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Check file size for GBA ROM and reduce memory footprint

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This commit is contained in:
Andy Vandijck
2025-08-17 16:01:20 +02:00
parent 0510656ca3
commit 56ea6456f5
3 changed files with 22 additions and 30 deletions
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25
src/core/gba/gba.cpp
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@@ -1675,16 +1675,31 @@ void GBAMatrixWrite16(GBAMatrix_t *matrix, uint32_t address, uint16_t value)
}
}
static size_t get_gba_rom_size(const char* szFile)
{
size_t size = 0;
FILE *f = fopen(szFile, "rb");
if (f == NULL)
return 0;
fseek(f, 0, SEEK_END);
size = ftell(f);
fclose(f);
return size;
}
int CPULoadRom(const char* szFile)
{
romSize = SIZE_ROM * 4;
romSize = get_gba_rom_size(szFile);
if (g_rom != NULL) {
CPUCleanUp();
}
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
g_rom = (uint8_t*)malloc(SIZE_ROM * 4);
g_rom = (uint8_t*)malloc(romSize);
if (g_rom == NULL) {
systemMessage(MSG_OUT_OF_MEMORY, N_("Failed to allocate memory for %s"),
"ROM");
@@ -1829,14 +1844,14 @@ int CPULoadRom(const char* szFile)
int CPULoadRomData(const char* data, int size)
{
romSize = SIZE_ROM * 4;
romSize = size % 2 == 0 ? size : size + 1;
if (g_rom != NULL) {
CPUCleanUp();
}
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
g_rom = (uint8_t*)malloc(SIZE_ROM * 4);
g_rom = (uint8_t*)malloc(romSize);
if (g_rom == NULL) {
systemMessage(MSG_OUT_OF_MEMORY, N_("Failed to allocate memory for %s"),
"ROM");
@@ -1869,7 +1884,7 @@ int CPULoadRomData(const char* data, int size)
memcpy(&ident, &g_rom[0xAC], 1);
if (ident == 'M') {
g_rom2 = (uint8_t *)malloc(SIZE_ROM * 4);
g_rom2 = (uint8_t *)malloc(romSize);
memcpy(g_rom2, data, size);
romSize = 0x01000000;

4
src/libretro/libretro.cpp
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@@ -1756,9 +1756,9 @@ bool retro_load_game(const struct retro_game_info *game)
return emulating;
}
bool retro_load_game_special(unsigned, const struct retro_game_info *, size_t)
bool retro_load_game_special(unsigned, const struct retro_game_info *game, size_t)
{
return false;
return retro_load_game(game);
}
void retro_unload_game(void)

23
src/libretro/vbam_libretro.info
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@@ -1,23 +0,0 @@
display_name = "Nintendo - Game Boy Advance (VBA-M)"
authors = "Forgotten|VBA-M Team"
supported_extensions = "gb|gbc|gba"
corename = "VBA-M"
manufacturer = "Nintendo"
categories = "Emulator"
systemname = "Game Boy/Game Boy Color/Game Boy Advance"
database = "Nintendo - Game Boy|Nintendo - Game Boy Color|Nintendo - Game Boy Advance|Nintendo - Game Boy Advance (e-Cards)"
license = "GPLv2"
permissions = ""
display_version = "2.1.0"
supports_no_game = "false"
firmware_count = 3
firmware0_desc = "gba_bios.bin (Game Boy Advance BIOS)"
firmware0_path = "gba_bios.bin"
firmware0_opt = "true"
firmware1_desc = "gb_bios.bin (Game Boy BIOS)"
firmware1_path = "gb_bios.bin"
firmware1_opt = "true"
firmware2_desc = "gbc_bios.bin (Game Boy Color BIOS)"
firmware2_path = "gbc_bios.bin"
firmware2_opt = "true"
notes = "(!) gba_bios.bin (md5): a860e8c0b6d573d191e4ec7db1b1e4f6|(!) gb_bios.bin (md5): 32fbbd84168d3482956eb3c5051637f5|(!) gbc_bios.bin (md5): dbfce9db9deaa2567f6a84fde55f9680"