/*
* Mesa 3-D graphics library
- * Version: 7.0
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* 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.
*/
/*
* INTERP_Z - if defined, interpolate integer Z values
* INTERP_RGB - if defined, interpolate integer RGB values
* INTERP_ALPHA - if defined, interpolate integer Alpha values
- * INTERP_INDEX - if defined, interpolate color index values
* INTERP_INT_TEX - if defined, interpolate integer ST texcoords
* (fast, simple 2-D texture mapping, without
* perspective correction)
* SUB_PIXEL_BITS.
*/
+#include "util/u_math.h"
+
+#ifndef MAX_GLUINT
+#define MAX_GLUINT 0xffffffffu
+#endif
+
/*
* Some code we unfortunately need to prevent negative interpolated colors.
#endif
-static void NAME(GLcontext *ctx, const SWvertex *v0,
+static void NAME(struct gl_context *ctx, const SWvertex *v0,
const SWvertex *v1,
const SWvertex *v2 )
{
(void) swrast;
- INIT_SPAN(span, GL_POLYGON, 0, 0, 0);
+ INIT_SPAN(span, GL_POLYGON);
span.y = 0; /* silence warnings */
#ifdef INTERP_Z
#endif
/*
- printf("%s()\n", __FUNCTION__);
+ printf("%s()\n", __func__);
printf(" %g, %g, %g\n",
- v0->attrib[FRAG_ATTRIB_WPOS][0],
- v0->attrib[FRAG_ATTRIB_WPOS][1],
- v0->attrib[FRAG_ATTRIB_WPOS][2]);
+ v0->attrib[VARYING_SLOT_POS][0],
+ v0->attrib[VARYING_SLOT_POS][1],
+ v0->attrib[VARYING_SLOT_POS][2]);
printf(" %g, %g, %g\n",
- v1->attrib[FRAG_ATTRIB_WPOS][0],
- v1->attrib[FRAG_ATTRIB_WPOS][1],
- v1->attrib[FRAG_ATTRIB_WPOS][2]);
+ v1->attrib[VARYING_SLOT_POS][0],
+ v1->attrib[VARYING_SLOT_POS][1],
+ v1->attrib[VARYING_SLOT_POS][2]);
printf(" %g, %g, %g\n",
- v2->attrib[FRAG_ATTRIB_WPOS][0],
- v2->attrib[FRAG_ATTRIB_WPOS][1],
- v2->attrib[FRAG_ATTRIB_WPOS][2]);
+ v2->attrib[VARYING_SLOT_POS][0],
+ v2->attrib[VARYING_SLOT_POS][1],
+ v2->attrib[VARYING_SLOT_POS][2]);
*/
/* Compute fixed point x,y coords w/ half-pixel offsets and snapping.
* And find the order of the 3 vertices along the Y axis.
