src/video/ipod/SDL_ipodvideo.c
author Ryan C. Gordon <icculus@icculus.org>
Thu, 08 Sep 2005 07:33:22 +0000
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iPod Linux framebuffer support. --ryan. Date: Sun, 19 Jun 2005 15:53:22 -0700 From: Joshua Oreman <oremanj@gmail.com> To: sdl@libsdl.org Subject: [SDL] [PATCH] iPod framebuffer video driver Hi SDL-list, I've been working on a port of SDL to iPodLinux (http://www.ipodlinux.org). I've created a patch for both the standard 2-bit iPod screen (using an unchangeable palette) and the 16-bit iPod photo. The patch is attached, against version 1.2.8. I've created two pages on the iPodLinux wiki about this patch: http://www.ipodlinux.org/Building_SDL and http://www.ipodlinux.org/SDL_Programming. See those pages if you're curious. Comments? Questions? Is this something that might be able to get into SDL 1.2.9? Thanks for your feedback! -- Josh
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <termios.h>
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#include <ctype.h>
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#include <linux/vt.h>
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#include <linux/kd.h>
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#include <linux/keyboard.h>
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#include <linux/fb.h>
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#include "SDL.h"
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#include "SDL_error.h"
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#include "SDL_video.h"
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#include "SDL_mouse.h"
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#include "SDL_sysvideo.h"
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#include "SDL_pixels_c.h"
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#include "SDL_events_c.h"
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#include "SDL_sysevents.h"
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#include "SDL_ipodvideo.h"
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#define _THIS SDL_VideoDevice *this
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static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat);
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static SDL_Rect **iPod_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags);
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static SDL_Surface *iPod_SetVideoMode (_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
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static int iPod_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color *colors);
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static void iPod_UpdateRects (_THIS, int nrects, SDL_Rect *rects);
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static void iPod_VideoQuit (_THIS);
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static void iPod_PumpEvents (_THIS);
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static long iPod_GetGeneration();
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static int initd = 0;
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static int kbfd = -1;
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static int fbfd = -1;
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static int oldvt = -1;
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static int curvt = -1;
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static int old_kbmode = -1;
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static long generation = 0;
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static struct termios old_termios, cur_termios;
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FILE *dbgout;
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#define LCD_DATA          0x10
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#define LCD_CMD           0x08
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#define IPOD_OLD_LCD_BASE 0xc0001000
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#define IPOD_OLD_LCD_RTC  0xcf001110
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#define IPOD_NEW_LCD_BASE 0x70003000
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#define IPOD_NEW_LCD_RTC  0x60005010
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static unsigned long lcd_base, lcd_rtc, lcd_width, lcd_height;
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static long iPod_GetGeneration() 
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{
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    int i;
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    char cpuinfo[256];
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    char *ptr;
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    FILE *file;
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    if ((file = fopen("/proc/cpuinfo", "r")) != NULL) {
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	while (fgets(cpuinfo, sizeof(cpuinfo), file) != NULL)
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	    if (strncmp(cpuinfo, "Revision", 8) == 0)
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		break;
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	fclose(file);
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    }
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    for (i = 0; !isspace(cpuinfo[i]); i++);
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    for (; isspace(cpuinfo[i]); i++);
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    ptr = cpuinfo + i + 2;
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    return strtol(ptr, NULL, 10);
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}
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static int iPod_Available() 
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{
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    return 1;
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}
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static void iPod_DeleteDevice (SDL_VideoDevice *device)
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{
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    free (device->hidden);
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    free (device);
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}
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void iPod_InitOSKeymap (_THIS) {}
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static SDL_VideoDevice *iPod_CreateDevice (int devindex)
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{
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    SDL_VideoDevice *this;
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    this = (SDL_VideoDevice *)malloc (sizeof(SDL_VideoDevice));
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    if (this) {
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	memset (this, 0, sizeof *this);
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	this->hidden = (struct SDL_PrivateVideoData *) malloc (sizeof(struct SDL_PrivateVideoData));
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    }
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    if (!this || !this->hidden) {
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	SDL_OutOfMemory();
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	if (this)
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	    free (this);
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	return 0;
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    }
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    memset (this->hidden, 0, sizeof(struct SDL_PrivateVideoData));
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    generation = iPod_GetGeneration();
