mirror of
https://github.com/SAT-R/sa2.git
synced 2026-10-28 09:43:38 +00:00
Oliver Bell
59706b53c1
- Update software renderer to the gpsp renderer (fast enough to render on slow hardware) - Convert audio emulation to fixed point (since float is slower on these systems) - Add PSP as a target for SDL - Add PS2 as its own target, though it's still using software rendering Thanks to @kikugrave for adding the initial psp boilerplate and inspiring me to finally finish the ps2 port!
177 lines
5.4 KiB
C
177 lines
5.4 KiB
C
#ifndef GUARD_GBA_DEFINES
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#define GUARD_GBA_DEFINES
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#ifndef GEN_CTX
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#include <stddef.h>
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#include <stdint.h> // for uint16_t
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#endif
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#define TRUE 1
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#define FALSE 0
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#if !PORTABLE
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#define IWRAM_DATA __attribute__((section("iwram_data")))
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#define EWRAM_DATA __attribute__((section("ewram_data")))
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#else
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#define IWRAM_DATA
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#define EWRAM_DATA
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#endif
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// TODO: Move these elsewhere?
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// #ifdef __GNUC__
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#define NAKED __attribute__((naked))
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#define UNUSED __attribute__((unused))
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//#define PACKED __attribute__((packed))
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#define ALIGNED(n) __attribute__((aligned(n)))
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// #endif
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#define EWRAM_SIZE 0x40000
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#define IWRAM_SIZE 0x7E00
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#define PLTT_SIZE 0x400
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#define BG_PLTT_SIZE 0x200
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#define OBJ_PLTT_SIZE 0x200
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#define VRAM_SIZE 0x18000
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#define BG_VRAM_SIZE 0x10000
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// The size of OBJ_VRAM0_SIZE depends on the "Mode" of the graphics hardware.
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// The data is interpreted differently by the hardware in each mode.
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#define OBJ_VRAM0_SIZE 0x8000
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#define OBJ_VRAM1_SIZE 0x4000
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#define OAM_ENTRY_COUNT 128
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#if PORTABLE
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// NOTE: Used in gba/types.h, so they have to be defined before the #include
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#if defined(__PSP__)
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// PSP: Use GBA-native resolution, SDL scales to 480x272
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#define DISPLAY_WIDTH 240
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#define DISPLAY_HEIGHT 160
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#elif defined(__PS2__)
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// Runs at 60fps with the "fast draw"
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#define DISPLAY_WIDTH 320
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#define DISPLAY_HEIGHT 180
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#else
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#define DISPLAY_WIDTH 426
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#define DISPLAY_HEIGHT 240
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#endif
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// NOTE: We shouldn't consider WIDESCREEN_HACK a permanent thing.
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// This hack should best be removed once there's a "native" platform layer.
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#if ((DISPLAY_WIDTH >= 256) || (DISPLAY_HEIGHT >= 256))
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#undef VRAM_SIZE
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#define VRAM_SIZE (0x18000 + (0x800 * (12)))
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#define WIDESCREEN_HACK TRUE
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#define EXTENDED_OAM TRUE
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#else
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#define WIDESCREEN_HACK FALSE
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#define EXTENDED_OAM !TRUE
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#endif
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extern uint8_t VRAM[VRAM_SIZE];
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#if !EXTENDED_OAM
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//#include "gba/types.h"
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// TODO: Fix #define OAM_SIZE (OAM_ENTRY_COUNT*sizeof(OamData))
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#define OAM_SIZE (OAM_ENTRY_COUNT*8)
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#else // EXTENDED_OAM
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#define OAM_SIZE (OAM_ENTRY_COUNT*0xC)
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#endif
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extern struct SoundMixerState *SOUND_INFO_PTR;
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extern uint16_t INTR_CHECK;
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extern void (*INTR_VECTOR)(void);
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extern uint8_t EWRAM_START[EWRAM_SIZE];
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extern uint8_t IWRAM_START[IWRAM_SIZE];
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extern uint16_t PLTT[PLTT_SIZE/sizeof(uint16_t)];
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#define BG_PLTT ((u16*)&PLTT[0])
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#define OBJ_PLTT ((u16*)&PLTT[BG_PLTT_SIZE/sizeof(uint16_t)])
