mirror of
https://github.com/RaySollium99/libpicofe.git
synced 2025-09-05 06:47:45 -04:00
053bef765a
git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@719 be3aeb3a-fb24-0410-a615-afba39da0efa
995 lines
26 KiB
C
995 lines
26 KiB
C
// (c) Copyright 2006-2009 notaz, All rights reserved.
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// Free for non-commercial use.
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// For commercial use, separate licencing terms must be obtained.
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <stdarg.h>
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#include "plat_gp2x.h"
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#include "soc.h"
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#include "../common/plat.h"
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#include "../common/menu.h"
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#include "../common/arm_utils.h"
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#include "../common/fonts.h"
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#include "../common/emu.h"
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#include "../common/config.h"
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#include "../linux/sndout_oss.h"
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#include "version.h"
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#include <pico/pico_int.h>
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#include <pico/patch.h>
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#include <pico/sound/mix.h>
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#include <zlib/zlib.h>
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//#define PFRAMES
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#ifdef BENCHMARK
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#define OSD_FPS_X 220
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#else
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#define OSD_FPS_X 260
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#endif
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extern int crashed_940;
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static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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static struct timeval noticeMsgTime = { 0, 0 }; // when started showing
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static char noticeMsg[40];
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static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
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unsigned char *PicoDraw2FB = PicoDraw2FB_;
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static int osd_fps_x;
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extern void *gp2x_screens[4];
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void plat_status_msg(const char *format, ...)
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{
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va_list vl;
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va_start(vl, format);
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vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);
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va_end(vl);
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gettimeofday(¬iceMsgTime, 0);
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}
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int plat_get_root_dir(char *dst, int len)
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{
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extern char **g_argv;
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int j;
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strncpy(dst, g_argv[0], len);
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len -= 32; // reserve
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if (len < 0) len = 0;
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dst[len] = 0;
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for (j = strlen(dst); j > 0; j--)
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if (dst[j] == '/') { dst[j+1] = 0; break; }
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return j + 1;
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}
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static void scaling_update(void)
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{
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PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);
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switch (currentConfig.scaling) {
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default:break;
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case EOPT_SCALE_HW_H:
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case EOPT_SCALE_HW_HV:
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PicoOpt |= POPT_DIS_32C_BORDER;
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break;
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case EOPT_SCALE_SW_H:
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PicoOpt |= POPT_EN_SOFTSCALE;
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break;
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}
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}
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void pemu_prep_defconfig(void)
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{
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gp2x_soc_t soc;
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memset(&defaultConfig, 0, sizeof(defaultConfig));
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defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_CONFIRM_SAVE|EOPT_EN_CD_LEDS;
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defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;
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defaultConfig.s_PsndRate = 44100;
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defaultConfig.s_PicoRegion = 0; // auto
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defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
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defaultConfig.s_PicoCDBuffers = 0;
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defaultConfig.Frameskip = -1; // auto
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defaultConfig.CPUclock = default_cpu_clock;
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defaultConfig.volume = 50;
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defaultConfig.gamma = 100;
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defaultConfig.scaling = 0;
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defaultConfig.turbo_rate = 15;
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soc = soc_detect();
