-/* $Id: s_aatritemp.h,v 1.32 2003/01/20 00:25:17 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 5.1
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
* The following macros may be defined to indicate what auxillary information
* must be copmuted across the triangle:
* 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_TEX - if defined, compute unit 0 STRQ texcoords
- * DO_MULTITEX - if defined, compute all unit's STRQ texcoords
+ * DO_ATTRIBS - if defined, compute texcoords, varying, etc.
*/
-/*void triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv )*/
+/*void triangle( struct gl_context *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv )*/
{
- const GLfloat *p0 = v0->win;
- const GLfloat *p1 = v1->win;
- const GLfloat *p2 = v2->win;
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ const GLfloat *p0 = v0->attrib[VARYING_SLOT_POS];
+ const GLfloat *p1 = v1->attrib[VARYING_SLOT_POS];
+ const GLfloat *p2 = v2->attrib[VARYING_SLOT_POS];
const SWvertex *vMin, *vMid, *vMax;
GLint iyMin, iyMax;
GLfloat yMin, yMax;
GLboolean ltor;
GLfloat majDx, majDy; /* major (i.e. long) edge dx and dy */
- struct sw_span span;
+ SWspan span;
#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];
+#if defined(DO_ATTRIBS)
+ GLfloat attrPlane[VARYING_SLOT_MAX][4][4];
+ GLfloat wPlane[4]; /* win[3] */
#endif
-#ifdef DO_INDEX
- GLfloat iPlane[4];
-#endif
-#ifdef DO_SPEC
- GLfloat srPlane[4], sgPlane[4], sbPlane[4];
-#endif
-#ifdef DO_TEX
- GLfloat sPlane[4], tPlane[4], uPlane[4], vPlane[4];
- GLfloat texWidth, texHeight;
-#elif defined(DO_MULTITEX)
- GLfloat sPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture S */
- GLfloat tPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture T */
- GLfloat uPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture R */
- GLfloat vPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture Q */
- GLfloat texWidth[MAX_TEXTURE_COORD_UNITS];
- GLfloat texHeight[MAX_TEXTURE_COORD_UNITS];
-#endif
- GLfloat bf = SWRAST_CONTEXT(ctx)->_backface_sign;
-
+ GLfloat bf = SWRAST_CONTEXT(ctx)->_BackfaceCullSign;
- INIT_SPAN(span, GL_POLYGON, 0, 0, SPAN_COVERAGE);
+ (void) swrast;
+
+ INIT_SPAN(span, GL_POLYGON);
+ span.arrayMask = SPAN_COVERAGE;
/* 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[VARYING_SLOT_POS][1];
+ GLfloat y1 = v1->attrib[VARYING_SLOT_POS][1];
+ GLfloat y2 = v2->attrib[VARYING_SLOT_POS][1];
if (y0 <= y1) {
if (y1 <= y2) {
vMin = v0; vMid = v1; vMax = v2; /* y0<=y1<=y2 */
}
}
- majDx = vMax->win[0] - vMin->win[0];
- majDy = vMax->win[1] - vMin->win[1];
+ majDx = vMax->attrib[VARYING_SLOT_POS][0] - vMin->attrib[VARYING_SLOT_POS][0];
+ majDy = vMax->attrib[VARYING_SLOT_POS][1] - vMin->attrib[VARYING_SLOT_POS][1];
+ /* front/back-face determination and cullling */
{
- const GLfloat botDx = vMid->win[0] - vMin->win[0];
- const GLfloat botDy = vMid->win[1] - vMin->win[1];
+ const GLfloat botDx = vMid->attrib[VARYING_SLOT_POS][0] - vMin->attrib[VARYING_SLOT_POS][0];
+ const GLfloat botDy = vMid->attrib[VARYING_SLOT_POS][1] - vMin->attrib[VARYING_SLOT_POS][1];
const GLfloat area = majDx * botDy - botDx * majDy;
- ltor = (GLboolean) (area < 0.0F);
/* Do backface culling */
if (area * bf < 0 || area == 0 || IS_INF_OR_NAN(area))
return;
- }
+ ltor = (GLboolean) (area < 0.0F);
-#ifndef DO_OCCLUSION_TEST
- ctx->OcclusionResult = GL_TRUE;
-#endif
+ span.facing = area * swrast->_BackfaceSign > 0.0F;
+ }
/* Plane equation setup:
* We evaluate plane equations at window (x,y) coordinates in order
