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Diffstat (limited to 'distrib/sdl-1.2.15/src/video/ipod/SDL_ipodvideo.c')
-rw-r--r--distrib/sdl-1.2.15/src/video/ipod/SDL_ipodvideo.c733
1 files changed, 733 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/ipod/SDL_ipodvideo.c b/distrib/sdl-1.2.15/src/video/ipod/SDL_ipodvideo.c
new file mode 100644
index 0000000..a2f3db3
--- /dev/null
+++ b/distrib/sdl-1.2.15/src/video/ipod/SDL_ipodvideo.c
@@ -0,0 +1,733 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2012 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <termios.h>
+#include <ctype.h>
+
+#include <linux/vt.h>
+#include <linux/kd.h>
+#include <linux/keyboard.h>
+#include <linux/fb.h>
+
+#include "SDL_video.h"
+#include "SDL_mouse.h"
+#include "../SDL_sysvideo.h"
+#include "../SDL_pixels_c.h"
+#include "../../events/SDL_events_c.h"
+#include "SDL_sysevents.h"
+#include "SDL_ipodvideo.h"
+
+#define _THIS SDL_VideoDevice *this
+
+static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat);
+static SDL_Rect **iPod_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags);
+static SDL_Surface *iPod_SetVideoMode (_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
+static int iPod_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color *colors);
+static void iPod_UpdateRects (_THIS, int nrects, SDL_Rect *rects);
+static void iPod_VideoQuit (_THIS);
+static void iPod_PumpEvents (_THIS);
+
+static long iPod_GetGeneration();
+
+static int initd = 0;
+static int kbfd = -1;
+static int fbfd = -1;
+static int oldvt = -1;
+static int curvt = -1;
+static int old_kbmode = -1;
+static long generation = 0;
+static struct termios old_termios, cur_termios;
+
+FILE *dbgout;
+
+#define LCD_DATA 0x10
+#define LCD_CMD 0x08
+#define IPOD_OLD_LCD_BASE 0xc0001000
+#define IPOD_OLD_LCD_RTC 0xcf001110
+#define IPOD_NEW_LCD_BASE 0x70003000
+#define IPOD_NEW_LCD_RTC 0x60005010
+
+static unsigned long lcd_base, lcd_rtc, lcd_width, lcd_height;
+
+static long iPod_GetGeneration()
+{
+ int i;
+ char cpuinfo[256];
+ char *ptr;
+ FILE *file;
+
+ if ((file = fopen("/proc/cpuinfo", "r")) != NULL) {
+ while (fgets(cpuinfo, sizeof(cpuinfo), file) != NULL)
+ if (SDL_strncmp(cpuinfo, "Revision", 8) == 0)
+ break;
+ fclose(file);
+ }
+ for (i = 0; !isspace(cpuinfo[i]); i++);
+ for (; isspace(cpuinfo[i]); i++);
+ ptr = cpuinfo + i + 2;
+
+ return SDL_strtol(ptr, NULL, 10);
+}
+
+static int iPod_Available()
+{
+ return 1;
+}
+
+static void iPod_DeleteDevice (SDL_VideoDevice *device)
+{
+ free (device->hidden);
+ free (device);
+}
+
+void iPod_InitOSKeymap (_THIS) {}
+
+static SDL_VideoDevice *iPod_CreateDevice (int devindex)
+{
+ SDL_VideoDevice *this;
+
+ this = (SDL_VideoDevice *)SDL_malloc (sizeof(SDL_VideoDevice));
+ if (this) {
+ memset (this, 0, sizeof *this);
+ this->hidden = (struct SDL_PrivateVideoData *) SDL_malloc (sizeof(struct SDL_PrivateVideoData));
+ }
+ if (!this || !this->hidden) {
+ SDL_OutOfMemory();
+ if (this)
