diff options
Diffstat (limited to 'src/mesa/swrast/s_aatritemp.h')
| -rw-r--r-- | src/mesa/swrast/s_aatritemp.h | 249 |
1 files changed, 68 insertions, 181 deletions
diff --git a/src/mesa/swrast/s_aatritemp.h b/src/mesa/swrast/s_aatritemp.h index 4162ed68532..34a2305b393 100644 --- a/src/mesa/swrast/s_aatritemp.h +++ b/src/mesa/swrast/s_aatritemp.h @@ -35,16 +35,15 @@ * DO_Z - if defined, compute Z values * DO_RGBA - if defined, compute RGBA values * DO_INDEX - if defined, compute color index values - * DO_SPEC - if defined, compute specular RGB values * DO_ATTRIBS - if defined, compute texcoords, varying, etc. */ /*void triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv )*/ { const SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLfloat *p0 = v0->win; - const GLfloat *p1 = v1->win; - const GLfloat *p2 = v2->win; + const GLfloat *p0 = v0->attrib[FRAG_ATTRIB_WPOS]; + const GLfloat *p1 = v1->attrib[FRAG_ATTRIB_WPOS]; + const GLfloat *p2 = v2->attrib[FRAG_ATTRIB_WPOS]; const SWvertex *vMin, *vMid, *vMax; GLint iyMin, iyMax; GLfloat yMin, yMax; @@ -56,27 +55,15 @@ #ifdef DO_Z GLfloat zPlane[4]; #endif -#ifdef DO_FOG - GLfloat fogPlane[4]; -#else - GLfloat *fog = NULL; -#endif #ifdef DO_RGBA GLfloat rPlane[4], gPlane[4], bPlane[4], aPlane[4]; #endif #ifdef DO_INDEX GLfloat iPlane[4]; #endif -#ifdef DO_SPEC - GLfloat srPlane[4], sgPlane[4], sbPlane[4]; -#endif #if defined(DO_ATTRIBS) - GLfloat sPlane[FRAG_ATTRIB_MAX][4]; /* texture S */ - GLfloat tPlane[FRAG_ATTRIB_MAX][4]; /* texture T */ - GLfloat uPlane[FRAG_ATTRIB_MAX][4]; /* texture R */ - GLfloat vPlane[FRAG_ATTRIB_MAX][4]; /* texture Q */ - GLfloat texWidth[FRAG_ATTRIB_MAX]; - GLfloat texHeight[FRAG_ATTRIB_MAX]; + GLfloat attrPlane[FRAG_ATTRIB_MAX][4][4]; + GLfloat wPlane[4]; /* win[3] */ #endif GLfloat bf = SWRAST_CONTEXT(ctx)->_BackfaceSign; @@ -86,9 +73,9 @@ /* determine bottom to top order of vertices */ { - GLfloat y0 = v0->win[1]; - GLfloat y1 = v1->win[1]; - GLfloat y2 = v2->win[1]; + GLfloat y0 = v0->attrib[FRAG_ATTRIB_WPOS][1]; + GLfloat y1 = v1->attrib[FRAG_ATTRIB_WPOS][1]; + GLfloat y2 = v2->attrib[FRAG_ATTRIB_WPOS][1]; if (y0 <= y1) { if (y1 <= y2) { vMin = v0; vMid = v1; vMax = v2; /* y0<=y1<=y2 */ @@ -113,12 +100,12 @@ } } - majDx = vMax->win[0] - vMin->win[0]; - majDy = vMax->win[1] - vMin->win[1]; + majDx = vMax->attrib[FRAG_ATTRIB_WPOS][0] - vMin->attrib[FRAG_ATTRIB_WPOS][0]; + majDy = vMax->attrib[FRAG_ATTRIB_WPOS][1] - vMin->attrib[FRAG_ATTRIB_WPOS][1]; { - const GLfloat botDx = vMid->win[0] - vMin->win[0]; - const GLfloat botDy = vMid->win[1] - vMin->win[1]; + const GLfloat botDx = vMid->attrib[FRAG_ATTRIB_WPOS][0] - vMin->attrib[FRAG_ATTRIB_WPOS][0]; + const