-/* $Id: s_tritemp.h,v 1.37 2002/04/19 14:05:50 brianp Exp $ */
+/* $Id: s_tritemp.h,v 1.38 2002/08/07 15:18:42 brianp Exp $ */
/*
* Mesa 3-D graphics library
const GLint snapMask = ~((FIXED_ONE / 16) - 1); /* for x/y coord snapping */
GLfixed vMin_fx, vMin_fy, vMid_fx, vMid_fy, vMax_fx, vMax_fy;
- struct sw_span *span = SWRAST_CONTEXT(ctx)->span;
+ struct sw_span span;
INIT_SPAN(span, GL_POLYGON, 0, 0, 0);
/* compute d?/dx and d?/dy derivatives */
#ifdef INTERP_Z
- span->interpMask |= SPAN_Z;
+ span.interpMask |= SPAN_Z;
{
GLfloat eMaj_dz, eBot_dz;
eMaj_dz = vMax->win[2] - vMin->win[2];
dzdy = oneOverArea * (eMaj.dx * eBot_dz - eMaj_dz * eBot.dx);
}
if (depthBits <= 16)
- span->zStep = SignedFloatToFixed(dzdx);
+ span.zStep = SignedFloatToFixed(dzdx);
else
- span->zStep = (GLint) dzdx;
+ span.zStep = (GLint) dzdx;
}
#endif
#ifdef INTERP_FOG
- span->interpMask |= SPAN_FOG;
+ span.interpMask |= SPAN_FOG;
{
const GLfloat eMaj_dfog = vMax->fog - vMin->fog;
const GLfloat eBot_dfog = vMid->fog - vMin->fog;
- span->fogStep = oneOverArea * (eMaj_dfog * eBot.dy - eMaj.dy * eBot_dfog);
+ span.fogStep = oneOverArea * (eMaj_dfog * eBot.dy - eMaj.dy * eBot_dfog);
dfogdy = oneOverArea * (eMaj.dx * eBot_dfog - eMaj_dfog * eBot.dx);
}
#endif
#ifdef INTERP_RGB
- span->interpMask |= SPAN_RGBA;
+ span.interpMask |= SPAN_RGBA;
if (ctx->Light.ShadeModel == GL_SMOOTH) {
GLfloat eMaj_dr, eBot_dr;
GLfloat eMaj_dg, eBot_dg;
eBot_dr = (GLfloat) ((GLint) vMid->color[RCOMP] -
(GLint) vMin->color[RCOMP]);
drdx = oneOverArea * (eMaj_dr * eBot.dy - eMaj.dy * eBot_dr);
- span->redStep = SignedFloatToFixed(drdx);
+ span.redStep = SignedFloatToFixed(drdx);
drdy = oneOverArea * (eMaj.dx * eBot_dr - eMaj_dr * eBot.dx);
eMaj_dg = (GLfloat) ((GLint) vMax->color[GCOMP] -
(GLint) vMin->color[GCOMP]);
eBot_dg = (GLfloat) ((GLint) vMid->color[GCOMP] -
(GLint) vMin->color[GCOMP]);
dgdx = oneOverArea * (eMaj_dg * eBot.dy - eMaj.dy * eBot_dg);
- span->greenStep = SignedFloatToFixed(dgdx);
+ span.greenStep = SignedFloatToFixed(dgdx);
dgdy = oneOverArea * (eMaj.dx * eBot_dg - eMaj_dg * eBot.dx);
eMaj_db = (GLfloat) ((GLint) vMax->color[BCOMP] -
(GLint) vMin->color[BCOMP]);
eBot_db = (GLfloat) ((GLint) vMid->color[BCOMP] -
(GLint) vMin->color[BCOMP]);
dbdx = oneOverArea * (eMaj_db * eBot.dy - eMaj.dy * eBot_db);
- span->blueStep = SignedFloatToFixed(dbdx);
+ span.blueStep = SignedFloatToFixed(dbdx);
dbdy = oneOverArea * (eMaj.dx * eBot_db - eMaj_db * eBot.dx);
# ifdef INTERP_ALPHA
eMaj_da = (GLfloat) ((GLint) vMax->color[ACOMP] -
eBot_da = (GLfloat) ((GLint) vMid->color[ACOMP] -
(GLint) vMin->color[ACOMP]);
dadx = oneOverArea * (eMaj_da * eBot.dy - eMaj.dy * eBot_da);
- span->alphaStep = SignedFloatToFixed(dadx);
+ span.alphaStep = SignedFloatToFixed(dadx);
dady = oneOverArea * (eMaj.dx * eBot_da - eMaj_da * eBot.dx);
