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keysound offset

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CrazyRedMachine 2023-02-22 23:42:16 +01:00
parent 913fa520d1
commit 9302893549
3 changed files with 166 additions and 7 deletions
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19
dist/popnhax/popnhax.xml vendored
View File

@ -10,7 +10,7 @@
<hd_on_sd __type="u8">0</hd_on_sd>
<!-- Force unlock music, charts, and characters -->
<force_unlocks __type="bool">0</force_unlocks>
<!-- Force unlock deco parts (/!\ DO NOT USE ON LATER GAMES WITHOUT DECO /!\ -->
<!-- Force unlock deco parts (avoid using this on later games without deco) -->
<force_unlock_deco __type="bool">0</force_unlock_deco>
<!-- Prevent Windows volume from being reset on boot -->
<unset_volume __type="bool">0</unset_volume>
@ -22,15 +22,20 @@
<freeze_timer __type="bool">0</freeze_timer>
<!-- Force skip menu and long note tutorials without a card -->
<skip_tutorials __type="bool">0</skip_tutorials>
<!-- Settings for database hooking patches follow: -->
<!-- Enable database modifications -->
<!-- Enable database modifications (omnimix, custom tracks) -->
<patch_db __type="bool">0</patch_db>
<!-- Force the newly created buffers to be the same size as the original buffers -->
<disable_expansions __type="bool">0</disable_expansions>
<!-- Copy the new table information over top the old tables (automatically enables disable_expansions) -->
<disable_redirection __type="bool">0</disable_redirection>
<!-- Autoload latest patch file (highest datecode) from data_mods folder -->
<patch_xml_auto __type="bool">1</patch_xml_auto>
<!-- Manually set XML file containing patches (requires patch_xml_auto to be disabled) -->
<patch_xml_filename __type="str"></patch_xml_filename>
<!-- DEBUG OPTIONS, GENERALLY SHOULD NOT BE CHANGED -->
<!-- Offset the keysounds by x ms (negative is earlier) -->
<keysound_offset __type="s8">0</keysound_offset>
<!-- Force the newly created buffers to be the same size as the original buffers -->
<disable_expansions __type="bool">0</disable_expansions>
<!-- Copy the new table information over top the old tables (automatically enables disable_expansions) -->
<disable_redirection __type="bool">0</disable_redirection>
</popnhax>

1
popnhax/config.h
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@ -21,6 +21,7 @@ struct popnhax_config {
bool disable_redirection;
bool patch_xml_auto;
char patch_xml_filename[MAX_PATH];
int8_t keysound_offset;
};
#endif

