diff options
Diffstat (limited to 'src/code/z_vimode.c')
| -rw-r--r-- | src/code/z_vimode.c | 376 |
1 files changed, 368 insertions, 8 deletions
diff --git a/src/code/z_vimode.c b/src/code/z_vimode.c index b7d2dea64..2ddd27775 100644 --- a/src/code/z_vimode.c +++ b/src/code/z_vimode.c @@ -1,17 +1,377 @@ #include "global.h" +#include "ultra64/viint.h" -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_80140260.s") +typedef struct { + /* 0x00 */ u32 burst; + /* 0x04 */ u32 vSync; + /* 0x08 */ u32 hSync; + /* 0x0C */ u32 leap; + /* 0x10 */ u32 hStart; + /* 0x14 */ u32 vStart; + /* 0x18 */ u32 vBurst; +} ViModeStruct; // size = 0x1C -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_8014026C.s") +void ViMode_LogPrint(OSViMode* osViMode) { +} -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_80140730.s") +/** + * Configures the custom OSViMode for this ViMode + * + * @param viMode ViMode to configure the custom OSViMode for + * @param type Identifying type for the OSViMode + * @param tvType TV Type: NTSC, PAL, MPAL or FPAL + * @param loRes Boolean: true = low resolution, false = high resolution. + * Corresponds to "L" or "H" in libultra VI mode names + * @param antialiasOff Boolean: true = point-sampling, false = anti-aliasing. + * Corresponds to "P" or "A" in libultra VI mode names + * @param modeN Boolean: controls interlacing mode, different based on resolution. + * Corresponds to "N" or "F" in libultra VI mode names + * @param fb16Bit Bolean: true = 16-bit framebuffer, false = 32-bit framebuffer. + * Corresponds to "1" or "2" in libultra VI mode names + * @param width Screen width + * @param height Screen height + * @param leftAdjust Left edge adjustment + * @param rightAdjust Right edge adjustment + * @param upperAdjust Upper edge adjustment + * @param lowerAdjust Lower edge adjustment + */ +void ViMode_Configure(OSViMode* viMode, s32 type, s32 tvType, s32 loRes, s32 antialiasOff, s32 modeN, s32 fb16Bit, + s32 width, s32 height, s32 leftAdjust, s32 rightAdjust, s32 upperAdjust, s32 lowerAdjust) { + s32 hiRes; + s32 antialiasOn; + s32 modeF; + s32 fb32Bit; + s32 hiResDeflicker; // deflickered interlacing + s32 hiResInterlaced; + s32 loResDeinterlaced; + s32 loResInterlaced; + s32 modeLAN1; // L=(lo res) A=(antialias) N=(deinterlace) 1=(16-bit) + s32 modeLPN2; // L=(lo res) P=(point-sampled) N=(deinterlace) 2=(32-bit) + s32 modeHPN2; // H=(hi res) P=(point-sampled) N=(normal interlacing) 2=(32-bit) + s32 yScaleLo; + s32 yScaleHiEvenField; + s32 yScaleHiOddField; -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_80140810.s") + hiRes = !loRes; + antialiasOn = !antialiasOff; + modeF = !modeN; + fb32Bit = !fb16Bit; -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_80140898.s") + hiResDeflicker = hiRes && modeF; + hiResInterlaced = hiRes && modeN; + loResDeinterlaced = loRes && modeN; + loResInterlaced = loRes && modeF; -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_80140900.s") + modeLAN1 = loRes && antialiasOn && modeN && fb16Bit; + modeLPN2 = loRes && antialiasOff && modeN && fb32Bit; + modeHPN2 = hiRes && antialiasOff && modeN && fb32Bit; -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_8014090C.s") + upperAdjust &= ~1; + lowerAdjust &= ~1; -#pragma GLOBAL_ASM("asm/non_matchings/code/z_vimode/func_80140970.s") + yScaleLo = (hiResDeflicker ? 