# endif
}
else {
ASSERT (ctx->Light.ShadeModel == GL_FLAT);
- span->interpMask |= SPAN_FLAT;
+ span.interpMask |= SPAN_FLAT;
drdx = drdy = 0.0F;
dgdx = dgdy = 0.0F;
dbdx = dbdy = 0.0F;
- span->redStep = 0;
- span->greenStep = 0;
- span->blueStep = 0;
+ span.redStep = 0;
+ span.greenStep = 0;
+ span.blueStep = 0;
# ifdef INTERP_ALPHA
dadx = dady = 0.0F;
- span->alphaStep = 0;
+ span.alphaStep = 0;
# endif
}
#endif
#ifdef INTERP_FLOAT_RGBA
- span->interpMask |= SPAN_RGBA;
+ span.interpMask |= SPAN_RGBA;
if (ctx->Light.ShadeModel == GL_SMOOTH) {
GLfloat eMaj_dr, eBot_dr;
GLfloat eMaj_dg, eBot_dg;
eMaj_dr = vMax->color[RCOMP] - vMin->color[RCOMP];
eBot_dr = vMid->color[RCOMP] - vMin->color[RCOMP];
drdx = oneOverArea * (eMaj_dr * eBot.dy - eMaj.dy * eBot_dr);
- span->redStep = drdx;
+ span.redStep = drdx;
drdy = oneOverArea * (eMaj.dx * eBot_dr - eMaj_dr * eBot.dx);
eMaj_dg = vMax->color[GCOMP] - vMin->color[GCOMP];
eBot_dg = vMid->color[GCOMP] - vMin->color[GCOMP];
dgdx = oneOverArea * (eMaj_dg * eBot.dy - eMaj.dy * eBot_dg);
- span->greenStep = dgdx;
+ span.greenStep = dgdx;
dgdy = oneOverArea * (eMaj.dx * eBot_dg - eMaj_dg * eBot.dx);
eMaj_db = vMax->color[BCOMP] - vMin->color[BCOMP];
eBot_db = vMid->color[BCOMP] - vMin->color[BCOMP];
dbdx = oneOverArea * (eMaj_db * eBot.dy - eMaj.dy * eBot_db);
- span->blueStep = dbdx;
+ span.blueStep = dbdx;
dbdy = oneOverArea * (eMaj.dx * eBot_db - eMaj_db * eBot.dx);
eMaj_da = vMax->color[ACOMP] - vMin->color[ACOMP];
eBot_da = vMid->color[ACOMP] - vMin->color[ACOMP];
dadx = oneOverArea * (eMaj_da * eBot.dy - eMaj.dy * eBot_da);
- span->alphaStep = dadx;
+ span.alphaStep = dadx;
dady = oneOverArea * (eMaj.dx * eBot_da - eMaj_da * eBot.dx);
}
else {
- drdx = drdy = span->redStep = 0.0F;
- dgdx = dgdy = span->greenStep = 0.0F;
- dbdx = dbdy = span->blueStep = 0.0F;
- dadx = dady = span->alphaStep = 0.0F;
+ drdx = drdy = span.redStep = 0.0F;
+ dgdx = dgdy = span.greenStep = 0.0F;
+ dbdx = dbdy = span.blueStep = 0.0F;
+ dadx = dady = span.alphaStep = 0.0F;
}
#endif
#ifdef INTERP_SPEC
- span->interpMask |= SPAN_SPEC;
+ span.interpMask |= SPAN_SPEC;
if (ctx->Light.ShadeModel == GL_SMOOTH) {
GLfloat eMaj_dsr, eBot_dsr;
GLfloat eMaj_dsg, eBot_dsg;
eBot_dsr = (GLfloat) ((GLint) vMid->specular[RCOMP] -
(GLint) vMin->specular[RCOMP]);
dsrdx = oneOverArea * (eMaj_dsr * eBot.dy - eMaj.dy * eBot_dsr);
- span->specRedStep = SignedFloatToFixed(dsrdx);
+ span.specRedStep = SignedFloatToFixed(dsrdx);
dsrdy = oneOverArea * (eMaj.dx * eBot_dsr - eMaj_dsr * eBot.dx);
eMaj_dsg = (GLfloat) ((GLint) vMax->specular[GCOMP] -
(GLint) vMin->specular[GCOMP]);
eBot_dsg = (GLfloat) ((GLint) vMid->specular[GCOMP] -
(GLint) vMin->specular[GCOMP]);
dsgdx = oneOverArea * (eMaj_dsg * eBot.dy - eMaj.dy * eBot_dsg);
- span->specGreenStep = SignedFloatToFixed(dsgdx);
