GRRLIB/examples/bitmap_fx/source/main.c

/*===========================================
        GRRLIB (GX Version)
        - Example Code -

        How To use Bitmap FX
============================================*/
#include <grrlib.h>

#include <stdlib.h>
#include <wiiuse/wpad.h>

#include "pirate_png.h"
#include "font1_png.h"


int main() {
    s8 page = 0;

    // Font texture
    GRRLIB_texImg *text_font1 = GRRLIB_LoadTexture(font1_png);
    GRRLIB_InitTileSet(text_font1, 32, 36, 32);

    // Load the original texture and create empty texture of the same size as the original one
    GRRLIB_texImg *tex_pirate   = GRRLIB_LoadTexture(pirate_png);
    GRRLIB_texImg *tex_gray     = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_sepia    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_invert   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_blur1    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_blur2    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_blur3    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_blur4    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_blur5    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_blur6    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_pixel1   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_pixel2   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_pixel3   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_pixel4   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_pixel5   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_pixel6   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_scatter1 = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_scatter2 = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_scatter3 = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_scatter4 = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_scatter5 = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_scatter6 = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_fliph    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_flipv    = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);
    GRRLIB_texImg *tex_fliphv   = GRRLIB_CreateEmptyTexture(tex_pirate->w, tex_pirate->h);

    // Let's precalculate the grayscale texture
    GRRLIB_BMFX_Grayscale(tex_pirate, tex_gray);
    GRRLIB_FlushTex(tex_gray);

    // Let's precalculate the sepia texture
    GRRLIB_BMFX_Sepia(tex_pirate, tex_sepia);
    GRRLIB_FlushTex(tex_sepia);

    // Let's precalculate the inverted color texture
    GRRLIB_BMFX_Invert(tex_pirate, tex_invert);
    GRRLIB_FlushTex(tex_invert);

    // Let's precalculate 6 differents blur texture with 6 differents blur factor
    GRRLIB_BMFX_Blur(tex_pirate, tex_blur1, 1);
    GRRLIB_FlushTex(tex_blur1);
    GRRLIB_BMFX_Blur(tex_pirate, tex_blur2, 2);
    GRRLIB_FlushTex(tex_blur2);
    GRRLIB_BMFX_Blur(tex_pirate, tex_blur3, 3);
    GRRLIB_FlushTex(tex_blur3);
    GRRLIB_BMFX_Blur(tex_pirate, tex_blur4, 4);
    GRRLIB_FlushTex(tex_blur4);
    GRRLIB_BMFX_Blur(tex_pirate, tex_blur5, 5);
    GRRLIB_FlushTex(tex_blur5);
    GRRLIB_BMFX_Blur(tex_pirate, tex_blur6, 6);
    GRRLIB_FlushTex(tex_blur6);

    // Let's precalculate 6 differents pixelate texture with 6 differents pixelate factor
    GRRLIB_BMFX_Pixelate(tex_pirate, tex_pixel1, 1);
    GRRLIB_FlushTex(tex_pixel1);
    GRRLIB_BMFX_Pixelate(tex_pirate, tex_pixel2, 2);
    GRRLIB_FlushTex(tex_pixel2);
    GRRLIB_BMFX_Pixelate(tex_pirate, tex_pixel3, 3);
    GRRLIB_FlushTex(tex_pixel3);
    GRRLIB_BMFX_Pixelate(tex_pirate, tex_pixel4, 4);
    GRRLIB_FlushTex(tex_pixel4);
    GRRLIB_BMFX_Pixelate(tex_pirate, tex_pixel5, 5);
    GRRLIB_FlushTex(tex_pixel5);
    GRRLIB_BMFX_Pixelate(tex_pirate, tex_pixel6, 6);
    GRRLIB_FlushTex(tex_pixel6);

    // Let's precalculate 6 differents pixelate texture with 6 differents pixelate factor
    GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter1, 2);
    GRRLIB_FlushTex(tex_pixel1);
    GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter2, 4);
    GRRLIB_FlushTex(tex_pixel2);
    GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter3, 6);
    GRRLIB_FlushTex(tex_pixel3);
    GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter4, 8);
    GRRLIB_FlushTex(tex_pixel4);
    GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter5, 10);
    GRRLIB_FlushTex(tex_pixel5);
    GRRLIB_BMFX_Scatter(tex_pirate, tex_scatter6, 12);
    GRRLIB_FlushTex(tex_pixel6);

    // Let's precalculate for flipping the texture
    GRRLIB_BMFX_FlipH(tex_pirate, tex_fliph);
    GRRLIB_FlushTex(tex_fliph);
    GRRLIB_BMFX_FlipV(tex_pirate, tex_flipv);
    GRRLIB_FlushTex(tex_flipv);
    GRRLIB_BMFX_FlipV(tex_fliph, tex_fliphv);
    GRRLIB_FlushTex(tex_fliphv);

