mesa: refactor: move glTexGen-related functions into new texgen.c file

(cherry picked from commit 27049189d6221fefe43eb55846efaa51742dcdf4)

1 files changed, 605 insertions, 0 deletions

diff --git a/src/mesa/main/texgen.c b/src/mesa/main/texgen.c
new file mode 100644
index 00000000000..1018c3037bc
--- /dev/null
+++ b/src/mesa/main/texgen.c
@@ -0,0 +1,605 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * 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.
+ */
+
+/** 
+ * \file texgen.c
+ *
+ * glTexGen-related functions
+ */
+
+
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/enums.h"
+#include "main/macros.h"
+#include "main/texgen.h"
+#include "math/m_xform.h"
+
+
+#define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X))
+#define ENUM_TO_DOUBLE(X) ((GLdouble)(GLint)(X))
+
+
+
+void GLAPIENTRY
+_mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_texture_unit *texUnit;
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glTexGen %s %s %.1f(%s)...\n",
+                  _mesa_lookup_enum_by_nr(coord),
+                  _mesa_lookup_enum_by_nr(pname),
+                  *params,
+		  _mesa_lookup_enum_by_nr((GLenum) (GLint) *params));
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTexGen(current unit)");
+      return;
+   }
+
+   texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   switch (coord) {
+      case GL_S:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+	    GLenum mode = (GLenum) (GLint) *params;
+	    GLbitfield bits;
+	    switch (mode) {
+	    case GL_OBJECT_LINEAR:
+	       bits = TEXGEN_OBJ_LINEAR;
+	       break;
+	    case GL_EYE_LINEAR:
+	       bits = TEXGEN_EYE_LINEAR;
+	       break;
+	    case GL_REFLECTION_MAP_NV:
+	       bits = TEXGEN_REFLECTION_MAP_NV;
+	       break;
+	    case GL_NORMAL_MAP_NV:
+	       bits = TEXGEN_NORMAL_MAP_NV;
+	       break;
+	    case GL_SPHERE_MAP:
+	       bits = TEXGEN_SPHERE_MAP;
+	       break;
+	    default:
+	       _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
+	       return;
+	    }
+	    if (texUnit->GenModeS == mode)
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    texUnit->GenModeS = mode;
+	    texUnit->_GenBitS = bits;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+	    if (TEST_EQ_4V(texUnit->ObjectPlaneS, params))
+		return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            COPY_4FV(texUnit->ObjectPlaneS, params);
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+	    GLfloat tmp[4];
+            /* Transform plane equation by the inverse modelview matrix */
+            if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) {
+               _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
+            }
+            _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->inv );
+	    if (TEST_EQ_4V(texUnit->EyePlaneS, tmp))
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    COPY_4FV(texUnit->EyePlaneS, tmp);
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_T:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+	    GLenum mode = (GLenum) (GLint) *params;
+	    GLbitfield bitt;
+	    switch (mode) {
+               case GL_OBJECT_LINEAR:
+                  bitt = TEXGEN_OBJ_LINEAR;
+                  break;
+               case GL_EYE_LINEAR:
+                  bitt = TEXGEN_EYE_LINEAR;
+                  break;
+               case GL_REFLECTION_MAP_NV:
+                  bitt = TEXGEN_REFLECTION_MAP_NV;
+                  break;
+               case GL_NORMAL_MAP_NV:
+                  bitt = TEXGEN_NORMAL_MAP_NV;
+                  break;
+               case GL_SPHERE_MAP:
+                  bitt = TEXGEN_SPHERE_MAP;
+                  break;
+               default:
+                  _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
+                  return;
+	    }
+	    if (texUnit->GenModeT == mode)
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    texUnit->GenModeT = mode;
+	    texUnit->_GenBitT = bitt;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+	    if (TEST_EQ_4V(texUnit->ObjectPlaneT, params))
+		return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            COPY_4FV(texUnit->ObjectPlaneT, params);
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+	    GLfloat tmp[4];
+            /* Transform plane equation by the inverse modelview matrix */
+	    if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) {
+               _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
+            }
+            _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->inv );
+	    if (TEST_EQ_4V(texUnit->EyePlaneT, tmp))
+		return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    COPY_4FV(texUnit->EyePlaneT, tmp);
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_R:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+	    GLenum mode = (GLenum) (GLint) *params;
+	    GLbitfield bitr;
+	    switch (mode) {
+	    case GL_OBJECT_LINEAR:
+	       bitr = TEXGEN_OBJ_LINEAR;
+	       break;
+	    case GL_REFLECTION_MAP_NV:
+	       bitr = TEXGEN_REFLECTION_MAP_NV;
+	       break;
