v1.c

一个用于智能手机的多媒体库适合S60 WinCE的跨平台开发库

/*
 *			GPAC - Multimedia Framework C SDK
 *
 *			Copyright (c) Cyril Concolato 2004-2005
 *					All rights reserved
 *
 *  This file is part of GPAC / SVG Scene Graph Generator sub-project
 *
 *  GPAC is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  GPAC is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *   
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *
 */

#include "svggen.h"

void generateNode(FILE *output, SVGGenElement* svg_elt) 
{
	fprintf(output, "typedef struct _tagSVG_SA_%sElement\n{\n", svg_elt->implementation_name);

	if (svg_elt->has_transform) {
		fprintf(output, "\tTRANSFORMABLE_SVG_ELEMENT\n");
	} else {
		fprintf(output, "\tBASE_SVG_ELEMENT\n");
	}

	if (!strcmp(svg_elt->implementation_name, "conditional")) {
		fprintf(output, "\tSVGCommandBuffer updates;\n");
	} 

	generateAttributes(output, svg_elt->attributes, 0);

	/*special case for handler node*/
	if (!strcmp(svg_elt->implementation_name, "handler")) {
		fprintf(output, "\tvoid (*handle_event)(GF_Node *hdl, GF_DOM_Event *event);\n");
	}
	fprintf(output, "} SVG_SA_%sElement;\n\n\n", svg_elt->implementation_name);
}


void generateAttributeInfo(FILE *output, char * elt_imp_name, SVGGenAttribute *att, u32 i)
{
	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"%s\";\n", att->svg_name);
	fprintf(output, "\t\t\tinfo->fieldType = %s_datatype;\n", att->impl_type);
	fprintf(output, "\t\t\tinfo->far_ptr = & ((SVG_SA_%sElement *)node)->%s;\n", elt_imp_name, att->implementation_name);
	fprintf(output, "\t\t\treturn GF_OK;\n");
}

u32 generateCoreInfo(FILE *output, SVGGenElement *elt, u32 start)
{
	u32 i = start;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"id\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_ID_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = gf_node_get_name_address(node);\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"xml:id\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_ID_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = gf_node_get_name_address(node);\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"class\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_String_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVG_SA_Element *)node)->core->_class;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"xml:lang\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_LanguageID_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVG_SA_Element *)node)->core->lang;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"xml:base\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_String_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVG_SA_Element *)node)->core->base;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"xml:space\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = XML_Space_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVG_SA_Element *)node)->core->space;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"externalResourcesRequired\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_Boolean_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVG_SA_Element *)node)->core->eRR;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	return i;
}

void generateAttributeInfoFlat(FILE *output, char *pointer, char *name, char *type, u32 i)
{
	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"%s\";\n", name);
	fprintf(output, "\t\t\tinfo->fieldType = %s_datatype;\n", type);
	fprintf(output, "\t\t\tinfo->far_ptr = &%s;\n", pointer);
	fprintf(output, "\t\t\treturn GF_OK;\n");
}

u32 generateTransformInfo(FILE *output, SVGGenElement *elt, u32 start)
{
	u32 i = start;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"transform\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_Transform_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVGTransformableElement *)node)->transform;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;
	return i;
}

u32 generateMotionTransformInfo(FILE *output, SVGGenElement *elt, u32 start)
{
	u32 i = start;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"motionTransform\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_Motion_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = ((SVGTransformableElement *)node)->motionTransform;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;
	return i;
}

u32 generateXYInfo(FILE *output, SVGGenElement *elt, u32 start)
{
	u32 i = start;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"x\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_Coordinate_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVGTransformableElement *)node)->xy.x;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;

	fprintf(output, "\t\tcase %d:\n", i);
	fprintf(output, "\t\t\tinfo->name = \"y\";\n");
	fprintf(output, "\t\t\tinfo->fieldType = SVG_Coordinate_datatype;\n");
	fprintf(output, "\t\t\tinfo->far_ptr = &((SVGTransformableElement *)node)->xy.y;\n");
	fprintf(output, "\t\t\treturn GF_OK;\n");
	i++;
	return i;
}

