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https://github.com/knightfox75/nds_nflib.git
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151db13cc0
- Creative Commons (except for CC0) shouldn't be used for code: https://creativecommons.org/faq/#can-i-apply-a-creative-commons-license-to-software MIT has the same spirit as the CC-BY license. - CC-BY has been retained for the assets included in the repository. - Also, the years were wrong, this library was started in 2009. - Make all examples use the CC0 license.
111 lines
2.0 KiB
C
111 lines
2.0 KiB
C
// SPDX-License-Identifier: CC0-1.0
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//
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// SPDX-FileContributor: NightFox & Co., 2009-2011
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/*
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-------------------------------------------------
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NightFox's Lib Template
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Ejemplo graficos en modo BITMAP de 16bits
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Requiere DevkitARM
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Requiere NightFox's Lib
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Codigo por NightFox
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http://www.nightfoxandco.com
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Inicio 10 de Octubre del 2009
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-------------------------------------------------
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*/
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/*
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-------------------------------------------------
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Includes
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-------------------------------------------------
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*/
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// Includes C
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#include <stdio.h>
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// Includes propietarios NDS
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#include <nds.h>
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// Includes librerias propias
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#include <nf_lib.h>
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/*
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-------------------------------------------------
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Main() - Bloque general del programa
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-------------------------------------------------
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*/
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int main(int argc, char **argv) {
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// Inicializa el motor 2D en modo BITMAP
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NF_Set2D(0, 5); // Modo 2D_5 en ambas pantallas
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NF_Set2D(1, 5);
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// Inicializa los fondos en BITMAP
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NF_InitBitmapBgSys(0, 1);
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NF_InitBitmapBgSys(1, 1);
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// Variables RGB
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u8 r = 0;
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u8 g = 0;
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u8 b = 0;
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// Calcula el valor RGB
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u16 rgb = 0;
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// Direccion en VRAM
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u32 adress = 0;
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// Otras
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s16 x = 0;
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s16 y = 0;
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// Rellena la pantalla
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for (y = 0; y < 256; y ++) {
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for (x = 0; x < 256; x ++) {
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// Calcula el nuevo color
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r ++;
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if (r > 31) {
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r = 0;
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g ++;
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if (g > 31) {
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g = 0;
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b ++;
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if (b > 31) b = 0;
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}
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}
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// Calcula el valor RGB (Alpha + RGB555)
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rgb = ((r)|((g) << 5)|((b) << 10)|(BIT(15)));
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// Calcula la posicion donde se escribira en la VRAM (Banco A, modo bitmap, pantalla superior)
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adress = (0x06000000 + (((y << 8) + x) << 1));
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// Escribe el valor
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*((u16*)adress) = rgb;
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// Calcula la posicion donde se escribira en la VRAM (Banco C, modo bitmap, pantalla inferior)
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adress = (0x06200000 + (((x << 8) + y) << 1));
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// Escribe el valor
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*((u16*)adress) = rgb;
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}
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}
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// Bucle (repite para siempre)
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while(1) {
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swiWaitForVBlank(); // Espera al sincronismo vertical
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}
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return 0;
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}
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