Io Cairo bindings and OpenGL samples

teslos orbit <[email protected]> Wed, 4 Sep 2013 22:03:47 +0200
Newsgroups gmane.comp.lang.io
Message-ID <CAL3wUkWztojYLn3ELh+zoMaooC-T=-u9CPP=vDSO7WqLR+g5SQ@mail.gmail.com>
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Hi,

I have compiled Io from the current github. The library Cairo is curre=
ntly
disabled in the CMakeList.txt in addons directory. On my machine (OS X=

10.8.4) the OpenGL
compiled properly but when I started OpenGL samples it =
complain about Cairo
object not responding, it seems that OpenGL somehow de=
pends on Cairo
library??
After decommenting the line  for Cairo in addons/C=
MakeList.txt. I wasn't
able to compile because pkg-config didn't found the =
cairo on my mac ( I
installed it
!with homebrew). Using more robust FindCai=
ro.cmake which search /usr/local
etc.. the Cairo addon started
compiling bu=
t complained on the link phase that IoState_protoWithInitId_
symbol is not =
defined. After fiddling around, I found that
IoState_protoWithId are define=
d in IoState.c but there is no
 IoState_protoWithInitId_ function so I chan=
ged all
IoState_protoWithInitId_ with similar IoState_protoWithId_ function=
 in
Cairo addon (quick and dirty hack).
Cairo now compiled to the end and g=
ived this info:
Io 20110905
Io> Cairo
=3D=3D>  Cairo_0x7ffdaacad500:
  ANTI=
ALIAS_DEFAULT =3D 0
  ANTIALIAS_GRAY   =3D 2
  ANTIALIAS_NONE   =3D 1
  ANT=
IALIAS_SUBPIXEL =3D 3
  CONTENT_ALPHA    =3D 8192
  CONTENT_COLOR    =3D 40=
96
  CONTENT_COLOR_ALPHA =3D 12288
  Context          =3D Context_0x7ffdaac=
b1bd0
  EXTEND_NONE      =3D 0
  EXTEND_REFLECT   =3D 2
  EXTEND_REPEAT    =
=3D 1
  Extents          =3D Extents_0x7ffdaae032c0
  FILL_RULE_EVEN_ODD =
=3D 1
  FILL_RULE_WINDING =3D 0
  FILTER_BEST      =3D 2
  FILTER_BILINEAR =
 =3D 4
  FILTER_FAST      =3D 0
  FILTER_GAUSSIAN  =3D 5
  FILTER_GOOD     =
 =3D 1
  FILTER_NEAREST   =3D 3
  FONT_SLANT_ITALIC =3D 1
  FONT_SLANT_NORM=
AL =3D 0
  FONT_SLANT_OBLIQUE =3D 2
  FONT_WEIGHT_BOLD =3D 1
  FONT_WEIGHT_=
NORMAL =3D 0
  FORMAT_A1        =3D 3
  FORMAT_A8        =3D 2
  FORMAT_ARG=
B32    =3D 0
  FORMAT_RGB16_565 =3D 4
  FORMAT_RGB24     =3D 1
  FontExtent=
s      =3D FontExtents_0x7ffdaae1eb40
  FontFace         =3D FontFace_0x7ff=
daae06ac0
  FontOptions      =3D FontOptions_0x7ffdaae06c90
  Glyph        =
    =3D Glyph_0x7ffdaacb1a90
  Gradient         =3D Gradient_0x7ffdaae1f000=

