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-rw-r--r--src/mame/sega/saturn.h459
1 files changed, 459 insertions, 0 deletions
diff --git a/src/mame/sega/saturn.h b/src/mame/sega/saturn.h
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+++ b/src/mame/sega/saturn.h
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+// license:LGPL-2.1+
+// copyright-holders:David Haywood, Angelo Salese, Olivier Galibert, Mariusz Wojcieszek, R. Belmont
+#ifndef MAME_SEGA_SATURN_H
+#define MAME_SEGA_SATURN_H
+
+#pragma once
+
+#include "bus/generic/slot.h"
+#include "bus/generic/carts.h"
+
+#include "cpu/m68000/m68000.h"
+#include "cpu/sh/sh7604.h"
+
+#include "315-5881_crypt.h"
+#include "315-5838_317-0229_comp.h"
+#include "machine/sega_scu.h"
+#include "machine/smpc.h"
+#include "machine/timer.h"
+
+#include "sound/scsp.h"
+
+#include "emupal.h"
+#include "screen.h"
+
+class saturn_state : public driver_device
+{
+public:
+ saturn_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_rom(*this, "bios"),
+ m_workram_l(*this, "workram_l"),
+ m_workram_h(*this, "workram_h"),
+ m_sound_ram(*this, "sound_ram"),
+ m_fake_comms(*this, "fake"),
+ m_maincpu(*this, "maincpu"),
+ m_slave(*this, "slave"),
+ m_audiocpu(*this, "audiocpu"),
+ m_scsp(*this, "scsp"),
+ m_smpc_hle(*this, "smpc"),
+ m_scu(*this, "scu"),
+ m_gfxdecode(*this, "gfxdecode"),
+ m_screen(*this, "screen"),
+ m_palette(*this, "palette")
+ {
+ }
+
+ void scsp_irq(offs_t offset, uint8_t data);
+
+ // SMPC HLE delegates
+ void master_sh2_reset_w(int state);
+ void master_sh2_nmi_w(int state);
+ void slave_sh2_reset_w(int state);
+ void sound_68k_reset_w(int state);
+ void system_reset_w(int state);
+ void system_halt_w(int state);
+ void dot_select_w(int state);
+
+ void m68k_reset_callback(int state);
+
+protected:
+ required_region_ptr<uint32_t> m_rom;
+ required_shared_ptr<uint32_t> m_workram_l;
+ required_shared_ptr<uint32_t> m_workram_h;
+ required_shared_ptr<uint16_t> m_sound_ram;
+ optional_ioport m_fake_comms;
+
+ memory_region *m_cart_reg[4];
+ std::unique_ptr<uint8_t[]> m_backupram;
+// std::unique_ptr<uint32_t[]> m_scu_regs;
+ std::unique_ptr<uint16_t[]> m_vdp2_regs;
+ std::unique_ptr<uint32_t[]> m_vdp2_vram;
+ std::unique_ptr<uint32_t[]> m_vdp2_cram;
+ std::unique_ptr<uint32_t[]> m_vdp1_vram;
+ std::unique_ptr<uint16_t[]> m_vdp1_regs;
+
+ uint8_t m_en_68k = 0;
+
+ int m_minit_boost = 0;
+ int m_sinit_boost = 0;
+ attotime m_minit_boost_timeslice;
+ attotime m_sinit_boost_timeslice;
+
+ struct {
+ std::unique_ptr<uint16_t * []> framebuffer_display_lines;
+ int framebuffer_mode = 0;
+ int framebuffer_double_interlace = 0;
+ int fbcr_accessed = 0;
+ int framebuffer_width = 0;
+ int framebuffer_height = 0;
+ int framebuffer_current_display = 0;
+ int framebuffer_current_draw = 0;
+ int framebuffer_clear_on_next_frame = 0;
+ rectangle system_cliprect;
+ rectangle user_cliprect;
+ std::unique_ptr<uint16_t []> framebuffer[2];
+ std::unique_ptr<uint16_t * []> framebuffer_draw_lines;
+ std::unique_ptr<uint8_t []> gfx_decode;
+ uint16_t lopr = 0;
+ uint16_t copr = 0;
+ uint16_t ewdr = 0;
+
+ int local_x = 0;
+ int local_y = 0;
+
+ emu_timer * draw_end_timer = nullptr;
+ }m_vdp1;
+
+ struct {
+ std::unique_ptr<uint8_t[]> gfx_decode;
+ bitmap_rgb32 roz_bitmap[2];
+ uint8_t dotsel = 0;
+ uint8_t pal = 0;
