#!amber

# Copyright 2022 Google LLC.
# Copyright 2022 The Khronos Group Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

SHADER vertex vert_shader PASSTHROUGH

SHADER fragment frag_shader GLSL
#version 430
layout(location = 0) out vec4 color_out;
uniform layout(set=0, binding=0) sampler2DShadow tex;
void main()
{
    // Sample border color of opaque white which makes the depth comparison 0.5 > 1.0 false.
    color_out = vec4(texture(tex, vec3(2.0, 2.0, 0.5)), 0.0, 0.0, 1.0);
}
END

IMAGE texture FORMAT D32_SFLOAT DIM_2D WIDTH 32 HEIGHT 32 FILL 0.0
IMAGE framebuffer FORMAT R8G8B8A8_UNORM DIM_2D WIDTH 32 HEIGHT 32

SAMPLER sampler_float_opaque_white \
  ADDRESS_MODE_U clamp_to_border \
  ADDRESS_MODE_V clamp_to_border \
  BORDER_COLOR float_opaque_white \
  COMPARE on \
  COMPARE_OP greater

PIPELINE graphics pipeline_float_opaque_white
  ATTACH vert_shader
  ATTACH frag_shader
  BIND BUFFER texture AS combined_image_sampler SAMPLER sampler_float_opaque_white DESCRIPTOR_SET 0 BINDING 0
  FRAMEBUFFER_SIZE 32 32
  BIND BUFFER framebuffer AS color LOCATION 0
END

RUN pipeline_float_opaque_white DRAW_RECT POS 0 0 SIZE 32 32

EXPECT framebuffer IDX 0 0 SIZE 32 32 EQ_RGBA 0 0 0 255