embed shaders in binary

vis/CMakeLists.txt

@@ -1,8 +1,4 @@
-add_custom_target(resources DEPENDS resources_output)
-add_custom_command(
-    OUTPUT resources_output
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/res ${CMAKE_CURRENT_BINARY_DIR}/res
-    COMMENT "Copying Resources")
+add_subdirectory(shaders)
 
 add_executable(vis
     src/main.cpp
@@ -15,6 +11,6 @@ target_link_libraries(vis
     imgui
     eigen
     nlohmann_json
+    shaders
     )
 target_include_directories(vis PUBLIC include)
-add_dependencies(vis resources)

vis/include/gl/shader.hpp

@@ -23,6 +23,17 @@ public:
         // todo throw if compile failed
     }
 
+    explicit Shader(const std::string_view &src) {
+        id = glCreateShader(mode);
+
+        const char *str = src.data();
+        const GLint length = (GLint) src.length();
+        glShaderSource(id, 1, &str, &length);
+        glCompileShader(id);
+
+        // todo throw if compile failed
+    }
+
     explicit Shader(std::ifstream source)
         : Shader(std::string(
         std::istreambuf_iterator<char>(source),

vis/shaders/CMakeLists.txt

@@ -0,0 +1,4 @@
+add_embed_library(shaders
+    main-4d.vert.glsl
+    main.vert.glsl
+    main.frag.glsl)

vis/src/render/pointrender.hpp

@@ -7,6 +7,8 @@
 
 #include <fstream>
 
+#include <shaders.hpp>
+
 struct State {
     Eigen::Vector4f bg{0.16, 0.16, 0.16, 1.00};
     Eigen::Vector4f fg{0.71, 0.53, 0.94, 1.00};
@@ -39,8 +41,8 @@ template<typename V_=Eigen::Vector4f>
 struct PointRenderer {
     using Vertex = V_;
 
-    VertexShader vs{std::ifstream("res/shaders/main.vert.glsl")};
-    FragmentShader fs{std::ifstream("res/shaders/main.frag.glsl")};
+    VertexShader vs{shaders::main_vert_glsl};
+    FragmentShader fs{shaders::main_frag_glsl};
 
     Program pgm{vs, fs};