*/
{
- const GLfixed fy0 = FloatToFixed(v0->attrib[FRAG_ATTRIB_WPOS][1] - 0.5F) & snapMask;
- const GLfixed fy1 = FloatToFixed(v1->attrib[FRAG_ATTRIB_WPOS][1] - 0.5F) & snapMask;
- const GLfixed fy2 = FloatToFixed(v2->attrib[FRAG_ATTRIB_WPOS][1] - 0.5F) & snapMask;
+ const GLfixed fy0 = FloatToFixed(v0->attrib[VARYING_SLOT_POS][1] - 0.5F) & snapMask;
+ const GLfixed fy1 = FloatToFixed(v1->attrib[VARYING_SLOT_POS][1] - 0.5F) & snapMask;
+ const GLfixed fy2 = FloatToFixed(v2->attrib[VARYING_SLOT_POS][1] - 0.5F) & snapMask;
if (fy0 <= fy1) {
if (fy1 <= fy2) {
/* y0 <= y1 <= y2 */
}
/* fixed point X coords */
- vMin_fx = FloatToFixed(vMin->attrib[FRAG_ATTRIB_WPOS][0] + 0.5F) & snapMask;
- vMid_fx = FloatToFixed(vMid->attrib[FRAG_ATTRIB_WPOS][0] + 0.5F) & snapMask;
- vMax_fx = FloatToFixed(vMax->attrib[FRAG_ATTRIB_WPOS][0] + 0.5F) & snapMask;
+ vMin_fx = FloatToFixed(vMin->attrib[VARYING_SLOT_POS][0] + 0.5F) & snapMask;
+ vMid_fx = FloatToFixed(vMid->attrib[VARYING_SLOT_POS][0] + 0.5F) & snapMask;
+ vMax_fx = FloatToFixed(vMax->attrib[VARYING_SLOT_POS][0] + 0.5F) & snapMask;
}
/* vertex/edge relationship */
/* compute area, oneOverArea and perform backface culling */
{
const GLfloat area = eMaj.dx * eBot.dy - eBot.dx * eMaj.dy;
- /* Do backface culling */
- if (area * bf < 0.0)
+
+ if (util_is_inf_or_nan(area) || area == 0.0F)
return;
- if (IS_INF_OR_NAN(area) || area == 0.0F)
+ if (area * bf * swrast->_BackfaceCullSign < 0.0F)
return;
oneOverArea = 1.0F / area;
- }
-
- span.facing = ctx->_Facing; /* for 2-sided stencil test */
+ /* 0 = front, 1 = back */
+ span.facing = oneOverArea * bf > 0.0F;
+ }
/* Edge setup. For a triangle strip these could be reused... */
{
{
GLint scan_from_left_to_right; /* true if scanning left-to-right */
-#ifdef INTERP_INDEX
- GLfloat didx, didy;
-#endif
/*
* Execute user-supplied setup code
#ifdef INTERP_Z
span.interpMask |= SPAN_Z;
{
- GLfloat eMaj_dz = vMax->attrib[FRAG_ATTRIB_WPOS][2] - vMin->attrib[FRAG_ATTRIB_WPOS][2];
- GLfloat eBot_dz = vMid->attrib[FRAG_ATTRIB_WPOS][2] - vMin->attrib[FRAG_ATTRIB_WPOS][2];
- span.attrStepX[FRAG_ATTRIB_WPOS][2] = oneOverArea * (eMaj_dz * eBot.dy - eMaj.dy * eBot_dz);
- if (span.attrStepX[FRAG_ATTRIB_WPOS][2] > maxDepth ||
- span.attrStepX[FRAG_ATTRIB_WPOS][2] < -maxDepth) {
+ GLfloat eMaj_dz = vMax->attrib[VARYING_SLOT_POS][2] - vMin->attrib[VARYING_SLOT_POS][2];
+ GLfloat eBot_dz = vMid->attrib[VARYING_SLOT_POS][2] - vMin->attrib[VARYING_SLOT_POS][2];
+ span.attrStepX[VARYING_SLOT_POS][2] = oneOverArea * (eMaj_dz * eBot.dy - eMaj.dy * eBot_dz);
+ if (span.attrStepX[VARYING_SLOT_POS][2] > maxDepth ||