+ SDL_free (this);
+ return 0;
+ }
+ memset (this->hidden, 0, sizeof(struct SDL_PrivateVideoData));
+
+ generation = iPod_GetGeneration();
+
+ this->VideoInit = iPod_VideoInit;
+ this->ListModes = iPod_ListModes;
+ this->SetVideoMode = iPod_SetVideoMode;
+ this->SetColors = iPod_SetColors;
+ this->UpdateRects = iPod_UpdateRects;
+ this->VideoQuit = iPod_VideoQuit;
+ this->AllocHWSurface = 0;
+ this->CheckHWBlit = 0;
+ this->FillHWRect = 0;
+ this->SetHWColorKey = 0;
+ this->SetHWAlpha = 0;
+ this->LockHWSurface = 0;
+ this->UnlockHWSurface = 0;
+ this->FlipHWSurface = 0;
+ this->FreeHWSurface = 0;
+ this->SetCaption = 0;
+ this->SetIcon = 0;
+ this->IconifyWindow = 0;
+ this->GrabInput = 0;
+ this->GetWMInfo = 0;
+ this->InitOSKeymap = iPod_InitOSKeymap;
+ this->PumpEvents = iPod_PumpEvents;
+ this->free = iPod_DeleteDevice;
+
+ return this;
+}
+
+VideoBootStrap iPod_bootstrap = {
+ "ipod", "iPod Framebuffer Driver",
+ iPod_Available, iPod_CreateDevice
+};
+
+//--//
+
+static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat)
+{
+ if (!initd) {
+ /*** Code adapted/copied from SDL fbcon driver. ***/
+
+ static const char * const tty0[] = { "/dev/tty0", "/dev/vc/0", 0 };
+ static const char * const vcs[] = { "/dev/vc/%d", "/dev/tty%d", 0 };
+ int i, tty0_fd;
+
+ dbgout = fdopen (open ("/etc/sdlpod.log", O_WRONLY | O_SYNC | O_APPEND), "a");
+ if (dbgout) {
+ setbuf (dbgout, 0);
+ fprintf (dbgout, "--> Started SDL <--\n");
+ }
+
+ // Try to query for a free VT
+ tty0_fd = -1;
+ for ( i=0; tty0[i] && (tty0_fd < 0); ++i ) {
+ tty0_fd = open(tty0[i], O_WRONLY, 0);
+ }
+ if ( tty0_fd < 0 ) {
+ tty0_fd = dup(0); /* Maybe stdin is a VT? */
+ }
+ ioctl(tty0_fd, VT_OPENQRY, &curvt);
+ close(tty0_fd);
+
+ tty0_fd = open("/dev/tty", O_RDWR, 0);
+ if ( tty0_fd >= 0 ) {
+ ioctl(tty0_fd, TIOCNOTTY, 0);
+ close(tty0_fd);
+ }
+
+ if ( (geteuid() == 0) && (curvt > 0) ) {
+ for ( i=0; vcs[i] && (kbfd < 0); ++i ) {
+ char vtpath[12];
+
+ SDL_snprintf(vtpath, SDL_arraysize(vtpath), vcs[i], curvt);
+ kbfd = open(vtpath, O_RDWR);
+ }
+ }
+ if ( kbfd < 0 ) {
+ if (dbgout) fprintf (dbgout, "Couldn't open any VC\n");
+ return -1;
+ }
+ if (dbgout) fprintf (stderr, "Current VT: %d\n", curvt);
+
+ if (kbfd >= 0) {
+ /* Switch to the correct virtual terminal */
+ if ( curvt > 0 ) {
+ struct vt_stat vtstate;
+
+ if ( ioctl(kbfd, VT_GETSTATE, &vtstate) == 0 ) {
+ oldvt = vtstate.v_active;
+ }
+ if ( ioctl(kbfd, VT_ACTIVATE, curvt) == 0 ) {
+ if (dbgout) fprintf (dbgout, "Waiting for switch to this VT... ");
+ ioctl(kbfd, VT_WAITACTIVE, curvt);
+ if (dbgout) fprintf (dbgout, "done!\n");
+ }
+ }
+
+ // Set terminal input mode
+ if (tcgetattr (kbfd, &old_termios) < 0) {
+ if (dbgout) fprintf (dbgout, "Can't get termios\n");
+ return -1;
+ }
+ cur_termios = old_termios;
+ // cur_termios.c_iflag &= ~(ICRNL | INPCK | ISTRIP | IXON);
+ // cur_termios.c_iflag |= (BRKINT);
+ // cur_termios.c_lflag &= ~(ICANON | ECHO | ISIG | IEXTEN);
