MadButterfly: nodejs/image

annotate nodejs/image_ldr.cc @ 685:7bb126d42282

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author	Thinker K.F. Li <thinker@branda.to>
date	Sat, 07 Aug 2010 19:36:10 +0800
parents	b346e4699e55
children	586e50f82c1f

rev	line source
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	1 /*! \file
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	2 * This file implements Javascript binding for img_ldr_t of MadButterfly.
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	3 */
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	4 #include <v8.h>
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	6 extern "C" {
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	7 #include "mb.h"
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	8 }
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	9
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	10 #include "mbfly_njs.h"
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	11
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	12 using namespace v8;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	13
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	14 #ifndef ASSERT
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	15 #define ASSERT(x)
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	16 #endif
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	17
684 b346e4699e55 Add more comment for JS binding Thinker K.F. Li <thinker@branda.to> parents: 643 diff changeset	18 /*! \defgroup xnjsmb_img_ldr_js Javascript binding for image loader.
b346e4699e55 Add more comment for JS binding Thinker K.F. Li <thinker@branda.to> parents: 643 diff changeset	19 * \ingroup xnjsmb
640 9016e7e70f7d Group binding for image loader with Doxygen syntax Thinker K.F. Li <thinker@branda.to> parents: 639 diff changeset	20 *
9016e7e70f7d Group binding for image loader with Doxygen syntax Thinker K.F. Li <thinker@branda.to> parents: 639 diff changeset	21 * @{
9016e7e70f7d Group binding for image loader with Doxygen syntax Thinker K.F. Li <thinker@branda.to> parents: 639 diff changeset	22 */
9016e7e70f7d Group binding for image loader with Doxygen syntax Thinker K.F. Li <thinker@branda.to> parents: 639 diff changeset	23
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	24 static Persistent<ObjectTemplate> img_data_temp;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	25
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	26 /*! \brief load() method of img_ldr Javascript objects.
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	27 */
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	28 static Handle<Value>
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	29 xnjsmb_img_ldr_load(const Arguments &args) {
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	30 HandleScope scope;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	31 int argc = args.Length();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	32 Handle<Object> self = args.This();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	33 char *img_id;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	34 mb_img_ldr_t *img_ldr;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	35 mb_img_data_t *img_data;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	36 Handle<Object> img_data_obj;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	37
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	38 if(argc != 1)
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	39 THROW("Invalid number of arguments (!= 1)");
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	40 if(!args[0]->IsString())
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	41 THROW("Invalid argument type");
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	42
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	43 String::Utf8Value img_id_utf8(args[0]->ToString());
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	44 img_id = *img_id_utf8;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	45 img_ldr = (mb_img_ldr_t *)UNWRAP(self);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	46
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	47 img_data_obj = img_data_temp->NewInstance();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	48 ASSERT(img_data_obj);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50 img_data = MB_IMG_LDR_LOAD(img_ldr, img_id);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	51 if(img_data == NULL)
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	52 THROW("Can not load an image");
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	53 WRAP(img_data_obj, img_data);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	55 scope.Close(img_data_obj);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	56
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	57 return img_data_obj;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	58 }
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	59
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	60 /*! \brief Constructor function of img_ldr Javascript objects.
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	61 */
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	62 static Handle<Value>
643 a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	63 xnjsmb_img_ldr(const Arguments &args) {
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	64 HandleScope scope;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	65 int argc = args.Length();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	66 Handle<Object> self = args.This();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	67 char *path;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	68 mb_img_ldr_t *img_ldr;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	69
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	70 if(argc != 1)
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	71 THROW("Invalid number of arguments (!= 1)");
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	72 if(!args[0]->IsString())
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	73 THROW("Invalid argument type");
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	74
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	75 String::Utf8Value pathutf8(args[0]->ToString());
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	76 path = *pathutf8;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	77
