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https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
Starting to copy some logic for emu from PSP
This commit is contained in:
Francisco Javier Trujillo Mata
kub
parent
e22b24b81a
commit
ebf2b007d1
2 changed files with 267 additions and 33 deletions
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@ -1,14 +1,26 @@
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#include <stddef.h>
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#include <kernel.h>
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#include <ps2_joystick_driver.h>
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#include <ps2_audio_driver.h>
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#include <libpad.h>
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#include "in_ps2.h"
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#include "../libpicofe/input.h"
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#include "../libpicofe/plat.h"
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#include "../common/input_pico.h"
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#include "../common/emu.h"
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#include <pico/pico_int.h>
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#define OSD_FPS_X 220
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static int osd_buf_cnt, osd_cdleds;
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static int out_x, out_y;
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static int out_w, out_h;
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static float hscale, vscale;
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static struct in_default_bind in_ps2_defbinds[] =
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{
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{ PAD_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },
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@ -26,6 +38,145 @@ static struct in_default_bind in_ps2_defbinds[] =
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{ 0, 0, 0 }
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};
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const char *renderer_names[] = { "16bit accurate", " 8bit accurate", " 8bit fast", NULL };
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const char *renderer_names32x[] = { "accurate", "faster", "fastest", NULL };
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enum renderer_types { RT_16BIT, RT_8BIT_ACC, RT_8BIT_FAST, RT_COUNT };
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#define is_16bit_mode() \
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(currentConfig.renderer == RT_16BIT || (PicoIn.AHW & PAHW_32X))
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static int get_renderer(void)
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{
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if (PicoIn.AHW & PAHW_32X)
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return currentConfig.renderer32x;
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else
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return currentConfig.renderer;
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}
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static void change_renderer(int diff)
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{
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int *r;
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if (PicoIn.AHW & PAHW_32X)
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r = ¤tConfig.renderer32x;
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else
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r = ¤tConfig.renderer;
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*r += diff;
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if (*r >= RT_COUNT)
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*r = 0;
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else if (*r < 0)
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*r = RT_COUNT - 1;
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}
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static void apply_renderer(void)
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{
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PicoIn.opt &= ~(POPT_ALT_RENDERER|POPT_EN_SOFTSCALE);
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PicoIn.opt |= POPT_DIS_32C_BORDER;
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switch (get_renderer()) {
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case RT_16BIT:
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PicoDrawSetOutFormat(PDF_RGB555, 0);
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break;
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case RT_8BIT_ACC:
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PicoDrawSetOutFormat(PDF_8BIT, 0);
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break;
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case RT_8BIT_FAST:
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PicoIn.opt |= POPT_ALT_RENDERER;
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PicoDrawSetOutFormat(PDF_NONE, 0);
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break;
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}
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}
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static void osd_text(int x, const char *text)
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{
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}
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static void blit_osd(void)
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{
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}
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static void cd_leds(void)
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{
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}
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static void blit_cdleds(void)
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{
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}
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void blitscreen_clut(void)
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{
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blit_osd();
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blit_cdleds();
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}
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static void draw_pico_ptr(void)
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{
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// unsigned char *p = (unsigned char *)g_screen_ptr + 8;
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// // only if pen enabled and for 8bit mode
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// if (pico_inp_mode == 0 || is_16bit_mode()) return;
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// p += 512 * (pico_pen_y + PICO_PEN_ADJUST_Y);
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// p += pico_pen_x + PICO_PEN_ADJUST_X;
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// if (!(Pico.video.reg[12]&1) && !(PicoIn.opt & POPT_DIS_32C_BORDER))
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// p += 32;
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// p[ -1] = 0xe0; p[ 0] = 0xf0; p[ 1] = 0xe0;
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// p[ 511] = 0xf0; p[ 512] = 0xf0; p[ 513] = 0xf0;
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// p[1023] = 0xe0; p[1024] = 0xf0; p[1025] = 0xe0;
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}
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static void vidResetMode(void) {}
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void pemu_sound_start(void) {}
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void pemu_sound_stop(void) {}
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/* set default configuration values */
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void pemu_prep_defconfig(void)
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{
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defaultConfig.s_PsndRate = 44100;
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defaultConfig.s_PicoCDBuffers = 64;
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defaultConfig.filter = EOPT_FILTER_BILINEAR; // bilinear filtering
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defaultConfig.scaling = EOPT_SCALE_43;
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defaultConfig.vscaling = EOPT_VSCALE_FULL;
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defaultConfig.renderer = RT_8BIT_ACC;
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defaultConfig.renderer32x = RT_8BIT_ACC;
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defaultConfig.EmuOpt |= EOPT_SHOW_RTC;
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}
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/* check configuration for inconsistencies */