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    this->VideoInit = iPod_VideoInit;
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    this->ListModes = iPod_ListModes;
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    this->SetVideoMode = iPod_SetVideoMode;
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    this->SetColors = iPod_SetColors;
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    this->UpdateRects = iPod_UpdateRects;
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    this->VideoQuit = iPod_VideoQuit;
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    this->AllocHWSurface = 0;
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    this->CheckHWBlit = 0;
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    this->FillHWRect = 0;
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    this->SetHWColorKey = 0;
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    this->SetHWAlpha = 0;
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    this->LockHWSurface = 0;
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    this->UnlockHWSurface = 0;
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    this->FlipHWSurface = 0;
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    this->FreeHWSurface = 0;
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    this->SetCaption = 0;
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    this->SetIcon = 0;
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    this->IconifyWindow = 0;
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    this->GrabInput = 0;
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    this->GetWMInfo = 0;
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    this->InitOSKeymap = iPod_InitOSKeymap;
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    this->PumpEvents = iPod_PumpEvents;
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    this->free = iPod_DeleteDevice;
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    return this;
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}
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VideoBootStrap iPod_bootstrap = {
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    "ipod", "iPod Framebuffer Driver",
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    iPod_Available, iPod_CreateDevice
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   141
};
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   142
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   143
//--//
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   144
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   145
static int iPod_VideoInit (_THIS, SDL_PixelFormat *vformat)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   146
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   147
    if (!initd) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   148
	/*** Code adapted/copied from SDL fbcon driver. ***/
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   149
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   150
	static const char * const tty0[] = { "/dev/tty0", "/dev/vc/0", 0 };
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   151
	static const char * const vcs[] = { "/dev/vc/%d", "/dev/tty%d", 0 };
af8b0f9ac2f4 iPod Linux framebuffer support.
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parents:
diff changeset
   152
	int i, tty0_fd;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   153
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   154
	dbgout = fdopen (open ("/etc/sdlpod.log", O_WRONLY | O_SYNC | O_APPEND), "a");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   155
	if (dbgout) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   156
	    setbuf (dbgout, 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   157
	    fprintf (dbgout, "--> Started SDL <--\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   158
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   159
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   160
	// Try to query for a free VT
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   161
	tty0_fd = -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   162
	for ( i=0; tty0[i] && (tty0_fd < 0); ++i ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   163
	    tty0_fd = open(tty0[i], O_WRONLY, 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   164
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   165
	if ( tty0_fd < 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   166
	    tty0_fd = dup(0); /* Maybe stdin is a VT? */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   167
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   168
	ioctl(tty0_fd, VT_OPENQRY, &curvt);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   169
	close(tty0_fd);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   170
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   171
	tty0_fd = open("/dev/tty", O_RDWR, 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   172
	if ( tty0_fd >= 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   173
	    ioctl(tty0_fd, TIOCNOTTY, 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   174
	    close(tty0_fd);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   175
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   176
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   177
	if ( (geteuid() == 0) && (curvt > 0) ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   178
	    for ( i=0; vcs[i] && (kbfd < 0); ++i ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   179
		char vtpath[12];
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   180
		
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   181
		sprintf(vtpath, vcs[i], curvt);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   182
		kbfd = open(vtpath, O_RDWR);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   183
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   184
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   185
	if ( kbfd < 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   186
	    if (dbgout) fprintf (dbgout, "Couldn't open any VC\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   187
	    return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   188
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   189
	if (dbgout) fprintf (stderr, "Current VT: %d\n", curvt);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   190
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   191
	if (kbfd >= 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   192
	    /* Switch to the correct virtual terminal */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   193
	    if ( curvt > 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   194
		struct vt_stat vtstate;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   195
		
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   196
		if ( ioctl(kbfd, VT_GETSTATE, &vtstate) == 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   197
		    oldvt = vtstate.v_active;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   198
		}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   199
		if ( ioctl(kbfd, VT_ACTIVATE, curvt) == 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   200
		    if (dbgout) fprintf (dbgout, "Waiting for switch to this VT... ");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   201
		    ioctl(kbfd, VT_WAITACTIVE, curvt);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   202
		    if (dbgout) fprintf (dbgout, "done!\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   203
		}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   204
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   205
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   206
