FreeBasic Graphical Examples build 2019-05-08

UEZ · October 13, 2016

Here some graphical examples written completely in FreeBasic just for fun.

_WinAPI_SetWindowTitleIcon
Check for Numeric Entry in an EditBox using RegEx
CreateWindowEx (hGUI) Example
FB 3D Starfield Rotating Flight
FB File2Bas Code Generator
FB Fire Particles
FB Fireworks
FB GFX Examples
FB Image to Trapezoid Transformation
FB Layered Parallax Effect
FB Plasma
FB Puristic Clock
FB Rotating Cube
FB Rotating Earth
FB Rutt Etra Izer Effect
FB Simple Recursive Tree Generator
FB Snowfall
FB Tunnel Flight
FB Water Effect
FMOD Examples
GDI - GDI+ 3D Sinus Wave
GDI - GDI+ Animated Pythagoras Tree
GDI - GDI+ Bezier Lines
GDI - GDI+ Particles - Repulsive Force Sim v2.0
GDI - GDI+ Plasma v5 Booster
GDI - GDI+ Random Pattern
GDI - GDI+ Space Flight
GDI - GDI+ Tunnel Flight - WipeOut Style
GDI Classic Raytraced Tunnel
GDI Elastic Twister Effect
GDI Exploding Pixels
GDI Infinite Image Zoom Flight
GDI Liquid Pixels
GDI Mandelbrot
GDI Particle Repulsion Grid
GDI Particles Mouse Attraction
GDI Starfield
GDI The Nautilus Raymarcher
GDI Worm Tunnel Flight
GDI+ 3D Starfield Scrolling v1 Booster
GDI+ 3D Starfield Scrolling v3 Booster
GDI+ Convert Bitmap to ASCII
GDI+ GIF Anim to ASCII Player
GDI+ Image Painting
GDI+ Impossible Possible
GDI+ Kaleidoscope
GDI+ Performance Test - Au3 vs FB
GDI+ Polar Clock
GDI+ Rotating Earth
GDI+ Spiral Text
GDI+ Star Wars Scroller
GDI+ Streamer
GDI+ Swiss Railway Clock
GDI+ The MATRIX
Ini Read - Write
Rutt_Etra_Izer_Booster
Stack
TitchySID
uFMOD

Download: FreeBasic Examples build 2019-05-08.rar

I will add new examples from time to time.

FreeBasic source codes are also included.

Edited May 10, 2019 by UEZ
Added some more examples

wakillon · October 15, 2016

Very nice effects !

You play with graphics with a disconcerting skilfulness.

It's a pleasure for the eyes !

trancexx · October 16, 2016

I was curious why the executables are that big and whether free version of Visual Studio can be set to produce smaller exes. So I rewrote your code in C(++) and compiled it. I ended up with 5.5kb executables after removing CRT dependencies (by using Taylor series to approximate sin and cos) Pythagoras.zip

I hate default settings ...shit.

UEZ · October 16, 2016

19 hours ago, wakillon said:

Very nice effects !

You play with graphics with a disconcerting skilfulness.

It's a pleasure for the eyes !

Thank you.

53 minutes ago, trancexx said:

I was curious why the executables are that big and whether free version of Visual Studio can be set to produce smaller exes. So I rewrote your code in C(++) and compiled it. I ended up with 5.5kb executables after removing CRT dependencies (by using Taylor series to approximate sin and cos) Pythagoras.zip

I hate default settings ...shit.

Well done. Can you please post your C++ code? I want to see how you did that in C++.

Apropos dependencies: why didn't you use the inline ASM functions for Sin/Cos instead of approx. using Taylor series?

$\sin x=\sum _{n=0}^{\infty }{\frac {(-1)^{n}}{(2n+1)!}}x^{2n+1}=x-{\frac {x^{3}}{3!}}+{\frac {x^{5}}{5!}}-\cdots \quad {\text{ for all }}x\!$

$\cos x=\sum _{n=0}^{\infty }{\frac {(-1)^{n}}{(2n)!}}x^{2n}=1-{\frac {x^{2}}{2!}}+{\frac {x^{4}}{4!}}-\cdots \quad {\text{ for all }}x\!$

trancexx · October 16, 2016

7 hours ago, UEZ said:

Well done. Can you please post your C++ code? I want to see how you did that in C++.

Apropos dependencies: why didn't you use the inline ASM functions for Sin/Cos instead of approx. using Taylor series?

