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Set sane libretro defaults, add border settings (Closes #203), general libretro cleanup

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This commit is contained in:
Lior Halphon 2020-05-01 23:42:08 +03:00
parent c492022ae6
commit e5302a9b1e
1 changed files with 111 additions and 83 deletions
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188
libretro/libretro.c
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@ -29,13 +29,10 @@ static const char slash = '\\';
static const char slash = '/'; static const char slash = '/';
#endif #endif
#define VIDEO_WIDTH 160 #define MAX_VIDEO_WIDTH 256
#define VIDEO_HEIGHT 144 #define MAX_VIDEO_HEIGHT 224
#define VIDEO_PIXELS (VIDEO_WIDTH * VIDEO_HEIGHT) #define MAX_VIDEO_PIXELS (MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT)
#define SGB_VIDEO_WIDTH 256
#define SGB_VIDEO_HEIGHT 224
#define SGB_VIDEO_PIXELS (SGB_VIDEO_WIDTH * SGB_VIDEO_HEIGHT)
#define RETRO_MEMORY_GAMEBOY_1_SRAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM) #define RETRO_MEMORY_GAMEBOY_1_SRAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM)
#define RETRO_MEMORY_GAMEBOY_1_RTC ((2 << 8) | RETRO_MEMORY_RTC) #define RETRO_MEMORY_GAMEBOY_1_RTC ((2 << 8) | RETRO_MEMORY_RTC)
@ -92,7 +89,6 @@ static unsigned emulated_devices = 1;
static bool initialized = false; static bool initialized = false;
static unsigned screen_layout = 0; static unsigned screen_layout = 0;
static unsigned audio_out = 0; static unsigned audio_out = 0;
static unsigned sgb_border = 1;
static bool geometry_updated = false; static bool geometry_updated = false;
static bool link_cable_emulation = false; static bool link_cable_emulation = false;
@ -207,11 +203,11 @@ static retro_environment_t environ_cb;
/* variables for single cart mode */ /* variables for single cart mode */
static const struct retro_variable vars_single[] = { static const struct retro_variable vars_single[] = {
{ "sameboy_color_correction_mode", "Color correction; off|correct curves|emulate hardware|preserve brightness|reduce contrast" }, { "sameboy_color_correction_mode", "Color correction; emulate hardware|preserve brightness|reduce contrast|off|correct curves" },
{ "sameboy_high_pass_filter_mode", "High-pass filter; off|accurate|remove dc offset" }, { "sameboy_high_pass_filter_mode", "High-pass filter; accurate|remove dc offset|off" },
{ "sameboy_model", "Emulated model; Auto|Game Boy|Game Boy Color|Game Boy Advance|Super Game Boy|Super Game Boy 2" }, { "sameboy_model", "Emulated model; Auto|Game Boy|Game Boy Color|Game Boy Advance|Super Game Boy|Super Game Boy 2" },
{ "sameboy_border", "Super Game Boy border; enabled|disabled" }, { "sameboy_border", "Display border; Super Game Boy only|always|never" },
{ "sameboy_rumble", "Enable rumble; never|rumble-enabled games|all games" }, { "sameboy_rumble", "Enable rumble; rumble-enabled games|all games|never" },
{ NULL } { NULL }
}; };
@ -223,12 +219,12 @@ static const struct retro_variable vars_dual[] = {
{ "sameboy_audio_output", "Audio output; Game Boy #1|Game Boy #2" }, { "sameboy_audio_output", "Audio output; Game Boy #1|Game Boy #2" },