	    // Set terminal input mode
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   207
	    if (tcgetattr (kbfd, &old_termios) < 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   208
		if (dbgout) fprintf (dbgout, "Can't get termios\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   209
		return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   210
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   211
	    cur_termios = old_termios;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   212
	    //	    cur_termios.c_iflag &= ~(ICRNL | INPCK | ISTRIP | IXON);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   213
	    //	    cur_termios.c_iflag |= (BRKINT);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   214
	    //	    cur_termios.c_lflag &= ~(ICANON | ECHO | ISIG | IEXTEN);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   215
	    //	    cur_termios.c_oflag &= ~(OPOST);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   216
	    //	    cur_termios.c_oflag |= (ONOCR | ONLRET);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   217
	    cur_termios.c_lflag &= ~(ICANON | ECHO | ISIG);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   218
	    cur_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   219
	    cur_termios.c_cc[VMIN] = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   220
	    cur_termios.c_cc[VTIME] = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   221
	    
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   222
	    if (tcsetattr (kbfd, TCSAFLUSH, &cur_termios) < 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   223
		if (dbgout) fprintf (dbgout, "Can't set termios\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   224
		return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   225
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   226
	    if (ioctl (kbfd, KDSKBMODE, K_MEDIUMRAW) < 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   227
		if (dbgout) fprintf (dbgout, "Can't set medium-raw mode\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   228
		return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   229
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   230
	    if (ioctl (kbfd, KDSETMODE, KD_GRAPHICS) < 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   231
		if (dbgout) fprintf (dbgout, "Can't set graphics\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   232
		return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   233
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   234
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   235
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   236
	// Open the framebuffer
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   237
	if ((fbfd = open ("/dev/fb0", O_RDWR)) < 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   238
	    if (dbgout) fprintf (dbgout, "Can't open framebuffer\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   239
	    return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   240
	} else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   241
	    struct fb_var_screeninfo vinfo;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   242
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   243
	    if (dbgout) fprintf (dbgout, "Generation: %ld\n", generation);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   244
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   245
	    if (generation >= 40000) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   246
		lcd_base = IPOD_NEW_LCD_BASE;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   247
	    } else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   248
		lcd_base = IPOD_OLD_LCD_BASE;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   249
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   250
	    
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   251
	    ioctl (fbfd, FBIOGET_VSCREENINFO, &vinfo);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   252
	    close (fbfd);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   253
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   254
	    if (lcd_base == IPOD_OLD_LCD_BASE)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   255
		lcd_rtc = IPOD_OLD_LCD_RTC;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   256
	    else if (lcd_base == IPOD_NEW_LCD_BASE)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   257
		lcd_rtc = IPOD_NEW_LCD_RTC;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   258
	    else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   259
		SDL_SetError ("Unknown iPod version");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   260
		return -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   261
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   262
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   263
	    lcd_width = vinfo.xres;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   264
	    lcd_height = vinfo.yres;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   265
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   266
	    if (dbgout) fprintf (dbgout, "LCD is %dx%d\n", lcd_width, lcd_height);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   267
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   268
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   269
	fcntl (kbfd, F_SETFL, O_RDWR | O_NONBLOCK);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   270
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   271
	if ((generation >= 60000) && (generation < 70000)) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   272
	    vformat->BitsPerPixel = 16;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   273
	    vformat->Rmask = 0xF800;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   274
	    vformat->Gmask = 0x07E0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   275
	    vformat->Bmask = 0x001F;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   276
	} else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   277
	    vformat->BitsPerPixel = 8;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   278
	    vformat->Rmask = vformat->Gmask = vformat->Bmask = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   279
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   280
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   281
	initd = 1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   282
	if (dbgout) fprintf (dbgout, "Initialized.\n\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   283
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   284
    return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   285
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   286
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   287
static SDL_Rect **iPod_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   288
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   289
    int width, height, fd;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   290
    static SDL_Rect r;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   291
    static SDL_Rect *rs[2] = { &r, 0 };
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   292
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   293
    if ((fd = open ("/dev/fb0", O_RDWR)) < 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   294
	return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   295
    } else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   296
	struct fb_var_screeninfo vinfo;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   297
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   298
	ioctl (fbfd, FBIOGET_VSCREENINFO, &vinfo);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   299