+ // cur_termios.c_oflag &= ~(OPOST);
+ // cur_termios.c_oflag |= (ONOCR | ONLRET);
+ cur_termios.c_lflag &= ~(ICANON | ECHO | ISIG);
+ cur_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
+ cur_termios.c_cc[VMIN] = 0;
+ cur_termios.c_cc[VTIME] = 0;
+
+ if (tcsetattr (kbfd, TCSAFLUSH, &cur_termios) < 0) {
+ if (dbgout) fprintf (dbgout, "Can't set termios\n");
+ return -1;
+ }
+ if (ioctl (kbfd, KDSKBMODE, K_MEDIUMRAW) < 0) {
+ if (dbgout) fprintf (dbgout, "Can't set medium-raw mode\n");
+ return -1;
+ }
+ if (ioctl (kbfd, KDSETMODE, KD_GRAPHICS) < 0) {
+ if (dbgout) fprintf (dbgout, "Can't set graphics\n");
+ return -1;
+ }
+ }
+
+ // Open the framebuffer
+ if ((fbfd = open ("/dev/fb0", O_RDWR)) < 0) {
+ if (dbgout) fprintf (dbgout, "Can't open framebuffer\n");
+ return -1;
+ } else {
+ struct fb_var_screeninfo vinfo;
+
+ if (dbgout) fprintf (dbgout, "Generation: %ld\n", generation);
+
+ if (generation >= 40000) {
+ lcd_base = IPOD_NEW_LCD_BASE;
+ } else {
+ lcd_base = IPOD_OLD_LCD_BASE;
+ }
+
+ ioctl (fbfd, FBIOGET_VSCREENINFO, &vinfo);
+ close (fbfd);
+
+ if (lcd_base == IPOD_OLD_LCD_BASE)
+ lcd_rtc = IPOD_OLD_LCD_RTC;
+ else if (lcd_base == IPOD_NEW_LCD_BASE)
+ lcd_rtc = IPOD_NEW_LCD_RTC;
+ else {
+ SDL_SetError ("Unknown iPod version");
+ return -1;
+ }
+
+ lcd_width = vinfo.xres;
+ lcd_height = vinfo.yres;
+
+ if (dbgout) fprintf (dbgout, "LCD is %dx%d\n", lcd_width, lcd_height);
+ }
+
+ fcntl (kbfd, F_SETFL, O_RDWR | O_NONBLOCK);
+
+ /* Determine the current screen size */
+ this->info.current_w = lcd_width;
+ this->info.current_h = lcd_height;
+
+ if ((generation >= 60000) && (generation < 70000)) {
+ vformat->BitsPerPixel = 16;
+ vformat->Rmask = 0xF800;
+ vformat->Gmask = 0x07E0;
+ vformat->Bmask = 0x001F;
+ } else {
+ vformat->BitsPerPixel = 8;
+ vformat->Rmask = vformat->Gmask = vformat->Bmask = 0;
+ }
+
+ initd = 1;
+ if (dbgout) fprintf (dbgout, "Initialized.\n\n");
+ }
+ return 0;
+}
+
+static SDL_Rect **iPod_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags)
+{
+ int width, height, fd;
+ static SDL_Rect r;
+ static SDL_Rect *rs[2] = { &r, 0 };
+
+ if ((fd = open ("/dev/fb0", O_RDWR)) < 0) {
+ return 0;
+ } else {
+ struct fb_var_screeninfo vinfo;
+
+ ioctl (fbfd, FBIOGET_VSCREENINFO, &vinfo);
+ close (fbfd);
+
+ width = vinfo.xres;
+ height = vinfo.yres;
+ }
+ r.x = r.y = 0;
+ r.w = width;
+ r.h = height;
+ return rs;
+}
+
+
+static SDL_Surface *iPod_SetVideoMode (_THIS, SDL_Surface *current, int width, int height, int bpp,
+ Uint32 flags)
+{
+ Uint32 Rmask, Gmask, Bmask;
+ if (bpp > 8) {
+ Rmask = 0xF800;
+ Gmask = 0x07E0;
+ Bmask = 0x001F;
+ } else {
+ Rmask = Gmask = Bmask = 0;
+ }
+
+ if (this->hidden->buffer) SDL_free (this->hidden->buffer);
+ this->hidden->buffer = SDL_malloc (width * height * (bpp / 8));
+ if (!this->hidden->buffer) {
+ SDL_SetError ("Couldn't allocate buffer for requested mode");
+ return 0;
+ }
+
+ memset (this->hidden->buffer, 0, width * height * (bpp / 8));
+
