WebGLUnsignedIntArray.cpp [plain text]
#include "config.h"
#if ENABLE(3D_CANVAS)
#include "WebGLArrayBuffer.h"
#include "WebGLUnsignedIntArray.h"
namespace WebCore {
PassRefPtr<WebGLUnsignedIntArray> WebGLUnsignedIntArray::create(unsigned length)
{
RefPtr<WebGLArrayBuffer> buffer = WebGLArrayBuffer::create(length, sizeof(unsigned int));
return create(buffer, 0, length);
}
PassRefPtr<WebGLUnsignedIntArray> WebGLUnsignedIntArray::create(unsigned int* array, unsigned length)
{
RefPtr<WebGLUnsignedIntArray> a = WebGLUnsignedIntArray::create(length);
for (unsigned i = 0; i < length; ++i)
a->set(i, array[i]);
return a;
}
PassRefPtr<WebGLUnsignedIntArray> WebGLUnsignedIntArray::create(PassRefPtr<WebGLArrayBuffer> buffer,
unsigned byteOffset,
unsigned length)
{
RefPtr<WebGLArrayBuffer> buf(buffer);
if (!verifySubRange<unsigned int>(buf, byteOffset, length))
return 0;
return adoptRef(new WebGLUnsignedIntArray(buf, byteOffset, length));
}
WebGLUnsignedIntArray::WebGLUnsignedIntArray(PassRefPtr<WebGLArrayBuffer> buffer, unsigned byteOffset, unsigned length)
: WebGLArray(buffer, byteOffset)
, m_size(length)
{
}
unsigned WebGLUnsignedIntArray::length() const {
return m_size;
}
unsigned WebGLUnsignedIntArray::byteLength() const {
return m_size * sizeof(unsigned int);
}
PassRefPtr<WebGLArray> WebGLUnsignedIntArray::slice(int start, int end)
{
unsigned offset, length;
calculateOffsetAndLength(start, end, m_size, &offset, &length);
clampOffsetAndNumElements<unsigned int>(buffer(), m_byteOffset, &offset, &length);
return create(buffer(), offset, length);
}
void WebGLUnsignedIntArray::set(WebGLUnsignedIntArray* array, unsigned offset, ExceptionCode& ec) {
setImpl(array, offset * sizeof(unsigned int), ec);
}
}
#endif // ENABLE(3D_CANVAS)