+ span.specGreenStep = SignedFloatToFixed(dsgdx);
dsgdy = oneOverArea * (eMaj.dx * eBot_dsg - eMaj_dsg * eBot.dx);
eMaj_dsb = (GLfloat) ((GLint) vMax->specular[BCOMP] -
(GLint) vMin->specular[BCOMP]);
eBot_dsb = (GLfloat) ((GLint) vMid->specular[BCOMP] -
(GLint) vMin->specular[BCOMP]);
dsbdx = oneOverArea * (eMaj_dsb * eBot.dy - eMaj.dy * eBot_dsb);
- span->specBlueStep = SignedFloatToFixed(dsbdx);
+ span.specBlueStep = SignedFloatToFixed(dsbdx);
dsbdy = oneOverArea * (eMaj.dx * eBot_dsb - eMaj_dsb * eBot.dx);
}
else {
dsrdx = dsrdy = 0.0F;
dsgdx = dsgdy = 0.0F;
dsbdx = dsbdy = 0.0F;
- span->specRedStep = 0;
- span->specGreenStep = 0;
- span->specBlueStep = 0;
+ span.specRedStep = 0;
+ span.specGreenStep = 0;
+ span.specBlueStep = 0;
}
#endif
#ifdef INTERP_FLOAT_SPEC
- span->interpMask |= SPAN_SPEC;
+ span.interpMask |= SPAN_SPEC;
if (ctx->Light.ShadeModel == GL_SMOOTH) {
GLfloat eMaj_dsr, eBot_dsr;
GLfloat eMaj_dsg, eBot_dsg;
eMaj_dsr = vMax->specular[RCOMP] - vMin->specular[RCOMP];
eBot_dsr = vMid->specular[RCOMP] - vMin->specular[RCOMP];
dsrdx = oneOverArea * (eMaj_dsr * eBot.dy - eMaj.dy * eBot_dsr);
- span->specRedStep = dsrdx;
+ span.specRedStep = dsrdx;
dsrdy = oneOverArea * (eMaj.dx * eBot_dsr - eMaj_dsr * eBot.dx);
eMaj_dsg = vMax->specular[GCOMP] - vMin->specular[GCOMP];
eBot_dsg = vMid->specular[GCOMP] - vMin->specular[GCOMP];
dsgdx = oneOverArea * (eMaj_dsg * eBot.dy - eMaj.dy * eBot_dsg);
- span->specGreenStep = dsgdx;
+ span.specGreenStep = dsgdx;
dsgdy = oneOverArea * (eMaj.dx * eBot_dsg - eMaj_dsg * eBot.dx);
eMaj_dsb = vMax->specular[BCOMP] - vMin->specular[BCOMP];
eBot_dsb = vMid->specular[BCOMP] - vMin->specular[BCOMP];
dsbdx = oneOverArea * (eMaj_dsb * eBot.dy - eMaj.dy * eBot_dsb);
- span->specBlueStep = dsbdx;
+ span.specBlueStep = dsbdx;
dsbdy = oneOverArea * (eMaj.dx * eBot_dsb - eMaj_dsb * eBot.dx);
}
else {
- dsrdx = dsrdy = span->specRedStep = 0;
- dsgdx = dsgdy = span->specGreenStep = 0;
- dsbdx = dsbdy = span->specBlueStep = 0;
+ dsrdx = dsrdy = span.specRedStep = 0;
+ dsgdx = dsgdy = span.specGreenStep = 0;
+ dsbdx = dsbdy = span.specBlueStep = 0;
}
#endif
#ifdef INTERP_INDEX
- span->interpMask |= SPAN_INDEX;
+ span.interpMask |= SPAN_INDEX;
if (ctx->Light.ShadeModel == GL_SMOOTH) {
GLfloat eMaj_di, eBot_di;
eMaj_di = (GLfloat) ((GLint) vMax->index - (GLint) vMin->index);
eBot_di = (GLfloat) ((GLint) vMid->index - (GLint) vMin->index);
didx = oneOverArea * (eMaj_di * eBot.dy - eMaj.dy * eBot_di);
- span->indexStep = SignedFloatToFixed(didx);
+ span.indexStep = SignedFloatToFixed(didx);
didy = oneOverArea * (eMaj.dx * eBot_di - eMaj_di * eBot.dx);
}
else {
- span->interpMask |= SPAN_FLAT;
+ span.interpMask |= SPAN_FLAT;
didx = didy = 0.0F;
- span->indexStep = 0;
+ span.indexStep = 0;
}
#endif
#ifdef INTERP_INT_TEX
- span->interpMask |= SPAN_INT_TEXTURE;