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if (soc == SOCID_MMSP2)
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defaultConfig.s_PicoOpt |= POPT_EXT_FM;
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else if (soc == SOCID_POLLUX)
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defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;
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}
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static void (*osd_text)(int x, int y, const char *text);
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static void osd_text8(int x, int y, const char *text)
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{
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int len = strlen(text)*8;
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int *p, i, h, offs;
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len = (len+3) >> 2;
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for (h = 0; h < 8; h++) {
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offs = (x + g_screen_width * (y+h)) & ~3;
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p = (int *) ((char *)g_screen_ptr + offs);
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for (i = len; i; i--, p++)
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*p = 0xe0e0e0e0;
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}
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emu_text_out8(x, y, text);
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}
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static void osd_text16(int x, int y, const char *text)
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{
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int len = strlen(text)*8;
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int *p, i, h, offs;
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len = (len+1) >> 1;
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for (h = 0; h < 8; h++) {
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offs = (x + g_screen_width * (y+h)) & ~1;
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p = (int *) ((short *)g_screen_ptr + offs);
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for (i = len; i; i--, p++)
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*p = (*p >> 2) & 0x39e7;
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}
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emu_text_out16(x, y, text);
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}
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static void osd_text8_rot(int x, int y, const char *text)
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{
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int len = strlen(text) * 8;
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char *p = (char *)g_screen_ptr + 240*(320-x) + y;
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while (len--) {
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memset(p, 0xe0, 8);
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p -= 240;
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}
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emu_text_out8_rot(x, y, text);
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}
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static void osd_text16_rot(int x, int y, const char *text)
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{
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int len = strlen(text) * 8;
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short *p = (short *)g_screen_ptr + 240*(320-x) + y;
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while (len--) {
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memset(p, 0, 8*2);
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p -= 240;
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}
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emu_text_out16_rot(x, y, text);
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}
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static void draw_cd_leds(void)
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{
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int led_reg, pitch, scr_offs, led_offs;
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led_reg = Pico_mcd->s68k_regs[0];
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if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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pitch = 240;
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led_offs = -pitch * 6;
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scr_offs = pitch * (320 - 4);
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} else {
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pitch = 320;
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led_offs = 4;
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scr_offs = pitch * 2 + 4;
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}
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if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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#define p(x) px[(x) >> 2]
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// 8-bit modes
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unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);
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unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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#undef p
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} else {
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#define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]
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// 16-bit modes
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unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);
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unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;
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unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;
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p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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#undef p
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}
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}
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static void draw_pico_ptr(void)
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{
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unsigned short *p = (unsigned short *)g_screen_ptr;
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int x, y, pitch = 320;
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// only if pen enabled and for 16bit modes
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if (pico_inp_mode == 0 || (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP))
