Move guts of glRasterPos down into T&L module.

5 files changed, 44 insertions, 530 deletions

diff --git a/src/mesa/drivers/common/driverfuncs.c b/src/mesa/drivers/common/driverfuncs.c
index 9b1c3f1e060..500dbb25456 100644
--- a/src/mesa/drivers/common/driverfuncs.c
+++ b/src/mesa/drivers/common/driverfuncs.c
@@ -79,6 +79,7 @@ _mesa_init_driver_functions(struct dd_function_table *driver)
    /* framebuffer/image functions */
    driver->Clear = _swrast_Clear;
    driver->Accum = _swrast_Accum;
+   driver->RasterPos = _tnl_RasterPos;
    driver->DrawPixels = _swrast_DrawPixels;
    driver->ReadPixels = _swrast_ReadPixels;
    driver->CopyPixels = _swrast_CopyPixels;
diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index caa50dd6826..582e0c334df 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -111,6 +111,11 @@ struct dd_function_table {
 
 
    /**
+    * Execute glRasterPos, updating the ctx->Current.Raster fields
+    */
+   void (*RasterPos)( GLcontext *ctx, const GLfloat v[4] );
+
+   /**
     * \name Image-related functions
     */
    /*@{*/
diff --git a/src/mesa/main/rastpos.c b/src/mesa/main/rastpos.c
index 2d71014a187..eef3b09d6db 100644
--- a/src/mesa/main/rastpos.c
+++ b/src/mesa/main/rastpos.c
@@ -29,674 +29,178 @@
  */
 
