splash screen for homebrew warning

reaper2k2 · Post by **reaper2k2** » Sun Jan 05, 2003 5:16 am

any one got a simple bit of code to display a png on a timer

so say 5 sec then go on to yout program ive got one but it dont work

i cant get it working to my liking

Code: Select all

#include <kos.h>
#include <png/png.h>









pvr_ptr_t splash_tex;

/* draw background */
void draw_splash(void)
{
    pvr_poly_cxt_t cxt;
    pvr_poly_hdr_t hdr;
    pvr_vertex_t vert;

    pvr_poly_cxt_txr(&cxt, PVR_LIST_OP_POLY, PVR_TXRFMT_RGB565, 256, 256, splash_tex, PVR_FILTER_BILINEAR);
    pvr_poly_compile(&hdr, &cxt);
    pvr_prim(&hdr, sizeof(hdr));

    vert.argb = PVR_PACK_COLOR(1.0f, 1.0f, 1.0f, 1.0f);    
    vert.oargb = 0;
    vert.flags = PVR_CMD_VERTEX;
    
    vert.x = 1;
    vert.y = 1;
    vert.z = 1;
    vert.u = 0.0;
    vert.v = 0.0;
    pvr_prim(&vert, sizeof(vert));
    
    vert.x = 640;
    vert.y = 1;
    vert.z = 1;
    vert.u = 1.0;
    vert.v = 0.0;
    pvr_prim(&vert, sizeof(vert));
    
    vert.x = 1;
    vert.y = 480;
    vert.z = 1;
    vert.u = 0.0;
    vert.v = 1.0;
    pvr_prim(&vert, sizeof(vert));
    
    vert.x = 640;
    vert.y = 480;
    vert.z = 1;
    vert.u = 1.0;
    vert.v = 1.0;
    vert.flags = PVR_CMD_VERTEX_EOL;
    pvr_prim(&vert, sizeof(vert));
}

//main functions 

int main (int argc, char **argv)
{


	/* Draws splashscreen */    
    splash_tex = pvr_mem_malloc(256*256*2);
    png_to_texture("/cd/1.png", splash_tex, PNG_NO_ALPHA);
    
       pvr_wait_ready();
    pvr_scene_begin();
    
    pvr_list_begin(PVR_LIST_OP_POLY);
    draw_splash();
    pvr_list_finish();
    pvr_scene_finish();

    pvr_wait_ready();	/* Flip screen to first buffer */
    pvr_scene_begin();
    pvr_scene_finish();

	timer_spin_sleep(2000000);
	pvr_mem_free(splash_tex);
	
		return 0;
}

i need to start puting up a screen saying its freeware dont buy it ETC as i was told some people are selling some of the stuff i put out

thanks

toastman · Post by **toastman** » Sun Jan 05, 2003 7:30 am

timer_spin_sleep(int milliseconds)

It will pause execution of the program for the amount of time requested.
The vram should remain constant.

BlackAura · Post by **BlackAura** » Sun Jan 05, 2003 7:57 am

This should work (as long as I've not made a typo) - it's a butchered version of the PNG example.

Code: Select all

#include <kos.h>
#include <png/png.h>

static pvr_ptr_t back_tex;

static void draw_splash(float fadevalue)
{
    pvr_poly_cxt_t cxt;
    pvr_poly_hdr_t hdr;
    pvr_vertex_t vert;

    pvr_wait_ready();
    pvr_scene_begin();
    pvr_list_begin(PVR_LIST_OP_POLY);
    
    pvr_poly_cxt_txr(&cxt, PVR_LIST_OP_POLY, PVR_TXRFMT_RGB565, 512, 512, back_tex, PVR_FILTER_BILINEAR);
    pvr_poly_compile(&hdr, &cxt);
    pvr_prim(&hdr, sizeof(hdr));

    vert.argb = PVR_PACK_COLOR(fadevalue, fadevalue, fadevalue, 1.0f);    
    vert.oargb = 0;
    vert.flags = PVR_CMD_VERTEX;
    
    vert.x = 1;
    vert.y = 1;
    vert.z = 1;
    vert.u = 0.0;
    vert.v = 0.0;
    pvr_prim(&vert, sizeof(vert));
    
