Use Graphics Output Protocol to draw a rectangle

[rrq/jonasforth.git] / uefi.f

diff --git a/uefi.f b/uefi.f
index 03587a8f27d771bc3f3a646f2a0b12473b5b73b1..91ea453b8f2fab82b970125f28902ee7ed4840c5 100644 (file)
--- a/uefi.f
+++ b/uefi.f
@@ -2,6 +2,18 @@
 : ConOut.OutputString ConOut 8 + @ ;
 : ConOut.OutputString() ConOut SWAP ConOut.OutputString EFICALL2 ;
 
+: BootServices SystemTable 96 + @ ;
+: BootServices.LocateProtocol BootServices 320 + @ ;
+: BootServices.LocateProtocol(GOP)
+  HERE @ 5348063987722529246 , 7661046075708078998 , \ *Protocol = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
+  0 \ *Registration
+  HERE @ 0 , \ **Interface
+  BootServices.LocateProtocol EFICALL3 DROP
+  HERE @ 8 - @ \ *Interface
+  ;
+: GOP.Blt BootServices.LocateProtocol(GOP) 16 + @ ;
+: GOP.SetMode BootServices.LocateProtocol(GOP) 8 + @ ;
+
 \ Store a null-terminated UTF-16 string HERE, and return a pointer to its buffer
 \ at runtime.
 : UTF16"
@@ -14,4 +26,15 @@
   0 C, 0 C, \ Null terminator
   ;
 
-UTF16" Hello UEFI!" ConOut.OutputString()
+  BootServices.LocateProtocol(GOP) \ *This
+  HERE @ 255 C, 0 C, 0 C, 0 C, \ *BltBuffer = single blue pixel
+  0 \ BltOperation = EfiBltVideoFill
+  0 \ SourceX
+  0 \ SourceY
+  100 \ DestinationX
+  200 \ DestinationY
+  400 \ Width
+  20 \ Height
+  0 \ Delta (unused)
+GOP.Blt EFICALL10
+.U NEWLINE