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https://github.com/coop-deluxe/sm64coopdx.git
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170 lines
6.2 KiB
C
170 lines
6.2 KiB
C
#pragma once
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///////////////////////
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// G_SETGEOMETRYMODE //
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///////////////////////
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#define G_LIGHT_MAP_EXT 0x00000800
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#define G_LIGHTING_ENGINE_EXT 0x00004000
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#define G_PACKED_NORMALS_EXT 0x00000080
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#define G_CULL_INVERT_EXT 0x00000100
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#define G_FRESNEL_COLOR_EXT 0x00000040
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#define G_FRESNEL_ALPHA_EXT 0x00400000
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//////////
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// DJUI //
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//////////
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#define G_TEXCLIP_DJUI 0xe1
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#define G_TEXOVERRIDE_DJUI 0xe0
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#define G_VTX_EXT 0x11
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#define G_TRI2_EXT 0x12
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#define G_TEXADDR_DJUI 0x13
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#define G_EXECUTE_DJUI 0xdd
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#define G_MTX_INVERSE_CAMERA_EXT 0x08
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#define gsSPTextureAddrDjui(c) \
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{{ \
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(_SHIFTL(G_TEXADDR_DJUI,24,8)|_SHIFTL(~(u32)(c),0,24)),(u32)(0) \
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}}
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#define gSetClippingDjui(pkt, cmd, x1, y1, x2, y2) \
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{ \
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Gfx *_g = (Gfx *)(pkt); \
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_g->words.w0 = _SHIFTL(cmd, 24, 8) | _SHIFTL( x1, 16, 8) | \
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_SHIFTL( y1, 8, 8) | _SHIFTL(0x00, 0, 8); \
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_g->words.w1 = _SHIFTL(x2, 16, 8) | _SHIFTL(y2, 8, 8); \
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}
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#define gSetOverrideDjui(pkt, cmd, texture, w, h, bitSize) \
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{ \
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Gfx *_g = (Gfx *)(pkt); \
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_g->words.w0 = _SHIFTL(cmd, 24, 8) | _SHIFTL(w, 16, 8) | \
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_SHIFTL(h, 8, 8) | _SHIFTL(bitSize, 0, 8); \
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_g->words.w1 = (uintptr_t)(texture); \
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}
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// does not get affected by gVertexColor
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#define gSPVertexNonGlobal(pkt, v, n, v0) \
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{ \
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Gfx *_g = (Gfx *)(pkt); \
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_g->words.w0 = \
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_SHIFTL(G_VTX_EXT,24,8)|_SHIFTL((n),12,8)|_SHIFTL((v0)+(n),1,7); \
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_g->words.w1 = (uintptr_t)(v); \
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}
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// does not get affected by gVertexColor
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#define gsSPVertexNonGlobal(v, n, v0) \
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{{ \
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(_SHIFTL(G_VTX_EXT,24,8)|_SHIFTL((n),12,8)|_SHIFTL((v0)+(n),1,7)), \
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(uintptr_t)(v) \
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}}
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#define gSP2TrianglesDjui(pkt, v00, v01, v02, flag0, v10, v11, v12, flag1) \
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{ \
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Gfx *_g = (Gfx *)(pkt); \
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\
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_g->words.w0 = (_SHIFTL(G_TRI2_EXT, 24, 8)| \
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__gsSP1Triangle_w1f(v00, v01, v02, flag0)); \
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_g->words.w1 = __gsSP1Triangle_w1f(v10, v11, v12, flag1); \
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}
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#define gsSPExecuteDjui(word) \
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{{ \
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_SHIFTL(G_EXECUTE_DJUI, 24, 8), (unsigned int)(word) \
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}}
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#define gDPLoadTextureBlockWithoutTexture(pkt, timg, fmt, siz, width, height, \
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pal, cms, cmt, masks, maskt, shifts, shiftt) \
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{ \
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gDPSetTile(pkt, fmt, siz##_LOAD_BLOCK, 0, 0, G_TX_LOADTILE, \
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0 , cmt, maskt, shiftt, cms, masks, shifts); \
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gDPLoadSync(pkt); \
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gDPLoadBlock(pkt, G_TX_LOADTILE, 0, 0, \
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(((width)*(height) + siz##_INCR) >> siz##_SHIFT) -1, \
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CALC_DXT(width, siz##_BYTES)); \
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gDPPipeSync(pkt); \
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gDPSetTile(pkt, fmt, siz, \
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(((width) * siz##_LINE_BYTES)+7)>>3, 0, \
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G_TX_RENDERTILE, pal, cmt, maskt, shiftt, cms, masks, \