2 : 1) * (((SCREEN_HEIGHT << 11) / SCREEN_HEIGHT) / (loRes ? 1 : 2)); + + yScaleHiEvenField = modeF ? (loResInterlaced ? 0x1000000 : 0x2000000) : 0; + yScaleHiOddField = modeF ? (loResInterlaced ? 0x3000000 : 0x2000000) : 0; + + viMode->type = type; + viMode->comRegs.ctrl = OS_VI_UNK2000 | OS_VI_UNK1000 | OS_VI_GAMMA | OS_VI_GAMMA_DITHER | + (!loResDeinterlaced ? OS_VI_UNK40 : 0) | (antialiasOn ? OS_VI_DIVOT : 0) | + (fb32Bit ? OS_VI_UNK2 | OS_VI_UNK1 : OS_VI_UNK2); + + if (modeLAN1) { + // Anti-aliased, fetch extra lines as-needed + viMode->comRegs.ctrl |= 0x100; + } else if (modeLPN2 | modeHPN2) { + // Point-sampled, resampling disabled + viMode->comRegs.ctrl |= 0x300; + } else { + if (antialiasOff) { + // Point-sampled, resampling enabled + viMode->comRegs.ctrl |= 0x200; + } else { + // Anti-aliased, always fetch extra lines + viMode->comRegs.ctrl |= 0; + } + } + + viMode->comRegs.width = width * (hiResInterlaced ? 2 : 1); + + if (tvType < 3) { + static const ViModeStruct D_801DF0C0[] = { + { + // OS_TV_PAL + BURST(58, 35, 4, 64), + VSYNC(624), + HSYNC(3177, 21), + LEAP(3183, 3182), + HSTART(128, 768), + START(95, 569), + BURST(107, 2, 9, 0), + }, + { + // OS_TV_NTSC + BURST(57, 34, 5, 62), + VSYNC(524), + HSYNC(3093, 0), + LEAP(3093, 3093), + HSTART(108, 748), + START(37, 511), + BURST(4, 2, 14, 0), + }, + { + // OS_TV_MPAL + BURST(57, 30, 5, 70), + VSYNC(524), + HSYNC(3088, 0), + LEAP(3100, 3100), + HSTART(108, 748), + START(37, 511), + BURST(4, 2, 14, 0), + }, + }; + const ViModeStruct* ptr = &D_801DF0C0[tvType]; + + viMode->comRegs.burst = ptr->burst; + viMode->comRegs.vSync = ptr->vSync; + viMode->comRegs.hSync = ptr->hSync; + viMode->comRegs.leap = ptr->leap; + viMode->comRegs.hStart = ptr->hStart; + viMode->fldRegs[0].vStart = ptr->vStart; + viMode->fldRegs[1].vStart = ptr->vStart; + viMode->fldRegs[0].vBurst = ptr->vBurst; + viMode->fldRegs[1].vBurst = ptr->vBurst; + } else { + __assert("../z_vimode.c", 216); + } + + viMode->comRegs.hStart += (leftAdjust << 16) + (s16)rightAdjust; + viMode->fldRegs[0].vStart += (upperAdjust << 16) + (s16)lowerAdjust; + viMode->fldRegs[1].vStart += (upperAdjust << 16) + (s16)lowerAdjust; + + if (loResDeinterlaced) { + viMode->comRegs.vSync++; + if (tvType == OS_TV_MPAL) { + viMode->comRegs.hSync += HSYNC(1, 4); + viMode->comRegs.leap += LEAP((u16)-4, (u16)-2); + } + } else { + viMode->fldRegs[0].vStart += START((u16)-3, (u16)-2); + if (tvType == OS_TV_MPAL) { + viMode->fldRegs[0].vBurst += BURST((u8)-2, (u8)-1, 12, -1); + } else if (tvType == OS_TV_PAL) { + viMode->fldRegs[1].vBurst += BURST((u8)-2, (u8)-1, 2, 0); + } + } + + viMode->comRegs.xScale = (SCREEN_WIDTH << 10) / SCREEN_WIDTH; + viMode->comRegs.vCurrent = 0; + + viMode->fldRegs[0].origin = ORIGIN(width * 2 * (fb16Bit ? 