From ae87bffa0696eeb18ffb8d283992bc3881e8f241 Mon Sep 17 00:00:00 2001 From: notaz Date: Mon, 5 Oct 2009 15:59:08 +0000 Subject: [PATCH] improved game vidmode change detection; some iface changes git-svn-id: file:///home/notaz/opt/svn/PicoDrive@803 be3aeb3a-fb24-0410-a615-afba39da0efa --- pico/cart.c | 17 +++++++++-------- pico/draw.c | 28 ++++++++++++++++++++-------- pico/mode4.c | 6 +++--- pico/pico.h | 7 ++++--- platform/common/emu.c | 39 ++++++++++++++++++++++----------------- platform/common/emu.h | 1 + 6 files changed, 59 insertions(+), 39 deletions(-) diff --git a/pico/cart.c b/pico/cart.c index 26fb59bb..45f3866f 100644 --- a/pico/cart.c +++ b/pico/cart.c @@ -21,7 +21,7 @@ void (*PicoCartMemSetup)(void); void (*PicoCartLoadProgressCB)(int percent) = NULL; void (*PicoCDLoadProgressCB)(const char *fname, int percent) = NULL; // handled in Pico/cd/cd_file.c -static void PicoCartDetect(void); +static void PicoCartDetect(const char *carthw_cfg); /* cso struct */ typedef struct _cso_struct @@ -541,7 +541,7 @@ int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize,int is_sms) } // Insert a cartridge: -int PicoCartInsert(unsigned char *rom,unsigned int romsize) +int PicoCartInsert(unsigned char *rom, unsigned int romsize, const char *carthw_cfg) { // notaz: add a 68k "jump one op back" opcode to the end of ROM. // This will hang the emu, but will prevent nasty crashes. @@ -572,7 +572,7 @@ int PicoCartInsert(unsigned char *rom,unsigned int romsize) carthw_chunks = NULL; if (!(PicoAHW & (PAHW_MCD|PAHW_SMS))) - PicoCartDetect(); + PicoCartDetect(carthw_cfg); // setup correct memory map for loaded ROM switch (PicoAHW) { @@ -695,16 +695,16 @@ static int is_expr(const char *expr, char **pr) return 1; } -static void parse_carthw(int *fill_sram) +static void parse_carthw(const char *carthw_cfg, int *fill_sram) { int line = 0, any_checks_passed = 0, skip_sect = 0; int tmp, rom_crc = 0; char buff[256], *p, *r; FILE *f; - f = fopen("carthw.cfg", "r"); + f = fopen(carthw_cfg, "r"); if (f == NULL) { - elprintf(EL_STATUS, "couldn't open carthw.txt!"); + elprintf(EL_STATUS, "couldn't open carthw.cfg!"); return; } @@ -924,7 +924,7 @@ no_checks: /* * various cart-specific things, which can't be handled by generic code */ -static void PicoCartDetect(void) +static void PicoCartDetect(const char *carthw_cfg) { int fill_sram = 0; @@ -954,7 +954,8 @@ static void PicoCartDetect(void) SRam.eeprom_bit_in = 0; SRam.eeprom_bit_out= 0; - parse_carthw(&fill_sram); + if (carthw_cfg != NULL) + parse_carthw(carthw_cfg, &fill_sram); if (SRam.flags & SRF_ENABLED) { diff --git a/pico/draw.c b/pico/draw.c index 180045d2..c432bd57 100644 --- a/pico/draw.c +++ b/pico/draw.c @@ -54,6 +54,7 @@ int HighPreSpr[80*2+1]; // slightly preprocessed sprites unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]... int rendstatus, rendstatus_old; +int rendlines; int DrawScanline; int PicoDrawMask = -1; @@ -1404,21 +1405,25 @@ static int DrawDisplay(int sh) // MUST be called every frame PICO_INTERNAL void PicoFrameStart(void) { + int lines = 224; + // prepare to do this frame rendstatus = 0; - if ((Pico.video.reg[12]&6) == 6) + if ((Pico.video.reg[12] & 6) == 6) rendstatus |= PDRAW_INTERLACE; // interlace mode + if (!(Pico.video.reg[12] & 1)) + rendstatus |= PDRAW_32_COLS; if (Pico.video.reg[1] & 8) - rendstatus |= PDRAW_240LINES; + lines = 240; DrawScanline = 0; skip_next_line = 0; - if (rendstatus != rendstatus_old) { + if (rendstatus != rendstatus_old || lines != rendlines) { + rendlines = lines; rendstatus_old = rendstatus; - emu_video_mode_change((rendstatus & PDRAW_240LINES) ? 