mirror of
https://github.com/libretro/RetroArch
synced 2025-02-04 03:40:03 +00:00
e90b7e6a03
ingame menu - another problem - swap occurs at end of frame function - this interferes with the swap done later on in the ingame menu, leading to flickered libdbgfont text. We will somehow need to divorce the swap from the main frame function
477 lines
10 KiB
C
477 lines
10 KiB
C
/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES 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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* SSNES 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 SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SSNES_GENERAL_H
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#define __SSNES_GENERAL_H
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#include "boolean.h"
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#include <stdio.h>
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#include <time.h>
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#include <limits.h>
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#include <setjmp.h>
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#include "driver.h"
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#include "record/ffemu.h"
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#include "message.h"
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#include "rewind.h"
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#include "movie.h"
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#include "autosave.h"
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#include "dynamic.h"
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#include "cheats.h"
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#include "audio/ext/ssnes_dsp.h"
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#include "strl.h"
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#ifdef __CELLOS_LV2__
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#include <sys/timer.h>
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#endif
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#ifdef XENON
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#include <time/time.h>
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#endif
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#if defined(XENON) || defined(__CELLOS_LV2__)
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#undef PATH_MAX
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#define PATH_MAX 4096
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_NETPLAY
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#include "netplay.h"
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#endif
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#include "audio/hermite.h"
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#if defined(_WIN32) && !defined(_XBOX)
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include "msvc/msvc_compat.h"
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#elif defined(_XBOX)
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#include <xtl.h>
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#include "360/msvc_compat.h"
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#endif
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#define MAX_PLAYERS 5
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#define MAX_BINDS (SSNES_BIND_LIST_END + 1)
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#define SSNES_NO_JOYPAD 0xFFFF
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enum ssnes_shader_type
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{
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SSNES_SHADER_CG,
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SSNES_SHADER_BSNES,
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SSNES_SHADER_AUTO,
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SSNES_SHADER_NONE
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};
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// All config related settings go here.
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struct settings
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{
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struct
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{
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char driver[32];
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float xscale;
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float yscale;
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bool fullscreen;
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unsigned fullscreen_x;
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unsigned fullscreen_y;
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bool vsync;
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bool smooth;
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bool force_aspect;
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bool crop_overscan;
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float aspect_ratio;
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char cg_shader_path[PATH_MAX];
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char bsnes_shader_path[PATH_MAX];
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char filter_path[PATH_MAX];
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enum ssnes_shader_type shader_type;
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float refresh_rate;
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bool render_to_texture;
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float fbo_scale_x;
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float fbo_scale_y;
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char second_pass_shader[PATH_MAX];
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bool second_pass_smooth;
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char shader_dir[PATH_MAX];
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char font_path[PATH_MAX];
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unsigned font_size;
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bool font_enable;
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bool font_scale;
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float msg_pos_x;
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float msg_pos_y;
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float msg_color_r;
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float msg_color_g;
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float msg_color_b;
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bool force_16bit;
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bool disable_composition;
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bool hires_record;
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bool post_filter_record;
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char external_driver[PATH_MAX];
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} video;
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struct
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{
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char driver[32];
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bool enable;
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unsigned out_rate;
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float in_rate;
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float rate_step;
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char device[PATH_MAX];
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unsigned latency;
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bool sync;
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char dsp_plugin[PATH_MAX];
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char external_driver[PATH_MAX];
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} audio;
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struct
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{
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char driver[32];
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struct snes_keybind binds[MAX_PLAYERS][MAX_BINDS];
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float axis_threshold;
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unsigned joypad_map[MAX_PLAYERS];
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bool netplay_client_swap_input;
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} input;
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char libsnes[PATH_MAX];
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char cheat_database[PATH_MAX];
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char cheat_settings_path[PATH_MAX];
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char screenshot_directory[PATH_MAX];
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bool rewind_enable;
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size_t rewind_buffer_size;
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unsigned rewind_granularity;
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bool pause_nonactive;
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unsigned autosave_interval;
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bool block_sram_overwrite;
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bool savestate_auto_index;
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};
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// Settings and/or global state that is specific to a console-style implementation.
