f41aeca9ff
Mon Sep 13 05:00:11 1993 Eric Youngdale
* [Makefile] [if1632/relay.c] [include/dlls.h] [selector.c]
[loader/wine.c] [tools/build.c]
Added ability to generate missing functions statistics.
Mon Sep 13 12:09:47 1993 Scott A. Laird (scott@curly)
* [WIN31-APPLETS]
Added new file.
* [if1632/kernel.spec]
Added definitions for GetProfile{Int,String} and SetHandleCount.
* [if1632/keyboard.spec]
Created interface specification for Keyboard driver DLL.
* [if1632/relay.c]
Added keyboard.dll to list of included DLLs.
* [if1632/user.spec]
Added LoadAccelerators definition.
* [loader/resource.c]
Added LoadAccelerators stub.
* [misc/file.c]
Changed OpenFile, and added SetHandleCount (for winfile.exe)
* [misc/keyboard.c]
Added keyboard code.
* [misc/profile.c] [misc/xt.c]
Moved GetPrivateProfile* commands here, and added GetProfile*
commands.
Mon Sep 13 10:24:37 1993 Andrew Bulhak
* [windows/utility.c]
Implemented MulDiv(), OutputDebugString() and wvsprintf()
Fri Sep 10 09:13:30 1993 John Brezak
* [*/Makefile]
Created patch to allow BSD make to build wine.
* [windows/win.c]
Fixed NULL pointer reference.
* [windows/message.c] [misc/xt.c]
Defined HZ to handle system specific timing.
* [windows/graphics.c]
Use M_PI is PI
* [objects/pallete.c]
NetBSD does not have /usr/include/values.h and MAXINT is INT_MAX.
* [dump.c] [ldt.c] [wine.c]
ifdef'ed linux headers for linux compile.
* [loader/ldtlib.c]
Add NetBSD system calls when compiled on that system.
* [loader/selector.c]
Use mmap(MAP_ANON, ...) for NetBSD.
* [if1632/call.S]
Fixed selector assumptions.
Thu Sep 9 20:01:37 1993 David Metcalfe
* [controls/WinButton*] [controls/button.c] [controls/widget.c]
[windows/win.c] [windows/class.c]
Added 3D button control and tied into CreateWindow()
Thu Sep 9 07:35:24 1993 Scott Laird
* [if1632/sound.spec]
Created interface specification for SOUND DLL.
* [if1632/win87em.spec]
Added more functions to the WIN87EM DLL interface specification
* [misc/emulate.c]
Created stubs for the new math emulation functions.
* [misc/sound.c]
Created stubs for the SOUND DLL.
Sun Sep 5 21:02:10 1993 John Burton
* [if1632/kernel.spec]
Added interface specifications for OpenFile, _lclose, _lread, _lopen,
and _lwrite.
* [include/windows.h]
Added OF_ macros
* [misc/file.c]
Implemented OpenFile, _lclose, _lread, _lopen and _lwrite.
Fri Sep 3 18:47:03 1993 Alexandre Julliard
* [windows/dc.c]
Bug fix
* [objects/text.c]
Bug fix
Fri Sep 3 18:47:03 1993 Bob Amstadt
* [objects/linedda.c]
Finished LineDDA().
46 lines
940 B
C
46 lines
940 B
C
/*
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* LineDDA
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*
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* Copyright 1993 Bob Amstadt
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*/
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static char Copyright[] = "Copyright Bob Amstadt, 1993";
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#include <stdlib.h>
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#include "win.h"
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/**********************************************************************
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* LineDDA (GDI.100)
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*/
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void LineDDA(short nXStart, short nYStart, short nXEnd, short nYEnd,
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FARPROC callback, long lParam)
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{
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int x, y;
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int b;
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int x_diff = nXEnd - nXStart;
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int y_diff = nYEnd - nYStart;
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if (x_diff == 0 && y_diff == 0)
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return;
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if ((abs(x_diff) < abs(y_diff) && x_diff != 0) || y_diff == 0)
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{
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b = (nXStart * y_diff) / x_diff - nYStart;
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for (x = nXStart; x <= nXEnd; x++)
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{
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y = (x * y_diff) / x_diff + b;
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CallLineDDAProc(callback, x, y, lParam);
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}
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}
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else
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{
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b = (nYStart * x_diff) / y_diff - nXStart;
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for (y = nYStart; y <= nYEnd; y++)
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{
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x = (y * x_diff) / y_diff + b;
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CallLineDDAProc(callback, x, y, lParam);
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}
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}
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}
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