GLfloat botDy = vMid->attrib[FRAG_ATTRIB_WPOS][1] - vMin->attrib[FRAG_ATTRIB_WPOS][1]; const GLfloat area = majDx * botDy - botDx * majDy; /* Do backface culling */ if (area * bf < 0 || area == 0 || IS_INF_OR_NAN(area)) @@ -135,14 +122,6 @@ compute_plane(p0, p1, p2, p0[2], p1[2], p2[2], zPlane); span.arrayMask |= SPAN_Z; #endif -#ifdef DO_FOG - compute_plane(p0, p1, p2, - v0->attrib[FRAG_ATTRIB_FOGC][0], - v1->attrib[FRAG_ATTRIB_FOGC][0], - v2->attrib[FRAG_ATTRIB_FOGC][0], - fogPlane); - span.arrayMask |= SPAN_FOG; -#endif #ifdef DO_RGBA if (ctx->Light.ShadeModel == GL_SMOOTH) { compute_plane(p0, p1, p2, v0->color[RCOMP], v1->color[RCOMP], v2->color[RCOMP], rPlane); @@ -160,62 +139,43 @@ #endif #ifdef DO_INDEX if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(p0, p1, p2, (GLfloat) v0->index, - v1->index, v2->index, iPlane); + compute_plane(p0, p1, p2, (GLfloat) v0->attrib[FRAG_ATTRIB_CI][0], + v1->attrib[FRAG_ATTRIB_CI][0], v2->attrib[FRAG_ATTRIB_CI][0], iPlane); } else { - constant_plane(v2->index, iPlane); + constant_plane(v2->attrib[FRAG_ATTRIB_CI][0], iPlane); } span.arrayMask |= SPAN_INDEX; #endif -#ifdef DO_SPEC - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(p0, p1, p2, v0->specular[RCOMP], v1->specular[RCOMP], v2->specular[RCOMP], srPlane); - compute_plane(p0, p1, p2, v0->specular[GCOMP], v1->specular[GCOMP], v2->specular[GCOMP], sgPlane); - compute_plane(p0, p1, p2, v0->specular[BCOMP], v1->specular[BCOMP], v2->specular[BCOMP], sbPlane); - } - else { - constant_plane(v2->specular[RCOMP], srPlane); - constant_plane(v2->specular[GCOMP], sgPlane); - constant_plane(v2->specular[BCOMP], sbPlane); - } - span.arrayMask |= SPAN_SPEC; -#endif #if defined(DO_ATTRIBS) { - const GLfloat invW0 = v0->win[3]; - const GLfloat invW1 = v1->win[3]; - const GLfloat invW2 = v2->win[3]; + const GLfloat invW0 = v0->attrib[FRAG_ATTRIB_WPOS][3]; + const GLfloat invW1 = v1->attrib[FRAG_ATTRIB_WPOS][3]; + const GLfloat invW2 = v2->attrib[FRAG_ATTRIB_WPOS][3]; + compute_plane(p0, p1, p2, invW0, invW1, invW2, wPlane); + span.attrStepX[FRAG_ATTRIB_WPOS][3] = plane_dx(wPlane); + span.attrStepY[FRAG_ATTRIB_WPOS][3] = plane_dy(wPlane); ATTRIB_LOOP_BEGIN - const GLfloat s0 = v0->attrib[attr][0] * invW0; - const GLfloat s1 = v1->attrib[attr][0] * invW1; - const GLfloat s2 = v2->attrib[attr][0] * invW2; - const GLfloat t0 = v0->attrib[attr][1] * invW0; - const GLfloat t1 = v1->attrib[attr][1] * invW1; - const GLfloat t2 = v2->attrib[attr][1] * invW2; - const GLfloat r0 = v0->attrib[attr][2] * invW0; - const GLfloat r1 = v1->attrib[attr][2] * invW1; - const GLfloat r2 = v2->attrib[attr][2] * invW2; - const GLfloat q0 = v0->attrib[attr][3] * invW0; - const GLfloat q1 = v1->attrib[attr][3] * invW1; - const GLfloat q2 = v2->attrib[attr][3] * invW2; - compute_plane(p0, p1, p2, s0, s1, s2, sPlane[attr]); - compute_plane(p0, p1, p2, t0, t1, t2, tPlane[attr]); - compute_plane(p0, p1, p2, r0, r1, r2, uPlane[attr]); - compute_plane(p0, p1, p2, q0, q1, q2, vPlane[attr]); - if (attr < FRAG_ATTRIB_VAR0 && attr >= FRAG_ATTRIB_TEX0) { - const GLuint u = attr - FRAG_ATTRIB_TEX0; - const struct gl_texture_object *obj = ctx->Texture.Unit[u]._Current; - const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel]; - texWidth[attr] = (GLfloat) texImage->Width; - texHeight[attr] = (GLfloat) texImage->Height; + GLuint c; + if (swrast->_InterpMode[attr] == GL_FLAT) { + for (c = 0; c < 4; c++) { + constant_plane(v2->attrib[attr][c] * invW2, attrPlane[attr][c]); + } } else { - texWidth[attr] = texHeight[attr] = 1.0; + for (c = 0; c < 4; c++) { + const GLfloat a0 = v0->attrib[attr][c] * invW0; + const GLfloat a1 = v1->attrib[attr][c] * invW1; + const GLfloat a2 = v2->attrib[attr][c] * invW2; + compute_plane(p0, p1, p2, a0, a1, a2, attrPlane[attr][c]); + } + } + for (c = 0; c < 4; c++) { + span.attrStepX[attr][c] = plane_dx(attrPlane[attr][c]); + span.attrStepY[attr][c] = plane_dy(attrPlane[attr][c]); } ATTRIB_LOOP_END } - span.arrayMask |= (SPAN_TEXTURE | SPAN_LAMBDA | SPAN_VARYING); #endif /* Begin bottom-to-top scan over the triangle. @@ -224,16 +184,16 @@ * edges, stopping when we find that coverage = 0. If the long edge * is on the left we scan left-to-right. Else, we scan right-to-left. */ - yMin = vMin->win[1]; - yMax = vMax->win[1]; + yMin = vMin->attrib[FRAG_ATTRIB_WPOS][1]; + yMax = vMax->attrib[FRAG_ATTRIB_WPOS][1]; iyMin = (GLint) yMin; iyMax = (GLint) yMax + 1; if (ltor) { /* scan left to right */ - const GLfloat *pMin = vMin->win; - const GLfloat *pMid = vMid->win; - const GLfloat *pMax = vMax->win; + const GLfloat *pMin = vMin->attrib[FRAG_ATTRIB_WPOS]; + const GLfloat *pMid = vMid->attrib[FRAG_ATTRIB_WPOS]; + const GLfloat *pMax = vMax->attrib[FRAG_ATTRIB_WPOS]; const GLfloat dxdy = majDx / majDy; const GLfloat xAdj = dxdy < 0.0F ? -dxdy : 0.0F; GLfloat x = pMin[0] - (yMin - iyMin) * dxdy; @@ -253,6 +213,18 @@ /* enter interior of triangle */ ix = startX; + +#if defined(DO_ATTRIBS) + /* compute attributes at left-most fragment */ + span.attrStart[FRAG_ATTRIB_WPOS][3] = solve_plane(ix + 0.5, iy + 0.5, wPlane); + ATTRIB_LOOP_BEGIN + GLuint c; + for (c = 0; c < 4; c++) { + span.attrStart[attr][c] = solve_plane(ix + 0.5, iy + 0.5, attrPlane[attr][c]); + } + ATTRIB_LOOP_END +#endif + count = 