# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("$flutter_root/shell/config.gni")

template("shell_gpu_configuration") {
  assert(defined(invoker.enable_software),
         "Caller must declare if the Software backend must be enabled.")
  assert(defined(invoker.enable_vulkan),
         "Caller must declare if the Vulkan backend must be enabled.")
  assert(defined(invoker.enable_gl),
         "Caller must declare if the Open GL backend must be enabled.")

  source_set(target_name) {
    # vulkan_backend_enabled = shell_enable_vulkan
    # gl_backend_enabled = !is_fuchsia
    # software_backend_enabled = true

    sources = []

    gpu_dir = "$flutter_root/shell/gpu"

    if (invoker.enable_software) {
      sources += [
        "$gpu_dir/gpu_surface_software.cc",
        "$gpu_dir/gpu_surface_software.h",
      ]
    }

    if (invoker.enable_gl) {
      sources += [
        "$gpu_dir/gpu_surface_gl.cc",
        "$gpu_dir/gpu_surface_gl.h",
      ]
    }

    if (invoker.enable_vulkan) {
      sources += [
        "$gpu_dir/gpu_surface_vulkan.cc",
        "$gpu_dir/gpu_surface_vulkan.h",
      ]
    }

    deps = [
      "$flutter_root/common",
      "$flutter_root/flow",
      "$flutter_root/fml",
      "$flutter_root/shell/common",
      "$flutter_root/synchronization",
      "//third_party/skia",
    ]

    if (invoker.enable_vulkan || invoker.enable_gl) {
      deps += [ "//third_party/skia:gpu" ]
    }

    if (invoker.enable_vulkan) {
      deps += [ "$flutter_root/vulkan" ]
    }
  }
}