X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=linux%2Femu.c;h=95666ad25ba41ab89d6172fd683a2726439be494;hb=f342bededbe5d51afd1632e689f5105e50d4f63e;hp=98e2b72e52417bb9b54754739f3672ae505f3415;hpb=b188c2b6d0448a9c328a9dcae5ba5c8c8b5273f3;p=libpicofe.git

diff --git a/linux/emu.c b/linux/emu.c
index 98e2b72..95666ad 100644
--- a/linux/emu.c
+++ b/linux/emu.c
@@ -17,7 +17,9 @@
 
 
 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
-char cpu_clk_name[] = "unused";
+const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };
+const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };
+enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };
 
 
 void pemu_prep_defconfig(void)
@@ -75,7 +77,7 @@ static void draw_cd_leds(void)
 	led_offs = 4;
 	scr_offs = pitch * 2 + 4;
 
-	if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
+	if (currentConfig.renderer != RT_16BIT) {
 	#define p(x) px[(x) >> 2]
 		// 8-bit modes
 		unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);
@@ -96,15 +98,20 @@ static void draw_cd_leds(void)
 	}
 }
 
-static int EmuScanBegin16(unsigned int num)
-{
-	DrawLineDest = (unsigned short *)g_screen_ptr + num * g_screen_width;
-
-	return 0;
-}
-
 void pemu_finalize_frame(const char *fps, const char *notice)
 {
+	if (currentConfig.renderer != RT_16BIT && !(PicoAHW & PAHW_32X)) {
+		unsigned short *pd = (unsigned short *)g_screen_ptr + 8 * g_screen_width;
+		unsigned char *ps = PicoDraw2FB + 328*8 + 8;
+		unsigned short *pal = HighPal;
+		int i, x;
+		if (Pico.m.dirtyPal)
+			PicoDrawUpdateHighPal();
+		for (i = 0; i < 224; i++, ps += 8)
+			for (x = 0; x < 320; x++)
+				*pd++ = pal[*ps++];
+	}
+
 	if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {
 		if (notice)
 			osd_text(4, g_screen_height - 8, notice);
@@ -115,10 +122,50 @@ void pemu_finalize_frame(const char *fps, const char *notice)
 		draw_cd_leds();
 }
 
-void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu)
+static void apply_renderer(void)
+{
+	switch (currentConfig.renderer) {
+	case RT_16BIT:
+		PicoOpt &= ~POPT_ALT_RENDERER;
+		PicoDrawSetOutFormat(PDF_RGB555, 0);
+		PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
+		break;
+	case RT_8BIT_ACC:
+		PicoOpt &= ~POPT_ALT_RENDERER;
+		PicoDrawSetOutFormat(PDF_8BIT, 0);
+		PicoDrawSetOutBuf(PicoDraw2FB + 8, 328);
+		break;
+	case RT_8BIT_FAST:
+		PicoOpt |=  POPT_ALT_RENDERER;
+		PicoDrawSetOutFormat(PDF_NONE, 0);
+		break;
+	}
+
+	if (PicoAHW & PAHW_32X) {
+		int only_32x = 0;
+		if (currentConfig.renderer == RT_16BIT)
+			only_32x = 1;
+		else
+			PicoDrawSetOutFormat(PDF_NONE, 0);
+		PicoDraw32xSetFrameMode(1, only_32x);
+		PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
+	}
+	//PicoDraw32xSetFrameMode(0, 0);
+	//PicoDrawSetOutFormat(PDF_RGB555, 1);
+}
+
+void plat_video_toggle_renderer(int change, int is_menu)
 {
-	// this will auto-select SMS/32X renderers
-	PicoDrawSetColorFormat(1);
+	currentConfig.renderer += change;
+	if      (currentConfig.renderer >= RT_COUNT)
+		currentConfig.renderer = 0;
+	else if (currentConfig.renderer < 0)
+		currentConfig.renderer = RT_COUNT - 1;
+
+	if (!is_menu)
+		apply_renderer();
+
+	emu_status_msg(renderer_names[currentConfig.renderer]);
 }
 
 void plat_video_menu_enter(int is_rom_loaded)
@@ -127,7 +174,7 @@ void plat_video_menu_enter(int is_rom_loaded)
 
 void plat_video_menu_begin(void)
 {
-	memcpy32(g_screen_ptr, g_menubg_ptr, g_screen_width * g_screen_height * 2 / 4);
+	g_menuscreen_ptr = g_screen_ptr;
 }
 
 void plat_video_menu_end(void)
@@ -161,62 +208,42 @@ void plat_update_volume(int has_changed, int is_up)
 {
 }
 