+ if (!SDL_ReallocFormat (current, bpp, Rmask, Gmask, Bmask, 0)) {
+ SDL_SetError ("Couldn't allocate new pixel format");
+ SDL_free (this->hidden->buffer);
+ this->hidden->buffer = 0;
+ return 0;
+ }
+
+ if (bpp <= 8) {
+ int i, j;
+ for (i = 0; i < 256; i += 4) {
+ for (j = 0; j < 4; j++) {
+ current->format->palette->colors[i+j].r = 85 * j;
+ current->format->palette->colors[i+j].g = 85 * j;
+ current->format->palette->colors[i+j].b = 85 * j;
+ }
+ }
+ }
+
+ current->flags = flags & SDL_FULLSCREEN;
+ this->hidden->w = current->w = width;
+ this->hidden->h = current->h = height;
+ current->pitch = current->w * (bpp / 8);
+ current->pixels = this->hidden->buffer;
+
+ return current;
+}
+
+static int iPod_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color *colors)
+{
+ if (SDL_VideoSurface && SDL_VideoSurface->format && SDL_VideoSurface->format->palette) {
+ int i, j;
+ for (i = 0; i < 256; i += 4) {
+ for (j = 0; j < 4; j++) {
+ SDL_VideoSurface->format->palette->colors[i+j].r = 85 * j;
+ SDL_VideoSurface->format->palette->colors[i+j].g = 85 * j;
+ SDL_VideoSurface->format->palette->colors[i+j].b = 85 * j;
+ }
+ }
+ }
+ return 0;
+}
+
+static void iPod_VideoQuit (_THIS)
+{
+ ioctl (kbfd, KDSETMODE, KD_TEXT);
+ tcsetattr (kbfd, TCSAFLUSH, &old_termios);
+ old_kbmode = -1;
+
+ if (oldvt > 0)
+ ioctl (kbfd, VT_ACTIVATE, oldvt);
+
+ if (kbfd > 0)
+ close (kbfd);
+
+ if (dbgout) {
+ fprintf (dbgout, "<-- Ended SDL -->\n");
+ fclose (dbgout);
+ }
+
+ kbfd = -1;
+}
+
+static char iPod_SC_keymap[] = {
+ 0, /* 0 - no key */
+ '[' - 0x40, /* ESC (Ctrl+[) */
+ '1', '2', '3', '4', '5', '6', '7', '8', '9',
+ '-', '=',
+ '\b', '\t', /* Backspace, Tab (Ctrl+H,Ctrl+I) */
+ 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']',
+ '\n', 0, /* Enter, Left CTRL */
+ 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`',
+ 0, '\\', /* left shift, backslash */
+ 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
+ 0, '*', 0, ' ', 0, /* right shift, KP mul, left alt, space, capslock */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* F1-10 */
+ 0, 0, /* numlock, scrollock */
+ '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', /* numeric keypad */
+ 0, 0, /* padding */
+ 0, 0, 0, /* "less" (?), F11, F12 */
+ 0, 0, 0, 0, 0, 0, 0, /* padding */
+ '\n', 0, '/', 0, 0, /* KP enter, Rctrl, Ctrl, KP div, PrtSc, RAlt */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, /* Break, Home, Up, PgUp, Left, Right, End, Down, PgDn */
+ 0, 0, /* Ins, Del */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* padding */
+ 0, 0, /* RWin, LWin */
+ 0 /* no key */
+};
+
+
+static void iPod_keyboard()
+{
+ unsigned char keybuf[128];
+ int i, nread;
+ SDL_keysym keysym;
+ SDL_Event ev;
+
+ keysym.mod = 0;
+ keysym.scancode = 0xff;
+ memset (&ev, 0, sizeof(SDL_Event));
+
+ nread = read (kbfd, keybuf, 128);
+ for (i = 0; i < nread; i++) {
+ char ascii = iPod_SC_keymap[keybuf[i] & 0x7f];
+
