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- /*
- * PicoDrive
- * (C) notaz, 2006-2010
- *
- * This work is licensed under the terms of MAME license.
- * See COPYING file in the top-level directory.
- */
- #include <stdio.h>
- #include <unistd.h>
- #include "../libpicofe/menu.h"
- #include "../libpicofe/plat.h"
- #include "../common/emu.h"
- #include "../common/arm_utils.h"
- #include "../common/version.h"
- #include <pico/pico_int.h>
- const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };
- const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };
- enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };
- void pemu_prep_defconfig(void)
- {
- }
- void pemu_validate_config(void)
- {
- #if !defined(__arm__) && !defined(__i386__) && !defined(__x86_64__)
- PicoIn.opt &= ~POPT_EN_DRC;
- #endif
- }
- static void draw_cd_leds(void)
- {
- int led_reg, pitch, scr_offs, led_offs;
- led_reg = Pico_mcd->s68k_regs[0];
- pitch = 320;
- led_offs = 4;
- scr_offs = pitch * 2 + 4;
- if (currentConfig.renderer != RT_16BIT) {
- #define p(x) px[(x) >> 2]
- // 8-bit modes
- unsigned int *px = (unsigned int *)((char *)g_screen_ptr + scr_offs);
- unsigned int col_g = (led_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
- unsigned int col_r = (led_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
- p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
- p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
- #undef p
- } else {
- #define p(x) px[(x)*2 >> 2] = px[((x)*2 >> 2) + 1]
- // 16-bit modes
- unsigned int *px = (unsigned int *)((short *)g_screen_ptr + scr_offs);
- unsigned int col_g = (led_reg & 2) ? 0x06000600 : 0;
- unsigned int col_r = (led_reg & 1) ? 0xc000c000 : 0;
- p(pitch*0) = p(pitch*1) = p(pitch*2) = col_g;
- p(pitch*0 + led_offs) = p(pitch*1 + led_offs) = p(pitch*2 + led_offs) = col_r;
- #undef p
- }
- }
- void pemu_finalize_frame(const char *fps, const char *notice)
- {
- if (currentConfig.renderer != RT_16BIT && !(PicoIn.AHW & PAHW_32X)) {
- unsigned short *pd = (unsigned short *)g_screen_ptr + 8 * g_screen_width;
- unsigned char *ps = Pico.est.Draw2FB + 328*8 + 8;
- unsigned short *pal = Pico.est.HighPal;
- int i, x;
- if (Pico.m.dirtyPal)
- PicoDrawUpdateHighPal();
- for (i = 0; i < 224; i++, ps += 8)
- for (x = 0; x < 320; x++)
- *pd++ = pal[*ps++];
- }
- if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {
- if (notice)
- emu_osd_text16(4, g_screen_height - 8, notice);
- if (currentConfig.EmuOpt & EOPT_SHOW_FPS)
- emu_osd_text16(g_screen_width - 60, g_screen_height - 8, fps);
- }
- if ((PicoIn.AHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))
- draw_cd_leds();
- }
- static void apply_renderer(void)
- {
- switch (currentConfig.renderer) {
- case RT_16BIT:
- PicoIn.opt &= ~POPT_ALT_RENDERER;
- PicoDrawSetOutFormat(PDF_RGB555, 0);
- PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
- break;
- case RT_8BIT_ACC:
- PicoIn.opt &= ~POPT_ALT_RENDERER;
- PicoDrawSetOutFormat(PDF_8BIT, 0);
- PicoDrawSetOutBuf(Pico.est.Draw2FB + 8, 328);
- break;
- case RT_8BIT_FAST:
- PicoIn.opt |= POPT_ALT_RENDERER;
- PicoDrawSetOutFormat(PDF_NONE, 0);
- break;
- }
- if (PicoIn.AHW & PAHW_32X)
- PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
- }
- void plat_video_toggle_renderer(int change, int is_menu)
- {
- currentConfig.renderer += change;
- if (currentConfig.renderer >= RT_COUNT)
- currentConfig.renderer = 0;
- else if (currentConfig.renderer < 0)
- currentConfig.renderer = RT_COUNT - 1;
- if (!is_menu)
- apply_renderer();
- emu_status_msg(renderer_names[currentConfig.renderer]);
- }
- void plat_status_msg_clear(void)
- {
- unsigned short *d = (unsigned short *)g_screen_ptr + g_screen_width * g_screen_height;
- int l = g_screen_width * 8;
- memset32((int *)(d - l), 0, l * 2 / 4);
- }
- void plat_status_msg_busy_next(const char *msg)
- {
- plat_status_msg_clear();
- pemu_finalize_frame("", msg);
- plat_video_flip();
- emu_status_msg("");
- reset_timing = 1;
- }
- void plat_status_msg_busy_first(const char *msg)
- {
- // memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);
- plat_status_msg_busy_next(msg);
- }
- void plat_update_volume(int has_changed, int is_up)
- {
- }
- void pemu_forced_frame(int no_scale, int do_emu)
- {
- PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
- PicoDrawSetCallbacks(NULL, NULL);
- Pico.m.dirtyPal = 1;
- emu_cmn_forced_frame(no_scale, do_emu);
- g_menubg_src_ptr = g_screen_ptr;
- }
- void pemu_sound_start(void)
- {
- emu_sound_start();
- }
- void plat_debug_cat(char *str)
- {
- }
- void emu_video_mode_change(int start_line, int line_count, int is_32cols)
- {
- // clear whole screen in all buffers
- memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);
- }
- void pemu_loop_prep(void)
- {
- apply_renderer();
- }
- void pemu_loop_end(void)
- {
- /* do one more frame for menu bg */
- pemu_forced_frame(0, 1);
- }
- void plat_wait_till_us(unsigned int us_to)
- {
- unsigned int now;
- now = plat_get_ticks_us();
- while ((signed int)(us_to - now) > 512)
- {
- usleep(1024);
- now = plat_get_ticks_us();
- }
- }
- void *plat_mem_get_for_drc(size_t size)
- {
- return NULL;
- }
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