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return;
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x = pico_pen_x + PICO_PEN_ADJUST_X;
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y = pico_pen_y + PICO_PEN_ADJUST_Y;
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if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))
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x += 32;
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if (EOPT_WIZ_TEAR_FIX) {
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pitch = 240;
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p += (319 - x) * pitch + y;
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} else
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p += x + y * pitch;
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p[0] ^= 0xffff;
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p[pitch-1] ^= 0xffff;
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p[pitch] ^= 0xffff;
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p[pitch+1] ^= 0xffff;
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p[pitch*2] ^= 0xffff;
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}
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static int EmuScanBegin16(unsigned int num)
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{
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if (!(Pico.video.reg[1]&8)) num += 8;
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DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;
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return 0;
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}
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static int EmuScanBegin8(unsigned int num)
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{
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if (!(Pico.video.reg[1]&8)) num += 8;
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DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num;
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return 0;
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}
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/* rot thing for Wiz */
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static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];
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static int EmuScanBegin16_rot(unsigned int num)
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{
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DrawLineDest = rot_buff + (num & 3) * 320 * 2;
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return 0;
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}
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static int EmuScanEnd16_rot(unsigned int num)
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{
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if ((num & 3) != 3)
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return 0;
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if (!(Pico.video.reg[1] & 8))
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num += 8;
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rotated_blit16(g_screen_ptr, rot_buff, num + 1,
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!(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));
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return 0;
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}
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static int EmuScanBegin8_rot(unsigned int num)
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{
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DrawLineDest = rot_buff + (num & 3) * 320;
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return 0;
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}
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static int EmuScanEnd8_rot(unsigned int num)
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{
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if ((num & 3) != 3)
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return 0;
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if (!(Pico.video.reg[1] & 8))
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num += 8;
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rotated_blit8(g_screen_ptr, rot_buff, num + 1,
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!(Pico.video.reg[12] & 1));
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return 0;
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}
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int localPal[0x100];
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static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border) = NULL;
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static void blit(const char *fps, const char *notice)
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{
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int emu_opt = currentConfig.EmuOpt;
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if (PicoOpt & POPT_ALT_RENDERER)
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{
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// 8bit fast renderer
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if (Pico.m.dirtyPal) {
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Pico.m.dirtyPal = 0;
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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// feed new palette to our device
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gp2x_video_setpalette(localPal, 0x40);
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}
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// a hack for VR
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if (PicoRead16Hook == PicoSVPRead16)
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memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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// do actual copy
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vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,
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!(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));
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}
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else if (!(emu_opt & EOPT_16BPP))
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{
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// 8bit accurate renderer
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if (Pico.m.dirtyPal)
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{
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int pallen = 0xc0;
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Pico.m.dirtyPal = 0;
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if (Pico.video.reg[0xC]&8) // shadow/hilight mode
