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https://github.com/holub/mame
synced 2025-05-22 21:58:57 +03:00
Moved the implementation for the Sega 315-5124, 315-5246, and 315-5378 video chips from MESS to src/emu/video.
This commit is contained in:
Wilbert Pol
parent
611780dd86
commit
65d63e8e0b
2
.gitattributes
vendored
2
.gitattributes
vendored
@ -1301,6 +1301,8 @@ src/emu/validity.c svneol=native#text/plain
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src/emu/validity.h svneol=native#text/plain
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src/emu/video.c svneol=native#text/plain
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src/emu/video.h svneol=native#text/plain
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src/emu/video/315_5124.c -text svneol=native#test/plain
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src/emu/video/315_5124.h -text svneol=native#test/plain
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src/emu/video/cdp1861.c svneol=native#text/plain
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src/emu/video/cdp1861.h svneol=native#text/plain
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src/emu/video/cdp1862.c svneol=native#text/plain
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@ -261,6 +261,7 @@ EMUMACHINEOBJS = \
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$(EMUMACHINE)/z8536.o \
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EMUVIDEOOBJS = \
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$(EMUVIDEO)/315_5124.o \
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$(EMUVIDEO)/cdp1861.o \
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$(EMUVIDEO)/cdp1862.o \
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$(EMUVIDEO)/crt9007.o \
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1704
src/emu/video/315_5124.c
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1704
src/emu/video/315_5124.c
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File diff suppressed because it is too large
Load Diff
211
src/emu/video/315_5124.h
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211
src/emu/video/315_5124.h
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@ -0,0 +1,211 @@
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/*************************************************************************
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sega315_5124.h
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Implementation of Sega VDP chips used in System E, Master System and Game Gear
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**************************************************************************/
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#ifndef __SEGA315_5124_H__
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#define __SEGA315_5124_H__
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#include "devcb.h"
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/***************************************************************************
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CONSTANTS
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***************************************************************************/
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#define SEGA315_5124_WIDTH 342 /* 342 pixels */
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#define SEGA315_5124_HEIGHT_NTSC 262 /* 262 lines */
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#define SEGA315_5124_HEIGHT_PAL 313 /* 313 lines */
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#define SEGA315_5124_LBORDER_START (1 + 2 + 14 + 8)
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#define SEGA315_5124_LBORDER_WIDTH 13 /* 13 pixels */
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#define SEGA315_5124_RBORDER_WIDTH 15 /* 15 pixels */
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#define SEGA315_5124_TBORDER_START (3 + 13)
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#define SEGA315_5124_NTSC_192_TBORDER_HEIGHT (0x1b) /* 27 lines */
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//#define SEGA315_5124_NTSC_192_BBORDER_HEIGHT (0x18) /* 24 lines */
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#define SEGA315_5124_NTSC_224_TBORDER_HEIGHT (0x0b) /* 11 lines */
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//#define SEGA315_5124_NTSC_224_BBORDER_HEIGHT (0x08) /* 8 lines */
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//#define SEGA315_5124_PAL_192_TBORDER_HEIGHT (0x36) /* 54 lines */
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//#define SEGA315_5124_PAL_192_BBORDER_HEIGHT (0x30) /* 48 lines */
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//#define SEGA315_5124_PAL_224_TBORDER_HEIGHT (0x26) /* 38 lines */
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//#define SEGA315_5124_PAL_224_BBORDER_HEIGHT (0x20) /* 32 lines */
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#define SEGA315_5124_PAL_240_TBORDER_HEIGHT (0x1e) /* 30 lines */
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//#define SEGA315_5124_PAL_240_BBORDER_HEIGHT (0x18) /* 24 lines */
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#define SEGA315_5124_PALETTE_SIZE (64+16)
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#define SEGA315_5378_PALETTE_SIZE 4096
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PALETTE_INIT( sega315_5124 );
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PALETTE_INIT( sega315_5378 );
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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typedef struct _sega315_5124_interface sega315_5124_interface;
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struct _sega315_5124_interface
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{
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bool m_is_pal; /* false = NTSC, true = PAL */
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const char *m_screen_tag;
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devcb_write_line m_int_callback; /* Interrupt callback function */
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devcb_write_line m_pause_callback; /* Pause callback function */
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};
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extern const device_type SEGA315_5124; /* aka SMS1 vdp */
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extern const device_type SEGA315_5246; /* aka SMS2 vdp */
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extern const device_type SEGA315_5378; /* aka Gamegear vdp */
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class sega315_5124_device : public device_t,
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public sega315_5124_interface,
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public device_memory_interface
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{
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public:
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// construction/destruction
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sega315_5124_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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sega315_5124_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, UINT8 cram_size, UINT8 palette_offset, bool supports_224_240);
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DECLARE_READ8_MEMBER( vram_read );
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DECLARE_WRITE8_MEMBER( vram_write );
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DECLARE_READ8_MEMBER( register_read );
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DECLARE_WRITE8_MEMBER( register_write );
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DECLARE_READ8_MEMBER( vcount_read );
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DECLARE_READ8_MEMBER( hcount_latch_read );
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DECLARE_WRITE8_MEMBER( hcount_latch_write );
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bitmap_t *get_bitmap() { return m_tmpbitmap; };
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bitmap_t *get_y1_bitmap() { return m_y1_bitmap; };
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/* update the screen */
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void update_video( bitmap_t *bitmap, const rectangle *cliprect );
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virtual void set_sega315_5124_compatibility_mode( bool sega315_5124_compatibility_mode ) { };
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protected:
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void set_display_settings();
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virtual void update_palette();
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virtual void draw_scanline( int pixel_offset_x, int pixel_plot_y, int line );
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virtual UINT16 get_name_table_address();
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void process_line_timer();