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->fog, v1->fog, v2->fog, 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);
compute_plane(p0, p1, p2, v0->color[GCOMP], v1->color[GCOMP], v2->color[GCOMP], gPlane);
constant_plane(v2->color[ACOMP], aPlane);
}
span.arrayMask |= SPAN_RGBA;
-#endif
-#ifdef DO_INDEX
- if (ctx->Light.ShadeModel == GL_SMOOTH) {
- compute_plane(p0, p1, p2, (GLfloat) v0->index,
- (GLfloat) v1->index, (GLfloat) v2->index, iPlane);
- }
- else {
- constant_plane((GLfloat) v2->index, 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
-#ifdef DO_TEX
+#if defined(DO_ATTRIBS)
{
- const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current;
- const struct gl_texture_image *texImage = obj->Image[obj->BaseLevel];
- const GLfloat invW0 = v0->win[3];
- const GLfloat invW1 = v1->win[3];
- const GLfloat invW2 = v2->win[3];
- const GLfloat s0 = v0->texcoord[0][0] * invW0;
- const GLfloat s1 = v1->texcoord[0][0] * invW1;
- const GLfloat s2 = v2->texcoord[0][0] * invW2;
- const GLfloat t0 = v0->texcoord[0][1] * invW0;
- const GLfloat t1 = v1->texcoord[0][1] * invW1;
- const GLfloat t2 = v2->texcoord[0][1] * invW2;
- const GLfloat r0 = v0->texcoord[0][2] * invW0;
- const GLfloat r1 = v1->texcoord[0][2] * invW1;
- const GLfloat r2 = v2->texcoord[0][2] * invW2;
- const GLfloat q0 = v0->texcoord[0][3] * invW0;
- const GLfloat q1 = v1->texcoord[0][3] * invW1;
- const GLfloat q2 = v2->texcoord[0][3] * invW2;
- compute_plane(p0, p1, p2, s0, s1, s2, sPlane);
- compute_plane(p0, p1, p2, t0, t1, t2, tPlane);
- compute_plane(p0, p1, p2, r0, r1, r2, uPlane);
- compute_plane(p0, p1, p2, q0, q1, q2, vPlane);
- texWidth = (GLfloat) texImage->Width;
- texHeight = (GLfloat) texImage->Height;
- }
- span.arrayMask |= (SPAN_TEXTURE | SPAN_LAMBDA);
-#elif defined(DO_MULTITEX)
- {
- GLuint u;
- for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
- if (ctx->Texture.Unit[u]._ReallyEnabled) {
- const struct gl_texture_object *obj = ctx->Texture.Unit[u]._Current;
- const struct gl_texture_image *texImage = obj->Image[obj->BaseLevel];
- const GLfloat invW0 = v0->win[3];
- const GLfloat invW1 = v1->win[3];
- const GLfloat invW2 = v2->win[3];
- const GLfloat s0 = v0->texcoord[u][0] * invW0;
- const GLfloat s1 = v1->texcoord[u][0] * invW1;
- const GLfloat s2 = v2->texcoord[u][0] * invW2;
- const GLfloat t0 = v0->texcoord[u][1] * invW0;
- const GLfloat t1 = v1->texcoord[u][1] * invW1;
- const GLfloat t2 = v2->texcoord[u][1] * invW2;
- const GLfloat r0 = v0->texcoord[u][2] * invW0;
- const GLfloat r1 = v1->texcoord[u][2] * invW1;
- const GLfloat r2 = v2->texcoord[u][2] * invW2;
- const GLfloat q0 = v0->texcoord[u][3] * invW0;
- const GLfloat q1 = v1->texcoord[u][3] * invW1;
- const GLfloat q2 = v2->texcoord[u][3] * invW2;
- compute_plane(p0, p1, p2, s0, s1, s2, sPlane[u]);
- compute_plane(p0, p1, p2, t0, t1, t2, tPlane[u]);
- compute_plane(p0, p1, p2, r0, r1, r2, uPlane[u]);
- compute_plane(p0, p1, p2, q0, q1, q2, vPlane[u]);
- texWidth[u] = (GLfloat) texImage->Width;
- texHeight[u] = (GLfloat) texImage->Height;
+ const GLfloat invW0 = v0->attrib[VARYING_SLOT_POS][3];
+ const GLfloat invW1 = v1->attrib[VARYING_SLOT_POS][3];
+ const GLfloat invW2 = v2->attrib[VARYING_SLOT_POS][3];
+ compute_plane(p0, p1, p2, invW0, invW1, invW2, wPlane);
+ span.attrStepX[VARYING_SLOT_POS][3] = plane_dx(wPlane);
+ span.attrStepY[VARYING_SLOT_POS][3] = plane_dy(wPlane);
+ ATTRIB_LOOP_BEGIN
+ 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 {
+ 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);
#endif
/* Begin bottom-to-top scan over the triangle.