+	    case GL_NORMAL_MAP_NV:
+	       bitr = TEXGEN_NORMAL_MAP_NV;
+	       break;
+	    case GL_EYE_LINEAR:
+	       bitr = TEXGEN_EYE_LINEAR;
+	       break;
+	    default:
+	       _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
+	       return;
+	    }
+	    if (texUnit->GenModeR == mode)
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    texUnit->GenModeR = mode;
+	    texUnit->_GenBitR = bitr;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+	    if (TEST_EQ_4V(texUnit->ObjectPlaneR, params))
+		return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    COPY_4FV(texUnit->ObjectPlaneR, params);
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+	    GLfloat tmp[4];
+            /* Transform plane equation by the inverse modelview matrix */
+            if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) {
+               _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
+            }
+            _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->inv );
+	    if (TEST_EQ_4V(texUnit->EyePlaneR, tmp))
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    COPY_4FV(texUnit->EyePlaneR, tmp);
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_Q:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+	    GLenum mode = (GLenum) (GLint) *params;
+	    GLbitfield bitq;
+	    switch (mode) {
+	    case GL_OBJECT_LINEAR:
+	       bitq = TEXGEN_OBJ_LINEAR;
+	       break;
+	    case GL_EYE_LINEAR:
+	       bitq = TEXGEN_EYE_LINEAR;
+	       break;
+	    default:
+	       _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
+	       return;
+	    }
+	    if (texUnit->GenModeQ == mode)
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    texUnit->GenModeQ = mode;
+	    texUnit->_GenBitQ = bitq;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+	    if (TEST_EQ_4V(texUnit->ObjectPlaneQ, params))
+		return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            COPY_4FV(texUnit->ObjectPlaneQ, params);
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+	    GLfloat tmp[4];
+            /* Transform plane equation by the inverse modelview matrix */
+            if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) {
+               _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
+            }
+            _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->inv );
+	    if (TEST_EQ_4V(texUnit->EyePlaneQ, tmp))
+	       return;
+	    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+	    COPY_4FV(texUnit->EyePlaneQ, tmp);
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(coord)" );
+	 return;
+   }
+
+   if (ctx->Driver.TexGen)
+      ctx->Driver.TexGen( ctx, coord, pname, params );
+}
+
+
+void GLAPIENTRY
+_mesa_TexGeniv(GLenum coord, GLenum pname, const GLint *params )
+{
+   GLfloat p[4];
+   p[0] = (GLfloat) params[0];
+   if (pname == GL_TEXTURE_GEN_MODE) {
+      p[1] = p[2] = p[3] = 0.0F;
+   }
+   else {
+      p[1] = (GLfloat) params[1];
+      p[2] = (GLfloat) params[2];
+      p[3] = (GLfloat) params[3];
+   }
+   _mesa_TexGenfv(coord, pname, p);
+}
+
+
+void GLAPIENTRY
+_mesa_TexGend(GLenum coord, GLenum pname, GLdouble param )
+{
+   GLfloat p = (GLfloat) param;
+   _mesa_TexGenfv( coord, pname, &p );
+}
+
+
+void GLAPIENTRY
+_mesa_TexGendv(GLenum coord, GLenum pname, const GLdouble *params )
+{
+   GLfloat p[4];
+   p[0] = (GLfloat) params[0];
+   if (pname == GL_TEXTURE_GEN_MODE) {
+      p[1] = p[2] = p[3] = 0.0F;
+   }
+   else {
+      p[1] = (GLfloat) params[1];
+      p[2] = (GLfloat) params[2];
+      p[3] = (GLfloat) params[3];
+   }
+   _mesa_TexGenfv( coord, pname, p );
+}
+
+
+void GLAPIENTRY
+_mesa_TexGenf( GLenum coord, GLenum pname, GLfloat param )
+{
+   _mesa_TexGenfv(coord, pname, &param);
+}
+
+
+void GLAPIENTRY
+_mesa_TexGeni( GLenum coord, GLenum pname, GLint param )
+{
+   _mesa_TexGeniv( coord, pname, &param );
+}
+
+
+
+void GLAPIENTRY
+_mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params )
+{
+   const struct gl_texture_unit *texUnit;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexGendv(current unit)");
+      return;
+   }
+
+   texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   switch (coord) {
+      case GL_S:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_DOUBLE(texUnit->GenModeS);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneS );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneS );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_T:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_DOUBLE(texUnit->GenModeT);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneT );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneT );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_R:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_DOUBLE(texUnit->GenModeR);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneR );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneR );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_Q:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_DOUBLE(texUnit->GenModeQ);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneQ );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneQ );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
