* 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_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 SWcontext *swrast = SWRAST_CONTEXT(ctx);
const GLfloat *p0 = v0->attrib[FRAG_ATTRIB_WPOS];
#ifdef DO_Z
GLfloat zPlane[4];
#endif
-#ifdef DO_RGBA
GLfloat rPlane[4], gPlane[4], bPlane[4], aPlane[4];
-#endif
-#ifdef DO_INDEX
- GLfloat iPlane[4];
-#endif
#if defined(DO_ATTRIBS)
GLfloat attrPlane[FRAG_ATTRIB_MAX][4][4];
GLfloat wPlane[4]; /* win[3] */
compute_plane(p0, p1, p2, p0[2], p1[2], p2[2], zPlane);
span.arrayMask |= SPAN_Z;
#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->attrib[FRAG_ATTRIB_CI][0],
- v1->attrib[FRAG_ATTRIB_CI][0], v2->attrib[FRAG_ATTRIB_CI][0], iPlane);
- }
- else {
- constant_plane(v2->attrib[FRAG_ATTRIB_CI][0], iPlane);
- }
- span.arrayMask |= SPAN_INDEX;
-#endif
#if defined(DO_ATTRIBS)
{
const GLfloat invW0 = v0->attrib[FRAG_ATTRIB_WPOS][3];
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;
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;
#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);
+ span.attrStart[FRAG_ATTRIB_WPOS][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 + 0.5, iy + 0.5, attrPlane[attr][c]);
+ span.attrStart[attr][c] = solve_plane(ix + 0.5F, iy + 0.5F, attrPlane[attr][c]);
}
ATTRIB_LOOP_END
#endif
/* (cx,cy) = center of fragment */
const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
SWspanarrays *array = span.array;
-#ifdef DO_INDEX
- array->coverage[count] = (GLfloat) compute_coveragei(pMin, pMid, pMax, ix, iy);
-#else
array->coverage[count] = coverage;
-#endif
#ifdef DO_Z
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
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;
-#if defined(DO_RGBA)
- _swrast_write_rgba_span(ctx, &span);
-#else
- _swrast_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 {
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;
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;
const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
SWspanarrays *array = span.array;
ASSERT(ix >= 0);
-#ifdef DO_INDEX
- array->coverage[ix] = (GLfloat) compute_coveragei(pMin, pMax, pMid, ix, iy);
-#else
array->coverage[ix] = coverage;
-#endif
#ifdef DO_Z
array->z[ix] = (GLuint) solve_plane(cx, cy, zPlane);
#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
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);
+ span.attrStart[FRAG_ATTRIB_WPOS][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 + 1.5, iy + 0.5, attrPlane[attr][c]);
+ span.attrStart[attr][c] = solve_plane(ix + 1.5F, iy + 0.5F, attrPlane[attr][c]);
}
ATTRIB_LOOP_END
#endif
- if (startX <= ix)
- continue;
+ if (startX > ix) {
+ n = (GLuint) startX - (GLuint) ix;
- n = (GLuint) startX - (GLuint) ix;
+ left = ix + 1;
- left = ix + 1;
-
- /* 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];
-#ifdef DO_RGBA
- COPY_CHAN4(array->rgba[j], array->rgba[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];
+ array->z[j] = array->z[j + left];
#endif
+ }
}
- }
- span.x = left;
- span.y = iy;
- span.end = n;
-#if defined(DO_RGBA)
- _swrast_write_rgba_span(ctx, &span);
-#else
- _swrast_write_index_span(ctx, &span);
-#endif
+ span.x = left;
+ span.y = iy;
+ span.end = n;
+ _swrast_write_rgba_span(ctx, &span);
+ }
}
}
}
#undef DO_Z
-#undef DO_RGBA
-#undef DO_INDEX
#undef DO_ATTRIBS
#undef DO_OCCLUSION_TEST
projects / mesa.git / blobdiff