// Fragment Shader – file "minimal.frag"
 
layout(location = 1)in vec2 in_UV;
uniform SAMPLER_TYPE g_tex2DTest;

layout(location = 0) out vec4 out_Color;
 
void main(void)
{
    vec2 TexSize;

	TexSize = vec2(textureSize(g_tex2DTest, 0));
	vec4 texel0 = vec4(texelFetch(g_tex2DTest, ivec2(in_UV*TexSize), 0));

	TexSize = vec2(textureSize(g_tex2DTest, 2));
	vec4 texel1 = vec4(texelFetch(g_tex2DTest, ivec2(in_UV*TexSize), 2));

	TexSize = vec2(textureSize(g_tex2DTest, 4));
	vec4 texel2 = vec4(texelFetch(g_tex2DTest, ivec2(in_UV*TexSize), 4));

	TexSize = vec2(textureSize(g_tex2DTest, 5));
	vec4 texel3 = vec4(texelFetch(g_tex2DTest, ivec2(in_UV*TexSize), 5));

	if( in_UV.x < 0.5 && in_UV.y < 0.5 )
		out_Color = texel0 / 127.f;
	else if( in_UV.x > 0.5 && in_UV.y < 0.5 )
		out_Color = texel1 / 127.f;
	else if( in_UV.x < 0.5 && in_UV.y > 0.5 )
		out_Color = texel2 / 127.f;
	else
		out_Color = texel3 / 127.f;
}