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Added framebuffer mapping.
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@martinlowinski
martinlowinski committed Nov 12, 2009
1 parent 2433963 commit 29c25d9
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Showing 5 changed files with 112 additions and 113 deletions.
101 changes: 13 additions & 88 deletions src/video/fbcon-1.3/SDL_fbmodes.c
View file
Expand Up @@ -21,110 +21,35 @@
*/
#include "SDL_config.h"

#include "SDL_ps3video.h"
#include "SDL_fbvideo.h"

void
PS3_InitModes(_THIS)
FB_InitModes(_THIS)
{
deprintf(1, "+PS3_InitModes()\n");
deprintf(1, "+FB_InitModes()\n");
SDL_VideoDisplay display;
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
SDL_DisplayMode mode;
PS3_DisplayModeData *modedata;
unsigned long vid = 0;

modedata = (PS3_DisplayModeData *) SDL_malloc(sizeof(*modedata));
if (!modedata) {
return;
}

/* Setting up the DisplayMode based on current settings */
struct ps3fb_ioctl_res res;
if (ioctl(data->fbdev, PS3FB_IOCTL_SCREENINFO, &res)) {
SDL_SetError("Can't get PS3FB_IOCTL_SCREENINFO");
}
mode.format = SDL_PIXELFORMAT_RGB888;
mode.refresh_rate = 0;
mode.w = res.xres;
mode.h = res.yres;

/* Setting up driver specific mode data,
* Get the current ps3 specific videmode number */
if (ioctl(data->fbdev, PS3FB_IOCTL_GETMODE, (unsigned long)&vid)) {
SDL_SetError("Can't get PS3FB_IOCTL_GETMODE");
}
deprintf(2, "PS3FB_IOCTL_GETMODE = %u\n", vid);
modedata->mode = vid;
mode.driverdata = modedata;

/* Set display's videomode and add it */
SDL_zero(display);
display.desktop_mode = mode;
display.current_mode = mode;

SDL_AddVideoDisplay(&display);
deprintf(1, "-PS3_InitModes()\n");
deprintf(1, "-FB_InitModes()\n");
}

/* DisplayModes available on the PS3 */
static SDL_DisplayMode ps3fb_modedb[] = {
/* VESA */
{SDL_PIXELFORMAT_RGB888, 1280, 768, 0, NULL}, // WXGA
{SDL_PIXELFORMAT_RGB888, 1280, 1024, 0, NULL}, // SXGA
{SDL_PIXELFORMAT_RGB888, 1920, 1200, 0, NULL}, // WUXGA
/* Native resolutions (progressive, "fullscreen") */
{SDL_PIXELFORMAT_RGB888, 720, 480, 0, NULL}, // 480p
{SDL_PIXELFORMAT_RGB888, 1280, 720, 0, NULL}, // 720p
{SDL_PIXELFORMAT_RGB888, 1920, 1080, 0, NULL} // 1080p
};

/* PS3 videomode number according to ps3fb_modedb */
static PS3_DisplayModeData ps3fb_data[] = {
{11}, {12}, {13}, {130}, {131}, {133},
};

void
PS3_GetDisplayModes(_THIS) {
deprintf(1, "+PS3_GetDisplayModes()\n");
SDL_DisplayMode mode;
unsigned int nummodes;

nummodes = sizeof(ps3fb_modedb) / sizeof(SDL_DisplayMode);

int n;
for (n=0; n<nummodes; ++n) {
/* Get driver specific mode data */
ps3fb_modedb[n].driverdata = &ps3fb_data[n];

/* Add DisplayMode to list */
deprintf(2, "Adding resolution %u x %u\n", ps3fb_modedb[n].w, ps3fb_modedb[n].h);
SDL_AddDisplayMode(_this->current_display, &ps3fb_modedb[n]);
}
deprintf(1, "-PS3_GetDisplayModes()\n");
FB_GetDisplayModes(_THIS) {
deprintf(1, "+FB_GetDisplayModes()\n");
deprintf(1, "-FB_GetDisplayModes()\n");
}

int
PS3_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
FB_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
{
deprintf(1, "+PS3_SetDisplayMode()\n");
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
PS3_DisplayModeData *dispdata = (PS3_DisplayModeData *) mode->driverdata;