+ span.attrStepX[VARYING_SLOT_POS][2] < -maxDepth) {
/* probably a sliver triangle */
- span.attrStepX[FRAG_ATTRIB_WPOS][2] = 0.0;
- span.attrStepY[FRAG_ATTRIB_WPOS][2] = 0.0;
+ span.attrStepX[VARYING_SLOT_POS][2] = 0.0;
+ span.attrStepY[VARYING_SLOT_POS][2] = 0.0;
}
else {
- span.attrStepY[FRAG_ATTRIB_WPOS][2] = oneOverArea * (eMaj.dx * eBot_dz - eMaj_dz * eBot.dx);
+ span.attrStepY[VARYING_SLOT_POS][2] = oneOverArea * (eMaj.dx * eBot_dz - eMaj_dz * eBot.dx);
}
if (depthBits <= 16)
- span.zStep = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_WPOS][2]);
+ span.zStep = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_POS][2]);
else
- span.zStep = (GLint) span.attrStepX[FRAG_ATTRIB_WPOS][2];
+ span.zStep = (GLint) span.attrStepX[VARYING_SLOT_POS][2];
}
#endif
#ifdef INTERP_RGB
GLfloat eMaj_da = (GLfloat) (vMax->color[ACOMP] - vMin->color[ACOMP]);
GLfloat eBot_da = (GLfloat) (vMid->color[ACOMP] - vMin->color[ACOMP]);
# endif
- span.attrStepX[FRAG_ATTRIB_COL0][0] = oneOverArea * (eMaj_dr * eBot.dy - eMaj.dy * eBot_dr);
- span.attrStepY[FRAG_ATTRIB_COL0][0] = oneOverArea * (eMaj.dx * eBot_dr - eMaj_dr * eBot.dx);
- span.attrStepX[FRAG_ATTRIB_COL0][1] = oneOverArea * (eMaj_dg * eBot.dy - eMaj.dy * eBot_dg);
- span.attrStepY[FRAG_ATTRIB_COL0][1] = oneOverArea * (eMaj.dx * eBot_dg - eMaj_dg * eBot.dx);
- span.attrStepX[FRAG_ATTRIB_COL0][2] = oneOverArea * (eMaj_db * eBot.dy - eMaj.dy * eBot_db);
- span.attrStepY[FRAG_ATTRIB_COL0][2] = oneOverArea * (eMaj.dx * eBot_db - eMaj_db * eBot.dx);
- span.redStep = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_COL0][0]);
- span.greenStep = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_COL0][1]);
- span.blueStep = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_COL0][2]);
+ span.attrStepX[VARYING_SLOT_COL0][0] = oneOverArea * (eMaj_dr * eBot.dy - eMaj.dy * eBot_dr);
+ span.attrStepY[VARYING_SLOT_COL0][0] = oneOverArea * (eMaj.dx * eBot_dr - eMaj_dr * eBot.dx);
+ span.attrStepX[VARYING_SLOT_COL0][1] = oneOverArea * (eMaj_dg * eBot.dy - eMaj.dy * eBot_dg);
+ span.attrStepY[VARYING_SLOT_COL0][1] = oneOverArea * (eMaj.dx * eBot_dg - eMaj_dg * eBot.dx);
+ span.attrStepX[VARYING_SLOT_COL0][2] = oneOverArea * (eMaj_db * eBot.dy - eMaj.dy * eBot_db);
+ span.attrStepY[VARYING_SLOT_COL0][2] = oneOverArea * (eMaj.dx * eBot_db - eMaj_db * eBot.dx);
+ span.redStep = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_COL0][0]);
+ span.greenStep = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_COL0][1]);
+ span.blueStep = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_COL0][2]);
# ifdef INTERP_ALPHA
- span.attrStepX[FRAG_ATTRIB_COL0][3] = oneOverArea * (eMaj_da * eBot.dy - eMaj.dy * eBot_da);
