diff options
Diffstat (limited to 'src/mesa/swrast/s_linetemp.h')
| -rw-r--r-- | src/mesa/swrast/s_linetemp.h | 173 |
1 files changed, 66 insertions, 107 deletions
diff --git a/src/mesa/swrast/s_linetemp.h b/src/mesa/swrast/s_linetemp.h index 7b66291eb5e..1accfc67e2c 100644 --- a/src/mesa/swrast/s_linetemp.h +++ b/src/mesa/swrast/s_linetemp.h @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5.3 + * Version: 7.0 * * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. * @@ -31,13 +31,9 @@ * The following macros may be defined to indicate what auxillary information * must be interplated along the line: * INTERP_Z - if defined, interpolate Z values - * INTERP_FOG - if defined, interpolate FOG values * INTERP_RGBA - if defined, interpolate RGBA values - * INTERP_SPEC - if defined, interpolate specular RGB values * INTERP_INDEX - if defined, interpolate color index values - * INTERP_TEX - if defined, interpolate unit 0 texcoords - * INTERP_MULTITEX - if defined, interpolate multi-texcoords - * INTERP_VARYING - if defined, interpolate GLSL varyings + * INTERP_ATTRIBS - if defined, interpolate attribs (texcoords, varying, etc) * * When one can directly address pixels in the color buffer the following * macros can be defined and used to directly compute pixel addresses during @@ -74,10 +70,10 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) const SWcontext *swrast = SWRAST_CONTEXT(ctx); SWspan span; GLuint interpFlags = 0; - GLint x0 = (GLint) vert0->win[0]; - GLint x1 = (GLint) vert1->win[0]; - GLint y0 = (GLint) vert0->win[1]; - GLint y1 = (GLint) vert1->win[1]; + GLint x0 = (GLint) vert0->attrib[FRAG_ATTRIB_WPOS][0]; + GLint x1 = (GLint) vert1->attrib[FRAG_ATTRIB_WPOS][0]; + GLint y0 = (GLint) vert0->attrib[FRAG_ATTRIB_WPOS][1]; + GLint y1 = (GLint) vert1->attrib[FRAG_ATTRIB_WPOS][1]; GLint dx, dy; GLint numPixels; GLint xstep, ystep; @@ -106,8 +102,8 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) /* Cull primitives with malformed coordinates. */ { - GLfloat tmp = vert0->win[0] + vert0->win[1] - + vert1->win[0] + vert1->win[1]; + GLfloat tmp = vert0->attrib[FRAG_ATTRIB_WPOS][0] + vert0->attrib[FRAG_ATTRIB_WPOS][1] + + vert1->attrib[FRAG_ATTRIB_WPOS][0] + vert1->attrib[FRAG_ATTRIB_WPOS][1]; if (IS_INF_OR_NAN(tmp)) return; } @@ -115,8 +111,12 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) /* printf("%s():\n", __FUNCTION__); printf(" (%f, %f, %f) -> (%f, %f, %f)\n", - vert0->win[0], vert0->win[1], vert0->win[2], - vert1->win[0], vert1->win[1], vert1->win[2]); + vert0->attrib[FRAG_ATTRIB_WPOS][0], + vert0->attrib[FRAG_ATTRIB_WPOS][1], + vert0->attrib[FRAG_ATTRIB_WPOS][2], + vert1->attrib[FRAG_ATTRIB_WPOS][0], + vert1->attrib[FRAG_ATTRIB_WPOS][1], + vert1->attrib[FRAG_ATTRIB_WPOS][2]); printf(" (%d, %d, %d) -> (%d, %d, %d)\n", vert0->color[0], vert0->color[1], vert0->color[2], vert1->color[0], vert1->color[1], vert1->color[2]); @@ -156,6 +156,18 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) if (dx == 0 && dy == 0) return; + /* + printf("%s %d,%d %g %g %g %g %g %g %g %g\n", __FUNCTION__, dx, dy, + vert0->attrib[FRAG_ATTRIB_COL1][0], + vert0->attrib[FRAG_ATTRIB_COL1][1], + vert0->attrib[FRAG_ATTRIB_COL1][2], + vert0->attrib[FRAG_ATTRIB_COL1][3], + vert1->attrib[FRAG_ATTRIB_COL1][0], + vert1->attrib[FRAG_ATTRIB_COL1][1], + vert1->attrib[FRAG_ATTRIB_COL1][2], + vert1->attrib[FRAG_ATTRIB_COL1][3]); + */ + #ifdef DEPTH_TYPE zPtr = (DEPTH_TYPE *) zrb->GetPointer(ctx, zrb, x0, y0); #endif @@ -234,33 +246,15 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) span.alphaStep = 0; } #endif -#ifdef INTERP_SPEC - interpFlags |= SPAN_SPEC; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - span.specRed = ChanToFixed(vert0->specular[0]); - span.specGreen = ChanToFixed(vert0->specular[1]); - span.specBlue = ChanToFixed(vert0->specular[2]); - span.specRedStep = (ChanToFixed(vert1->specular[0]) - span.specRed) / numPixels; - span.specGreenStep = (ChanToFixed(vert1->specular[1]) - span.specBlue) / numPixels; - span.specBlueStep = (ChanToFixed(vert1->specular[2]) - span.specGreen) / numPixels; - } - else { - span.specRed = ChanToFixed(vert1->specular[0]); - span.specGreen = ChanToFixed(vert1->specular[1]); - span.specBlue = ChanToFixed(vert1->specular[2]); - span.specRedStep = 0; - span.specGreenStep = 0; - span.specBlueStep = 0; - } -#endif #ifdef INTERP_INDEX interpFlags |= SPAN_INDEX; if (ctx->Light.ShadeModel == GL_SMOOTH) { - span.index = FloatToFixed(vert0->index); - span.indexStep = FloatToFixed(vert1->index - vert0->index) / numPixels; + span.index = FloatToFixed(vert0->attrib[FRAG_ATTRIB_CI][0]); + span.indexStep = FloatToFixed( vert1->attrib[FRAG_ATTRIB_CI][0] + - vert0->attrib[FRAG_ATTRIB_CI][0]) / numPixels; } else { - span.index = FloatToFixed(vert1->index); + span.index = FloatToFixed(vert1->attrib[FRAG_ATTRIB_CI][0]); span.indexStep = 0; } #endif @@ -268,83 +262,51 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) interpFlags |= SPAN_Z; { if (depthBits <= 16) { - span.z = FloatToFixed(vert0->win[2]) + FIXED_HALF; - span.zStep = FloatToFixed(vert1->win[2] - vert0->win[2]) / numPixels; + span.z = FloatToFixed(vert0->attrib[FRAG_ATTRIB_WPOS][2]) + FIXED_HALF; + span.zStep = FloatToFixed( vert1->attrib[FRAG_ATTRIB_WPOS][2] + - vert0->attrib[FRAG_ATTRIB_WPOS][2]) / numPixels; } else { /* don't use fixed point */ - span.z = (GLuint) vert0->win[2]; - span.zStep = (GLint) ((vert1->win[2] - vert0->win[2]) / numPixels); + span.z = (GLuint) vert0->attrib[FRAG_ATTRIB_WPOS][2]; + span.zStep = (GLint) (( vert1->attrib[FRAG_ATTRIB_WPOS][2] + - vert0->attrib[FRAG_ATTRIB_WPOS][2]) / numPixels); } } #endif -#ifdef INTERP_FOG - interpFlags |= SPAN_FOG; - span.attrStart[FRAG_ATTRIB_FOGC][0] = vert0->fog; - span.attrStepX[FRAG_ATTRIB_FOGC][0] = (vert1->fog - vert0->fog) / numPixels; -#endif -#ifdef INTERP_TEX - interpFlags |= SPAN_TEXTURE; +#if defined(INTERP_ATTRIBS) { - const GLfloat invw0 = vert0->win[3]; - const GLfloat invw1 = vert1->win[3]; const GLfloat invLen = 1.0F / numPixels; - GLfloat ds, dt, dr, dq; - span.attrStart[FRAG_ATTRIB_TEX0][0] = invw0 * vert0->attrib[FRAG_ATTRIB_TEX0][0]; - span.attrStart[FRAG_ATTRIB_TEX0][1] = invw0 * vert0->attrib[FRAG_ATTRIB_TEX0][1]; - span.attrStart[FRAG_ATTRIB_TEX0][2] = invw0 * vert0->attrib[FRAG_ATTRIB_TEX0][2]; - span.attrStart[FRAG_ATTRIB_TEX0][3] = invw0 * vert0->attrib[FRAG_ATTRIB_TEX0][3]; - ds = (invw1 * vert1->attrib[FRAG_ATTRIB_TEX0][0]) - span.attrStart[FRAG_ATTRIB_TEX0][0]; - dt = (invw1 * vert1->attrib[FRAG_ATTRIB_TEX0][1]) - span.attrStart[FRAG_ATTRIB_TEX0][1]; - dr = (invw1 * vert1->attrib[FRAG_ATTRIB_TEX0][2]) - span.attrStart[FRAG_ATTRIB_TEX0][2]; - dq = (invw1 * vert1->attrib[FRAG_ATTRIB_TEX0][3]) - span.attrStart[FRAG_ATTRIB_TEX0][3]; - span.attrStepX[FRAG_ATTRIB_TEX0][0] = ds * invLen; - span.attrStepX[FRAG_ATTRIB_TEX0][1] = dt * invLen; - span.attrStepX[FRAG_ATTRIB_TEX0][2] = dr * invLen; - span.attrStepX[FRAG_ATTRIB_TEX0][3] = dq * invLen; - span.attrStepY[FRAG_ATTRIB_TEX0][0] = 0.0F; - span.attrStepY[FRAG_ATTRIB_TEX0][1] = 0.0F; - span.attrStepY[FRAG_ATTRIB_TEX0][2] = 0.0F; - span.attrStepY[FRAG_ATTRIB_TEX0][3] = 0.0F; - } -#endif -#if defined(INTERP_MULTITEX) || defined(INTERP_VARYING) - interpFlags |= (SPAN_TEXTURE | SPAN_VARYING); - { - const GLfloat invLen = 1.0F / numPixels; - const GLfloat invw0 = vert0->win[3]; - const GLfloat invw1 = vert1->win[3]; - GLuint attr; - for (attr = swrast->_MinFragmentAttrib; attr < swrast->_MaxFragmentAttrib; attr++) { - if (swrast->_FragmentAttribs & (1 << attr)) { - GLfloat ds, dt, dr, dq; - span.attrStart[attr][0] = invw0 * vert0->attrib[attr][0]; - span.attrStart[attr][1] = invw0 * vert0->attrib[attr][1]; - span.attrStart[attr][2] = invw0 * vert0->attrib[attr][2]; - span.attrStart[attr][3] = invw0 * vert0->attrib[attr][3]; - ds = (invw1 * vert1->attrib[attr][0]) - span.attrStart[attr][0]; - dt = (invw1 * vert1->attrib[attr][1]) - span.attrStart[attr][1]; - dr = (invw1 * vert1->attrib[attr][2]) - span.attrStart[attr][2]; - dq = (invw1 * vert1->attrib[attr][3]) - span.attrStart[attr][3]; - span.attrStepX[attr][0] = ds * invLen; - span.attrStepX[attr][1] = dt * invLen; - span.attrStepX[attr][2] = dr * invLen; - span.attrStepX[attr][3] = dq * invLen; - span.attrStepY[attr][0] = 0.0F; - span.attrStepY[attr][1] = 0.0F; - span.attrStepY[attr][2] = 0.0F; - span.attrStepY[attr][3] = 0.0F; - } - } + const GLfloat invw0 = vert0->attrib[FRAG_ATTRIB_WPOS][3]; + const GLfloat invw1 = vert1->attrib[FRAG_ATTRIB_WPOS][3]; + + span.attrStart[FRAG_ATTRIB_WPOS][3] = invw0; + span.attrStepX[FRAG_ATTRIB_WPOS][3] = (invw1 - invw0) * invLen; + span.attrStepY[FRAG_ATTRIB_WPOS][3] = 0.0; + + ATTRIB_LOOP_BEGIN + if (swrast->_InterpMode[attr] == GL_FLAT) { + COPY_4V(span.attrStart[attr], vert1->attrib[attr]); + ASSIGN_4V(span.attrStepX[attr], 0.0, 0.0, 0.0, 0.0); + } + else { + GLuint c; + for (c = 0; c < 4; c++) { + float da; + span.attrStart[attr][c] = invw0 * vert0->attrib[attr][c]; + da = (invw1 * vert1->attrib[attr][c]) - span.attrStart[attr][c]; + span.attrStepX[attr][c] = da * invLen; + } + } + ASSIGN_4V(span.attrStepY[attr], 0.0, 0.0, 0.0, 0.0); + ATTRIB_LOOP_END } #endif - INIT_SPAN(span, GL_LINE, numPixels, interpFlags, SPAN_XY); - - /* Need these for fragment prog texcoord interpolation */ - span.attrStart[FRAG_ATTRIB_WPOS][3] = 1.0F; - span.attrStepX[FRAG_ATTRIB_WPOS][3] = 0.0F; - span.attrStepY[FRAG_ATTRIB_WPOS][3] = 0.0F; + INIT_SPAN(span, GL_LINE); + span.end = numPixels; + span.interpMask = interpFlags; + span.arrayMask = SPAN_XY; /* * Draw @@ -375,7 +337,7 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) #ifdef PIXEL_ADDRESS pixelPtr = (PIXEL_TYPE*) ((GLubyte*) pixelPtr + pixelXstep); #endif - if (error<0) { + if (error < 0) { error += errorInc; } else { @@ -442,11 +404,8 @@ NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) #undef NAME #undef INTERP_Z -#undef INTERP_FOG #undef INTERP_RGBA -#undef INTERP_SPEC -#undef INTERP_TEX -#undef INTERP_MULTITEX +#undef INTERP_ATTRIBS #undef INTERP_INDEX #undef PIXEL_ADDRESS #undef PIXEL_TYPE |