Added import cmake file

picovga.cmake

@@ -1,6 +1,11 @@
 # This file should be included in your project to use the picovga library
 # the PICOVGA_PATH variable should be set to the root of the picovga project directory
 
+if (DEFINED ENV{PICOVGA_PATH} AND (NOT PICOVGA_PATH))
+    set(PICOVGA_PATH $ENV{PICOVGA_PATH})
+    message("Using PICOVGA_PATH from environment ('${PICOVGA_PATH}')")
+endif ()
+
 # The macro add_picovga adds the picovga path references to the specified project.
 # PICOVGA_PATH must be set to the root of the picovga project directory
 macro(add_picovga project)

picovga_import.cmake

@@ -0,0 +1,28 @@
+# This is a copy of <PICOVGA_PATH>/picovga_import.cmake
+
+# This can be dropped into an external project to help locate the PicoVGA SDK
+# It should be include()ed prior to project()
+
+if (DEFINED ENV{PICOVGA_PATH} AND (NOT PICOVGA_PATH))
+    set(PICOVGA_PATH $ENV{PICOVGA_PATH})
+    message("Using PICOVGA_PATH from environment ('${PICOVGA_PATH}')")
+endif ()
+
+set(PICOVGA_PATH "${PICOVGA_PATH}" CACHE PATH "Path to the PicoVGA Library")
+
+if (NOT PICOVGA_PATH)
+    message(FATAL_ERROR "PicoVGA location was not specified. Please set PICOVGA_PATH.")
+endif ()
+
+if (NOT EXISTS ${PICOVGA_PATH})
+    message(FATAL_ERROR "Directory '${PICOVGA_PATH}' not found")
+endif ()
+
+set(PICOVGA_CMAKE_FILE ${PICOVGA_PATH}/picovga.cmake)
+if (NOT EXISTS ${PICOVGA_CMAKE_FILE})
+    message(FATAL_ERROR "Directory '${PICOVGA_PATH}' does not appear to contain the PicoVGA library")
+endif ()
+
+set(PICOVGA_PATH ${PICOVGA_PATH} CACHE PATH "Path to the PicoVGA library" FORCE)
+
+include(${PICOVGA_CMAKE_FILE})

src/util/print.h

@@ -28,6 +28,8 @@
 
 // compose PC color
 #define PC_COLOR(bg,fg) (((bg)<<4)|(fg))
+#define PC_FGCOLOR(color) ((color) & 0b1111)  // Added by WV
+#define PC_BGCOLOR(color) ((color) >> 4)    // Added by WV
 
 // ASCII characters
 #define CHAR_CR	'\r'