[libpicofe.git] / pandora / emu.c

// (c) Copyright 2006-2009 notaz, All rights reserved.\r
// Free for non-commercial use.\r
\r
// For commercial use, separate licencing terms must be obtained.\r
\r
#include <stdio.h>\r
#include <unistd.h>\r
\r
#include "../common/emu.h"\r
#include "../common/menu.h"\r
#include "../common/plat.h"\r
#include "../common/arm_utils.h"\r
#include "../linux/sndout_oss.h"\r
#include "../linux/fbdev.h"\r
#include "asm_utils.h"\r
#include "version.h"\r
\r
#include <pico/pico_int.h>\r
\r
\r
static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
static unsigned char temp_frame[g_screen_width * g_screen_height * 2];\r
unsigned char *PicoDraw2FB = temp_frame;\r
const char *renderer_names[] = { NULL };\r
const char *renderer_names32x[] = { NULL };\r
char cpu_clk_name[] = "Max CPU clock";\r
\r
enum {\r
	SCALE_1x1,\r
	SCALE_2x2_3x2,\r
	SCALE_2x2_2x2,\r
};\r
\r
static int get_cpu_clock(void)\r
{\r
	FILE *f;\r
	int ret = 0;\r
	f = fopen("/proc/pandora/cpu_mhz_max", "r");\r
	if (f) {\r
		fscanf(f, "%d", &ret);\r
		fclose(f);\r
	}\r
	return ret;\r
}\r
\r
void pemu_prep_defconfig(void)\r
{\r
	// XXX: move elsewhere\r
	g_menubg_ptr = temp_frame;\r
\r
	defaultConfig.EmuOpt |= EOPT_VSYNC;\r
	defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;\r
	defaultConfig.scaling = SCALE_2x2_3x2;\r
}\r
\r
void pemu_validate_config(void)\r
{\r
	currentConfig.CPUclock = get_cpu_clock();\r
}\r
\r
// FIXME: cleanup\r
static void osd_text(int x, int y, const char *text)\r
{\r
	int len = strlen(text)*8;\r
\r
	if (0) {\r
		int *p, i, h;\r
		x &= ~3; // align x\r
		len = (len+3) >> 2;\r
		for (h = 0; h < 8; h++) {\r
			p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));\r
			for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
		}\r
		emu_text_out8(x, y, text);\r
	} else {\r
		int *p, i, h;\r
		x &= ~1; // align x\r
		len++;\r
		for (h = 0; h < 16; h++) {\r
			p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));\r
			for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;\r
		}\r
		text_out16(x, y, text);\r
	}\r
}\r
\r
static void draw_cd_leds(void)\r
{\r
//	static\r
	int old_reg;\r
//	if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
	old_reg = Pico_mcd->s68k_regs[0];\r
\r
	if (0) {\r
		// 8-bit modes\r
		unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
		unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
	} else {\r
		// 16-bit modes\r
		unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
		unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
		unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
	}\r
}\r
\r
static int emuscan_1x1(unsigned int num)\r
{\r
	DrawLineDest = (unsigned short *)g_screen_ptr +\r
		g_screen_width * g_screen_height / 2 - g_screen_width * 240 / 2 +\r
		num*g_screen_width + g_screen_width/2 - 320/2;\r
\r
	return 0;\r
}\r
\r
#define MAKE_EMUSCAN(name_, clut_name_, offs_, len_)		\\r
static int name_(unsigned int num)				\\r
{								\\r
	unsigned char  *ps = HighCol+8;				\\r
	unsigned short *pd, *pal = HighPal;			\\r
	int sh = Pico.video.reg[0xC] & 8;			\\r
	int mask = 0xff;					\\r
								\\r
	pd = (unsigned short *)g_screen_ptr + num*800*2 + offs_;\\r
								\\r