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#ifdef SSNES_CONSOLE
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struct console_settings
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{
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bool block_config_read;
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bool return_to_multiman_enable;
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uint32_t *supported_resolutions;
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uint32_t supported_resolutions_count;
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uint32_t current_resolution_index;
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uint32_t current_resolution_id;
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uint32_t initial_resolution_id;
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bool screenshots_enable;
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bool in_game_menu;
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char rom_path[PATH_MAX];
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};
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#endif
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enum ssnes_game_type
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{
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SSNES_CART_NORMAL = 0,
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SSNES_CART_SGB,
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SSNES_CART_BSX,
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SSNES_CART_BSX_SLOTTED,
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SSNES_CART_SUFAMI
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};
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// All run-time- / command line flag-related globals go here.
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struct global
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{
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bool verbose;
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bool audio_active;
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bool video_active;
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bool force_fullscreen;
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bool has_mouse[2];
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bool has_scope[2];
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bool has_justifier;
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bool has_justifiers;
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bool has_multitap;
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bool disconnect_device[2];
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FILE *rom_file;
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enum ssnes_game_type game_type;
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uint32_t cart_crc;
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char gb_rom_path[PATH_MAX];
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char bsx_rom_path[PATH_MAX];
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char sufami_rom_path[2][PATH_MAX];
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bool has_set_save_path;
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bool has_set_state_path;
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#ifdef HAVE_CONFIGFILE
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char config_path[PATH_MAX];
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#endif
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char basename[PATH_MAX];
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char savefile_name_srm[PATH_MAX];
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char savefile_name_rtc[PATH_MAX]; // Make sure that fill_pathname has space.
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char savefile_name_psrm[PATH_MAX];
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char savefile_name_asrm[PATH_MAX];
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char savefile_name_bsrm[PATH_MAX];
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char savestate_name[PATH_MAX];
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char xml_name[PATH_MAX];
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bool ups_pref;
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bool bps_pref;
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char ups_name[PATH_MAX];
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char bps_name[PATH_MAX];
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unsigned state_slot;
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struct
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{
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struct snes_geometry geom;
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unsigned pitch; // If 0, has classic libsnes semantics.
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char fullpath[PATH_MAX];
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struct snes_system_timing timing;
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bool timing_set;
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bool need_fullpath;
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} system;
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struct
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{
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hermite_resampler_t *source;
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float *data;
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size_t data_ptr;
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size_t chunk_size;
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size_t nonblock_chunk_size;
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size_t block_chunk_size;
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double src_ratio;
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bool use_float;
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bool mute;
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float *outsamples;
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int16_t *conv_outsamples;
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int16_t *rewind_buf;
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size_t rewind_ptr;
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size_t rewind_size;
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dylib_t dsp_lib;
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const ssnes_dsp_plugin_t *dsp_plugin;
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void *dsp_handle;
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} audio_data;
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struct
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{
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bool active;
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uint32_t *buffer;
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uint32_t *colormap;
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unsigned pitch;
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dylib_t lib;
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unsigned scale;
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void (*psize)(unsigned *width, unsigned *height);
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void (*prender)(uint32_t *colormap, uint32_t *output, unsigned outpitch,
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const uint16_t *input, unsigned pitch, unsigned width, unsigned height);
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} filter;
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msg_queue_t *msg_queue;
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// Rewind support.
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state_manager_t *state_manager;
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void *state_buf;
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size_t state_size;
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bool frame_is_reverse;
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// Movie playback/recording support.
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struct
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{
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bsv_movie_t *movie;
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char movie_path[PATH_MAX];
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bool movie_playback;
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// Immediate playback/recording.
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char movie_start_path[PATH_MAX];
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bool movie_start_recording;
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bool movie_start_playback;
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bool movie_end;
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} bsv;
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bool sram_load_disable;
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bool sram_save_disable;
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bool use_sram;
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// Pausing support
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bool is_paused;
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bool is_oneshot;
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// Autosave support.
