diff options
Diffstat (limited to 'src/mesa/swrast/s_tritemp.h')
| -rw-r--r-- | src/mesa/swrast/s_tritemp.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_tritemp.h b/src/mesa/swrast/s_tritemp.h index 2e25e531cc..3362f3892d 100644 --- a/src/mesa/swrast/s_tritemp.h +++ b/src/mesa/swrast/s_tritemp.h @@ -192,6 +192,9 @@ static void NAME(GLcontext *ctx, const SWvertex *v0, printf(" %g, %g, %g\n", v1->win[0], v1->win[1], v1->win[2]); printf(" %g, %g, %g\n", v2->win[0], v2->win[1], v2->win[2]); */ + ASSERT(v0->win[2] >= 0.0); + ASSERT(v1->win[2] >= 0.0); + ASSERT(v2->win[2] >= 0.0); /* Compute fixed point x,y coords w/ half-pixel offsets and snapping. * And find the order of the 3 vertices along the Y axis. @@ -530,8 +533,8 @@ static void NAME(GLcontext *ctx, const SWvertex *v0, #ifdef INTERP_INDEX span.interpMask |= SPAN_INDEX; if (ctx->Light.ShadeModel == GL_SMOOTH) { - GLfloat eMaj_di = (GLfloat) ((GLint) vMax->index - (GLint) vMin->index); - GLfloat eBot_di = (GLfloat) ((GLint) vMid->index - (GLint) vMin->index); + GLfloat eMaj_di = vMax->index - vMin->index; + GLfloat eBot_di = vMid->index - vMin->index; didx = oneOverArea * (eMaj_di * eBot.dy - eMaj.dy * eBot_di); didy = oneOverArea * (eMaj.dx * eBot_di - eMaj_di * eBot.dx); span.indexStep = SignedFloatToFixed(didx); @@ -907,7 +910,7 @@ static void NAME(GLcontext *ctx, const SWvertex *v0, diOuter = SignedFloatToFixed(didy + dxOuter * didx); } else { - iLeft = (GLfixed) (v2->index * FIXED_SCALE); + iLeft = FloatToFixed(v2->index); diOuter = 0; } #endif |