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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/*********************************************************************
picture.cpp
Image device for still pictures.
*********************************************************************/
#include "emu.h"
#include "picture.h"
#include "png.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// device type definition
DEFINE_DEVICE_TYPE(IMAGE_PICTURE, picture_image_device, "picture_image", "Still Image")
//-------------------------------------------------
// picture_image_device - constructor
//-------------------------------------------------
picture_image_device::picture_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, IMAGE_PICTURE, tag, owner, clock),
device_image_interface(mconfig, *this)
{
}
//-------------------------------------------------
// picture_image_device - destructor
//-------------------------------------------------
picture_image_device::~picture_image_device()
{
}
void picture_image_device::device_start()
{
}
image_init_result picture_image_device::call_load()
{
if (png_read_bitmap(image_core_file(), m_picture) != PNGERR_NONE)
{
m_picture.reset();
// todo: try JPEG here.
return image_init_result::FAIL;
}
return image_init_result::PASS;
}
void picture_image_device::call_unload()
{
if (m_picture.valid())
{
m_picture.reset();
}
}
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