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{
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);
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vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);
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memcpy32(localPal+0xc0, localPal+0x40, 0x40);
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pallen = 0x100;
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}
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else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
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vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);
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}
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else {
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vidConvCpyRGB32(localPal, Pico.cram, 0x40);
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memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess
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}
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if (pallen > 0xc0) {
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localPal[0xc0] = 0x0000c000;
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localPal[0xd0] = 0x00c00000;
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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}
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gp2x_video_setpalette(localPal, pallen);
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}
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}
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if (notice || (emu_opt & 2)) {
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int h = 232;
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if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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h -= 8;
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if (notice)
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osd_text(4, h, notice);
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if (emu_opt & 2)
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osd_text(osd_fps_x, h, fps);
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}
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if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
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draw_cd_leds();
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if (PicoAHW & PAHW_PICO)
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draw_pico_ptr();
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gp2x_video_flip();
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}
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// clears whole screen or just the notice area (in all buffers)
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static void clearArea(int full)
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{
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int is_8bit = (PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP);
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if (!full && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {
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/* ugh.. */
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int i, u, *p;
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if (is_8bit) {
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for (i = 0; i < 4; i++) {
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p = (int *)gp2x_screens[i] + (240-8) / 4;
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for (u = 320; u > 0; u--, p += 240/4)
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p[0] = p[1] = 0xe0e0e0e0;
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}
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} else {
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for (i = 0; i < 4; i++) {
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p = (int *)gp2x_screens[i] + (240-8)*2 / 4;
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for (u = 320; u > 0; u--, p += 240*2/4)
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p[0] = p[1] = p[2] = p[3] = 0;
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}
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}
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return;
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}
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if (is_8bit) {
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// 8-bit renderers
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if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);
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else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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} else {
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// 16bit accurate renderer
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if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);
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else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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}
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}
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void plat_status_msg_busy_next(const char *msg)
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{
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clearArea(0);
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blit("", msg);
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/* assumption: msg_busy_next gets called only when
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* something slow is about to happen */
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reset_timing = 1;
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}
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void plat_status_msg_busy_first(const char *msg)
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{
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gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
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plat_status_msg_busy_next(msg);
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}
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static void vidResetMode(void)
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{
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PicoScanEnd = NULL;
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if (PicoOpt & POPT_ALT_RENDERER) {
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if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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gp2x_video_changemode(-8);
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vidcpyM2 = vidcpy_m2_rot;
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osd_text = osd_text8_rot;
