impeller/entity/shaders/texture_fill.frag

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

precision mediump float;

#include <impeller/constants.glsl>
#include <impeller/types.glsl>

uniform f16sampler2D texture_sampler;

uniform FragInfo {
  float alpha;
}
frag_info;

in highp vec2 v_texture_coords;

out f16vec4 frag_color;

void main() {
  f16vec4 sampled =
      texture(texture_sampler, v_texture_coords, float16_t(kDefaultMipBias));
  frag_color = sampled * float16_t(frag_info.alpha);
}