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-rw-r--r--Src/Winamp/plush/PF_TEX.C584
1 files changed, 584 insertions, 0 deletions
diff --git a/Src/Winamp/plush/PF_TEX.C b/Src/Winamp/plush/PF_TEX.C
new file mode 100644
index 00000000..b9879169
--- /dev/null
+++ b/Src/Winamp/plush/PF_TEX.C
@@ -0,0 +1,584 @@
+/******************************************************************************
+Plush Version 1.2
+pf_tex.c
+Affine Texture Mapping Rasterizers
+Copyright (c) 1996-2000, Justin Frankel
+******************************************************************************/
+
+#include "plush.h"
+#include "putface.h"
+
+
+void plPF_TexEnv(pl_Cam *cam, pl_Face *TriFace) {
+ pl_uChar i0, i1, i2;
+ pl_uChar *gmem = cam->frameBuffer;
+ pl_uChar *remap;
+ pl_ZBuffer *zbuf = cam->zBuffer;
+
+ pl_sInt32 MappingU1, MappingU2, MappingU3;
+ pl_sInt32 MappingV1, MappingV2, MappingV3;
+ pl_sInt32 MappingU_AND, MappingV_AND;
+ pl_sInt32 eMappingU1, eMappingU2, eMappingU3;
+ pl_sInt32 eMappingV1, eMappingV2, eMappingV3;
+ pl_sInt32 eMappingU_AND, eMappingV_AND;
+
+ pl_uChar *texture, *environment;
+ pl_uChar vshift;
+ pl_uChar evshift;
+ pl_uInt16 *addtable;
+ pl_Texture *Texture, *Environment;
+ pl_uChar stat;
+ pl_Bool zb = (zbuf&&TriFace->Material->zBufferable) ? 1 : 0;
+
+ pl_sInt32 U1, V1, U2, V2, dU1=0, dU2=0, dV1=0, dV2=0, dUL=0, dVL=0, UL, VL;
+ pl_sInt32 eU1, eV1, eU2, eV2, edU1=0, edU2=0, edV1=0,
+ edV2=0, edUL=0, edVL=0, eUL, eVL;
+ pl_sInt32 X1, X2, dX1=0, dX2=0, XL1, XL2;
+ pl_Float Z1, ZL, dZ1=0, dZ2=0, dZL=0, Z2;
+ pl_sInt32 Y1, Y2, Y0, dY;
+
+ Environment = TriFace->Material->Environment;
+ Texture = TriFace->Material->Texture;
+
+ if (!Texture || !Environment) return;
+ texture = Texture->Data;
+ environment = Environment->Data;
+ addtable = TriFace->Material->_AddTable;
+ remap = TriFace->Material->_ReMapTable;
+
+ MappingV_AND = ((1<<Texture->Height)-1)<<Texture->Width;
+ MappingU_AND = (1<<Texture->Width)-1;
+ vshift = 16 - Texture->Width;
+ eMappingV_AND = ((1<<Environment->Height)-1)<<Environment->Width;
+ eMappingU_AND = (1<<Environment->Width)-1;
+ evshift = 16 - Environment->Width;
+
+ PUTFACE_SORT_TEX();
+
+ eMappingU1=(pl_sInt32) (TriFace->eMappingU[i0]*Environment->uScale*TriFace->Material->EnvScaling);
+ eMappingV1=(pl_sInt32) (TriFace->eMappingV[i0]*Environment->vScale*TriFace->Material->EnvScaling);
+ eMappingU2=(pl_sInt32) (TriFace->eMappingU[i1]*Environment->uScale*TriFace->Material->EnvScaling);
