#version 460

in vec2 f_texcoord;
layout(packed, binding=0) buffer image {
	uint color[];
}  ; // No local name for this one

out vec4 outcolor;

uniform uint width;
uniform uint height;

vec3 extract_color(uint raw_color){
	vec3 ogl_color;
	ogl_color.r = ((raw_color & 0x000000ff) >> 0) / 255.0f;
	ogl_color.g = ((raw_color & 0x0000ff00) >> 8) / 255.0f;
	ogl_color.b = ((raw_color & 0x00ff0000) >> 16) / 255.0f;
	return ogl_color;
}

void main(void) {
	uint tex_x = uint(f_texcoord.x * float(width));
	uint tex_y = uint(f_texcoord.y * float(height));
	if(tex_y >= height)
		tex_y = height - 1;
	uint pixnum = tex_y * width + tex_x;
	outcolor.rgb = extract_color(color[pixnum]);
	outcolor.a = 1.0f;
}