9733e902a5
Fixed and completed support for returning multiple values. This includes support for returning arrays, both fixed and dynamically sized. The way this is achieved is by storing an additional int value next to the dynamic parameter in the ParameterList stack which gets passed to the C function as an additional parameter. In the case of return parameters it is duty of the C function to set this int to the correct length value for the dynamic parameter (which makes sense). Note that for the dynamic output/return parameter it is assumed the function has allocated that memory (which gets freed automatically). Also, I cleaned the makesrna's bridge function generation code a bit and renamed PROP_RETURN to PROP_OUTPUT, which represents better the reality now that there are multiple returns. The function now to mark multiple returns (outputs) is RNA_def_function_output. For an example, look at Action.get_frame_range in rna_action_api.c, by the way Aligorith I removed the #ifdef for this function now that there's support for returning arrays, feel free to modify (the function seems to work).
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/**
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2009 Blender Foundation.
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* All rights reserved.
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*
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*
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* Contributor(s): Arystanbek Dyussenov
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include "RNA_define.h"
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#include "RNA_types.h"
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#include "DNA_action_types.h"
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#ifdef RNA_RUNTIME
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#include "BKE_action.h"
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#include "DNA_anim_types.h"
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#include "DNA_curve_types.h"
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/* return frame range of all curves (min, max) or (0, 1) if there are no keys */
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void rna_Action_get_frame_range(bAction *act, int **frame_range, int *length_r)
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{
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int *ret;
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float start, end;
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calc_action_range(act, &start, &end, 1);
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*length_r= 2;
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ret= MEM_callocN(*length_r * sizeof(int), "rna_Action_get_frame_range");
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ret[0]= (int)start;
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ret[1]= (int)end;
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*frame_range= ret;
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}
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#else
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void RNA_api_action(StructRNA *srna)
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{
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FunctionRNA *func;
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PropertyRNA *parm;
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func= RNA_def_function(srna, "get_frame_range", "rna_Action_get_frame_range");
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RNA_def_function_ui_description(func, "Get action frame range as a (min, max) tuple.");
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parm= RNA_def_int_array(func, "frame_range", 1, NULL, 0, 0, "", "Action frame range.", 0, 0);
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RNA_def_property_flag(parm, PROP_DYNAMIC);
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RNA_def_function_output(func, parm);
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}
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#endif
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