octave-jordi: libinterp/dldfcn/__osmesa_print_

annotate libinterp/dldfcn/__osmesa_print__.cc @ 19708:5cfb3ccbf24a

style fixes for resource management * __osmesa_print__.cc (close_fcn): New function. (F__osmesa_print__): Manage FILE pointer with unwind_protect. Allocate local buffer with OCTAVE_LOCAL_BUFFER. * gl2ps-renderer.cc (gl2ps_print): Check for valid FILE pointer from octave_popen. * oct-parse.in.yy (parse_fcn_file): Check for valid FILE pointer from fopen.

author	John W. Eaton <jwe@octave.org>
date	Fri, 13 Feb 2015 16:46:21 -0500
parents	59ad278cfb98
children	ce0a1bd0cd47

rev	line source
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	1 /*
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	2
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	3 Copyright (C) 2015 Andreas Weber <andy.weber.aw@gmail.com>
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	4
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	5 This file is part of Octave.
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	6
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	8 under the terms of the GNU General Public License as published by the
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	10 option) any later version.
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	11
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	15 for more details.
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	16
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	17 You should have received a copy of the GNU General Public License
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	18 along with Octave; see the file COPYING. If not, see
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	19 <http://www.gnu.org/licenses/>.
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	20
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	21 This code is based on Brian Pauls' src/osdemos/osdemo.c
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	22 from git://anongit.freedesktop.org/mesa/demos
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	23
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	24 */
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	25
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	26 #ifdef HAVE_CONFIG_H
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	27 #include <config.h>
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	28 #endif
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	29
19708 5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	30 #include "oct-locbuf.h"
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	31 #include "unwind-prot.h"
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	32
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	33 #include "defun-dld.h"
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	34 #include "gl-render.h"
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	35 #include "gl2ps-renderer.h"
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	36 #include "graphics.h"
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	37 #include "gripes.h"
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	38
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	39 #ifdef HAVE_OSMESA
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	40 #include "GL/osmesa.h"
19708 5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	41
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	42 static void
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	43 close_fcn (FILE *f)
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	44 {
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	45 gnulib::fclose (f);
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	46 }
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	47 #endif
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	48
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	49 DEFUN_DLD(__osmesa_print__, args, ,
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	50 "-- texinfo --\n\
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	51 @deftypefn {Loadable Function} __osmesa_print__ (@var{h}, @var{file}, @var{term})\n\
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	52 @deftypefnx {Loadable Function} {@var{img} =} __osmesa_print__ (@var{h})\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	53 Print figure @var{h} using OSMesa and gl2ps for vector formats.\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	54 \n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	55 This is a private internal function.\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	56 The first method calls gl2ps with the appropriate @var{term} and writes\n\
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	57 the output of gl2ps to @var{file}. If the first character of @var{file}\n\
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	58 is @qcode{\|}, then a process is started and the output of gl2ps is piped to it.\n\
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	59 \n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	60 Valid options for @var{term}, which can be concatenated in one string, are:\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	61 @table @asis\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	62 @item @qcode{eps}, @qcode{pdf}, @qcode{ps}, @qcode{svg}, @qcode{pgf}, @qcode{tex}\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	63 Select output format.\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	64 @item @qcode{is2D}\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	65 Use GL2PS_SIMPLE_SORT instead of GL2PS_BSP_SORT as Z-depth sorting algorithm.\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	66 @item @qcode{notext}\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	67 Don't render text.\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	68 @end table\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	69 \n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	70 The second method doesn't use gl2ps and returns a RGB image in @var{img} instead.\n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	71 \n\
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	72 @end deftypefn")
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	73 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	74 octave_value_list retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	75
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	76 #ifndef HAVE_OSMESA
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	77 gripe_disabled_feature ("__osmesa_print__", "Offscreen rendering");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	78 #else
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	79
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	80 int nargin = args.length ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	81
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	82 if (! (nargin == 1 \|\| nargin == 3))
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	83 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	84 print_usage ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	85 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	86 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	87
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	88 if ((nargin == 3))
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	89 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	90 if(! (args(1).is_string () && args(2).is_string ()))
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	91 {
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	92 error ("__osmesa_print__: FILE and TERM has to be strings");
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	93 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	94 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	95
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	96 #ifndef HAVE_GL2PS_H
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	97 error ("__osmesa_print__: Octave has been compiled without gl2ps");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	98 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	99 #endif
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	100 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	101
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	102 int h = args(0).double_value ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	103 graphics_object fobj = gh_manager::get_object (h);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	104 if (! (fobj && fobj.isa ("figure")))
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	105 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	106 error ("__osmesa_print__: H has to be a valid figure handle");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	107 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	108 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	109
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	110 figure::properties& fp =
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	111 dynamic_cast<figure::properties&> (fobj.get_properties ());
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	112
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	113 bool internal = true;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	114 Matrix bb = fp.get_boundingbox (internal);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	115
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	116 int Width = bb(2);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	117 int Height = bb(3);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	118
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	119 OSMesaContext ctx;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	120 void *buffer;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	121
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	122 // Create an RGBA-mode context, specify Z=16, stencil=0, accum=0 sizes
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	123 ctx = OSMesaCreateContextExt (OSMESA_RGBA, 16, 0, 0, NULL);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	124 if (! ctx)
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	125 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	126 error ("__osmesa_print__: OSMesaCreateContext failed!\n");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	127 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	128 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	129
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	130 // Allocate the image buffer
19708 5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	131 OCTAVE_LOCAL_BUFFER (GLubyte, 4 * Width * Height, buffer);
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	132
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	133 // Bind the buffer to the context and make it current