u32 generateGenericInfo(FILE *output, SVGGenElement *elt, u32 index, char *pointer_root, u32 start)
{
	u32 i = start;
	int k;
	for (k=0; k < generic_attributes[index].array_length; k++) {
		char *att_name = generic_attributes[index].array[k];
		SVGGenAttribute *a = findAttribute(elt, att_name);
		if (a) {
			char pointer[500];
			if (strstr(att_name, "xlink:")) {
				sprintf(pointer, "%s%s", pointer_root, att_name+6);
			} else if (strstr(att_name, "xml:")) {
				sprintf(pointer, "%s%s", pointer_root, att_name+4);
			} else {
				char imp_name[50];
				svgNameToImplementationName(att_name, imp_name);
				sprintf(pointer, "%s%s", pointer_root, imp_name);
			}
			generateAttributeInfoFlat(output, pointer, a->svg_name, a->impl_type, i);
			i++;
		}
	}
	return i;
}

u32 generateIndexInfo(FILE *output, SVGGenElement *elt, u32 index, u32 start)
{
	u32 i = start;
	int k;
	for (k=0; k < generic_attributes[index].array_length; k++) {
		char *att_name = generic_attributes[index].array[k];
		SVGGenAttribute *a = findAttribute(elt, att_name);
		if (a) {
			fprintf(output, "\tif(!strcmp(\"%s\", name)) return %d;\n", att_name, i); 
			i++;
		}
	}
	return i;
}

void generateNodeImpl(FILE *output, SVGGenElement* svg_elt) 
{
	u32 i;	

	/***************************************************/	
	/*				Constructor						   */
	/***************************************************/	
	fprintf(output, "void *gf_svg_new_%s()\n{\n\tSVG_SA_%sElement *p;\n", svg_elt->implementation_name,svg_elt->implementation_name);
	fprintf(output, "\tGF_SAFEALLOC(p, SVG_SA_%sElement);\n\tif (!p) return NULL;\n\tgf_node_setup((GF_Node *)p, TAG_SVG_%s);\n\tgf_sg_parent_setup((GF_Node *) p);\n",svg_elt->implementation_name,svg_elt->implementation_name);
	fprintf(output, "#ifdef GF_NODE_USE_POINTERS\n");
	fprintf(output, "\t((GF_Node *p)->sgprivate->name = \"%s\";\n", svg_elt->implementation_name);
	fprintf(output, "\t((GF_Node *p)->sgprivate->node_del = gf_svg_sa_%s_del;\n", svg_elt->implementation_name);
	fprintf(output, "\t((GF_Node *p)->sgprivate->get_field = gf_svg_sa_%s_get_attribute;\n", svg_elt->implementation_name);
	fprintf(output, "#endif\n");

	fprintf(output, "\tgf_svg_sa_init_core((SVG_SA_Element *)p);\n");		
	if (svg_elt->has_properties || 
		svg_elt->has_media_properties || 
		svg_elt->has_opacity_properties) {
		fprintf(output, "\tgf_svg_sa_init_properties((SVG_SA_Element *)p);\n");		
	} 
	if (svg_elt->has_focus) {
		fprintf(output, "\tgf_svg_sa_init_focus((SVG_SA_Element *)p);\n");		
	} 
	if (svg_elt->has_xlink) {
		fprintf(output, "\tgf_svg_sa_init_xlink((SVG_SA_Element *)p);\n");		
	} 
	if (svg_elt->has_timing) {
		fprintf(output, "\tgf_svg_sa_init_timing((SVG_SA_Element *)p);\n");		
	} 
	if (svg_elt->has_sync) {
		fprintf(output, "\tgf_svg_sa_init_sync((SVG_SA_Element *)p);\n");		
	}
	if (svg_elt->has_animation){
		fprintf(output, "\tgf_svg_sa_init_anim((SVG_SA_Element *)p);\n");		
	} 
	if (svg_elt->has_conditional) {
		fprintf(output, "\tgf_svg_sa_init_conditional((SVG_SA_Element *)p);\n");		
	} 

