// 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(); } }