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- /* faking/emulating gp2x by using xlib */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <stdarg.h>
- #include <pthread.h>
- #include <semaphore.h>
- #include <unistd.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <errno.h>
- #include "../gp2x/version.h"
- #include "../common/emu.h"
- #include "../common/menu.h"
- #include "../common/readpng.h"
- #include "sndout_oss.h"
- #include "log_io.h"
- unsigned long current_keys = 0;
- static int current_bpp = 8;
- static int current_pal[256];
- static const char *verstring = "PicoDrive " VERSION;
- static int scr_changed = 0, scr_w = SCREEN_WIDTH, scr_h = SCREEN_HEIGHT;
- void *gp2x_screens[4];
- // dummies
- int mix_32_to_16l_level;
- int crashed_940 = 0;
- int default_cpu_clock = 123;
- void *gp2x_memregs = NULL;
- /* faking GP2X pad */
- enum { GP2X_UP=0x1, GP2X_LEFT=0x4, GP2X_DOWN=0x10, GP2X_RIGHT=0x40,
- GP2X_START=1<<8, GP2X_SELECT=1<<9, GP2X_L=1<<10, GP2X_R=1<<11,
- GP2X_A=1<<12, GP2X_B=1<<13, GP2X_X=1<<14, GP2X_Y=1<<15,
- GP2X_VOL_UP=1<<23, GP2X_VOL_DOWN=1<<22, GP2X_PUSH=1<<27 };
- static void key_press_event(int keycode)
- {
- switch (keycode)
- {
- case 111:
- case 0x62: current_keys |= GP2X_UP; break;
- case 116:
- case 0x68: current_keys |= GP2X_DOWN; break;
- case 113:
- case 0x64: current_keys |= GP2X_LEFT; break;
- case 114:
- case 0x66: current_keys |= GP2X_RIGHT; break;
- case 0x24: current_keys |= GP2X_START; break; // enter
- case 0x23: current_keys |= GP2X_SELECT;break; // ]
- case 0x34: current_keys |= GP2X_A; break; // z
- case 0x35: current_keys |= GP2X_X; break; // x
- case 0x36: current_keys |= GP2X_B; break; // c
- case 0x37: current_keys |= GP2X_Y; break; // v
- case 0x27: current_keys |= GP2X_L; break; // s
- case 0x28: current_keys |= GP2X_R; break; // d
- case 0x29: current_keys |= GP2X_PUSH; break; // f
- case 0x18: current_keys |= GP2X_VOL_DOWN;break; // q
- case 0x19: current_keys |= GP2X_VOL_UP;break; // w
- case 0x2d: log_io_clear(); break; // k
- case 0x2e: log_io_dump(); break; // l
- case 0x17: { // tab
- extern int PicoReset(void);
- PicoReset();
- break;
- }
- }
- }
- static void key_release_event(int keycode)
- {
- switch (keycode)
- {
- case 111:
- case 0x62: current_keys &= ~GP2X_UP; break;
- case 116:
- case 0x68: current_keys &= ~GP2X_DOWN; break;
- case 113:
- case 0x64: current_keys &= ~GP2X_LEFT; break;
- case 114:
- case 0x66: current_keys &= ~GP2X_RIGHT; break;
- case 0x24: current_keys &= ~GP2X_START; break; // enter
- case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
- case 0x34: current_keys &= ~GP2X_A; break; // z
- case 0x35: current_keys &= ~GP2X_X; break; // x
- case 0x36: current_keys &= ~GP2X_B; break; // c
- case 0x37: current_keys &= ~GP2X_Y; break; // v
- case 0x27: current_keys &= ~GP2X_L; break; // s
- case 0x28: current_keys &= ~GP2X_R; break; // d
- case 0x29: current_keys &= ~GP2X_PUSH; break; // f
- case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
- case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
- }
- }
- /* --- */
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- static Display *xlib_display;
- static Window xlib_window;
- static XImage *ximage;
- static void ximage_realloc(Display *display, Visual *visual)
- {
- void *xlib_screen;
- XLockDisplay(xlib_display);
- if (ximage != NULL)
- XDestroyImage(ximage);
- ximage = NULL;
- xlib_screen = calloc(scr_w * scr_h, 4);
- if (xlib_screen != NULL)