  HAS_PDF_SURFACE  =3D true
  HAS_PNG_FUNCTIONS =3D true
  HAS_PS_SURFACE =
  =3D true
  HAS_SVG_SURFACE  =3D true
  HINT_METRICS_DEFAULT =3D 0
  HINT_=
METRICS_OFF =3D 1
  HINT_METRICS_ON  =3D 2
  HINT_STYLE_DEFAULT =3D 0
  HIN=
T_STYLE_FULL  =3D 4
  HINT_STYLE_MEDIUM =3D 3
  HINT_STYLE_NONE  =3D 1
  HI=
NT_STYLE_SLIGHT =3D 2
  ImageSurface     =3D ImageSurface_0x7ffdaae1f940
  =
LINE_CAP_BUTT    =3D 0
  LINE_CAP_ROUND   =3D 1
  LINE_CAP_SQUARE  =3D 2
  =
LINE_JOIN_BEVEL  =3D 2
  LINE_JOIN_MITER  =3D 0
  LINE_JOIN_ROUND  =3D 1
  =
LinearGradient   =3D LinearGradient_0x7ffdaae308c0
  Matrix           =3D M=
atrix_0x7ffdaae25560
  OPERATOR_ADD     =3D 12
  OPERATOR_ATOP    =3D 5
  O=
PERATOR_CLEAR   =3D 0
  OPERATOR_DEST    =3D 6
  OPERATOR_DEST_ATOP =3D 10
=
  OPERATOR_DEST_IN =3D 8
  OPERATOR_DEST_OUT =3D 9
  OPERATOR_DEST_OVER =3D=
 7
  OPERATOR_IN      =3D 3
  OPERATOR_OUT     =3D 4
  OPERATOR_OVER    =3D=
 2
  OPERATOR_SATURATE =3D 13
  OPERATOR_SOURCE  =3D 1
  OPERATOR_XOR     =
=3D 11
  PATH_CLOSE_PATH  =3D 3
  PATH_CURVE_TO    =3D 2
  PATH_LINE_TO    =
 =3D 1
  PATH_MOVE_TO     =3D 0
  PDFSurface       =3D PDFSurface_0x7ffdaae=
36800
  PSSurface        =3D PSSurface_0x7ffdaae6a160
  Path             =
=3D Path_0x7ffdaae49900
  PathElement      =3D PathElement_0x7ffdaae55a50
 =
 Pattern          =3D Pattern_0x7ffdaae55f80
  RadialGradient   =3D RadialG=
radient_0x7ffdaae56330
  Rectangle        =3D Rectangle_0x7ffdaae564f0
  SU=
BPIXEL_ORDER_BGR =3D 2
  SUBPIXEL_ORDER_DEFAULT =3D 0
  SUBPIXEL_ORDER_RGB =
=3D 1
  SUBPIXEL_ORDER_VBGR =3D 4
  SUBPIXEL_ORDER_VRGB =3D 3
  SVGSurface =
      =3D SVGSurface_0x7ffdaae6a4f0
  SVG_VERSION_1_1  =3D 0
  SVG_VERSION_=
1_2  =3D 1
  ScaledFont       =3D ScaledFont_0x7ffdaae12640
  SolidPattern =
    =3D SolidPattern_0x7ffdaae574a0
  Surface          =3D Surface_0x7ffdaa=
e38430
  SurfacePattern   =3D SurfacePattern_0x7ffdaae38d60
  TextExtents  =
    =3D TextExtents_0x7ffdaae39890
  version          =3D Cairo_version()

=
However running sample clip.io gives:
IoState_protoWithId_() Error: missing=
 proto with id
IoState fatal error: missing proto 'CairoSurface'

This coul=
d be problem with previous hack, but I know too less about
internals of Io =
to know what is the problem, please can you help me with
this problem.
Most=
 of the OpenGL samples are working ok.

Best regards,
=E2=88=83teslos

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=20=20=20=20=20=20
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      <p><div dir=3D"ltr"><span style=3D"font-family:arial,sans-serif;font-=
size:13px;">Hi,</span><div style=3D"font-family:arial,sans-serif;font-size:=
13px;"><br></div><div style=3D"font-family:arial,sans-serif;font-size:13px;=
">I have compiled Io from the current github. The library Cairo is currentl=
y disabled in the CMakeList.txt in addons directory. On my machine (<span s=
tyle=3D"font-family:arial;font-size:small;">OS X 10.8.4)=C2=A0</span>the Op=
enGL=C2=A0</div>