+ uint8_t odd = 0;
+ uint16_t h_count = 0;
+ uint16_t v_count = 0;
+ uint8_t exltfg = 0;
+ uint8_t exsyfg = 0;
+ int old_crmd = 0;
+ int old_tvmd = 0;
+ }m_vdp2;
+
+ required_device<sh7604_device> m_maincpu;
+ required_device<sh7604_device> m_slave;
+ required_device<m68000_base_device> m_audiocpu;
+ required_device<scsp_device> m_scsp;
+ required_device<smpc_hle_device> m_smpc_hle;
+ required_device<sega_scu_device> m_scu;
+ required_device<gfxdecode_device> m_gfxdecode;
+ required_device<screen_device> m_screen;
+ required_device<palette_device> m_palette;
+
+ bitmap_rgb32 m_tmpbitmap;
+ DECLARE_VIDEO_START(stv_vdp2);
+ uint32_t screen_update_stv_vdp2(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ TIMER_DEVICE_CALLBACK_MEMBER(saturn_scanline);
+ TIMER_DEVICE_CALLBACK_MEMBER(saturn_slave_scanline);
+
+
+ TIMER_CALLBACK_MEMBER(vdp1_draw_end);
+ void saturn_soundram_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
+ uint16_t saturn_soundram_r(offs_t offset);
+ void minit_w(uint32_t data);
+ void sinit_w(uint32_t data);
+ void saturn_minit_w(uint32_t data);
+ void saturn_sinit_w(uint32_t data);
+ uint8_t saturn_backupram_r(offs_t offset);
+ void saturn_backupram_w(offs_t offset, uint8_t data);
+
+ int m_scsp_last_line = 0;
+
+ uint16_t saturn_vdp1_regs_r(offs_t offset);
+ uint32_t saturn_vdp1_vram_r(offs_t offset);
+ uint32_t saturn_vdp1_framebuffer0_r(offs_t offset, uint32_t mem_mask = ~0);
+
+ void saturn_vdp1_regs_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
+ void saturn_vdp1_vram_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
+ void saturn_vdp1_framebuffer0_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
+
+ uint32_t saturn_vdp2_vram_r(offs_t offset);
+ uint32_t saturn_vdp2_cram_r(offs_t offset);
+ uint16_t saturn_vdp2_regs_r(offs_t offset);
+
+ void saturn_vdp2_vram_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
+ void saturn_vdp2_cram_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
+ void saturn_vdp2_regs_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
+
+
+ /* VDP1 */
+ void stv_set_framebuffer_config();
+ void stv_prepare_framebuffers();
+ void stv_vdp1_change_framebuffers();
+ void video_update_vdp1();
+ void stv_vdp1_process_list();
+ void stv_vdp1_set_drawpixel();
+
+ void stv_vdp1_draw_normal_sprite(const rectangle &cliprect, int sprite_type);
+ void stv_vdp1_draw_scaled_sprite(const rectangle &cliprect);
+ void stv_vdp1_draw_distorted_sprite(const rectangle &cliprect);
+ void stv_vdp1_draw_poly_line(const rectangle &cliprect);
+ void stv_vdp1_draw_line(const rectangle &cliprect);
+ int x2s(int v);
+ int y2s(int v);
+ void vdp1_fill_quad(const rectangle &cliprect, int patterndata, int xsize, const struct spoint *q);
+ void vdp1_fill_line(const rectangle &cliprect, int patterndata, int xsize, int32_t y, int32_t x1, int32_t x2, int32_t u1, int32_t u2, int32_t v1, int32_t v2);
+ void (saturn_state::*drawpixel)(int x, int y, int patterndata, int offsetcnt);
+ void drawpixel_poly(int x, int y, int patterndata, int offsetcnt);
+ void drawpixel_8bpp_trans(int x, int y, int patterndata, int offsetcnt);
+ void drawpixel_4bpp_notrans(int x, int y, int patterndata, int offsetcnt);
+ void drawpixel_4bpp_trans(int x, int y, int patterndata, int offsetcnt);
+ void drawpixel_generic(int x, int y, int patterndata, int offsetcnt);