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extern uint8_t OAM[OAM_SIZE];
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#define BG_VRAM &VRAM[0]
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#define BG_CHAR_ADDR(n) (((u8*)BG_VRAM) + (0x4000 * (n)))
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#define BG_CHAR_ADDR_FROM_BGCNT(bg) (BG_VRAM + ((gBgCntRegs[bg] & BGCNT_CHARBASE(0x3)) << 12))
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#define BG_SCREEN_ADDR(n) (((u8*)BG_VRAM) + (0x800 * (n)))
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#define BG_TILE_ADDR(n) (((u8*)BG_VRAM) + (0x80 * (n)))
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#define OBJ_VRAM0 &VRAM[0x10000]
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#define OBJ_VRAM1 &VRAM[0x14000]
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#define OBJ_VRAM_TOTAL_SIZE (VRAM_SIZE - BG_VRAM_SIZE)
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#else
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#define DISPLAY_WIDTH 240
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#define DISPLAY_HEIGHT 160
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// NOTE(Jace): I tried replacing these altogether,
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// but that resulted in a nonmatching ROM
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// (see notes above)
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#define SOUND_INFO_PTR (*(struct SoundMixerState **)0x3007FF0)
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#define INTR_CHECK (*(u16 *)0x3007FF8)
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#define INTR_VECTOR (*(void **)0x3007FFC)
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#define EWRAM_START 0x02000000
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#define IWRAM_START 0x03000000
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#define PLTT 0x5000000
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#define BG_PLTT ((u16 *)(PLTT))
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#define OBJ_PLTT ((u16 *)(PLTT + BG_PLTT_SIZE))
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#define VRAM 0x6000000
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#define BG_VRAM VRAM
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#define BG_CHAR_ADDR(n) (BG_VRAM + ((n) << 14))
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#define BG_CHAR_ADDR_FROM_BGCNT(bg) ((u8*)BG_VRAM + ((gBgCntRegs[bg] & BGCNT_CHARBASE(0x3)) << 12))
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// TODO: Maybe rename BG_SCREEN_ADDR
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#define BG_SCREEN_ADDR(n) (BG_VRAM + (0x800 * (n)))
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#define BG_TILE_ADDR(n) (BG_VRAM + (0x80 * (n)))
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// text-mode BG
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#define OBJ_VRAM0 (u8*)(VRAM + 0x10000)
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// bitmap-mode BG
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#define OBJ_VRAM1 (u8*)(VRAM + 0x14000)
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#define OAM 0x7000000
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#define OAM_SIZE (OAM_ENTRY_COUNT*sizeof(OamData))
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#define OBJ_VRAM_TOTAL_SIZE (VRAM_SIZE - BG_VRAM_SIZE)
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#endif
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#if WIDESCREEN_HACK
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#define WIN_REG_SIZE 4
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#define WIN_RANGE(a, b) (((a) << 16) | (b))
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#define WIN_GET_LOWER(win_reg) (((win_reg) & 0xFFFF0000) >> 16)
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#define WIN_GET_HIGHER(win_reg) (((win_reg) & 0x0000FFFF) >> 0)
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typedef uint32_t winreg_t;
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#else
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#define WIN_REG_SIZE 2
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#define WIN_RANGE(a, b) (((a) << 8) | (b))
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#define WIN_GET_LOWER(win_reg) (((win_reg) & 0xFF00) >> 8)
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#define WIN_GET_HIGHER(win_reg) (((win_reg) & 0x00FF) >> 0)
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typedef uint16_t winreg_t;
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#endif
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#define TILE_SIZE_4BPP 32
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#define TILE_SIZE_8BPP 64
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// NOTE/TODO: Maybe this should somewhere else?
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// NOTE: This appears to not match when using pointers, but with integers it's fine.
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// uintptr_t should always be defined to be as big as a pointer, so there should be no issues.
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#define GET_TILE_NUM_COMMON(vramPtr, tileSize) (((uintptr_t)(vramPtr) - (uintptr_t)OBJ_VRAM0) / (tileSize))
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#define GET_TILE_NUM(vramPtr) GET_TILE_NUM_COMMON((vramPtr), TILE_SIZE_4BPP)
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#define TOTAL_OBJ_TILE_COUNT 1024
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#define RGB16(r, g, b) ((r) | ((g) << 5) | ((b) << 10))
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#define RGB16_REV(r, g, b) (((b) << 10) | ((g) << 5) | (r))
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#define RGB_BLACK RGB16(0, 0, 0)
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#define RGB_WHITE RGB16(31, 31, 31)
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#define RGB_RED RGB16(31, 0, 0)
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#define RGB_GREEN RGB16(0, 31, 0)
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#define RGB_BLUE RGB16(0, 0, 31)
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#define RGB_YELLOW RGB16(31, 31, 0)
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#define RGB_MAGENTA RGB16(31, 0, 31)
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#define RGB_CYAN RGB16(0, 31, 31)
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#define RGB_WHITEALPHA (RGB_WHITE | 0x8000)
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#define SYSTEM_CLOCK (16 * 1024 * 1024) // System Clock
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#endif // GUARD_GBA_DEFINES
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