libcairo.dll.a for x64 ?

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N3trunn3r
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Joined: Feb 14, 2008 15:48

libcairo.dll.a for x64 ?

Post by N3trunn3r »

Can someone provide a static 64-bit library for Cairo?
But now i wonder if it is even possible to build a x64 library for Cairo...

If not, can I somehow use x32 libraries with fbc x64?
dodicat
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Re: libcairo.dll.a for x64 ?

Post by dodicat »

Here is the dll and an import library file

https://www.mediafire.com/file/7zg0w419 ... l.zip/file
D.J.Peters
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Re: libcairo.dll.a for x64 ?

Post by D.J.Peters »

@dodicat in setscreen() you used cairo_image_surface_create_for_data() but the last param "stride" is in bytes the fbgfx surface/image stride is a multiply of 16 bytes(4 pixels in RGBA) !
You can use imageInfo() if you create a surface from fbgfx image or ScreenInfo() if you used a gfx driver page as a source for a Cairo Image Surfaces.

The row alignment of 16 bytes is to support fast 16 byte aligned SSE CPU instructions. (so far I remember)

Joshy

Code: Select all

Function setscreen(xres As Integer,yres As Integer)  As cairo_t Ptr
  dim as integer pitch
  Screenres xres,yres,32 ',,&h08 Or &h40
  screeninfo xres,yres,,,pitch
  Width 8\xres,16\yres
  screenlock()
  Var surface = cairo_image_surface_create_for_data(Screenptr(), CAIRO_FORMAT_ARGB32,xres,yres,pitch)
  screenunlock()
  var res = cairo_create(surface)
  Return res
End Function
dodicat
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Re: libcairo.dll.a for x64 ?

Post by dodicat »

Thanks D.J.Peters.
16 bit alignment for images.
Screens-- xres*4 = pitch

Code: Select all


#define range(f,l) Int(Rnd*((l+1)-(f))+(f))

dim as long yres,pitch
dim as long ixres,iyres,ipitch
dim as any ptr im
windowtitle "Press a key"
do
      dim as long xres= range(300,800)
      screenres xres,400,32
      screeninfo xres,yres,,,pitch
      im=imagecreate (xres,yres)
      imageinfo im, ixres,iyres,,ipitch
      cls
      locate 3,5
      print "Screens"
      locate 5,5
      print "xres*4","pitch"
      print
      locate ,5
      print xres*4,pitch
      
      
      locate 12,5
      print "Images"
      locate 14,5
      print "xres*4","pitch"
      print
      locate ,5
      print ixres*4,ipitch
      
      
      sleep
      imagedestroy im
      loop until inkey=chr(27)
      
      
 
D.J.Peters
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Re: libcairo.dll.a for x64 ?

Post by D.J.Peters »

Code: Select all

print "width","bytes","pitch"
for x as integer = 160 to 172
  var bytes = x*4 ' RGBA
  var pitch  = ((bytes + 15)\4)*4 and &HFFF0
  print x,bytes,pitch
next
sleep
dodicat
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Re: libcairo.dll.a for x64 ?

Post by dodicat »

The pitch is numerically equal to xres*4 for various xres's, where xres=the screen width.
So what is the difference writing in xres*4 or pitch for the last parameter?
cairo_image_surface_create_for_data is getting sent that number (either xres*4 or pitch, which are equal).
Am I missing something here?
Why it pitch better than xres*4 ?
The only improvement I can do is call xres a long, and not integer.
I wrote the code ages ago when integer was required.
The last parameter of cairo_image_surface_create_for_data-- (stride as long).
D.J.Peters
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Re: libcairo.dll.a for x64 ?

Post by D.J.Peters »

@dodicat if you get only a multiply of 4 the source code of gfx driver are changed.
it was allways a multiply of 16 bytes not 4 in the past.