+ span.interpMask |= SPAN_INT_TEXTURE;
{
GLfloat eMaj_ds, eBot_ds;
eMaj_ds = (vMax->texcoord[0][0] - vMin->texcoord[0][0]) * S_SCALE;
eBot_ds = (vMid->texcoord[0][0] - vMin->texcoord[0][0]) * S_SCALE;
dsdx = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
- span->intTexStep[0] = SignedFloatToFixed(dsdx);
+ span.intTexStep[0] = SignedFloatToFixed(dsdx);
dsdy = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx);
}
{
eMaj_dt = (vMax->texcoord[0][1] - vMin->texcoord[0][1]) * T_SCALE;
eBot_dt = (vMid->texcoord[0][1] - vMin->texcoord[0][1]) * T_SCALE;
dtdx = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt);
- span->intTexStep[1] = SignedFloatToFixed(dtdx);
+ span.intTexStep[1] = SignedFloatToFixed(dtdx);
dtdy = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx);
}
#endif
#ifdef INTERP_TEX
- span->interpMask |= SPAN_TEXTURE;
+ span.interpMask |= SPAN_TEXTURE;
{
GLfloat wMax = vMax->win[3];
GLfloat wMin = vMin->win[3];
eBot_ds = vMid->texcoord[0][0] * wMid - vMin->texcoord[0][0] * wMin;
dsdx = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
dsdy = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx);
- span->texStepX[0][0] = dsdx;
- span->texStepY[0][0] = dsdy;
+ span.texStepX[0][0] = dsdx;
+ span.texStepY[0][0] = dsdy;
eMaj_dt = vMax->texcoord[0][1] * wMax - vMin->texcoord[0][1] * wMin;
eBot_dt = vMid->texcoord[0][1] * wMid - vMin->texcoord[0][1] * wMin;
dtdx = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt);
dtdy = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx);
- span->texStepX[0][1] = dtdx;
- span->texStepY[0][1] = dtdy;
+ span.texStepX[0][1] = dtdx;
+ span.texStepY[0][1] = dtdy;
eMaj_du = vMax->texcoord[0][2] * wMax - vMin->texcoord[0][2] * wMin;
eBot_du = vMid->texcoord[0][2] * wMid - vMin->texcoord[0][2] * wMin;
dudx = oneOverArea * (eMaj_du * eBot.dy - eMaj.dy * eBot_du);
dudy = oneOverArea * (eMaj.dx * eBot_du - eMaj_du * eBot.dx);
- span->texStepX[0][2] = dudx;
- span->texStepY[0][2] = dudy;
+ span.texStepX[0][2] = dudx;
+ span.texStepY[0][2] = dudy;
eMaj_dv = vMax->texcoord[0][3] * wMax - vMin->texcoord[0][3] * wMin;
eBot_dv = vMid->texcoord[0][3] * wMid - vMin->texcoord[0][3] * wMin;
dvdx = oneOverArea * (eMaj_dv * eBot.dy - eMaj.dy * eBot_dv);
dvdy = oneOverArea * (eMaj.dx * eBot_dv - eMaj_dv * eBot.dx);
- span->texStepX[0][3] = dvdx;
- span->texStepY[0][3] = dvdy;
+ span.texStepX[0][3] = dvdx;
+ span.texStepY[0][3] = dvdy;
}
#endif
#ifdef INTERP_MULTITEX
- span->interpMask |= SPAN_TEXTURE;
+ span.interpMask |= SPAN_TEXTURE;
{
GLfloat wMax = vMax->win[3];
GLfloat wMin = vMin->win[3];
- vMin->texcoord[u][0] * wMin;
dsdx[u] = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
dsdy[u] = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx);
- span->texStepX[u][0] = dsdx[u];
- span->texStepY[u][0] = dsdy[u];
+ span.texStepX[u][0] = dsdx[u];