-void pemu_forced_frame(int opts)
+void pemu_forced_frame(int no_scale, int do_emu)
 {
-	int po_old = PicoOpt;
-	int eo_old = currentConfig.EmuOpt;
-
-	PicoOpt &= ~POPT_ALT_RENDERER;
-	PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites
-	currentConfig.EmuOpt |= EOPT_16BPP;
-
-	PicoDrawSetColorFormat(1);
-	PicoScanBegin = EmuScanBegin16;
-
+	PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
+	PicoDraw32xSetFrameMode(0, 0);
+	PicoDrawSetCallbacks(NULL, NULL);
 	Pico.m.dirtyPal = 1;
-	PicoFrameDrawOnly();
 
-	PicoOpt = po_old;
-	currentConfig.EmuOpt = eo_old;
+	emu_cmn_forced_frame(no_scale, do_emu);
+
+	g_menubg_src_ptr = g_screen_ptr;
 }
 
-static void updateSound(int len)
+static void oss_write_nonblocking(int len)
 {
-	len <<= 1;
-	if (PicoOpt & POPT_EN_STEREO)
-		len <<= 1;
-
+	// sndout_oss_can_write() is not reliable, only use with no_frmlimit
 	if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
 		return;
 
-	/* avoid writing audio when lagging behind to prevent audio lag */
-	if (PicoSkipFrame != 2)
-		sndout_oss_write(PsndOut, len);
+	sndout_oss_write_nb(PsndOut, len);
 }
 
 void pemu_sound_start(void)
 {
-	int target_fps = Pico.m.pal ? 50 : 60;
-
 	PsndOut = NULL;
 
 	if (currentConfig.EmuOpt & EOPT_EN_SOUND)
 	{
-		int snd_excess_add, frame_samples;
 		int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
 
 		PsndRerate(Pico.m.frame_count ? 1 : 0);
 
-		frame_samples = PsndLen;
-		snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;
-		if (snd_excess_add != 0)
-			frame_samples++;
-
-		printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
-			PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);
-		sndout_oss_start(PsndRate, frame_samples, is_stereo);
+		printf("starting audio: %i len: %i stereo: %i, pal: %i\n",
+			PsndRate, PsndLen, is_stereo, Pico.m.pal);
+		sndout_oss_start(PsndRate, is_stereo, 1);
 		sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
-		PicoWriteSound = updateSound;
+		PicoWriteSound = oss_write_nonblocking;
 		plat_update_volume(0, 0);
 		memset(sndBuffer, 0, sizeof(sndBuffer));
 		PsndOut = sndBuffer;
@@ -244,8 +271,7 @@ void emu_video_mode_change(int start_line, int line_count, int is_32cols)
 
 void pemu_loop_prep(void)
 {
-	PicoDrawSetColorFormat(1);
-	PicoScanBegin = EmuScanBegin16;
+	apply_renderer();
 	osd_text = osd_text16;
 
 	pemu_sound_start();
@@ -253,23 +279,10 @@ void pemu_loop_prep(void)
 
 void pemu_loop_end(void)
 {
-	int po_old = PicoOpt;
-	int eo_old = currentConfig.EmuOpt;
-
 	pemu_sound_stop();
-	memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);
 
 	/* do one more frame for menu bg */
-	PicoOpt &= ~POPT_ALT_RENDERER;
-	PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;
-	currentConfig.EmuOpt |= EOPT_16BPP;
-
-	PicoDrawSetColorFormat(1);
-	Pico.m.dirtyPal = 1;
-	PicoFrame();
-
-	PicoOpt = po_old;
-	currentConfig.EmuOpt = eo_old;
+	pemu_forced_frame(0, 1);
 }
 
 void plat_wait_till_us(unsigned int us_to)
@@ -285,24 +298,3 @@ void plat_wait_till_us(unsigned int us_to)
 	}
 }
 
-const char *plat_get_credits(void)
-{
-	return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"
-		"Credits:\n"
-		"fDave: Cyclone 68000 core,\n"
-		"      base code of PicoDrive\n"
-		"Reesy & FluBBa: DrZ80 core\n"
-		"MAME devs: YM2612 and SN76496 cores\n"
-		"rlyeh and others: minimal SDK\n"
-		"Squidge: mmuhack\n"
-		"Dzz: ARM940 sample\n"
-		"GnoStiC / Puck2099: USB joy code\n"
-		"craigix: GP2X hardware\n"
-		"ketchupgun: skin design\n"
-		"\n"
-		"special thanks (for docs, ideas):\n"
-		" Charles MacDonald, Haze,\n"
-		" Stephane Dallongeville,\n"
-		" Lordus, Exophase, Rokas,\n"
-		" Nemesis, Tasco Deluxe";
-}