feat(video): can build without video

src/forge.c

@@ -82,6 +82,7 @@ static void reload_shader(unsigned int i) {
   shaders_update(&program, &project.fragment_shaders[i][0], i, &project);
 }
 
+#ifdef VIDEO_IN
 static void init_inputs(const StringArray *video_in, unsigned int video_size) {
   inputs.length = video_in->length;
 
@@ -97,7 +98,6 @@ static bool start_video_captures(unsigned int video_count, bool trace_fps) {
       return false;
     }
   }
-
   return true;
 }
 
@@ -108,6 +108,7 @@ static void free_video_captures(unsigned int video_count) {
     video_free(&inputs.values[i]);
   }
 }
+#endif /* VIDEO_IN */
 
 static void error_callback(int error, const char *description) {
   log_error("[GLFW] %d: %s", error, description);
@@ -177,13 +178,15 @@ void forge_run(const Parameters *params) {
     return;
   }
 
-  init_inputs(&params->video_in, params->video_size);
-
   init_context(params, project.in_count);
 
+#ifdef VIDEO_IN
+  init_inputs(&params->video_in, params->video_size);
+
   if (!start_video_captures(params->video_in.length, params->trace_fps)) {
     return;
   }
+#endif /* VIDEO_IN */
 
   midi_open(&midi, config_file_get_str(&project.config, "MIDI_HW", "hw"));
 
@@ -211,7 +214,7 @@ void forge_run(const Parameters *params) {
 
     window_use(window_output, context);
 
-    shaders_init(&program, &project, context, &inputs, false);
+    shaders_init(&program, &project, context, false);
   } else {
     window_output = NULL;
   }
@@ -223,11 +226,15 @@ void forge_run(const Parameters *params) {
 
     window_use(window_monitor, context);
 
-    shaders_init(&program, &project, context, &inputs, window_output != NULL);
+    shaders_init(&program, &project, context, window_output != NULL);
   } else {
     window_monitor = NULL;
   }
 
+#ifdef VIDEO_IN
+  shaders_link_inputs(&program, &project, &inputs);
+#endif /* VIDEO_IN */
+
   if (program.error) {
     context->stop = true;
     window_terminate();
@@ -263,7 +270,9 @@ void forge_run(const Parameters *params) {
     shaders_free_window(&program, params->output);
   }
 
+#ifdef VIDEO_IN
   free_video_captures(params->video_in.length);
+#endif /* VIDEO_IN */
 
   free_context();
 

src/shaders.c

@@ -534,8 +534,7 @@ static void use_program(const ShaderProgram *program, int i, bool output,
 }
 
 void shaders_init(ShaderProgram *program, const Project *project,
-                  const SharedContext *context, VideoCaptureArray *inputs,
-                  bool rebind) {
+                  const SharedContext *context, bool rebind) {
   if (!rebind) {
     program->error = false;
     program->last_resolution[0] = context->resolution[0];
@@ -571,12 +570,6 @@ void shaders_init(ShaderProgram *program, const Project *project,
       return;
     }
 
-    init_input(program, &project->config, inputs);
-
-    if (check_glerror(program)) {
-      return;
-    }
-
     init_framebuffers(program, &project->config);
 
     if (check_glerror(program)) {
@@ -603,6 +596,15 @@ void shaders_init(ShaderProgram *program, const Project *project,
   }
 }
 
+void shaders_link_inputs(ShaderProgram *program, const Project *project,
+                         VideoCaptureArray *inputs) {
+  init_input(program, &project->config, inputs);
+
+  if (check_glerror(program)) {
+    return;
+  }
+}
+
 void shaders_update(ShaderProgram *program, const File *fragment_shader,
                     unsigned int i, const Project *project) {
   bool result;

src/shaders.h

@@ -4,8 +4,10 @@
 #define SHADERS_H
 
 void shaders_init(ShaderProgram *program, const Project *project,
-                  const SharedContext *context, VideoCaptureArray *inputs,
-                  bool rebind);
+                  const SharedContext *context, bool rebind);
+
+void shaders_link_inputs(ShaderProgram *program, const Project *project,
+                         VideoCaptureArray *inputs);
 
 void shaders_update(ShaderProgram *program, const File *fragment_shader,
                     unsigned int i, const Project *project);

src/types.h

@@ -4,7 +4,11 @@
 #include <glad/gl.h>
 #include <hashmap.h>
 #include <linmath.h>
+#ifdef VIDEO_IN
 #include <linux/videodev2.h>
+#else
+struct v4l2_buffer {};
+#endif /* VIDEO_IN */
 #include <stdbool.h>
 #include <sys/time.h>
 #include <time.h>

src/video.c

@@ -1,3 +1,5 @@
+#ifdef VIDEO_IN
+
 #include <bsd/string.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -373,4 +375,6 @@ void video_free(const VideoCapture *video_capture) {
   if (video_capture->fd != -1) {
     close(video_capture->fd);
   }
-}
+}
+
+#endif /* VIDEO_IN */