$\sin x=\sum _{n=0}^{\infty }{\frac {(-1)^{n}}{(2n+1)!}}x^{2n+1}=x-{\frac {x^{3}}{3!}}+{\frac {x^{5}}{5!}}-\cdots \quad {\text{ for all }}x\!$

$\cos x=\sum _{n=0}^{\infty }{\frac {(-1)^{n}}{(2n)!}}x^{2n}=1-{\frac {x^{2}}{2!}}+{\frac {x^{4}}{4!}}-\cdots \quad {\text{ for all }}x\!$

Inline ASM when I have real compiler to work with? No thanks.

As for sin and cos approximations, this could be the code (in AutoIt):

Func cos_($x)
    If $x < 0 Then $x = -$x
    While $x >= 3.14159265359
        $x -= 6.28318530718
    WEnd
    Return 1.0 - ($x * $x / 2) * (1 - ($x * $x / 12) * (1 - ($x * $x / 30) * (1 - $x * $x / 56)))
EndFunc

Func sin_($x)
    Return cos_($x - 1.570796326795)
EndFunc

Source of the exe is pretty much your AutoIt code. I just copy/passed it and cleaned a bit:

#include <windows.h>
#pragma comment( linker, "/entry:MwWinMain" )



__forceinline float cos_(float x) {
	if (x < 0.0f)
		x = -x;
	while (3.14159265359f < x)
		x -= 6.28318530718f;
	return 1.0f - (x*x / 2.0f)*(1.0f - (x*x / 12.0f) * (1.0f - (x*x / 30.0f) * (1.0f - x*x / 56.0f)));
}

__forceinline float sin_(float x) { return cos_(x - 1.570796326795f); }


__forceinline WCHAR* int_to_wstr(int val)
{
	static WCHAR buf[32] = { 0 };
	int i = 30;
	for (; val && i; --i, val /= 10)
		buf[i] = L"0123456789"[val % 10];
	
	return &buf[i + 1];
}


// Global Variables:
HWND hWnd;
WCHAR szTitle[50] = L"GDI Animated Pythagoras Tree v2.5 / FPS:   ";                  // The title bar text
WCHAR* szWindowClass = L"UEZ_thingy";            // the main window class name
UINT_PTR IDT_TIMER1 = 100;
UINT_PTR IDT_TIMER2 = 1000;
HDC $hDC;
HDC $hGfxDC;
int $iW = 1200, $iH = 700;
HBITMAP $hBitmapGDI;
HGDIOBJ $hObjOld, $hPen, $hBrush, $hPen_Old, $hBrush_Old;
int $iFPS = 0;

// Forward declarations of functions included in this code module:
__forceinline ATOM                MyRegisterClass();
__forceinline bool                InitInstance();
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);


int APIENTRY MwWinMain()
{
	MyRegisterClass();
	if (!InitInstance()) return FALSE;

	MSG msg;
	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	ExitProcess((int)msg.wParam);
}


__forceinline ATOM MyRegisterClass()
{
	WNDCLASSEXW wcex;

	wcex.cbSize = sizeof(WNDCLASSEX);
	wcex.style = CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc = WndProc;
	wcex.cbClsExtra = 0;
	wcex.cbWndExtra = 0;
	wcex.hInstance = nullptr;
	wcex.hIcon = nullptr;
	wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);// (HBRUSH)(GetStockObject(WHITE_BRUSH));
	wcex.lpszMenuName = nullptr;
	wcex.lpszClassName = szWindowClass;
	wcex.hIconSm = nullptr;

	return RegisterClassExW(&wcex);
}

__forceinline bool InitInstance()
{
	hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT, CW_USEDEFAULT, $iW, $iH, nullptr, nullptr, nullptr, nullptr);

	if (!hWnd) return false;

	$hDC = GetDC(hWnd);
	$hBitmapGDI = CreateCompatibleBitmap($hDC, $iW, $iH);
	$hGfxDC = CreateCompatibleDC($hDC);
	$hObjOld = SelectObject($hGfxDC, $hBitmapGDI);
	$hPen = GetStockObject(DC_PEN);
	$hBrush = GetStockObject(DC_BRUSH);
	$hPen_Old = SelectObject($hGfxDC, $hPen);
	$hBrush_Old = SelectObject($hGfxDC, $hBrush);
	SetStretchBltMode($hDC, WHITEONBLACK);

	ShowWindow(hWnd, 1);
	UpdateWindow(hWnd);