+ if (dbgout) fprintf (dbgout, "Key! %02x is %c %s", keybuf[i], ascii, (keybuf[i] & 0x80)? "up" : "down");
+
+ keysym.sym = keysym.unicode = ascii;
+ ev.type = (keybuf[i] & 0x80)? SDL_KEYUP : SDL_KEYDOWN;
+ ev.key.state = 0;
+ ev.key.keysym = keysym;
+ SDL_PushEvent (&ev);
+ }
+}
+
+static void iPod_PumpEvents (_THIS)
+{
+ fd_set fdset;
+ int max_fd = 0;
+ static struct timeval zero;
+ int posted;
+
+ do {
+ posted = 0;
+
+ FD_ZERO (&fdset);
+ if (kbfd >= 0) {
+ FD_SET (kbfd, &fdset);
+ max_fd = kbfd;
+ }
+ if (dbgout) fprintf (dbgout, "Selecting");
+ if (select (max_fd + 1, &fdset, 0, 0, &zero) > 0) {
+ if (dbgout) fprintf (dbgout, " -> match!\n");
+ iPod_keyboard();
+ posted++;
+ }
+ if (dbgout) fprintf (dbgout, "\n");
+ } while (posted);
+}
+
+// enough space for 160x128x2
+static char ipod_scr[160 * (128/4)];
+
+#define outl(datum,addr) (*(volatile unsigned long *)(addr) = (datum))
+#define inl(addr) (*(volatile unsigned long *)(addr))
+
+/*** The following LCD code is taken from Linux kernel uclinux-2.4.24-uc0-ipod2,
+ file arch/armnommu/mach-ipod/fb.c. A few modifications have been made. ***/
+
+/* get current usec counter */
+static int M_timer_get_current(void)
+{
+ return inl(lcd_rtc);
+}
+
+/* check if number of useconds has past */
+static int M_timer_check(int clock_start, int usecs)
+{
+ unsigned long clock;
+ clock = inl(lcd_rtc);
+
+ if ( (clock - clock_start) >= usecs ) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+/* wait for LCD with timeout */
+static void M_lcd_wait_write(void)
+{
+ if ( (inl(lcd_base) & 0x8000) != 0 ) {
+ int start = M_timer_get_current();
+
+ do {
+ if ( (inl(lcd_base) & (unsigned int)0x8000) == 0 )
+ break;
+ } while ( M_timer_check(start, 1000) == 0 );
+ }
+}
+
+
+/* send LCD data */
+static void M_lcd_send_data(int data_lo, int data_hi)
+{
+ M_lcd_wait_write();
+
+ outl(data_lo, lcd_base + LCD_DATA);
+
+ M_lcd_wait_write();
+
+ outl(data_hi, lcd_base + LCD_DATA);
+
+}
+
+/* send LCD command */
+static void
+M_lcd_prepare_cmd(int cmd)
+{
+ M_lcd_wait_write();
+
+ outl(0x0, lcd_base + LCD_CMD);
+
+ M_lcd_wait_write();
+
+ outl(cmd, lcd_base + LCD_CMD);
+
+}
+
+/* send LCD command and data */
+static void M_lcd_cmd_and_data(int cmd, int data_lo, int data_hi)
+{
+ M_lcd_prepare_cmd(cmd);
+
+ M_lcd_send_data(data_lo, data_hi);
+}
+
+// Copied from uW
+static void M_update_display(int sx, int sy, int mx, int my)
+{
+ int y;
+ unsigned short cursor_pos;
+
+ sx >>= 3;
+ mx >>= 3;
+
+ cursor_pos = sx + (sy << 5);
+
+ for ( y = sy; y <= my; y++ ) {
+ unsigned char *img_data;
+ int x;
+
+ /* move the cursor */
+ M_lcd_cmd_and_data(0x11, cursor_pos >> 8, cursor_pos & 0xff);
+
+ /* setup for printing */
+ M_lcd_prepare_cmd(0x12);
+
+ img_data = ipod_scr + (sx << 1) + (y * (lcd_width/4));
+
+ /* loops up to 160 times */
+ for ( x = sx; x <= mx; x++ ) {
+ /* display eight pixels */
+ M_lcd_send_data(*(img_data + 1), *img_data);
+
+ img_data += 2;
+ }
+
+ /* update cursor pos counter */
+ cursor_pos += 0x20;
+ }
