diff options
Diffstat (limited to 'mesalib/src/mesa/main/texgen.c')
| -rw-r--r-- | mesalib/src/mesa/main/texgen.c | 802 |
1 files changed, 401 insertions, 401 deletions
diff --git a/mesalib/src/mesa/main/texgen.c b/mesalib/src/mesa/main/texgen.c index 10eaa89ad..0ace0b936 100644 --- a/mesalib/src/mesa/main/texgen.c +++ b/mesalib/src/mesa/main/texgen.c @@ -1,401 +1,401 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.5
- *
- * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
- * Copyright (C) 2009 VMware, Inc. 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/mfeatures.h"
-#include "main/texgen.h"
-#include "main/texstate.h"
-#include "math/m_matrix.h"
-#include "main/dispatch.h"
-
-
-#if FEATURE_texgen
-
-
-/**
- * Return texgen state for given coordinate
- */
-static struct gl_texgen *
-get_texgen(struct gl_texture_unit *texUnit, GLenum coord)
-{
- switch (coord) {
- case GL_S:
- return &texUnit->GenS;
- case GL_T:
- return &texUnit->GenT;
- case GL_R:
- return &texUnit->GenR;
- case GL_Q:
- return &texUnit->GenQ;
- default:
- return NULL;
- }
-}
-
-
-void GLAPIENTRY
-_mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texgen *texgen;
- GET_CURRENT_CONTEXT(ctx);
- 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 = _mesa_get_current_tex_unit(ctx);
-
- texgen = get_texgen(texUnit, coord);
- if (!texgen) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexGen(coord)");
- return;
- }
-
- switch (pname) {
- case GL_TEXTURE_GEN_MODE:
- {
- GLenum mode = (GLenum) (GLint) params[0];
- GLbitfield bit = 0x0;
- if (texgen->Mode == mode)
- return;
- switch (mode) {
- case GL_OBJECT_LINEAR:
- bit = TEXGEN_OBJ_LINEAR;
- break;
- case GL_EYE_LINEAR:
- bit = TEXGEN_EYE_LINEAR;
- break;
- case GL_SPHERE_MAP:
- if (coord == GL_S || coord == GL_T)
- bit = TEXGEN_SPHERE_MAP;
- break;
- case GL_REFLECTION_MAP_NV:
- if (coord != GL_Q)
- bit = TEXGEN_REFLECTION_MAP_NV;
- break;
- case GL_NORMAL_MAP_NV:
- if (coord != GL_Q)
- bit = TEXGEN_NORMAL_MAP_NV;
- break;
- default:
- ; /* nop */
- }
- if (!bit) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
- return;
- }
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texgen->Mode = mode;
- texgen->_ModeBit = bit;
- }
- break;
-
- case GL_OBJECT_PLANE:
- {
- if (TEST_EQ_4V(texgen->ObjectPlane, params))
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- COPY_4FV(texgen->ObjectPlane, params);
- }
- break;
-
- case 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(texgen->EyePlane, tmp))
- return;
- FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- COPY_4FV(texgen->EyePlane, tmp);
- }
- break;
-
- default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
- return;
- }
-
- if (ctx->Driver.TexGen)
- ctx->Driver.TexGen( ctx, coord, pname, params );
-}
-
-
-static 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);
-}
-
-
-static void GLAPIENTRY
-_mesa_TexGend(GLenum coord, GLenum pname, GLdouble param )
-{
- GLfloat p[4];
- p[0] = (GLfloat) param;
- p[1] = p[2] = p[3] = 0.0F;
- _mesa_TexGenfv( coord, pname, p );
-}
-
-#if FEATURE_ES1
-
-void GLAPIENTRY
-_es_GetTexGenfv(GLenum coord, GLenum pname, GLfloat *params)
-{
- ASSERT(coord == GL_TEXTURE_GEN_STR_OES);
- _mesa_GetTexGenfv(GL_S, pname, params);
-}
-
-
-void GLAPIENTRY
-_es_TexGenf(GLenum coord, GLenum pname, GLfloat param)
-{
- ASSERT(coord == GL_TEXTURE_GEN_STR_OES);
- /* set S, T, and R at the same time */
- _mesa_TexGenf(GL_S, pname, param);