/* Set the new DisplayMode */
deprintf(2, "Setting PS3FB_MODE to %u\n", dispdata->mode);
if (ioctl(data->fbdev, PS3FB_IOCTL_SETMODE, (unsigned long)&dispdata->mode)) {
deprintf(2, "Could not set PS3FB_MODE\n");
SDL_SetError("Could not set PS3FB_MODE\n");
return -1;
}

deprintf(1, "-PS3_SetDisplayMode()\n");
deprintf(1, "+FB_SetDisplayMode()\n");
deprintf(1, "-FB_SetDisplayMode()\n");
return 0;
}

void
PS3_QuitModes(_THIS) {
deprintf(1, "+PS3_QuitModes()\n");
FB_QuitModes(_THIS) {
deprintf(1, "+FB_QuitModes()\n");

/* There was no mem allocated for driverdata */
int i, j;
Expand All @@ -135,7 +60,7 @@ PS3_QuitModes(_THIS) {
}
}

deprintf(1, "-PS3_QuitModes()\n");
deprintf(1, "-FB_QuitModes()\n");
}

/* vi: set ts=4 sw=4 expandtab: */
14 changes: 7 additions & 7 deletions src/video/fbcon-1.3/SDL_fbmodes_c.h
View file
Expand Up @@ -21,14 +21,14 @@
*/
#include "SDL_config.h"

#ifndef _SDL_ps3modes_h
#define _SDL_ps3modes_h
#ifndef _SDL_fbmodes_h
#define _SDL_fbmodes_h

extern void PS3_InitModes(_THIS);
extern void PS3_GetDisplayModes(_THIS);
extern int PS3_SetDisplayMode(_THIS, SDL_DisplayMode * mode);
extern void PS3_QuitModes(_THIS);
extern void FB_InitModes(_THIS);
extern void FB_GetDisplayModes(_THIS);
extern int FB_SetDisplayMode(_THIS, SDL_DisplayMode * mode);
extern void FB_QuitModes(_THIS);

#endif /* SDL_ps3modes_h */
#endif /* SDL_fbmodes_h */

/* vi: set ts=4 sw=4 expandtab: */
8 changes: 0 additions & 8 deletions src/video/fbcon-1.3/SDL_fbrender.c
View file
Expand Up @@ -232,14 +232,6 @@ SDL_FB_RenderPresent(SDL_Renderer * renderer)
SDL_FB_RenderData *data =
(SDL_FB_RenderData *) renderer->driverdata;

/* Send the data to the display */
if (SDL_getenv("SDL_VIDEO_FB_SAVE_FRAMES")) {
char file[128];
SDL_snprintf(file, sizeof(file), "SDL_window%d-%8.8d.bmp",
renderer->window, ++frame_number);
SDL_SaveBMP(data->screens[data->current_screen], file);
}

/* Update the flipping chain, if any */
if (renderer->info.flags & SDL_RENDERER_PRESENTFLIP2) {
data->current_screen = (data->current_screen + 1) % 2;
Expand Down
98 changes: 88 additions & 10 deletions src/video/fbcon-1.3/SDL_fbvideo.c
View file
Expand Up @@ -54,9 +54,37 @@

/* Initialization/Query functions */
static int FB_VideoInit(_THIS);
static int FB_SetDisplayMode(_THIS, SDL_DisplayMode * mode);
static void FB_VideoQuit(_THIS);

static int
SDL_getpagesize(void)
{
#ifdef HAVE_GETPAGESIZE
return getpagesize();
#elif defined(PAGE_SIZE)
return PAGE_SIZE;
#else
#error Can not determine system page size.
/* this is what it USED to be in Linux... */
return 4096;
#endif
}


/* Small wrapper for mmap() so we can play nicely with no-mmu hosts
* (non-mmu hosts disallow the MAP_SHARED flag) */
static void *
do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
{
void *ret;
ret = mmap(start, length, prot, flags, fd, offset);
if (ret == (char *) -1 && (flags & MAP_SHARED)) {
ret = mmap(start, length, prot,
(flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset);
}
return ret;
}

