swrast: Remove support for rendering antialiased lines into a color-index buffer

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

2 files changed, 9 insertions, 73 deletions

diff --git a/src/mesa/swrast/s_aaline.c b/src/mesa/swrast/s_aaline.c
index 9bfa8f2e61..6ba4604e69 100644
--- a/src/mesa/swrast/s_aaline.c
+++ b/src/mesa/swrast/s_aaline.c
@@ -59,10 +59,8 @@ struct LineInfo
 
    /* DO_Z */
    GLfloat zPlane[4];
-   /* DO_RGBA */
+   /* DO_RGBA - always enabled */
    GLfloat rPlane[4], gPlane[4], bPlane[4], aPlane[4];
-   /* DO_INDEX */
-   GLfloat iPlane[4];
    /* DO_ATTRIBS */
    GLfloat wPlane[4];
    GLfloat attrPlane[FRAG_ATTRIB_MAX][4][4];
@@ -325,20 +323,6 @@ compute_coveragef(const struct LineInfo *info,
 }
 
 
-/**
- * Compute coverage value for color index mode.
- * XXX this may not be quite correct.
- * \return coverage in [0,15].
- */
-static GLfloat
-compute_coveragei(const struct LineInfo *info,
-                  GLint winx, GLint winy)
-{
-   return compute_coveragef(info, winx, winy) * 15.0F;
-}
-
-
-
 typedef void (*plot_func)(GLcontext *ctx, struct LineInfo *line,
                           int ix, int iy);
                          
@@ -475,22 +459,13 @@ segment(GLcontext *ctx,
 }
 
 
-#define NAME(x) aa_ci_##x
-#define DO_Z
-#define DO_ATTRIBS /* for fog */
-#define DO_INDEX
-#include "s_aalinetemp.h"
-
-
 #define NAME(x) aa_rgba_##x
 #define DO_Z
-#define DO_RGBA
 #include "s_aalinetemp.h"
 
 
 #define NAME(x)  aa_general_rgba_##x
 #define DO_Z
-#define DO_RGBA
 #define DO_ATTRIBS
 #include "s_aalinetemp.h"
 
@@ -503,22 +478,15 @@ _swrast_choose_aa_line_function(GLcontext *ctx)
 
    ASSERT(ctx->Line.SmoothFlag);
 
-   if (ctx->Visual.rgbMode) {
-      /* RGBA */
-      if (ctx->Texture._EnabledCoordUnits != 0
-          || ctx->FragmentProgram._Current
-          || (ctx->Light.Enabled &&
-              ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
-          || ctx->Fog.ColorSumEnabled
-          || swrast->_FogEnabled) {
-         swrast->Line = aa_general_rgba_line;
-      }
-      else {
-         swrast->Line = aa_rgba_line;
-      }
+   if (ctx->Texture._EnabledCoordUnits != 0
+       || ctx->FragmentProgram._Current
+       || (ctx->Light.Enabled &&
+           ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
+       || ctx->Fog.ColorSumEnabled
+       || swrast->_FogEnabled) {
+      swrast->Line = aa_general_rgba_line;
    }
    else {
-      /* Color Index */
-      swrast->Line = aa_ci_line;
+      swrast->Line = aa_rgba_line;
    }
 }
diff --git a/src/mesa/swrast/s_aalinetemp.h b/src/mesa/swrast/s_aalinetemp.h
index 42ffe9f20c..c28d47a671 100644
--- a/src/mesa/swrast/s_aalinetemp.h
+++ b/src/mesa/swrast/s_aalinetemp.h
@@ -39,11 +39,7 @@ NAME(plot)(GLcontext *ctx, struct LineInfo *line, int ix, int iy)
    const SWcontext *swrast = SWRAST_CONTEXT(ctx);
    const GLfloat fx = (GLfloat) ix;
    const GLfloat fy = (GLfloat) iy;
-#ifdef DO_INDEX
-   const GLfloat coverage = compute_coveragei(line, ix, iy);
-#else
    const GLfloat coverage = compute_coveragef(line, ix, iy);
-#endif
    const GLuint i = line->span.end;
 