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} else {
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gp2x_video_changemode(8);
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vidcpyM2 = vidcpy_m2;
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osd_text = osd_text8;
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}
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}
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else if (currentConfig.EmuOpt & EOPT_16BPP) {
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PicoDrawSetColorFormat(1);
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if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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gp2x_video_changemode(-16);
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PicoScanBegin = EmuScanBegin16_rot;
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PicoScanEnd = EmuScanEnd16_rot;
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osd_text = osd_text16_rot;
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} else {
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gp2x_video_changemode(16);
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PicoScanBegin = EmuScanBegin16;
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osd_text = osd_text16;
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}
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}
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else {
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PicoDrawSetColorFormat(2);
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if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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gp2x_video_changemode(-8);
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PicoScanBegin = EmuScanBegin8_rot;
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PicoScanEnd = EmuScanEnd8_rot;
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osd_text = osd_text8_rot;
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} else {
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gp2x_video_changemode(8);
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PicoScanBegin = EmuScanBegin8;
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osd_text = osd_text8;
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}
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}
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if ((PicoOpt & POPT_ALT_RENDERER) || !(currentConfig.EmuOpt & EOPT_16BPP)) {
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// setup pal for 8-bit modes
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localPal[0xc0] = 0x0000c000; // MCD LEDs
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localPal[0xd0] = 0x00c00000;
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localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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localPal[0xf0] = 0x00ffffff;
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gp2x_video_setpalette(localPal, 0x100);
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gp2x_memset_all_buffers(0, 0xe0, 320*240);
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gp2x_video_flip();
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}
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|
Pico.m.dirtyPal = 1;
|
|
|
|
// reset scaling
|
|
if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
|
|
gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
|
|
else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
|
|
}
|
|
|
|
void plat_video_toggle_renderer(int is_next, int is_menu)
|
|
{
|
|
/* alt, 16bpp, 8bpp */
|
|
if (PicoOpt & POPT_ALT_RENDERER) {
|
|
PicoOpt &= ~POPT_ALT_RENDERER;
|
|
if (is_next)
|
|
currentConfig.EmuOpt |= EOPT_16BPP;
|
|
} else if (!(currentConfig.EmuOpt & EOPT_16BPP)) {
|
|
if (is_next)
|
|
PicoOpt |= POPT_ALT_RENDERER;
|
|
else
|
|
currentConfig.EmuOpt |= EOPT_16BPP;
|
|
} else {
|
|
currentConfig.EmuOpt &= ~EOPT_16BPP;
|
|
if (!is_next)
|
|
PicoOpt |= POPT_ALT_RENDERER;
|
|
}
|
|
|
|
if (is_menu)
|
|
return;
|
|
|
|
vidResetMode();
|
|
|
|
if (PicoOpt & POPT_ALT_RENDERER) {
|
|
plat_status_msg(" 8bit fast renderer");
|
|
} else if (currentConfig.EmuOpt & EOPT_16BPP) {
|
|
plat_status_msg("16bit accurate renderer");
|
|
} else {
|
|
plat_status_msg(" 8bit accurate renderer");
|
|
}
|
|
}
|
|
|
|
#if 0 // TODO
|
|
static void RunEventsPico(unsigned int events)
|
|
{
|
|
int ret, px, py, lim_x;
|
|
static int pdown_frames = 0;
|
|
|
|
// for F200
|
|
ret = gp2x_touchpad_read(&px, &py);
|
|
if (ret >= 0)
|
|
{
|
|
if (ret > 35000)
|
|
{
|
|
if (pdown_frames++ > 5)
|
|
PicoPad[0] |= 0x20;
|
|
|
|
pico_pen_x = px;
|
|
pico_pen_y = py;
|
|
if (!(Pico.video.reg[12]&1)) {
|
|
pico_pen_x -= 32;
|
|
if (pico_pen_x < 0) pico_pen_x = 0;
|
|
if (pico_pen_x > 248) pico_pen_x = 248;
|
|
}
|
|
if (pico_pen_y > 224) pico_pen_y = 224;
|
|
}
|
|
else
|
|
pdown_frames = 0;
|
|
|
|
//if (ret == 0)
|
|
// PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void plat_update_volume(int has_changed, int is_up)
|
|
{
|
|
static int prev_frame = 0, wait_frames = 0;
|
|
int vol = currentConfig.volume;
|
|
int need_low_volume = 0;
|
|
gp2x_soc_t soc;
|
|
|
|
soc = soc_detect();
|
|
if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)
|
|
need_low_volume = 1;
|
|
|
|
if (has_changed)
|
|
{
|
|
if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
|
|
wait_frames++;
|
|
else {
|
|
if (is_up) {
|
|
if (vol < 99) vol++;
|
|
} else {
|
|
if (vol > 0) vol--;
|
|
}
|
|
wait_frames = 0;
|
|
sndout_oss_setvol(vol, vol);
|
|
currentConfig.volume = vol;
|
|
}
|
|
plat_status_msg("VOL: %02i", vol);
|
|
prev_frame = Pico.m.frame_count;
|
|
}
|
|
|
|
if (need_low_volume)
|
|
return;
|
|
|
|
/* set the right mixer func */
|
|
if (vol >= 5)
|
|
PsndMix_32_to_16l = mix_32_to_16l_stereo;
|
|
else {
|
|
mix_32_to_16l_level = 5 - vol;
|
|
PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
|
|
}
|
|
}
|
|
|
|
|
|
static void updateSound(int len)
|
|
{
|
|
if (PicoOpt&8) len<<=1;
|
|
|
|
/* avoid writing audio when lagging behind to prevent audio lag */
|
|
if (PicoSkipFrame != 2)
|
|
sndout_oss_write(PsndOut, len<<1);
|
|
}
|
|
|
|
void pemu_sound_start(void)
|
|
{
|
|
static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
|
|
int target_fps = Pico.m.pal ? 50 : 60;
|
|
|
|
PsndOut = NULL;
|
|
|
|
// prepare sound stuff
|
|
if (currentConfig.EmuOpt & 4)
|
|
{
|
|
int snd_excess_add;
|
|
if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||
|
|
((PicoOpt&0x200) && crashed_940)) {
|
|
PsndRerate(Pico.m.frame_count ? 1 : 0);
|
|
}
|
|
snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
|
|
printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
|
|
PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
|
|
sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
|