+}
+
+/* get current usec counter */
+static int C_timer_get_current(void)
+{
+ return inl(0x60005010);
+}
+
+/* check if number of useconds has past */
+static int C_timer_check(int clock_start, int usecs)
+{
+ unsigned long clock;
+ clock = inl(0x60005010);
+
+ if ( (clock - clock_start) >= usecs ) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+/* wait for LCD with timeout */
+static void C_lcd_wait_write(void)
+{
+ if ((inl(0x70008A0C) & 0x80000000) != 0) {
+ int start = C_timer_get_current();
+
+ do {
+ if ((inl(0x70008A0C) & 0x80000000) == 0)
+ break;
+ } while (C_timer_check(start, 1000) == 0);
+ }
+}
+static void C_lcd_cmd_data(int cmd, int data)
+{
+ C_lcd_wait_write();
+ outl(cmd | 0x80000000, 0x70008A0C);
+
+ C_lcd_wait_write();
+ outl(data | 0x80000000, 0x70008A0C);
+}
+
+static void C_update_display(int sx, int sy, int mx, int my)
+{
+ int height = (my - sy) + 1;
+ int width = (mx - sx) + 1;
+
+ char *addr = SDL_VideoSurface->pixels;
+
+ if (width & 1) width++;
+
+ /* start X and Y */
+ C_lcd_cmd_data(0x12, (sy & 0xff));
+ C_lcd_cmd_data(0x13, (((SDL_VideoSurface->w - 1) - sx) & 0xff));
+
+ /* max X and Y */
+ C_lcd_cmd_data(0x15, (((sy + height) - 1) & 0xff));
+ C_lcd_cmd_data(0x16, (((((SDL_VideoSurface->w - 1) - sx) - width) + 1) & 0xff));
+
+ addr += sx + sy * SDL_VideoSurface->pitch;
+
+ while (height > 0) {
+ int h, x, y, pixels_to_write;
+
+ pixels_to_write = (width * height) * 2;
+
+ /* calculate how much we can do in one go */
+ h = height;
+ if (pixels_to_write > 64000) {
+ h = (64000/2) / width;
+ pixels_to_write = (width * h) * 2;
+ }
+
+ outl(0x10000080, 0x70008A20);
+ outl((pixels_to_write - 1) | 0xC0010000, 0x70008A24);
+ outl(0x34000000, 0x70008A20);
+
+ /* for each row */
+ for (x = 0; x < h; x++)
+ {
+ /* for each column */
+ for (y = 0; y < width; y += 2) {
+ unsigned two_pixels;
+
+ two_pixels = addr[0] | (addr[1] << 16);
+ addr += 2;
+
+ while ((inl(0x70008A20) & 0x1000000) == 0);
+
+ /* output 2 pixels */
+ outl(two_pixels, 0x70008B00);
+ }
+
+ addr += SDL_VideoSurface->w - width;
+ }
+
+ while ((inl(0x70008A20) & 0x4000000) == 0);
+
+ outl(0x0, 0x70008A24);
+
+ height = height - h;
+ }
+}
+
+// Should work with photo. However, I don't have one, so I'm not sure.
+static void iPod_UpdateRects (_THIS, int nrects, SDL_Rect *rects)
+{
+ if (SDL_VideoSurface->format->BitsPerPixel == 16) {
+ C_update_display (0, 0, lcd_width, lcd_height);
+ } else {
+ int i, y, x;
+ for (i = 0; i < nrects; i++) {
+ SDL_Rect *r = rects + i;
+ if (!r) {
+ continue;
+ }
+
+ for (y = r->y; (y < r->y + r->h) && y < lcd_height; y++) {
+ for (x = r->x; (x < r->x + r->w) && x < lcd_width; x++) {
+ ipod_scr[y*(lcd_width/4) + x/4] &= ~(3 << (2 * (x%4)));
+ ipod_scr[y*(lcd_width/4) + x/4] |=
+ (((Uint8*)(SDL_VideoSurface->pixels))[ y*SDL_VideoSurface->pitch + x ] & 3) << (2 * (x%4));
+ }
+ }
+ }
+
+ M_update_display (0, 0, lcd_width, lcd_height);
+ }
+}
generated by cgit v1.1 at 2024-05-08 01:26:11 +0000