paweld/fpc
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/fpc/source.git synced 2025-08-19 09:09:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

+ added fast 32bpp GetScanLine routine

Browse Source 
git-svn-id: trunk@40875 -
This commit is contained in:
nickysn 2019-01-16 14:34:29 +00:00
parent 9424e2cc66
commit 98d7f7eafc
1 changed files with 33 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
packages/graph/src/ptcgraph/ptcgraph.pp
View File

@ -1940,6 +1940,38 @@ Begin
End;
End;
{$ifdef FPC_GRAPH_SUPPORTS_TRUECOLOR}
Procedure PTC_GetScanlineProc_32bpp (X1, X2, Y : smallint; Var Data);
Var
pixels : Plongword;
x,vpx1,vpx2 : smallint;
Begin
vpx1:=X1+StartXViewPort;
vpx2:=X2+StartXViewPort;
Y:=Y+StartYViewPort;
{ constrain to the part of the scanline that is in the viewport }
if clipPixels then
begin
if vpx1 < startXViewPort then
vpx1 := startXViewPort;
if vpx2 > startXViewPort + viewWidth then
vpx2 := startXViewPort + viewWidth;
end;
{ constrain to the part of the scanline that is on the screen }
if vpx1 < 0 then
vpx1 := 0;
if vpx2 >= PTCwidth then
vpx2 := PTCwidth-1;
If (ClipPixels AND (y <= startYViewPort+viewHeight) and (y >= startYViewPort) and (y>=0) and (y<PTCheight)) or Not(ClipPixels) then
Begin
pixels := ptc_surface_lock;
For x:=vpx1 to vpx2 Do
LongWordArray(Data)[x-StartXViewPort-x1]:=pixels[x+y*PTCWidth];
ptc_surface_unlock;
End;
End;
{$endif FPC_GRAPH_SUPPORTS_TRUECOLOR}
{**********************************************************}
{ Procedure GetImage() }
{----------------------------------------------------------}
@ -2342,7 +2374,7 @@ end;
mode.GetPixel := @ptc_GetPixelProc_32bpp;
// mode.PutImage := @ptc_PutImageProc_32bpp;
// mode.GetImage := @ptc_GetImageProc_32bpp;
// mode.GetScanLine := @ptc_GetScanLineProc_32bpp;
mode.GetScanLine := @ptc_GetScanLineProc_32bpp;
mode.SetRGBPalette := @ptc_SetRGBPaletteProc;
mode.GetRGBPalette := @ptc_GetRGBPaletteProc;
//mode.SetAllPalette := {$ifdef fpc}@{$endif}SetVGARGBAllPalette;