2 * (c) Copyright 2006-2010 notaz, All rights reserved.
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4 * For performance reasons 3 renderers are exported for both MD and 32x modes:
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5 * - 16bpp line renderer
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6 * - 8bpp line renderer (slightly faster)
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7 * - 8bpp tile renderer
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9 * - 32x layer is overlayed on top of 16bpp one
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10 * - line internal one done on PicoDraw2FB, then mixed with 32x
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11 * - tile internal one done on PicoDraw2FB, then mixed with 32x
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17 #include "plat_gp2x.h"
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19 #include "../common/plat.h"
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20 #include "../common/menu.h"
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21 #include "../common/arm_utils.h"
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22 #include "../common/fonts.h"
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23 #include "../common/emu.h"
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24 #include "../common/config.h"
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25 #include "../linux/sndout_oss.h"
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26 #include "version.h"
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28 #include <pico/pico_int.h>
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29 #include <pico/patch.h>
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30 #include <pico/sound/mix.h>
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31 #include <zlib/zlib.h>
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34 #define OSD_FPS_X 220
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36 #define OSD_FPS_X 260
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40 extern int crashed_940;
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42 static short __attribute__((aligned(4))) sndBuffer[2*(44100+100)/50];
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43 static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
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44 unsigned char *PicoDraw2FB = PicoDraw2FB_;
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45 static int osd_fps_x, osd_y;
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46 const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };
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47 const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };
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48 enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };
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50 extern void *gp2x_screens[4];
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53 static void scaling_update(void)
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55 PicoOpt &= ~(POPT_DIS_32C_BORDER|POPT_EN_SOFTSCALE);
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56 switch (currentConfig.scaling) {
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58 case EOPT_SCALE_HW_H:
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59 case EOPT_SCALE_HW_HV:
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60 PicoOpt |= POPT_DIS_32C_BORDER;
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62 case EOPT_SCALE_SW_H:
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63 PicoOpt |= POPT_EN_SOFTSCALE;
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69 void pemu_prep_defconfig(void)
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73 defaultConfig.CPUclock = default_cpu_clock;
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74 defaultConfig.renderer32x = RT_8BIT_FAST;
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77 if (soc == SOCID_MMSP2)
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78 defaultConfig.s_PicoOpt |= POPT_EXT_FM;
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79 else if (soc == SOCID_POLLUX)
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80 defaultConfig.EmuOpt |= EOPT_WIZ_TEAR_FIX|EOPT_SHOW_RTC;
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83 void pemu_validate_config(void)
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88 if (soc != SOCID_MMSP2)
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89 PicoOpt &= ~POPT_EXT_FM;
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90 if (soc != SOCID_POLLUX)
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91 currentConfig.EmuOpt &= ~EOPT_WIZ_TEAR_FIX;
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93 if (currentConfig.gamma < 10 || currentConfig.gamma > 300)
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94 currentConfig.gamma = 100;
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96 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 1024)
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97 currentConfig.CPUclock = default_cpu_clock;
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100 static int get_renderer(void)
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102 if (PicoAHW & PAHW_32X)
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103 return currentConfig.renderer32x;
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105 return currentConfig.renderer;
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108 static void change_renderer(int diff)
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111 if (PicoAHW & PAHW_32X)
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112 r = ¤tConfig.renderer32x;
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114 r = ¤tConfig.renderer;
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116 if (*r >= RT_COUNT)
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122 #define is_16bit_mode() \
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123 (get_renderer() == RT_16BIT || (PicoAHW & PAHW_32X))
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125 static void (*osd_text)(int x, int y, const char *text);
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127 static void osd_text8(int x, int y, const char *text)
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129 int len = strlen(text)*8;