<div style=3D"font-family:arial,sans-serif;font-size:13px;">compiled proper=
ly but when I started OpenGL samples it complain about Cairo object not res=
ponding, it seems that OpenGL somehow depends on Cairo library??</div><div =
style=3D"font-family:arial,sans-serif;font-size:13px;">
After decommenting the line =C2=A0for Cairo in addons/CMakeList.txt. I wasn=
&#39;t able to compile because pkg-config didn&#39;t found the cairo on my =
mac ( I installed it <br>!with homebrew). Using more robust FindCairo.cmake=
 which search /usr/local etc.. the Cairo addon started=C2=A0</div>
<div style=3D"font-family:arial,sans-serif;font-size:13px;">compiling but c=
omplained on the link phase that=C2=A0IoState_protoWithInitId_ symbol is no=
t defined. After fiddling around, I found that IoState_protoWithId are defi=
ned in IoState.c but there is no =C2=A0IoState_protoWithInitId_ function so=
 I changed all IoState_protoWithInitId_ with similar IoState_protoWithId_ f=
unction in Cairo addon (quick and dirty hack).</div>
<div style=3D"font-family:arial,sans-serif;font-size:13px;">Cairo now compi=
led to the end and gived this info:</div><div style=3D"font-family:arial,sa=
ns-serif;font-size:13px;"><div>Io 20110905</div><div>Io&gt; Cairo</div><div=
>=3D=3D&gt; =C2=A0Cairo_0x7ffdaacad500:</div>
<div>=C2=A0 ANTIALIAS_DEFAULT =3D 0</div><div>=C2=A0 ANTIALIAS_GRAY =C2=A0 =
=3D 2</div><div>=C2=A0 ANTIALIAS_NONE =C2=A0 =3D 1</div><div>=C2=A0 ANTIALI=
AS_SUBPIXEL =3D 3</div><div>=C2=A0 CONTENT_ALPHA =C2=A0 =C2=A0=3D 8192</div=
><div>=C2=A0 CONTENT_COLOR =C2=A0 =C2=A0=3D 4096</div><div>=C2=A0 CONTENT_C=
OLOR_ALPHA =3D 12288</div>
<div>=C2=A0 Context =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D Context_0x7ffdaac=
b1bd0</div><div>=C2=A0 EXTEND_NONE =C2=A0 =C2=A0 =C2=A0=3D 0</div><div>=C2=
=A0 EXTEND_REFLECT =C2=A0 =3D 2</div><div>=C2=A0 EXTEND_REPEAT =C2=A0 =C2=
=A0=3D 1</div><div>=C2=A0 Extents =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D Ext=
ents_0x7ffdaae032c0</div><div>=C2=A0 FILL_RULE_EVEN_ODD =3D 1</div>
<div>=C2=A0 FILL_RULE_WINDING =3D 0</div><div>=C2=A0 FILTER_BEST =C2=A0 =C2=
=A0 =C2=A0=3D 2</div><div>=C2=A0 FILTER_BILINEAR =C2=A0=3D 4</div><div>=C2=
=A0 FILTER_FAST =C2=A0 =C2=A0 =C2=A0=3D 0</div><div>=C2=A0 FILTER_GAUSSIAN =
=C2=A0=3D 5</div><div>=C2=A0 FILTER_GOOD =C2=A0 =C2=A0 =C2=A0=3D 1</div><di=
v>=C2=A0 FILTER_NEAREST =C2=A0 =3D 3</div>
<div>=C2=A0 FONT_SLANT_ITALIC =3D 1</div><div>=C2=A0 FONT_SLANT_NORMAL =3D =
0</div><div>=C2=A0 FONT_SLANT_OBLIQUE =3D 2</div><div>=C2=A0 FONT_WEIGHT_BO=
LD =3D 1</div><div>=C2=A0 FONT_WEIGHT_NORMAL =3D 0</div><div>=C2=A0 FORMAT_=
