texture.c

    #include <stdio.h>
    #include <stdlib.h>

    typedef struct {
        unsigned char r, g, b;
    } pixel;

    int main() {
        FILE *fp;
        char buf[16];
        int w, h, max;
        pixel *image;

        fp = fopen("image.ppm", "r");
        if (fp == NULL) {
            fprintf(stderr, "Error: Could not open file\n");
            exit(1);
        }

        fgets(buf, sizeof(buf), fp);
        if (buf[0] != 'P' || buf[1] != '6') {
            fprintf(stderr, "Error: Invalid file format\n");
            exit(1);
        }

        fscanf(fp, "%d %d", &w, &h);
        fscanf(fp, "%d", &max);

        if (max != 255) {
            fprintf(stderr, "Error: Unsupported color depth\n");
            exit(1);
        }

        fgetc(fp); // skip the newline character

        image = (pixel*)malloc(w * h * sizeof(pixel));
        if (image == NULL) {
            fprintf(stderr, "Error: Out of memory\n");
            exit(1);
        }

        fread(image, sizeof(pixel), w * h, fp);
        fclose(fp);

        // Render the image using OpenGL or other graphics library
        // ...

        free(image);

        return 0;
    }