tweaking pandora frontend
[libpicofe.git] / pandora / emu.c
index f7c2a2e..a9556b1 100644 (file)
 \r
 #include <pico/pico_int.h>\r
 \r
-//#define USE_320_SCREEN 1\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
-char cpu_clk_name[] = "unused";\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
@@ -32,10 +49,12 @@ void pemu_prep_defconfig(void)
        g_menubg_ptr = temp_frame;\r
 \r
        defaultConfig.EmuOpt |= EOPT_VSYNC;\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
@@ -43,7 +62,7 @@ static void osd_text(int x, int y, const char *text)
 {\r
        int len = strlen(text)*8;\r
 \r
-       if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
+       if (0) {\r
                int *p, i, h;\r
                x &= ~3; // align x\r
                len = (len+3) >> 2;\r
@@ -71,7 +90,7 @@ static void draw_cd_leds(void)
 //     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 ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\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
@@ -92,9 +111,7 @@ static void draw_cd_leds(void)
        }\r
 }\r
 \r
-#ifdef USE_320_SCREEN\r
-\r
-static int EmuScanBegin16(unsigned int num)\r
+static int emuscan_1x1(unsigned int num)\r
 {\r
        DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;\r
        //int w = (Pico.video.reg[12]&1) ? 320 : 256;\r
@@ -103,47 +120,32 @@ static int EmuScanBegin16(unsigned int num)
        return 0;\r
 }\r
 \r
-#else // USE_320_SCREEN\r
-\r
-static int EmuScanEnd16(unsigned int num)\r
-{\r
-       unsigned char  *ps=HighCol+8;\r
-       unsigned short *pd;\r
-       unsigned short *pal=HighPal;\r
-       int sh = Pico.video.reg[0xC]&8;\r
-       int len, mask = 0xff;\r
-\r
-       pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;\r
-\r
-       if (Pico.m.dirtyPal)\r
-               PicoDoHighPal555(sh);\r
-\r
-       if (Pico.video.reg[12]&1) {\r
-               len = 320;\r
-       } else {\r
-               pd += 32*2;\r
-               len = 256;\r
-       }\r
-\r
-       if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))\r
-               mask=0x3f; // messed sprites, upper bits are priority stuff\r
-\r
-#if 1\r
-       clut_line(pd, ps, pal, (mask<<16) | len);\r
-#else\r
-       for (; len > 0; len--)\r
-       {\r
-               unsigned int p = pal[*ps++ & mask];\r
-               p |= p << 16;\r
-               *(unsigned int *)pd = p;\r
-               *(unsigned int *)(&pd[800]) = p;\r
-               pd += 2;\r
-       }\r
-#endif\r
-\r
-       return 0;\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
@@ -169,7 +171,7 @@ static int EmuScanEnd16_32x(unsigned int num)
 \r
        return 0;\r
 }\r
-#endif // USE_320_SCREEN\r
+#endif\r
 \r
 void pemu_finalize_frame(const char *fps, const char *notice)\r
 {\r
@@ -183,10 +185,10 @@ void pemu_finalize_frame(const char *fps, const char *notice)
                draw_cd_leds();\r
 }\r
 \r
-void plat_video_toggle_renderer(int is_next, int force_16bpp, int is_menu)\r
+void plat_video_toggle_renderer(int change, int is_menu)\r
 {\r
        // this will auto-select SMS/32X renderers\r
-       PicoDrawSetColorFormat(1);\r
+       PicoDrawSetOutFormat(PDF_RGB555, 1);\r
 }\r
 \r
 void plat_video_menu_enter(int is_rom_loaded)\r
@@ -251,17 +253,14 @@ void plat_update_volume(int has_changed, int is_up)
 void pemu_forced_frame(int opts)\r
 {\r
        int po_old = PicoOpt;\r
-       int eo_old = currentConfig.EmuOpt;\r
 \r
        PicoOpt &= ~0x10;\r
        PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
-       currentConfig.EmuOpt |= 0x80;\r
 \r
        Pico.m.dirtyPal = 1;\r
        PicoFrameDrawOnly();\r
 \r
        PicoOpt = po_old;\r
-       currentConfig.EmuOpt = eo_old;\r
 }\r
 \r
 static void updateSound(int len)\r
@@ -338,26 +337,47 @@ void emu_video_mode_change(int start_line, int line_count, int is_32cols)
        for (i = 0; i < fbdev_buffer_count; i++)\r
                memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4);\r
 \r
-#ifdef USE_320_SCREEN\r
-       PicoDrawSetColorFormat(1);\r
-       PicoScanBegin = EmuScanBegin16;\r
-#else\r
+       PicoScanBegin = NULL;\r
+       PicoScanEnd = NULL;\r
+\r
+#if 0\r
        if (PicoAHW & PAHW_32X) {\r
+               /* FIXME */\r
                DrawLineDest = (unsigned short *)temp_frame;\r
-               PicoDrawSetColorFormat(1);\r
-               PicoScanBegin = NULL;\r
+               PicoDrawSetOutFormat(PDF_RGB555, 1);\r
                PicoScanEnd = EmuScanEnd16_32x;\r
-       } else {\r
-               PicoDrawSetColorFormat(-1);\r
-               PicoScanBegin = NULL;\r
-               PicoScanEnd = EmuScanEnd16;\r
-       }\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
        emu_video_mode_change(0, 0, 0);\r
+       \r
+       if (currentConfig.CPUclock != get_cpu_clock()) {\r
+               FILE *f = fopen("/proc/pandora/cpu_mhz_max", "w");\r
+               if (f != NULL) {\r
+                       fprintf(f, "%d\n", currentConfig.CPUclock);\r
+                       fclose(f);\r
+               }\r
+       }\r
+\r
        pemu_sound_start();\r
 }\r
 \r
@@ -374,7 +394,7 @@ void pemu_loop_end(void)
        PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
        currentConfig.EmuOpt |= EOPT_16BPP;\r
 \r
-       PicoDrawSetColorFormat(1);\r
+       PicoDrawSetOutFormat(PDF_RGB555, 1);\r
        Pico.m.dirtyPal = 1;\r
        PicoFrame();\r
 \r
@@ -389,7 +409,7 @@ void plat_wait_till_us(unsigned int us_to)
 \r
        now = plat_get_ticks_us();\r
 \r
-       // XXX: need to check NOHZ and djw kernel\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
@@ -407,18 +427,14 @@ void plat_wait_till_us(unsigned int us_to)
 \r
 const char *plat_get_credits(void)\r
 {\r
-       return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\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
-               "rlyeh and others: minimal SDK\n"\r
-               "Squidge: mmuhack\n"\r
-               "Dzz: ARM940 sample\n"\r
-               "GnoStiC / Puck2099: USB joy code\n"\r
-               "craigix: GP2X hardware\n"\r
-               "ketchupgun: skin design\n"\r
+               "Pandora team: Pandora\n"\r
+               "Inder: menu bg\n"\r
                "\n"\r
                "special thanks (for docs, ideas):\n"\r
                " Charles MacDonald, Haze,\n"\r