A1 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D 3</div><div>=C2=A0 FORMAT_A8 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0=3D 2</div>
<div>=C2=A0 FORMAT_ARGB32 =C2=A0 =C2=A0=3D 0</div><div>=C2=A0 FORMAT_RGB16_=
565 =3D 4</div><div>=C2=A0 FORMAT_RGB24 =C2=A0 =C2=A0 =3D 1</div><div>=C2=
=A0 FontExtents =C2=A0 =C2=A0 =C2=A0=3D FontExtents_0x7ffdaae1eb40</div><di=
v>=C2=A0 FontFace =C2=A0 =C2=A0 =C2=A0 =C2=A0 =3D FontFace_0x7ffdaae06ac0</=
div><div>=C2=A0 FontOptions =C2=A0 =C2=A0 =C2=A0=3D FontOptions_0x7ffdaae06=
c90</div>
<div>=C2=A0 Glyph =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D Glyph_0x7ffd=
aacb1a90</div><div>=C2=A0 Gradient =C2=A0 =C2=A0 =C2=A0 =C2=A0 =3D Gradient=
_0x7ffdaae1f000</div><div>=C2=A0 HAS_PDF_SURFACE =C2=A0=3D true</div><div>=
=C2=A0 HAS_PNG_FUNCTIONS =3D true</div><div>=C2=A0 HAS_PS_SURFACE =C2=A0 =
=3D true</div><div>
=C2=A0 HAS_SVG_SURFACE =C2=A0=3D true</div><div>=C2=A0 HINT_METRICS_DEFAULT=
 =3D 0</div><div>=C2=A0 HINT_METRICS_OFF =3D 1</div><div>=C2=A0 HINT_METRIC=
S_ON =C2=A0=3D 2</div><div>=C2=A0 HINT_STYLE_DEFAULT =3D 0</div><div>=C2=A0=
 HINT_STYLE_FULL =C2=A0=3D 4</div><div>=C2=A0 HINT_STYLE_MEDIUM =3D 3</div>
<div>=C2=A0 HINT_STYLE_NONE =C2=A0=3D 1</div><div>=C2=A0 HINT_STYLE_SLIGHT =
=3D 2</div><div>=C2=A0 ImageSurface =C2=A0 =C2=A0 =3D ImageSurface_0x7ffdaa=
e1f940</div><div>=C2=A0 LINE_CAP_BUTT =C2=A0 =C2=A0=3D 0</div><div>=C2=A0 L=
INE_CAP_ROUND =C2=A0 =3D 1</div><div>=C2=A0 LINE_CAP_SQUARE =C2=A0=3D 2</di=
v>
<div>=C2=A0 LINE_JOIN_BEVEL =C2=A0=3D 2</div><div>=C2=A0 LINE_JOIN_MITER =
=C2=A0=3D 0</div><div>=C2=A0 LINE_JOIN_ROUND =C2=A0=3D 1</div><div>=C2=A0 L=
inearGradient =C2=A0 =3D LinearGradient_0x7ffdaae308c0</div><div>=C2=A0 Mat=
rix =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =3D Matrix_0x7ffdaae25560</div><div>=
=C2=A0 OPERATOR_ADD =C2=A0 =C2=A0 =3D 12</div>
<div>=C2=A0 OPERATOR_ATOP =C2=A0 =C2=A0=3D 5</div><div>=C2=A0 OPERATOR_CLEA=
R =C2=A0 =3D 0</div><div>=C2=A0 OPERATOR_DEST =C2=A0 =C2=A0=3D 6</div><div>=
=C2=A0 OPERATOR_DEST_ATOP =3D 10</div><div>=C2=A0 OPERATOR_DEST_IN =3D 8</d=
iv><div>=C2=A0 OPERATOR_DEST_OUT =3D 9</div><div>=C2=A0 OPERATOR_DEST_OVER =
=3D 7</div>
<div>=C2=A0 OPERATOR_IN =C2=A0 =C2=A0 =C2=A0=3D 3</div><div>=C2=A0 OPERATOR=
_OUT =C2=A0 =C2=A0 =3D 4</div><div>=C2=A0 OPERATOR_OVER =C2=A0 =C2=A0=3D 2<=
/div><div>=C2=A0 OPERATOR_SATURATE =3D 13</div><div>=C2=A0 OPERATOR_SOURCE =
=C2=A0=3D 1</div><div>=C2=A0 OPERATOR_XOR =C2=A0 =C2=A0 =3D 11</div><div>=
=C2=A0 PATH_CLOSE_PATH =C2=A0=3D 3</div>
<div>=C2=A0 PATH_CURVE_TO =C2=A0 =C2=A0=3D 2</div><div>=C2=A0 PATH_LINE_TO =
=C2=A0 =C2=A0 =3D 1</div><div>=C2=A0 PATH_MOVE_TO =C2=A0 =C2=A0 =3D 0</div>=
<div>=C2=A0 PDFSurface =C2=A0 =C2=A0 =C2=A0 =3D PDFSurface_0x7ffdaae36800</=
