SSB Test

#include <fstream>
#include <ssb.h>

bool save_tga(const char* filename, unsigned width, unsigned height, bool has_alpha, const unsigned char* data){
    // Create TGA header
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnarrowing"
    unsigned char tga_header[18] = {
        0, // ID length = no ID
        0, // Color map type = no color map (=true colors)
        2, // Image type = uncompressed true-color
        0, 0, // Color map offset = 0 bytes
        0, 0, // Color map length = 0 bytes
        0, // Color map BPP = 0 bits
        0, 0, 0, 0, // Image origin = 0/0
        width & 0xff, (width >> 8) & 0xff, // Image width = width parameter
        height & 0xff, (height >> 8) & 0xff, // Image height = height parameter
        has_alpha ? 32 : 24, // Pixel depth = has_alpha parameter
        has_alpha ? 8 : 0 // Image descriptor = bottom-up + has alpha with 8 bits (has_alpha parameter)?
    };
#pragma GCC diagnostic pop
    // Open output file
    std::ofstream file(filename, std::ios::binary);
    if(!file)
        // Couldn't create image
        return false;
    // Write header in output file
    file.write(reinterpret_cast<const char*>(tga_header), sizeof(tga_header));
    // Write data in output file
    file.write(reinterpret_cast<const char*>(data), has_alpha ? (width * height) << 2 : width * height * 3);
    // Image creation successed
    return true;
}

int main(){
    // Create BGRA image
    const int width = 704, height = 396;
    unsigned char data[(width * height) << 2] = {0};
    // Fill BGRA data
    for(unsigned long i = 0; i < sizeof(data); i+=4){
        // Half transparent green
        data[i] = 0;
        data[i+1] = 255;
        data[i+2] = 0;
        data[i+3] = 255;
    }
    // Render on image with SSB
    char warning[SSB_WARNING_LENGTH];
    ssb_renderer renderer = ssb_create_renderer(width, height, SSB_BGRA, "test.ssb", warning);
    if(renderer){
        ssb_render(renderer, data, width << 2, 2000);
        ssb_free_renderer(renderer);
    }else{
        puts(warning);
        return 1;
    }
    // Save image as TGA file
    if(!save_tga("ssb_test.tga", width, height, true, data)){
        puts("Couldn't create image!");
        return 1;
    }
    return 0;
}