    vert.x = 640;
    vert.y = 1;
    vert.z = 1;
    vert.u = 1.0;
    vert.v = 0.0;
    pvr_prim(&vert, sizeof(vert));
    
    vert.x = 1;
    vert.y = 480;
    vert.z = 1;
    vert.u = 0.0;
    vert.v = 1.0;
    pvr_prim(&vert, sizeof(vert));
    
    vert.x = 640;
    vert.y = 480;
    vert.z = 1;
    vert.u = 1.0;
    vert.v = 1.0;
    vert.flags = PVR_CMD_VERTEX_EOL;
    pvr_prim(&vert, sizeof(vert));

    pvr_list_finish();
    pvr_list_begin(PVR_LIST_TR_POLY);
    pvr_list_finish();
    pvr_scene_finish();
}

void hbsplash_draw(void)
{
	float i;

	// Init everything
    pvr_init_defaults();      
    back_tex = pvr_mem_malloc(512*512*2);
    png_to_texture("/rd/hbsplash.png", back_tex, PNG_NO_ALPHA);
 
	// Fade in
	for(i = 0.0f; i < 1.0f; i += 0.05f)
	{
		draw_frame(i);
		timer_spin_sleep(100);
	}

	// Show for 5 seconds
	draw_frame(1.0f);
	timer_spin_sleep(5000);

	// Fade out
	for(i = 1.0f; i > 0.0f; i -= 0.05f)
	{
		draw_frame(i);
		timer_spin_sleep(100);
	}
    
	return 0;
}

Post by **BlueCrab** » Sun Jan 05, 2003 8:50 am

Or you could do your splash screen in SDL, like so (this is taken from the game I'm writing)

Code: Select all

#include "SDL.h"
int main(int argc, char *argv[])	{
	uint32 flags = SDL_HWSURFACE | SDL_DOUBLEBUF;
	SDL_Surface * screen, * image;

	if(SDL_Init(SDL_INIT_VIDEO) < 0)	{
		return -1;
	}

	/* Set our video mode to 640x480 16bpp */
	screen = SDL_SetVideoMode(640, 480, 16, flags);

/* This stuff, right now, is only applicable to the DC version. */
#ifdef _arch_dreamcast

	/* Load up disclaimer */
	image = SDL_LoadBMP("/cd/images/discl.bmp");

	/* Put up the Disclaimer */
	SDL_BlitSurface(image, NULL, screen, NULL);
	SDL_Flip(screen);

	SDL_Delay(20000);

	/* Get rid of the image */
	SDL_FreeSurface(image);

#endif

/* put the rest of your game here, of course, in different functions */
	return 0;
}

And that's it. Of course you could experiment with SDL_image, and get other types to work, I've gotten PNG to work, and thats all I need, I'll post the modified SDL_image sometime, probably after I finish my homework.

Later.

reaper2k2 · Post by **reaper2k2** » Sun Jan 05, 2003 9:27 am

Code: Select all

ernel/arch/dreamcast/include -c example.c -o example.o
example.c: In function `hbsplash_draw':
example.c:71: warning: implicit declaration of function `draw_frame'
example.c:86: warning: `return' with a value, in function returning void
example.c: At top level:
example.c:7: warning: `draw_splash' defined but not used
/usr/local/dc/kos/utils/genromfs/genromfs -f romdisk_boot.img -d romdisk_boot -v
0    rom 3e184e3e         [0xffffffff, 0xffffffff] 37777777777, sz     0, at 0x0
1    .                    [0x2ee9    , 0x9c0c355f] 0040755, sz     0, at 0x20
1    ..                   [0x2ee9    , 0xc5c2af21] 0040755, sz     0, at 0x40     [lin
k to 0x20    ]
1    Thumbs.db            [0x2ee9    , 0xb0a0c872] 0100644, sz 19456, at 0x60
1    1.png                [0x2ee9    , 0x4e87662f] 0100644, sz 37800, at 0x4c80
/usr/local/dc/kos/utils/bin2o/bin2o romdisk_boot.img romdisk_boot romdisk_boot.o
/usr/local/dc/sh-elf/bin/sh-elf-gcc -Wall -g -ml -m4-single-only -O1     -ml -m4-singl
e-only -nostartfiles -nostdlib -Wl,-Ttext=0x8c010000 -L/usr/local/dc/kos/lib -o exampl
e.elf /usr/local/dc/kos/kernel/arch/dreamcast/kernel/startup.o example.o romdisk_boot.
o -lpng -lz -lm -lkallisti -lgcc
example.o: In function `hbsplash_draw':
/usr/local/dc/kos/examples/dreamcast/png/example.c:87: undefined reference to `draw_fr
ame'
/usr/local/dc/kos/lib/libkallisti.a(main.o): In function `arch_main':
/usr/local/dc/kos/kernel/arch/dreamcast/kernel/main.c:135: undefined reference to `mai
n'
collect2: ld returned 1 exit status
make: *** [example.elf] Error 1