	SetTimer(hWnd,             // handle to main window 
		IDT_TIMER1,           // timer identifier 
		10,                  //interval 
		nullptr);           // no timer callback

	SetTimer(hWnd,             // handle to main window 
		IDT_TIMER2,           // timer identifier 
		1000,                //interval 
		nullptr);           // no timer callback

	return true;
}


void PythagorasRec(HDC $hDC, int $iX1, int $iY1, int $iX2, int $iY2, int $iRecDepth)
{
	auto $iBGR1 = ((255 - ($iRecDepth + 10) * 10) << 8) + $iRecDepth * 20;

	static float $i = 0;
	int $dx = $iX2 - $iX1;
	int $dy = $iY1 - $iY2;
	int  $iX3 = $iX2 - $dy;
	int $iY3 = $iY2 - $dx;
	int  $iX4 = $iX1 - $dy;
	int $iY4 = $iY1 - $dx;

	int  $iX5 = $iX4 + ($dx - $dy) / (2.5f - cos_(($iX4 + $i) / 400) / 1.5f);

	int  $iY5 = $iY4 - ($dx + $dy) / (2.25f + sin_(($iX5 + $iY4 - $i) / 500));

	$i += 0.06666f;

	BeginPath($hDC);
	MoveToEx($hDC, $iX1, $iY1, nullptr);
	LineTo($hDC, $iX2, $iY2);
	LineTo($hDC, $iX3, $iY3);
	LineTo($hDC, $iX4, $iY4);
	LineTo($hDC, $iX1, $iY1);
	EndPath($hDC);

	// DllCall($hDLL_gdi32, "dword", "SetDCPenColor", "handle", $hDC, "dword", $iBGR1)
	SetDCBrushColor($hDC, $iBGR1 | 0x305090);
	FillPath($hDC);
	//; DllCall($hDLL_gdi32, "bool", "StrokeAndFillPath", "handle", $hDC)
	
	if ($iRecDepth > 0)
	{
		PythagorasRec($hDC, $iX4, $iY4, $iX5, $iY5, $iRecDepth - 1);
		PythagorasRec($hDC, $iX5, $iY5, $iX3, $iY3, $iRecDepth - 1);
	}
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
	case WM_TIMER:
		if (wParam == IDT_TIMER1)
		{
			BitBlt($hGfxDC, 0, 0, $iW, $iH, $hGfxDC, 0, 0, WHITENESS);
			PythagorasRec($hGfxDC, 550, 700, 650, 700, 8);
			BitBlt($hDC, 0, 0, $iW, $iH, $hGfxDC, 0, 0, SRCCOPY);
			++$iFPS;
			return 0;
		}
		else if (wParam == IDT_TIMER2)
		{
			WCHAR* sFPS = int_to_wstr($iFPS);
			$iFPS = 0;
			szTitle[41] = *sFPS;
			szTitle[42] = *++sFPS;
			SetWindowText(hWnd, szTitle);
			return 0;
		}
		break;

	case WM_DESTROY:
		KillTimer(hWnd, IDT_TIMER1);
		KillTimer(hWnd, IDT_TIMER2);
		SelectObject($hGfxDC, $hPen_Old);
		DeleteObject($hPen);
		SelectObject($hGfxDC, $hBrush_Old);
		DeleteObject($hBrush);
		SelectObject($hGfxDC, $hObjOld);
		ReleaseDC(hWnd, $hDC);
		DeleteDC($hGfxDC);
		DeleteObject($hBitmapGDI);
		PostQuitMessage(0);
		return 0;

	case WM_PAINT:
	{
		PAINTSTRUCT ps;
		HDC hdc = BeginPaint(hWnd, &ps);
		//// TODO: Add any drawing code that uses hdc here...
		EndPaint(hWnd, &ps);
	}
	break;

	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

Edited October 16, 2016 by trancexx

UEZ · October 16, 2016

@trancexx thanks. At the first look C++ code looks more difficult but it isn't at least compared with Pythagoras code.

The C++ code made me curious and I will install the monster Visual Studio once again.

Thanks for sharing.

Btw, I add your Sin_/Cos_ function to FB just to compare the speed. I expected that the ASM inline is faster but isn't. Might be because the API calls amortize the speed difference.

AndyG · October 17, 2016

18 hours ago, UEZ said:

I expected that the ASM inline is faster but isn't. Might be because the API calls amortize the speed difference.

