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// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
#ifndef MAME_MACHINE_SPG290_PPU_H
#define MAME_MACHINE_SPG290_PPU_H
#pragma once
#include "screen.h"
class spg290_ppu_device : public device_t
{
public:
spg290_ppu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <typename T>
spg290_ppu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&screen_tag)
: spg290_ppu_device(mconfig, tag, owner, clock)
{
m_screen.set_tag(std::forward<T>(screen_tag));
}
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void screen_vblank(int state);
void map(address_map &map);
auto vblank_irq_cb() { return m_vblank_irq_cb.bind(); }
auto space_read_cb() { return m_space_read_cb.bind(); }
protected:
virtual void device_start() override;
virtual void device_reset() override;
uint32_t regs_r(offs_t offset, uint32_t mem_mask);
void regs_w(offs_t offset, uint32_t data, uint32_t mem_mask);
rgb_t blend_colors(const rgb_t &c0, const rgb_t &c1, uint8_t level);
void argb1555(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint16_t posy, uint16_t posx, uint16_t argb, uint8_t blend);
void rgb565(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint16_t posy, uint16_t posx, uint16_t rgb, uint8_t blend);
void blit_sprite(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint32_t control, uint32_t attribute, uint32_t buf_start);
void blit_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint32_t control, uint32_t attribute, int posy, int posx, uint32_t nptr, uint32_t buf_start, uint8_t blend);
void blit_character(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint32_t control, uint32_t attribute, int posy, int posx, uint32_t nptr, uint32_t buf_start, uint8_t blend);
private:
required_device<screen_device> m_screen;
required_shared_ptr<uint32_t> m_sprite_palette_ram;
required_shared_ptr<uint32_t> m_char_palette_ram;
required_shared_ptr<uint32_t> m_hoffset_ram;
required_shared_ptr<uint32_t> m_voffset_ram;
required_shared_ptr<uint32_t> m_sprite_ram;
devcb_write_line m_vblank_irq_cb;
devcb_read32 m_space_read_cb;
uint32_t m_control;
uint32_t m_sprite_control;
uint32_t m_irq_control;
uint32_t m_irq_status;
uint32_t m_sprite_max;
uint32_t m_sprite_buf_start;
uint32_t m_blend_mode;
uint32_t m_frame_buff[3];
uint32_t m_transrgb;
uint32_t m_vcomp_value;
uint32_t m_vcomp_offset;
uint32_t m_vcomp_step;
uint32_t m_irq_timing_v;
uint32_t m_irq_timing_h;
uint32_t m_vblank_lines;
struct spg290_ppu_tx_t
{
uint32_t control;
uint32_t attribute;
uint32_t posx;
uint32_t posy;
uint32_t nptr;
uint32_t blend;
uint32_t buf_start[3];
} m_txs[3];
};
DECLARE_DEVICE_TYPE(SPG290_PPU, spg290_ppu_device)
#endif // MAME_MACHINE_SPG290_PPU_H
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