+ span.texStepY[u][0] = dsdy[u];
eMaj_dt = vMax->texcoord[u][1] * wMax
- vMin->texcoord[u][1] * wMin;
- vMin->texcoord[u][1] * wMin;
dtdx[u] = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt);
dtdy[u] = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx);
- span->texStepX[u][1] = dtdx[u];
- span->texStepY[u][1] = dtdy[u];
+ span.texStepX[u][1] = dtdx[u];
+ span.texStepY[u][1] = dtdy[u];
eMaj_du = vMax->texcoord[u][2] * wMax
- vMin->texcoord[u][2] * wMin;
- vMin->texcoord[u][2] * wMin;
dudx[u] = oneOverArea * (eMaj_du * eBot.dy - eMaj.dy * eBot_du);
dudy[u] = oneOverArea * (eMaj.dx * eBot_du - eMaj_du * eBot.dx);
- span->texStepX[u][2] = dudx[u];
- span->texStepY[u][2] = dudy[u];
+ span.texStepX[u][2] = dudx[u];
+ span.texStepY[u][2] = dudy[u];
eMaj_dv = vMax->texcoord[u][3] * wMax
- vMin->texcoord[u][3] * wMin;
- vMin->texcoord[u][3] * wMin;
dvdx[u] = oneOverArea * (eMaj_dv * eBot.dy - eMaj.dy * eBot_dv);
dvdy[u] = oneOverArea * (eMaj.dx * eBot_dv - eMaj_dv * eBot.dx);
- span->texStepX[u][3] = dvdx[u];
- span->texStepY[u][3] = dvdy[u];
+ span.texStepX[u][3] = dvdx[u];
+ span.texStepY[u][3] = dvdy[u];
}
}
}
(void) dxOuter;
fy = eLeft->fsy;
- span->y = FixedToInt(fy);
+ span.y = FixedToInt(fy);
adjx = (float)(fx - eLeft->fx0); /* SCALED! */
adjy = eLeft->adjy; /* SCALED! */
#ifdef PIXEL_ADDRESS
{
- pRow = (PIXEL_TYPE *) PIXEL_ADDRESS(FixedToInt(fxLeftEdge), span->y);
+ pRow = (PIXEL_TYPE *) PIXEL_ADDRESS(FixedToInt(fxLeftEdge), span.y);
dPRowOuter = -((int)BYTES_PER_ROW) + idxOuter * sizeof(PIXEL_TYPE);
/* negative because Y=0 at bottom and increases upward */
}
}
# ifdef DEPTH_TYPE
zRow = (DEPTH_TYPE *)
- _mesa_zbuffer_address(ctx, FixedToInt(fxLeftEdge), span->y);
+ _mesa_zbuffer_address(ctx, FixedToInt(fxLeftEdge), span.y);
dZRowOuter = (ctx->DrawBuffer->Width + idxOuter) * sizeof(DEPTH_TYPE);
# endif
}
#endif
#ifdef INTERP_FOG
- fogLeft = vLower->fog + (span->fogStep * adjx + dfogdy * adjy)
+ fogLeft = vLower->fog + (span.fogStep * adjx + dfogdy * adjy)
* (1.0F/FIXED_SCALE);
- dfogOuter = dfogdy + dxOuter * span->fogStep;
+ dfogOuter = dfogdy + dxOuter * span.fogStep;
#endif
#ifdef INTERP_RGB
if (ctx->Light.ShadeModel == GL_SMOOTH) {
GLfloat invW = vLower->win[3];
GLfloat s0, t0, u0, v0;
s0 = vLower->texcoord[0][0] * invW;
- sLeft = s0 + (span->texStepX[0][0] * adjx + dsdy * adjy)
+ sLeft = s0 + (span.texStepX[0][0] * adjx + dsdy * adjy)
* (1.0F/FIXED_SCALE);
- dsOuter = dsdy + dxOuter * span->texStepX[0][0];
+ dsOuter = dsdy + dxOuter * span.texStepX[0][0];
t0 = vLower->texcoord[0][1] * invW;
- tLeft = t0 + (span->texStepX[0][1] * adjx + dtdy * adjy)
+ tLeft = t0 + (span.texStepX[0][1] * adjx + dtdy * adjy)
* (1.0F/FIXED_SCALE);
- dtOuter = dtdy + dxOuter * span->texStepX[0][1];
+ dtOuter = dtdy + dxOuter * span.texStepX[0][1];
u0 = vLower->texcoord[0][2] * invW;