- span.attrStepY[FRAG_ATTRIB_COL0][3] = oneOverArea * (eMaj.dx * eBot_da - eMaj_da * eBot.dx);
- span.alphaStep = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_COL0][3]);
+ span.attrStepX[VARYING_SLOT_COL0][3] = oneOverArea * (eMaj_da * eBot.dy - eMaj.dy * eBot_da);
+ span.attrStepY[VARYING_SLOT_COL0][3] = oneOverArea * (eMaj.dx * eBot_da - eMaj_da * eBot.dx);
+ span.alphaStep = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_COL0][3]);
# endif /* INTERP_ALPHA */
}
else {
- ASSERT(ctx->Light.ShadeModel == GL_FLAT);
+ assert(ctx->Light.ShadeModel == GL_FLAT);
span.interpMask |= SPAN_FLAT;
- span.attrStepX[FRAG_ATTRIB_COL0][0] = span.attrStepY[FRAG_ATTRIB_COL0][0] = 0.0F;
- span.attrStepX[FRAG_ATTRIB_COL0][1] = span.attrStepY[FRAG_ATTRIB_COL0][1] = 0.0F;
- span.attrStepX[FRAG_ATTRIB_COL0][2] = span.attrStepY[FRAG_ATTRIB_COL0][2] = 0.0F;
+ span.attrStepX[VARYING_SLOT_COL0][0] = span.attrStepY[VARYING_SLOT_COL0][0] = 0.0F;
+ span.attrStepX[VARYING_SLOT_COL0][1] = span.attrStepY[VARYING_SLOT_COL0][1] = 0.0F;
+ span.attrStepX[VARYING_SLOT_COL0][2] = span.attrStepY[VARYING_SLOT_COL0][2] = 0.0F;
span.redStep = 0;
span.greenStep = 0;
span.blueStep = 0;
# ifdef INTERP_ALPHA
- span.attrStepX[FRAG_ATTRIB_COL0][3] = span.attrStepX[FRAG_ATTRIB_COL0][3] = 0.0F;
+ span.attrStepX[VARYING_SLOT_COL0][3] = span.attrStepY[VARYING_SLOT_COL0][3] = 0.0F;
span.alphaStep = 0;
# endif
}
#endif /* INTERP_RGB */
-#ifdef INTERP_INDEX
- span.interpMask |= SPAN_INDEX;
- if (ctx->Light.ShadeModel == GL_SMOOTH) {
- GLfloat eMaj_di = vMax->attrib[FRAG_ATTRIB_CI][0] - vMin->attrib[FRAG_ATTRIB_CI][0];
- GLfloat eBot_di = vMid->attrib[FRAG_ATTRIB_CI][0] - vMin->attrib[FRAG_ATTRIB_CI][0];
- didx = oneOverArea * (eMaj_di * eBot.dy - eMaj.dy * eBot_di);
- didy = oneOverArea * (eMaj.dx * eBot_di - eMaj_di * eBot.dx);
- span.indexStep = SignedFloatToFixed(didx);
- }
- else {
- span.interpMask |= SPAN_FLAT;
- didx = didy = 0.0F;
- span.indexStep = 0;
- }
-#endif
#ifdef INTERP_INT_TEX
{
- GLfloat eMaj_ds = (vMax->attrib[FRAG_ATTRIB_TEX0][0] - vMin->attrib[FRAG_ATTRIB_TEX0][0]) * S_SCALE;
- GLfloat eBot_ds = (vMid->attrib[FRAG_ATTRIB_TEX0][0] - vMin->attrib[FRAG_ATTRIB_TEX0][0]) * S_SCALE;
- GLfloat eMaj_dt = (vMax->attrib[FRAG_ATTRIB_TEX0][1] - vMin->attrib[FRAG_ATTRIB_TEX0][1]) * T_SCALE;
- GLfloat eBot_dt = (vMid->attrib[FRAG_ATTRIB_TEX0][1] - vMin->attrib[FRAG_ATTRIB_TEX0][1]) * T_SCALE;
- span.attrStepX[FRAG_ATTRIB_TEX0][0] = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
- span.attrStepY[FRAG_ATTRIB_TEX0][0] = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx);