{ "sameboy_model_1", "Emulated model for Game Boy #1; Auto|Game Boy|Game Boy Color|Game Boy Advance" }, { "sameboy_model_1", "Emulated model for Game Boy #1; Auto|Game Boy|Game Boy Color|Game Boy Advance" },
{ "sameboy_model_2", "Emulated model for Game Boy #2; Auto|Game Boy|Game Boy Color|Game Boy Advance" }, { "sameboy_model_2", "Emulated model for Game Boy #2; Auto|Game Boy|Game Boy Color|Game Boy Advance" },
{ "sameboy_color_correction_mode_1", "Color correction for Game Boy #1; off|correct curves|emulate hardware|preserve brightness" }, { "sameboy_color_correction_mode_1", "Color correction for Game Boy #1; emulate hardware|preserve brightness|reduce contrast|off|correct curves" },
{ "sameboy_color_correction_mode_2", "Color correction for Game Boy #2; off|correct curves|emulate hardware|preserve brightness" }, { "sameboy_color_correction_mode_2", "Color correction for Game Boy #2; emulate hardware|preserve brightness|reduce contrast|off|correct curves" },
{ "sameboy_high_pass_filter_mode_1", "High-pass filter for Game Boy #1; off|accurate|remove dc offset" }, { "sameboy_high_pass_filter_mode_1", "High-pass filter for Game Boy #1; accurate|remove dc offset|off" },
{ "sameboy_high_pass_filter_mode_2", "High-pass filter for Game Boy #2; off|accurate|remove dc offset" }, { "sameboy_high_pass_filter_mode_2", "High-pass filter for Game Boy #2; accurate|remove dc offset|off" },
{ "sameboy_rumble_1", "Enable rumble for Game Boy #1; never|rumble-enabled games|all games" }, { "sameboy_rumble_1", "Enable rumble for Game Boy #1; rumble-enabled games|all games|never" },
{ "sameboy_rumble_2", "Enable rumble for Game Boy #2; never|rumble-enabled games|all games" }, { "sameboy_rumble_2", "Enable rumble for Game Boy #2; rumble-enabled games|all games|never" },
{ NULL } { NULL }
}; };
@ -345,6 +341,52 @@ static void set_link_cable_state(bool state)
} }
} }
static void boot_rom_load(GB_gameboy_t *gb, GB_boot_rom_t type)
{
const char *model_name = (char *[]){
[GB_BOOT_ROM_DMG0] = "dmg0_boot",
[GB_BOOT_ROM_DMG] = "dmg_boot",
[GB_BOOT_ROM_MGB] = "mgb_boot",
[GB_BOOT_ROM_SGB] = "sgb_boot",
[GB_BOOT_ROM_SGB2] = "sgb2_boot",
[GB_BOOT_ROM_CGB0] = "cgb0_boot",
[GB_BOOT_ROM_CGB] = "cgb_boot",
[GB_BOOT_ROM_AGB] = "agb_boot",
}[type];
const uint8_t *boot_code = (const unsigned char *[])
{
[GB_BOOT_ROM_DMG0] = dmg_boot, // dmg0 not implemented yet
[GB_BOOT_ROM_DMG] = dmg_boot,
[GB_BOOT_ROM_MGB] = dmg_boot, // mgb not implemented yet
[GB_BOOT_ROM_SGB] = sgb_boot,
[GB_BOOT_ROM_SGB2] = sgb2_boot,
[GB_BOOT_ROM_CGB0] = cgb_boot, // cgb0 not implemented yet
[GB_BOOT_ROM_CGB] = cgb_boot,
[GB_BOOT_ROM_AGB] = agb_boot,
}[type];
unsigned boot_length = (unsigned []){
[GB_BOOT_ROM_DMG0] = dmg_boot_length, // dmg0 not implemented yet
[GB_BOOT_ROM_DMG] = dmg_boot_length,
[GB_BOOT_ROM_MGB] = dmg_boot_length, // mgb not implemented yet
[GB_BOOT_ROM_SGB] = sgb_boot_length,
[GB_BOOT_ROM_SGB2] = sgb2_boot_length,
[GB_BOOT_ROM_CGB0] = cgb_boot_length, // cgb0 not implemented yet
[GB_BOOT_ROM_CGB] = cgb_boot_length,
[GB_BOOT_ROM_AGB] = agb_boot_length,
}[type];
char buf[256];
snprintf(buf, sizeof(buf), "%s%c%s_boot.bin", retro_system_directory, slash, model_name);