- _mesa_TexGenf(GL_T, pname, param);
- _mesa_TexGenf(GL_R, pname, param);
-}
-
-
-void GLAPIENTRY
-_es_TexGenfv(GLenum coord, GLenum pname, const GLfloat *params)
-{
- ASSERT(coord == GL_TEXTURE_GEN_STR_OES);
- /* set S, T, and R at the same time */
- _mesa_TexGenfv(GL_S, pname, params);
- _mesa_TexGenfv(GL_T, pname, params);
- _mesa_TexGenfv(GL_R, pname, params);
-}
-
-#endif
-
-static 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 )
-{
- GLfloat p[4];
- p[0] = param;
- p[1] = p[2] = p[3] = 0.0F;
- _mesa_TexGenfv(coord, pname, p);
-}
-
-
-void GLAPIENTRY
-_mesa_TexGeni( GLenum coord, GLenum pname, GLint param )
-{
- GLint p[4];
- p[0] = param;
- p[1] = p[2] = p[3] = 0;
- _mesa_TexGeniv( coord, pname, p );
-}
-
-
-
-static void GLAPIENTRY
-_mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texgen *texgen;
- 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 = _mesa_get_current_tex_unit(ctx);
-
- texgen = get_texgen(texUnit, coord);
- if (!texgen) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)");
- return;
- }
-
- switch (pname) {
- case GL_TEXTURE_GEN_MODE:
- params[0] = ENUM_TO_DOUBLE(texgen->Mode);
- break;
- case GL_OBJECT_PLANE:
- COPY_4V(params, texgen->ObjectPlane);
- break;
- case GL_EYE_PLANE:
- COPY_4V(params, texgen->EyePlane);
- break;
- default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
- }
-}
-
-
-
-void GLAPIENTRY
-_mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texgen *texgen;
- 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 = _mesa_get_current_tex_unit(ctx);
-
- texgen = get_texgen(texUnit, coord);
- if (!texgen) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)");
- return;
- }
-
- switch (pname) {
- case GL_TEXTURE_GEN_MODE:
- params[0] = ENUM_TO_FLOAT(texgen->Mode);
- break;
- case GL_OBJECT_PLANE:
- COPY_4V(params, texgen->ObjectPlane);
- break;
- case GL_EYE_PLANE:
- COPY_4V(params, texgen->EyePlane);
- break;
- default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
- }
-}
-
-
-
-static void GLAPIENTRY
-_mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texgen *texgen;
- 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 = _mesa_get_current_tex_unit(ctx);
-
- texgen = get_texgen(texUnit, coord);
- if (!texgen) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)");
- return;
- }
-
- switch (pname) {
- case GL_TEXTURE_GEN_MODE:
- params[0] = texgen->Mode;
- break;
- case GL_OBJECT_PLANE:
- params[0] = (GLint) texgen->ObjectPlane[0];
- params[1] = (GLint) texgen->ObjectPlane[1];
- params[2] = (GLint) texgen->ObjectPlane[2];
- params[3] = (GLint) texgen->ObjectPlane[3];
- break;
- case GL_EYE_PLANE:
- params[0] = (GLint) texgen->EyePlane[0];
- params[1] = (GLint) texgen->EyePlane[1];
- params[2] = (GLint) texgen->EyePlane[2];
- params[3] = (GLint) texgen->EyePlane[3];
- break;
- default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
- }
-}
-
-
-void
-_mesa_init_texgen_dispatch(struct _glapi_table *disp)
-{
- SET_GetTexGendv(disp, _mesa_GetTexGendv);
- SET_GetTexGenfv(disp, _mesa_GetTexGenfv);
- SET_GetTexGeniv(disp, _mesa_GetTexGeniv);
- SET_TexGend(disp, _mesa_TexGend);
- SET_TexGendv(disp, _mesa_TexGendv);
- SET_TexGenf(disp, _mesa_TexGenf);
- SET_TexGenfv(disp, _mesa_TexGenfv);
- SET_TexGeni(disp, _mesa_TexGeni);
- SET_TexGeniv(disp, _mesa_TexGeniv);
-}
-
-
-#endif /* FEATURE_texgen */