    (void) swrast;
@@ -63,15 +59,10 @@ NAME(plot)(GLcontext *ctx, struct LineInfo *line, int ix, int iy)
 #ifdef DO_Z
    line->span.array->z[i] = (GLuint) solve_plane(fx, fy, line->zPlane);
 #endif
-#ifdef DO_RGBA
    line->span.array->rgba[i][RCOMP] = solve_plane_chan(fx, fy, line->rPlane);
    line->span.array->rgba[i][GCOMP] = solve_plane_chan(fx, fy, line->gPlane);
    line->span.array->rgba[i][BCOMP] = solve_plane_chan(fx, fy, line->bPlane);
    line->span.array->rgba[i][ACOMP] = solve_plane_chan(fx, fy, line->aPlane);
-#endif
-#ifdef DO_INDEX
-   line->span.array->index[i] = (GLint) solve_plane(fx, fy, line->iPlane);
-#endif
 #if defined(DO_ATTRIBS)
    ATTRIB_LOOP_BEGIN
       GLfloat (*attribArray)[4] = line->span.array->attribs[attr];
@@ -101,11 +92,7 @@ NAME(plot)(GLcontext *ctx, struct LineInfo *line, int ix, int iy)
 #endif
 
    if (line->span.end == MAX_WIDTH) {
-#if defined(DO_RGBA)
       _swrast_write_rgba_span(ctx, &(line->span));
-#else
-      _swrast_write_index_span(ctx, &(line->span));
-#endif
       line->span.end = 0; /* reset counter */
    }
 }
@@ -150,7 +137,6 @@ NAME(line)(GLcontext *ctx, const SWvertex *v0, const SWvertex *v1)
    compute_plane(line.x0, line.y0, line.x1, line.y1,
                  v0->attrib[FRAG_ATTRIB_WPOS][2], v1->attrib[FRAG_ATTRIB_WPOS][2], line.zPlane);
 #endif
-#ifdef DO_RGBA
    line.span.arrayMask |= SPAN_RGBA;
    if (ctx->Light.ShadeModel == GL_SMOOTH) {
       compute_plane(line.x0, line.y0, line.x1, line.y1,
@@ -168,18 +154,6 @@ NAME(line)(GLcontext *ctx, const SWvertex *v0, const SWvertex *v1)
       constant_plane(v1->color[BCOMP], line.bPlane);
       constant_plane(v1->color[ACOMP], line.aPlane);
    }
-#endif
-#ifdef DO_INDEX
-   line.span.arrayMask |= SPAN_INDEX;
-   if (ctx->Light.ShadeModel == GL_SMOOTH) {
-      compute_plane(line.x0, line.y0, line.x1, line.y1,
-                    v0->attrib[FRAG_ATTRIB_CI][0],
-                    v1->attrib[FRAG_ATTRIB_CI][0], line.iPlane);
-   }
-   else {
-      constant_plane(v1->attrib[FRAG_ATTRIB_CI][0], line.iPlane);
-   }
-#endif
 #if defined(DO_ATTRIBS)
    {
       const GLfloat invW0 = v0->attrib[FRAG_ATTRIB_WPOS][3];
@@ -257,18 +231,12 @@ NAME(line)(GLcontext *ctx, const SWvertex *v0, const SWvertex *v1)
       segment(ctx, &line, NAME(plot), 0.0, 1.0);
    }
 
-#if defined(DO_RGBA)
    _swrast_write_rgba_span(ctx, &(line.span));
-#else
-   _swrast_write_index_span(ctx, &(line.span));
-#endif
 }
 
 
 
 
 #undef DO_Z
-#undef DO_RGBA
-#undef DO_INDEX
 #undef DO_ATTRIBS
 #undef NAME