- ximage = XCreateImage(display, visual, 24, ZPixmap, 0,
- xlib_screen, scr_w, scr_h, 32, 0);
- if (ximage == NULL)
- fprintf(stderr, "failed to alloc ximage\n");
- XUnlockDisplay(xlib_display);
- }
- static void xlib_update(void)
- {
- Status xstatus;
- XLockDisplay(xlib_display);
- xstatus = XPutImage(xlib_display, xlib_window, DefaultGC(xlib_display, 0), ximage,
- 0, 0, 0, 0, g_screen_width, g_screen_height);
- if (xstatus != 0)
- fprintf(stderr, "XPutImage %d\n", xstatus);
- XUnlockDisplay(xlib_display);
- }
- static void *xlib_threadf(void *targ)
- {
- unsigned int width, height, display_width, display_height;
- sem_t *sem = targ;
- XTextProperty windowName;
- Window win;
- XEvent report;
- Display *display;
- Visual *visual;
- int screen;
- XInitThreads();
- xlib_display = display = XOpenDisplay(NULL);
- if (display == NULL)
- {
- fprintf(stderr, "cannot connect to X server %s\n",
- XDisplayName(NULL));
- sem_post(sem);
- return NULL;
- }
- visual = DefaultVisual(display, 0);
- if (visual->class != TrueColor)
- {
- fprintf(stderr, "cannot handle non true color visual\n");
- XCloseDisplay(display);
- sem_post(sem);
- return NULL;
- }
- printf("X vendor: %s, rel: %d, display: %s, protocol ver: %d.%d\n", ServerVendor(display),
- VendorRelease(display), DisplayString(display), ProtocolVersion(display),
- ProtocolRevision(display));
- screen = DefaultScreen(display);
- ximage_realloc(display, visual);
- sem_post(sem);
- display_width = DisplayWidth(display, screen);
- display_height = DisplayHeight(display, screen);
- xlib_window = win = XCreateSimpleWindow(display,
- RootWindow(display, screen),
- display_width / 2 - scr_w / 2,
- display_height / 2 - scr_h / 2,
- scr_w + 2, scr_h + 2, 1,
- BlackPixel(display, screen),
- BlackPixel(display, screen));
- XStringListToTextProperty((char **)&verstring, 1, &windowName);
- XSetWMName(display, win, &windowName);
- XSelectInput(display, win, ExposureMask |
- KeyPressMask | KeyReleaseMask |
- StructureNotifyMask);
- XMapWindow(display, win);
- while (1)
- {
- XNextEvent(display, &report);
- switch (report.type)
- {
- case Expose:
- while (XCheckTypedEvent(display, Expose, &report))
- ;
- xlib_update();
- break;
- case ConfigureNotify:
- width = report.xconfigure.width;
- height = report.xconfigure.height;
- if (scr_w != width - 2 || scr_h != height - 2) {
- scr_w = width - 2;
- scr_h = height - 2;
- scr_changed = 1;
- }
- break;
- case ButtonPress:
- break;
- case KeyPress:
- key_press_event(report.xkey.keycode);
- break;
- case KeyRelease:
- key_release_event(report.xkey.keycode);
- break;
- default:
- break;
- }
- }
- }
- static void xlib_init(void)
- {
- pthread_t x_thread;
- sem_t xlib_sem;
- sem_init(&xlib_sem, 0, 0);
- pthread_create(&x_thread, NULL, xlib_threadf, &xlib_sem);
- pthread_detach(x_thread);
- sem_wait(&xlib_sem);
- sem_destroy(&xlib_sem);
- }
- /* --- */
- static void realloc_screen(void)
- {
- void *old = g_screen_ptr;
- int i;
- g_screen_width = scr_w;
- g_screen_height = scr_h;
- g_screen_ptr = calloc(g_screen_width * g_screen_height * 2, 1);
- free(old);
- scr_changed = 0;
- for (i = 0; i < 4; i++)
- gp2x_screens[i] = g_screen_ptr;
- }
- /* gp2x/emu.c stuff, most to be rm'd */
- static void gp2x_video_flip_(void)
- {
- unsigned int *image;
- int pixel_count, i;
- if (ximage == NULL)
- return;
- pixel_count = g_screen_width * g_screen_height;
- image = (void *)ximage->data;
- if (current_bpp == 8)
- {