|
sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
|
|
PicoWriteSound = updateSound;
|
|
plat_update_volume(0, 0);
|
|
memset(sndBuffer, 0, sizeof(sndBuffer));
|
|
PsndOut = sndBuffer;
|
|
PsndRate_old = PsndRate;
|
|
PicoOpt_old = PicoOpt;
|
|
pal_old = Pico.m.pal;
|
|
}
|
|
}
|
|
|
|
void pemu_sound_stop(void)
|
|
{
|
|
}
|
|
|
|
void pemu_sound_wait(void)
|
|
{
|
|
// don't need to do anything, writes will block by themselves
|
|
}
|
|
|
|
|
|
static void SkipFrame(int do_audio)
|
|
{
|
|
PicoSkipFrame=do_audio ? 1 : 2;
|
|
PicoFrame();
|
|
PicoSkipFrame=0;
|
|
}
|
|
|
|
|
|
void pemu_forced_frame(int opts)
|
|
{
|
|
int po_old = PicoOpt;
|
|
int eo_old = currentConfig.EmuOpt;
|
|
|
|
PicoOpt &= ~POPT_ALT_RENDERER;
|
|
PicoOpt |= opts|POPT_ACC_SPRITES;
|
|
currentConfig.EmuOpt |= EOPT_16BPP;
|
|
|
|
PicoDrawSetColorFormat(1);
|
|
PicoScanBegin = EmuScanBegin16;
|
|
PicoScanEnd = NULL;
|
|
Pico.m.dirtyPal = 1;
|
|
PicoFrameDrawOnly();
|
|
|
|
PicoOpt = po_old;
|
|
currentConfig.EmuOpt = eo_old;
|
|
}
|
|
|
|
void plat_debug_cat(char *str)
|
|
{
|
|
}
|
|
|
|
static void simpleWait(int thissec, int lim_time)
|
|
{
|
|
struct timeval tval;
|
|
|
|
spend_cycles(1024);
|
|
gettimeofday(&tval, 0);
|
|
if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
|
|
while (tval.tv_usec < lim_time)
|
|
{
|
|
spend_cycles(1024);
|
|
gettimeofday(&tval, 0);
|
|
if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
}
|
|
}
|
|
|
|
|
|
#if 0
|
|
static void tga_dump(void)
|
|
{
|
|
#define BYTE unsigned char
|
|
#define WORD unsigned short
|
|
struct
|
|
{
|
|
BYTE IDLength; /* 00h Size of Image ID field */
|
|
BYTE ColorMapType; /* 01h Color map type */
|
|
BYTE ImageType; /* 02h Image type code */
|
|
WORD CMapStart; /* 03h Color map origin */
|
|
WORD CMapLength; /* 05h Color map length */
|
|
BYTE CMapDepth; /* 07h Depth of color map entries */
|
|
WORD XOffset; /* 08h X origin of image */
|
|
WORD YOffset; /* 0Ah Y origin of image */
|
|
WORD Width; /* 0Ch Width of image */
|
|
WORD Height; /* 0Eh Height of image */
|
|
BYTE PixelDepth; /* 10h Image pixel size */
|
|
BYTE ImageDescriptor; /* 11h Image descriptor byte */
|
|
} __attribute__((packed)) TGAHEAD;
|
|
static unsigned short oldscr[320*240];
|
|
FILE *f; char name[128]; int i;
|
|
|
|
memset(&TGAHEAD, 0, sizeof(TGAHEAD));
|
|
TGAHEAD.ImageType = 2;
|
|
TGAHEAD.Width = 320;
|
|
TGAHEAD.Height = 240;
|
|
TGAHEAD.PixelDepth = 16;
|
|
TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
|
|
|
|
#define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
|
|
|
|
for (i = 0; i < 320*240; i++)
|
|
if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
|
|
if (i < 320*240)
|
|
{
|
|
for (i = 0; i < 320*240; i++)
|
|
oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
|
|
sprintf(name, "%05i.tga", Pico.m.frame_count);
|
|
f = fopen(name, "wb");
|
|
if (!f) { printf("!f\n"); exit(1); }
|
|
fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
|
|
fwrite(oldscr, 1, 320*240*2, f);
|
|
fclose(f);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
void pemu_loop(void)
|
|
{
|
|
static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;
|
|
static int gp2x_old_gamma = 100;
|
|
char fpsbuff[24]; // fps count c string
|
|
struct timeval tval; // timing
|
|
int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
|
|
int frames_done, frames_shown, thissec; // actual frames
|
|
int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;
|
|
char *notice = 0;
|
|
|
|
printf("entered emu_Loop()\n");
|
|
|
|
if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {
|
|
if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)
|
|
set_ram_timings();
|
|
else
|
|
unset_ram_timings();
|
|
}
|
|
|
|
if (gp2x_old_clock < 0)
|
|
gp2x_old_clock = default_cpu_clock;
|
|
if (gp2x_old_clock != currentConfig.CPUclock) {
|
|
printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
|
|
gp2x_set_cpuclk(currentConfig.CPUclock);
|
|
gp2x_old_clock = currentConfig.CPUclock;
|
|
printf(" done\n");
|
|
}
|
|
|
|
if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {
|
|
set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
|
|
gp2x_old_gamma = currentConfig.gamma;
|
|
printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
|
|
}
|
|
|
|
if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) || Pico.m.pal != pal_old) {
|
|
if (currentConfig.EmuOpt & EOPT_PSYNC)
|
|
set_lcd_custom_rate(Pico.m.pal);
|
|
else
|
|
unset_lcd_custom_rate();
|
|
}
|
|
|
|
if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)
|
|
gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);
|
|
|
|
EmuOpt_old = currentConfig.EmuOpt;
|
|
pal_old = Pico.m.pal;
|
|
fpsbuff[0] = 0;
|
|
|
|
// make sure we are in correct mode
|
|
vidResetMode();
|
|
scaling_update();
|
|
Pico.m.dirtyPal = 1;
|
|
oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
|
|
|
|
// pal/ntsc might have changed, reset related stuff
|
|
target_fps = Pico.m.pal ? 50 : 60;
|
|
target_frametime = 1000000/target_fps;
|
|
reset_timing = 1;
|
|
|
|
pemu_sound_start();
|
|
|
|
// prepare CD buffer
|
|
if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
|
|
|
|
// calc vsync offset to sync timing code with vsync
|
|
if (currentConfig.EmuOpt & EOPT_PSYNC) {
|
|
gettimeofday(&tval, 0);
|
|
gp2x_video_wait_vsync();
|
|
gettimeofday(&tval, 0);
|
|
vsync_offset = tval.tv_usec;
|
|
while (vsync_offset >= target_frametime)
|
|
vsync_offset -= target_frametime;
|
|
if (!vsync_offset) vsync_offset++;
|
|
printf("vsync_offset: %i\n", vsync_offset);
|
|
} else
|
|
vsync_offset = 0;
|
|
|
|
frames_done = frames_shown = thissec =
|
|
pframes_done = pframes_shown = pthissec = 0;
|
|
|
|
// loop
|
|
while (engineState == PGS_Running)
|
|
{
|
|
int modes;
|
|
|
|
gettimeofday(&tval, 0);
|
|
if (reset_timing) {
|
|
reset_timing = 0;
|
|
pthissec = tval.tv_sec;
|
|
pframes_shown = pframes_done = tval.tv_usec/target_frametime;
|
|
}
|
|
|
|
// show notice message?
|
|
if (noticeMsgTime.tv_sec)
|
|
{
|
|
static int noticeMsgSum;
|
|
if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec
|
|
noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;
|
|
clearArea(0);
|
|
notice = 0;
|
|
} else {
|
|
int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
|
|
if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
|
|
notice = noticeMsg;
|
|
}
|
|
}
|
|
|
|
// check for mode changes
|
|
modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
|
|
if (modes != oldmodes)
|
|
{
|
|
int scalex = 320;
|
|
osd_fps_x = OSD_FPS_X;
|
|
if (!(modes & 4) && (PicoOpt & POPT_DIS_32C_BORDER)) {
|
|
scalex = 256;
|
|
osd_fps_x = OSD_FPS_X - 64;
|
|
}
|
|
/* want vertical scaling and game is not in 240 line mode */
|
|
if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(modes&8))
|
|
gp2x_video_RGB_setscaling(8, scalex, 224);
|
|
else gp2x_video_RGB_setscaling(0, scalex, 240);
|
|
oldmodes = modes;
|
|
clearArea(1);
|
|
}
|
|
|
|
// second changed?