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shifts); \
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gDPSetTileSize(pkt, G_TX_RENDERTILE, 0, 0, \
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((width)-1) << G_TEXTURE_IMAGE_FRAC, \
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((height)-1) << G_TEXTURE_IMAGE_FRAC) \
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}
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#define gDPSetTextureClippingDjui(pkt, x1, y1, x2, y2) gSetClippingDjui(pkt, G_TEXCLIP_DJUI, x1, y1, x2, y2)
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#define gDPSetTextureOverrideDjui(pkt, texture, w, h, bitSize) gSetOverrideDjui(pkt, G_TEXOVERRIDE_DJUI, texture, w, h, bitSize)
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////////////////////
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// G_PPARTTOCOLOR //
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////////////////////
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#define G_PPARTTOCOLOR 0xd3
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#define G_COL_PRIM 0x0
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#define G_COL_ENV 0x1
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#define G_CP_LIGHT 0x0
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#define G_CP_AMBIENT 0x1
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#define gSPCopyPlayerPartToColor(pkt, color, part, offset) \
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{ \
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Gfx *_g = (Gfx *)(pkt); \
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_g->words.w0 = (_SHIFTL(G_PPARTTOCOLOR, 24, 8)) | (_SHIFTL(color, 16, 8)); \
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_g->words.w1 = ((2 * ((part) + 1)) + 1 + offset); \
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}
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#define gsSPCopyPlayerPartToColor(color, part, offset) \
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{{ \
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(_SHIFTL(G_PPARTTOCOLOR, 24, 8)) | (_SHIFTL(color, 16, 8)), \
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((2 * ((part) + 1)) + 1 + offset) \
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}}
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////////////////////
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//// G_MOVEWORD ////
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////////////////////
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#define G_MW_FX 0x00 /* replaces G_MW_MATRIX which is no longer supported */
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#define G_MWO_FRESNEL 0x0C
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/**
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* Fresnel - Feature suggested by thecozies
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* Enabled with the G_FRESNEL bit in geometry mode.
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* The dot product between a vertex normal and the vector from the vertex to the
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* camera is computed. The offset and scale here convert this to a shade alpha
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* value. This is useful for making surfaces fade between transparent when
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* viewed straight-on and opaque when viewed at a large angle, or for applying a
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* fake "outline" around the border of meshes.
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*
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* If using Fresnel, you need to set the camera world position whenever you set
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* the VP matrix, viewport, etc. See SPCameraWorld.
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*
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* The RSP does:
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* s16 dotProduct = dot(vertex normal, camera pos - vertex pos);
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* dotProduct = abs(dotProduct); // 0 = points to side, 7FFF = points at or away
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* s32 factor = ((scale * dotProduct) >> 15) + offset;
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* s16 result = clamp(factor << 8, 0, 7FFF);
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* color_or_alpha = result >> 7;
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*
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* At dotMax, color_or_alpha = FF, result = 7F80, factor = 7F
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* At dotMin, color_or_alpha = 00, result = 0, factor = 0
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* 7F = ((scale * dotMax) >> 15) + offset
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* 00 = ((scale * dotMin) >> 15) + offset
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* Subtract: 7F = (scale * (dotMax - dotMin)) >> 15
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* 3F8000 = scale * (dotMax - dotMin)
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* scale = 3F8000 / (dotMax - dotMin) <--
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* offset = -(((3F8000 / (dotMax - dotMin)) * dotMin) >> 15)
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* offset = -((7F * dotMin) / (dotMax - dotMin)) <--
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*
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* To convert in the opposite direction:
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* ((7F - offset) << 15) / scale = dotMax
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* ((00 - offset) << 15) / scale = dotMin
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*/
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#define gSPFresnel(pkt, scale, offset) \
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gMoveWd(pkt, G_MW_FX, G_MWO_FRESNEL, \
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(_SHIFTL((scale), 16, 16) | _SHIFTL((offset), 0, 16)))
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#define gsSPFresnel(scale, offset) \
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gsMoveWd(G_MW_FX, G_MWO_FRESNEL, \
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(_SHIFTL((scale), 16, 16) | _SHIFTL((offset), 0, 16)))
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