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Add EXGL cross-platform C++ library

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fbshipit-source-id: 155ef92
This commit is contained in:
Nikhilesh Sigatapu
2016-10-29 02:12:08 +00:00
committed by Exponent GitHub Bot
parent f298e77867
commit 68d2861272
9 changed files with 9388 additions and 0 deletions
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cpp/EXJSConvertTypedArray.h Normal file
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// Adapted from phoboslab/Ejecta on GitHub
// https://github.com/phoboslab/Ejecta/tree/8917cfbc17b3298f99ca7d719cfc57fcb8e43519/Source/Ejecta
// with Android compatibility changes and changes to allow coexisting with
// iOS >=10 built-in TypedArray API
#include <stddef.h>
#include <JavaScriptCore/JSBase.h>
#include "EXJSUtils.h"
#ifdef __cplusplus
extern "C" {
#endif
/*!
@enum JSType
@abstract A constant identifying the Typed Array type of a JSValue.
@constant kJSTypedArrayTypeNone Not a Typed Array.
@constant kJSTypedArrayTypeInt8Array Int8Array
@constant kJSTypedArrayTypeInt16Array Int16Array
@constant kJSTypedArrayTypeInt32Array Int32Array
@constant kJSTypedArrayTypeUint8Array Int8Array
@constant kJSTypedArrayTypeUint8ClampedArray Int8ClampedArray
@constant kJSTypedArrayTypeUint16Array Uint16Array
@constant kJSTypedArrayTypeUint32Array Uint32Array
@constant kJSTypedArrayTypeFloat32Array Float32Array
@constant kJSTypedArrayTypeFloat64Array Float64Array
@constant kJSTypedArrayTypeArrayBuffer ArrayBuffer
*/
// We're now using the constants from JavaScriptCore/JSTypedArray.h so comment this out
/*
typedef enum {
kJSTypedArrayTypeNone = 0,
kJSTypedArrayTypeInt8Array = 1,
kJSTypedArrayTypeInt16Array = 2,
kJSTypedArrayTypeInt32Array = 3,
kJSTypedArrayTypeUint8Array = 4,
kJSTypedArrayTypeUint8ClampedArray = 5,
kJSTypedArrayTypeUint16Array = 6,
kJSTypedArrayTypeUint32Array = 7,
kJSTypedArrayTypeFloat32Array = 8,
kJSTypedArrayTypeFloat64Array = 9,
kJSTypedArrayTypeArrayBuffer = 10
} JSTypedArrayType;
*/
/*!
@function
@abstract Setup the JSContext for use of the Typed Array functions.
@param ctx The execution context to use
*/
void JSContextPrepareTypedArrayAPI(JSContextRef ctx);
/*!
@function
@abstract Returns a JavaScript value's Typed Array type
@param ctx The execution context to use.
@param value The JSObject whose Typed Array type you want to obtain.
@result A value of type JSTypedArrayType that identifies value's Typed Array type
*/
JSTypedArrayType JSObjectGetTypedArrayType(JSContextRef ctx, JSObjectRef object);
/*!
@function
@abstract Creates an empty JavaScript Typed Array with the given number of elements
@param ctx The execution context to use.
@param arrayType A value of type JSTypedArrayType identifying the type of array you want to create
@param numElements The number of elements for the array.
@result A JSObjectRef that is a Typed Array or NULL if there was an error
*/
JSObjectRef JSObjectMakeTypedArrayWithHack(JSContextRef ctx, JSTypedArrayType arrayType, size_t numElements);
/*!
@function
@abstract Creates an empty JavaScript Typed Array with the given data
@param ctx The execution context to use.
@param arrayType A value of type JSTypedArrayType identifying the type of array you want to create
@param data Pointer to start of data to copy
@param length Length of data to copy in bytes
@result A JSObjectRef that is a Typed Array or NULL if there was an error
*/
JSObjectRef JSObjectMakeTypedArrayWithData(JSContextRef ctx, JSTypedArrayType arrayType, void *data, size_t length);
/*!
@function
@abstract Returns a copy of the Typed Array's data
@param ctx The execution context to use.
@param object The JSObject whose Typed Array data you want to obtain.
@param plength Place to put length of data, ignored if NULL
@result Pointer to start of a copy of the Typed Array's data or NULL if the JSObject is not a Typed Array.
The buffer must be free()'d later.
*/
void *JSObjectGetTypedArrayDataMalloc(JSContextRef ctx, JSObjectRef object, size_t *plength);
/*!
@function
@abstract Replaces a Typed Array's data
@param ctx The execution context to use.
@param object The JSObject whose Typed Array data you want to replace
@param data Pointer to start of data to read from
@param length Length of data to read
*/
void JSObjectSetTypedArrayData(JSContextRef ctx, JSObjectRef object, void *data, size_t length);
#ifdef __cplusplus
}
#endif