docs: sample project

src/forge.c

@@ -79,7 +79,7 @@ static void init_context(const Parameters *params, unsigned int in_count) {
 static void free_context() { shared_close_context(context); }
 
 static void reload_shader(unsigned int i) {
-  shaders_update(&program, &project.fragment_shaders[i][0], i);
+  shaders_update(&program, &project.fragment_shaders[i][0], i, &project);
 }
 
 static void init_inputs(const StringArray *video_in, unsigned int video_size) {

src/shaders.c

@@ -458,15 +458,15 @@ void shaders_init(ShaderProgram *program, const Project *project,
   }
 }
 
-void shaders_update(const ShaderProgram *program, const File *fragment_shader,
-                    unsigned int i) {
+void shaders_update(ShaderProgram *program, const File *fragment_shader,
+                    unsigned int i, const Project *project) {
   bool result;
 
   result = compile_shader(program->fragment_shaders[i], fragment_shader->path,
                           fragment_shader->content);
 
   if (result) {
-    glLinkProgram(program->programs[i]);
+    init_single_program(program, i, &project->config, &project->state_config);
 
     log_info("Program %d updated", i + 1);
   }

src/shaders.h

@@ -7,8 +7,8 @@ void shaders_init(ShaderProgram *program, const Project *project,
                   const SharedContext *context, VideoCaptureArray *inputs,
                   bool rebind);
 
-void shaders_update(const ShaderProgram *program, const File *fragment_shader,
-                    unsigned int i);
+void shaders_update(ShaderProgram *program, const File *fragment_shader,
+                    unsigned int i, const Project *project);
 
 void shaders_compute(ShaderProgram *program, const SharedContext *context,
                      bool monitor, bool output_only);