|
|
if (thissec != tval.tv_sec)
|
|
{
|
|
#ifdef BENCHMARK
|
|
static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];
|
|
if (++bench == 10) {
|
|
bench = 0;
|
|
bench_fps_s = bench_fps;
|
|
bf[bfp++ & 3] = bench_fps;
|
|
bench_fps = 0;
|
|
}
|
|
bench_fps += frames_shown;
|
|
sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);
|
|
#else
|
|
if (currentConfig.EmuOpt & 2) {
|
|
sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);
|
|
if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }
|
|
}
|
|
#endif
|
|
frames_shown = frames_done = 0;
|
|
thissec = tval.tv_sec;
|
|
}
|
|
#ifdef PFRAMES
|
|
sprintf(fpsbuff, "%i", Pico.m.frame_count);
|
|
#endif
|
|
|
|
if (pthissec != tval.tv_sec)
|
|
{
|
|
if (PsndOut == 0 && currentConfig.Frameskip >= 0) {
|
|
pframes_done = pframes_shown = 0;
|
|
} else {
|
|
// it is quite common for this implementation to leave 1 fame unfinished
|
|
// when second changes, but we don't want buffer to starve.
|
|
if (PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
|
|
emu_update_input();
|
|
SkipFrame(1); pframes_done++;
|
|
}
|
|
|
|
pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
|
|
pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
|
|
if (pframes_shown > pframes_done) pframes_shown = pframes_done;
|
|
}
|
|
pthissec = tval.tv_sec;
|
|
}
|
|
|
|
lim_time = (pframes_done+1) * target_frametime + vsync_offset;
|
|
if (currentConfig.Frameskip >= 0) // frameskip enabled
|
|
{
|
|
for(i = 0; i < currentConfig.Frameskip; i++) {
|
|
emu_update_input();
|
|
SkipFrame(1); pframes_done++; frames_done++;
|
|
if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
|
|
gettimeofday(&tval, 0);
|
|
if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
if (tval.tv_usec < lim_time) { // we are too fast
|
|
simpleWait(pthissec, lim_time);
|
|
}
|
|
}
|
|
lim_time += target_frametime;
|
|
}
|
|
}
|
|
else if (tval.tv_usec > lim_time) // auto frameskip
|
|
{
|
|
// no time left for this frame - skip
|
|
if (tval.tv_usec - lim_time >= 300000) {
|
|
/* something caused a slowdown for us (disk access? cache flush?)
|
|
* try to recover by resetting timing... */
|
|
reset_timing = 1;
|
|
continue;
|
|
}
|
|
emu_update_input();
|
|
SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
|
|
continue;
|
|
}
|
|
|
|
emu_update_input();
|
|
PicoFrame();
|
|
|
|
// check time
|
|
gettimeofday(&tval, 0);
|
|
if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;
|
|
|
|
if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
|
|
reset_timing = 1;
|
|
else if (PsndOut != NULL || currentConfig.Frameskip < 0)
|
|
{
|
|
// sleep or vsync if we are still too fast
|
|
// usleep sleeps for ~20ms minimum, so it is not a solution here
|
|
if (!reset_timing && tval.tv_usec < lim_time)
|
|
{
|
|
// we are too fast
|
|
if (vsync_offset) {
|
|
if (lim_time - tval.tv_usec > target_frametime/2)
|
|
simpleWait(pthissec, lim_time - target_frametime/4);
|
|
gp2x_video_wait_vsync();
|
|
} else {
|
|
simpleWait(pthissec, lim_time);
|
|
}
|
|
}
|
|
}
|
|
|
|
blit(fpsbuff, notice);
|
|
|
|
pframes_done++; pframes_shown++;
|
|
frames_done++; frames_shown++;
|
|
}
|
|
|
|
emu_set_fastforward(0);
|
|
|
|
if (PicoAHW & PAHW_MCD)
|
|
PicoCDBufferFree();
|
|
|
|
// save SRAM
|
|
if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
|
|
plat_status_msg_busy_first("Writing SRAM/BRAM...");
|
|
emu_save_load_game(0, 1);
|
|
SRam.changed = 0;
|
|
}
|
|
|
|
// do menu background to be sure it's right
|
|
pemu_forced_frame(POPT_EN_SOFTSCALE);
|
|
}
|
|
|
|
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";
|
|
}
|