+	    return;
+	 }
+	 break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)" );
+	 return;
+   }
+}
+
+
+
+void GLAPIENTRY
+_mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params )
+{
+   const struct gl_texture_unit *texUnit;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexGenfv(current unit)");
+      return;
+   }
+
+   texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   switch (coord) {
+      case GL_S:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_FLOAT(texUnit->GenModeS);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneS );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneS );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_T:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_FLOAT(texUnit->GenModeT);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneT );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneT );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_R:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_FLOAT(texUnit->GenModeR);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneR );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneR );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_Q:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = ENUM_TO_FLOAT(texUnit->GenModeQ);
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            COPY_4V( params, texUnit->ObjectPlaneQ );
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            COPY_4V( params, texUnit->EyePlaneQ );
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
+	    return;
+	 }
+	 break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)" );
+	 return;
+   }
+}
+
+
+
+void GLAPIENTRY
+_mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params )
+{
+   const struct gl_texture_unit *texUnit;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexGeniv(current unit)");
+      return;
+   }
+
+   texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   switch (coord) {
+      case GL_S:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = texUnit->GenModeS;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            params[0] = (GLint) texUnit->ObjectPlaneS[0];
+            params[1] = (GLint) texUnit->ObjectPlaneS[1];
+            params[2] = (GLint) texUnit->ObjectPlaneS[2];
+            params[3] = (GLint) texUnit->ObjectPlaneS[3];
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            params[0] = (GLint) texUnit->EyePlaneS[0];
+            params[1] = (GLint) texUnit->EyePlaneS[1];
+            params[2] = (GLint) texUnit->EyePlaneS[2];
+            params[3] = (GLint) texUnit->EyePlaneS[3];
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_T:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = texUnit->GenModeT;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            params[0] = (GLint) texUnit->ObjectPlaneT[0];
+            params[1] = (GLint) texUnit->ObjectPlaneT[1];
+            params[2] = (GLint) texUnit->ObjectPlaneT[2];
+            params[3] = (GLint) texUnit->ObjectPlaneT[3];
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            params[0] = (GLint) texUnit->EyePlaneT[0];
+            params[1] = (GLint) texUnit->EyePlaneT[1];
+            params[2] = (GLint) texUnit->EyePlaneT[2];
+            params[3] = (GLint) texUnit->EyePlaneT[3];
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_R:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = texUnit->GenModeR;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            params[0] = (GLint) texUnit->ObjectPlaneR[0];
+            params[1] = (GLint) texUnit->ObjectPlaneR[1];
+            params[2] = (GLint) texUnit->ObjectPlaneR[2];
+            params[3] = (GLint) texUnit->ObjectPlaneR[3];
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            params[0] = (GLint) texUnit->EyePlaneR[0];
+            params[1] = (GLint) texUnit->EyePlaneR[1];
+            params[2] = (GLint) texUnit->EyePlaneR[2];
+            params[3] = (GLint) texUnit->EyePlaneR[3];
+	 }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
+	    return;
+	 }
+	 break;
+      case GL_Q:
+         if (pname==GL_TEXTURE_GEN_MODE) {
+            params[0] = texUnit->GenModeQ;
+	 }
+	 else if (pname==GL_OBJECT_PLANE) {
+            params[0] = (GLint) texUnit->ObjectPlaneQ[0];
+            params[1] = (GLint) texUnit->ObjectPlaneQ[1];
+            params[2] = (GLint) texUnit->ObjectPlaneQ[2];
+            params[3] = (GLint) texUnit->ObjectPlaneQ[3];
+	 }
+	 else if (pname==GL_EYE_PLANE) {
+            params[0] = (GLint) texUnit->EyePlaneQ[0];
+            params[1] = (GLint) texUnit->EyePlaneQ[1];
+            params[2] = (GLint) texUnit->EyePlaneQ[2];
+            params[3] = (GLint) texUnit->EyePlaneQ[3];
+         }
+	 else {
+	    _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
+	    return;
+	 }
+	 break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)" );
+	 return;
+   }
+}
+
+