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void pemu_validate_config(void)
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{
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if (currentConfig.gamma < -4 || currentConfig.gamma > 16)
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currentConfig.gamma = 0;
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if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2)
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currentConfig.gamma2 = 0;
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}
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/* finalize rendering a frame */
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void pemu_finalize_frame(const char *fps, const char *notice)
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{
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int emu_opt = currentConfig.EmuOpt;
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if (PicoIn.AHW & PAHW_PICO)
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draw_pico_ptr();
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osd_buf_cnt = 0;
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if (notice) osd_text(4, notice);
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if (emu_opt & 2) osd_text(OSD_FPS_X, fps);
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osd_cdleds = 0;
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if ((emu_opt & 0x400) && (PicoIn.AHW & PAHW_MCD))
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cd_leds();
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FlushCache(WRITEBACK_DCACHE);
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}
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void plat_init(void)
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{
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init_joystick_driver(false);
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@ -38,4 +189,118 @@ void plat_init(void)
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void plat_finish(void) {
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deinit_audio_driver();
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deinit_joystick_driver(false);
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}
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/* display emulator status messages before holding emulation */
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void plat_status_msg_busy_first(const char *msg)
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{
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plat_status_msg_busy_next(msg);
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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_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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/* clear status message area */
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void plat_status_msg_clear(void)
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{
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// not needed since the screen buf is cleared through the GU
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}
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/* change the audio volume setting */
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void plat_update_volume(int has_changed, int is_up)
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{
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}
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/* prepare for MD screen mode change */
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void emu_video_mode_change(int start_line, int line_count, int start_col, int col_count)
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{
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int h43 = (col_count >= 192 ? 320 : col_count); // ugh, mind GG...
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int v43 = (line_count >= 192 ? Pico.m.pal ? 240 : 224 : line_count);
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out_y = start_line; out_x = start_col;
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out_h = line_count; out_w = col_count;
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if (col_count == 248) // mind aspect ratio when blanking 1st column
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col_count = 256;
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switch (currentConfig.vscaling) {
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case EOPT_VSCALE_FULL:
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line_count = v43;
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vscale = (float)270/line_count;
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break;
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case EOPT_VSCALE_NOBORDER:
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vscale = (float)270/line_count;
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break;
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default:
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vscale = 1;
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break;
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}
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switch (currentConfig.scaling) {
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case EOPT_SCALE_43:
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hscale = (vscale*h43)/col_count;
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break;
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case EOPT_SCALE_STRETCH:
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hscale = (vscale*h43/2 + 480/2)/col_count;
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break;
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case EOPT_SCALE_WIDE:
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hscale = (float)480/col_count;
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break;
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default:
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hscale = vscale;
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break;
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}
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vidResetMode();
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}
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/* render one frame in RGB */
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void pemu_forced_frame(int no_scale, int do_emu)
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{
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Pico.m.dirtyPal = 1;
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if (!no_scale)
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no_scale = currentConfig.scaling == EOPT_SCALE_NONE;
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emu_cmn_forced_frame(no_scale, do_emu, g_screen_ptr);
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}
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/* change the platform output rendering */
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void plat_video_toggle_renderer(int change, int is_menu_call)
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{
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change_renderer(change);
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if (is_menu_call)
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return;
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apply_renderer();
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vidResetMode();
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rendstatus_old = -1;
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if (PicoIn.AHW & PAHW_32X)
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emu_status_msg(renderer_names32x[get_renderer()]);
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else
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emu_status_msg(renderer_names[get_renderer()]);
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}
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/* prepare for emulator output rendering */
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void plat_video_loop_prepare(void)
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{
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apply_renderer();
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vidResetMode();
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}
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/* prepare for entering the emulator loop */
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void pemu_loop_prep(void)
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{
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}
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/* terminate the emulator loop */
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void pemu_loop_end(void)
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{
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}
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