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void draw_scanline_mode4( int *line_buffer, int *priority_selected, int line );
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void draw_sprites_mode4( int *line_buffer, int *priority_selected, int pixel_plot_y, int line );
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void draw_sprites_tms9918_mode( int *line_buffer, int pixel_plot_y, int line );
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void draw_scanline_mode2( int *line_buffer, int line );
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void draw_scanline_mode0( int *line_buffer, int line );
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void select_sprites( int pixel_plot_y, int line );
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// device-level overrides
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virtual void device_config_complete();
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virtual void device_start();
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virtual void device_reset();
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virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
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virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const { return (spacenum == AS_0) ? &m_space_config : NULL; }
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UINT8 m_reg[16]; /* All the registers */
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UINT8 m_status; /* Status register */
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UINT8 m_reg9copy; /* Internal copy of register 9 */
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UINT8 m_addrmode; /* Type of VDP action */
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UINT16 m_addr; /* Contents of internal VDP address register */
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UINT8 m_cram_size; /* CRAM size */
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UINT8 m_cram_mask; /* Mask to switch between SMS and GG CRAM sizes */
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int m_cram_dirty; /* Have there been any changes to the CRAM area */
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int m_pending;
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UINT8 m_buffer;
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bool m_sega315_5124_compatibility_mode; /* Shrunk SMS screen on GG lcd mode flag */
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int m_irq_state; /* The status of the IRQ line of the VDP */
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int m_vdp_mode; /* Current mode of the VDP: 0,1,2,3,4 */
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int m_y_pixels; /* 192, 224, 240 */
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int m_draw_time;
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UINT8 m_line_counter;
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UINT8 m_hcounter;
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memory_region *m_CRAM; /* Pointer to CRAM */
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const UINT8 *m_frame_timing;
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bitmap_t *m_tmpbitmap;
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bitmap_t *m_y1_bitmap;
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UINT8 m_collision_buffer[SEGA315_5124_WIDTH];
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UINT8 m_palette_offset;
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bool m_supports_224_240;
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UINT16 m_sprite_base;
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int m_selected_sprite[8];
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int m_sprite_count;
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int m_sprite_height;
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int m_sprite_zoom;
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/* line_buffer will be used to hold 5 lines of line data. Line #0 is the regular blitting area.
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Lines #1-#4 will be used as a kind of cache to be used for vertical scaling in the gamegear
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sms compatibility mode. */
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int *m_line_buffer;
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int m_current_palette[32];
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devcb_resolved_write_line m_cb_int;
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devcb_resolved_write_line m_cb_pause;
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emu_timer *m_display_timer;
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emu_timer *m_set_status_vint_timer;
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emu_timer *m_set_status_sprovr_timer;
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emu_timer *m_set_status_sprcol_timer;
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emu_timer *m_check_hint_timer;
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emu_timer *m_check_vint_timer;
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emu_timer *m_draw_timer;
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screen_device *m_screen;
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const address_space_config m_space_config;
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/* Timers */
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static const device_timer_id TIMER_LINE = 0;
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static const device_timer_id TIMER_SET_STATUS_VINT = 1;
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static const device_timer_id TIMER_SET_STATUS_SPROVR = 2;
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static const device_timer_id TIMER_CHECK_HINT = 3;
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static const device_timer_id TIMER_CHECK_VINT = 4;
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static const device_timer_id TIMER_SET_STATUS_SPRCOL = 5;
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static const device_timer_id TIMER_DRAW = 6;
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};
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class sega315_5246_device : public sega315_5124_device
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{
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public:
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sega315_5246_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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protected:
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virtual UINT16 get_name_table_address();
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};
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class sega315_5378_device : public sega315_5124_device
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{
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public:
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sega315_5378_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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virtual void device_reset();
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virtual void set_sega315_5124_compatibility_mode( bool sega315_5124_compatibility_mode );
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protected:
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virtual void update_palette();
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virtual void draw_scanline( int pixel_offset_x, int pixel_plot_y, int line );
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virtual UINT16 get_name_table_address();
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};
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/***************************************************************************
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DEVICE CONFIGURATION MACROS
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***************************************************************************/
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#define MCFG_SEGA315_5124_ADD(_tag, _interface) \
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MCFG_DEVICE_ADD(_tag, SEGA315_5124, 0) \
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MCFG_DEVICE_CONFIG(_interface)
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#define MCFG_SEGA315_5246_ADD(_tag, _interface) \
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MCFG_DEVICE_ADD(_tag, SEGA315_5246, 0) \
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MCFG_DEVICE_CONFIG(_interface)
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#define MCFG_SEGA315_5378_ADD(_tag, _interface) \
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MCFG_DEVICE_ADD(_tag, SEGA315_5378, 0) \
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MCFG_DEVICE_CONFIG(_interface)
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#endif /* __SEGA315_5124_H__ */
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