/* bootstrap functions */
static int
FB_Available(void)
Expand Down Expand Up @@ -133,7 +161,7 @@ FB_CreateDevice(int devindex)
return device;
}

VideoBootStrap FB_bootstrap = {
VideoBootStrap FBCON_bootstrap = {
FBVID_DRIVER_NAME, "Linux framebuffer video driver",
FB_Available, FB_CreateDevice
};
Expand All @@ -146,12 +174,14 @@ FB_VideoInit(_THIS)
SDL_DisplayMode mode;
struct fb_fix_screeninfo finfo;
const char *SDL_fbdev;
const int pagesize = SDL_getpagesize();

/* Initialize the library */
SDL_fbdev = SDL_getenv("SDL_FBDEV");
if (SDL_fbdev == NULL) {
SDL_fbdev = "/dev/fb0";
}
/* Open the device */
data->console_fd = open(SDL_fbdev, O_RDWR, 0);
if (data->console_fd < 0) {
SDL_SetError("Unable to open %s", SDL_fbdev);
Expand All @@ -174,6 +204,41 @@ FB_VideoInit(_THIS)
return -1;
}

switch (finfo.visual) {
case FB_VISUAL_TRUECOLOR:
case FB_VISUAL_PSEUDOCOLOR:
case FB_VISUAL_STATIC_PSEUDOCOLOR:
case FB_VISUAL_DIRECTCOLOR:
break;
default:
SDL_SetError("Unsupported console hardware");
FB_VideoQuit(_this);
return -1;
}

/* Check if the user wants to disable hardware acceleration
* FIXME: Maybe better in fbrenderer? */
{
const char *fb_accel;
fb_accel = SDL_getenv("SDL_FBACCEL");
if (fb_accel) {
finfo.accel = SDL_atoi(fb_accel);
}
}

/* Memory map the device, compensating for buggy PPC mmap() */
data->mapped_offset = (((long) finfo.smem_start) -
(((long) finfo.smem_start) & ~(pagesize - 1)));
data->mapped_memlen = finfo.smem_len + data->mapped_offset;
data->mapped_mem = (char*) do_mmap(NULL, data->mapped_memlen,
PROT_READ | PROT_WRITE, MAP_SHARED, data->console_fd, 0);
if (data->mapped_mem == (char *) -1) {
SDL_SetError("Unable to memory map the video hardware");
data->mapped_mem = NULL;
FB_VideoQuit(_this);
return -1;
}

/* Use a fake 32-bpp desktop mode */
mode.format = SDL_PIXELFORMAT_RGB888;
mode.w = 1024;
Expand All @@ -191,18 +256,31 @@ FB_VideoInit(_THIS)
return 0;
}

static int
FB_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
{
deprintf(1, "+FB_SetDisplayMode()\n");
deprintf(1, "-FB_SetDisplayMode()\n");
return 0;
}

void
FB_VideoQuit(_THIS)
{
deprintf(1, "+FB_VideoQuit()\n");
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

/* Clear the lock mutex */
if (data->hw_lock) {
SDL_DestroyMutex(data->hw_lock);
data->hw_lock = NULL;
}

/* Close console and input file descriptors */
if (data->console_fd > 0) {
/* Unmap the video framebuffer and I/O registers */
if (data->mapped_mem) {
munmap(data->mapped_mem, data->mapped_memlen);
data->mapped_mem = NULL;
}

/* We're all done with the framebuffer */
close(data->console_fd);
data->console_fd = -1;
}

deprintf(1, "-FB_VideoQuit()\n");
}

4 changes: 4 additions & 0 deletions src/video/fbcon-1.3/SDL_fbvideo.h
View file
Expand Up @@ -58,6 +58,10 @@ typedef struct SDL_VideoData
int console_fd;
/* hardware surface lock mutex */
SDL_mutex *hw_lock;
/* Framebuffer */
char *mapped_mem;
int mapped_memlen;
int mapped_offset;
} SDL_VideoData;

#endif /* _SDL_fbvideo_h */
Expand Down

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