+ void vdp1_fill_slope(const rectangle &cliprect, int patterndata, int xsize,
+ int32_t x1, int32_t x2, int32_t sl1, int32_t sl2, int32_t *nx1, int32_t *nx2,
+ int32_t u1, int32_t u2, int32_t slu1, int32_t slu2, int32_t *nu1, int32_t *nu2,
+ int32_t v1, int32_t v2, int32_t slv1, int32_t slv2, int32_t *nv1, int32_t *nv2,
+ int32_t _y1, int32_t y2);
+ void stv_vdp1_setup_shading_for_line(int32_t y, int32_t x1, int32_t x2,
+ int32_t r1, int32_t g1, int32_t b1,
+ int32_t r2, int32_t g2, int32_t b2);
+ void stv_vdp1_setup_shading_for_slope(
+ int32_t x1, int32_t x2, int32_t sl1, int32_t sl2, int32_t *nx1, int32_t *nx2,
+ int32_t r1, int32_t r2, int32_t slr1, int32_t slr2, int32_t *nr1, int32_t *nr2,
+ int32_t g1, int32_t g2, int32_t slg1, int32_t slg2, int32_t *ng1, int32_t *ng2,
+ int32_t b1, int32_t b2, int32_t slb1, int32_t slb2, int32_t *nb1, int32_t *nb2,
+ int32_t _y1, int32_t y2);
+ uint16_t stv_vdp1_apply_gouraud_shading(int x, int y, uint16_t pix);
+ void stv_vdp1_setup_shading(const struct spoint* q, const rectangle &cliprect);
+ uint8_t stv_read_gouraud_table();
+ void stv_clear_gouraud_shading();
+
+ void stv_clear_framebuffer(int which_framebuffer);
+ void stv_vdp1_state_save_postload();
+ int stv_vdp1_start();
+
+ struct stv_vdp1_poly_scanline
+ {
+ int32_t x[2]{};
+ int32_t b[2]{};
+ int32_t g[2]{};
+ int32_t r[2]{};
+ int32_t db = 0;
+ int32_t dg = 0;
+ int32_t dr = 0;
+ };
+
+ struct stv_vdp1_poly_scanline_data
+ {
+ int32_t sy = 0, ey = 0;
+ struct stv_vdp1_poly_scanline scanline[512];
+ };
+
+ std::unique_ptr<struct stv_vdp1_poly_scanline_data> stv_vdp1_shading_data;
+
+ struct stv_vdp2_sprite_list
+ {
+ int CMDCTRL = 0, CMDLINK = 0, CMDPMOD = 0, CMDCOLR = 0, CMDSRCA = 0, CMDSIZE = 0, CMDGRDA = 0;
+ int CMDXA = 0, CMDYA = 0;
+ int CMDXB = 0, CMDYB = 0;
+ int CMDXC = 0, CMDYC = 0;
+ int CMDXD = 0, CMDYD = 0;
+
+ int ispoly = 0;
+
+ } stv2_current_sprite;
+
+ /* Gouraud shading */
+
+ struct _stv_gouraud_shading
+ {
+ /* Gouraud shading table */
+ uint16_t GA = 0;
+ uint16_t GB = 0;
+ uint16_t GC = 0;
+ uint16_t GD = 0;
+ } stv_gouraud_shading;
+
+ uint16_t m_sprite_colorbank = 0;
+
+ /* VDP1 Framebuffer handling */
+ int stv_sprite_priorities_used[8]{};
+ int stv_sprite_priorities_usage_valid = 0;
+ uint8_t stv_sprite_priorities_in_fb_line[512][8]{};
+
+
+ /* VDP2 */
+
+ uint8_t get_vblank();
+ uint8_t get_hblank();
+ int get_hcounter();
+ int get_vcounter();
+ int get_vblank_duration();
+ int get_hblank_duration();
+ int get_pixel_clock();
+ uint8_t get_odd_bit();
+ void stv_vdp2_dynamic_res_change();
+ int get_vblank_start_position();
+ int get_ystep_count();
+
+ void refresh_palette_data();
+ inline int stv_vdp2_window_process(int x,int y);
+ void stv_vdp2_get_window0_coordinates(int *s_x, int *e_x, int *s_y, int *e_y, int y);
+ void stv_vdp2_get_window1_coordinates(int *s_x, int *e_x, int *s_y, int *e_y, int y);
+ int get_window_pixel(int s_x,int e_x,int s_y,int e_y,int x, int y,uint8_t win_num);
+ int stv_vdp2_apply_window_on_layer(rectangle &cliprect);
+
+ void stv_vdp2_draw_basic_tilemap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_basic_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void draw_4bpp_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void draw_8bpp_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void draw_11bpp_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void draw_rgb15_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void draw_rgb32_bitmap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