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	78 img_ldr = simple_mb_img_ldr_new(path);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	79 if(img_ldr == NULL)
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	80 THROW("Can not create an image loader");
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	81 WRAP(self, img_ldr);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	82
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	83 return Null();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	84 }
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	85
643 a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	86 static Persistent<FunctionTemplate> xnjsmb_img_ldr_temp;
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	87
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	88 static Handle<Value>
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	89 xnjsmb_img_ldr_new(const Arguments &args) {
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	90 HandleScope scope;
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	91 int argc = args.Length();
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	92 Handle<Value> il_args[1];
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	93 Handle<Object> img_ldr;
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	94 Handle<Function> func;
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	95
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	96 if(argc != 1)
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	97 THROW("Invalid number of arguments (!= 1)");
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	98 if(!args[0]->IsString())
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	99 THROW("Invalid argument type");
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	100
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	101 il_args[0] = args[0];
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	102 func = xnjsmb_img_ldr_temp->GetFunction();
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	103 img_ldr = func->NewInstance(1, il_args);
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	104
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	105 scope.Close(img_ldr);
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	106 return img_ldr;
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	107 }
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	108
640 9016e7e70f7d Group binding for image loader with Doxygen syntax Thinker K.F. Li <thinker@branda.to> parents: 639 diff changeset	109 /* @} */
9016e7e70f7d Group binding for image loader with Doxygen syntax Thinker K.F. Li <thinker@branda.to> parents: 639 diff changeset	110
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	111 /*! \brief Initialize image loader.
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	112 *
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	113 * This function is called by init() in mbfly_njs.cc when the module
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	114 * being loaded.
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	115 */
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	116 void
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	117 xnjsmb_img_ldr_init_mb_rt_temp(Handle<Object> rt_temp) {
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	118 HandleScope scope;
643 a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	119 Handle<FunctionTemplate> img_ldr_temp;
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	120 Handle<FunctionTemplate> img_ldr_new_temp;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	121 Handle<ObjectTemplate> ldr_inst_temp;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	122 Handle<ObjectTemplate> ldr_proto_temp;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	123 Handle<FunctionTemplate> img_ldr_load_temp;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	124 Handle<ObjectTemplate> _img_data_temp;
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	125
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	126 /* Setup object template for img_data_t object for Javascript */
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	127 _img_data_temp = ObjectTemplate::New();
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	128 _img_data_temp->SetInternalFieldCount(1);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	129 img_data_temp = Persistent<ObjectTemplate>::New(_img_data_temp);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	130
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	131 /* Setup img_ldr class */
643 a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	132 img_ldr_temp = FunctionTemplate::New(xnjsmb_img_ldr);
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	133 img_ldr_temp->SetClassName(String::New("img_ldr"));
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	134 ldr_inst_temp = img_ldr_temp->InstanceTemplate();
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	135 ldr_inst_temp->SetInternalFieldCount(1);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	136
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	137 /* Set method load() for img_ldr */
643 a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	138 ldr_proto_temp = img_ldr_temp->PrototypeTemplate();
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	139 img_ldr_load_temp = FunctionTemplate::New(xnjsmb_img_ldr_load);
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	140 SET(ldr_proto_temp, "load", img_ldr_load_temp);
643 a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	141
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	142 xnjsmb_img_ldr_temp = Persistent<FunctionTemplate>::New(img_ldr_temp);
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	143
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	144 /* Initialize img_ldr_new function */
a65720721c60 Fix issue of exception of internal field. Thinker K.F. Li <thinker@branda.to> parents: 640 diff changeset	145 img_ldr_new_temp = FunctionTemplate::New(xnjsmb_img_ldr_new);
639 dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	146 SET(rt_temp, "img_ldr_new", img_ldr_new_temp->GetFunction());
dc32c1c140ae First compilable image loader binding for Javascript Thinker K.F. Li <thinker@branda.to> parents: diff changeset	147 }

Mercurial > MadButterfly

annotate nodejs/image_ldr.cc @ 685:7bb126d42282