* 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[VARYING_SLOT_POS][1];
+ yMax = vMax->attrib[VARYING_SLOT_POS][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[VARYING_SLOT_POS];
+ const GLfloat *pMid = vMid->attrib[VARYING_SLOT_POS];
+ const GLfloat *pMax = vMax->attrib[VARYING_SLOT_POS];
const GLfloat dxdy = majDx / majDy;
const GLfloat xAdj = dxdy < 0.0F ? -dxdy : 0.0F;
- GLfloat x = pMin[0] - (yMin - iyMin) * dxdy;
GLint iy;
- for (iy = iyMin; iy < iyMax; iy++, x += dxdy) {
+#ifdef _OPENMP
+#pragma omp parallel for schedule(dynamic) private(iy) firstprivate(span)
+#endif
+ for (iy = iyMin; iy < iyMax; iy++) {
+ GLfloat x = pMin[0] - (yMin - iy) * dxdy;
GLint ix, startX = (GLint) (x - xAdj);
GLuint count;
GLfloat coverage = 0.0F;
+#ifdef _OPENMP
+ /* each thread needs to use a different (global) SpanArrays variable */
+ span.array = SWRAST_CONTEXT(ctx)->SpanArrays + omp_get_thread_num();
+#endif
/* skip over fragments with zero coverage */
- while (startX < MAX_WIDTH) {
+ while (startX < SWRAST_MAX_WIDTH) {
coverage = compute_coveragef(pMin, pMid, pMax, startX, iy);
if (coverage > 0.0F)
break;
/* enter interior of triangle */
ix = startX;
+
+#if defined(DO_ATTRIBS)
+ /* compute attributes at left-most fragment */
+ span.attrStart[VARYING_SLOT_POS][3] = solve_plane(ix + 0.5F, iy + 0.5F, wPlane);
+ ATTRIB_LOOP_BEGIN
+ GLuint c;
+ for (c = 0; c < 4; c++) {
+ span.attrStart[attr][c] = solve_plane(ix + 0.5F, iy + 0.5F, attrPlane[attr][c]);
+ }
+ ATTRIB_LOOP_END
+#endif
+
count = 0;
while (coverage > 0.0F) {
/* (cx,cy) = center of fragment */
const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
- struct span_arrays *array = span.array;
-#ifdef DO_INDEX
- array->coverage[count] = (GLfloat) compute_coveragei(pMin, pMid, pMax, ix, iy);
-#else
+ SWspanarrays *array = span.array;
array->coverage[count] = coverage;
-#endif
#ifdef DO_Z
- array->z[count] = (GLdepth) solve_plane(cx, cy, zPlane);
-#endif
-#ifdef DO_FOG
- array->fog[count] = solve_plane(cx, cy, fogPlane);
+ array->z[count] = (GLuint) solve_plane(cx, cy, zPlane);
#endif
-#ifdef DO_RGBA
array->rgba[count][RCOMP] = solve_plane_chan(cx, cy, rPlane);
array->rgba[count][GCOMP] = solve_plane_chan(cx, cy, gPlane);
array->rgba[count][BCOMP] = solve_plane_chan(cx, cy, bPlane);
array->rgba[count][ACOMP] = solve_plane_chan(cx, cy, aPlane);
-#endif
-#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
-#ifdef DO_TEX
- {
- const GLfloat invQ = solve_plane_recip(cx, cy, vPlane);
- array->texcoords[0][count][0] = solve_plane(cx, cy, sPlane) * invQ;
- array->texcoords[0][count][1] = solve_plane(cx, cy, tPlane) * invQ;
- array->texcoords[0][count][2] = solve_plane(cx, cy, uPlane) * invQ;
- array->lambda[0][count] = compute_lambda(sPlane, tPlane, vPlane,
- cx, cy, invQ,
- texWidth, texHeight);
- }
-#elif defined(DO_MULTITEX)
- {
- GLuint unit;
- for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
- if (ctx->Texture.Unit[unit]._ReallyEnabled) {
- GLfloat invQ = solve_plane_recip(cx, cy, vPlane[unit]);
- array->texcoords[unit][count][0] = solve_plane(cx, cy, sPlane[unit]) * invQ;
- array->texcoords[unit][count][1] = solve_plane(cx, cy, tPlane[unit]) * invQ;
- array->texcoords[unit][count][2] = solve_plane(cx, cy, uPlane[unit]) * invQ;