 #include "glheader.h"
-#include "colormac.h"
 #include "context.h"
 #include "feedback.h"
-#include "light.h"
 #include "macros.h"
 #include "rastpos.h"
 #include "state.h"
-#include "simple_list.h"
-#include "mtypes.h"
-
-#include "math/m_matrix.h"
-
-
-/**
- * Clip a point against the view volume.
- *
- * \param v vertex vector describing the point to clip.
- * 
- * \return zero if outside view volume, or one if inside.
- */
-static GLuint
-viewclip_point( const GLfloat v[] )
-{
-   if (   v[0] > v[3] || v[0] < -v[3]
-       || v[1] > v[3] || v[1] < -v[3]
-       || v[2] > v[3] || v[2] < -v[3] ) {
-      return 0;
-   }
-   else {
-      return 1;
-   }
-}
-
-
-/**
- * Clip a point against the far/near Z clipping planes.
- *
- * \param v vertex vector describing the point to clip.
- * 
- * \return zero if outside view volume, or one if inside.
- */
-static GLuint
-viewclip_point_z( const GLfloat v[] )
-{
-   if (v[2] > v[3] || v[2] < -v[3] ) {
-      return 0;
-   }
-   else {
-      return 1;
-   }
-}
-
-
-/**
- * Clip a point against the user clipping planes.
- * 
- * \param ctx GL context.
- * \param v vertex vector describing the point to clip.
- * 
- * \return zero if the point was clipped, or one otherwise.
- */
-static GLuint
-userclip_point( GLcontext *ctx, const GLfloat v[] )
-{
-   GLuint p;
-
-   for (p = 0; p < ctx->Const.MaxClipPlanes; p++) {
-      if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {
-	 GLfloat dot = v[0] * ctx->Transform._ClipUserPlane[p][0]
-		     + v[1] * ctx->Transform._ClipUserPlane[p][1]
-		     + v[2] * ctx->Transform._ClipUserPlane[p][2]
-		     + v[3] * ctx->Transform._ClipUserPlane[p][3];
-         if (dot < 0.0F) {
-            return 0;
-         }
-      }
-   }
-
-   return 1;
-}
-
-
-/**
- * Compute lighting for the raster position.  Both RGB and CI modes computed.
- * \param ctx the context
- * \param vertex vertex location
- * \param normal normal vector
- * \param Rcolor returned color
- * \param Rspec returned specular color (if separate specular enabled)
- * \param Rindex returned color index
- */
-static void
-shade_rastpos(GLcontext *ctx,
-              const GLfloat vertex[4],
-              const GLfloat normal[3],
-              GLfloat Rcolor[4],
-              GLfloat Rspec[4],
-              GLfloat *Rindex)
-{
-   /*const*/ GLfloat (*base)[3] = ctx->Light._BaseColor;
-   const struct gl_light *light;
-   GLfloat diffuseColor[4], specularColor[4];  /* for RGB mode only */
-   GLfloat diffuseCI = 0.0, specularCI = 0.0;  /* for CI mode only */
-
-   _mesa_validate_all_lighting_tables( ctx );
-
-   COPY_3V(diffuseColor, base[0]);
-   diffuseColor[3] = CLAMP( 
-      ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3], 0.0F, 1.0F );
-   ASSIGN_4V(specularColor, 0.0, 0.0, 0.0, 1.0);
-
-   foreach (light, &ctx->Light.EnabledList) {
-      GLfloat attenuation = 1.0;
-      GLfloat VP[3]; /* vector from vertex to light pos */
-      GLfloat n_dot_VP;
-      GLfloat diffuseContrib[3], specularContrib[3];
-
-      if (!(light->_Flags & LIGHT_POSITIONAL)) {
-         /* light at infinity */
-	 COPY_3V(VP, light->_VP_inf_norm);
-	 attenuation = light->_VP_inf_spot_attenuation;
-      }
-      else {
-         /* local/positional light */
-	 GLfloat d;
-
-         /* VP = vector from vertex pos to light[i].pos */
-	 SUB_3V(VP, light->_Position, vertex);
-         /* d = length(VP) */
-	 d = (GLfloat) LEN_3FV( VP );
-	 if (d > 1.0e-6) {