ASM (handcoded) is (a little bit) faster, but what you meant are the "native" FPU-Code FSIN(), FCOS() and FSINCOS(), where are way slower than an (as mentioned and showed by trancexx) approximation.

Calling the/an API-function is once more slower...

One of the reasons, why trancexx used

__forceinline

which causes the compiler to inline this function into code. That means, no jumps/calls into a function! Makes the code some bytes bigger, but faster :thumbsup:

19 hours ago, UEZ said:

The C++ code made me curious and I will install the monster Visual Studio once again.

I deinstalled VS yesterday....i am waiting for a compiler which is able to use "real" SIMD when switch on the SSE-Flag. I examined the EXE with IDApro. Yes, the compiler produces short and (in most cases) fast(?!) code using (half-hearted) processor-features which were introduced about 20 years ago...

The only code i saw from a compiler using SIMD (as intended) was from the newest INTEL C++/FORTRAN-Compiler XE (v17.0). And to get this performance it is necessary to program in a "vectorizing" style ( and/or excessive use of _intrinsics_(), which force the compiler to fast(?!) code) .

Or use OpenMP, CILK and other features/libraries. But all this is fu*** sh** to push their (INTEL´s) CPU´s. If the program/algorithm is good to parallelize, OpenCL/CUDA on a price-adjusted GPU is up to 50 to 100 times faster than the code running on a CPU.

Enough whining, we have AutoIt after all...

UEZ · October 17, 2016

@trancexx: I installed VS 2015 Pro. How can I get run your source code?

I opened a Win32Project and pasted your code into the editor but when I try to run it I get ems.

trancexx · October 17, 2016

1 hour ago, UEZ said:

@trancexx: I installed VS 2015 Pro. How can I get run your source code?

I opened a Win32Project and pasted your code into the editor but when I try to run it I get ems.

All default?

If yes then add #include <stdafx.h> at the top of that code, switch to "Release" "x86" then click "Debug" and select "Start Without Debugging"

Edited October 17, 2016 by trancexx

UEZ · October 17, 2016

Aha, working. Now I can play with code. :thumbsup:

THANKS.

Edited October 17, 2016 by UEZ

trancexx · October 17, 2016

Oh, and to get small exes you'll need to change default settings for both compiler and linker. Otherwise you end up with plenty of BS.

UEZ · October 17, 2016

@trancexx: what have you done that the output (exe) is that small? My output is approx. 100kb.

UEZ · October 17, 2016

1 minute ago, trancexx said:

Oh, and to get small exes you'll need to change default settings for both compiler and linker. Otherwise you end up with plenty of BS.

Can you tell me if it's not too complicated to explain. Otherwise I can live also with 100kb.

trancexx · October 17, 2016

4 minutes ago, UEZ said:

Can you tell me if it's not too complicated to explain. Otherwise I can live also with 100kb.

Sure. First of all delete all resource files from solution explorer window (right click on "Resource Files" -> delete. Then do the same for header files. Then remove #include #include "stdafx.h" line. Then go to "Project" and select bottom item (it should be "Some_Name Properties...", then expand "C/C++" and click "Precompiled Headers". On the right click "Use (/Yu)" and then select "Not Using Precompiled Headers".

Then on the left expand "Linker" and choose "Manifest File". Then on the right click "Yes /blah blah" and select "No ..."

trancexx · October 17, 2016

You should be on 6.5kb now. Few more tweaks and you're done.

UEZ · October 17, 2016

5 minutes ago, trancexx said:

You should be on 6.5kb now. Few more tweaks and you're done.

Yep, exactly 6.5kb.

10.000 things to learn...

Thanks again.

Edited October 17, 2016 by UEZ

AndyG · October 22, 2016

On 17.10.2016 at 10:33 PM, UEZ said:

10.000 things to learn...

Or ask some of the 10.000 M$-Programmers why they are able to produce such a beautiful and outstanding piece of Software but not able to place a "Build smallest/shortest output possible" Button.

I am afraid, at our next joint beer, you will tell me that you added a "Build smallest/shortest output possible"-Button into the VS (by AutoIt of course! ). I am looking forward to...the beer, not the button

Lakes · January 22, 2017

@UEZ, that FreeBasic 3D SinePlot got me interested, do you use one of the FreeBasic IDEs and if so, which one?

UEZ · January 22, 2017

@Lakes: here a list of IDEs: https://www.freebasic-portal.de/downloads/ides-fuer-freebasic/

I personally using FbEdit.

Lakes · January 22, 2017

Thanks.

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