mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-28 13:47:58 +00:00
398 lines
8.8 KiB
C
398 lines
8.8 KiB
C
#include <stdio.h>
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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 <assert.h>
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#include <boolean.h>
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#include <lists/dir_list.h>
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#include <file/file_path.h>
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#include <compat/strl.h>
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#define STB_IMAGE_IMPLEMENTATION
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#ifdef RARCH_INTERNAL
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#define STBI_NO_PSD
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#define STBI_NO_GIF
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#define STBI_NO_HDR
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#define STBI_NO_PIC
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#define STBI_NO_PNM
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#define STBI_SUPPORT_ZLIB
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#endif
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#include "../../deps/stb/stb_image.h"
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#ifdef RARCH_INTERNAL
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#include "internal_cores.h"
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#include "../../libretro.h"
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#define IMAGE_CORE_PREFIX(s) libretro_imageviewer_##s
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#else
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#include "libretro.h"
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#define IMAGE_CORE_PREFIX(s) s
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#endif
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static retro_log_printf_t IMAGE_CORE_PREFIX(log_cb);
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static retro_video_refresh_t IMAGE_CORE_PREFIX(video_cb);
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static retro_input_poll_t IMAGE_CORE_PREFIX(input_poll_cb);
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static retro_input_state_t IMAGE_CORE_PREFIX(input_state_cb);
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static retro_audio_sample_batch_t IMAGE_CORE_PREFIX(audio_batch_cb);
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static retro_environment_t IMAGE_CORE_PREFIX(environ_cb);
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static bool process_new_image;
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static uint32_t* image_buffer;
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static int image_width;
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static int image_height;
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static bool image_uploaded;
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static bool slideshow_enable;
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struct string_list *file_list;
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#if 0
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#define DUPE_TEST
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#endif
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#ifdef RARCH_INTERNAL
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static const char* IMAGE_CORE_PREFIX(valid_extensions) = "jpg|jpeg|png|bmp|tga";
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#else
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static const char* IMAGE_CORE_PREFIX(valid_extensions) = "jpg|jpeg|png|bmp|psd|tga|gif|hdr|pic|ppm|pgm";
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#endif
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void IMAGE_CORE_PREFIX(retro_get_system_info)(struct retro_system_info *info)
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{
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info->library_name = "image display";
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info->library_version = "v0.1";
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info->need_fullpath = true;
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info->block_extract = false;
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info->valid_extensions = IMAGE_CORE_PREFIX(valid_extensions);
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}
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void IMAGE_CORE_PREFIX(retro_get_system_av_info)(struct retro_system_av_info *info)
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{
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info->geometry.base_width = image_width;
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info->geometry.base_height = image_height;
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info->geometry.max_width = image_width;
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info->geometry.max_height = image_height;
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info->geometry.aspect_ratio = 0;
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info->timing.fps = 60.0;
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info->timing.sample_rate = 44100.0;
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}
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void IMAGE_CORE_PREFIX(retro_init)(void)
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{
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struct retro_log_callback log;
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if (IMAGE_CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
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IMAGE_CORE_PREFIX(log_cb) = log.log;
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else
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IMAGE_CORE_PREFIX(log_cb) = NULL;
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image_buffer = NULL;
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image_width = 0;
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image_height = 0;
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}
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void IMAGE_CORE_PREFIX(retro_deinit)(void)
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{
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if (image_buffer)
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free(image_buffer);
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image_buffer = NULL;
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image_width = 0;
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image_height = 0;
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}
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void IMAGE_CORE_PREFIX(retro_set_environment)(retro_environment_t cb)
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{
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static const struct retro_variable vars[] = {
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{ NULL, NULL },
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};
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IMAGE_CORE_PREFIX(environ_cb) = cb;
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cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
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}
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void IMAGE_CORE_PREFIX(retro_set_video_refresh)(retro_video_refresh_t cb)
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{
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IMAGE_CORE_PREFIX(video_cb) = cb;
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}
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void IMAGE_CORE_PREFIX(retro_set_audio_sample)(retro_audio_sample_t unused)
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{
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}
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void IMAGE_CORE_PREFIX(retro_set_audio_sample_batch)(retro_audio_sample_batch_t cb)
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{
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IMAGE_CORE_PREFIX(audio_batch_cb) = cb;
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}
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void IMAGE_CORE_PREFIX(retro_set_input_poll)(retro_input_poll_t cb)
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{
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IMAGE_CORE_PREFIX(input_poll_cb) = cb;
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}
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void IMAGE_CORE_PREFIX(retro_set_input_state)(retro_input_state_t cb)
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{
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IMAGE_CORE_PREFIX(input_state_cb) = cb;
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}
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void IMAGE_CORE_PREFIX(retro_set_controller_port_device)(unsigned a, unsigned b)
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{
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}
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void IMAGE_CORE_PREFIX(retro_reset)(void)
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{
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image_uploaded = false;
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}
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size_t IMAGE_CORE_PREFIX(retro_serialize_size)(void)
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{
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return 0;
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}
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bool IMAGE_CORE_PREFIX(retro_serialize)(void *data, size_t size)
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{
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(void)data;
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(void)size;
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return false;
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}
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bool IMAGE_CORE_PREFIX(retro_unserialize)(const void *data, size_t size)
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{
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(void)data;
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(void)size;
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return false;
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}
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void IMAGE_CORE_PREFIX(retro_cheat_reset)(void)
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{
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}
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void IMAGE_CORE_PREFIX(retro_cheat_set)(unsigned a, bool b, const char * c)
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{
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}
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static bool imageviewer_load(const char *path, int image_index)
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{
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int comp;
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if (image_buffer)
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free(image_buffer);
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image_buffer = (uint32_t*)stbi_load(
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path,
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&image_width,
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&image_height,
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&comp,
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4);
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if (!image_buffer)
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return false;
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process_new_image = true;
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return true;
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}
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bool IMAGE_CORE_PREFIX(retro_load_game)(const struct retro_game_info *info)
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{
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enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
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char *dir = strdup(info->path);