	close (fbfd);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   300
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   301
	width = vinfo.xres;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   302
	height = vinfo.yres;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   303
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   304
    r.x = r.y = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   305
    r.w = width;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   306
    r.h = height;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   307
    return rs;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   308
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   309
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   310
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   311
static SDL_Surface *iPod_SetVideoMode (_THIS, SDL_Surface *current, int width, int height, int bpp,
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   312
				       Uint32 flags)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   313
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   314
    Uint32 Rmask, Gmask, Bmask;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   315
    if (bpp > 8) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   316
	Rmask = 0xF800;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   317
	Gmask = 0x07E0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   318
	Bmask = 0x001F;	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   319
    } else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   320
	Rmask = Gmask = Bmask = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   321
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   322
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   323
    if (this->hidden->buffer) free (this->hidden->buffer);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   324
    this->hidden->buffer = malloc (width * height * (bpp / 8));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   325
    if (!this->hidden->buffer) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   326
	SDL_SetError ("Couldn't allocate buffer for requested mode");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   327
	return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   328
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   329
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   330
    memset (this->hidden->buffer, 0, width * height * (bpp / 8));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   331
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   332
    if (!SDL_ReallocFormat (current, bpp, Rmask, Gmask, Bmask, 0)) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   333
	SDL_SetError ("Couldn't allocate new pixel format");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   334
	free (this->hidden->buffer);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   335
	this->hidden->buffer = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   336
	return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   337
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   338
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   339
    if (bpp <= 8) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   340
	int i, j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   341
	for (i = 0; i < 256; i += 4) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   342
	    for (j = 0; j < 4; j++) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   343
		current->format->palette->colors[i+j].r = 85 * j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   344
		current->format->palette->colors[i+j].g = 85 * j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   345
		current->format->palette->colors[i+j].b = 85 * j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   346
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   347
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   348
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   349
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   350
    current->flags = flags & SDL_FULLSCREEN;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   351
    this->hidden->w = current->w = width;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   352
    this->hidden->h = current->h = height;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   353
    current->pitch = current->w * (bpp / 8);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   354
    current->pixels = this->hidden->buffer;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   355
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   356
    return current;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   357
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   358
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   359
static int iPod_SetColors (_THIS, int firstcolor, int ncolors, SDL_Color *colors)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   360
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   361
    if (SDL_VideoSurface && SDL_VideoSurface->format && SDL_VideoSurface->format->palette) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   362
	int i, j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   363
	for (i = 0; i < 256; i += 4) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   364
	    for (j = 0; j < 4; j++) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   365
		SDL_VideoSurface->format->palette->colors[i+j].r = 85 * j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   366
		SDL_VideoSurface->format->palette->colors[i+j].g = 85 * j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   367
		SDL_VideoSurface->format->palette->colors[i+j].b = 85 * j;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   368
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   369
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   370
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   371
    return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   372
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   373
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   374
static void iPod_VideoQuit (_THIS)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   375
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   376
    ioctl (kbfd, KDSETMODE, KD_TEXT);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   377
    tcsetattr (kbfd, TCSAFLUSH, &old_termios);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   378
    old_kbmode = -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   379
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   380
    if (oldvt > 0)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   381
	ioctl (kbfd, VT_ACTIVATE, oldvt);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
    
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
    if (kbfd > 0)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   384
	close (kbfd);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   385
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
    if (dbgout) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
	fprintf (dbgout, "<-- Ended SDL -->\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
	fclose (dbgout);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   389
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   390
    
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
    kbfd = -1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   394
static char iPod_SC_keymap[] = {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   395
    0,				/* 0 - no key */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   396
    '[' - 0x40,			/* ESC (Ctrl+[) */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   397