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autosave_t *autosave[2];
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// Netplay.
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#ifdef HAVE_NETPLAY
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netplay_t *netplay;
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char netplay_server[PATH_MAX];
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bool netplay_enable;
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bool netplay_is_client;
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bool netplay_is_spectate;
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unsigned netplay_sync_frames;
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uint16_t netplay_port;
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#endif
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// FFmpeg record.
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#ifdef HAVE_FFMPEG
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ffemu_t *rec;
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char record_path[PATH_MAX];
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bool recording;
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unsigned record_width;
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unsigned record_height;
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#endif
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struct
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{
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const uint16_t *data;
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unsigned width;
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unsigned height;
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} frame_cache;
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char title_buf[64];
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struct
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{
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char **elems;
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size_t size;
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size_t ptr;
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} shader_dir;
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char sha256[64 + 1];
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#ifdef HAVE_XML
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cheat_manager_t *cheat;
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#endif
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bool error_in_init;
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char error_string[1024];
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jmp_buf error_sjlj_context;
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};
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void parse_config(void);
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void config_set_defaults(void);
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void ssnes_main_clear_state(void);
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int ssnes_main_init(int argc, char *argv[]);
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bool ssnes_main_iterate(void);
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void ssnes_main_deinit(void);
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void ssnes_render_cached_frame(void);
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extern struct settings g_settings;
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extern struct global g_extern;
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#ifdef SSNES_CONSOLE
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extern struct console_settings g_console;
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#endif
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#define SSNES_LOG(...) do { \
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if (g_extern.verbose) \
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fprintf(stderr, "SSNES: " __VA_ARGS__); \
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fflush(stderr); \
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} while (0)
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#define SSNES_ERR(...) do { \
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fprintf(stderr, "SSNES [ERROR] :: " __VA_ARGS__); \
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fflush(stderr); \
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} while (0)
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#define SSNES_WARN(...) do { \
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fprintf(stderr, "SSNES [WARN] :: " __VA_ARGS__); \
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fflush(stderr); \
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} while (0)
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#ifndef max
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#define max(a, b) ((a) > (b) ? (a) : (b))
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#endif
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#ifndef min
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#define min(a, b) ((a) < (b) ? (a) : (b))
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#endif
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#define SSNES_SCALE_BASE 256
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static inline uint32_t next_pow2(uint32_t v)
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{
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v--;
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v |= v >> 1;
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v |= v >> 2;
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v |= v >> 4;
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v |= v >> 8;
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v |= v >> 16;
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v++;
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return v;
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}
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static inline uint8_t is_little_endian(void)
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{
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union
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{
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uint16_t x;
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uint8_t y[2];
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} u;
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u.x = 1;
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return u.y[0];
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}
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#ifdef GEKKO
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#include <unistd.h>
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#endif
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static inline void ssnes_sleep(unsigned msec)
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{
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#ifdef __CELLOS_LV2__
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sys_timer_usleep(1000 * msec);
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#elif defined(_WIN32)
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Sleep(msec);
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#elif defined(XENON)
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udelay(1000 * msec);
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#elif defined(GEKKO)
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usleep(1000 * msec);
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#else
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struct timespec tv = {0};
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tv.tv_sec = msec / 1000;
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tv.tv_nsec = (msec % 1000) * 1000000;
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nanosleep(&tv, NULL);
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#endif
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}
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#define ssnes_assert(cond) \
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if (!(cond)) { SSNES_ERR("Assertion failed at %s:%d!\n", __FILE__, __LINE__); exit(2); }
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static inline void ssnes_fail(int error_code, const char *error)
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{
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// We cannot longjmp unless we're in ssnes_main_init().
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// If not, something went very wrong, and we should just exit right away.
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ssnes_assert(g_extern.error_in_init);
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strlcpy(g_extern.error_string, error, sizeof(g_extern.error_string));
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longjmp(g_extern.error_sjlj_context, error_code);
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}
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#endif
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