1 : 2)); + viMode->fldRegs[1].origin = ORIGIN(width * 2 * (fb16Bit ? 1 : 2) * (loRes ? 1 : 2)); + + viMode->fldRegs[0].yScale = yScaleLo | yScaleHiEvenField; + viMode->fldRegs[1].yScale = yScaleLo | yScaleHiOddField; + + viMode->fldRegs[0].vIntr = 2; + viMode->fldRegs[1].vIntr = 2; +} + +void ViMode_Save(ViMode* viMode) { + R_VI_MODE_EDIT_STATE = viMode->editState; + R_VI_MODE_EDIT_WIDTH = viMode->viWidth; + R_VI_MODE_EDIT_HEIGHT = viMode->viHeight; + R_VI_MODE_EDIT_ULY_ADJ = viMode->upperAdjust; + R_VI_MODE_EDIT_LRY_ADJ = viMode->lowerAdjust; + R_VI_MODE_EDIT_ULX_ADJ = viMode->leftAdjust; + R_VI_MODE_EDIT_LRX_ADJ = viMode->rightAdjust; + + if (SREG(58) == 1) { + SREG(58) = 0; + switch (SREG(59)) { + case 1: + ViMode_LogPrint(&osViModePalLan1); + break; + + case 2: + ViMode_LogPrint(&osViModeFpalLan1); + break; + + default: + ViMode_LogPrint(&viMode->customViMode); + break; + } + } +} + +void ViMode_Load(ViMode* viMode) { + //! @bug This condition always fails as the lowest bit is masked out to 0 + if ((R_VI_MODE_EDIT_WIDTH & ~3) == 1) { + R_VI_MODE_EDIT_WIDTH += 4; + } + + viMode->editState = R_VI_MODE_EDIT_STATE; + viMode->viWidth = R_VI_MODE_EDIT_WIDTH & ~3; + viMode->viHeight = R_VI_MODE_EDIT_HEIGHT; + viMode->upperAdjust = R_VI_MODE_EDIT_ULY_ADJ; + viMode->lowerAdjust = R_VI_MODE_EDIT_LRY_ADJ; + viMode->leftAdjust = R_VI_MODE_EDIT_ULX_ADJ; + viMode->rightAdjust = R_VI_MODE_EDIT_LRX_ADJ; +} + +void ViMode_Init(ViMode* viMode) { + viMode->editState = VI_MODE_EDIT_STATE_INACTIVE; + viMode->viWidth = SCREEN_WIDTH; + viMode->viHeight = SCREEN_HEIGHT; + viMode->leftAdjust = 0; + viMode->rightAdjust = 0; + viMode->upperAdjust = 0; + viMode->lowerAdjust = 0; + viMode->viFeatures = OS_VI_DITHER_FILTER_ON | OS_VI_GAMMA_OFF; + viMode->tvType = osTvType; + viMode->fb16Bit = true; + viMode->modeN = true; + viMode->antialiasOff = false; + viMode->loRes = true; + + ViMode_Save(viMode); +} + +void ViMode_Destroy(ViMode* viMode) { +} + +void ViMode_ConfigureFeatures(ViMode* viMode, s32 viFeatures) { + u32 ctrl = viMode->customViMode.comRegs.ctrl; + + if (viFeatures & OS_VI_GAMMA_ON) { + ctrl |= OS_VI_GAMMA; + } + if (viFeatures & OS_VI_GAMMA_OFF) { + ctrl &= ~OS_VI_GAMMA; + } + if (viFeatures & OS_VI_GAMMA_DITHER_ON) { + ctrl |= OS_VI_GAMMA_DITHER; + } + if (viFeatures & OS_VI_GAMMA_DITHER_OFF) { + ctrl &= ~OS_VI_GAMMA_DITHER; + } + if (viFeatures & OS_VI_DIVOT_ON) { + ctrl |= OS_VI_DIVOT; + } + if (viFeatures & OS_VI_DIVOT_OFF) { + ctrl &= ~OS_VI_DIVOT; + } + viMode->customViMode.comRegs.ctrl = ctrl; +} + +/** + * Updates the custom VI mode with controller input and any edits made with the REG editor + * (through R_VI_MODE_EDIT_* entries) + */ +void ViMode_Update(ViMode* viMode, Input* input) { + ViMode_Load(viMode); + + if ((viMode->editState == VI_MODE_EDIT_STATE_ACTIVE) || (viMode->editState == VI_MODE_EDIT_STATE_2) || + (viMode->editState == VI_MODE_EDIT_STATE_3)) { + gScreenWidth = viMode->viWidth; + gScreenHeight = viMode->viHeight; + + // Controls to reset the ViMode to defaults + if (CHECK_BTN_ALL(input->cur.button, BTN_START | BTN_CUP | BTN_CRIGHT)) { + ViMode_Init(viMode); + } + + // Controls to adjust the screen dimensions (upper-left) + if (CHECK_BTN_ALL(input->cur.button, BTN_CUP)) { + if (CHECK_BTN_ALL(input->cur.button, BTN_DUP)) { + viMode->upperAdjust--; + } + if (CHECK_BTN_ALL(input->cur.button, BTN_DDOWN)) { + viMode->upperAdjust++; + } + if (CHECK_BTN_ALL(input->cur.button, BTN_DLEFT)) { + viMode->leftAdjust--; + } + if (CHECK_BTN_ALL(input->cur.button, BTN_DRIGHT)) { + viMode->leftAdjust++; + } + } + + // Controls to adjust the screen dimensions (lower-right) + if (CHECK_BTN_ALL(input->cur.button, BTN_CRIGHT)) { + if (CHECK_BTN_ALL(input->cur.button, BTN_DUP)) { + viMode->lowerAdjust--; + } + if (CHECK_BTN_ALL(input->cur.button, BTN_DDOWN)) { + viMode->lowerAdjust++; + } + if (CHECK_BTN_ALL(input->cur.button, BTN_DLEFT)) { + viMode->rightAdjust--; + } + if (CHECK_BTN_ALL(input->cur.button, BTN_DRIGHT)) { + viMode->rightAdjust++; + } + } + + // Controls to adjust key features + if (CHECK_BTN_ALL(input->cur.button, BTN_CDOWN)) { + if (CHECK_BTN_ALL(input->press.button, BTN_DUP)) { + viMode->loRes = !viMode->loRes; + } + if (CHECK_BTN_ALL(input->press.button, BTN_DDOWN)) { + viMode->antialiasOff = !viMode->antialiasOff; + } + if (CHECK_BTN_ALL(input->press.button, BTN_DLEFT)) { + viMode->modeN = !viMode->modeN; + } + if (CHECK_BTN_ALL(input->press.button, BTN_DRIGHT)) { + viMode->fb16Bit = !viMode->fb16Bit; + } + } + + // Clamp adjustments + if (viMode->editState >= VI_MODE_EDIT_STATE_2) { + // Allow parts of the framebuffer to possibly be offscreen by a small margin + if (viMode->leftAdjust < -16) { + viMode->leftAdjust = -16; + } + if (viMode->upperAdjust < -50) { + viMode->upperAdjust = -50; + } + if (viMode->rightAdjust > 16) { + viMode->rightAdjust = 16; + } + if (viMode->lowerAdjust > 50) { + viMode->lowerAdjust = 50; + } + } else { + // Do not allow parts of the framebuffer to end up offscreen + if (viMode->leftAdjust < 0) { + viMode->leftAdjust = 0; + } + if (viMode->upperAdjust < 0) { + viMode->upperAdjust = 0; + } + if (viMode->rightAdjust > 0) { + viMode->rightAdjust = 0; + } + if (viMode->lowerAdjust > 0) { + viMode->lowerAdjust = 0; + } + } + + ViMode_Configure(&viMode->customViMode, OS_VI_UNK28, osTvType, viMode->loRes, viMode->antialiasOff, + viMode->modeN, viMode->fb16Bit, viMode->viWidth, viMode->viHeight, viMode->leftAdjust, + viMode->rightAdjust, viMode->upperAdjust, viMode->lowerAdjust); + ViMode_ConfigureFeatures(viMode, viMode->viFeatures); + + if (viMode->editState == VI_MODE_EDIT_STATE_3) { + // Log comparison between the NTSC LAN1 mode and the custom mode + ViMode_LogPrint(&osViModeNtscLan1); + ViMode_LogPrint(&viMode->customViMode); + viMode->editState = VI_MODE_EDIT_STATE_2; + } + } + + ViMode_Save(viMode); +} |