	if (Pico.m.dirtyPal)					\\r
		PicoDoHighPal555(sh);				\\r
								\\r
	if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))		\\r
		mask = 0x3f; /* upper bits are priority stuff */\\r
								\\r
	clut_line##clut_name_(pd, ps, pal, (mask<<16) | len_);	\\r
								\\r
	return 0;						\\r
}\r
\r
MAKE_EMUSCAN(emuscan_2x2_40, 2x2, 800/2 - 320*2/2, 320)\r
MAKE_EMUSCAN(emuscan_2x2_32, 2x2, 800/2 - 256*2/2, 256)\r
MAKE_EMUSCAN(emuscan_3x2_32, 3x2, 800/2 - 256*3/2, 256)\r
\r
#if 0 /* FIXME */\r
static int EmuScanEnd16_32x(unsigned int num)\r
{\r
	unsigned int *ps;\r
	unsigned int *pd;\r
	int len;\r
\r
	ps = (unsigned int *)temp_frame;\r
	pd = (unsigned int *)g_screen_ptr + (num*800*2 + 800/2 - 320*2/2) / 2;\r
\r
	for (len = 320/2; len > 0; len--, ps++) {\r
		unsigned int p, p1;\r
		p1 = *ps;\r
		p = p1 << 16;\r
		p |= p >> 16;\r
		*pd = pd[800/2] = p;\r
		pd++;\r
\r
		p = p1 >> 16;\r
		p |= p << 16;\r
		*pd = pd[800/2] = p;\r
		pd++;\r
	}\r
\r
	return 0;\r
}\r
#endif\r
\r
void pemu_finalize_frame(const char *fps, const char *notice)\r
{\r
	if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r
		if (notice)\r
			osd_text(4, 464, notice);\r
		if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
			osd_text(640, 464, fps);\r
	}\r
	if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
		draw_cd_leds();\r
}\r
\r
void plat_video_toggle_renderer(int change, int is_menu)\r
{\r
	// this will auto-select SMS/32X renderers\r
	PicoDrawSetOutFormat(PDF_RGB555, 1);\r
}\r
\r
void plat_video_menu_enter(int is_rom_loaded)\r
{\r
}\r
\r
void plat_video_menu_begin(void)\r
{\r
	memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r
}\r
\r
void plat_video_menu_end(void)\r
{\r
	plat_video_flip();\r
}\r
\r
void plat_status_msg_clear(void)\r
{\r
	int s = g_screen_width * g_screen_height * 2;\r
	int l = g_screen_width * 16 * 2;\r
	int i;\r
\r
	for (i = 0; i < fbdev_buffer_count; i++)\r
		memset32((int *)((char *)fbdev_buffers[i] + s - l), 0, l / 4);\r
}\r
\r
void plat_status_msg_busy_next(const char *msg)\r
{\r
	plat_status_msg_clear();\r
	pemu_finalize_frame("", msg);\r
	plat_video_flip();\r
	emu_status_msg("");\r
	reset_timing = 1;\r
}\r
\r
void plat_status_msg_busy_first(const char *msg)\r
{\r
//	memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
	plat_status_msg_busy_next(msg);\r
}\r
\r
void plat_update_volume(int has_changed, int is_up)\r
{\r
	static int prev_frame = 0, wait_frames = 0;\r
	int vol = currentConfig.volume;\r
\r
	if (has_changed)\r
	{\r
		if (is_up) {\r
			if (vol < 99) vol++;\r
		} else {\r
			if (vol >  0) vol--;\r
		}\r
		wait_frames = 0;\r
		sndout_oss_setvol(vol, vol);\r
		currentConfig.volume = vol;\r
		emu_status_msg("VOL: %02i", vol);\r
		prev_frame = Pico.m.frame_count;\r
	}\r
}\r
\r
void pemu_forced_frame(int opts, int no_scale)\r
{\r
	int oldscale = currentConfig.scaling;\r
	int po_old = PicoOpt;\r
\r
	if (no_scale) {\r
		currentConfig.scaling = SCALE_1x1;\r
		emu_video_mode_change(0, 0, 0);\r
	}\r
\r
	PicoOpt &= ~POPT_ALT_RENDERER;\r
	PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
\r
	Pico.m.dirtyPal = 1;\r
	PicoFrameDrawOnly();\r
\r
	PicoOpt = po_old;\r
	currentConfig.scaling = oldscale;\r
}\r
