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game: support splash screens (#4236)

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Closes #1496 

This brings back the SCE splash screens. Also adds a runtime flag
`-nosplash` to skip it. Right now, it's on by default, but open to
changes on that (maybe always disable in debug to speed up start times,
etc.).
This commit is contained in:
Hat Kid
2026-04-20 03:19:08 +02:00
committed by GitHub
parent a63cb1d212
commit 1dff571820
20 changed files with 304 additions and 7 deletions
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game/kernel/common/kmachine.cpp
+48 -2
View File
@@ -19,6 +19,7 @@
#include "game/kernel/common/kprint.h"
#include "game/kernel/common/kscheme.h"
#include "game/mips2c/mips2c_table.h"
#include "game/runtime.h"
#include "game/sce/libcdvd_ee.h"
#include "game/sce/libpad.h"
#include "game/sce/libscf.h"
@@ -70,9 +71,54 @@ void InitCD() {
/*!
* Initialize the GS and display the splash screen.
* Not yet implemented. TODO
*/
void InitVideo() {}
void InitVideo() {
if (!SplashScreen) {
lg::info("InitVideo: skipping splash!\n");
return;
}
std::map<int, std::string> lang_to_splash_map{
{SCE_JAPANESE_LANGUAGE, "JAP"}, {SCE_ENGLISH_LANGUAGE, "USA"},
{SCE_FRENCH_LANGUAGE, "FRE"}, {SCE_SPANISH_LANGUAGE, "SPA"},
{SCE_GERMAN_LANGUAGE, "GER"}, {SCE_ITALIAN_LANGUAGE, "ITA"},
{SCE_PORTUGUESE_LANGUAGE, "POR"}, {SCE_KOREAN_LANGUAGE, "KOR"},
};
auto lang = ee::sceScfGetLanguage();
auto filename = "SCREEN1." + lang_to_splash_map.at(lang);
auto path = file_util::get_jak_project_dir() / "out" / game_version_names[g_game_version] /
"iso" / filename;
if (lang != SCE_ENGLISH_LANGUAGE && !fs::exists(path)) {
lg::warn("InitVideo: file {} not found, falling back to english...\n", filename);
path = file_util::get_jak_project_dir() / "out" / game_version_names[g_game_version] / "iso" /
"SCREEN1.USA";
}
if (!fs::exists(path)) {
lg::warn("InitVideo: splash screen not found!\n");
return;
}
auto data = file_util::read_binary_file(path);
// width is always 512, height is sometimes different (e.g. demo screens), so we infer from file
// size
constexpr int kWidth = 512;
if (data.size() % (kWidth * 4) != 0) {
lg::error("InitVideo: splash size {} not divisible by stride {}", data.size(), kWidth * 4);
return;
}
int kHeight = data.size() / (kWidth * 4);
if ((int)data.size() != kWidth * kHeight * 4) {
lg::error("InitVideo: unexpected size {}, expected {} for splash screen", data.size(),
kWidth * kHeight * 4);
return;
}
Gfx::g_splash.data = std::move(data);
Gfx::g_splash.width = kWidth;
Gfx::g_splash.height = kHeight;
Gfx::g_splash.ready.store(true);
SplashTimer.start();
while (SplashTimer.getSeconds() < SPLASH_SCREEN_TIME) {
std::this_thread::sleep_for(std::chrono::milliseconds(50));
}
}
/*!
* Flush caches. Does all the memory, regardless of what you specify