- array->lambda[unit][count] = compute_lambda(sPlane[unit],
- tPlane[unit], vPlane[unit], cx, cy, invQ,
- texWidth[unit], texHeight[unit]);
- }
- }
- }
-#endif
ix++;
count++;
coverage = compute_coveragef(pMin, pMid, pMax, ix, iy);
}
- if (ix <= startX)
- continue;
-
- span.x = startX;
- span.y = iy;
- span.end = (GLuint) ix - (GLuint) startX;
- ASSERT(span.interpMask == 0);
-#if defined(DO_MULTITEX) || defined(DO_TEX)
- _mesa_write_texture_span(ctx, &span);
-#elif defined(DO_RGBA)
- _mesa_write_rgba_span(ctx, &span);
-#elif defined(DO_INDEX)
- _mesa_write_index_span(ctx, &span);
-#endif
+ if (ix > startX) {
+ span.x = startX;
+ span.y = iy;
+ span.end = (GLuint) ix - (GLuint) startX;
+ _swrast_write_rgba_span(ctx, &span);
+ }
}
}
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[VARYING_SLOT_POS];
+ const GLfloat *pMid = vMid->attrib[VARYING_SLOT_POS];
+ const GLfloat *pMax = vMax->attrib[VARYING_SLOT_POS];
const GLfloat dxdy = majDx / majDy;
const GLfloat xAdj = dxdy > 0 ? dxdy : 0.0F;
- GLfloat x = pMin[0] - (yMin - iyMin) * dxdy;
GLint iy;
- for (iy = iyMin; iy < iyMax; iy++, x += dxdy) {
+#ifdef _OPENMP
+#pragma omp parallel for schedule(dynamic) private(iy) firstprivate(span)
+#endif
+ for (iy = iyMin; iy < iyMax; iy++) {
+ GLfloat x = pMin[0] - (yMin - iy) * dxdy;
GLint ix, left, startX = (GLint) (x + xAdj);
GLuint count, n;
GLfloat coverage = 0.0F;
+#ifdef _OPENMP
+ /* each thread needs to use a different (global) SpanArrays variable */
+ span.array = SWRAST_CONTEXT(ctx)->SpanArrays + omp_get_thread_num();
+#endif
/* make sure we're not past the window edge */
if (startX >= ctx->DrawBuffer->_Xmax) {
startX = ctx->DrawBuffer->_Xmax - 1;
}
/* skip fragments with zero coverage */
- while (startX >= 0) {
+ while (startX > 0) {
coverage = compute_coveragef(pMin, pMax, pMid, startX, iy);
if (coverage > 0.0F)
break;
while (coverage > 0.0F) {
/* (cx,cy) = center of fragment */
const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
- struct span_arrays *array = span.array;
-#ifdef DO_INDEX
- array->coverage[ix] = (GLfloat) compute_coveragei(pMin, pMax, pMid, ix, iy);
-#else
+ SWspanarrays *array = span.array;
+ assert(ix >= 0);
array->coverage[ix] = coverage;
-#endif
#ifdef DO_Z
- array->z[ix] = (GLdepth) solve_plane(cx, cy, zPlane);
+ array->z[ix] = (GLuint) solve_plane(cx, cy, zPlane);
#endif
-#ifdef DO_FOG
- array->fog[ix] = 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);
array->rgba[ix][BCOMP] = solve_plane_chan(cx, cy, bPlane);
array->rgba[ix][ACOMP] = solve_plane_chan(cx, cy, aPlane);
-#endif
-#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
-#ifdef DO_TEX
- {
- const GLfloat invQ = solve_plane_recip(cx, cy, vPlane);
- array->texcoords[0][ix][0] = solve_plane(cx, cy, sPlane) * invQ;
- array->texcoords[0][ix][1] = solve_plane(cx, cy, tPlane) * invQ;
- array->texcoords[0][ix][2] = solve_plane(cx, cy, uPlane) * invQ;
- array->lambda[0][ix] = compute_lambda(sPlane, tPlane, vPlane,
- cx, cy, invQ, texWidth, texHeight);
- }
-#elif defined(DO_MULTITEX)
- {
- GLuint unit;
- for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
- if (ctx->Texture.Unit[unit]._ReallyEnabled) {