Take a look at the the C code pitch is width * bpp at first:
pitch = width * bpp ' 1,2,4
after this it becomes an multiply of 16
pitch = (pitch + 0xF) & ~0xF;

Joshy

Take a look at line 46

Code: Select all

/* image create/destroy functions */

#include "fb_gfx.h"

static void *gfx_imagecreate(int width, int height, unsigned int color, int depth, int flags, int usenewheader)
{
	FB_GFXCTX *context;
	PUT_HEADER *image;
	int size, pitch, header_size = 4;
	int bpp;

	FB_GRAPHICS_LOCK( );

	if ((!__fb_gfx) || (width <= 0) || (height <= 0)) {
		FB_GRAPHICS_UNLOCK( );
		fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
		return NULL;
	}

	context = fb_hGetContext();

	if (depth > 0) {
		bpp = BYTES_PER_PIXEL(depth);
		if ((bpp != 1) && (bpp != 2) && (bpp != 4)) {
			FB_GRAPHICS_UNLOCK( );
			fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
			return NULL;
		}
	} else {
		bpp = __fb_gfx->bpp;
	}

	if (flags & DEFAULT_COLOR_1) {
		switch (bpp) {
			case 1: color = 0; break;
			case 2: color = MASK_COLOR_16; break;
			case 4: color = MASK_COLOR_32 | MASK_A_32; break;
		}
	} else {
		if (bpp == 2)
			color = ((color & 0xF8) >> 3) | ((color & 0xFC00) >> 5) | ((color & 0xF80000) >> 8);
	}

	pitch = width * bpp; // bpp = 1,2,4
	if (usenewheader) {
		header_size = sizeof(PUT_HEADER);
		pitch = (pitch + 0xF) & ~0xF;
	}
	size = pitch * height;

	/* 0xF for the para alignment, p_size is sizeof(void *) rounded up to % 16 for the storage for the original pointer */
	int p_size = (sizeof(void *) + 0xF) & 0xF;
	void *tmp = malloc(size + header_size + p_size + 0xF);
	if (tmp == NULL) {
		FB_GRAPHICS_UNLOCK( );
		fb_ErrorSetNum( FB_RTERROR_OUTOFMEM );
		return NULL;
	}

	image = (PUT_HEADER *)(((intptr_t)tmp + p_size + 0xF) & ~0xF);
	((void **)image)[-1] = tmp;

	if (!usenewheader) {
		/* use old-style header for compatibility */
		image->old.bpp = bpp;
		image->old.width = width;
		image->old.height = height;
	} else {
		image->type = PUT_HEADER_NEW;
		image->bpp = bpp;
		image->width = width;
		image->height = height;
		image->pitch = pitch;
		fb_hMemSet(image->_reserved, 0, sizeof(image->_reserved));
	}

	fb_hPrepareTarget(context, (void *)image);
	fb_hSetPixelTransfer(context, MASK_A_32);
	context->pixel_set((unsigned char *)image + header_size, color, (pitch * height) / bpp);

	FB_GRAPHICS_UNLOCK( );
	fb_ErrorSetNum( FB_RTERROR_OK );
	return image;
}

FBCALL void *fb_GfxImageCreate(int width, int height, unsigned int color, int depth, int flags)
{
	return gfx_imagecreate( width, height, color, depth, flags, TRUE );
}

FBCALL void *fb_GfxImageCreateQB(int width, int height, unsigned int color, int depth, int flags)
{
	return gfx_imagecreate( width, height, color, depth, flags, FALSE );
}

FBCALL void fb_GfxImageDestroy(void *image)
{
	if( image == NULL ) return;
	free(((void **)image)[-1]);
}
dodicat
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Location: Scotland

Re: libcairo.dll.a for x64 ?