\r
static void updateSound(int len)\r
{\r
	unsigned int t;\r
\r
	len <<= 1;\r
	if (PicoOpt & POPT_EN_STEREO)\r
		len <<= 1;\r
\r
	// sndout_oss_can_write() not reliable..\r
	if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
		return;\r
\r
	/* avoid writing audio when lagging behind to prevent audio lag */\r
	if (PicoSkipFrame == 2)\r
		return;\r
\r
	t = plat_get_ticks_ms();\r
	sndout_oss_write(PsndOut, len);\r
	t = plat_get_ticks_ms() - t;\r
	if (t > 1)\r
		printf("audio lag %u\n", t);\r
}\r
\r
void pemu_sound_start(void)\r
{\r
	int target_fps = Pico.m.pal ? 50 : 60;\r
\r
	PsndOut = NULL;\r
\r
	if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
	{\r
		int snd_excess_add, frame_samples;\r
		int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
\r
		PsndRerate(Pico.m.frame_count ? 1 : 0);\r
\r
		frame_samples = PsndLen;\r
		snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
		if (snd_excess_add != 0)\r
			frame_samples++;\r
\r
		printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
			PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
		sndout_oss_start(PsndRate, frame_samples * 2, is_stereo);\r
		//sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
		PicoWriteSound = updateSound;\r
		plat_update_volume(0, 0);\r
		memset(sndBuffer, 0, sizeof(sndBuffer));\r
		PsndOut = sndBuffer;\r
	}\r
}\r
\r
void pemu_sound_stop(void)\r
{\r
	sndout_oss_stop();\r
}\r
\r
void pemu_sound_wait(void)\r
{\r
	// don't need to do anything, writes will block by themselves\r
}\r
\r
void plat_debug_cat(char *str)\r
{\r
}\r
\r
void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
{\r
	int i;\r
\r
	// clear whole screen in all buffers\r
	for (i = 0; i < fbdev_buffer_count; i++)\r
		memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4);\r
\r
	PicoScanBegin = NULL;\r
	PicoScanEnd = NULL;\r
\r
#if 0\r
	if (PicoAHW & PAHW_32X) {\r
		/* FIXME */\r
		DrawLineDest = (unsigned short *)temp_frame;\r
		PicoDrawSetOutFormat(PDF_RGB555, 1);\r
		PicoScanEnd = EmuScanEnd16_32x;\r
	} else\r
#endif\r
	{\r
		switch (currentConfig.scaling) {\r
		case SCALE_1x1:\r
			PicoDrawSetOutFormat(PDF_RGB555, 1);\r
			PicoScanBegin = emuscan_1x1;\r
			break;\r
		case SCALE_2x2_3x2:\r
			PicoDrawSetOutFormat(PDF_NONE, 0);\r
			PicoScanEnd = is_32cols ? emuscan_3x2_32 : emuscan_2x2_40;\r
			break;\r
		case SCALE_2x2_2x2:\r
			PicoDrawSetOutFormat(PDF_NONE, 0);\r
			PicoScanEnd = is_32cols ? emuscan_2x2_32 : emuscan_2x2_40;\r
			break;\r
		}\r
	}\r
}\r
\r
void pemu_loop_prep(void)\r
{\r
	if (currentConfig.CPUclock != get_cpu_clock()) {\r
		char buf[64];\r
		snprintf(buf, sizeof(buf), "sudo /usr/pandora/scripts/op_cpuspeed.sh %d",\r
			currentConfig.CPUclock);\r
		system(buf);\r
	}\r
\r
	pemu_sound_start();\r
}\r
\r
void pemu_loop_end(void)\r
{\r
	int po_old = PicoOpt;\r
	int eo_old = currentConfig.EmuOpt;\r
\r
	pemu_sound_stop();\r
	memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
\r
	/* do one more frame for menu bg */\r
	PicoOpt &= ~POPT_ALT_RENDERER;\r
	PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
	currentConfig.EmuOpt |= EOPT_16BPP;\r
\r
	PicoDrawSetOutFormat(PDF_RGB555, 1);\r
	Pico.m.dirtyPal = 1;\r
	PicoFrame();\r
\r
	PicoOpt = po_old;\r
