software composite

Author: xrip

CMakeLists.txt

@@ -11,6 +11,8 @@ option(TFT "Enable TFT display" OFF)
 option(ILI9341 "Enable TFT ILI9341 display" OFF)
 option(HDMI "Enable HDMI display" OFF)
 option(TV "Enable TV composite output" OFF)
+option(SOFTTV "Enable TV soft composite output" OFF)
+
 
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 17)
@@ -34,6 +36,7 @@ add_subdirectory(drivers/vga-nextgen)
 add_subdirectory(drivers/hdmi)
 add_subdirectory(drivers/st7789)
 add_subdirectory(drivers/tv)
+add_subdirectory(drivers/tv-software)
 
 add_subdirectory(drivers/graphics)
 
@@ -77,6 +80,10 @@ ELSEIF(TV)
     target_compile_definitions(${PROJECT_NAME} PRIVATE TV)
     target_link_libraries(${PROJECT_NAME} PRIVATE tv)
     SET(BUILD_NAME "${BUILD_NAME}-TV")
+ELSEIF(SOFTTV)
+	target_compile_definitions(${PROJECT_NAME} PRIVATE SOFTTV)
+	target_link_libraries(${PROJECT_NAME} PRIVATE tv-software)
+	SET(BUILD_NAME "${BUILD_NAME}-TV-SOFT")
 ELSE()
     target_compile_definitions(${PROJECT_NAME} PRIVATE VGA)
     target_link_libraries(${PROJECT_NAME} PRIVATE vga-nextgen)

drivers/graphics/graphics.h

@@ -19,6 +19,10 @@ extern "C" {
 #ifdef TV
 #include "tv.h"
 #endif
+#ifdef SOFTTV
+#include "tv-software.h"
+#endif
+
 
 #include "font6x8.h"
 #include "font8x8.h"

drivers/tv-software/CMakeLists.txt

@@ -0,0 +1,10 @@
+add_library(tv-software INTERFACE)
+
+target_sources(tv-software INTERFACE ${CMAKE_CURRENT_LIST_DIR}/tv-software.c)
+
+target_link_libraries(tv-software INTERFACE hardware_pio hardware_clocks hardware_dma)
+
+target_include_directories(tv-software INTERFACE
+        ${CMAKE_CURRENT_LIST_DIR}
+)
+