0 : 8, - (rendstatus & PDRAW_240LINES) ? 240 : 224, - (Pico.video.reg[12] & 1) ? 0 : 1); + emu_video_mode_change((lines == 240) ? 0 : 8, + lines, (Pico.video.reg[12] & 1) ? 0 : 1); } if (PicoOpt & POPT_ALT_RENDERER) @@ -1445,6 +1450,8 @@ static void DrawBlankedLine(int line, int offs, int sh, int bgc) static void PicoLine(int line, int offs, int sh, int bgc) { + int skip = 0; + if (skip_next_line > 0) { skip_next_line--; return; @@ -1452,7 +1459,12 @@ static void PicoLine(int line, int offs, int sh, int bgc) DrawScanline = line; if (PicoScanBegin != NULL) - skip_next_line = PicoScanBegin(line + offs); + skip = PicoScanBegin(line + offs); + + if (skip) { + skip_next_line = skip - 1; + return; + } // Draw screen: BackFill(bgc, sh); @@ -1472,7 +1484,7 @@ void PicoDrawSync(int to, int blank_last_line) int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight? int bgc = Pico.video.reg[7]; - if (!(rendstatus & PDRAW_240LINES)) + if (rendlines != 240) offs = 8; // need to know which pixels are bg for 32x diff --git a/pico/mode4.c b/pico/mode4.c index 104cf498..1462dde5 100644 --- a/pico/mode4.c +++ b/pico/mode4.c @@ -193,11 +193,10 @@ void PicoFrameStartMode4(void) int lines = 192; skip_next_line = 0; screen_offset = 24; - rendstatus = 0; + rendstatus = PDRAW_32_COLS; if ((Pico.video.reg[0] & 6) == 6 && (Pico.video.reg[1] & 0x18)) { if (Pico.video.reg[1] & 0x08) { - rendstatus |= PDRAW_240LINES; screen_offset = 0; lines = 240; } @@ -207,8 +206,9 @@ void PicoFrameStartMode4(void) } } - if (rendstatus != rendstatus_old) { + if (rendstatus != rendstatus_old || lines != rendlines) { rendstatus_old = rendstatus; + rendlines = lines; emu_video_mode_change(screen_offset, lines, 1); } } diff --git a/pico/pico.h b/pico/pico.h index 05f9fab6..c274b806 100644 --- a/pico/pico.h +++ b/pico/pico.h @@ -34,7 +34,7 @@ extern void cache_flush_d_inval_i(const void *start_addr, const void *end_addr); // this one should handle display mode changes extern void emu_video_mode_change(int start_line, int line_count, int is_32cols); -// this must switch to 32bpp mode +// this must switch to 16bpp mode extern void emu_32x_startup(void); // optional 32X BIOS, should be left NULL if not used @@ -149,7 +149,7 @@ size_t pm_read(void *ptr, size_t bytes, pm_file *stream); int pm_seek(pm_file *stream, long offset, int whence); int pm_close(pm_file *fp); int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize,int is_sms); -int PicoCartInsert(unsigned char *rom,unsigned int romsize); +int PicoCartInsert(unsigned char *rom, unsigned int romsize, const char *carthw_cfg); void PicoCartUnload(void); extern void (*PicoCartLoadProgressCB)(int percent); extern void (*PicoCDLoadProgressCB)(const char *fname, int percent); @@ -184,8 +184,9 @@ extern int PicoDrawMask; #define PDRAW_SONIC_MODE (1<<5) // mid-frame palette changes for 8bit renderer #define PDRAW_PLANE_HI_PRIO (1<<6) // have layer with all hi prio tiles (mk3) #define PDRAW_SHHI_DONE (1<<7) // layer sh/hi already processed -#define PDRAW_240LINES (1<<8) // 240 line display (224 if not set) +#define PDRAW_32_COLS (1<<8) // 32 column mode extern int rendstatus, rendstatus_old; +extern int rendlines; extern unsigned short HighPal[0x100]; // Draw2.c diff --git a/platform/common/emu.c b/platform/common/emu.c index a8de9023..370242dc 100644 --- a/platform/common/emu.c +++ b/platform/common/emu.c @@ -41,9 +41,11 @@ int pico_pen_x = 320/2, pico_pen_y = 240/2; int pico_inp_mode = 0; int engineState = PGS_Menu; +/* tmp buff to reduce stack usage