- span.attrStepX[FRAG_ATTRIB_TEX0][1] = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt);
- span.attrStepY[FRAG_ATTRIB_TEX0][1] = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx);
- span.intTexStep[0] = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_TEX0][0]);
- span.intTexStep[1] = SignedFloatToFixed(span.attrStepX[FRAG_ATTRIB_TEX0][1]);
+ GLfloat eMaj_ds = (vMax->attrib[VARYING_SLOT_TEX0][0] - vMin->attrib[VARYING_SLOT_TEX0][0]) * S_SCALE;
+ GLfloat eBot_ds = (vMid->attrib[VARYING_SLOT_TEX0][0] - vMin->attrib[VARYING_SLOT_TEX0][0]) * S_SCALE;
+ GLfloat eMaj_dt = (vMax->attrib[VARYING_SLOT_TEX0][1] - vMin->attrib[VARYING_SLOT_TEX0][1]) * T_SCALE;
+ GLfloat eBot_dt = (vMid->attrib[VARYING_SLOT_TEX0][1] - vMin->attrib[VARYING_SLOT_TEX0][1]) * T_SCALE;
+ span.attrStepX[VARYING_SLOT_TEX0][0] = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds);
+ span.attrStepY[VARYING_SLOT_TEX0][0] = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx);
+ span.attrStepX[VARYING_SLOT_TEX0][1] = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt);
+ span.attrStepY[VARYING_SLOT_TEX0][1] = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx);
+ span.intTexStep[0] = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_TEX0][0]);
+ span.intTexStep[1] = SignedFloatToFixed(span.attrStepX[VARYING_SLOT_TEX0][1]);
}
#endif
#ifdef INTERP_ATTRIBS
{
- /* attrib[FRAG_ATTRIB_WPOS][3] is 1/W */
- const GLfloat wMax = vMax->attrib[FRAG_ATTRIB_WPOS][3];
- const GLfloat wMin = vMin->attrib[FRAG_ATTRIB_WPOS][3];
- const GLfloat wMid = vMid->attrib[FRAG_ATTRIB_WPOS][3];
+ /* attrib[VARYING_SLOT_POS][3] is 1/W */
+ const GLfloat wMax = vMax->attrib[VARYING_SLOT_POS][3];
+ const GLfloat wMin = vMin->attrib[VARYING_SLOT_POS][3];
+ const GLfloat wMid = vMid->attrib[VARYING_SLOT_POS][3];
{
const GLfloat eMaj_dw = wMax - wMin;
const GLfloat eBot_dw = wMid - wMin;
- span.attrStepX[FRAG_ATTRIB_WPOS][3] = oneOverArea * (eMaj_dw * eBot.dy - eMaj.dy * eBot_dw);
- span.attrStepY[FRAG_ATTRIB_WPOS][3] = oneOverArea * (eMaj.dx * eBot_dw - eMaj_dw * eBot.dx);
+ span.attrStepX[VARYING_SLOT_POS][3] = oneOverArea * (eMaj_dw * eBot.dy - eMaj.dy * eBot_dw);
+ span.attrStepY[VARYING_SLOT_POS][3] = oneOverArea * (eMaj.dx * eBot_dw - eMaj_dw * eBot.dx);
}
ATTRIB_LOOP_BEGIN
if (swrast->_InterpMode[attr] == GL_FLAT) {
#ifdef INTERP_ALPHA
GLint aLeft = 0, fdaOuter = 0, fdaInner;
#endif
-#ifdef INTERP_INDEX
- GLfixed iLeft=0, diOuter=0, diInner;
-#endif
#ifdef INTERP_INT_TEX
GLfixed sLeft=0, dsOuter=0, dsInner;
GLfixed tLeft=0, dtOuter=0, dtInner;
#endif
#ifdef INTERP_ATTRIBS
GLfloat wLeft = 0, dwOuter = 0, dwInner;