+ eMappingV2=(pl_sInt32) (TriFace->eMappingV[i1]*Environment->vScale*TriFace->Material->EnvScaling);
+ eMappingU3=(pl_sInt32) (TriFace->eMappingU[i2]*Environment->uScale*TriFace->Material->EnvScaling);
+ eMappingV3=(pl_sInt32) (TriFace->eMappingV[i2]*Environment->vScale*TriFace->Material->EnvScaling);
+
+ U1 = U2 = MappingU1;
+ V1 = V2 = MappingV1;
+ eU1 = eU2 = eMappingU1;
+ eV1 = eV2 = eMappingV1;
+ X2 = X1 = TriFace->Scrx[i0];
+ Z2 = Z1 = TriFace->Scrz[i0];
+ Y0 = (TriFace->Scry[i0]+(1<<19))>>20;
+ Y1 = (TriFace->Scry[i1]+(1<<19))>>20;
+ Y2 = (TriFace->Scry[i2]+(1<<19))>>20;
+
+ dY = Y2 - Y0;
+ if (dY) {
+ dU2 = (MappingU3 - U1) / dY;
+ dV2 = (MappingV3 - V1) / dY;
+ edU2 = (eMappingU3 - eU1) / dY;
+ edV2 = (eMappingV3 - eV1) / dY;
+ dX2 = (TriFace->Scrx[i2] - X1) / dY;
+ dZ2 = (TriFace->Scrz[i2] - Z1) / dY;
+ }
+ dY = Y1-Y0;
+ if (dY) {
+ dX1 = (TriFace->Scrx[i1] - X1) / dY;
+ dU1 = (MappingU2 - U1) / dY;
+ dV1 = (MappingV2 - V1) / dY;
+ edU1 = (eMappingU2 - eU1) / dY;
+ edV1 = (eMappingV2 - eV1) / dY;
+ dZ1 = (TriFace->Scrz[i1] - Z1) / dY;
+ if (dX2 < dX1) {
+ dX2 ^= dX1; dX1 ^= dX2; dX2 ^= dX1;
+ dU2 ^= dU1; dU1 ^= dU2; dU2 ^= dU1;
+ dV2 ^= dV1; dV1 ^= dV2; dV2 ^= dV1;
+ edU2 ^= edU1; edU1 ^= edU2; edU2 ^= edU1;
+ edV2 ^= edV1; edV1 ^= edV2; edV2 ^= edV1;
+ dZL = dZ1; dZ1 = dZ2; dZ2 = dZL;
+ stat = 2;
+ } else stat = 1;
+ } else {
+ if (TriFace->Scrx[i1] > X1) {
+ X2 = TriFace->Scrx[i1];
+ Z2 = TriFace->Scrz[i1];
+ U2 = MappingU2;
+ V2 = MappingV2;
+ eU2 = eMappingU2;
+ eV2 = eMappingV2;
+ stat = 2|4;
+ } else {
+ X1 = TriFace->Scrx[i1];
+ Z1 = TriFace->Scrz[i1];
+ U1 = MappingU2;
+ V1 = MappingV2;
+ eU1 = eMappingU2;
+ eV1 = eMappingV2;
+ stat = 1|8;
+ }
+ }
+
+ gmem += (Y0 * cam->ScreenWidth);
+ zbuf += (Y0 * cam->ScreenWidth);
+
+ XL1 = (((dX1-dX2)*dY+(1<<19))>>20);
+ if (XL1) {
+ dUL = ((dU1-dU2)*dY)/XL1;
+ dVL = ((dV1-dV2)*dY)/XL1;
+ edUL = ((edU1-edU2)*dY)/XL1;
+ edVL = ((edV1-edV2)*dY)/XL1;
+ dZL = ((dZ1-dZ2)*dY)/XL1;
+ } else {
+ XL1 = ((X2-X1+(1<<19))>>20);
+ if (XL1) {
+ edUL = (eU2-eU1)/XL1;
+ edVL = (eV2-eV1)/XL1;
+ dUL = (U2-U1)/XL1;
+ dVL = (V2-V1)/XL1;
+ dZL = (Z2-Z1)/XL1;
+ }
+ }
+
+ while (Y0 < Y2) {
+ if (Y0 == Y1) {
+ dY = Y2 - ((TriFace->Scry[i1]+(1<<19))>>20);
+ if (dY) {
+ if (stat & 1) {
+ X1 = TriFace->Scrx[i1];
+ dX1 = (TriFace->Scrx[i2]-TriFace->Scrx[i1])/dY;
+ }
+ if (stat & 2) {
+ X2 = TriFace->Scrx[i1];
+ dX2 = (TriFace->Scrx[i2]-TriFace->Scrx[i1])/dY;
+ }
+ if (stat & 4) {
+ X1 = TriFace->Scrx[i0];