- uLeft = u0 + (span->texStepX[0][2] * adjx + dudy * adjy)
+ uLeft = u0 + (span.texStepX[0][2] * adjx + dudy * adjy)
* (1.0F/FIXED_SCALE);
- duOuter = dudy + dxOuter * span->texStepX[0][2];
+ duOuter = dudy + dxOuter * span.texStepX[0][2];
v0 = vLower->texcoord[0][3] * invW;
- vLeft = v0 + (span->texStepX[0][3] * adjx + dvdy * adjy)
+ vLeft = v0 + (span.texStepX[0][3] * adjx + dvdy * adjy)
* (1.0F/FIXED_SCALE);
- dvOuter = dvdy + dxOuter * span->texStepX[0][3];
+ dvOuter = dvdy + dxOuter * span.texStepX[0][3];
}
#endif
#ifdef INTERP_MULTITEX
GLfloat invW = vLower->win[3];
GLfloat s0, t0, u0, v0;
s0 = vLower->texcoord[u][0] * invW;
- sLeft[u] = s0 + (span->texStepX[u][0] * adjx + dsdy[u]
+ sLeft[u] = s0 + (span.texStepX[u][0] * adjx + dsdy[u]
* adjy) * (1.0F/FIXED_SCALE);
- dsOuter[u] = dsdy[u] + dxOuter * span->texStepX[u][0];
+ dsOuter[u] = dsdy[u] + dxOuter * span.texStepX[u][0];
t0 = vLower->texcoord[u][1] * invW;
- tLeft[u] = t0 + (span->texStepX[u][1] * adjx + dtdy[u]
+ tLeft[u] = t0 + (span.texStepX[u][1] * adjx + dtdy[u]
* adjy) * (1.0F/FIXED_SCALE);
- dtOuter[u] = dtdy[u] + dxOuter * span->texStepX[u][1];
+ dtOuter[u] = dtdy[u] + dxOuter * span.texStepX[u][1];
u0 = vLower->texcoord[u][2] * invW;
- uLeft[u] = u0 + (span->texStepX[u][2] * adjx + dudy[u]
+ uLeft[u] = u0 + (span.texStepX[u][2] * adjx + dudy[u]
* adjy) * (1.0F/FIXED_SCALE);
- duOuter[u] = dudy[u] + dxOuter * span->texStepX[u][2];
+ duOuter[u] = dudy[u] + dxOuter * span.texStepX[u][2];
v0 = vLower->texcoord[u][3] * invW;
- vLeft[u] = v0 + (span->texStepX[u][3] * adjx + dvdy[u]
+ vLeft[u] = v0 + (span.texStepX[u][3] * adjx + dvdy[u]
* adjy) * (1.0F/FIXED_SCALE);
- dvOuter[u] = dvdy[u] + dxOuter * span->texStepX[u][3];
+ dvOuter[u] = dvdy[u] + dxOuter * span.texStepX[u][3];
}
}
}
# ifdef DEPTH_TYPE
dZRowInner = dZRowOuter + sizeof(DEPTH_TYPE);
# endif
- fdzInner = fdzOuter + span->zStep;
+ fdzInner = fdzOuter + span.zStep;
#endif
#ifdef INTERP_FOG
- dfogInner = dfogOuter + span->fogStep;
+ dfogInner = dfogOuter + span.fogStep;
#endif
#if defined(INTERP_RGB) || defined(INTERP_FLOAT_RGBA)
- fdrInner = fdrOuter + span->redStep;
- fdgInner = fdgOuter + span->greenStep;
- fdbInner = fdbOuter + span->blueStep;
+ fdrInner = fdrOuter + span.redStep;
+ fdgInner = fdgOuter + span.greenStep;
+ fdbInner = fdbOuter + span.blueStep;
#endif
#if defined(INTERP_ALPHA) || defined(INTERP_FLOAT_RGBA)
- fdaInner = fdaOuter + span->alphaStep;
+ fdaInner = fdaOuter + span.alphaStep;
#endif
#if defined(INTERP_SPEC) || defined(INTERP_FLOAT_SPEC)
- fdsrInner = fdsrOuter + span->specRedStep;
- fdsgInner = fdsgOuter + span->specGreenStep;
- fdsbInner = fdsbOuter + span->specBlueStep;
+ fdsrInner = fdsrOuter + span.specRedStep;
+ fdsgInner = fdsgOuter + span.specGreenStep;
+ fdsbInner = fdsbOuter + span.specBlueStep;
#endif