	currentConfig.EmuOpt = eo_old;\r
}\r
\r
void plat_wait_till_us(unsigned int us_to)\r
{\r
	unsigned int now;\r
	signed int diff;\r
\r
	now = plat_get_ticks_us();\r
\r
	// XXX: need to check NOHZ\r
	diff = (signed int)(us_to - now);\r
	if (diff > 10000) {\r
		//printf("sleep %d\n", us_to - now);\r
		usleep(diff * 15 / 16);\r
		now = plat_get_ticks_us();\r
		//printf(" wake %d\n", (signed)(us_to - now));\r
	}\r
/*\r
	while ((signed int)(us_to - now) > 512) {\r
		spend_cycles(1024);\r
		now = plat_get_ticks_us();\r
	}\r
*/\r
}\r
\r
const char *plat_get_credits(void)\r
{\r
	return "PicoDrive v" VERSION " (c) notaz, 2006-2010\n\n\n"\r
		"Credits:\n"\r
		"fDave: Cyclone 68000 core,\n"\r
		"      base code of PicoDrive\n"\r
		"Reesy & FluBBa: DrZ80 core\n"\r
		"MAME devs: YM2612 and SN76496 cores\n"\r
		"Pandora team: Pandora\n"\r
		"Inder, ketchupgun: graphics\n"\r
		"\n"\r
		"special thanks (for docs, ideas):\n"\r
		" Charles MacDonald, Haze,\n"\r
		" Stephane Dallongeville,\n"\r
		" Lordus, Exophase, Rokas,\n"\r
		" Nemesis, Tasco Deluxe";\r
}\r
Commit	Line	Data
93c18cb4	1	// (c) Copyright 2006-2009 notaz, All rights reserved.\r
492d353a	2	// Free for non-commercial use.\r
	3	\r
	4	// For commercial use, separate licencing terms must be obtained.\r
	5	\r
	6	#include <stdio.h>\r
b188c2b6	7	#include <unistd.h>\r
492d353a	8	\r
492d353a	9	#include "../common/emu.h"\r
7fd581f4	10	#include "../common/menu.h"\r
d2f29611	11	#include "../common/plat.h"\r
d2f29611	12	#include "../common/arm_utils.h"\r
b3972d82	13	#include "../linux/sndout_oss.h"\r
b188c2b6	14	#include "../linux/fbdev.h"\r
de9b1274	15	#include "asm_utils.h"\r
d2f29611	16	#include "version.h"\r
492d353a	17	\r
f11bad75	18	#include <pico/pico_int.h>\r
492d353a	19	\r
492d353a	20	\r
492d353a	21	static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
d2f29611	22	static unsigned char temp_frame[g_screen_width * g_screen_height * 2];\r
d2f29611	23	unsigned char *PicoDraw2FB = temp_frame;\r
0c9ae592	24	const char *renderer_names[] = { NULL };\r
0c9ae592	25	const char *renderer_names32x[] = { NULL };\r
f6eaae4f	26	char cpu_clk_name[] = "Max CPU clock";\r
	27	\r
	28	enum {\r
	29	SCALE_1x1,\r
	30	SCALE_2x2_3x2,\r
	31	SCALE_2x2_2x2,\r
	32	};\r
492d353a	33	\r
f6eaae4f	34	static int get_cpu_clock(void)\r
	35	{\r
	36	FILE *f;\r
	37	int ret = 0;\r
	38	f = fopen("/proc/pandora/cpu_mhz_max", "r");\r
	39	if (f) {\r
	40	fscanf(f, "%d", &ret);\r
	41	fclose(f);\r
	42	}\r
	43	return ret;\r
	44	}\r
492d353a	45	\r
93c18cb4	46	void pemu_prep_defconfig(void)\r
492d353a	47	{\r
d2f29611	48	// XXX: move elsewhere\r
d2f29611	49	g_menubg_ptr = temp_frame;\r
b188c2b6	50	\r
b188c2b6	51	defaultConfig.EmuOpt \|= EOPT_VSYNC;\r
209a7eff	52	defaultConfig.s_PicoOpt \|= POPT_EN_MCD_GFX\|POPT_EN_MCD_PSYNC;\r
f6eaae4f	53	defaultConfig.scaling = SCALE_2x2_3x2;\r
492d353a	54	}\r
492d353a	55	\r
d2f29611	56	void pemu_validate_config(void)\r
492d353a	57	{\r
f6eaae4f	58	currentConfig.CPUclock = get_cpu_clock();\r
492d353a	59	}\r
492d353a	60	\r
d2f29611	61	// FIXME: cleanup\r
046c4540	62	static void osd_text(int x, int y, const char *text)\r
492d353a	63	{\r
	64	int len = strlen(text)*8;\r
	65	\r
662e622b	66	if (0) {\r