+ dX1 = (TriFace->Scrx[i2]-TriFace->Scrx[i0])/dY;
+ }
+ if (stat & 8) {
+ X2 = TriFace->Scrx[i0];
+ dX2 = (TriFace->Scrx[i2]-TriFace->Scrx[i0])/dY;
+ }
+ dZ1 = (TriFace->Scrz[i2]-Z1)/dY;
+ dV1 = (MappingV3 - V1) / dY;
+ dU1 = (MappingU3 - U1) / dY;
+ edV1 = (eMappingV3 - eV1) / dY;
+ edU1 = (eMappingU3 - eU1) / dY;
+ }
+ }
+ XL1 = (X1+(1<<19))>>20;
+ XL2 = (X2+(1<<19))>>20;
+ ZL = Z1;
+ UL = U1;
+ VL = V1;
+ eUL = eU1;
+ eVL = eV1;
+ if ((XL2-XL1) > 0) {
+ XL2 -= XL1;
+ gmem += XL1;
+ zbuf += XL1;
+ XL1 += XL2;
+ if (zb) do {
+ if (*zbuf < ZL) {
+ *zbuf = ZL;
+ *gmem = remap[addtable[environment[
+ ((eUL>>16)&eMappingU_AND)+((eVL>>evshift)&eMappingV_AND)]] +
+ texture[((UL>>16)&MappingU_AND) +
+ ((VL>>vshift)&MappingV_AND)]];
+ }
+ zbuf++;
+ gmem++;
+ ZL += dZL;
+ UL += dUL;
+ VL += dVL;
+ eUL += edUL;
+ eVL += edVL;
+ } while (--XL2);
+ else do {
+ *gmem++ = remap[addtable[environment[
+ ((eUL>>16)&eMappingU_AND)+((eVL>>evshift)&eMappingV_AND)]] +
+ texture[((UL>>16)&MappingU_AND) +
+ ((VL>>vshift)&MappingV_AND)]];
+ UL += dUL;
+ VL += dVL;
+ eUL += edUL;
+ eVL += edVL;
+ } while (--XL2);
+ gmem -= XL1;
+ zbuf -= XL1;
+ }
+ zbuf += cam->ScreenWidth;
+ gmem += cam->ScreenWidth;
+ Z1 += dZ1;
+ X1 += dX1;
+ X2 += dX2;
+ U1 += dU1;
+ V1 += dV1;
+ eU1 += edU1;
+ eV1 += edV1;
+ Y0++;
+ }
+}
+
+void plPF_TexF(pl_Cam *cam, pl_Face *TriFace) {
+ pl_uChar i0, i1, i2;
+ pl_uChar *gmem = cam->frameBuffer;
+ pl_ZBuffer *zbuf = cam->zBuffer;
+ pl_sInt32 MappingU1, MappingU2, MappingU3;
+ pl_sInt32 MappingV1, MappingV2, MappingV3;
+ pl_sInt32 MappingU_AND, MappingV_AND;
+ pl_uChar *texture;
+ pl_uChar vshift;
+ pl_uInt bc;
+ pl_uChar *remap;
+ pl_Texture *Texture;
+ pl_uChar stat;
+
+ pl_ZBuffer Z1, ZL, dZ1=0, dZL=0, Z2, dZ2=0;
+ pl_sInt32 dU1=0, dV1=0, dU2=0, dV2=0, U1, V1, U2, V2;
+ pl_sInt32 dUL=0, dVL=0, UL, VL;
+ pl_sInt32 X1, X2, dX1=0, dX2=0, XL1, XL2;
+ pl_sInt32 Y1, Y2, Y0, dY;
+ pl_Bool zb = (zbuf&&TriFace->Material->zBufferable) ? 1 : 0;
+ pl_sInt shade;
+
+ if (TriFace->Material->Environment) Texture = TriFace->Material->Environment;
+ else Texture = TriFace->Material->Texture;
+
+ if (!Texture) return;
+ remap = TriFace->Material->_ReMapTable;
+ if (TriFace->Material->_AddTable)
+ {
+ shade=(pl_sInt)(TriFace->fShade*255.0f);
+ if (shade < 0) shade=0;
+ if (shade > 255) shade=255;
+ bc = TriFace->Material->_AddTable[shade];
+ }
+ else bc=0;
+ texture = Texture->Data;
+ vshift = 16 - Texture->Width;
+ MappingV_AND = ((1<<Texture->Height)-1)<<Texture->Width;
