(image,
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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 void task_image_cleanup(nbio_handle_t *nbio)
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{
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struct nbio_image_handle *image = (struct nbio_image_handle*)nbio->data;
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if (image)
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{
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image_transfer_free(image->handle, image->type);
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image->handle = NULL;
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image->cb = NULL;
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}
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if (!string_is_empty(nbio->path))
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free(nbio->path);
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if (nbio->data)
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free(nbio->data);
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nbio_free(nbio->handle);
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nbio->path = NULL;
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nbio->data = NULL;
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nbio->handle = NULL;
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}
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static void 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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{
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task_image_cleanup(nbio);
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free(nbio);
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}
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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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void *ptr = NULL;
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nbio_handle_t *nbio = (nbio_handle_t*)data;
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struct nbio_image_handle *image = nbio ?
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(struct nbio_image_handle*)nbio->data : NULL;
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void *handle = image ? image_transfer_new(image->type) : NULL;
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if (!handle)
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return -1;
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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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ptr = nbio_get_ptr(nbio->handle, &len);
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image_transfer_set_buffer_ptr(image->handle, image->type, ptr);
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image->size = len;
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image->pos_increment = (len / 2) ?
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((unsigned)(len / 2)) : 1;
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image->processing_pos_increment = (len / 4) ?
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((unsigned)(len / 4)) : 1;
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if (!image_transfer_start(image->handle, image->type))
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{
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task_image_cleanup(nbio);
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return -1;
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}
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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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}
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bool task_image_load_handler(retro_task_t *task)
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{
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unsigned i;
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nbio_handle_t *nbio = (nbio_handle_t*)task->state;
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struct nbio_image_handle *image = (struct nbio_image_handle*)nbio->data;
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if (image)
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{
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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 (image && task_image_iterate_process_transfer(image) == -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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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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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 && !image->is_finished)
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{
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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, image->type))
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{
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image->status = IMAGE_STATUS_TRANSFER_PARSE;
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break;
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}
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}
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}
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break;
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case IMAGE_STATUS_PROCESS_TRANSFER_PARSE:
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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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if (!image->is_finished)
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break;
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}
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}
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if ( nbio->is_finished
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&& (image && image->is_finished )
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&& (!task_get_cancelled(task)))
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{
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struct texture_image *img = (struct texture_image*)malloc(sizeof(struct texture_image));
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if (img)
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{
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img->width = image->ti.width;
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img->height = image->ti.height;
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img->pixels = image->ti.pixels;
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img->supports_rgba = image->ti.supports_rgba;
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}
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task_set_data(task, img);
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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 task_push_image_load(const char *fullpath, 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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struct nbio_image_handle *image = NULL;
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retro_task_t *t = task_init();
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if (!t)
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goto error_msg;
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nbio = (nbio_handle_t*)malloc(sizeof(*nbio));
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if (!nbio)
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goto error;
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nbio->type = NBIO_TYPE_NONE;
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nbio->is_finished = false;
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nbio->status = NBIO_STATUS_INIT;
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nbio->pos_increment = 0;
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nbio->status_flags = 0;
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nbio->data = NULL;
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nbio->path = strdup(fullpath);
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nbio->handle = NULL;
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nbio->msg_queue = NULL;
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nbio->cb = &cb_nbio_image_menu_thumbnail;
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if (video_driver_supports_rgba())
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BIT32_SET(nbio->status_flags, NBIO_FLAG_IMAGE_SUPPORTS_RGBA);
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image = (struct nbio_image_handle*)malloc(sizeof(*image));
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if (!image)
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goto error;
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image->type = IMAGE_TYPE_NONE;
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image->status = IMAGE_STATUS_TRANSFER;
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image->is_blocking = false;
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image->is_blocking_on_processing = false;
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image->is_finished = false;
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image->processing_final_state = 0;
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image->processing_pos_increment = 0;
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image->pos_increment = 0;
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image->size = 0;
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image->handle = NULL;
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image->ti.width = 0;
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image->ti.height = 0;
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image->ti.pixels = NULL;
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image->ti.supports_rgba = false;
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if (strstr(fullpath, file_path_str(FILE_PATH_PNG_EXTENSION)))
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{
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nbio->type = NBIO_TYPE_PNG;
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image->type = IMAGE_TYPE_PNG;
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}
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else if (strstr(fullpath, file_path_str(FILE_PATH_JPEG_EXTENSION))
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|| strstr(fullpath, file_path_str(FILE_PATH_JPG_EXTENSION)))
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{
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nbio->type = NBIO_TYPE_JPEG;
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image->type = IMAGE_TYPE_JPEG;
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}
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else if (strstr(fullpath, file_path_str(FILE_PATH_BMP_EXTENSION)))
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{
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nbio->type = NBIO_TYPE_BMP;
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image->type = IMAGE_TYPE_BMP;
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}
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else if (strstr(fullpath, file_path_str(FILE_PATH_TGA_EXTENSION)))
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{
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nbio->type = NBIO_TYPE_TGA;
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image->type = IMAGE_TYPE_TGA;
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}
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nbio->data = (struct nbio_image_handle*)image;
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t->state = nbio;
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t->handler = task_file_load_handler;
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t->cleanup = 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_push(t);
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return true;
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error:
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task_image_load_free(t);
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free(t);
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if (nbio)
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{
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if (!string_is_empty(nbio->path))
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free(nbio->path);
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free(nbio);
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}
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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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