is what i got i think some thing is acting up not sure

ive not tryed any think with it yet just typed make

and it gave me those errors im sure its nothing to do with you

reaper2k2 · Post by **reaper2k2** » Sun Jan 05, 2003 10:20 am

BLUE CRAB splash screen
small edit by reaper2k2

Code: Select all

#include "SDL.h" 
int main(int argc, char *argv[])   { 
   uint32 flags = (SDL_HWSURFACE|SDL_FULLSCREEN); //i changed this
   SDL_Surface * screen, * image; 

   if(SDL_Init(SDL_INIT_VIDEO) < 0)   { 
      return -1; 
   } 

   /* Set our video mode to 640x480 16bpp */ 
   screen = SDL_SetVideoMode(640, 480, 16, flags); 

/* This stuff, right now, is only applicable to the DC version. */ 
#ifdef _arch_dreamcast 

   /* Load up disclaimer */ 
   image = SDL_LoadBMP("/cd/splash.bmp"); 

   /* Put up the Disclaimer */ 
   SDL_BlitSurface(image, NULL, screen, NULL); 
   SDL_Flip(screen); 

   SDL_Delay(200000); 

   /* Get rid of the image */ 
   SDL_FreeSurface(image); 

#endif 

/* put the rest of your game here, of course, in different functions */ 
   return 0; 
}

only one error i fixed that might be my system only but it compiles with no errors now works nice!

reaper2k2 · Post by **reaper2k2** » Sun Jan 05, 2003 10:41 am

can we some how display this screen then and play a modfile with the modplug example but make it turn off when the screen goes out the music goes off

i had this some what working but the sound in my main program is then messed up

im asking this because i dont know if kos lets this happen every time i say turn on a s3m file then int anther sound system the next one after the s3m or mod is just static ..

wow its 341 am lol

toastman · Post by **toastman** » Sun Jan 05, 2003 10:42 am

Oh sure, let's all jump on the easy question.

reaper2k2 · Post by **reaper2k2** » Sun Jan 05, 2003 10:54 am

JUST to let you guys know its now working ive put this in mame i used SDL as i find it easyer to grasp it

thanks a million THIS is GREAT make the single game mame releases look nice

Post by **BlueCrab** » Sun Jan 05, 2003 11:06 am

You're welcome. I wish you luck.

reaper2k2 · Post by **reaper2k2** » Sun Jan 05, 2003 12:41 pm

IVE got your name in the credits in the 2ND splash screen after the first one which has now turned into a themable title screen

so its like a old skool c64 demo allmost hee

look NIIIIIIIICE

dragonsimoto · Post by **dragonsimoto** » Sun Jan 05, 2003 1:17 pm

look at the .h for the sound system your using.. Ive havent programmed dc for months but i know Dan has a s3m_init(); type function then s3m_play(file); then s3m_pause||s3m_stop()||s3m_kill(); Take a look at that... should solve your problems.

As for the splash, i did have mine for my 2d fighter i started... worked great but i believe i lost it in a repartitioning...but you got it working so good luck.

BlackAura · Post by **BlackAura** » Mon Jan 06, 2003 9:47 pm

Reaper - I made a slight typo in my code. draw_frame() should have been draw_splash().

As for the sound thing, you could use the Modplug library, and the sound system you use in MAME to play a MOD file. I have some code to do that with KOS's sound system, which you could use for the intro, then switch the KOS sound system off, and then activate the MAME sound system. That should work.

reaper2k2 · Post by **reaper2k2** » Mon Jan 06, 2003 11:44 pm

OK ill have to try get that working one time im just awake lol so just browser at the moment cygwin is turned off for the moment