+ MappingU_AND = (1<<Texture->Width)-1;
+
+ if (TriFace->Material->Environment) {
+ PUTFACE_SORT_ENV();
+ } else {
+ PUTFACE_SORT_TEX();
+ }
+
+ U1 = U2 = MappingU1;
+ V1 = V2 = MappingV1;
+ X2 = X1 = TriFace->Scrx[i0];
+ Z2 = Z1 = TriFace->Scrz[i0];
+ Y0 = (TriFace->Scry[i0]+(1<<19))>>20;
+ Y1 = (TriFace->Scry[i1]+(1<<19))>>20;
+ Y2 = (TriFace->Scry[i2]+(1<<19))>>20;
+
+ dY = Y2 - Y0;
+ if (dY) {
+ dX2 = (TriFace->Scrx[i2] - X1) / dY;
+ dV2 = (MappingV3 - V1) / dY;
+ dU2 = (MappingU3 - U1) / dY;
+ dZ2 = (TriFace->Scrz[i2] - Z1) / dY;
+ }
+ dY = Y1-Y0;
+ if (dY) {
+ dX1 = (TriFace->Scrx[i1] - X1) / dY;
+ dZ1 = (TriFace->Scrz[i1] - Z1) / dY;
+ dU1 = (MappingU2 - U1) / dY;
+ dV1 = (MappingV2 - V1) / dY;
+ if (dX2 < dX1) {
+ dX2 ^= dX1; dX1 ^= dX2; dX2 ^= dX1;
+ dU2 ^= dU1; dU1 ^= dU2; dU2 ^= dU1;
+ dV2 ^= dV1; dV1 ^= dV2; dV2 ^= dV1;
+ dZL = dZ1; dZ1 = dZ2; dZ2 = dZL;
+ stat = 2;
+ } else stat = 1;
+ } else {
+ if (TriFace->Scrx[i1] > X1) {
+ X2 = TriFace->Scrx[i1];
+ Z2 = TriFace->Scrz[i1];
+ U2 = MappingU2;
+ V2 = MappingV2;
+ stat = 2|4;
+ } else {
+ X1 = TriFace->Scrx[i1];
+ Z1 = TriFace->Scrz[i1];
+ U1 = MappingU2;
+ V1 = MappingV2;
+ stat = 1|8;
+ }
+ }
+
+ gmem += (Y0 * cam->ScreenWidth);
+ zbuf += (Y0 * cam->ScreenWidth);
+
+ XL1 = (((dX1-dX2)*dY+(1<<19))>>20);
+ if (XL1) {
+ dUL = ((dU1-dU2)*dY)/XL1;
+ dVL = ((dV1-dV2)*dY)/XL1;
+ dZL = ((dZ1-dZ2)*dY)/XL1;
+ } else {
+ XL1 = ((X2-X1+(1<<19))>>20);
+ if (XL1) {
+ dUL = (U2-U1)/XL1;
+ dVL = (V2-V1)/XL1;
+ dZL = (Z2-Z1)/XL1;
+ }
+ }
+
+ while (Y0 < Y2) {
+ if (Y0 == Y1) {
+ dY = Y2 - ((TriFace->Scry[i1]+(1<<19))>>20);
+ if (dY) {
+ if (stat & 1) {
+ X1 = TriFace->Scrx[i1];
+ dX1 = (TriFace->Scrx[i2]-TriFace->Scrx[i1])/dY;
+ }
+ if (stat & 2) {
+ X2 = TriFace->Scrx[i1];
+ dX2 = (TriFace->Scrx[i2]-TriFace->Scrx[i1])/dY;
+ }
+ if (stat & 4) {
+ X1 = TriFace->Scrx[i0];
+ dX1 = (TriFace->Scrx[i2]-TriFace->Scrx[i0])/dY;
+ }
+ if (stat & 8) {
+ X2 = TriFace->Scrx[i0];
+ dX2 = (TriFace->Scrx[i2]-TriFace->Scrx[i0])/dY;
+ }
+ dZ1 = (TriFace->Scrz[i2]-Z1) / dY;
+ dV1 = (MappingV3 - V1) / dY;
+ dU1 = (MappingU3 - U1) / dY;
+ }
+ }
+ XL1 = (X1+(1<<19))>>20;
+ XL2 = (X2+(1<<19))>>20;
+ ZL = Z1;
+ UL = U1;
+ VL = V1;
+ if ((XL2-XL1) > 0) {
+ XL2 -= XL1;
+ gmem += XL1;
+ zbuf += XL1;
+ XL1 += XL2;
+ if (zb) do {
+ if (*zbuf < ZL) {
+ *zbuf = ZL;
+ *gmem = remap[bc + texture[((UL >> 16)&MappingU_AND) +
+ ((VL>>vshift)&MappingV_AND)]];
+ }
+ zbuf++;
+ gmem++;
+ ZL += dZL;
