It helps to add the new files. (nw)

src/devices/bus/a2gameio/computereyes.cpp

@@ -0,0 +1,113 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+    Digital Vision ComputerEyes (original gameport version)
+
+*********************************************************************/
+
+#include "emu.h"
+#include "bus/a2gameio/computereyes.h"
+
+//**************************************************************************
+//  GLOBAL VARIABLES
+//**************************************************************************
+
+// device type definition
+DEFINE_DEVICE_TYPE(APPLE2_COMPUTEREYES, apple2_compeyes_device, "a2ceyes", "Digital Vision ComputerEyes")
+
+//**************************************************************************
+//  DEVICE IMPLEMENTATION
+//**************************************************************************
+
+apple2_compeyes_device::apple2_compeyes_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+	: device_t(mconfig, APPLE2_COMPUTEREYES, tag, owner, clock)
+	, device_a2gameio_interface(mconfig, *this)
+	, m_picture(*this, "srcimg")
+{
+}
+
+void apple2_compeyes_device::device_add_mconfig(machine_config &config)
+{
+	IMAGE_PICTURE(config, m_picture);
+}
+
+void apple2_compeyes_device::device_start()
+{
+}
+
+void apple2_compeyes_device::device_reset()
+{
+	m_x = m_y = m_an1 = m_an2 = m_an3 = m_level = 0;
+	m_bitmap = &m_picture->get_bitmap();
+
+	// convert arbitrary sized ARGB32 image to a 280x192 image with 256 levels of grayscale
+	double stepx = (double)m_bitmap->width() / 280.0;
+	double stepy = (double)m_bitmap->height() / 192.0;
+
+	std::fill_n(m_a2_bitmap, 280*192, 0);
+
+	for (int y = 0; y < 192; y++)
+	{
+		for (int x = 0; x < 280; x++)
+		{
+			u32 pixel = m_bitmap->pix((int)((double)y * stepy), (int)((double)x * stepx));
+			double mono = ((0.2126 * (double)(((pixel>>16) & 0xff) / 255.0)) +
+				   (0.7152 * (double)(((pixel>>8) & 0xff) / 255.0)) +
+				   (0.0722 * (double)((pixel& 0xff) / 255.0)));
+			m_a2_bitmap[(y*280)+x] = (u8)(mono * 255.0);
+		}
+	}
+}
+
+READ_LINE_MEMBER(apple2_compeyes_device::sw0_r)
+{
+	return 0;
+}
+
+READ_LINE_MEMBER(apple2_compeyes_device::sw1_r)
+{
+	// to avoid triggering the self-test on //e, return only 0
+	// for the first 2 seconds of emulation.
+	if (machine().time().seconds() < 2)
+	{
+		return 0;
+	}
+
+	int res = m_a2_bitmap[(m_y*280)+m_x] > m_level ? 1 : 0;
+//  if (m_a2_bitmap[(m_y*280)+m_x] != 0)
+//      printf("Read pixel at (%d, %d) = %d (pix %d, level %d)\n", m_x, m_y, res, m_a2_bitmap[(m_y*280)+m_x], m_level);
+	m_y++;
+	if (m_y >= 192)
+	{
+		if (m_x < 279)
+		{
+			m_x++;
+		}
+		m_y = 0;
+	}
+	return res;
+}
+
+WRITE_LINE_MEMBER(apple2_compeyes_device::an0_w)
+{
+	m_x =  m_y = 0;
+}
+
+WRITE_LINE_MEMBER(apple2_compeyes_device::an1_w)
+{
+	m_an1 = state;
+	m_level = (128 * m_an2) + (64 * m_an1) + (32 * m_an3);
+}
+
+WRITE_LINE_MEMBER(apple2_compeyes_device::an2_w)
+{
+	m_an2 = state;
+	m_level = (128 * m_an2) + (64 * m_an1) + (32 * m_an3);
+}
+
+WRITE_LINE_MEMBER(apple2_compeyes_device::an3_w)
+{
+	m_an3 = state;
+	m_level = (128 * m_an2) + (64 * m_an1) + (32 * m_an3);
+}

src/devices/bus/a2gameio/computereyes.h

@@ -0,0 +1,50 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+    Digital Vision ComputerEyes (original gameport version)
+
+*********************************************************************/
+
+#ifndef MAME_BUS_A2GAMEIO_COMPEYES_H
+#define MAME_BUS_A2GAMEIO_COMPEYES_H 1
+
+#pragma once
+
+#include "bus/a2gameio/gameio.h"
+#include "bitmap.h"
+#include "imagedev/picture.h"
+
+// ======================> apple2_compeyes_device
+
+class apple2_compeyes_device : public device_t, public device_a2gameio_interface
+{
+public:
+	// construction/destruction
+	apple2_compeyes_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+	// device-level overrides
+	virtual void device_add_mconfig(machine_config &config) override;
+	virtual void device_start() override;
+	virtual void device_reset() override;
+
+	// device_a2gameio_interface overrides
+	virtual DECLARE_READ_LINE_MEMBER(sw0_r) override;
+	virtual DECLARE_READ_LINE_MEMBER(sw1_r) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an0_w) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an1_w) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an2_w) override;
+	virtual DECLARE_WRITE_LINE_MEMBER(an3_w) override;
+
+private:
+	required_device<picture_image_device> m_picture;
+	int m_x, m_y, m_an1, m_an2, m_an3, m_level;
+	u8 m_a2_bitmap[280*192];
+	bitmap_argb32 *m_bitmap;
+};
+
+// device type declaration
+DECLARE_DEVICE_TYPE(APPLE2_COMPUTEREYES, apple2_compeyes_device)
+
+#endif // MAME_BUS_A2GAMEIO_COMPEYES_H