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-rw-r--r--src/devices/machine/spg_renderer.h121
1 files changed, 121 insertions, 0 deletions
diff --git a/src/devices/machine/spg_renderer.h b/src/devices/machine/spg_renderer.h
new file mode 100644
index 00000000000..b774eacf032
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+++ b/src/devices/machine/spg_renderer.h
@@ -0,0 +1,121 @@
+// license:BSD-3-Clause
+// copyright-holders:David Haywood, Ryan Holtz
+
+#ifndef MAME_MACHINE_SPG_RENDERER_H
+#define MAME_MACHINE_SPG_RENDERER_H
+
+#pragma once
+
+#include "screen.h"
+
+class spg_renderer_device : public device_t
+{
+public:
+ spg_renderer_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+ spg_renderer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ void draw_sprites(bool read_from_csspace, int extended_sprites_mode, bool alt_extrasprite_hack, uint32_t palbank, bool highres, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t spritegfxdata_addr, address_space& spc, uint16_t* paletteram, uint16_t* spriteram, int sprlimit);
+ void draw_page(bool read_from_csspace, bool has_extended_tilemaps, bool use_alt_tile_addressing, uint32_t palbank, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t tilegfxdata_addr, uint16_t* scrollregs, uint16_t* tilemapregs, address_space& spc, uint16_t* paletteram, uint16_t* scrollram, uint32_t which);
+ void new_line(const rectangle& cliprect);
+
+ void apply_saturation_and_fade(bitmap_rgb32& bitmap, const rectangle& cliprect, int scanline);
+
+ void set_video_reg_1c(uint16_t val) { m_video_regs_1c = val; update_vcmp_table(); }
+ void set_video_reg_1d(uint16_t val) { m_video_regs_1d = val; update_vcmp_table(); }
+ void set_video_reg_1e(uint16_t val) { m_video_regs_1e = val; update_vcmp_table(); }
+ void set_video_reg_2a(uint16_t val) { m_video_regs_2a = val; }
+ void set_video_reg_30(uint16_t val)
+ {
+ if (m_video_regs_30 != val)
+ m_brightness_or_saturation_dirty = true;
+
+ m_video_regs_30 = val;
+ }
+ void set_video_reg_3c(uint16_t val)
+ {
+ if (m_video_regs_3c != val)
+ m_brightness_or_saturation_dirty = true;
+
+ m_video_regs_3c = val;
+ }
+ void set_video_reg_42(uint16_t val) { m_video_regs_42 = val; }
+
+ uint16_t get_video_reg_1c(void) { return m_video_regs_1c; }
+ uint16_t get_video_reg_1d(void) { return m_video_regs_1d; }
+ uint16_t get_video_reg_1e(void) { return m_video_regs_1e; }
+ uint16_t get_video_reg_2a(void) { return m_video_regs_2a; }
+ uint16_t get_video_reg_30(void) { return m_video_regs_30; }
+ uint16_t get_video_reg_3c(void) { return m_video_regs_3c; }
+ uint16_t get_video_reg_42(void) { return m_video_regs_42; }
+
+ // used by some hack logic for the gpl16250 rendering for now
+ void set_video_reg_7f(uint16_t val) { m_video_regs_7f = val; }
+ uint16_t get_video_reg_7f(void) { return m_video_regs_7f; }
+
+ auto space_read_callback() { return m_space_read_cb.bind(); }
+ void set_video_spaces(address_space* cpuspace, address_space* cs_space, uint32_t csbase) { m_cpuspace = cpuspace; m_cs_space = cs_space; m_csbase = csbase; }
+
+protected:
+
+ virtual void device_start() override ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+
+ enum blend_enable_t : const bool
+ {
+ BlendOff = false,
+ BlendOn = true
+ };
+
+ enum flipx_t : const bool
+ {
+ FlipXOff = false,
+ FlipXOn = true
+ };
+
+ template<spg_renderer_device::blend_enable_t Blend, spg_renderer_device::flipx_t FlipX>
+ inline void draw_tilestrip(bool read_from_csspace, uint32_t screenwidth, uint32_t drawwidthmask, const rectangle& cliprect, uint32_t tile_h, uint32_t tile_w, uint32_t tilegfxdata_addr, uint32_t tile, uint32_t tile_scanline, int drawx, bool flip_y, uint32_t palette_offset, const uint32_t nc_bpp, const uint32_t bits_per_row, const uint32_t words_per_tile, address_space &spc, uint16_t* palette, uint8_t blendlevel);
+
+ inline void draw_tilestrip(bool read_from_csspace, uint32_t screenwidth, uint32_t drawwidthmask, spg_renderer_device::blend_enable_t blend, spg_renderer_device::flipx_t flip_x, const rectangle& cliprect, uint32_t tile_h, uint32_t tile_w, uint32_t tilegfxdata_addr, uint32_t tile, uint32_t tile_scanline, int drawx, bool flip_y, uint32_t palette_offset, const uint32_t nc_bpp, const uint32_t bits_per_row, const uint32_t words_per_tile, address_space& spc, uint16_t* paletteram, uint8_t blendlevel);
+
+ inline void draw_sprite(bool read_from_csspace, int extended_sprites_mode, bool alt_extrasprite_hack, uint32_t palbank, bool highres, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t spritegfxdata_addr, uint32_t base_addr, address_space& spc, uint16_t* paletteram, uint16_t* spriteram);
+
+ inline void draw_linemap(bool has_extended_tilemaps, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t tilegfxdata_addr, uint16_t* scrollregs, uint16_t* tilemapregs, address_space& spc, uint16_t* paletteram);
+
+ inline uint8_t mix_channel(uint8_t a, uint8_t b, uint8_t alpha);
+
+ uint8_t m_rgb5_to_rgb8[32];
+ uint32_t m_rgb555_to_rgb888[0x8000];
+ uint32_t m_rgb555_to_rgb888_current[0x8000];
+
+private:
+
+ void update_vcmp_table();
+
+ uint16_t m_video_regs_1c;
+ uint16_t m_video_regs_1d;
+ uint16_t m_video_regs_1e;
+
+ uint16_t m_video_regs_2a;
+ uint16_t m_video_regs_42;
+
+ uint16_t m_video_regs_30;
+ uint16_t m_video_regs_3c;
+
+ uint16_t m_video_regs_7f;
+
+ uint32_t m_ycmp_table[480];
+
+ devcb_read16 m_space_read_cb;
+
+ address_space* m_cpuspace;
+ address_space* m_cs_space;
+ uint32_t m_csbase;
+ bool m_brightness_or_saturation_dirty;
+ void update_palette_lookup(void);
+ uint16_t m_linebuf[640];
+};
+
+DECLARE_DEVICE_TYPE(SPG_RENDERER, spg_renderer_device)
+
+
+#endif // MAME_MACHINE_SPG_RENDERER_H