div><div>=C2=A0 PSSurface =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D PSSurface_0x7ffdaa=
e6a160</div><div>=C2=A0 Path =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =3D =
Path_0x7ffdaae49900</div>
<div>=C2=A0 PathElement =C2=A0 =C2=A0 =C2=A0=3D PathElement_0x7ffdaae55a50<=
/div><div>=C2=A0 Pattern =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D Pattern_0x7f=
fdaae55f80</div><div>=C2=A0 RadialGradient =C2=A0 =3D RadialGradient_0x7ffd=
aae56330</div><div>=C2=A0 Rectangle =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D Rectangl=
e_0x7ffdaae564f0</div>
<div>=C2=A0 SUBPIXEL_ORDER_BGR =3D 2</div><div>=C2=A0 SUBPIXEL_ORDER_DEFAUL=
T =3D 0</div><div>=C2=A0 SUBPIXEL_ORDER_RGB =3D 1</div><div>=C2=A0 SUBPIXEL=
_ORDER_VBGR =3D 4</div><div>=C2=A0 SUBPIXEL_ORDER_VRGB =3D 3</div><div>=C2=
=A0 SVGSurface =C2=A0 =C2=A0 =C2=A0 =3D SVGSurface_0x7ffdaae6a4f0</div>
<div>=C2=A0 SVG_VERSION_1_1 =C2=A0=3D 0</div><div>=C2=A0 SVG_VERSION_1_2 =
=C2=A0=3D 1</div><div>=C2=A0 ScaledFont =C2=A0 =C2=A0 =C2=A0 =3D ScaledFont=
_0x7ffdaae12640</div><div>=C2=A0 SolidPattern =C2=A0 =C2=A0 =3D SolidPatter=
n_0x7ffdaae574a0</div><div>=C2=A0 Surface =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0=3D Surface_0x7ffdaae38430</div>
<div>=C2=A0 SurfacePattern =C2=A0 =3D SurfacePattern_0x7ffdaae38d60</div><d=
iv>=C2=A0 TextExtents =C2=A0 =C2=A0 =C2=A0=3D TextExtents_0x7ffdaae39890</d=
iv><div>=C2=A0 version =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D Cairo_version(=
)</div></div><div style=3D"font-family:arial,sans-serif;font-size:13px;">
<br></div><div style=3D"font-family:arial,sans-serif;font-size:13px;">Howev=
er running sample=C2=A0<a href=3D"http://clip.io/" target=3D"_blank">clip.i=
o</a>=C2=A0gives:</div><div style=3D"font-family:arial,sans-serif;font-size=
:13px;"><div>IoState_protoWithId_() Error: missing proto with id</div>
<div>IoState fatal error: missing proto &#39;CairoSurface&#39;</div></div><=
div style=3D"font-family:arial,sans-serif;font-size:13px;"><br></div><div s=
tyle=3D"font-family:arial,sans-serif;font-size:13px;">This could be problem=
 with previous hack, but I know too less about internals of Io to know what=
 is the problem, please can you help me with this problem.</div>
<div style=3D"font-family:arial,sans-serif;font-size:13px;">Most of the Ope=
nGL samples are working ok.</div><div style=3D"font-family:arial,sans-serif=
;font-size:13px;"><br></div><div style=3D"font-family:arial,sans-serif;font=
-size:13px;">
Best regards,</div><div style=3D"font-family:arial,sans-serif;font-size:13p=
x;">=E2=88=83teslos=C2=A0</div></div>
</p>

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