    GRRLIB_Init();
    WPAD_Init();

    while(1) {
        WPAD_ScanPads();
        const u32 wpaddown = WPAD_ButtonsDown(0);

        GRRLIB_FillScreen(0xFFFFFFFF);

        switch(page)
        {
            case 1:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "GRAYSCALE FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_gray, 0, 1, 1, 0xFFFFFFFF);
                break;
            case 2:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "SEPIA FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_sepia, 0, 1, 1, 0xFFFFFFFF);
                break;
            case 3:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "INVERT FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_invert, 0, 1, 1, 0xFFFFFFFF);
                break;
            case 4:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "FLIPH AND FLIPV FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_fliph, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60, tex_flipv, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*3, 60, tex_fliphv, 0, 1, 1, 0xFFFFFFFF);
                break;
            case 5:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "BLUR FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_blur1, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60, tex_blur2, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*3, 60, tex_blur3, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10, 60+tex_pirate->h*1, tex_blur4, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60+tex_pirate->h*1, tex_blur5, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60+tex_pirate->h*1, tex_blur6, 0, 1, 1, 0xFFFFFFFF);
                break;
            case 6:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "PIXELATE FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_pixel1, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60, tex_pixel2, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*3, 60, tex_pixel3, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10, 60+tex_pirate->h*1, tex_pixel4, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60+tex_pirate->h*1, tex_pixel5, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60+tex_pirate->h*1, tex_pixel6, 0, 1, 1, 0xFFFFFFFF);
                break;
            case 7:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "SCATTER FX");

                GRRLIB_DrawImg(10, 60, tex_pirate, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60, tex_scatter1, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60, tex_scatter2, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*3, 60, tex_scatter3, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10, 60+tex_pirate->h*1, tex_scatter4, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*1, 60+tex_pirate->h*1, tex_scatter5, 0, 1, 1, 0xFFFFFFFF);
                GRRLIB_DrawImg(10+tex_pirate->w*2, 60+tex_pirate->h*1, tex_scatter6, 0, 1, 1, 0xFFFFFFFF);
                break;
            default:
                GRRLIB_Printf(10, 10, text_font1, 0X000000FF, 1, "WELCOME TO THE");
                GRRLIB_Printf(10, 40, text_font1, 0X000000FF, 1, "GRRLIB FX DEMO.");
                GRRLIB_Printf(10, 80, text_font1, 0X000000FF, 1, "TO QUIT PRESS THE");
                GRRLIB_Printf(10, 120, text_font1, 0X000000FF, 1, "HOME BUTTON.");
                GRRLIB_Printf(10, 160, text_font1, 0X000000FF, 1, "USE + OR - TO MOVE");
                GRRLIB_Printf(10, 200, text_font1, 0X000000FF, 1, "ACROSS PAGES.");
        }

        GRRLIB_Render();
        if(wpaddown & WPAD_BUTTON_HOME) {
            break;
        }
        if(wpaddown & WPAD_BUTTON_MINUS) {
            page--;
            if(page < 0) page = 7;
        }
        if(wpaddown & WPAD_BUTTON_PLUS) {
            page++;
            if(page > 7) page = 0;
        }
    }
    GRRLIB_FreeTexture(tex_pirate);
    GRRLIB_FreeTexture(tex_gray);
    GRRLIB_FreeTexture(tex_sepia);
    GRRLIB_FreeTexture(tex_invert);
    GRRLIB_FreeTexture(tex_fliph);
    GRRLIB_FreeTexture(tex_flipv);
    GRRLIB_FreeTexture(tex_fliphv);
    GRRLIB_FreeTexture(tex_blur1);
    GRRLIB_FreeTexture(tex_blur2);
    GRRLIB_FreeTexture(tex_blur3);
    GRRLIB_FreeTexture(tex_blur4);
    GRRLIB_FreeTexture(tex_blur5);
    GRRLIB_FreeTexture(tex_blur6);
    GRRLIB_FreeTexture(tex_pixel1);
    GRRLIB_FreeTexture(tex_pixel2);
    GRRLIB_FreeTexture(tex_pixel3);
    GRRLIB_FreeTexture(tex_pixel4);
    GRRLIB_FreeTexture(tex_pixel5);
    GRRLIB_FreeTexture(tex_pixel6);
    GRRLIB_FreeTexture(tex_scatter1);
    GRRLIB_FreeTexture(tex_scatter2);
    GRRLIB_FreeTexture(tex_scatter3);
    GRRLIB_FreeTexture(tex_scatter4);
    GRRLIB_FreeTexture(tex_scatter5);
    GRRLIB_FreeTexture(tex_scatter6);
    GRRLIB_Exit(); // Be a good boy, clear the memory allocated by GRRLIB
    return 0;
}