+ UL += dUL;
+ VL += dVL;
+ } while (--XL2);
+ else do {
+ *gmem++ = remap[bc + texture[((UL >> 16)&MappingU_AND) +
+ ((VL>>vshift)&MappingV_AND)]];
+ UL += dUL;
+ VL += dVL;
+ } while (--XL2);
+ gmem -= XL1;
+ zbuf -= XL1;
+ }
+ zbuf += cam->ScreenWidth;
+ gmem += cam->ScreenWidth;
+ X1 += dX1;
+ X2 += dX2;
+ U1 += dU1;
+ V1 += dV1;
+ Z1 += dZ1;
+ Y0++;
+ }
+}
+
+void plPF_TexG(pl_Cam *cam, pl_Face *TriFace) {
+ pl_uChar i0, i1, i2;
+ pl_uChar *gmem = cam->frameBuffer;
+ pl_ZBuffer *zbuf = cam->zBuffer;
+ pl_sInt32 MappingU1, MappingU2, MappingU3;
+ pl_sInt32 MappingV1, MappingV2, MappingV3;
+ pl_sInt32 MappingU_AND, MappingV_AND;
+ pl_uChar *texture;
+ pl_uChar *remap;
+ pl_uChar vshift;
+ pl_uInt16 *addtable;
+ pl_Texture *Texture;
+
+ pl_sInt32 U1, V1, U2, V2, dU1=0, dU2=0, dV1=0, dV2=0, dUL=0, dVL=0, UL, VL;
+ pl_sInt32 X1, X2, dX1=0, dX2=0, XL1, XL2;
+ pl_sInt32 C1, C2, dC1=0, dC2=0, CL, dCL=0;
+ pl_ZBuffer Z1, ZL, dZ1=0, dZ2=0, dZL=0, Z2;
+ pl_sInt32 Y1, Y2, Y0, dY;
+ pl_uChar stat;
+
+ pl_Bool zb = (zbuf&&TriFace->Material->zBufferable) ? 1 : 0;
+
+ if (TriFace->Material->Environment) Texture = TriFace->Material->Environment;
+ else Texture = TriFace->Material->Texture;
+
+ if (!Texture) return;
+ remap = TriFace->Material->_ReMapTable;
+ texture = Texture->Data;
+ addtable = TriFace->Material->_AddTable;
+ vshift = 16 - Texture->Width;
+ MappingV_AND = ((1<<Texture->Height)-1)<<Texture->Width;
+ MappingU_AND = (1<<Texture->Width)-1;
+
+ if (TriFace->Material->Environment) {
+ PUTFACE_SORT_ENV();
+ } else {
+ PUTFACE_SORT_TEX();
+ }
+
+ C1 = C2 = TriFace->Shades[i0]*65535.0f;
+ U1 = U2 = MappingU1;
+ V1 = V2 = MappingV1;
+ X2 = X1 = TriFace->Scrx[i0];
+ Z2 = Z1 = TriFace->Scrz[i0];
+ Y0 = (TriFace->Scry[i0]+(1<<19))>>20;
+ Y1 = (TriFace->Scry[i1]+(1<<19))>>20;
+ Y2 = (TriFace->Scry[i2]+(1<<19))>>20;
+
+ dY = Y2 - Y0;
+ if (dY) {
+ dX2 = (TriFace->Scrx[i2] - X1) / dY;
+ dZ2 = (TriFace->Scrz[i2] - Z1) / dY;
+ dC2 = (TriFace->Shades[i2]*65535.0f - C1) / dY;
+ dU2 = (MappingU3 - U1) / dY;
+ dV2 = (MappingV3 - V1) / dY;
+ }
+ dY = Y1-Y0;
+ if (dY) {
+ dX1 = (TriFace->Scrx[i1] - X1) / dY;
+ dZ1 = (TriFace->Scrz[i1] - Z1) / dY;
+ dC1 = (TriFace->Shades[i1]*65535.0f - C1) / dY;
+ dU1 = (MappingU2 - U1) / dY;
+ dV1 = (MappingV2 - V1) / dY;
+ if (dX2 < dX1) {
+ dX2 ^= dX1; dX1 ^= dX2; dX2 ^= dX1;
+ dU2 ^= dU1; dU1 ^= dU2; dU2 ^= dU1;
+ dV2 ^= dV1; dV1 ^= dV2; dV2 ^= dV1;
+ dC2 ^= dC1; dC1 ^= dC2; dC2 ^= dC1;