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slideshow_enable = false;
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path_basedir(dir);
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file_list = dir_list_new(dir, IMAGE_CORE_PREFIX(valid_extensions),
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false,false);
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dir_list_sort(file_list, false);
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free(dir);
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if (!IMAGE_CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
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{
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if (IMAGE_CORE_PREFIX(log_cb))
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IMAGE_CORE_PREFIX(log_cb)(RETRO_LOG_INFO, "XRGB8888 is not supported.\n");
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return false;
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}
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if (!imageviewer_load(info->path, 0))
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return false;
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return true;
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}
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bool IMAGE_CORE_PREFIX(retro_load_game_special)(unsigned a, const struct retro_game_info *b, size_t c)
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{
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return false;
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}
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void IMAGE_CORE_PREFIX(retro_unload_game)(void)
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{
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if (image_buffer)
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free(image_buffer);
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image_buffer = NULL;
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image_width = 0;
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image_height = 0;
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}
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unsigned IMAGE_CORE_PREFIX(retro_get_region)(void)
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{
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return RETRO_REGION_NTSC;
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}
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void *IMAGE_CORE_PREFIX(retro_get_memory_data)(unsigned id)
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{
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return NULL;
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}
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size_t IMAGE_CORE_PREFIX(retro_get_memory_size)(unsigned id)
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{
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return 0;
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}
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void IMAGE_CORE_PREFIX(retro_run)(void)
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{
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bool first_image = false;
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bool last_image = false;
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bool backwards_image = false;
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bool forward_image = false;
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bool load_image = false;
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bool next_image = false;
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bool prev_image = false;
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static int frames = 0;
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static int image_index = 0;
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uint16_t input = 0;
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static uint16_t previnput;
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uint16_t realinput = 0;
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int i;
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IMAGE_CORE_PREFIX(input_poll_cb)();
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if (slideshow_enable)
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{
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if ((frames % 120 == 0) && image_index < (signed)(file_list->size - 1))
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next_image = true;
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}
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for (i=0;i<16;i++)
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{
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if (IMAGE_CORE_PREFIX(input_state_cb)(0, RETRO_DEVICE_JOYPAD, 0, i))
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{
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realinput |= 1<<i;
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}
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}
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input = realinput & ~previnput;
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previnput = realinput;
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if (input & (1<<RETRO_DEVICE_ID_JOYPAD_UP))
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{
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if ((image_index + 5) < (signed)(file_list->size - 1))
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forward_image = true;
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else
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last_image = true;
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}
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if (input & (1<<RETRO_DEVICE_ID_JOYPAD_DOWN))
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{
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if ((image_index - 5) > 0)
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backwards_image = true;
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else
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first_image = true;
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}
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if (input & (1<<RETRO_DEVICE_ID_JOYPAD_LEFT))
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{
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if (image_index > 0)
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prev_image = true;
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}
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if (input & (1<<RETRO_DEVICE_ID_JOYPAD_RIGHT))
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{
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if (image_index < (signed)(file_list->size - 1))
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next_image = true;
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}
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if (input & (1<<RETRO_DEVICE_ID_JOYPAD_Y))
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{
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slideshow_enable = !slideshow_enable;
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}
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if (prev_image)
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{
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image_index--;
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load_image = true;
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}
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else if (next_image)
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{
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image_index++;
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load_image = true;
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}
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else if (backwards_image)
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{
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image_index -= 5;
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load_image = true;
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}
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else if (forward_image)
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{
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image_index += 5;
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load_image = true;
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}
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else if (first_image)
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{
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image_index = 0;
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load_image = true;
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}
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else if (last_image)
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{
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image_index = file_list->size - 1;
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load_image = true;
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}
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if (load_image)
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{
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if (!imageviewer_load(file_list->elems[image_index].data, image_index))
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{
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IMAGE_CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_SHUTDOWN, NULL);
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}
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}
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if (process_new_image)
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{
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/* RGBA > XRGB8888 */
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struct retro_system_av_info info;
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uint32_t *buf = &image_buffer[0];
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uint32_t *end = buf + (image_width*image_height*sizeof(uint32_t))/4;
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while(buf < end)
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{
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uint32_t pixel = *buf;
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*buf = (pixel & 0xff00ff00) | ((pixel << 16) & 0x00ff0000) | ((pixel >> 16) & 0xff);
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buf++;
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}
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IMAGE_CORE_PREFIX(retro_get_system_av_info)(&info);
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IMAGE_CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
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process_new_image = false;
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}
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#ifdef DUPE_TEST
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if (!image_uploaded)
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{
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IMAGE_CORE_PREFIX(video_cb)(image_buffer, image_width, image_height, image_width * sizeof(uint32_t));
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image_uploaded = true;
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}
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else
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IMAGE_CORE_PREFIX(video_cb)(NULL, image_width, image_height, image_width * sizeof(uint32_t));
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#else
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IMAGE_CORE_PREFIX(video_cb)(image_buffer, image_width, image_height, image_width * sizeof(uint32_t));
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#endif
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frames++;
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}
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unsigned IMAGE_CORE_PREFIX(retro_api_version)(void)
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{
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return RETRO_API_VERSION;
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}
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