- GLfloat invQ = solve_plane_recip(cx, cy, vPlane[unit]);
- array->texcoords[unit][ix][0] = solve_plane(cx, cy, sPlane[unit]) * invQ;
- array->texcoords[unit][ix][1] = solve_plane(cx, cy, tPlane[unit]) * invQ;
- array->texcoords[unit][ix][2] = solve_plane(cx, cy, uPlane[unit]) * invQ;
- array->lambda[unit][ix] = compute_lambda(sPlane[unit],
- tPlane[unit],
- vPlane[unit],
- cx, cy, invQ,
- texWidth[unit],
- texHeight[unit]);
- }
- }
- }
-#endif
ix--;
count++;
coverage = compute_coveragef(pMin, pMax, pMid, ix, iy);
}
- if (startX <= ix)
- continue;
+#if defined(DO_ATTRIBS)
+ /* compute attributes at left-most fragment */
+ span.attrStart[VARYING_SLOT_POS][3] = solve_plane(ix + 1.5F, iy + 0.5F, wPlane);
+ ATTRIB_LOOP_BEGIN
+ GLuint c;
+ for (c = 0; c < 4; c++) {
+ span.attrStart[attr][c] = solve_plane(ix + 1.5F, iy + 0.5F, attrPlane[attr][c]);
+ }
+ ATTRIB_LOOP_END
+#endif
- n = (GLuint) startX - (GLuint) ix;
+ if (startX > ix) {
+ n = (GLuint) startX - (GLuint) ix;
- left = ix + 1;
+ left = ix + 1;
- /* shift all values to the left */
- /* XXX this is temporary */
- {
- struct span_arrays *array = span.array;
- GLint j;
- for (j = 0; j < (GLint) n; j++) {
-#ifdef DO_RGBA
- COPY_4V(array->rgba[j], array->rgba[j + left]);
-#endif
-#ifdef DO_SPEC
- COPY_4V(array->spec[j], array->spec[j + left]);
-#endif
-#ifdef DO_INDEX
- array->index[j] = array->index[j + left];
-#endif
+ /* shift all values to the left */
+ /* XXX this is temporary */
+ {
+ SWspanarrays *array = span.array;
+ GLint j;
+ for (j = 0; j < (GLint) n; j++) {
+ array->coverage[j] = array->coverage[j + left];
+ COPY_CHAN4(array->rgba[j], array->rgba[j + left]);
#ifdef DO_Z
- array->z[j] = array->z[j + left];
-#endif
-#ifdef DO_FOG
- array->fog[j] = array->fog[j + left];
-#endif
-#ifdef DO_TEX
- COPY_4V(array->texcoords[0][j], array->texcoords[0][j + left]);
+ array->z[j] = array->z[j + left];
#endif
-#if defined(DO_MULTITEX) || defined(DO_TEX)
- array->lambda[0][j] = array->lambda[0][j + left];
-#endif
- array->coverage[j] = array->coverage[j + left];
- }
- }
-#ifdef DO_MULTITEX
- /* shift texcoords */
- {
- struct span_arrays *array = span.array;
- GLuint unit;
- for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
- if (ctx->Texture.Unit[unit]._ReallyEnabled) {
- GLint j;
- for (j = 0; j < (GLint) n; j++) {
- array->texcoords[unit][j][0] = array->texcoords[unit][j + left][0];
- array->texcoords[unit][j][1] = array->texcoords[unit][j + left][1];
- array->texcoords[unit][j][2] = array->texcoords[unit][j + left][2];
- array->lambda[unit][j] = array->lambda[unit][j + left];
- }
}
}
- }
-#endif
- span.x = left;
- span.y = iy;
- span.end = n;
- ASSERT(span.interpMask == 0);
-#if defined(DO_MULTITEX) || defined(DO_TEX)
- _mesa_write_texture_span(ctx, &span);
-#elif defined(DO_RGBA)
- _mesa_write_rgba_span(ctx, &span);
-#elif defined(DO_INDEX)
- _mesa_write_index_span(ctx, &span);
-#endif
+ span.x = left;
+ span.y = iy;
+ span.end = n;
+ _swrast_write_rgba_span(ctx, &span);
+ }
}
}
}
-#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_TEX
-#undef DO_TEX
-#endif
-
-#ifdef DO_MULTITEX
-#undef DO_MULTITEX
-#endif
-
-#ifdef DO_OCCLUSION_TEST
+#undef DO_ATTRIBS
#undef DO_OCCLUSION_TEST
-#endif
projects / mesa.git / blobdiff