#ifdef INTERP_INDEX
- fdiInner = fdiOuter + span->indexStep;
+ fdiInner = fdiOuter + span.indexStep;
#endif
#ifdef INTERP_INT_TEX
- fdsInner = fdsOuter + span->intTexStep[0];
- fdtInner = fdtOuter + span->intTexStep[1];
+ fdsInner = fdsOuter + span.intTexStep[0];
+ fdtInner = fdtOuter + span.intTexStep[1];
#endif
#ifdef INTERP_TEX
- dsInner = dsOuter + span->texStepX[0][0];
- dtInner = dtOuter + span->texStepX[0][1];
- duInner = duOuter + span->texStepX[0][2];
- dvInner = dvOuter + span->texStepX[0][3];
+ dsInner = dsOuter + span.texStepX[0][0];
+ dtInner = dtOuter + span.texStepX[0][1];
+ duInner = duOuter + span.texStepX[0][2];
+ dvInner = dvOuter + span.texStepX[0][3];
#endif
#ifdef INTERP_MULTITEX
{
GLuint u;
for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
if (ctx->Texture.Unit[u]._ReallyEnabled) {
- dsInner[u] = dsOuter[u] + span->texStepX[u][0];
- dtInner[u] = dtOuter[u] + span->texStepX[u][1];
- duInner[u] = duOuter[u] + span->texStepX[u][2];
- dvInner[u] = dvOuter[u] + span->texStepX[u][3];
+ dsInner[u] = dsOuter[u] + span.texStepX[u][0];
+ dtInner[u] = dtOuter[u] + span.texStepX[u][1];
+ duInner[u] = duOuter[u] + span.texStepX[u][2];
+ dvInner[u] = dvOuter[u] + span.texStepX[u][3];
}
}
}
/* ff = fixed-pt fragment */
const GLint right = FixedToInt(fxRightEdge);
- span->x = FixedToInt(fxLeftEdge);
+ span.x = FixedToInt(fxLeftEdge);
- if (right <= span->x)
- span->end = 0;
+ if (right <= span.x)
+ span.end = 0;
else
- span->end = right - span->x;
+ span.end = right - span.x;
#ifdef INTERP_Z
- span->z = fz;
+ span.z = fz;
#endif
#ifdef INTERP_FOG
- span->fog = fogLeft;
+ span.fog = fogLeft;
#endif
#if defined(INTERP_RGB) || defined(INTERP_FLOAT_RGBA)
- span->red = fr;
- span->green = fg;
- span->blue = fb;
+ span.red = fr;
+ span.green = fg;
+ span.blue = fb;
#endif
#if defined(INTERP_ALPHA) || defined(INTERP_FLOAT_RGBA)
- span->alpha = fa;
+ span.alpha = fa;
#endif
#if defined(INTERP_SPEC) || defined(INTERP_FLOAT_SPEC)
- span->specRed = fsr;
- span->specGreen = fsg;
- span->specBlue = fsb;
+ span.specRed = fsr;
+ span.specGreen = fsg;
+ span.specBlue = fsb;
#endif
#ifdef INTERP_INDEX
- span->index = fi;
+ span.index = fi;
#endif
#ifdef INTERP_INT_TEX
- span->intTex[0] = fs;
- span->intTex[1] = ft;
+ span.intTex[0] = fs;
+ span.intTex[1] = ft;
#endif
#ifdef INTERP_TEX
- span->tex[0][0] = sLeft;
- span->tex[0][1] = tLeft;
- span->tex[0][2] = uLeft;
- span->tex[0][3] = vLeft;
+ span.tex[0][0] = sLeft;
+ span.tex[0][1] = tLeft;
+ span.tex[0][2] = uLeft;
+ span.tex[0][3] = vLeft;
#endif
#ifdef INTERP_MULTITEX
GLuint u;
for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
if (ctx->Texture.Unit[u]._ReallyEnabled) {
- span->tex[u][0] = sLeft[u];
- span->tex[u][1] = tLeft[u];
- span->tex[u][2] = uLeft[u];
- span->tex[u][3] = vLeft[u];
+ span.tex[u][0] = sLeft[u];