    '1', '2', '3', '4', '5', '6', '7', '8', '9',
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
    '-', '=',
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   399
    '\b', '\t',			/* Backspace, Tab (Ctrl+H,Ctrl+I) */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   400
    'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']',
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
    '\n', 0,			/* Enter, Left CTRL */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   402
    'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`',
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   403
    0, '\\',			/* left shift, backslash */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   404
    'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   405
    0, '*', 0, ' ', 0,		/* right shift, KP mul, left alt, space, capslock */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* F1-10 */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   407
    0, 0,			/* numlock, scrollock */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
    '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', /* numeric keypad */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   409
    0, 0,			/* padding */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
    0, 0, 0,			/* "less" (?), F11, F12 */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   411
    0, 0, 0, 0, 0, 0, 0,	/* padding */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   412
    '\n', 0, '/', 0, 0,	/* KP enter, Rctrl, Ctrl, KP div, PrtSc, RAlt */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   413
    0, 0, 0, 0, 0, 0, 0, 0, 0,	/* Break, Home, Up, PgUp, Left, Right, End, Down, PgDn */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   414
    0, 0,			/* Ins, Del */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   415
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* padding */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   416
    0, 0,			/* RWin, LWin */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   417
    0				/* no key */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   418
};
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   419
    
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   420
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   421
static void iPod_keyboard() 
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
    unsigned char keybuf[128];
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   424
    int i, nread;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
    SDL_keysym keysym;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   426
    SDL_Event ev;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   427
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   428
    keysym.mod = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   429
    keysym.scancode = 0xff;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
    memset (&ev, 0, sizeof(SDL_Event));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   431
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
    nread = read (kbfd, keybuf, 128);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   433
    for (i = 0; i < nread; i++) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
	char ascii = iPod_SC_keymap[keybuf[i] & 0x7f];
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
	if (dbgout) fprintf (dbgout, "Key! %02x is %c %s", keybuf[i], ascii, (keybuf[i] & 0x80)? "up" : "down");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   438
	keysym.sym = keysym.unicode = ascii;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
	ev.type = (keybuf[i] & 0x80)? SDL_KEYUP : SDL_KEYDOWN;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
	ev.key.state = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
	ev.key.keysym = keysym;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
	SDL_PushEvent (&ev);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
static void iPod_PumpEvents (_THIS) 
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   448
    fd_set fdset;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
    int max_fd = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   450
    static struct timeval zero;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
    int posted;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   453
    do {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
	posted = 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   455
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
	FD_ZERO (&fdset);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457
	if (kbfd >= 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
	    FD_SET (kbfd, &fdset);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
	    max_fd = kbfd;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   461
	if (dbgout) fprintf (dbgout, "Selecting");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   462
	if (select (max_fd + 1, &fdset, 0, 0, &zero) > 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   463
	    if (dbgout) fprintf (dbgout, " -> match!\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
	    iPod_keyboard();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
	    posted++;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
	if (dbgout) fprintf (dbgout, "\n");
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
    } while (posted);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
// enough space for 160x128x2
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   472
static char ipod_scr[160 * (128/4)];
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
#define outl(datum,addr) (*(volatile unsigned long *)(addr) = (datum))
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
#define inl(addr) (*(volatile unsigned long *)(addr))
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   476
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   477
/*** The following LCD code is taken from Linux kernel uclinux-2.4.24-uc0-ipod2,
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
     file arch/armnommu/mach-ipod/fb.c. A few modifications have been made. ***/
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
/* get current usec counter */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
static int M_timer_get_current(void)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   482
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
	return inl(lcd_rtc);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   484
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   485
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   486
/* check if number of useconds has past */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
static int M_timer_check(int clock_start, int usecs)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
	unsigned long clock;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   490
	clock = inl(lcd_rtc);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
	if ( (clock - clock_start) >= usecs ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
		return 1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   494
	} else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
		return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   496
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   497
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   498
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   499
/* wait for LCD with timeout */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
static void M_lcd_wait_write(void)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   502
	if ( (inl(lcd_base) & 0x8000) != 0 ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   503