log_cb(RETRO_LOG_INFO, "Initializing as model: %s\n", model_name);
log_cb(RETRO_LOG_INFO, "Loading boot image: %s\n", buf);
if (GB_load_boot_rom(gb, buf)) {
GB_load_boot_rom_from_buffer(gb, boot_code, boot_length);
}
}
static void init_for_current_model(unsigned id) static void init_for_current_model(unsigned id)
{ {
unsigned i = id; unsigned i = id;
@ -362,26 +404,17 @@ static void init_for_current_model(unsigned id)
else { else {
GB_init(&gameboy[i], libretro_to_internal_model[effective_model]); GB_init(&gameboy[i], libretro_to_internal_model[effective_model]);
} }
const char *model_name = (const char *[]){"dmg", "cgb", "agb", "sgb", "sgb2"}[effective_model];
const unsigned char *boot_code = (const unsigned char *[]){dmg_boot, cgb_boot, agb_boot, sgb_boot, sgb2_boot}[effective_model];
unsigned boot_length = (unsigned []){dmg_boot_length, cgb_boot_length, agb_boot_length, sgb_boot_length, sgb2_boot_length}[effective_model];
char buf[256]; GB_set_boot_rom_load_callback(&gameboy[i], boot_rom_load);
snprintf(buf, sizeof(buf), "%s%c%s_boot.bin", retro_system_directory, slash, model_name);
log_cb(RETRO_LOG_INFO, "Initializing as model: %s\n", model_name);
log_cb(RETRO_LOG_INFO, "Loading boot image: %s\n", buf);
if (GB_load_boot_rom(&gameboy[i], buf)) {
GB_load_boot_rom_from_buffer(&gameboy[i], boot_code, boot_length);
}
GB_set_user_data(&gameboy[i], (void*)NULL);
GB_set_pixels_output(&gameboy[i],(unsigned int*)(frame_buf + i * ((model[i] == MODEL_SGB || model[i] == MODEL_SGB2) ? SGB_VIDEO_PIXELS : VIDEO_PIXELS))); /* When running multiple devices they are assumed to use the same resolution */
GB_set_pixels_output(&gameboy[i],
(uint32_t *)(frame_buf + GB_get_screen_width(&gameboy[0]) * GB_get_screen_height(&gameboy[0]) * i));
GB_set_rgb_encode_callback(&gameboy[i], rgb_encode); GB_set_rgb_encode_callback(&gameboy[i], rgb_encode);
GB_set_sample_rate(&gameboy[i], AUDIO_FREQUENCY); GB_set_sample_rate(&gameboy[i], AUDIO_FREQUENCY);
GB_apu_set_sample_callback(&gameboy[i], audio_callback); GB_apu_set_sample_callback(&gameboy[i], audio_callback);
GB_set_rumble_callback(&gameboy[i], rumble_callback); GB_set_rumble_callback(&gameboy[i], rumble_callback);
GB_set_rumble_mode(&gameboy[i], GB_RUMBLE_CARTRIDGE_ONLY);
/* todo: attempt to make these more generic */ /* todo: attempt to make these more generic */
GB_set_vblank_callback(&gameboy[0], (GB_vblank_callback_t) vblank1); GB_set_vblank_callback(&gameboy[0], (GB_vblank_callback_t) vblank1);
@ -572,15 +605,22 @@ static void check_variables()
var.key = "sameboy_border"; var.key = "sameboy_border";
var.value = NULL; var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
if (strcmp(var.value, "enabled") == 0) { if (strcmp(var.value, "never") == 0) {
sgb_border = 1; GB_set_border_mode(&gameboy[0], GB_BORDER_NEVER);
} }
else if (strcmp(var.value, "disabled") == 0) { else if (strcmp(var.value, "Super Game Boy only") == 0) {
sgb_border = 0; GB_set_border_mode(&gameboy[0], GB_BORDER_SGB);
} }
else if (strcmp(var.value, "always") == 0) {
GB_set_border_mode(&gameboy[0], GB_BORDER_ALWAYS);
}
geometry_updated = true;
} }
} }
else { else {