492d353a	67	int *p, i, h;\r
	68	x &= ~3; // align x\r
	69	len = (len+3) >> 2;\r
	70	for (h = 0; h < 8; h++) {\r
7fd581f4	71	p = (int ) ((unsigned char ) g_screen_ptr+x+g_screen_width*(y+h));\r
492d353a	72	for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
492d353a	73	}\r
b7911801	74	emu_text_out8(x, y, text);\r
492d353a	75	} else {\r
	76	int *p, i, h;\r
	77	x &= ~1; // align x\r
	78	len++;\r
	79	for (h = 0; h < 16; h++) {\r
7fd581f4	80	p = (int ) ((unsigned short ) g_screen_ptr+x+g_screen_width*(y+h));\r
de9b1274	81	for (i = len; i; i--, p++) p = 0;//(p>>2)&0x39e7;\r
492d353a	82	}\r
b7911801	83	text_out16(x, y, text);\r
492d353a	84	}\r
	85	}\r
	86	\r
	87	static void draw_cd_leds(void)\r
	88	{\r
	89	// static\r
	90	int old_reg;\r
	91	// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
	92	old_reg = Pico_mcd->s68k_regs[0];\r
	93	\r
662e622b	94	if (0) {\r
492d353a	95	// 8-bit modes\r
	96	unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
	97	unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
7fd581f4	98	(unsigned int )((char )g_screen_ptr + g_screen_width2+ 4) =\r
	99	(unsigned int )((char )g_screen_ptr + g_screen_width3+ 4) =\r
	100	(unsigned int )((char )g_screen_ptr + g_screen_width4+ 4) = col_g;\r
	101	(unsigned int )((char )g_screen_ptr + g_screen_width2+12) =\r
	102	(unsigned int )((char )g_screen_ptr + g_screen_width3+12) =\r
	103	(unsigned int )((char )g_screen_ptr + g_screen_width4+12) = col_r;\r
492d353a	104	} else {\r
492d353a	105	// 16-bit modes\r
7fd581f4	106	unsigned int p = (unsigned int )((short )g_screen_ptr + g_screen_width2+4);\r
492d353a	107	unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
492d353a	108	unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
e31266dd	109	p++ = col_g; p++ = col_g; p+=2; p++ = col_r; p++ = col_r; p += g_screen_width/2 - 12/2;\r
e31266dd	110	p++ = col_g; p++ = col_g; p+=2; p++ = col_r; p++ = col_r; p += g_screen_width/2 - 12/2;\r
492d353a	111	p++ = col_g; p++ = col_g; p+=2; p++ = col_r; p++ = col_r;\r
	112	}\r
	113	}\r
	114	\r
f6eaae4f	115	static int emuscan_1x1(unsigned int num)\r
de9b1274	116	{\r
209a7eff	117	DrawLineDest = (unsigned short *)g_screen_ptr +\r
	118	g_screen_width * g_screen_height / 2 - g_screen_width * 240 / 2 +\r
	119	num*g_screen_width + g_screen_width/2 - 320/2;\r
de9b1274	120	\r
	121	return 0;\r
	122	}\r
	123	\r
f6eaae4f	124	#define MAKE_EMUSCAN(name_, clut_name_, offs_, len_) \\r
	125	static int name_(unsigned int num) \\r
	126	{ \\r
	127	unsigned char *ps = HighCol+8; \\r
	128	unsigned short pd, pal = HighPal; \\r
	129	int sh = Pico.video.reg[0xC] & 8; \\r
	130	int mask = 0xff; \\r
	131	\\r
	132	pd = (unsigned short )g_screen_ptr + num800*2 + offs_;\\r
	133	\\r
	134	if (Pico.m.dirtyPal) \\r
	135	PicoDoHighPal555(sh); \\r
	136	\\r
	137	if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI)) \\r
	138	mask = 0x3f; /* upper bits are priority stuff */\\r
	139	\\r
	140	clut_line##clut_name_(pd, ps, pal, (mask<<16) \| len_); \\r
	141	\\r
	142	return 0; \\r
492d353a	143	}\r
492d353a	144	\r
f6eaae4f	145	MAKE_EMUSCAN(emuscan_2x2_40, 2x2, 800/2 - 320*2/2, 320)\r
	146	MAKE_EMUSCAN(emuscan_2x2_32, 2x2, 800/2 - 256*2/2, 256)\r
