[Piglit] [PATCH 2/2] arb_shader_stencil_export: Compare all values

[Neil Roberts]

Ben Widawsky <benjamin.widawsky at intel.com> writes:

> -	glReadPixels(0, 0, 3, 1, GL_STENCIL_INDEX, GL_FLOAT, p);
> +	glReadPixels(0, 0, 256, 256, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, p);
>  	piglit_present_results();
>  
>  	/* we hardcode 129 in the shader */
> -	if (p[0] != 129)
> -		pass = GL_FALSE;
> -	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +	for (i = 0; i < 256 * 256; i++)
> +		if (p[i] != 129)
> +			return PIGLIT_FAIL;

I think you could use piglit_probe_rect_stencil here if you wanted to
make this a bit simpler. That way it would also report the position if
it finds a difference.

Regards,
- Neil