/*

SDL - Simple DirectMedia Layer

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Sam Lantinga

slouken@libsdl.org

*/

#include "SDL_config.h"

/* SDL PS3 video driver implementation based on dummy video driver

*

* Initial work by Ryan C. Gordon (icculus@icculus.org). A good portion

* of this was cut-and-pasted from Stephane Peter's work in the AAlib

* SDL video driver. Renamed to "DUMMY" by Sam Lantinga.

*/

#include "SDL_video.h"

#include "SDL_mouse.h"

#include "../SDL_sysvideo.h"

#include "../SDL_pixels_c.h"

#include "../../events/SDL_events_c.h"

#include "SDL_ps3video.h"

#include "SDL_ps3spe_c.h"

#include "SDL_ps3events_c.h"

#include "SDL_ps3render_c.h"

#include "SDL_ps3modes_c.h"

#include <fcntl.h>

#include <linux/fb.h>

#include <asm/ps3fb.h>

#include <sys/mman.h>

#define PS3VID_DRIVER_NAME "ps3"

/* Initialization/Query functions */

static int PS3_VideoInit(_THIS);

static void PS3_VideoQuit(_THIS);

/* Stores the SPE executable name of fb_writer_spu */

extern spe_program_handle_t fb_writer_spu;

/* PS3 driver bootstrap functions */

static int

PS3_Available(void)

{

deprintf(1, "+PS3_Available()\n");

const char *envr = SDL_getenv("SDL_VIDEODRIVER");

if ((envr) && (SDL_strcmp(envr, PS3VID_DRIVER_NAME) == 0)) {

return (1);

}

deprintf(1, "-PS3_Available()\n");

return (0);

}

static void

PS3_DeleteDevice(SDL_VideoDevice * device)

{

deprintf(1, "+PS3_DeleteDevice()\n");

SDL_free(device->driverdata);

SDL_free(device);

deprintf(1, "-PS3_DeleteDevice()\n");

}

static SDL_VideoDevice *

PS3_CreateDevice(int devindex)

{

deprintf(1, "+PS3_CreateDevice()\n");

SDL_VideoDevice *device;

SDL_VideoData *data;

/* Initialize all variables that we clean on shutdown */

device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));

if (!device) {

SDL_OutOfMemory();

if (device) {

SDL_free(device);

}

return (0);

}

data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));

if (!data) {

SDL_OutOfMemory();

SDL_free(device);

return (0);

}

device->driverdata = data;

/* Set the function pointers */

device->VideoInit = PS3_VideoInit;

device->VideoQuit = PS3_VideoQuit;

device->SetDisplayMode = PS3_SetDisplayMode;

device->GetDisplayModes = PS3_GetDisplayModes;

device->PumpEvents = PS3_PumpEvents;

device->free = PS3_DeleteDevice;

deprintf(1, "-PS3_CreateDevice()\n");

return device;

}

VideoBootStrap PS3_bootstrap = {

PS3VID_DRIVER_NAME, "SDL PS3 Cell video driver",

PS3_Available, PS3_CreateDevice

};

int

PS3_VideoInit(_THIS)

{

int i;

deprintf(1, "PS3_VideoInit()\n");

SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

SDL_DisplayMode mode;

/* Create SPU fb_parms and thread structure */

data->fb_parms = (struct fb_writer_parms_t *)

memalign(16, sizeof(struct fb_writer_parms_t));

data->fb_thread_data = (spu_data_t *) malloc(sizeof(spu_data_t));

if (data->fb_parms == NULL || data->fb_thread_data == NULL) {

SDL_OutOfMemory();

return -1;

}

data->fb_thread_data->program = fb_writer_spu;

data->fb_thread_data->program_name = "fb_writer_spu";

data->fb_thread_data->argp = (void *)data->fb_parms;

data->fb_thread_data->keepalive = 1;

data->fb_thread_data->booted = 0;

SPE_Start(data->fb_thread_data);

/* Open the device */

data->fbdev = open(PS3DEV, O_RDWR);

if (data->fbdev < 0) {

SDL_SetError("[PS3] Unable to open device %s", PS3DEV);

return -1;

}

/* Take control of frame buffer from kernel, for details see

* http://felter.org/wesley/files/ps3/linux-20061110-docs/ApplicationProgrammingEnvironment.html

* kernel will no longer flip the screen itself

*/

ioctl(data->fbdev, PS3FB_IOCTL_ON, 0);

/* Unblank screen */

ioctl(data->fbdev, FBIOBLANK, 0);

struct fb_fix_screeninfo fb_finfo;

if (ioctl(data->fbdev, FBIOGET_FSCREENINFO, &fb_finfo)) {

SDL_SetError("[PS3] Can't get fixed screeninfo");

return (0);

}

/* Note: on PS3, fb_finfo.smem_len is enough for double buffering */

if ((data->frame_buffer = (uint8_t *)mmap(0, fb_finfo.smem_len,

PROT_READ | PROT_WRITE, MAP_SHARED,

data->fbdev, 0)) == (uint8_t *) - 1) {

SDL_SetError("[PS3] Can't mmap for %s", PS3DEV);

return (0);

} else {

/* Enable double buffering */

}

/* Blank screen */

memset(data->frame_buffer, 0x00, fb_finfo.smem_len);

PS3_InitModes(_this);

for (i = 0; i < _this->num_displays; ++i) {

SDL_AddRenderDriver(&_this->displays[i], &SDL_PS3_RenderDriver);

}

/* We're done! */

return 0;

}

void

PS3_VideoQuit(_THIS)

{

deprintf(1, "PS3_VideoQuit()\n");

SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

PS3_QuitModes(_this);

/* Unmap framebuffer */

if (data->frame_buffer) {

struct fb_fix_screeninfo fb_finfo;

if (ioctl(data->fbdev, FBIOGET_FSCREENINFO, &fb_finfo) != -1) {

munmap(data->frame_buffer, fb_finfo.smem_len);

data->frame_buffer = 0;

}

}

/* Shutdown SPE and related resources */

if (data->fb_parms)

free((void *)data->fb_parms);

if (data->fb_thread_data) {

SPE_Shutdown(data->fb_thread_data);

free((void *)data->fb_thread_data);

}

/* Close device */

if (data->fbdev) {

/* Give control of frame buffer back to kernel */

ioctl(data->fbdev, PS3FB_IOCTL_OFF, 0);

close(data->fbdev);

data->fbdev = -1;

}

}

/* vi: set ts=4 sw=4 expandtab: */