- GLfloat attrLeft[FRAG_ATTRIB_MAX][4];
- GLfloat daOuter[FRAG_ATTRIB_MAX][4], daInner[FRAG_ATTRIB_MAX][4];
+ GLfloat attrLeft[VARYING_SLOT_MAX][4];
+ GLfloat daOuter[VARYING_SLOT_MAX][4], daInner[VARYING_SLOT_MAX][4];
#endif
for (subTriangle=0; subTriangle<=1; subTriangle++) {
#ifdef INTERP_Z
{
- GLfloat z0 = vLower->attrib[FRAG_ATTRIB_WPOS][2];
+ GLfloat z0 = vLower->attrib[VARYING_SLOT_POS][2];
if (depthBits <= 16) {
/* interpolate fixed-pt values */
GLfloat tmp = (z0 * FIXED_SCALE
- + span.attrStepX[FRAG_ATTRIB_WPOS][2] * adjx
- + span.attrStepY[FRAG_ATTRIB_WPOS][2] * adjy) + FIXED_HALF;
+ + span.attrStepX[VARYING_SLOT_POS][2] * adjx
+ + span.attrStepY[VARYING_SLOT_POS][2] * adjy) + FIXED_HALF;
if (tmp < MAX_GLUINT / 2)
zLeft = (GLfixed) tmp;
else
zLeft = MAX_GLUINT / 2;
- fdzOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_WPOS][2] +
- dxOuter * span.attrStepX[FRAG_ATTRIB_WPOS][2]);
+ fdzOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_POS][2] +
+ dxOuter * span.attrStepX[VARYING_SLOT_POS][2]);
}
else {
/* interpolate depth values w/out scaling */
- zLeft = (GLuint) (z0 + span.attrStepX[FRAG_ATTRIB_WPOS][2] * FixedToFloat(adjx)
- + span.attrStepY[FRAG_ATTRIB_WPOS][2] * FixedToFloat(adjy));
- fdzOuter = (GLint) (span.attrStepY[FRAG_ATTRIB_WPOS][2] +
- dxOuter * span.attrStepX[FRAG_ATTRIB_WPOS][2]);
+ zLeft = (GLuint) (z0 + span.attrStepX[VARYING_SLOT_POS][2] * FixedToFloat(adjx)
+ + span.attrStepY[VARYING_SLOT_POS][2] * FixedToFloat(adjy));
+ fdzOuter = (GLint) (span.attrStepY[VARYING_SLOT_POS][2] +
+ dxOuter * span.attrStepX[VARYING_SLOT_POS][2]);
}
# ifdef DEPTH_TYPE
zRow = (DEPTH_TYPE *)
- zrb->GetPointer(ctx, zrb, FixedToInt(fxLeftEdge), span.y);
+ _swrast_pixel_address(zrb, FixedToInt(fxLeftEdge), span.y);
dZRowOuter = (ctx->DrawBuffer->Width + idxOuter) * sizeof(DEPTH_TYPE);
# endif
}
#ifdef INTERP_RGB
if (ctx->Light.ShadeModel == GL_SMOOTH) {
rLeft = (GLint)(ChanToFixed(vLower->color[RCOMP])
- + span.attrStepX[FRAG_ATTRIB_COL0][0] * adjx
- + span.attrStepY[FRAG_ATTRIB_COL0][0] * adjy) + FIXED_HALF;
+ + span.attrStepX[VARYING_SLOT_COL0][0] * adjx
+ + span.attrStepY[VARYING_SLOT_COL0][0] * adjy) + FIXED_HALF;
gLeft = (GLint)(ChanToFixed(vLower->color[GCOMP])
- + span.attrStepX[FRAG_ATTRIB_COL0][1] * adjx
- + span.attrStepY[FRAG_ATTRIB_COL0][1] * adjy) + FIXED_HALF;
+ + span.attrStepX[VARYING_SLOT_COL0][1] * adjx
+ + span.attrStepY[VARYING_SLOT_COL0][1] * adjy) + FIXED_HALF;
bLeft = (GLint)(ChanToFixed(vLower->color[BCOMP])
- + span.attrStepX[FRAG_ATTRIB_COL0][2] * adjx
- + span.attrStepY[FRAG_ATTRIB_COL0][2] * adjy) + FIXED_HALF;
- fdrOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_COL0][0]