Post by dodicat »

Hi D.J.Peters.
That is for images, which are 16 bit aligned for colour depth 32
But for screen:

Code: Select all

Sub setscreen(xres As Long,yres As Long)
      Dim As Long pitch
      Screenres xres,yres,32
      Width xres\8,yres\16
      Screeninfo xres,yres,,,pitch
      Print "(screen resolution)","xres*4","pitch","yres"
      Print "(";xres;",";yres;")",,xres*4,pitch,yres
End Sub

#define range(f,l) Int(Rnd*((l+1)-(f))+(f))
Do 
      Var x=range(500,1000)
      Var y=range(300,700)
      setscreen(x,y)
      Sleep
Loop Until Inkey=Chr(27)


       
But to N3trunn3r
Please change
Width 8\xres,16\yres in the sub setscreen to
Width xres\8,yres\16
Also, you don't need (at the top)
Declare Function MoveWindow Alias "MoveWindow"(As Any Ptr,As Integer,As Integer,As Integer,As Integer,As Integer) As Integer
I was using that for something else.
D.J.Peters
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Re: libcairo.dll.a for x64 ?

Post by D.J.Peters »

@dodicat yes you are right scanline_size are ignored in set_mode (called by screenres,screen)

Joshy

Code: Select all

static int set_mode(int mode, int w, int h, int depth, int scanline_size, int num_pages, int refresh_rate,
                    int palette, int font, int flags, float aspect, int text_w, int text_h);

Code: Select all

__fb_gfx->pitch = __fb_gfx->w * __fb_gfx->bpp;
Last edited by D.J.Peters on Jul 08, 2022 8:59, edited 1 time in total.
Roland Chastain
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Re: libcairo.dll.a for x64 ?

Post by Roland Chastain »

Hi friends.

@dodicat

Very nice demo. But I believe that you forgot to call cairo_text_extents:

Code: Select all

Sub Cprint(surf As cairo_t Ptr,x As Long,y As Long,text As String,size As Single,colour As Ulong)
    cairo_set_font_size (surf,(size))
    cairo_text_extents (surf, text, @_text) ' <--
After that, I think we can remove the local variable l in texture3 sub.

Tested under Linux (with "Cantarell" instead of "Georgia").
dodicat
Posts: 7995
Joined: Jan 10, 2006 20:30
Location: Scotland

Re: libcairo.dll.a for x64 ?

Post by dodicat »

Thanks Roland.
I tried that (making l=0).
It sets the text in the proper place in each ball OK, but it knocks off "Press a key"
The text position (the way I have it) sets from the left bottom of the first character (line 27)
So it actually is OK on each ball with l=0, but looks stupid, so i made that little offset to make it look slightly less stupid.
Do both methods (with cairo_text_extents (surf, text, @_text) and without) work in Linux?
Is "Press a key" still on the screen using cairo_text_extents (surf, text, @_text)?
Roland Chastain
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Re: libcairo.dll.a for x64 ?

Post by Roland Chastain »

Yes, both methods work but indeed "Press a key" is cut when cairo_text_extents is called.
N3trunn3r
Posts: 110
Joined: Feb 14, 2008 15:48

Re: libcairo.dll.a for x64 ?

Post by N3trunn3r »

dodicat wrote: Jul 06, 2022 15:27 Here is the dll and an import library file

https://www.mediafire.com/file/7zg0w419 ... l.zip/file
Thanks, works just fine! :)

Where does the cairo.dll comes from?
I am much happier to get dlls from a single source, rather than have to deal with different files and versions.
For x32 I always install the GTK Runtime package, but there does not seem to be a precompiled x64 version of GTK Runtime for Windows.

I also just found precompiled x64 Cairo DLLs on github, could be a good alternative: https://github.com/preshing/cairo-windows
dodicat
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Location: Scotland

Re: libcairo.dll.a for x64 ?

Post by dodicat »

I think this was it:
https://github.com/preshing/cairo-windows/releases
member srvaldez first put up the link a while back.
I made the import lib myself using gendef (to get the .def file), and dlltool.
wallyg
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Location: Tucson Arizona

Re: libcairo.dll.a for x64 ?

Post by wallyg »

I use cairo with GTK and I got it from Msys for 64-bit use on an up-to-date Windows 10 machine.

Look at the documentation for Msys to see how to download it. It is quite easy and once you get it loaded, check out the documentation for downloading the latest version of GTK or any other package or as many packages as you need. Typically a single pacman line each. I only have downloaded GTK. I put a #lIBPATH statement in my FB code for the gtk lib and it all works slick as a wet frog's back.

Wally
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