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130 int *p, i, h, offs;
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132 len = (len+3) >> 2;
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133 for (h = 0; h < 8; h++) {
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134 offs = (x + g_screen_width * (y+h)) & ~3;
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135 p = (int *) ((char *)g_screen_ptr + offs);
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136 for (i = len; i; i--, p++)
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139 emu_text_out8(x, y, text);
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142 static void osd_text16(int x, int y, const char *text)
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144 int len = strlen(text)*8;
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145 int *p, i, h, offs;
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147 len = (len+1) >> 1;
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148 for (h = 0; h < 8; h++) {
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149 offs = (x + g_screen_width * (y+h)) & ~1;
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150 p = (int *) ((short *)g_screen_ptr + offs);
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151 for (i = len; i; i--, p++)
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152 *p = (*p >> 2) & 0x39e7;
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154 emu_text_out16(x, y, text);
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157 static void osd_text8_rot(int x, int y, const char *text)
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159 int len = strlen(text) * 8;
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160 char *p = (char *)g_screen_ptr + 240*(320-x) + y;
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163 memset(p, 0xe0, 8);
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167 emu_text_out8_rot(x, y, text);
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170 static void osd_text16_rot(int x, int y, const char *text)
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172 int len = strlen(text) * 8;
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173 short *p = (short *)g_screen_ptr + 240*(320-x) + y;
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180 emu_text_out16_rot(x, y, text);
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183 static void draw_cd_leds(void)
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185 int led_reg, pitch, scr_offs, led_offs;
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186 led_reg = Pico_mcd->s68k_regs[0];
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188 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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190 led_offs = -pitch * 6;
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191 scr_offs = pitch * (320 - 4);
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195 scr_offs = pitch * 2 + 4;
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198 if (!is_16bit_mode()) {
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199 #define p(x) px[(x) >> 2]
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201 unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);
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202 unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
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203 unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
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204 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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205 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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208 #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]
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210 unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);
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211 unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;
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212 unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;
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213 p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
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214 p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
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219 static void draw_pico_ptr(void)
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221 unsigned short *p = (unsigned short *)g_screen_ptr;
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222 int x, y, pitch = 320;
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224 // only if pen enabled and for 16bit modes
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225 if (pico_inp_mode == 0 || currentConfig.EmuOpt != RT_16BIT)
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228 x = pico_pen_x + PICO_PEN_ADJUST_X;
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229 y = pico_pen_y + PICO_PEN_ADJUST_Y;
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230 if (!(Pico.video.reg[12]&1) && !(PicoOpt & POPT_DIS_32C_BORDER))
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233 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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235 p += (319 - x) * pitch + y;
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237 p += x + y * pitch;
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240 p[pitch-1] ^= 0xffff;
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241 p[pitch] ^= 0xffff;
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242 p[pitch+1] ^= 0xffff;
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243 p[pitch*2] ^= 0xffff;
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246 /* rot thing for Wiz */
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247 static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];
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249 static int EmuScanBegin16_rot(unsigned int num)
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251 DrawLineDest = rot_buff + (num & 3) * 320 * 2;
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255 static int EmuScanEnd16_rot(unsigned int num)
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257 if ((num & 3) != 3)
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259 rotated_blit16(g_screen_ptr, rot_buff, num + 1,