	if (svg_elt->has_transform) {
		fprintf(output, "\tgf_mx2d_init(p->transform.mat);\n");
	} 

	if (!strcmp(svg_elt->implementation_name, "conditional")) {
		fprintf(output, "\tgf_svg_sa_init_lsr_conditional(&p->updates);\n");
		fprintf(output, "\tgf_svg_sa_init_timing((SVG_SA_Element *)p);\n");		

	} 

	for (i = 0; i < gf_list_count(svg_elt->attributes); i++) {
		SVGGenAttribute *att = gf_list_get(svg_elt->attributes, i);
		/* Initialization of complex types */
		if ( !strcmp("SVG_Points", att->impl_type) || 
			 !strcmp("SVG_Coordinates", att->impl_type) ||
			 !strcmp("SMIL_KeyPoints", att->impl_type)) {
			fprintf(output, "\tp->%s = gf_list_new();\n", att->implementation_name);
		} else if (!strcmp("SVG_PathData", att->impl_type) && !strcmp(svg_elt->svg_name, "animateMotion")) {
			fprintf(output, "#ifdef USE_GF_PATH\n");
			fprintf(output, "\tgf_path_reset(&p->path);\n");
			fprintf(output, "#else\n");
			fprintf(output, "\tp->path.commands = gf_list_new();\n");
			fprintf(output, "\tp->path.points = gf_list_new();\n");
			fprintf(output, "#endif\n");
		} else if (!strcmp("SVG_PathData", att->impl_type)) {
			fprintf(output, "#ifdef USE_GF_PATH\n");
			fprintf(output, "\tgf_path_reset(&p->d);\n");
			fprintf(output, "#else\n");
			fprintf(output, "\tp->d.commands = gf_list_new();\n");
			fprintf(output, "\tp->d.points = gf_list_new();\n");
			fprintf(output, "#endif\n");
		} else if (!strcmp(att->svg_name, "lsr:enabled")) {
			fprintf(output, "\tp->lsr_enabled = 1;\n");
		} 
	}
	/*some default values*/
	if (!strcmp(svg_elt->svg_name, "svg")) {
		fprintf(output, "\tp->width.type = SVG_NUMBER_PERCENTAGE;\n");
		fprintf(output, "\tp->width.value = INT2FIX(100);\n");
		fprintf(output, "\tp->height.type = SVG_NUMBER_PERCENTAGE;\n");
		fprintf(output, "\tp->height.value = INT2FIX(100);\n");
	}
	else if (!strcmp(svg_elt->svg_name, "solidColor")) {
		fprintf(output, "\tp->properties->solid_opacity.value = FIX_ONE;\n");
	}
	else if (!strcmp(svg_elt->svg_name, "stop")) {
		fprintf(output, "\tp->properties->stop_opacity.value = FIX_ONE;\n");
	}
	else if (!strcmp(svg_elt->svg_name, "linearGradient")) {
		fprintf(output, "\tp->x2.value = FIX_ONE;\n");
		fprintf(output, "\tgf_mx2d_init(p->gradientTransform.mat);\n");
	}
	else if (!strcmp(svg_elt->svg_name, "radialGradient")) {
		fprintf(output, "\tp->cx.value = FIX_ONE/2;\n");
		fprintf(output, "\tp->cy.value = FIX_ONE/2;\n");
		fprintf(output, "\tp->r.value = FIX_ONE/2;\n");
		fprintf(output, "\tgf_mx2d_init(p->gradientTransform.mat);\n");