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thechaingamer
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ada-git-code

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X, Y : Integer) return UInt32
is
Off : constant UInt32 := UInt32 (X + Buffer.Width * Y);
begin
case Buffer.Color_Mode is
when ARGB8888 =>
return 4 * Off;
when RGB888 =>
return 3 * Off;
when ARGB1555 | ARGB4444 | RGB565 | AL88 =>
return 2 * Off;
when L8 | AL44 | A8 =>
return Off;
when L4 | A4 =>
return Off / 2;
end case;
end Offset;
----------------
-- DMA2D_Fill --
----------------
procedure DMA2D_Fill
(Buffer : DMA2D_Buffer;
Color : UInt32;
Synchronous : Boolean := False)
is
function Conv is new Ada.Unchecked_Conversion (UInt32, OCOLR_Register);
begin
DMA2D_Wait_Transfer_Int.all;
DMA2D_Periph.CR.MODE := DMA2D_MODE'Enum_Rep (R2M);
DMA2D_Periph.OPFCCR.CM := As_UInt3 (Buffer.Color_Mode);
DMA2D_Periph.OCOLR := Conv (Color);
DMA2D_Periph.OMAR := To_Word (Buffer.Addr);
DMA2D_Periph.OOR := (LO => 0, others => <>);
DMA2D_Periph.NLR := (NL => UInt16 (Buffer.Height),
PL => UInt14 (Buffer.Width),
others => <>);
DMA2D_Init_Transfer_Int.all;
if Synchronous then
DMA2D_Wait_Transfer_Int.all;
end if;
end DMA2D_Fill;
---------------------
-- DMA2D_Fill_Rect --
---------------------
procedure DMA2D_Fill_Rect
(Buffer : DMA2D_Buffer;
Color : UInt32;
X : Integer;
Y : Integer;
Width : Integer;
Height : Integer;
Synchronous : Boolean := False)
is
function Conv is new Ada.Unchecked_Conversion (UInt32, OCOLR_Register);
Off : constant UInt32 := Offset (Buffer, X, Y);
begin
DMA2D_Wait_Transfer_Int.all;
DMA2D_Periph.CR.MODE := DMA2D_MODE'Enum_Rep (R2M);
DMA2D_Periph.OPFCCR :=
(CM => DMA2D_Color_Mode'Enum_Rep (Buffer.Color_Mode),
others => <>);
DMA2D_Periph.OCOLR := Conv (Color);
DMA2D_Periph.OMAR := To_Word (Buffer.Addr) + Off;
DMA2D_Periph.OOR.LO := UInt14 (Buffer.Width - Width);
DMA2D_Periph.NLR :=
(NL => UInt16 (Height), PL => UInt14 (Width), others => <>);
DMA2D_Init_Transfer_Int.all;
if Synchronous then
DMA2D_Wait_Transfer_Int.all;
end if;
end DMA2D_Fill_Rect;
---------------------
-- DMA2D_Draw_Rect --
---------------------
procedure DMA2D_Draw_Rect
(Buffer : DMA2D_Buffer;
Color : UInt32;
X : Integer;
Y : Integer;
Width : Integer;
Height : Integer)
is
begin
DMA2D_Draw_Horizontal_Line (Buffer, Color, X, Y, Width);
DMA2D_Draw_Horizontal_Line (Buffer, Color, X, Y + Height - 1, Width);
DMA2D_Draw_Vertical_Line (Buffer, Color, X, Y, Height);
DMA2D_Draw_Vertical_Line (Buffer, Color, X + Width - 1, Y, Height, True);
end DMA2D_Draw_Rect;