-            /* normalize VP */
-	    GLfloat invd = 1.0F / d;
-	    SELF_SCALE_SCALAR_3V(VP, invd);
-	 }
-
-         /* atti */
-	 attenuation = 1.0F / (light->ConstantAttenuation + d *
-			       (light->LinearAttenuation + d *
-				light->QuadraticAttenuation));
-
-	 if (light->_Flags & LIGHT_SPOT) {
-	    GLfloat PV_dot_dir = - DOT3(VP, light->_NormDirection);
-
-	    if (PV_dot_dir<light->_CosCutoff) {
-	       continue;
-	    }
-	    else {
-	       double x = PV_dot_dir * (EXP_TABLE_SIZE-1);
-	       int k = (int) x;
-	       GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0]
-			       + (x-k)*light->_SpotExpTable[k][1]);
-	       attenuation *= spot;
-	    }
-	 }
-      }
-
-      if (attenuation < 1e-3)
-	 continue;
-
-      n_dot_VP = DOT3( normal, VP );
-
-      if (n_dot_VP < 0.0F) {
-	 ACC_SCALE_SCALAR_3V(diffuseColor, attenuation, light->_MatAmbient[0]);
-	 continue;
-      }
-
-      /* Ambient + diffuse */
-      COPY_3V(diffuseContrib, light->_MatAmbient[0]);
-      ACC_SCALE_SCALAR_3V(diffuseContrib, n_dot_VP, light->_MatDiffuse[0]);
-      diffuseCI += n_dot_VP * light->_dli * attenuation;
-
-      /* Specular */
-      {
-         const GLfloat *h;
-         GLfloat n_dot_h;
-
-         ASSIGN_3V(specularContrib, 0.0, 0.0, 0.0);
-
-	 if (ctx->Light.Model.LocalViewer) {
-	    GLfloat v[3];
-	    COPY_3V(v, vertex);
-	    NORMALIZE_3FV(v);
-	    SUB_3V(VP, VP, v);
-            NORMALIZE_3FV(VP);
-	    h = VP;
-	 }
-	 else if (light->_Flags & LIGHT_POSITIONAL) {
-	    ACC_3V(VP, ctx->_EyeZDir);
-            NORMALIZE_3FV(VP);
-	    h = VP;
-	 }
-         else {
-	    h = light->_h_inf_norm;
-	 }
-
-	 n_dot_h = DOT3(normal, h);
-
-	 if (n_dot_h > 0.0F) {
-	    GLfloat spec_coef;
-	    GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec_coef );
-
-	    if (spec_coef > 1.0e-10) {
-               if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) {
-                  ACC_SCALE_SCALAR_3V( specularContrib, spec_coef,
-                                       light->_MatSpecular[0]);
-               }
-               else {
-                  ACC_SCALE_SCALAR_3V( diffuseContrib, spec_coef,
-                                       light->_MatSpecular[0]);
-               }
-               /*assert(light->_sli > 0.0);*/
-               specularCI += spec_coef * light->_sli * attenuation;
-	    }
-	 }
-      }
-
-      ACC_SCALE_SCALAR_3V( diffuseColor, attenuation, diffuseContrib );
-      ACC_SCALE_SCALAR_3V( specularColor, attenuation, specularContrib );
-   }
-
-   if (ctx->Visual.rgbMode) {
-      Rcolor[0] = CLAMP(diffuseColor[0], 0.0F, 1.0F);
-      Rcolor[1] = CLAMP(diffuseColor[1], 0.0F, 1.0F);
-      Rcolor[2] = CLAMP(diffuseColor[2], 0.0F, 1.0F);
-      Rcolor[3] = CLAMP(diffuseColor[3], 0.0F, 1.0F);
-      Rspec[0] = CLAMP(specularColor[0], 0.0F, 1.0F);
-      Rspec[1] = CLAMP(specularColor[1], 0.0F, 1.0F);
-      Rspec[2] = CLAMP(specularColor[2], 0.0F, 1.0F);
-      Rspec[3] = CLAMP(specularColor[3], 0.0F, 1.0F);
-   }
-   else {
-      GLfloat *ind = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_INDEXES];
-      GLfloat d_a = ind[MAT_INDEX_DIFFUSE] - ind[MAT_INDEX_AMBIENT];
-      GLfloat s_a = ind[MAT_INDEX_SPECULAR] - ind[MAT_INDEX_AMBIENT];
-      GLfloat i = (ind[MAT_INDEX_AMBIENT]
-		   + diffuseCI * (1.0F-specularCI) * d_a
-		   + specularCI * s_a);
-      if (i > ind[MAT_INDEX_SPECULAR]) {
-	 i = ind[MAT_INDEX_SPECULAR];
-      }
-      *Rindex = i;
-   }
-}
 