for plats with small stack */ +static char static_buff[512]; /* TODO: len checking */ -char rom_fname_reload[512] = { 0, }; -char rom_fname_loaded[512] = { 0, }; +char rom_fname_reload[512]; +char rom_fname_loaded[512]; int rom_loaded = 0; int reset_timing = 0; static unsigned int notice_msg_time; /* when started showing */ @@ -113,7 +115,6 @@ static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" }; static int find_bios(int region, char **bios_file) { - static char bios_path[1024]; int i, count; const char * const *files; FILE *f = NULL; @@ -133,26 +134,27 @@ static int find_bios(int region, char **bios_file) for (i = 0; i < count; i++) { - emu_make_path(bios_path, files[i], sizeof(bios_path) - 4); - strcat(bios_path, ".bin"); - f = fopen(bios_path, "rb"); + emu_make_path(static_buff, files[i], sizeof(static_buff) - 4); + strcat(static_buff, ".bin"); + f = fopen(static_buff, "rb"); if (f) break; - bios_path[strlen(bios_path) - 4] = 0; - strcat(bios_path, ".zip"); - f = fopen(bios_path, "rb"); + static_buff[strlen(static_buff) - 4] = 0; + strcat(static_buff, ".zip"); + f = fopen(static_buff, "rb"); if (f) break; } if (f) { - lprintf("using bios: %s\n", bios_path); + lprintf("using bios: %s\n", static_buff); fclose(f); - if (bios_file) *bios_file = bios_path; + if (bios_file) + *bios_file = static_buff; return 1; } else { - sprintf(bios_path, "no %s BIOS files found, read docs", + sprintf(static_buff, "no %s BIOS files found, read docs", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA"); - me_update_msg(bios_path); + me_update_msg(static_buff); return 0; } } @@ -560,6 +562,7 @@ int emu_reload_rom(char *rom_fname) } menu_romload_prepare(used_rom_name); // also CD load + used_rom_name = NULL; // uses static_buff ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0); pm_close(rom); @@ -594,7 +597,8 @@ int emu_reload_rom(char *rom_fname) if (!ret) emu_read_config(0, 0); } - if (PicoCartInsert(rom_data, rom_size)) { + emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff)); + if (PicoCartInsert(rom_data, rom_size, static_buff)) { me_update_msg("Failed to load ROM."); goto fail; } @@ -700,6 +704,7 @@ static void romfname_ext(char *dst, const char *prefix, const char *ext) if (ext) strcat(dst, ext); } +// void emu_make_path(char *buff, const char *end, int size) { int pos, end_len; @@ -907,7 +912,7 @@ static int try_ropen_file(const char *fname) char *emu_get_save_fname(int load, int is_sram, int slot) { - static char saveFname[512]; + char *saveFname = static_buff; char ext[16]; if (is_sram) @@ -1482,7 +1487,7 @@ void emu_loop(void) pframes_done++; frames_done++; diff_lim += target_frametime; - if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) { + if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) { timestamp = get_ticks(); diff = timestamp - timestamp_base; if (!reset_timing && diff < diff_lim) // we are too fast @@ -1508,7 +1513,7 @@ void emu_loop(void) PicoFrame(); /* frame limiter */ - if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) + if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) { timestamp = get_ticks(); diff = timestamp - timestamp_base; diff --git a/platform/common/emu.h b/platform/common/emu.h index 5b695ef9..b4984889 100644 --- a/platform/common/emu.h +++ b/platform/common/emu.h @@ -41,6 +41,7 @@ extern int g_screen_height; #define EOPT_SHOW_RTC (1<<17) #define EOPT_NO_FRMLIMIT (1<<18) #define EOPT_WIZ_TEAR_FIX (1<<19) +#define EOPT_EXT_FRMLIMIT (1<<20) // no internal frame limiter (limited by snd, etc) enum { EOPT_SCALE_NONE = 0, -- 2.39.5