	147	MAKE_EMUSCAN(emuscan_3x2_32, 3x2, 800/2 - 256*3/2, 256)\r
	148	\r
	149	#if 0 /* FIXME */\r
b188c2b6	150	static int EmuScanEnd16_32x(unsigned int num)\r
	151	{\r
	152	unsigned int *ps;\r
	153	unsigned int *pd;\r
	154	int len;\r
	155	\r
	156	ps = (unsigned int *)temp_frame;\r
	157	pd = (unsigned int )g_screen_ptr + (num8002 + 800/2 - 3202/2) / 2;\r
	158	\r
	159	for (len = 320/2; len > 0; len--, ps++) {\r
	160	unsigned int p, p1;\r
	161	p1 = *ps;\r
	162	p = p1 << 16;\r
	163	p \|= p >> 16;\r
	164	*pd = pd[800/2] = p;\r
	165	pd++;\r
	166	\r
	167	p = p1 >> 16;\r
	168	p \|= p << 16;\r
	169	*pd = pd[800/2] = p;\r
	170	pd++;\r
	171	}\r
	172	\r
	173	return 0;\r
	174	}\r
f6eaae4f	175	#endif\r
de9b1274	176	\r
b188c2b6	177	void pemu_finalize_frame(const char fps, const char notice)\r
492d353a	178	{\r
d2f29611	179	if (notice \|\| (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r
d2f29611	180	if (notice)\r
b188c2b6	181	osd_text(4, 464, notice);\r
d2f29611	182	if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
b188c2b6	183	osd_text(640, 464, fps);\r
492d353a	184	}\r
d2f29611	185	if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
492d353a	186	draw_cd_leds();\r
d2f29611	187	}\r
492d353a	188	\r
662e622b	189	void plat_video_toggle_renderer(int change, int is_menu)\r
d2f29611	190	{\r
d2f29611	191	// this will auto-select SMS/32X renderers\r
662e622b	192	PicoDrawSetOutFormat(PDF_RGB555, 1);\r
492d353a	193	}\r
492d353a	194	\r
d2f29611	195	void plat_video_menu_enter(int is_rom_loaded)\r
	196	{\r
	197	}\r
492d353a	198	\r
d2f29611	199	void plat_video_menu_begin(void)\r
492d353a	200	{\r
d2f29611	201	memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);\r
492d353a	202	}\r
492d353a	203	\r
d2f29611	204	void plat_video_menu_end(void)\r
d2f29611	205	{\r
b188c2b6	206	plat_video_flip();\r
d2f29611	207	}\r
492d353a	208	\r
d2f29611	209	void plat_status_msg_clear(void)\r
492d353a	210	{\r
b188c2b6	211	int s = g_screen_width * g_screen_height * 2;\r
	212	int l = g_screen_width * 16 * 2;\r
	213	int i;\r
	214	\r
	215	for (i = 0; i < fbdev_buffer_count; i++)\r
	216	memset32((int )((char )fbdev_buffers[i] + s - l), 0, l / 4);\r
492d353a	217	}\r
492d353a	218	\r
d2f29611	219	void plat_status_msg_busy_next(const char *msg)\r
	220	{\r
	221	plat_status_msg_clear();\r
b188c2b6	222	pemu_finalize_frame("", msg);\r
b188c2b6	223	plat_video_flip();\r
d2f29611	224	emu_status_msg("");\r
	225	reset_timing = 1;\r
	226	}\r
492d353a	227	\r
d2f29611	228	void plat_status_msg_busy_first(const char *msg)\r
	229	{\r
	230	// memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
	231	plat_status_msg_busy_next(msg);\r
	232	}\r
	233	\r
	234	void plat_update_volume(int has_changed, int is_up)\r
492d353a	235	{\r
	236	static int prev_frame = 0, wait_frames = 0;\r
	237	int vol = currentConfig.volume;\r
	238	\r
	239	if (has_changed)\r
	240	{\r
d2f29611	241	if (is_up) {\r
	242	if (vol < 99) vol++;\r
	243	} else {\r
	244	if (vol > 0) vol--;\r
492d353a	245	}\r
d2f29611	246	wait_frames = 0;\r
	247	sndout_oss_setvol(vol, vol);\r
	248	currentConfig.volume = vol;\r
	249	emu_status_msg("VOL: %02i", vol);\r
492d353a	250	prev_frame = Pico.m.frame_count;\r
492d353a	251	}\r
492d353a	252	}\r