+ void stv_vdp2_drawgfxzoom(bitmap_rgb32 &dest_bmp,const rectangle &clip,gfx_element *gfx, uint32_t code,uint32_t color,int flipx,int flipy,int sx,int sy,int transparency,int scalex, int scaley,int sprite_screen_width, int sprite_screen_height, int alpha);
+ void stv_vdp2_drawgfxzoom_rgb555(bitmap_rgb32 &dest_bmp,const rectangle &clip,uint32_t code,uint32_t color,int flipx,int flipy,int sx,int sy,int transparency,int scalex, int scaley,int sprite_screen_width, int sprite_screen_height, int alpha);
+ void stv_vdp2_drawgfx_rgb555(bitmap_rgb32 &dest_bmp, const rectangle &clip, uint32_t code, int flipx, int flipy, int sx, int sy, int transparency, int alpha);
+ void stv_vdp2_drawgfx_rgb888(bitmap_rgb32 &dest_bmp, const rectangle &clip, uint32_t code, int flipx, int flipy, int sx, int sy, int transparency, int alpha);
+
+ void stv_vdp2_drawgfx_alpha(bitmap_rgb32 &dest_bmp,const rectangle &clip,gfx_element *gfx, uint32_t code,uint32_t color, int flipx,int flipy,int offsx,int offsy, int transparency, int alpha);
+ void stv_vdp2_drawgfx_transpen(bitmap_rgb32 &dest_bmp,const rectangle &clip,gfx_element *gfx, uint32_t code,uint32_t color, int flipx,int flipy,int offsx,int offsy, int transparency);
+
+
+ void stv_vdp2_draw_rotation_screen(bitmap_rgb32 &bitmap, const rectangle &cliprect, int iRP);
+ void stv_vdp2_check_tilemap_with_linescroll(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_check_tilemap(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_copy_roz_bitmap(bitmap_rgb32 &bitmap, bitmap_rgb32 &roz_bitmap, const rectangle &cliprect, int iRP, int planesizex, int planesizey, int planerenderedsizex, int planerenderedsizey);
+ inline bool stv_vdp2_roz_window(int x, int y);
+ inline bool stv_vdp2_roz_mode3_window(int x, int y, int rot_parameter);
+ inline int get_roz_window_pixel(int s_x,int e_x,int s_y,int e_y,int x, int y,uint8_t winenable,uint8_t winarea);
+ void stv_vdp2_fill_rotation_parameter_table(uint8_t rot_parameter);
+ uint8_t stv_vdp2_check_vram_cycle_pattern_registers(uint8_t access_command_pnmdr, uint8_t access_command_cpdr, uint8_t bitmap_enable);
+ uint8_t stv_vdp2_is_rotation_applied();
+ uint8_t stv_vdp2_are_map_registers_equal();
+ void stv_vdp2_get_map_page(int x, int y, int *_map, int *_page);
+
+ void stv_vdp2_draw_mosaic(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint8_t is_roz);
+ void stv_vdp2_fade_effects();
+ void stv_vdp2_compute_color_offset(int *r, int *g, int *b, int cor);
+ void stv_vdp2_compute_color_offset_UINT32(rgb_t *rgb, int cor);
+ void stv_vdp2_check_fade_control_for_layer();
+
+ void stv_vdp2_draw_line(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_back(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_NBG0(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_NBG1(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_NBG2(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_NBG3(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void stv_vdp2_draw_RBG0(bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void draw_sprites(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint8_t pri);