- + dxOuter * span.attrStepX[FRAG_ATTRIB_COL0][0]);
- fdgOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_COL0][1]
- + dxOuter * span.attrStepX[FRAG_ATTRIB_COL0][1]);
- fdbOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_COL0][2]
- + dxOuter * span.attrStepX[FRAG_ATTRIB_COL0][2]);
+ + span.attrStepX[VARYING_SLOT_COL0][2] * adjx
+ + span.attrStepY[VARYING_SLOT_COL0][2] * adjy) + FIXED_HALF;
+ fdrOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_COL0][0]
+ + dxOuter * span.attrStepX[VARYING_SLOT_COL0][0]);
+ fdgOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_COL0][1]
+ + dxOuter * span.attrStepX[VARYING_SLOT_COL0][1]);
+ fdbOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_COL0][2]
+ + dxOuter * span.attrStepX[VARYING_SLOT_COL0][2]);
# ifdef INTERP_ALPHA
aLeft = (GLint)(ChanToFixed(vLower->color[ACOMP])
- + span.attrStepX[FRAG_ATTRIB_COL0][3] * adjx
- + span.attrStepY[FRAG_ATTRIB_COL0][3] * adjy) + FIXED_HALF;
- fdaOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_COL0][3]
- + dxOuter * span.attrStepX[FRAG_ATTRIB_COL0][3]);
+ + span.attrStepX[VARYING_SLOT_COL0][3] * adjx
+ + span.attrStepY[VARYING_SLOT_COL0][3] * adjy) + FIXED_HALF;
+ fdaOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_COL0][3]
+ + dxOuter * span.attrStepX[VARYING_SLOT_COL0][3]);
# endif
}
else {
- ASSERT(ctx->Light.ShadeModel == GL_FLAT);
+ assert(ctx->Light.ShadeModel == GL_FLAT);
rLeft = ChanToFixed(v2->color[RCOMP]);
gLeft = ChanToFixed(v2->color[GCOMP]);
bLeft = ChanToFixed(v2->color[BCOMP]);
#endif /* INTERP_RGB */
-#ifdef INTERP_INDEX
- if (ctx->Light.ShadeModel == GL_SMOOTH) {
- iLeft = (GLfixed)(vLower->attrib[FRAG_ATTRIB_CI][0] * FIXED_SCALE
- + didx * adjx + didy * adjy) + FIXED_HALF;
- diOuter = SignedFloatToFixed(didy + dxOuter * didx);
- }
- else {
- ASSERT(ctx->Light.ShadeModel == GL_FLAT);
- iLeft = FloatToFixed(v2->attrib[FRAG_ATTRIB_CI][0]);
- diOuter = 0;
- }
-#endif
#ifdef INTERP_INT_TEX
{
GLfloat s0, t0;
- s0 = vLower->attrib[FRAG_ATTRIB_TEX0][0] * S_SCALE;
- sLeft = (GLfixed)(s0 * FIXED_SCALE + span.attrStepX[FRAG_ATTRIB_TEX0][0] * adjx
- + span.attrStepY[FRAG_ATTRIB_TEX0][0] * adjy) + FIXED_HALF;
- dsOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_TEX0][0]
- + dxOuter * span.attrStepX[FRAG_ATTRIB_TEX0][0]);
-
- t0 = vLower->attrib[FRAG_ATTRIB_TEX0][1] * T_SCALE;
- tLeft = (GLfixed)(t0 * FIXED_SCALE + span.attrStepX[FRAG_ATTRIB_TEX0][1] * adjx
- + span.attrStepY[FRAG_ATTRIB_TEX0][1] * adjy) + FIXED_HALF;
- dtOuter = SignedFloatToFixed(span.attrStepY[FRAG_ATTRIB_TEX0][1]
- + dxOuter * span.attrStepX[FRAG_ATTRIB_TEX0][1]);