 
 /**
- * Do texgen needed for glRasterPos.
- * \param ctx  rendering context
- * \param vObj  object-space vertex coordinate
- * \param vEye  eye-space vertex coordinate
- * \param normal  vertex normal
- * \param unit  texture unit number
- * \param texcoord  incoming texcoord and resulting texcoord
- */
-static void
-compute_texgen(GLcontext *ctx, const GLfloat vObj[4], const GLfloat vEye[4],
-               const GLfloat normal[3], GLuint unit, GLfloat texcoord[4])
-{
-   const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-
-   /* always compute sphere map terms, just in case */
-   GLfloat u[3], two_nu, rx, ry, rz, m, mInv;
-   COPY_3V(u, vEye);
-   NORMALIZE_3FV(u);
-   two_nu = 2.0F * DOT3(normal, u);
-   rx = u[0] - normal[0] * two_nu;
-   ry = u[1] - normal[1] * two_nu;
-   rz = u[2] - normal[2] * two_nu;
-   m = rx * rx + ry * ry + (rz + 1.0F) * (rz + 1.0F);
-   if (m > 0.0F)
-      mInv = 0.5F * _mesa_inv_sqrtf(m);
-   else
-      mInv = 0.0F;
-
-   if (texUnit->TexGenEnabled & S_BIT) {
-      switch (texUnit->GenModeS) {
-         case GL_OBJECT_LINEAR:
-            texcoord[0] = DOT4(vObj, texUnit->ObjectPlaneS);
-            break;
-         case GL_EYE_LINEAR:
-            texcoord[0] = DOT4(vEye, texUnit->EyePlaneS);
-            break;
-         case GL_SPHERE_MAP:
-            texcoord[0] = rx * mInv + 0.5F;
-            break;
-         case GL_REFLECTION_MAP:
-            texcoord[0] = rx;
-            break;
-         case GL_NORMAL_MAP:
-            texcoord[0] = normal[0];
-            break;
-         default:
-            _mesa_problem(ctx, "Bad S texgen in compute_texgen()");
-            return;
-      }
-   }
-
-   if (texUnit->TexGenEnabled & T_BIT) {
-      switch (texUnit->GenModeT) {
-         case GL_OBJECT_LINEAR:
-            texcoord[1] = DOT4(vObj, texUnit->ObjectPlaneT);
-            break;
-         case GL_EYE_LINEAR:
-            texcoord[1] = DOT4(vEye, texUnit->EyePlaneT);
-            break;
-         case GL_SPHERE_MAP:
-            texcoord[1] = ry * mInv + 0.5F;
-            break;
-         case GL_REFLECTION_MAP:
-            texcoord[1] = ry;
-            break;
-         case GL_NORMAL_MAP:
-            texcoord[1] = normal[1];
-            break;
-         default:
-            _mesa_problem(ctx, "Bad T texgen in compute_texgen()");
-            return;
-      }
-   }
-
-   if (texUnit->TexGenEnabled & R_BIT) {
-      switch (texUnit->GenModeR) {
-         case GL_OBJECT_LINEAR:
-            texcoord[2] = DOT4(vObj, texUnit->ObjectPlaneR);
-            break;
-         case GL_EYE_LINEAR:
-            texcoord[2] = DOT4(vEye, texUnit->EyePlaneR);
-            break;
-         case GL_REFLECTION_MAP:
-            texcoord[2] = rz;
-            break;
-         case GL_NORMAL_MAP:
-            texcoord[2] = normal[2];
-            break;
-         default:
-            _mesa_problem(ctx, "Bad R texgen in compute_texgen()");
-            return;
-      }
-   }
-
-   if (texUnit->TexGenEnabled & Q_BIT) {
-      switch (texUnit->GenModeQ) {
-         case GL_OBJECT_LINEAR:
-            texcoord[3] = DOT4(vObj, texUnit->ObjectPlaneQ);
-            break;
-         case GL_EYE_LINEAR:
-            texcoord[3] = DOT4(vEye, texUnit->EyePlaneQ);
-            break;
-         default:
-            _mesa_problem(ctx, "Bad Q texgen in compute_texgen()");
-            return;
-      }
-   }
-}
-
-
-
-/**
- * Set the raster position for pixel operations.
- *
- * All glRasterPos command call this function to update the current
- * raster position.
- * 
- * \param ctx GL context.
- * \param x x coordinate for the raster position.
- * \param y y coordinate for the raster position.
- * \param z z coordinate for the raster position.
- * \param w w coordinate for the raster position.
- * 
- * \sa Called by _mesa_RasterPos4f().
- *
- * Flushes the vertices, transforms and clips the vertex coordinates, and
- * finally sets the current raster position and associated data in
- * __GLcontextRec::Current.  When in selection mode calls
- * _mesa_update_hitflag() with the current raster position.
+ * Helper function for all the RasterPos functions.
  */
 static void
-raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+rasterpos(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 {
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-   FLUSH_CURRENT(ctx, 0);
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat p[4];
+
+   p[0] = x;
+   p[1] = y;
+   p[2] = z;
+   p[3] = w;
 