+ int true_vcount[263][4];
+
+ void stv_vdp2_state_save_postload();
+ void stv_vdp2_exit();
+ int stv_vdp2_start();
+
+ uint8_t m_vdpdebug_roz = 0;
+
+ struct stv_vdp2_tilemap_capabilities
+ {
+ uint8_t enabled = 0;
+ uint8_t transparency = 0;
+ uint8_t colour_calculation_enabled = 0;
+ uint8_t colour_depth = 0;
+ uint8_t alpha = 0;
+ uint8_t tile_size = 0;
+ uint8_t bitmap_enable = 0;
+ uint8_t bitmap_size = 0;
+ uint8_t bitmap_palette_number = 0;
+ uint8_t bitmap_map = 0;
+ uint16_t map_offset[16]{};
+ uint8_t map_count = 0;
+
+ uint8_t pattern_data_size = 0;
+ uint8_t character_number_supplement = 0;
+ uint8_t special_priority_register = 0;
+ uint8_t special_colour_control_register = 0;
+ uint8_t supplementary_palette_bits = 0;
+ uint8_t supplementary_character_bits = 0;
+
+ int16_t scrollx = 0;
+ int16_t scrolly = 0;
+ uint32_t incx = 0, incy = 0;
+
+ uint8_t linescroll_enable = 0;
+ uint8_t linescroll_interval = 0;
+ uint32_t linescroll_table_address = 0;
+ uint8_t vertical_linescroll_enable = 0;
+ uint8_t vertical_cell_scroll_enable = 0;
+ uint8_t linezoom_enable = 0;
+
+ uint8_t plane_size = 0;
+ uint8_t colour_ram_address_offset = 0;
+ uint8_t fade_control = 0;
+ struct{
+ uint8_t logic = 0;
+ uint8_t enabled[2]{};
+ uint8_t area[2]{};
+ }window_control;
+
+ uint8_t line_screen_enabled = 0;
+ uint8_t mosaic_screen_enabled = 0;
+ bool roz_mode3 = false;
+
+ int layer_name = 0; /* just to keep track */
+ } stv2_current_tilemap;
+
+ struct rotation_table
+ {
+ int32_t xst = 0;
+ int32_t yst = 0;
+ int32_t zst = 0;
+ int32_t dxst = 0;
+ int32_t dyst = 0;
+ int32_t dx = 0;
+ int32_t dy = 0;
+ int32_t A = 0;
+ int32_t B = 0;
+ int32_t C = 0;
+ int32_t D = 0;
+ int32_t E = 0;
+ int32_t F = 0;
+ int32_t px = 0;
+ int32_t py = 0;
+ int32_t pz = 0;
+ int32_t cx = 0;
+ int32_t cy = 0;
+ int32_t cz = 0;
+ int32_t mx = 0;
+ int32_t my = 0;
+ int32_t kx = 0;
+ int32_t ky = 0;
+ uint32_t kast = 0;
+ int32_t dkast = 0;
+ int32_t dkax = 0;
+
+ } stv_current_rotation_parameter_table;
+
+ struct _stv_vdp2_layer_data_placement
+ {
+ uint32_t map_offset_min = 0;
+ uint32_t map_offset_max = 0;
+ uint32_t tile_offset_min = 0;
+ uint32_t tile_offset_max = 0;
+ } stv_vdp2_layer_data_placement;
+
+ struct _stv_rbg_cache_data
+ {
+ uint8_t watch_vdp2_vram_writes = 0;
+ uint8_t is_cache_dirty = 0;
+
+ uint32_t map_offset_min[2]{ 0, 0 };
+ uint32_t map_offset_max[2]{ 0, 0 };
+ uint32_t tile_offset_min[2]{ 0, 0 };
+ uint32_t tile_offset_max[2]{ 0, 0 };
+
+ struct stv_vdp2_tilemap_capabilities layer_data[2];
+
+ } stv_rbg_cache_data;
+
+// void scudsp_end_w(int state);
+// uint16_t scudsp_dma_r(offs_t offset);
+// void scudsp_dma_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
+};
+
+
+// These two clocks are synthesized by the 315-5746
+#define MASTER_CLOCK_352 XTAL(14'318'181)*4
+#define MASTER_CLOCK_320 XTAL(14'318'181)*3.75
+#define CEF_1 m_vdp1_regs[0x010/2]|=0x0002
+#define CEF_0 m_vdp1_regs[0x010/2]&=~0x0002
+#define BEF_1 m_vdp1_regs[0x010/2]|=0x0001
+#define BEF_0 m_vdp1_regs[0x010/2]&=~0x0001
+#define STV_VDP1_TVMR ((m_vdp1_regs[0x000/2])&0xffff)
+#define STV_VDP1_VBE ((STV_VDP1_TVMR & 0x0008) >> 3)
+#define STV_VDP1_TVM ((STV_VDP1_TVMR & 0x0007) >> 0)
+
+
+extern gfx_decode_entry const gfx_stv[];
+
+#endif // MAME_SEGA_SATURN_H