+ s0 = vLower->attrib[VARYING_SLOT_TEX0][0] * S_SCALE;
+ sLeft = (GLfixed)(s0 * FIXED_SCALE + span.attrStepX[VARYING_SLOT_TEX0][0] * adjx
+ + span.attrStepY[VARYING_SLOT_TEX0][0] * adjy) + FIXED_HALF;
+ dsOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_TEX0][0]
+ + dxOuter * span.attrStepX[VARYING_SLOT_TEX0][0]);
+
+ t0 = vLower->attrib[VARYING_SLOT_TEX0][1] * T_SCALE;
+ tLeft = (GLfixed)(t0 * FIXED_SCALE + span.attrStepX[VARYING_SLOT_TEX0][1] * adjx
+ + span.attrStepY[VARYING_SLOT_TEX0][1] * adjy) + FIXED_HALF;
+ dtOuter = SignedFloatToFixed(span.attrStepY[VARYING_SLOT_TEX0][1]
+ + dxOuter * span.attrStepX[VARYING_SLOT_TEX0][1]);
}
#endif
#ifdef INTERP_ATTRIBS
{
- const GLuint attr = FRAG_ATTRIB_WPOS;
- wLeft = vLower->attrib[FRAG_ATTRIB_WPOS][3]
+ const GLuint attr = VARYING_SLOT_POS;
+ wLeft = vLower->attrib[VARYING_SLOT_POS][3]
+ (span.attrStepX[attr][3] * adjx
+ span.attrStepY[attr][3] * adjy) * (1.0F/FIXED_SCALE);
dwOuter = span.attrStepY[attr][3] + dxOuter * span.attrStepX[attr][3];
}
ATTRIB_LOOP_BEGIN
- const GLfloat invW = vLower->attrib[FRAG_ATTRIB_WPOS][3];
+ const GLfloat invW = vLower->attrib[VARYING_SLOT_POS][3];
if (swrast->_InterpMode[attr] == GL_FLAT) {
GLuint c;
for (c = 0; c < 4; c++) {
#ifdef INTERP_ALPHA
fdaInner = fdaOuter + span.alphaStep;
#endif
-#ifdef INTERP_INDEX
- diInner = diOuter + span.indexStep;
-#endif
#ifdef INTERP_INT_TEX
dsInner = dsOuter + span.intTexStep[0];
dtInner = dtOuter + span.intTexStep[1];
#endif
#ifdef INTERP_ATTRIBS
- dwInner = dwOuter + span.attrStepX[FRAG_ATTRIB_WPOS][3];
+ dwInner = dwOuter + span.attrStepX[VARYING_SLOT_POS][3];
ATTRIB_LOOP_BEGIN
GLuint c;
for (c = 0; c < 4; c++) {
#ifdef INTERP_ALPHA
span.alpha = aLeft;
#endif
-#ifdef INTERP_INDEX
- span.index = iLeft;
-#endif
#ifdef INTERP_INT_TEX
span.intTex[0] = sLeft;
span.intTex[1] = tLeft;
#endif
#ifdef INTERP_ATTRIBS
- span.attrStart[FRAG_ATTRIB_WPOS][3] = wLeft;
+ span.attrStart[VARYING_SLOT_POS][3] = wLeft;
ATTRIB_LOOP_BEGIN
GLuint c;
for (c = 0; c < 4; c++) {
#endif
#ifdef INTERP_ALPHA
CLAMP_INTERPOLANT(alpha, alphaStep, len);
-#endif
-#ifdef INTERP_INDEX
- CLAMP_INTERPOLANT(index, indexStep, len);
#endif
{
RENDER_SPAN( span );
#ifdef INTERP_ALPHA
aLeft += fdaOuter;
#endif
-#ifdef INTERP_INDEX
- iLeft += diOuter;
-#endif
#ifdef INTERP_INT_TEX
sLeft += dsOuter;
tLeft += dtOuter;
#ifdef INTERP_ALPHA
aLeft += fdaInner;
#endif
-#ifdef INTERP_INDEX
- iLeft += diInner;
-#endif
#ifdef INTERP_INT_TEX
sLeft += dsInner;
tLeft += dtInner;
#undef INTERP_Z
#undef INTERP_RGB
#undef INTERP_ALPHA
-#undef INTERP_INDEX
#undef INTERP_INT_TEX
#undef INTERP_ATTRIBS
projects / mesa.git / blobdiff