GB_set_border_mode(&gameboy[0], GB_BORDER_NEVER);
GB_set_border_mode(&gameboy[1], GB_BORDER_NEVER);
var.key = "sameboy_color_correction_mode_1"; var.key = "sameboy_color_correction_mode_1";
var.value = NULL; var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
@ -844,31 +884,24 @@ void retro_get_system_av_info(struct retro_system_av_info *info)
if (emulated_devices == 2) { if (emulated_devices == 2) {
if (screen_layout == LAYOUT_TOP_DOWN) { if (screen_layout == LAYOUT_TOP_DOWN) {
geom.base_width = VIDEO_WIDTH; geom.base_width = GB_get_screen_width(&gameboy[0]);
geom.base_height = VIDEO_HEIGHT * emulated_devices; geom.base_height = GB_get_screen_height(&gameboy[0]) * emulated_devices;
geom.aspect_ratio = (double)VIDEO_WIDTH / (emulated_devices * VIDEO_HEIGHT); geom.aspect_ratio = (double)GB_get_screen_width(&gameboy[0]) / (emulated_devices * GB_get_screen_height(&gameboy[0]));
} }
else if (screen_layout == LAYOUT_LEFT_RIGHT) { else if (screen_layout == LAYOUT_LEFT_RIGHT) {
geom.base_width = VIDEO_WIDTH * emulated_devices; geom.base_width = GB_get_screen_width(&gameboy[0]) * emulated_devices;
geom.base_height = VIDEO_HEIGHT; geom.base_height = GB_get_screen_height(&gameboy[0]);
geom.aspect_ratio = ((double)VIDEO_WIDTH * emulated_devices) / VIDEO_HEIGHT; geom.aspect_ratio = ((double)GB_get_screen_width(&gameboy[0]) * emulated_devices) / GB_get_screen_height(&gameboy[0]);
} }
} }
else { else {
if (model[0] == MODEL_SGB || model[0] == MODEL_SGB2) { geom.base_width = GB_get_screen_width(&gameboy[0]);
geom.base_width = SGB_VIDEO_WIDTH; geom.base_height = GB_get_screen_height(&gameboy[0]);
geom.base_height = SGB_VIDEO_HEIGHT; geom.aspect_ratio = (double)GB_get_screen_width(&gameboy[0]) / GB_get_screen_height(&gameboy[0]);
geom.aspect_ratio = (double)SGB_VIDEO_WIDTH / SGB_VIDEO_HEIGHT;
}
else {
geom.base_width = VIDEO_WIDTH;
geom.base_height = VIDEO_HEIGHT;
geom.aspect_ratio = (double)VIDEO_WIDTH / VIDEO_HEIGHT;
}
} }
geom.max_width = SGB_VIDEO_WIDTH * emulated_devices; geom.max_width = MAX_VIDEO_WIDTH * emulated_devices;
geom.max_height = SGB_VIDEO_HEIGHT * emulated_devices; geom.max_height = MAX_VIDEO_HEIGHT * emulated_devices;
info->geometry = geom; info->geometry = geom;
info->timing = timing; info->timing = timing;
@ -969,35 +1002,30 @@ void retro_run(void)
if (emulated_devices == 2) { if (emulated_devices == 2) {
if (screen_layout == LAYOUT_TOP_DOWN) { if (screen_layout == LAYOUT_TOP_DOWN) {
video_cb(frame_buf, VIDEO_WIDTH, VIDEO_HEIGHT * emulated_devices, VIDEO_WIDTH * sizeof(uint32_t)); video_cb(frame_buf,
GB_get_screen_width(&gameboy[0]),
GB_get_screen_height(&gameboy[0]) * emulated_devices,
GB_get_screen_width(&gameboy[0]) * sizeof(uint32_t));
} }
else if (screen_layout == LAYOUT_LEFT_RIGHT) { else if (screen_layout == LAYOUT_LEFT_RIGHT) {
/* use slow memcpy method for now */ unsigned pitch = GB_get_screen_width(&gameboy[0]) * emulated_devices;
for (int index = 0; index < emulated_devices; index++) { unsigned pixels_per_device = GB_get_screen_width(&gameboy[0]) * GB_get_screen_height(&gameboy[0]);
for (int y = 0; y < VIDEO_HEIGHT; y++) { for (int y = 0; y < GB_get_screen_height(&gameboy[0]); y++) {