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	134 if (! OSMesaMakeCurrent (ctx, buffer, GL_UNSIGNED_BYTE, Width, Height))
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	135 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	136 error ("__osmesa_print__: OSMesaMakeCurrent failed!\n");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	137 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	138 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	139
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	140 // Test for a bug in OSMesa with version < 9.0
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	141 // Unfortunately the macros OSMESA_MAJOR_VERSION and OSMESA_MINOR_VERSION weren't
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	142 // updated between many releases and can't be used for detection therefore.
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	143 // (Version 8.0 until 9.1.4 all return MAJOR 6, MINOR 5)
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	144 int z, s;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	145 glGetIntegerv (GL_DEPTH_BITS, &z);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	146 glGetIntegerv (GL_STENCIL_BITS, &s);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	147 if ((z != 16) \|\| (s != 0))
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	148 error ("__osmesa_print__: Depth and stencil doesn't match,"
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	149 " are you sure you are using OSMesa >= 9.0?");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	150
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	151 // check if the figure is visible
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	152 bool v = fp.is_visible ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	153 if (v)
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	154 fp.set_visible ("off");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	155
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	156 if (nargin == 3)
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	157 {
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	158 // use gl2ps
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	159 std::string file = args(1).string_value ();
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	160 std::string term = args(2).string_value ();
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	161
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	162 if (! error_state)
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	163 {
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	164 size_t pos = file.find_first_not_of ("\|");
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	165 if (pos > 0)
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	166 {
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	167 // create process and pipe gl2ps output to it
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	168 std::string cmd = file.substr (pos);
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	169 gl2ps_print (fobj, cmd, term);
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	170 }
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	171 else
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	172 {
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	173 // write gl2ps output directly to file
19708 5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	174 FILE *filep = fopen (file.c_str (), "w");
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	175
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	176 if (filep)
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	177 {
19708 5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	178 unwind_protect frame;
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	179
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	180 frame.add_fcn (close_fcn, filep);
5cfb3ccbf24a style fixes for resource management John W. Eaton <jwe@octave.org> parents: 19706 diff changeset	181
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	182 glps_renderer rend (filep, term);
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	183 rend.draw (fobj, "");
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	184
19706 59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	185 // Make sure buffered commands are finished!!!
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	186 glFinish ();
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	187 }
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	188 else
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	189 error ("__osmesa_print__: Couldn't create file \"%s\"", file.c_str ());
59ad278cfb98 __opengl_print__.m: Use OSMesa for offscreen rendering (Bug #33180) Andreas Weber <andy.weber.aw@gmail.com> parents: 19702 diff changeset	190 }
19702 a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	191 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	192 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	193 else
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	194 {
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	195 // return RGB image
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	196 opengl_renderer rend;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	197 rend.draw (fobj);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	198
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	199 // Make sure buffered commands are finished!!!
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	200 glFinish ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	201
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	202 dim_vector dv (4, Width, Height);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	203
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	204 // FIXME: We expect that GLubyte is 1 Byte long.
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	205 // Adapt code if this isn't always true
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	206 assert (sizeof (GLubyte) == 1);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	207 uint8NDArray img (dv);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	208 unsigned char p = reinterpret_cast<unsigned char>(img.fortran_vec ());
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	209 memcpy (p, buffer, (4 * Width * Height));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	210
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	211 Array<octave_idx_type> perm (dim_vector (3, 1));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	212 perm(0) = 2;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	213 perm(1) = 1;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	214 perm(2) = 0;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	215
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	216 Array<idx_vector> idx (dim_vector (3, 1));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	217
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	218 // Flip Y
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	219 idx(0) = idx_vector::make_range (Height - 1, -1, Height);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	220 idx(1) = idx_vector::colon;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	221
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	222 // Remove alpha channel
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	223 idx(2) = idx_vector (0, 3);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	224 retval = octave_value (img.permute (perm). index(idx));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	225 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	226
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	227 // restore visibility if necessary
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	228 if (v)
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	229 fp.set_visible ("on");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	230
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	231 OSMesaDestroyContext (ctx);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	232
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	233 #endif
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	234 return retval;
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	235 }
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	236
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	237 /*
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	238 %!testif HAVE_OSMESA
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	239 %! h = figure ("visible", "off");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	240 %! fn = tempname ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	241 %! sombrero ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	242 %! __osmesa_print__ (h, fn, "svg");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	243 %! assert (stat (fn).size, 2692270, -0.1);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	244 %! unlink (fn);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	245 %! img = __osmesa_print__ (h);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	246 %! assert (size (img), [get(h, "position")([4, 3]), 3])
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	247 %! ## Use pixel sum per RGB channel as fingerprint
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	248 %! img_fp = squeeze (sum (sum (img), 2));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	249 %! assert (img_fp, [52942515; 54167797; 56158178], -0.05);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	250
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	251 %!testif HAVE_OSMESA
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	252 %! h = figure ("visible", "off");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	253 %! fn = tempname ();
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	254 %! plot (sin (0:0.1:2*pi));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	255 %! __osmesa_print__ (h, fn, "svgis2d");
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	256 %! assert (stat (fn).size, 7438, -0.05);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	257 %! unlink (fn);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	258 %! img = __osmesa_print__ (h);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	259 %! assert (size (img), [get(h, "position")([4, 3]), 3])
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	260 %! ## Use pixel sum per RGB channel as fingerprint
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	261 %! img_fp = squeeze (sum (sum (img), 2));
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	262 %! assert (img_fp, [59281711; 59281711; 59482179], -0.05);
a81177f4bfe6 Add __osmesa_print__.cc for offscreen rendering with OpenGL Andreas Weber <andy.weber.aw@gmail.com> parents: diff changeset	263 */

Mercurial > hg > octave-jordi

annotate libinterp/dldfcn/__osmesa_print__.cc @ 19708:5cfb3ccbf24a