GRRLIB/examples/compositing/source/main.c

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/*===========================================
NoNameNo Compositing Sample Code
============================================*/
#include <grrlib.h>
#include <stdlib.h>
#include <wiiuse/wpad.h>
#include "gfx/font3d.h"
int main() {
float rot=0;
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float i;
int circsize=150;
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char text[]="GRRLIB ROXX ";
GRRLIB_Init();
WPAD_Init();
GRRLIB_texImg *tex_font = GRRLIB_LoadTexture(font3d);
GRRLIB_InitTileSet(tex_font, 64, 64, 32);
GRRLIB_SetHandle(tex_font, tex_font->tilew/2, tex_font->tileh+circsize);
GRRLIB_texImg *tex_screen = GRRLIB_CreateEmptyTexture(rmode->fbWidth,rmode->efbHeight);
GRRLIB_Settings.antialias = true;
while(1) {
WPAD_ScanPads();
if(WPAD_ButtonsDown(0) & WPAD_BUTTON_HOME) exit(0);
// we say that we will want to capture to a texture all the following
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GRRLIB_CompoStart();
for(i=0; i<360; i+=30) {
// We draw some letters
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GRRLIB_DrawTile((rmode->fbWidth/2)-(tex_font->tilew/2), (rmode->efbHeight/2)-(tex_font->tileh+circsize), tex_font, rot+i, 1, 1, 0xFFFFFFFF, text[(int)(i/30)]-32);
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}
// we say we want to capture now, (the buffer will be cleared after the capture)
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GRRLIB_CompoEnd(0, 0, tex_screen);
rot-=0.6;
// we now draw 3 times the captured buffer playing with color
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GRRLIB_DrawImg(0, 0, tex_screen, 0, 1, 1, 0xFF00FFFF);
GRRLIB_DrawImg(50, 50, tex_screen, 0, 1, 1, 0xFFFF00FF);
GRRLIB_DrawImg(100, 100, tex_screen, 0, 1, 1, 0xFFFFFFFF);
GRRLIB_Render();
}
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GRRLIB_FreeTexture(tex_screen);
GRRLIB_FreeTexture(tex_font);
GRRLIB_Exit(); // Be a good boy, clear the memory allocated by GRRLIB
exit(0);
}