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260 !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE));
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264 static int EmuScanBegin8_rot(unsigned int num)
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266 DrawLineDest = rot_buff + (num & 3) * 320;
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270 static int EmuScanEnd8_rot(unsigned int num)
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272 if ((num & 3) != 3)
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274 rotated_blit8(g_screen_ptr, rot_buff, num + 1,
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275 !(Pico.video.reg[12] & 1));
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279 static int localPal[0x100];
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280 static void (*vidcpyM2)(void *dest, void *src, int m32col, int with_32c_border);
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281 static int (*make_local_pal)(int fast_mode);
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283 static int make_local_pal_md(int fast_mode)
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287 bgr444_to_rgb32(localPal, Pico.cram);
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291 if (Pico.video.reg[0xC] & 8) { // shadow/hilight mode
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292 bgr444_to_rgb32_sh(localPal, Pico.cram);
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293 localPal[0xc0] = 0x0000c000;
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294 localPal[0xd0] = 0x00c00000;
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295 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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296 localPal[0xf0] = 0x00ffffff;
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299 else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
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300 bgr444_to_rgb32(localPal+0x40, HighPal);
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301 bgr444_to_rgb32(localPal+0x80, HighPal+0x40);
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304 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess
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309 static int make_local_pal_sms(int fast_mode)
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311 unsigned short *spal = Pico.cram;
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312 unsigned int *dpal = (void *)localPal;
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315 for (i = 0x40; i > 0; i--) {
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317 t = ((t & 0x0003) << 22) | ((t & 0x000c) << 12) | ((t & 0x0030) << 2);
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326 void pemu_finalize_frame(const char *fps, const char *notice)
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328 int emu_opt = currentConfig.EmuOpt;
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331 if (PicoAHW & PAHW_32X)
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333 else if (get_renderer() == RT_8BIT_FAST)
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335 // 8bit fast renderer
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336 if (Pico.m.dirtyPal) {
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337 Pico.m.dirtyPal = 0;
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338 ret = make_local_pal(1);
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339 // feed new palette to our device
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340 gp2x_video_setpalette(localPal, ret);
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343 if (PicoAHW & PAHW_SVP)
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344 memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
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346 vidcpyM2(g_screen_ptr, PicoDraw2FB+328*8,
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347 !(Pico.video.reg[12] & 1), !(PicoOpt & POPT_DIS_32C_BORDER));
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349 else if (get_renderer() == RT_8BIT_ACC)
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351 // 8bit accurate renderer
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352 if (Pico.m.dirtyPal)
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354 Pico.m.dirtyPal = 0;
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355 ret = make_local_pal(0);
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356 gp2x_video_setpalette(localPal, ret);
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360 if (notice || (emu_opt & EOPT_SHOW_FPS)) {
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362 osd_text(4, osd_y, notice);
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364 osd_text(osd_fps_x, osd_y, fps);
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366 if ((PicoAHW & PAHW_MCD) && (emu_opt & EOPT_EN_CD_LEDS))
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368 if (PicoAHW & PAHW_PICO)
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372 void plat_video_flip(void)
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374 int stride = g_screen_width;
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377 if (is_16bit_mode())
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379 PicoDrawSetOutBuf(g_screen_ptr, stride);
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384 unsigned int plat_get_ticks_ms(void)
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386 return gp2x_get_ticks_ms();
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389 unsigned int plat_get_ticks_us(void)
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391 return gp2x_get_ticks_us();
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395 void plat_wait_till_us(unsigned int us_to)
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399 spend_cycles(1024);
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400 now = plat_get_ticks_us();
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402 while ((signed int)(us_to - now) > 512)
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404 spend_cycles(1024);
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405 now = plat_get_ticks_us();
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409 void plat_video_wait_vsync(void)
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411 gp2x_video_wait_vsync();
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414 void plat_status_msg_clear(void)
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416 int is_8bit = !is_16bit_mode();
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417 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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421 for (i = 0; i < 4; i++) {
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422 p = (int *)gp2x_screens[i] + (240-8) / 4;
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423 for (u = 320; u > 0; u--, p += 240/4)
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424 p[0] = p[1] = 0xe0e0e0e0;
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427 for (i = 0; i < 4; i++) {
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428 p = (int *)gp2x_screens[i] + (240-8)*2 / 4;
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429 for (u = 320; u > 0; u--, p += 240*2/4)
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430 p[0] = p[1] = p[2] = p[3] = 0;
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437 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
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439 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
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442 void plat_status_msg_busy_next(const char *msg)
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444 plat_status_msg_clear();
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445 pemu_finalize_frame("", msg);
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447 emu_status_msg("");
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449 /* assumption: msg_busy_next gets called only when
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450 * something slow is about to happen */
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454 void plat_status_msg_busy_first(const char *msg)
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456 gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
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457 plat_status_msg_busy_next(msg);
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460 static void vidResetMode(void)
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462 int gp2x_mode = 16;
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463 int renderer = get_renderer();
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465 PicoScanBegin = NULL;
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466 PicoScanEnd = NULL;
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468 switch (renderer) {
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470 PicoOpt &= ~POPT_ALT_RENDERER;
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471 PicoDrawSetOutFormat(PDF_RGB555, 0);
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472 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
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473 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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474 PicoScanBegin = EmuScanBegin16_rot;
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475 PicoScanEnd = EmuScanEnd16_rot;
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479 PicoOpt &= ~POPT_ALT_RENDERER;
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480 PicoDrawSetOutFormat(PDF_8BIT, 0);
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481 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width);
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482 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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483 PicoScanBegin = EmuScanBegin8_rot;
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484 PicoScanEnd = EmuScanEnd8_rot;
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489 PicoOpt |= POPT_ALT_RENDERER;
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490 PicoDrawSetOutFormat(PDF_NONE, 0);
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491 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)
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492 vidcpyM2 = vidcpy_m2_rot;
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494 vidcpyM2 = vidcpy_m2;
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499 if (is_16bit_mode())
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500 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text16_rot : osd_text16;
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502 osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text8_rot : osd_text8;
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504 if (PicoAHW & PAHW_32X) {
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505 // rules change in 32X world
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506 if (renderer != RT_16BIT) {
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507 PicoDrawSetOutFormat(PDF_NONE, 0);
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508 PicoScanBegin = NULL;
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509 PicoScanEnd = NULL;
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511 PicoScan32xBegin = NULL;
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512 PicoScan32xEnd = NULL;
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513 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
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514 PicoScan32xBegin = EmuScanBegin16_rot;
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515 PicoScan32xEnd = EmuScanEnd16_rot;
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517 // Wiz 16bit is an exception, uses line rendering due to rotation mess
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518 if (renderer == RT_16BIT && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {
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519 PicoDrawSetOutFormat(PDF_RGB555, 1);
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520 PicoDraw32xSetFrameMode(0, 0);
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523 PicoDraw32xSetFrameMode(1, (renderer == RT_16BIT) ? 1 : 0);
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525 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
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529 if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)
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530 gp2x_mode = -gp2x_mode;
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531 gp2x_video_changemode(gp2x_mode);
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533 if (!is_16bit_mode()) {
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534 // setup pal for 8-bit modes
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535 localPal[0xc0] = 0x0000c000; // MCD LEDs
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536 localPal[0xd0] = 0x00c00000;
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537 localPal[0xe0] = 0x00000000; // reserved pixels for OSD
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538 localPal[0xf0] = 0x00ffffff;
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539 gp2x_video_setpalette(localPal, 0x100);
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540 gp2x_memset_all_buffers(0, 0xe0, 320*240);
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543 Pico.m.dirtyPal = 1;
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546 if (currentConfig.scaling == EOPT_SCALE_HW_HV && !(Pico.video.reg[1]&8))
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547 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
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548 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
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550 // palette converters for 8bit modes
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551 make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;
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554 void plat_video_toggle_renderer(int change, int is_menu_call)
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556 change_renderer(change);
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562 rendstatus_old = -1;
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564 if (PicoAHW & PAHW_32X)
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565 emu_status_msg(renderer_names32x[get_renderer()]);
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567 emu_status_msg(renderer_names[get_renderer()]);
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571 static void RunEventsPico(unsigned int events)
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573 int ret, px, py, lim_x;
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574 static int pdown_frames = 0;
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577 ret = gp2x_touchpad_read(&px, &py);
\r
582 if (pdown_frames++ > 5)
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583 PicoPad[0] |= 0x20;
\r
587 if (!(Pico.video.reg[12]&1)) {
\r
589 if (pico_pen_x < 0) pico_pen_x = 0;
\r
590 if (pico_pen_x > 248) pico_pen_x = 248;
\r
592 if (pico_pen_y > 224) pico_pen_y = 224;
\r
598 // PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
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603 void plat_update_volume(int has_changed, int is_up)
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605 static int prev_frame = 0, wait_frames = 0;
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606 int vol = currentConfig.volume;
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607 int need_low_volume = 0;
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610 soc = soc_detect();
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611 if ((PicoOpt & POPT_EN_STEREO) && soc == SOCID_MMSP2)
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612 need_low_volume = 1;
\r
616 if (need_low_volume && vol < 5 && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)
\r
620 if (vol < 99) vol++;
\r
622 if (vol > 0) vol--;
\r
625 sndout_oss_setvol(vol, vol);
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626 currentConfig.volume = vol;
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628 emu_status_msg("VOL: %02i", vol);
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629 prev_frame = Pico.m.frame_count;
\r
632 if (!need_low_volume)
\r
635 /* set the right mixer func */
\r
637 PsndMix_32_to_16l = mix_32_to_16l_stereo;
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639 mix_32_to_16l_level = 5 - vol;
\r
640 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;
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644 static void updateSound(int len)
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647 if (PicoOpt & POPT_EN_STEREO)
\r
650 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
\r
653 /* avoid writing audio when lagging behind to prevent audio lag */
\r
654 if (PicoSkipFrame != 2)
\r
655 sndout_oss_write(PsndOut, len);
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658 void pemu_sound_start(void)
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660 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
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664 // prepare sound stuff
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665 if (currentConfig.EmuOpt & EOPT_EN_SOUND)
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667 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
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668 int target_fps = Pico.m.pal ? 50 : 60;
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669 int frame_samples, snd_excess_add;
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670 int snd_rate_oss = PsndRate;
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673 soc = soc_detect();
\r
674 if (soc == SOCID_POLLUX) {
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675 /* POLLUX pain: DPLL1 / mclk_div / bitclk_div / 4 */
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676 switch (PsndRate) {
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677 case 44100: PsndRate = 44171; break; // 44170.673077
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678 case 22050: PsndRate = 22086; break; // 22085.336538
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679 case 11025: PsndRate = 11043; break; // 11042.668269
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684 #define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)
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685 if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||
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686 ((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {
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687 PsndRerate(Pico.m.frame_count ? 1 : 0);
\r
690 memset(sndBuffer, 0, sizeof(sndBuffer));
\r
691 PsndOut = sndBuffer;
\r
692 PicoWriteSound = updateSound;
\r
693 PsndRate_old = PsndRate;
\r
694 PicoOpt_old = PicoOpt;
\r
695 pal_old = Pico.m.pal;
\r
696 plat_update_volume(0, 0);
\r
698 frame_samples = PsndLen;
\r
699 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;
\r
700 if (snd_excess_add != 0)
\r
702 if (soc == SOCID_POLLUX)
\r
703 frame_samples *= 2; /* force larger buffer */
\r
705 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
\r
706 PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);
\r
707 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
\r
708 sndout_oss_start(snd_rate_oss, frame_samples, is_stereo);
\r
710 /* Wiz's sound hardware needs more prebuffer */
\r
711 if (soc == SOCID_POLLUX)
\r
712 updateSound(frame_samples);
\r
716 void pemu_sound_stop(void)
\r
718 /* get back from Wiz pain */
\r
719 switch (PsndRate) {
\r
720 case 44171: PsndRate = 44100; break;
\r
721 case 22086: PsndRate = 22050; break;
\r
722 case 11043: PsndRate = 11025; break;
\r
727 void pemu_sound_wait(void)
\r
729 // don't need to do anything, writes will block by themselves
\r
733 void pemu_forced_frame(int opts)
\r
735 int po_old = PicoOpt;
\r
737 PicoOpt &= ~POPT_ALT_RENDERER;
\r
738 PicoOpt |= opts|POPT_ACC_SPRITES;
\r
740 PicoDrawSetOutFormat(PDF_RGB555, 1);
\r
741 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
\r
742 PicoDraw32xSetFrameMode(0, 0);
\r
743 PicoScanBegin = NULL;
\r
744 PicoScanEnd = NULL;
\r
745 Pico.m.dirtyPal = 1;
\r
746 PicoFrameDrawOnly();
\r
751 void plat_debug_cat(char *str)
\r
755 void emu_video_mode_change(int start_line, int line_count, int is_32cols)
\r
758 osd_fps_x = OSD_FPS_X;
\r
760 if (is_32cols && (PicoOpt & POPT_DIS_32C_BORDER)) {
\r
762 osd_fps_x = OSD_FPS_X - 64;
\r
765 /* want vertical scaling and game is not in 240 line mode */
\r
766 if (currentConfig.scaling == EOPT_SCALE_HW_HV) {
\r
767 gp2x_video_RGB_setscaling(start_line, scalex, line_count);
\r
768 osd_y = start_line + line_count - 8;
\r
770 gp2x_video_RGB_setscaling(0, scalex, 240);
\r
772 // clear whole screen in all buffers
\r
773 if (!is_16bit_mode())
\r
774 gp2x_memset_all_buffers(0, 0xe0, 320*240);
\r
776 gp2x_memset_all_buffers(0, 0, 320*240*2);
\r
780 static void tga_dump(void)
\r
782 #define BYTE unsigned char
\r
783 #define WORD unsigned short
\r
786 BYTE IDLength; /* 00h Size of Image ID field */
\r
787 BYTE ColorMapType; /* 01h Color map type */
\r
788 BYTE ImageType; /* 02h Image type code */
\r
789 WORD CMapStart; /* 03h Color map origin */
\r
790 WORD CMapLength; /* 05h Color map length */
\r
791 BYTE CMapDepth; /* 07h Depth of color map entries */
\r
792 WORD XOffset; /* 08h X origin of image */
\r
793 WORD YOffset; /* 0Ah Y origin of image */
\r
794 WORD Width; /* 0Ch Width of image */
\r
795 WORD Height; /* 0Eh Height of image */
\r
796 BYTE PixelDepth; /* 10h Image pixel size */
\r
797 BYTE ImageDescriptor; /* 11h Image descriptor byte */
\r
798 } __attribute__((packed)) TGAHEAD;
\r
799 static unsigned short oldscr[320*240];
\r
800 FILE *f; char name[128]; int i;
\r
802 memset(&TGAHEAD, 0, sizeof(TGAHEAD));
\r
803 TGAHEAD.ImageType = 2;
\r
804 TGAHEAD.Width = 320;
\r
805 TGAHEAD.Height = 240;
\r
806 TGAHEAD.PixelDepth = 16;
\r
807 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left
\r
809 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
\r
811 for (i = 0; i < 320*240; i++)
\r
812 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
\r
815 for (i = 0; i < 320*240; i++)
\r
816 oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
\r
817 sprintf(name, "%05i.tga", Pico.m.frame_count);
\r
818 f = fopen(name, "wb");
\r
819 if (!f) { printf("!f\n"); exit(1); }
\r
820 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);
\r
821 fwrite(oldscr, 1, 320*240*2, f);
\r
827 void pemu_loop_prep(void)
\r
829 static int gp2x_old_clock = -1, EmuOpt_old = 0, pal_old = 0;
\r
830 static int gp2x_old_gamma = 100;
\r
833 soc = soc_detect();
\r
835 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {
\r
836 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)
\r
839 unset_ram_timings();
\r
842 if (gp2x_old_clock < 0)
\r
843 gp2x_old_clock = default_cpu_clock;
\r
844 if (gp2x_old_clock != currentConfig.CPUclock) {
\r
845 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);
\r
846 gp2x_set_cpuclk(currentConfig.CPUclock);
\r
847 gp2x_old_clock = currentConfig.CPUclock;
\r
851 if (gp2x_old_gamma != currentConfig.gamma || ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_A_SN_GAMMA)) {
\r
852 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt & EOPT_A_SN_GAMMA));
\r
853 gp2x_old_gamma = currentConfig.gamma;
\r
854 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));
\r
857 if (((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_VSYNC) || Pico.m.pal != pal_old) {
\r
858 if ((currentConfig.EmuOpt & EOPT_VSYNC) || soc == SOCID_POLLUX)
\r
859 set_lcd_custom_rate(Pico.m.pal);
\r
860 else if (EmuOpt_old & EOPT_VSYNC)
\r
861 unset_lcd_custom_rate();
\r
864 if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)
\r
865 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);
\r
867 EmuOpt_old = currentConfig.EmuOpt;
\r
868 pal_old = Pico.m.pal;
\r
870 // make sure we are in correct mode
\r
874 pemu_sound_start();
\r
877 void pemu_loop_end(void)
\r
879 int po_old = PicoOpt;
\r
880 int eo_old = currentConfig.EmuOpt;
\r
883 memset32(g_screen_ptr, 0, 320*240*2/4);
\r
885 /* do one more frame for menu bg */
\r
886 PicoOpt &= ~POPT_ALT_RENDERER;
\r
887 PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;
\r
889 PicoDrawSetOutFormat(PDF_RGB555, 1);
\r
890 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
\r
891 PicoDraw32xSetFrameMode(0, 0);
\r
892 PicoScanBegin = NULL;
\r
893 PicoScanEnd = NULL;
\r
894 Pico.m.dirtyPal = 1;
\r
898 currentConfig.EmuOpt = eo_old;
\r
901 const char *plat_get_credits(void)
\r
903 return "PicoDrive v" VERSION " (c) notaz, 2006-2010\n\n\n"
\r
905 "fDave: Cyclone 68000 core,\n"
\r
906 " base code of PicoDrive\n"
\r
907 "Reesy & FluBBa: DrZ80 core\n"
\r
908 "MAME devs: YM2612 and SN76496 cores\n"
\r
909 "rlyeh and others: minimal SDK\n"
\r
910 "Squidge: mmuhack\n"
\r
911 "Dzz: ARM940 sample\n"
\r
912 "GnoStiC / Puck2099: USB joy code\n"
\r
913 "craigix: GP2X hardware\n"
\r
914 "ketchupgun: skin design\n"
\r
916 "special thanks (for docs, ideas):\n"
\r
917 " Charles MacDonald, Haze,\n"
\r
918 " Stephane Dallongeville,\n"
\r
919 " Lordus, Exophase, Rokas,\n"
\r
920 " Nemesis, Tasco Deluxe";
\r