492d353a	253	\r
209a7eff	254	void pemu_forced_frame(int opts, int no_scale)\r
492d353a	255	{\r
209a7eff	256	int oldscale = currentConfig.scaling;\r
492d353a	257	int po_old = PicoOpt;\r
492d353a	258	\r
209a7eff	259	if (no_scale) {\r
	260	currentConfig.scaling = SCALE_1x1;\r
	261	emu_video_mode_change(0, 0, 0);\r
	262	}\r
	263	\r
	264	PicoOpt &= ~POPT_ALT_RENDERER;\r
492d353a	265	PicoOpt \|= opts\|POPT_ACC_SPRITES; // acc_sprites\r
492d353a	266	\r
492d353a	267	Pico.m.dirtyPal = 1;\r
	268	PicoFrameDrawOnly();\r
	269	\r
492d353a	270	PicoOpt = po_old;\r
209a7eff	271	currentConfig.scaling = oldscale;\r
492d353a	272	}\r
492d353a	273	\r
d2f29611	274	static void updateSound(int len)\r
492d353a	275	{\r
b188c2b6	276	unsigned int t;\r
b188c2b6	277	\r
d2f29611	278	len <<= 1;\r
	279	if (PicoOpt & POPT_EN_STEREO)\r
	280	len <<= 1;\r
492d353a	281	\r
b188c2b6	282	// sndout_oss_can_write() not reliable..\r
d2f29611	283	if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
d2f29611	284	return;\r
492d353a	285	\r
d2f29611	286	/* avoid writing audio when lagging behind to prevent audio lag */\r
b188c2b6	287	if (PicoSkipFrame == 2)\r
	288	return;\r
	289	\r
	290	t = plat_get_ticks_ms();\r
	291	sndout_oss_write(PsndOut, len);\r
	292	t = plat_get_ticks_ms() - t;\r
	293	if (t > 1)\r
	294	printf("audio lag %u\n", t);\r
492d353a	295	}\r
492d353a	296	\r
93c18cb4	297	void pemu_sound_start(void)\r
fce20e73	298	{\r
fce20e73	299	int target_fps = Pico.m.pal ? 50 : 60;\r
	300	\r
	301	PsndOut = NULL;\r
	302	\r
b188c2b6	303	if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
fce20e73	304	{\r
b188c2b6	305	int snd_excess_add, frame_samples;\r
	306	int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
	307	\r
	308	PsndRerate(Pico.m.frame_count ? 1 : 0);\r
	309	\r
	310	frame_samples = PsndLen;\r
	311	snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
	312	if (snd_excess_add != 0)\r
	313	frame_samples++;\r
fce20e73	314	\r
fce20e73	315	printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
b188c2b6	316	PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
	317	sndout_oss_start(PsndRate, frame_samples * 2, is_stereo);\r
	318	//sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
fce20e73	319	PicoWriteSound = updateSound;\r
d2f29611	320	plat_update_volume(0, 0);\r
fce20e73	321	memset(sndBuffer, 0, sizeof(sndBuffer));\r
fce20e73	322	PsndOut = sndBuffer;\r
fce20e73	323	}\r
	324	}\r
	325	\r
93c18cb4	326	void pemu_sound_stop(void)\r
fce20e73	327	{\r
b188c2b6	328	sndout_oss_stop();\r
fce20e73	329	}\r
fce20e73	330	\r
93c18cb4	331	void pemu_sound_wait(void)\r
fce20e73	332	{\r
	333	// don't need to do anything, writes will block by themselves\r
	334	}\r
492d353a	335	\r
d2f29611	336	void plat_debug_cat(char *str)\r
492d353a	337	{\r
d2f29611	338	}\r
492d353a	339	\r
d2f29611	340	void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
d2f29611	341	{\r
b188c2b6	342	int i;\r
492d353a	343	\r
d2f29611	344	// clear whole screen in all buffers\r
b188c2b6	345	for (i = 0; i < fbdev_buffer_count; i++)\r
b188c2b6	346	memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4);\r
492d353a	347	\r
f6eaae4f	348	PicoScanBegin = NULL;\r
	349	PicoScanEnd = NULL;\r
	350	\r
	351	#if 0\r