0; while (coverage > 0.0F) { /* (cx,cy) = center of fragment */ @@ -266,9 +238,6 @@ #ifdef DO_Z array->z[count] = (GLuint) solve_plane(cx, cy, zPlane); #endif -#ifdef DO_FOG - array->attribs[FRAG_ATTRIB_FOGC][count][0] = solve_plane(cx, cy, fogPlane); -#endif #ifdef DO_RGBA array->rgba[count][RCOMP] = solve_plane_chan(cx, cy, rPlane); array->rgba[count][GCOMP] = solve_plane_chan(cx, cy, gPlane); @@ -278,25 +247,6 @@ #ifdef DO_INDEX array->index[count] = (GLint) solve_plane(cx, cy, iPlane); #endif -#ifdef DO_SPEC - array->spec[count][RCOMP] = solve_plane_chan(cx, cy, srPlane); - array->spec[count][GCOMP] = solve_plane_chan(cx, cy, sgPlane); - array->spec[count][BCOMP] = solve_plane_chan(cx, cy, sbPlane); -#endif -#if defined(DO_ATTRIBS) - ATTRIB_LOOP_BEGIN - GLfloat invQ = solve_plane_recip(cx, cy, vPlane[attr]); - array->attribs[attr][count][0] = solve_plane(cx, cy, sPlane[attr]) * invQ; - array->attribs[attr][count][1] = solve_plane(cx, cy, tPlane[attr]) * invQ; - array->attribs[attr][count][2] = solve_plane(cx, cy, uPlane[attr]) * invQ; - if (attr < FRAG_ATTRIB_VAR0 && attr >= FRAG_ATTRIB_TEX0) { - const GLuint unit = attr - FRAG_ATTRIB_TEX0; - array->lambda[unit][count] = compute_lambda(sPlane[attr], tPlane[attr], - vPlane[attr], cx, cy, invQ, - texWidth[attr], texHeight[attr]); - } - ATTRIB_LOOP_END -#endif ix++; count++; coverage = compute_coveragef(pMin, pMid, pMax, ix, iy); @@ -308,7 +258,6 @@ span.x = startX; span.y = iy; span.end = (GLuint) ix - (GLuint) startX; - ASSERT(span.interpMask == 0); #if defined(DO_RGBA) _swrast_write_rgba_span(ctx, &span); #else @@ -318,9 +267,9 @@ } else { /* scan right to left */ - const GLfloat *pMin = vMin->win; - const GLfloat *pMid = vMid->win; - const GLfloat *pMax = vMax->win; + const GLfloat *pMin = vMin->attrib[FRAG_ATTRIB_WPOS]; + const GLfloat *pMid = vMid->attrib[FRAG_ATTRIB_WPOS]; + const GLfloat *pMax = vMax->attrib[FRAG_ATTRIB_WPOS]; const GLfloat dxdy = majDx / majDy; const GLfloat xAdj = dxdy > 0 ? dxdy : 0.0F; GLfloat x = pMin[0] - (yMin - iyMin) * dxdy; @@ -358,9 +307,6 @@ #ifdef DO_Z array->z[ix] = (GLuint) solve_plane(cx, cy, zPlane); #endif -#ifdef DO_FOG - array->attribs[FRAG_ATTRIB_FOGC][ix][0] = solve_plane(cx, cy, fogPlane); -#endif #ifdef DO_RGBA array->rgba[ix][RCOMP] = solve_plane_chan(cx, cy, rPlane); array->rgba[ix][GCOMP] = solve_plane_chan(cx, cy, gPlane); @@ -370,33 +316,22 @@ #ifdef DO_INDEX array->index[ix] = (GLint) solve_plane(cx, cy, iPlane); #endif -#ifdef DO_SPEC - array->spec[ix][RCOMP] = solve_plane_chan(cx, cy, srPlane); - array->spec[ix][GCOMP] = solve_plane_chan(cx, cy, sgPlane); - array->spec[ix][BCOMP] = solve_plane_chan(cx, cy, sbPlane); -#endif -#if defined(DO_ATTRIBS) - ATTRIB_LOOP_BEGIN - GLfloat invQ = solve_plane_recip(cx, cy, vPlane[attr]); - array->attribs[attr][ix][0] = solve_plane(cx, cy, sPlane[attr]) * invQ; - array->attribs[attr][ix][1] = solve_plane(cx, cy, tPlane[attr]) * invQ; - array->attribs[attr][ix][2] = solve_plane(cx, cy, uPlane[attr]) * invQ; - if (attr < FRAG_ATTRIB_VAR0 && attr >= FRAG_ATTRIB_TEX0) { - const GLuint unit = attr - FRAG_ATTRIB_TEX0; - array->lambda[unit][ix] = compute_lambda(sPlane[attr], - tPlane[attr], - vPlane[attr], - cx, cy, invQ, - texWidth[attr], - texHeight[attr]); - } - ATTRIB_LOOP_END -#endif ix--; count++; coverage = compute_coveragef(pMin, pMax, pMid, ix, iy); } +#if defined(DO_ATTRIBS) + /* compute attributes at left-most fragment */ + span.attrStart[FRAG_ATTRIB_WPOS][3] = solve_plane(ix + 1.5, iy + 0.5, wPlane); + ATTRIB_LOOP_BEGIN + GLuint c; + for (c = 0; c < 4; c++) { + span.attrStart[attr][c] = solve_plane(ix + 1.5, iy + 0.5, attrPlane[attr][c]); + } + ATTRIB_LOOP_END +#endif + if (startX <= ix) continue; @@ -410,48 +345,22 @@ SWspanarrays *array = span.array; GLint j; for (j = 0; j < (GLint) n; j++) { + array->coverage[j] = array->coverage[j + left]; #ifdef DO_RGBA COPY_CHAN4(array->rgba[j], array->rgba[j + left]); #endif -#ifdef DO_SPEC - COPY_CHAN4(array->spec[j], array->spec[j + left]); -#endif #ifdef DO_INDEX array->index[j] = array->index[j + left]; #endif #ifdef DO_Z array->z[j] = array->z[j + left]; #endif -#ifdef DO_FOG - array->attribs[FRAG_ATTRIB_FOGC][j][0] - = array->attribs[FRAG_ATTRIB_FOGC][j + left][0]; -#endif -#if defined(DO_ATTRIBS) - array->lambda[0][j] = array->lambda[0][j + left]; -#endif - array->coverage[j] = array->coverage[j + left]; } } -#ifdef DO_ATTRIBS - /* shift texcoords, varying */ - { - SWspanarrays *array = span.array; - ATTRIB_LOOP_BEGIN - GLint j; - for (j = 0; j < (GLint) n; j++) { - array->attribs[attr][j][0] = array->attribs[attr][j + left][0]; - array->attribs[attr][j][1] = array->attribs[attr][j + left][1]; - array->attribs[attr][j][2] = array->attribs[attr][j + left][2]; - /*array->lambda[unit][j] = array->lambda[unit][j + left];*/ - } - ATTRIB_LOOP_END - } -#endif span.x = left; span.y = iy; span.end = n; - ASSERT(span.interpMask == 0); #if defined(DO_RGBA) _swrast_write_rgba_span(ctx, &span); #else @@ -462,30 +371,8 @@ } -#ifdef DO_Z #undef DO_Z -#endif - -#ifdef DO_FOG -#undef DO_FOG -#endif - -#ifdef DO_RGBA #undef DO_RGBA -#endif - -#ifdef DO_INDEX #undef DO_INDEX -#endif - -#ifdef DO_SPEC -#undef DO_SPEC -#endif - -#ifdef DO_ATTRIBS #undef DO_ATTRIBS -#endif - -#ifdef DO_OCCLUSION_TEST #undef DO_OCCLUSION_TEST -#endif |