replace generic resource embedder with const array

this avoids pulling in iostream and float parsing

cmake/generate_points_file.cmake

@@ -0,0 +1,14 @@
+set(current_dir ${CMAKE_CURRENT_LIST_DIR})
+
+function(generate_points_file infile outfile)
+  file(READ "${infile}" contents)
+  string(REGEX REPLACE "([^ \n]+) +([^ \n]+)\n" "{\\1, \\2},\n" POINTS
+                       "${contents}")
+
+  configure_file("${current_dir}/points_file.cpp.in" "${outfile}" @ONLY)
+
+  set_property(
+    DIRECTORY
+    APPEND
+    PROPERTY CMAKE_CONFIGURE_DEPENDS "${infile}")
+endfunction()

cmake/points_file.cpp.in

@@ -0,0 +1,13 @@
+// WARNING This file is auto-generated during configuration by the cmake
+// function generate_points_file. Do not manually edit as changes will be lost
+
+#include <cstddef>
+
+namespace ear {
+  namespace points_file {
+    extern const double points[][2] = {
+      @POINTS@
+    };
+    extern const size_t num_points = sizeof(points) / sizeof(points[0]);
+  }
+}

src/CMakeLists.txt

@@ -1,10 +1,9 @@
 # --- ear library ---
 
-include(embed_resource)
-embed_resource(
-  NAMESPACE ear
-  BASE_NAME resources
-  RESOURCE_FILES "${PROJECT_SOURCE_DIR}/resources/Design_5200_100_random.dat")
+include(generate_points_file)
+generate_points_file(
+  "${PROJECT_SOURCE_DIR}/resources/Design_5200_100_random.dat"
+  ${CMAKE_CURRENT_BINARY_DIR}/hoa_points_file.cpp)
 
 add_library(ear
   bs2051.cpp
@@ -32,14 +31,12 @@ add_library(ear
   object_based/polar_extent_simd.cpp
   object_based/gain_calculator_objects.cpp
   warnings.cpp
-  ${CMAKE_CURRENT_BINARY_DIR}/resources.hpp
-  ${CMAKE_CURRENT_BINARY_DIR}/resources.cpp
+  ${CMAKE_CURRENT_BINARY_DIR}/hoa_points_file.cpp
 )
 
 target_include_directories(ear
   PRIVATE
     $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/submodules/kissfft>
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}> # resources.hpp
   PUBLIC
   # Headers used from source/build location:
     $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>

src/hoa/hoa.cpp

@@ -1,26 +1,15 @@
 #include "hoa.hpp"
-#include "ear/helpers/assert.hpp"
-#include "resources.hpp"
+#include "points_file.hpp"
 
 Eigen::Matrix<double, Eigen::Dynamic, 3> ear::hoa::load_points() {
-  std::stringstream points_file;
+  Eigen::Matrix<double, Eigen::Dynamic, 3> points(points_file::num_points, 3);
 
-  ear_assert(getEmbeddedFile("Design_5200_100_random.dat", points_file),
-             "could not find embedded file Design_5200_100_random.dat, this is "
-             "probably a compilation error");
-  size_t len = 5200;
-
-  Eigen::Matrix<double, Eigen::Dynamic, 3> points(len, 3);
-  for (size_t i = 0; i < len; i++) {
-    double phi, theta;
-    points_file >> phi >> theta;
+  for (size_t i = 0; i < points_file::num_points; i++) {
+    double phi = points_file::points[i][0], theta = points_file::points[i][1];
     points(i, 0) = std::sin(theta) * std::cos(phi);
     points(i, 1) = std::sin(theta) * std::sin(phi);
     points(i, 2) = std::cos(theta);
   }
 
-  ear_assert(points_file.good(),
-             "failure when reading HOA points from embedded file");
-
   return points;
 }

src/hoa/points_file.hpp

@@ -0,0 +1,11 @@
+#pragma once
+#include <cstddef>
+
+namespace ear {
+  namespace points_file {
+    // defined in autogenerated .cpp file from
+    // resources/Design_5200_100_random.dat
+    extern const double points[][2];
+    extern const size_t num_points;
+  }  // namespace points_file
+}  // namespace ear