		int start = M_timer_get_current();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   504
			
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   505
		do {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   506
			if ( (inl(lcd_base) & (unsigned int)0x8000) == 0 ) 
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   507
				break;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   508
		} while ( M_timer_check(start, 1000) == 0 );
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   509
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   513
/* send LCD data */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   514
static void M_lcd_send_data(int data_lo, int data_hi)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   515
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   516
	M_lcd_wait_write();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   517
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   518
	outl(data_lo, lcd_base + LCD_DATA);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   519
		
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   520
	M_lcd_wait_write();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   521
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   522
	outl(data_hi, lcd_base + LCD_DATA);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   524
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   525
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   526
/* send LCD command */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   527
static void
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   528
M_lcd_prepare_cmd(int cmd)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   529
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   530
	M_lcd_wait_write();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   531
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   532
	outl(0x0, lcd_base + LCD_CMD);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   533
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   534
	M_lcd_wait_write();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   535
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   536
	outl(cmd, lcd_base + LCD_CMD);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   537
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   538
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   539
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
/* send LCD command and data */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   541
static void M_lcd_cmd_and_data(int cmd, int data_lo, int data_hi)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   542
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   543
	M_lcd_prepare_cmd(cmd);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   544
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   545
	M_lcd_send_data(data_lo, data_hi);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   546
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   547
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   548
// Copied from uW
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   549
static void M_update_display(int sx, int sy, int mx, int my)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   550
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   551
	int y;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   552
	unsigned short cursor_pos;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   553
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   554
	sx >>= 3;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   555
	mx >>= 3;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   556
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   557
	cursor_pos = sx + (sy << 5);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   558
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   559
	for ( y = sy; y <= my; y++ ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   560
		unsigned char *img_data;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   561
		int x;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   562
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   563
		/* move the cursor */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   564
		M_lcd_cmd_and_data(0x11, cursor_pos >> 8, cursor_pos & 0xff);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   565
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   566
		/* setup for printing */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   567
		M_lcd_prepare_cmd(0x12);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   568
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   569
		img_data = ipod_scr + (sx << 1) + (y * (lcd_width/4));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   570
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   571
		/* loops up to 160 times */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   572
		for ( x = sx; x <= mx; x++ ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   573
		        /* display eight pixels */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
			M_lcd_send_data(*(img_data + 1), *img_data);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   575
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   576
			img_data += 2;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   577
		}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   578
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   579
		/* update cursor pos counter */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   580
		cursor_pos += 0x20;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   581
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   582
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   583
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   584
/* get current usec counter */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   585
static int C_timer_get_current(void)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   586
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   587
	return inl(0x60005010);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   588
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   589
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   590
/* check if number of useconds has past */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
static int C_timer_check(int clock_start, int usecs)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   592
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   593
	unsigned long clock;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   594
	clock = inl(0x60005010);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
	if ( (clock - clock_start) >= usecs ) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
		return 1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
	} else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   599
		return 0;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   601
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   602
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   603
/* wait for LCD with timeout */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
static void C_lcd_wait_write(void)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
	if ((inl(0x70008A0C) & 0x80000000) != 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   607
		int start = C_timer_get_current();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   608
			
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   609
		do {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   610
			if ((inl(0x70008A0C) & 0x80000000) == 0) 
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   611