b188c2b6	352	if (PicoAHW & PAHW_32X) {\r
f6eaae4f	353	/* FIXME */\r
b188c2b6	354	DrawLineDest = (unsigned short *)temp_frame;\r
662e622b	355	PicoDrawSetOutFormat(PDF_RGB555, 1);\r
b188c2b6	356	PicoScanEnd = EmuScanEnd16_32x;\r
f6eaae4f	357	} else\r
492d353a	358	#endif\r
f6eaae4f	359	{\r
	360	switch (currentConfig.scaling) {\r
	361	case SCALE_1x1:\r
	362	PicoDrawSetOutFormat(PDF_RGB555, 1);\r
	363	PicoScanBegin = emuscan_1x1;\r
	364	break;\r
	365	case SCALE_2x2_3x2:\r
	366	PicoDrawSetOutFormat(PDF_NONE, 0);\r
	367	PicoScanEnd = is_32cols ? emuscan_3x2_32 : emuscan_2x2_40;\r
	368	break;\r
	369	case SCALE_2x2_2x2:\r
	370	PicoDrawSetOutFormat(PDF_NONE, 0);\r
	371	PicoScanEnd = is_32cols ? emuscan_2x2_32 : emuscan_2x2_40;\r
	372	break;\r
	373	}\r
	374	}\r
b188c2b6	375	}\r
492d353a	376	\r
b188c2b6	377	void pemu_loop_prep(void)\r
b188c2b6	378	{\r
f6eaae4f	379	if (currentConfig.CPUclock != get_cpu_clock()) {\r
209a7eff	380	char buf[64];\r
	381	snprintf(buf, sizeof(buf), "sudo /usr/pandora/scripts/op_cpuspeed.sh %d",\r
	382	currentConfig.CPUclock);\r
	383	system(buf);\r
f6eaae4f	384	}\r
f6eaae4f	385	\r
d2f29611	386	pemu_sound_start();\r
d2f29611	387	}\r
492d353a	388	\r
d2f29611	389	void pemu_loop_end(void)\r
	390	{\r
	391	int po_old = PicoOpt;\r
	392	int eo_old = currentConfig.EmuOpt;\r
492d353a	393	\r
d2f29611	394	pemu_sound_stop();\r
d2f29611	395	memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
492d353a	396	\r
d2f29611	397	/* do one more frame for menu bg */\r
	398	PicoOpt &= ~POPT_ALT_RENDERER;\r
	399	PicoOpt \|= POPT_EN_SOFTSCALE\|POPT_ACC_SPRITES;\r
	400	currentConfig.EmuOpt \|= EOPT_16BPP;\r
492d353a	401	\r
662e622b	402	PicoDrawSetOutFormat(PDF_RGB555, 1);\r
d2f29611	403	Pico.m.dirtyPal = 1;\r
d2f29611	404	PicoFrame();\r
492d353a	405	\r
d2f29611	406	PicoOpt = po_old;\r
	407	currentConfig.EmuOpt = eo_old;\r
	408	}\r
492d353a	409	\r
d2f29611	410	void plat_wait_till_us(unsigned int us_to)\r
	411	{\r
	412	unsigned int now;\r
b188c2b6	413	signed int diff;\r
492d353a	414	\r
d2f29611	415	now = plat_get_ticks_us();\r
492d353a	416	\r
f6eaae4f	417	// XXX: need to check NOHZ\r
b188c2b6	418	diff = (signed int)(us_to - now);\r
	419	if (diff > 10000) {\r
	420	//printf("sleep %d\n", us_to - now);\r
	421	usleep(diff * 15 / 16);\r
	422	now = plat_get_ticks_us();\r
	423	//printf(" wake %d\n", (signed)(us_to - now));\r
	424	}\r
	425	/*\r
	426	while ((signed int)(us_to - now) > 512) {\r
d2f29611	427	spend_cycles(1024);\r
d2f29611	428	now = plat_get_ticks_us();\r
492d353a	429	}\r
b188c2b6	430	*/\r
492d353a	431	}\r
492d353a	432	\r
d2f29611	433	const char *plat_get_credits(void)\r
d2f29611	434	{\r
0c9ae592	435	return "PicoDrive v" VERSION " (c) notaz, 2006-2010\n\n\n"\r
d2f29611	436	"Credits:\n"\r
	437	"fDave: Cyclone 68000 core,\n"\r
	438	" base code of PicoDrive\n"\r
	439	"Reesy & FluBBa: DrZ80 core\n"\r
	440	"MAME devs: YM2612 and SN76496 cores\n"\r
f6eaae4f	441	"Pandora team: Pandora\n"\r
209a7eff	442	"Inder, ketchupgun: graphics\n"\r
d2f29611	443	"\n"\r
	444	"special thanks (for docs, ideas):\n"\r
	445	" Charles MacDonald, Haze,\n"\r
	446	" Stephane Dallongeville,\n"\r
	447	" Lordus, Exophase, Rokas,\n"\r
	448	" Nemesis, Tasco Deluxe";\r
	449	}\r