    if (ctx->NewState)
       _mesa_update_state( ctx );
 
-   if (ctx->VertexProgram._Enabled) {
-      /* XXX implement this */
-      _mesa_problem(ctx, "Vertex programs not implemented for glRasterPos");
-      return;
-   }
-   else {
-      GLfloat obj[4], eye[4], clip[4], ndc[3], d;
-      GLfloat *norm, eyenorm[3];
-      GLfloat *objnorm = ctx->Current.Attrib[VERT_ATTRIB_NORMAL];
-
-      ASSIGN_4V( obj, x, y, z, w );
-      /* apply modelview matrix:  eye = MV * obj */
-      TRANSFORM_POINT( eye, ctx->ModelviewMatrixStack.Top->m, obj );
-      /* apply projection matrix:  clip = Proj * eye */
-      TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye );
-
-      /* clip to view volume */
-      if (ctx->Transform.RasterPositionUnclipped) {
-         /* GL_IBM_rasterpos_clip: only clip against Z */
-         if (viewclip_point_z(clip) == 0) {
-            ctx->Current.RasterPosValid = GL_FALSE;
-            return;
-         }
-      }
-      else if (viewclip_point(clip) == 0) {
-         /* Normal OpenGL behaviour */
-         ctx->Current.RasterPosValid = GL_FALSE;
-         return;
-      }
-
-      /* clip to user clipping planes */
-      if (ctx->Transform.ClipPlanesEnabled && !userclip_point(ctx, clip)) {
-         ctx->Current.RasterPosValid = GL_FALSE;
-         return;
-      }
-
-      /* ndc = clip / W */
-      d = (clip[3] == 0.0F) ? 1.0F : 1.0F / clip[3];
-      ndc[0] = clip[0] * d;
-      ndc[1] = clip[1] * d;
-      ndc[2] = clip[2] * d;
-      /* wincoord = viewport_mapping(ndc) */
-      ctx->Current.RasterPos[0] = (ndc[0] * ctx->Viewport._WindowMap.m[MAT_SX]
-                                   + ctx->Viewport._WindowMap.m[MAT_TX]);
-      ctx->Current.RasterPos[1] = (ndc[1] * ctx->Viewport._WindowMap.m[MAT_SY]
-                                   + ctx->Viewport._WindowMap.m[MAT_TY]);
-      ctx->Current.RasterPos[2] = (ndc[2] * ctx->Viewport._WindowMap.m[MAT_SZ]
-                                   + ctx->Viewport._WindowMap.m[MAT_TZ])
-                                  / ctx->DrawBuffer->_DepthMaxF;
-      ctx->Current.RasterPos[3] = clip[3];
-
-      /* compute raster distance */
-      if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT)
-         ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0];
-      else
-         ctx->Current.RasterDistance =
-                        SQRTF( eye[0]*eye[0] + eye[1]*eye[1] + eye[2]*eye[2] );
-
-      /* compute transformed normal vector (for lighting or texgen) */
-      if (ctx->_NeedEyeCoords) {
-         const GLfloat *inv = ctx->ModelviewMatrixStack.Top->inv;
-         TRANSFORM_NORMAL( eyenorm, objnorm, inv );
-         norm = eyenorm;
-      }
-      else {
-         norm = objnorm;
-      }
-
-      /* update raster color */
-      if (ctx->Light.Enabled) {
-         /* lighting */
-         shade_rastpos( ctx, obj, norm,
-                        ctx->Current.RasterColor,
-                        ctx->Current.RasterSecondaryColor,
-                        &ctx->Current.RasterIndex );
-      }
-      else {
-         /* use current color or index */
-         if (ctx->Visual.rgbMode) {
-            COPY_4FV(ctx->Current.RasterColor,
-                     ctx->Current.Attrib[VERT_ATTRIB_COLOR0]);
-            COPY_4FV(ctx->Current.RasterSecondaryColor,
-                     ctx->Current.Attrib[VERT_ATTRIB_COLOR1]);
-         }
-         else {
-            ctx->Current.RasterIndex
-               = ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0];
-         }
-      }
-
-      /* texture coords */
-      {
-         GLuint u;
-         for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) {
-            GLfloat tc[4];
-            COPY_4V(tc, ctx->Current.Attrib[VERT_ATTRIB_TEX0 + u]);
-            if (ctx->Texture.Unit[u].TexGenEnabled) {
-               compute_texgen(ctx, obj, eye, norm, u, tc);
-            }
-            TRANSFORM_POINT(ctx->Current.RasterTexCoords[u],
-                            ctx->TextureMatrixStack[u].Top->m, tc);
-         }
-      }
-
-      ctx->Current.RasterPosValid = GL_TRUE;
-   }
-
-   if (ctx->RenderMode == GL_SELECT) {
-      _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
-   }
+   ctx->Driver.RasterPos(ctx, p);
 }
 
