// license:BSD-3-Clause // copyright-holders:Ryan Holtz /***************************************************************************** SunPlus SPG2xx-series SoC peripheral emulation (Video) **********************************************************************/ #ifndef MAME_MACHINE_SPG2XX_VIDEO_H #define MAME_MACHINE_SPG2XX_VIDEO_H #pragma once #include "cpu/unsp/unsp.h" #include "screen.h" class spg2xx_video_device : public device_t { public: spg2xx_video_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); DECLARE_WRITE_LINE_MEMBER(vblank); DECLARE_READ16_MEMBER(video_r); DECLARE_WRITE16_MEMBER(video_w); auto sprlimit_read_callback() { return m_sprlimit_read_cb.bind(); }; auto rowscrolloffset_read_callback() { return m_rowscrolloffset_read_cb.bind(); }; auto write_video_irq_callback() { return m_video_irq_cb.bind(); }; protected: enum { PAGE_ENABLE_MASK = 0x0008, PAGE_WALLPAPER_MASK = 0x0004, SPRITE_ENABLE_MASK = 0x0001, SPRITE_COORD_TL_MASK = 0x0002, PAGE_PRIORITY_FLAG_MASK = 0x3000, PAGE_PRIORITY_FLAG_SHIFT = 12, PAGE_TILE_HEIGHT_MASK = 0x00c0, PAGE_TILE_HEIGHT_SHIFT = 6, PAGE_TILE_WIDTH_MASK = 0x0030, PAGE_TILE_WIDTH_SHIFT = 4, TILE_X_FLIP = 0x0004, TILE_Y_FLIP = 0x0008 }; inline void check_video_irq(); static const device_timer_id TIMER_SCREENPOS = 2; virtual void device_start() override; virtual void device_reset() override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; void do_sprite_dma(uint32_t len); enum blend_enable_t : bool { BlendOff = false, BlendOn = true }; enum rowscroll_enable_t : bool { RowScrollOff = false, RowScrollOn = true }; enum flipx_t : bool { FlipXOff = false, FlipXOn = true }; void apply_saturation(const rectangle &cliprect); void apply_fade(const rectangle &cliprect); template void draw(const rectangle &cliprect, uint32_t line, uint32_t xoff, uint32_t yoff, uint32_t bitmap_addr, uint16_t tile, int32_t h, int32_t w, uint8_t bpp, uint32_t yflipmask, uint32_t palette_offset); void draw_bitmap(const rectangle& cliprect, uint32_t scanline, int priority, uint32_t bitmap_addr, uint16_t* regs); void draw_page(const rectangle &cliprect, uint32_t scanline, int priority, uint32_t bitmap_addr, uint16_t *regs); void draw_sprite(const rectangle &cliprect, uint32_t scanline, int priority, uint32_t base_addr); void draw_sprites(const rectangle &cliprect, uint32_t scanline, int priority); uint8_t mix_channel(uint8_t a, uint8_t b); uint32_t m_screenbuf[320 * 240]; uint8_t m_rgb5_to_rgb8[32]; uint32_t m_rgb555_to_rgb888[0x8000]; bool m_hide_page0; bool m_hide_page1; bool m_hide_sprites; bool m_debug_sprites; bool m_debug_blit; bool m_debug_palette; uint8_t m_sprite_index_to_debug; uint16_t m_video_regs[0x100]; devcb_read16 m_sprlimit_read_cb; devcb_read16 m_rowscrolloffset_read_cb; emu_timer *m_screenpos_timer; required_device m_cpu; required_device m_screen; required_shared_ptr m_scrollram; required_shared_ptr m_paletteram; required_shared_ptr m_spriteram; devcb_write_line m_video_irq_cb; }; class spg24x_video_device : public spg2xx_video_device { public: template spg24x_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpu_tag, U &&screen_tag) : spg24x_video_device(mconfig, tag, owner, clock) { m_cpu.set_tag(std::forward(cpu_tag)); m_screen.set_tag(std::forward(screen_tag)); } spg24x_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); }; DECLARE_DEVICE_TYPE(SPG24X_VIDEO, spg24x_video_device) #endif // MAME_MACHINE_SPG2XX_VIDEO_H