				break;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   612
		} while (C_timer_check(start, 1000) == 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   613
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   614
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
static void C_lcd_cmd_data(int cmd, int data)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   616
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   617
	C_lcd_wait_write();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   618
	outl(cmd | 0x80000000, 0x70008A0C);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   619
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   620
	C_lcd_wait_write();
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   621
	outl(data | 0x80000000, 0x70008A0C);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   622
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
static void C_update_display(int sx, int sy, int mx, int my)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   626
	int height = (my - sy) + 1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
	int width = (mx - sx) + 1;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
	char *addr = SDL_VideoSurface->pixels;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   630
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   631
	if (width & 1) width++;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   632
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   633
	/* start X and Y */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   634
	C_lcd_cmd_data(0x12, (sy & 0xff));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   635
	C_lcd_cmd_data(0x13, (((SDL_VideoSurface->w - 1) - sx) & 0xff));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
	/* max X and Y */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
	C_lcd_cmd_data(0x15, (((sy + height) - 1) & 0xff));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
	C_lcd_cmd_data(0x16, (((((SDL_VideoSurface->w - 1) - sx) - width) + 1) & 0xff));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   641
	addr += sx + sy * SDL_VideoSurface->pitch;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   642
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   643
	while (height > 0) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   644
		int h, x, y, pixels_to_write;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   645
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   646
		pixels_to_write = (width * height) * 2;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   647
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   648
		/* calculate how much we can do in one go */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   649
		h = height;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   650
		if (pixels_to_write > 64000) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   651
			h = (64000/2) / width;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   652
			pixels_to_write = (width * h) * 2;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   653
		}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   654
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
		outl(0x10000080, 0x70008A20);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   656
		outl((pixels_to_write - 1) | 0xC0010000, 0x70008A24);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   657
		outl(0x34000000, 0x70008A20);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   658
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   659
		/* for each row */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   660
		for (x = 0; x < h; x++)
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   661
		{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   662
			/* for each column */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   663
			for (y = 0; y < width; y += 2) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   664
				unsigned two_pixels;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   665
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   666
				two_pixels = addr[0] | (addr[1] << 16);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   667
				addr += 2;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   668
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   669
				while ((inl(0x70008A20) & 0x1000000) == 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   670
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   671
				/* output 2 pixels */
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   672
				outl(two_pixels, 0x70008B00);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   673
			}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   674
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   675
			addr += SDL_VideoSurface->w - width;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   676
		}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   677
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   678
		while ((inl(0x70008A20) & 0x4000000) == 0);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   679
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   680
		outl(0x0, 0x70008A24);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   681
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   682
		height = height - h;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   683
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   684
}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   685
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   686
// Should work with photo. However, I don't have one, so I'm not sure.
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   687
static void iPod_UpdateRects (_THIS, int nrects, SDL_Rect *rects) 
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   688
{
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   689
    if (SDL_VideoSurface->format->BitsPerPixel == 16) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   690
	C_update_display (0, 0, lcd_width, lcd_height);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   691
    } else {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   692
	int i, y, x;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   693
	for (i = 0; i < nrects; i++) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   694
	    SDL_Rect *r = rects + i;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   695
	    if (!r) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   696
		continue;
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   697
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   698
	    
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   699
	    for (y = r->y; (y < r->y + r->h) && y < lcd_height; y++) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   700
		for (x = r->x; (x < r->x + r->w) && x < lcd_width; x++) {
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   701
		    ipod_scr[y*(lcd_width/4) + x/4] &= ~(3 << (2 * (x%4)));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   702
		    ipod_scr[y*(lcd_width/4) + x/4] |=
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   703
			(((Uint8*)(SDL_VideoSurface->pixels))[ y*SDL_VideoSurface->pitch + x ] & 3) << (2 * (x%4));
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   704
		}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   705
	    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   706
	}
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   707
	
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   708
	M_update_display (0, 0, lcd_width, lcd_height);
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   709
    }
af8b0f9ac2f4 iPod Linux framebuffer support.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   710
}