+ dZL = dZ1; dZ1 = dZ2; dZ2 = dZL;
+ stat = 2;
+ } else stat = 1;
+ } else {
+ if (TriFace->Scrx[i1] > X1) {
+ X2 = TriFace->Scrx[i1];
+ Z2 = TriFace->Scrz[i1];
+ C2 = TriFace->Shades[i1]*65535.0f;
+ U2 = MappingU2;
+ V2 = MappingV2;
+ stat = 2|4;
+ } else {
+ X1 = TriFace->Scrx[i1];
+ Z1 = TriFace->Scrz[i1];
+ C1 = TriFace->Shades[i1]*65535.0f;
+ U1 = MappingU2;
+ V1 = MappingV2;
+ stat = 1|8;
+ }
+ }
+
+ gmem += (Y0 * cam->ScreenWidth);
+ zbuf += (Y0 * cam->ScreenWidth);
+
+ XL1 = (((dX1-dX2)*dY+(1<<19))>>20);
+ if (XL1) {
+ dUL = ((dU1-dU2)*dY)/XL1;
+ dVL = ((dV1-dV2)*dY)/XL1;
+ if (zb) dZL = ((dZ1-dZ2)*dY)/XL1;
+ dCL = ((dC1-dC2)*dY)/XL1;
+ } else {
+ XL1 = ((X2-X1+(1<<19))>>20);
+ if (XL1) {
+ dUL = (U2-U1)/XL1;
+ dVL = (V2-V1)/XL1;
+ if (zb) dZL = (Z2-Z1)/XL1;
+ dCL = (C2-C1)/(XL1);
+ }
+ }
+ while (Y0 < Y2) {
+ if (Y0 == Y1) {
+ dY = Y2 - ((TriFace->Scry[i1]+(1<<19))>>20);
+ if (dY) {
+ if (stat & 1) {
+ X1 = TriFace->Scrx[i1];
+ dX1 = (TriFace->Scrx[i2]-TriFace->Scrx[i1])/dY;
+ }
+ if (stat & 2) {
+ X2 = TriFace->Scrx[i1];
+ dX2 = (TriFace->Scrx[i2]-TriFace->Scrx[i1])/dY;
+ }
+ if (stat & 4) {
+ X1 = TriFace->Scrx[i0];
+ dX1 = (TriFace->Scrx[i2]-TriFace->Scrx[i0])/dY;
+ }
+ if (stat & 8) {
+ X2 = TriFace->Scrx[i0];
+ dX2 = (TriFace->Scrx[i2]-TriFace->Scrx[i0])/dY;
+ }
+ dZ1 = (TriFace->Scrz[i2]-Z1)/dY;
+ dV1 = (MappingV3 - V1) / dY;
+ dU1 = (MappingU3 - U1) / dY;
+ dC1 = (TriFace->Shades[i2]*65535.0f-C1)/dY;
+ }
+ }
+ XL1 = (X1+(1<<19))>>20;
+ XL2 = (X2+(1<<19))>>20;
+ CL = C1;
+ ZL = Z1;
+ UL = U1;
+ VL = V1;
+ if ((XL2-XL1) > 0) {
+ XL2 -= XL1;
+ gmem += XL1;
+ zbuf += XL1;
+ XL1 += XL2;
+ if (zb) do {
+ if (*zbuf < ZL) {
+ int av;
+ if (CL < 0) av=addtable[0];
+ else if (CL > (255<<8)) av=addtable[255];
+ else av=addtable[CL>>8];
+ *zbuf = ZL;
+ *gmem = remap[av +
+ texture[((UL>>16)&MappingU_AND) +
+ ((VL>>vshift)&MappingV_AND)]];
+ }
+ zbuf++;
+ gmem++;
+ ZL += dZL;
+ CL += dCL;
+ UL += dUL;
+ VL += dVL;
+ } while (--XL2);
+ else do {
+ int av;
+ if (CL < 0) av=addtable[0];
+ else if (CL > (255<<8)) av=addtable[255];
+ else av=addtable[CL>>8];
+ *gmem++ = remap[av +
+ texture[((UL>>16)&MappingU_AND) +
+ ((VL>>vshift)&MappingV_AND)]];
+ CL += dCL;
+ UL += dUL;
+ VL += dVL;
+ } while (--XL2);
+ gmem -= XL1;
+ zbuf -= XL1;
+ }
+ zbuf += cam->ScreenWidth;
+ gmem += cam->ScreenWidth;
+ Z1 += dZ1;
+ X1 += dX1;
+ X2 += dX2;
+ C1 += dC1;
+ U1 += dU1;
+ V1 += dV1;
+ Y0++;
+ }
+}
generated by cgit (git 2.34.1) at 2025-05-04 08:48:46 -0400