for (int x = 0; x < VIDEO_WIDTH; x++) { for (unsigned i = 0; i < emulated_devices; i++) {
frame_buf_copy[VIDEO_WIDTH * emulated_devices * y + (x + VIDEO_WIDTH * index)] = frame_buf[VIDEO_WIDTH * (y + VIDEO_HEIGHT * index) + x]; memcpy(frame_buf_copy + y * pitch + GB_get_screen_width(&gameboy[0]) * i,
} frame_buf + pixels_per_device * i + y * GB_get_screen_width(&gameboy[0]),
GB_get_screen_width(&gameboy[0]) * sizeof(uint32_t));
} }
} }
video_cb(frame_buf_copy, VIDEO_WIDTH * emulated_devices, VIDEO_HEIGHT, VIDEO_WIDTH * emulated_devices * sizeof(uint32_t)); video_cb(frame_buf_copy, GB_get_screen_width(&gameboy[0]) * emulated_devices, GB_get_screen_height(&gameboy[0]), GB_get_screen_width(&gameboy[0]) * emulated_devices * sizeof(uint32_t));
} }
} }
else { else {
if (model[0] == MODEL_SGB || model[0] == MODEL_SGB2) { video_cb(frame_buf,
if (sgb_border == 1) { GB_get_screen_width(&gameboy[0]),
video_cb(frame_buf, SGB_VIDEO_WIDTH, SGB_VIDEO_HEIGHT, SGB_VIDEO_WIDTH * sizeof(uint32_t)); GB_get_screen_height(&gameboy[0]),
} GB_get_screen_width(&gameboy[0]) * sizeof(uint32_t));
else {
int crop = SGB_VIDEO_WIDTH * ((SGB_VIDEO_HEIGHT - VIDEO_HEIGHT) / 2) + ((SGB_VIDEO_WIDTH - VIDEO_WIDTH) / 2);
video_cb(frame_buf + crop, VIDEO_WIDTH, VIDEO_HEIGHT, SGB_VIDEO_WIDTH * sizeof(uint32_t));
}
}
else {
video_cb(frame_buf, VIDEO_WIDTH, VIDEO_HEIGHT, VIDEO_WIDTH * sizeof(uint32_t));
}
} }
@ -1009,8 +1037,8 @@ bool retro_load_game(const struct retro_game_info *info)
environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_single); environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_single);
check_variables(); check_variables();
frame_buf = (uint32_t*)malloc(SGB_VIDEO_PIXELS *emulated_devices * sizeof(uint32_t)); frame_buf = (uint32_t *)malloc(MAX_VIDEO_PIXELS * emulated_devices * sizeof(uint32_t));
memset(frame_buf, 0, SGB_VIDEO_PIXELS * emulated_devices * sizeof(uint32_t)); memset(frame_buf, 0, MAX_VIDEO_PIXELS * emulated_devices * sizeof(uint32_t));
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888; enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
@ -1068,11 +1096,11 @@ bool retro_load_game_special(unsigned type, const struct retro_game_info *info,
environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_dual); environ_cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void *)vars_dual);
check_variables(); check_variables();
frame_buf = (uint32_t*)malloc(emulated_devices * SGB_VIDEO_PIXELS * sizeof(uint32_t)); frame_buf = (uint32_t*)malloc(emulated_devices * MAX_VIDEO_PIXELS * sizeof(uint32_t));
frame_buf_copy = (uint32_t*)malloc(emulated_devices * SGB_VIDEO_PIXELS * sizeof(uint32_t)); frame_buf_copy = (uint32_t*)malloc(emulated_devices * MAX_VIDEO_PIXELS * sizeof(uint32_t));
memset(frame_buf, 0, emulated_devices * SGB_VIDEO_PIXELS * sizeof(uint32_t)); memset(frame_buf, 0, emulated_devices * MAX_VIDEO_PIXELS * sizeof(uint32_t));
memset(frame_buf_copy, 0, emulated_devices * SGB_VIDEO_PIXELS * sizeof(uint32_t)); memset(frame_buf_copy, 0, emulated_devices * MAX_VIDEO_PIXELS * sizeof(uint32_t));
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888; enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {