mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
pandora: tripplebuffer fbdev out, refactoring
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@845 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
b60b8745c0
commit
d08e732614
17 changed files with 404 additions and 171 deletions
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@ -4,24 +4,25 @@
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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 <unistd.h>
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#include "../common/emu.h"
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#include "../common/menu.h"
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#include "../common/plat.h"
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#include "../common/arm_utils.h"
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#include "../linux/sndout_oss.h"
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#include "../linux/fbdev.h"
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#include "asm_utils.h"
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#include "version.h"
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#include <pico/pico_int.h>
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#define USE_320_SCREEN 1
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//#define USE_320_SCREEN 1
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static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
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static unsigned char temp_frame[g_screen_width * g_screen_height * 2];
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unsigned char *PicoDraw2FB = temp_frame;
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static int osd_fps_x;
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char cpu_clk_name[] = "unused";
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@ -29,6 +30,8 @@ void pemu_prep_defconfig(void)
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{
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// XXX: move elsewhere
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g_menubg_ptr = temp_frame;
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defaultConfig.EmuOpt |= EOPT_VSYNC;
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}
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void pemu_validate_config(void)
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@ -141,15 +144,40 @@ static int EmuScanEnd16(unsigned int num)
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return 0;
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}
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static int EmuScanEnd16_32x(unsigned int num)
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{
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unsigned int *ps;
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unsigned int *pd;
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int len;
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ps = (unsigned int *)temp_frame;
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pd = (unsigned int *)g_screen_ptr + (num*800*2 + 800/2 - 320*2/2) / 2;
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for (len = 320/2; len > 0; len--, ps++) {
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unsigned int p, p1;
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p1 = *ps;
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p = p1 << 16;
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p |= p >> 16;
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*pd = pd[800/2] = p;
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pd++;
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p = p1 >> 16;
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p |= p << 16;
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*pd = pd[800/2] = p;
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pd++;
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}
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return 0;
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}
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#endif // USE_320_SCREEN
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void pemu_update_display(const char *fps, const char *notice)
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void pemu_finalize_frame(const char *fps, const char *notice)
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{
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if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {
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if (notice)
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osd_text(4, 460, notice);
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osd_text(4, 464, notice);
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if (currentConfig.EmuOpt & EOPT_SHOW_FPS)
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osd_text(osd_fps_x, 460, fps);
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osd_text(640, 464, fps);
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}
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if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))
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draw_cd_leds();
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@ -172,19 +200,24 @@ void plat_video_menu_begin(void)
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void plat_video_menu_end(void)
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{
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plat_video_flip();
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}
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void plat_status_msg_clear(void)
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{
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unsigned short *d = (unsigned short *)g_screen_ptr + g_screen_width * g_screen_height;
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int l = g_screen_width * 8;
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memset32((int *)(d - l), 0, l * 2 / 4);
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int s = g_screen_width * g_screen_height * 2;
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int l = g_screen_width * 16 * 2;
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int i;
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for (i = 0; i < fbdev_buffer_count; i++)
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memset32((int *)((char *)fbdev_buffers[i] + s - l), 0, l / 4);
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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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plat_status_msg_clear();
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pemu_update_display("", msg);
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pemu_finalize_frame("", msg);
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plat_video_flip();
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emu_status_msg("");
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reset_timing = 1;
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}
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@ -224,13 +257,6 @@ void pemu_forced_frame(int opts)
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PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites
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currentConfig.EmuOpt |= 0x80;
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#ifdef USE_320_SCREEN
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PicoDrawSetColorFormat(1);
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PicoScanBegin = EmuScanBegin16;
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#else
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PicoDrawSetColorFormat(-1);
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PicoScanEnd = EmuScanEnd16;
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#endif
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Pico.m.dirtyPal = 1;
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PicoFrameDrawOnly();
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@ -240,48 +266,59 @@ void pemu_forced_frame(int opts)
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static void updateSound(int len)
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{
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unsigned int t;
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len <<= 1;
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if (PicoOpt & POPT_EN_STEREO)
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len <<= 1;
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// sndout_oss_can_write() not reliable..
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if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))
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return;
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/* avoid writing audio when lagging behind to prevent audio lag */
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if (PicoSkipFrame != 2)
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sndout_oss_write(PsndOut, len);
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if (PicoSkipFrame == 2)
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return;
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t = plat_get_ticks_ms();
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sndout_oss_write(PsndOut, len);
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t = plat_get_ticks_ms() - t;
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if (t > 1)
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printf("audio lag %u\n", t);
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}
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void pemu_sound_start(void)
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{
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static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
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int target_fps = Pico.m.pal ? 50 : 60;
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PsndOut = NULL;
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if (currentConfig.EmuOpt & 4)
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if (currentConfig.EmuOpt & EOPT_EN_SOUND)
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{
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int snd_excess_add;
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if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)
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PsndRerate(Pico.m.frame_count ? 1 : 0);
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int snd_excess_add, frame_samples;
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int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
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PsndRerate(Pico.m.frame_count ? 1 : 0);
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frame_samples = PsndLen;
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snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;
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if (snd_excess_add != 0)
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frame_samples++;
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snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
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printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
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PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
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sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
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sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
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PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);
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sndout_oss_start(PsndRate, frame_samples * 2, is_stereo);
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//sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
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PicoWriteSound = updateSound;
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plat_update_volume(0, 0);
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memset(sndBuffer, 0, sizeof(sndBuffer));
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PsndOut = sndBuffer;
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PsndRate_old = PsndRate;
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PicoOpt_old = PicoOpt;
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pal_old = Pico.m.pal;
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}
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}
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void pemu_sound_stop(void)
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{
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sndout_oss_stop();
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}
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void pemu_sound_wait(void)
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@ -295,22 +332,32 @@ void plat_debug_cat(char *str)
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void emu_video_mode_change(int start_line, int line_count, int is_32cols)
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{
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osd_fps_x = 260;
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int i;
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// clear whole screen in all buffers
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memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);
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}
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for (i = 0; i < fbdev_buffer_count; i++)
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memset32(fbdev_buffers[i], 0, g_screen_width * g_screen_height * 2 / 4);
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void pemu_loop_prep(void)
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{
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#ifdef USE_320_SCREEN
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PicoDrawSetColorFormat(1);
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PicoScanBegin = EmuScanBegin16;
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#else
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PicoDrawSetColorFormat(-1);
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PicoScanEnd = EmuScanEnd16;
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if (PicoAHW & PAHW_32X) {
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DrawLineDest = (unsigned short *)temp_frame;
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PicoDrawSetColorFormat(1);
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PicoScanBegin = NULL;
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PicoScanEnd = EmuScanEnd16_32x;
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} else {
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PicoDrawSetColorFormat(-1);
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PicoScanBegin = NULL;
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PicoScanEnd = EmuScanEnd16;
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}
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#endif
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}
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void pemu_loop_prep(void)
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{
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emu_video_mode_change(0, 0, 0);
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pemu_sound_start();
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}
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@ -335,23 +382,27 @@ void pemu_loop_end(void)
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currentConfig.EmuOpt = eo_old;
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}
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/* XXX: avoid busy wait somehow? */
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void plat_wait_till_us(unsigned int us_to)
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{
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unsigned int now;
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signed int diff;
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spend_cycles(1024);
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now = plat_get_ticks_us();
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while ((signed int)(us_to - now) > 512)
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{
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// XXX: need to check NOHZ and djw kernel
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diff = (signed int)(us_to - now);
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if (diff > 10000) {
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//printf("sleep %d\n", us_to - now);
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usleep(diff * 15 / 16);
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now = plat_get_ticks_us();
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//printf(" wake %d\n", (signed)(us_to - now));
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}
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/*
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while ((signed int)(us_to - now) > 512) {
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spend_cycles(1024);
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now = plat_get_ticks_us();
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}
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}
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void plat_video_wait_vsync(void)
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{
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*/
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}
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const char *plat_get_credits(void)
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