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2d(GLdouble x, GLdouble y)
 {
-   _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
+   rasterpos(x, y, 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2f(GLfloat x, GLfloat y)
 {
-   _mesa_RasterPos4f(x, y, 0.0F, 1.0F);
+   rasterpos(x, y, 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2i(GLint x, GLint y)
 {
-   _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
+   rasterpos((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2s(GLshort x, GLshort y)
 {
-   _mesa_RasterPos4f(x, y, 0.0F, 1.0F);
+   rasterpos(x, y, 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3d(GLdouble x, GLdouble y, GLdouble z)
 {
-   _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3f(GLfloat x, GLfloat y, GLfloat z)
 {
-   _mesa_RasterPos4f(x, y, z, 1.0F);
+   rasterpos(x, y, z, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3i(GLint x, GLint y, GLint z)
 {
-   _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3s(GLshort x, GLshort y, GLshort z)
 {
-   _mesa_RasterPos4f(x, y, z, 1.0F);
+   rasterpos(x, y, z, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4d(GLdouble x, GLdouble y, GLdouble z, GLdouble w)
 {
-   _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
 }
 
-/** Calls raster_pos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 {
-   GET_CURRENT_CONTEXT(ctx);
-   raster_pos4f(ctx, x, y, z, w);
+   rasterpos(x, y, z, w);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4i(GLint x, GLint y, GLint z, GLint w)
 {
-   _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4s(GLshort x, GLshort y, GLshort z, GLshort w)
 {
-   _mesa_RasterPos4f(x, y, z, w);
+   rasterpos(x, y, z, w);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2dv(const GLdouble *v)
 {
-   _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2fv(const GLfloat *v)
 {
-   _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F);
+   rasterpos(v[0], v[1], 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2iv(const GLint *v)
 {
-   _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos2sv(const GLshort *v)
 {
-   _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F);
+   rasterpos(v[0], v[1], 0.0F, 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3dv(const GLdouble *v)
 {
-   _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3fv(const GLfloat *v)
 {
-   _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F);
+   rasterpos(v[0], v[1], v[2], 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3iv(const GLint *v)
 {
-   _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos3sv(const GLshort *v)
 {
-   _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F);
+   rasterpos(v[0], v[1], v[2], 1.0F);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4dv(const GLdouble *v)
 {
-   _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 
 		     (GLfloat) v[2], (GLfloat) v[3]);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4fv(const GLfloat *v)
 {
-   _mesa_RasterPos4f(v[0], v[1], v[2], v[3]);
+   rasterpos(v[0], v[1], v[2], v[3]);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4iv(const GLint *v)
 {
-   _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 
 		     (GLfloat) v[2], (GLfloat) v[3]);
 }
 
-/** Calls _mesa_RasterPos4f() */
 void GLAPIENTRY
 _mesa_RasterPos4sv(const GLshort *v)
 {
-   _mesa_RasterPos4f(v[0], v[1], v[2], v[3]);
+   rasterpos(v[0], v[1], v[2], v[3]);
 }
 
 
diff --git a/src/mesa/sources b/src/mesa/sources
index ae0797ae241..437af0f57b0 100644
--- a/src/mesa/sources
+++ b/src/mesa/sources
@@ -118,6 +118,7 @@ TNL_SOURCES = \
 	tnl/t_context.c \
 	tnl/t_pipeline.c \
 	tnl/t_draw.c \
+	tnl/t_rasterpos.c \
 	tnl/t_vb_program.c \
 	tnl/t_vb_render.c \
 	tnl/t_vb_texgen.c \
diff --git a/src/mesa/tnl/tnl.h b/src/mesa/tnl/tnl.h
index 047b764dcba..4bdbed92df8 100644
--- a/src/mesa/tnl/tnl.h
+++ b/src/mesa/tnl/tnl.h
@@ -85,4 +85,7 @@ _tnl_draw_prims( GLcontext *ctx,
 extern void
 _mesa_load_tracked_matrices(GLcontext *ctx);
 
+extern void
+_tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4]);
+
 #endif