153
popnhax/dllmain.cc
View File

@ -107,6 +107,8 @@ PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_BOOL, struct popnhax_config, patch_xml_auto
"/popnhax/patch_xml_auto")
PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_STR, struct popnhax_config, patch_xml_filename,
"/popnhax/patch_xml_filename")
PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_S8, struct popnhax_config, keysound_offset,
"/popnhax/keysound_offset")
PSMAP_END
enum BufferIndexes {
@ -172,6 +174,13 @@ void quickexit_game_loop()
real_game_loop();
}
int16_t g_keysound_offset = 0;
void (*real_eval_timing)();
void patch_eval_timing() {
__asm("mov esi, %0\n": :"b"((int32_t)g_keysound_offset));
real_eval_timing();
}
uint32_t g_transition_addr = 0;
uint32_t g_stage_addr = 0;
void (*real_result_loop)();
@ -1280,6 +1289,68 @@ static bool get_addr_timing_offset(uint32_t *res)
return true;
}
/* helper function to retrieve SD timing address */
static bool get_addr_sd_timing(uint32_t *res)
{
static uint32_t addr = 0;
if (addr != 0)
{
*res = addr;
return true;
}
DWORD dllSize = 0;
char *data = getDllData("popn22.dll", &dllSize);
fuzzy_search_task task;
FUZZY_START(task, 1)
FUZZY_CODE(task, 0, "\xB8\xC4\xFF\xFF\xFF", 5)
int64_t pattern_offset = find_block(data, dllSize, &task, 0);
if (pattern_offset == -1) {
return false;
}
addr = (uint32_t) ((int64_t)data + pattern_offset + 1);
#if DEBUG == 1
printf("SD TIMING MEMORYZONE %x\n", addr);
#endif
*res = addr;
return true;
}
/* helper function to retrieve HD timing address */
static bool get_addr_hd_timing(uint32_t *res)
{
static uint32_t addr = 0;
if (addr != 0)
{
*res = addr;
return true;
}
DWORD dllSize = 0;
char *data = getDllData("popn22.dll", &dllSize);
fuzzy_search_task task;
FUZZY_START(task, 1)
FUZZY_CODE(task, 0, "\xB8\xB4\xFF\xFF\xFF", 5)
int64_t pattern_offset = find_block(data, dllSize, &task, 0);
if (pattern_offset == -1) {
return false;
}
addr = (uint32_t) ((int64_t)data + pattern_offset + 1);
#if DEBUG == 1
printf("HD TIMING MEMORYZONE %x\n", addr);
#endif
*res = addr;
return true;
}
static bool patch_hidden_is_offset()
{
DWORD dllSize = 0;
@ -1604,6 +1675,75 @@ static bool patch_quick_retire(bool pfree)
return true;
}
static bool patch_add_to_base_offset(int8_t delta) {
int32_t new_value = delta;
char *as_hex = (char *) &new_value;
printf("popnhax: base offset: adding %d to base offset.\n",delta);
/* call get_addr_timing_offset() so that it can still work after timing value is overwritten */
uint32_t original_timing;
get_addr_timing_offset(&original_timing);
uint32_t sd_timing_addr;
if (!get_addr_sd_timing(&sd_timing_addr))
{
printf("popnhax: base offset: cannot find base SD timing\n");
return false;
}
int32_t current_value = *(int32_t *) sd_timing_addr;
new_value = current_value+delta;
patch_memory(sd_timing_addr, as_hex, 4);
printf("popnhax: base offset: SD offset is now %d.\n",new_value);
uint32_t hd_timing_addr;
if (!get_addr_hd_timing(&hd_timing_addr))
{
printf("popnhax: base offset: cannot find base HD timing\n");
return false;
}
current_value = *(int32_t *) hd_timing_addr;
new_value = current_value+delta;
patch_memory(hd_timing_addr, as_hex, 4);
printf("popnhax: base offset: HD offset is now %d.\n",new_value);
return true;
}
static bool patch_keysound_offset(int8_t value)
{
DWORD dllSize = 0;
char *data = getDllData("popn22.dll", &dllSize);
g_keysound_offset = -1*value;
patch_add_to_base_offset(value);
{
fuzzy_search_task task;
FUZZY_START(task, 1)
FUZZY_CODE(task, 0, "\x51\x53\x56\x57\x0f\xb7\xf8\x8b\x34\xfd", 10)
int64_t pattern_offset = find_block(data, dllSize, &task, 0);
if (pattern_offset == -1) {
printf("popnhax: keysound offset: cannot prepatch\n");
return false;
}
uint64_t patch_addr = (int64_t)data + pattern_offset + 0x07;
patch_memory(patch_addr, (char *)"\x03", 1);
MH_CreateHook((LPVOID)(patch_addr-0x03), (LPVOID)patch_eval_timing,
(void **)&real_eval_timing);
printf("popnhax: keysound offset: timing offset by %d ms\n", value);
}
return true;
}
static bool patch_base_offset(int32_t value) {
char *as_hex = (char *) &value;
bool res = true;
@ -1612,6 +1752,12 @@ static bool patch_base_offset(int32_t value) {
uint32_t original_timing;
get_addr_timing_offset(&original_timing);
uint32_t sd_timing_addr;
get_addr_sd_timing(&sd_timing_addr);
uint32_t hd_timing_addr;
get_addr_hd_timing(&hd_timing_addr);
if (!patch_hex("\xB8\xC4\xFF\xFF\xFF", 5, 1, as_hex, 4))
{
printf("popnhax: base offset: cannot patch base SD timing\n");
@ -1627,6 +1773,8 @@ static bool patch_base_offset(int32_t value) {
return res;
}
static bool patch_hd_on_sd(uint8_t mode) {
if (mode > 2)
{
@ -1693,6 +1841,11 @@ BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserv
patch_hidden_is_offset();
}
if (config.keysound_offset){
/* must be called after hd_on_sd */
patch_keysound_offset(config.keysound_offset);
}
if (config.event_mode) {
patch_event_mode();
}