add time based vector and DRM support

Kconfig

@@ -55,6 +55,14 @@ config TIME_BASED_VECTOR_LENGHT
 	  For example if set to 2 minutes the line will end where the plane be in 2 minutes,
 	  if direction and speed does not change.
 
+config VECTOR_FOLLOW_TRACK_RATE
+	bool "Time based vector follows change of track"
+	default 1
+	help
+	  Make Time based vector follows change of track of aircraft.
+	  This option will turn the vector from line into curve.
+	  This is of course be more computationaly expensive.
+
 comment "Receiver configuration"
 
 config FALLBACK_LAT
@@ -76,3 +84,70 @@ config METRIC
 	default y
 	help
 	  Show altitudes in meters instead of feet.
+
+comment "Platform dependent options"
+
+choice
+	prompt "Build target"
+	default BUILD_LINUX
+	help
+	  Select platform you want p-rad to be compiled for.
+
+config BUILD_LINUX
+	bool "Linux"
+
+config BUILD_PICO
+	bool "PI pico W"
+
+config BUILD_OTHER_UNIX
+	bool "Other Unix/Posix compatable system (NOT IMPLEMENTED)"
+endchoice
+
+
+
+if BUILD_LINUX
+
+
+choice 
+	prompt "SDL render target"
+	default SDL_TARGET_WINDOW
+	help
+	  Select where you want SDL3 to render to.
+
+config SDL_TARGET_WINDOW
+	bool "Full-Screen Window"
+	help 
+	  Render to Full-Screen Window using window system like X11 or wayland.
+
+config SDL_TARGET_KMSDRM
+	bool "Direct to DRM"
+	help
+	  Render directly to GPU using kmsdrm
+endchoice
+
+
+
+endif
+
+if BUILD_LINUX || BUILD_OTHER_UNIX
+
+config SDL_DRIVERS
+	string "Enabled SDL3 render drivers"
+	default "gpu,vulkan,opengl"
+	help
+	  Comma-speparated list of drivers,
+	  SDL will try each name, in the order listed, until one succeeds or all of them fail.
+	  leave empty and SDL will attempt to choose the best option for you,
+	  based on what is available on the your system.
+	  (I dont recommend leaving this option empty.)
+	  Available drivers can be listed by running this code:
+	  #include <SDL3/SDL.h>
+	  int main() {
+          	SDL_Init(SDL_INIT_VIDEO);
+		SDL_Log("Available renderer drivers:");
+		for (int i = 0; i < SDL_GetNumRenderDrivers(); i++) {
+    			SDL_Log("%d. %s", i + 1, SDL_GetRenderDriver(i));
+		}
+	  }
+
+endif