+ span.tex[u][1] = tLeft[u];
+ span.tex[u][2] = uLeft[u];
+ span.tex[u][3] = vLeft[u];
}
}
}
#ifdef INTERP_RGB
{
/* need this to accomodate round-off errors */
- const GLint len = right - span->x - 1;
- GLfixed ffrend = span->red + len * span->redStep;
- GLfixed ffgend = span->green + len * span->greenStep;
- GLfixed ffbend = span->blue + len * span->blueStep;
+ const GLint len = right - span.x - 1;
+ GLfixed ffrend = span.red + len * span.redStep;
+ GLfixed ffgend = span.green + len * span.greenStep;
+ GLfixed ffbend = span.blue + len * span.blueStep;
if (ffrend < 0) {
- span->red -= ffrend;
- if (span->red < 0)
- span->red = 0;
+ span.red -= ffrend;
+ if (span.red < 0)
+ span.red = 0;
}
if (ffgend < 0) {
- span->green -= ffgend;
- if (span->green < 0)
- span->green = 0;
+ span.green -= ffgend;
+ if (span.green < 0)
+ span.green = 0;
}
if (ffbend < 0) {
- span->blue -= ffbend;
- if (span->blue < 0)
- span->blue = 0;
+ span.blue -= ffbend;
+ if (span.blue < 0)
+ span.blue = 0;
}
}
#endif
#ifdef INTERP_ALPHA
{
- const GLint len = right - span->x - 1;
- GLfixed ffaend = span->alpha + len * span->alphaStep;
+ const GLint len = right - span.x - 1;
+ GLfixed ffaend = span.alpha + len * span.alphaStep;
if (ffaend < 0) {
- span->alpha -= ffaend;
- if (span->alpha < 0)
- span->alpha = 0;
+ span.alpha -= ffaend;
+ if (span.alpha < 0)
+ span.alpha = 0;
}
}
#endif
#ifdef INTERP_SPEC
{
/* need this to accomodate round-off errors */
- const GLint len = right - span->x - 1;
- GLfixed ffsrend = span->specRed + len * span->specRedStep;
- GLfixed ffsgend = span->specGreen + len * span->specGreenStep;
- GLfixed ffsbend = span->specBlue + len * span->specBlueStep;
+ const GLint len = right - span.x - 1;
+ GLfixed ffsrend = span.specRed + len * span.specRedStep;
+ GLfixed ffsgend = span.specGreen + len * span.specGreenStep;
+ GLfixed ffsbend = span.specBlue + len * span.specBlueStep;
if (ffsrend < 0) {
- span->specRed -= ffsrend;
- if (span->specRed < 0)
- span->specRed = 0;
+ span.specRed -= ffsrend;
+ if (span.specRed < 0)
+ span.specRed = 0;
}
if (ffsgend < 0) {
- span->specGreen -= ffsgend;
- if (span->specGreen < 0)
- span->specGreen = 0;
+ span.specGreen -= ffsgend;
+ if (span.specGreen < 0)
+ span.specGreen = 0;
}
if (ffsbend < 0) {
- span->specBlue -= ffsbend;
- if (span->specBlue < 0)
- span->specBlue = 0;
+ span.specBlue -= ffsbend;
+ if (span.specBlue < 0)
+ span.specBlue = 0;
}
}
#endif
#ifdef INTERP_INDEX
- if (span->index < 0) span->index = 0;
+ if (span.index < 0) span.index = 0;
#endif
/* This is where we actually generate fragments */
- if (span->end > 0) {
+ if (span.end > 0) {
RENDER_SPAN( span );
}
* pixel-center x coordinate so that it stays
* on or inside the major edge.
*/
- (span->y)++;
+ (span.y)++;
lines--;
fxLeftEdge += fdxLeftEdge;
projects / mesa.git / commitdiff