- unsigned char *pixels = g_screen_ptr;
- int pix;
- for (i = 0; i < pixel_count; i++)
- {
- pix = current_pal[pixels[i]];
- image[i] = pix;
- }
- }
- else
- {
- unsigned short *pixels = g_screen_ptr;
- for (i = 0; i < pixel_count; i++)
- {
- /* in: rrrr rggg gggb bbbb */
- /* out: rrrr r000 gggg gg00 bbbb b000 */
- image[i] = (pixels[i] << 8) & 0xf80000;
- image[i] |= (pixels[i] << 5) & 0x00fc00;
- image[i] |= (pixels[i] << 3) & 0x0000f8;
- }
- }
- xlib_update();
- if (scr_changed) {
- realloc_screen();
- ximage_realloc(xlib_display, DefaultVisual(xlib_display, 0));
- }
- }
- static void gp2x_video_changemode_ll_(int bpp)
- {
- current_bpp = bpp;
- }
- static void gp2x_video_setpalette_(int *pal, int len)
- {
- memcpy(current_pal, pal, len*4);
- }
- void gp2x_memcpy_all_buffers(void *data, int offset, int len)
- {
- }
- void gp2x_memset_all_buffers(int offset, int byte, int len)
- {
- memset((char *)g_screen_ptr + offset, byte, len);
- }
- void gp2x_video_changemode(int bpp)
- {
- gp2x_video_changemode_ll_(bpp);
- }
- void gp2x_make_fb_bufferable(int yes)
- {
- }
- int soc_detect(void)
- {
- return 0;
- }
- /* plat */
- static char menu_bg_buffer[320*240*2];
- char cpu_clk_name[16] = "GP2X CPU clocks";
- void plat_video_menu_enter(int is_rom_loaded)
- {
- if (is_rom_loaded)
- {
- // darken the active framebuffer
- memset(g_screen_ptr, 0, 320*8*2);
- menu_darken_bg((char *)g_screen_ptr + 320*8*2, 320*224, 1);
- memset((char *)g_screen_ptr + 320*232*2, 0, 320*8*2);
- }
- else
- {
- char buff[256];
- // should really only happen once, on startup..
- emu_make_path(buff, "skin/background.png", sizeof(buff));
- if (readpng(g_screen_ptr, buff, READPNG_BG) < 0)
- memset(g_screen_ptr, 0, 320*240*2);
- }
- memcpy(menu_bg_buffer, g_screen_ptr, 320*240*2);
- // switch to 16bpp
- gp2x_video_changemode_ll_(16);
- gp2x_video_flip_();
- }
- void plat_video_menu_begin(void)
- {
- memcpy(g_screen_ptr, menu_bg_buffer, 320*240*2);
- }
- void plat_video_menu_end(void)
- {
- gp2x_video_flip_();
- }
- void plat_validate_config(void)
- {
- // PicoOpt &= ~POPT_EXT_FM;
- }
- void plat_early_init(void)
- {
- }
- void plat_init(void)
- {
- realloc_screen();
- memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
- // snd
- sndout_oss_init();
- xlib_init();
- }
- void plat_finish(void)
- {
- free(g_screen_ptr);
- sndout_oss_exit();
- }
- /* nasty */
- static void do_nothing()
- {
- }
- void *gp2x_video_flip = gp2x_video_flip_;
- void *gp2x_video_flip2 = gp2x_video_flip_;
- void *gp2x_video_changemode_ll = gp2x_video_changemode_ll_;
- void *gp2x_video_setpalette = gp2x_video_setpalette_;
- void *gp2x_video_RGB_setscaling = do_nothing;
- void *gp2x_video_wait_vsync = do_nothing;
- void *gp2x_set_cpuclk = do_nothing;
- void *gp2x_read_battery = do_nothing;
- void *set_lcd_custom_rate = do_nothing;
- void *unset_lcd_custom_rate = do_nothing;
- void *set_lcd_gamma = do_nothing;
- void *set_ram_timings = do_nothing;
- void *unset_ram_timings = do_nothing;
- /* joy */
- int gp2x_touchpad_read(int *x, int *y)
- {
- return -1;
- }
- /* misc */
- void spend_cycles(int c)
- {
- usleep(c/200);
- }
- int mp3_get_bitrate(FILE *f, int size)
- {
- return 128;
- }
- void mp3_start_play(FILE *f, int pos)
- {
- }
- void mp3_update(int *buffer, int length, int stereo)
- {
- }
- /* lprintf */
- void lprintf(const char *fmt, ...)
- {
- va_list vl;
- va_start(vl, fmt);
- vprintf(fmt, vl);
- va_end(vl);
- }
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