SDL LoadBMP Problem

[RandomDever]

Code: Select all

SDL_Surface *image;
image = LoadBMP("mount.bmp");

But every time I compile it it says:
error C3861: 'LoadBMP': identifier not found
WTF?

[Bakkon]

Code: Select all

SDL_Surface *image;
image = SDL_LoadBMP("mount.bmp");

[MarauderIIC]

You might consider SDL_LoadPNG(), but you need sdl_image headers and stuff.

[eatcomics]

PNGs are a better format. I would definately advise you to at least get the SDL_image stuff... Just follow these instructions if you havn't:
http://lazyfoo.net/SDL_tutorials/lesson03/index.php

[RandomDever]

I am only testing (I normally use PNG) and SDL_LoadBMP doesn't work.
BTW Where does the BMP have to be for it to load and what X,Y Coord?

[eatcomics]

The bmp has to be in the same folder, unless you tell the compiler its somewhere else... but it'll be easier just to put it in the project folder

[RandomDever]

ok everything loads by my bmp isn't showing up.

Code: Select all

#include "SDL.h"
#include "SDL_image.h" 
#include <string> 

void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination )
{
    //Make a temporary rectangle to hold the offsets
    SDL_Rect offset;
    
    //Give the offsets to the rectangle
    offset.x = x;
    offset.y = y;
    
    //Blit the surface
    SDL_BlitSurface( source, NULL, destination, &offset );
}


int main( int argc, char* args[] ) 
{ 
	//Start SDL
	SDL_Init( SDL_INIT_EVERYTHING ); 

	SDL_Surface *image;
	image = IMG_Load("mount.bmp");
	SDL_Surface *buffer;
	bool fullscreen = false;
	if ( fullscreen == true ) // For fullscreen
	buffer = SDL_SetVideoMode( 640, 480, 32, SDL_SWSURFACE |
	SDL_FULLSCREEN );
	else // For windowed
	buffer = SDL_SetVideoMode( 640, 480, 32, SDL_SWSURFACE );
	// Set window caption
	SDL_WM_SetCaption( "My Program : )", NULL );
/* End Initialization */

/* Game loop and such would go here */

apply_surface(20, 20, image, buffer );
SDL_Flip(buffer);
while(1){}
/* Free up space afterwards */

SDL_FreeSurface( buffer );

	//Quit SDL
	SDL_Quit();
	return 0;
} 

[Bakkon]

Works fine for me. Make sure "mount.bmp" is in the same directory as your executable.

Few other problems you have though. SDL_Quit frees buffer for you, so you shouldn't do that manually, but you should be freeing image. Also, use SDL_Delay(milliseconds) until you've learned how to break out of your infinite loop.

[RandomDever]

Here's the image:

Sorry when uploaded it converted into JPEG. But it's 60 x 60 and I'm using VC++ 2008

[MarauderIIC]

I am only testing normally PNG and SDL_LoadBMP doesn't work.

? That's because you have to load a bmp with it.

[dandymcgee]

I am only testing normally PNG and SDL_LoadBMP doesn't work.

? That's because you have to load a bmp with it.

I think he meant:

I am only testing normally [with a bitmap]. SDL_LoadBMP doesn't work with PNG.

[RandomDever]

OK

Code: Select all

#include "SDL.h"
#include "SDL_image.h" 
#include <string> 

void apply_surface( int x, int y, SDL_Surface* source, SDL_Surface* destination )
{
    //Make a temporary rectangle to hold the offsets
    SDL_Rect offset;
    
    //Give the offsets to the rectangle
    offset.x = x;
    offset.y = y;
    
    //Blit the surface
    SDL_BlitSurface( source, NULL, destination, &offset );
}


int main( int argc, char* args[] ) 
{ 
	//Start SDL
	SDL_Init( SDL_INIT_EVERYTHING ); 

	SDL_Surface *image;
	image = IMG_Load("mount.bmp");
	SDL_Surface *buffer;
	bool fullscreen = false;
	if ( fullscreen == true ) // For fullscreen
	buffer = SDL_SetVideoMode( 640, 480, 32, SDL_SWSURFACE |
	SDL_FULLSCREEN );
	else // For windowed
	buffer = SDL_SetVideoMode( 640, 480, 32, SDL_SWSURFACE );
	// Set window caption
	SDL_WM_SetCaption( "My Program : )", NULL );
/* End Initialization */

/* Game loop and such would go here */

apply_surface(60, 60, image, buffer );
SDL_Flip(buffer);
SDL_Delay(20000);
/* Free up space afterwards */

SDL_FreeSurface( image );

	//Quit SDL
	SDL_Quit();
	return 0;
} 

Mount.bmp:

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/BfqzA2QSVzc&hl ... ram><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/BfqzA2QSVzc&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/youtube]
I'm using VC++ 2008 WTF is wrong?!?!?!?!?!?!?!?!?!

[JaxDragon]

Put the image in your Debug folder. Look at my image below.

[RandomDever]

View above post

[MarauderIIC]

Code: Select all

	SDL_Surface *image;
	image = IMG_Load("mount.bmp");
        if (!image)
            return -1;
	SDL_Surface *buffer;

Try that (or other output) to make sure that the image is loading correctly. Nothing in your code jumps out at me as being wrong. You might try applying the surface to 0,0 too, just to make sure :P

Also check the return value that BlitSurface gives.