graphics/bitmap/24bit-color/source/main.c

/*
 Hello World example made by Aurelio Mannara for libctru
 This code was modified for the last time on: 12/13/2014 01:00 UTC+1
 
 This wouldn't be possible without the amazing work done by:
 -Smealum
 -fincs
 -WinterMute
 -yellows8
 -plutoo
 -mtheall
 -Many others who worked on 3DS and I'm surely forgetting about
*/
 
#include <3ds.h>
#include <stdio.h>
#include <string.h>
 
//This include a header containing definitions of our image
#include "brew_bgr.h"
 
int main(int argc, char **argv)
{
 gfxInitDefault();
 
 //Initialize console on top screen. Using NULL as the second argument tells the console library to use the internal console structure as current one
 consoleInit(GFX_TOP, NULL);
 
 printf("Why so sad Smealum? We can haz 3DS homebrew!");
 
 printf("\x1b[21;16HPress Start to exit.");
 
 //We don't need double buffering in this example. In this way we can draw our image only once on screen.
 gfxSetDoubleBuffering(GFX_BOTTOM, false);
 
 //Get the bottom screen's frame buffer
 u8* fb = gfxGetFramebuffer(GFX_BOTTOM, GFX_LEFT, NULL, NULL);
 
 //Copy our image in the bottom screen's frame buffer
 memcpy(fb, brew_bgr, brew_bgr_size);
 
 // Main loop
 while (aptMainLoop())
 {
 //Scan all the inputs. This should be done once for each frame
 hidScanInput();
 
 //hidKeysDown returns information about which buttons have been just pressed (and they weren't in the previous frame)
 u32 kDown = hidKeysDown();
 
 if (kDown & KEY_START) break; // break in order to return to hbmenu
 
 // Flush and swap framebuffers
 gfxFlushBuffers();
 gfxSwapBuffers();
 
 //Wait for VBlank
 gspWaitForVBlank();
 }
 
 // Exit services
 gfxExit();
 return 0;
}