+/* + * Mesa 3-D graphics library + * Version: 7.5 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. 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/mfeatures.h" +#include "main/texgen.h" +#include "main/texstate.h" +#include "math/m_matrix.h" +#include "main/dispatch.h" + + +#if FEATURE_texgen + + +/** + * Return texgen state for given coordinate + */ +static struct gl_texgen * +get_texgen(struct gl_texture_unit *texUnit, GLenum coord) +{ + switch (coord) { + case GL_S: + return &texUnit->GenS; + case GL_T: + return &texUnit->GenT; + case GL_R: + return &texUnit->GenR; + case GL_Q: + return &texUnit->GenQ; + default: + return NULL; + } +} + + +void GLAPIENTRY +_mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params ) +{ + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; + GET_CURRENT_CONTEXT(ctx); + 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 = _mesa_get_current_tex_unit(ctx); + + texgen = get_texgen(texUnit, coord); + if (!texgen) { + _mesa_error(ctx, GL_INVALID_ENUM, "glTexGen(coord)"); + return; + } + + switch (pname) { + case GL_TEXTURE_GEN_MODE: + { + GLenum mode = (GLenum) (GLint) params[0]; + GLbitfield bit = 0x0; + if (texgen->Mode == mode) + return; + switch (mode) { + case GL_OBJECT_LINEAR: + bit = TEXGEN_OBJ_LINEAR; + break; + case GL_EYE_LINEAR: + bit = TEXGEN_EYE_LINEAR; + break; + case GL_SPHERE_MAP: + if (coord == GL_S || coord == GL_T) + bit = TEXGEN_SPHERE_MAP; + break; + case GL_REFLECTION_MAP_NV: + if (coord != GL_Q) + bit = TEXGEN_REFLECTION_MAP_NV; + break; + case GL_NORMAL_MAP_NV: + if (coord != GL_Q) + bit = TEXGEN_NORMAL_MAP_NV; + break; + default: + ; /* nop */ + } + if (!bit) { + _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); + return; + } + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texgen->Mode = mode; + texgen->_ModeBit = bit; + } + break; + + case GL_OBJECT_PLANE: + { + if (TEST_EQ_4V(texgen->ObjectPlane, params)) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + COPY_4FV(texgen->ObjectPlane, params); + } + break; + + case 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(texgen->EyePlane, tmp)) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + COPY_4FV(texgen->EyePlane, tmp); + } + break; + + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); + return; + } + + if (ctx->Driver.TexGen) + ctx->Driver.TexGen( ctx, coord, pname, params ); +} + + +static 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); +} + + +static void GLAPIENTRY +_mesa_TexGend(GLenum coord, GLenum pname, GLdouble param ) +{ + GLfloat p[4]; + p[0] = (GLfloat) param; + p[1] = p[2] = p[3] = 0.0F; + _mesa_TexGenfv( coord, pname, p ); +} + +#if FEATURE_ES1 + +void GLAPIENTRY +_es_GetTexGenfv(GLenum coord, GLenum pname, GLfloat *params) +{ + ASSERT(coord == GL_TEXTURE_GEN_STR_OES); + _mesa_GetTexGenfv(GL_S, pname, params); +} + + +void GLAPIENTRY +_es_TexGenf(GLenum coord, GLenum pname, GLfloat param) +{ + ASSERT(coord == GL_TEXTURE_GEN_STR_OES); + /* set S, T, and R at the same time */ + _mesa_TexGenf(GL_S, pname, param); + _mesa_TexGenf(GL_T, pname, param); + _mesa_TexGenf(GL_R, pname, param); +} + + +void GLAPIENTRY +_es_TexGenfv(GLenum coord, GLenum pname, const GLfloat *params) +{ + ASSERT(coord == GL_TEXTURE_GEN_STR_OES); + /* set S, T, and R at the same time */ + _mesa_TexGenfv(GL_S, pname, params); + _mesa_TexGenfv(GL_T, pname, params); + _mesa_TexGenfv(GL_R, pname, params); +} + +#endif + +static 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 ) +{ + GLfloat p[4]; + p[0] = param; + p[1] = p[2] = p[3] = 0.0F; + _mesa_TexGenfv(coord, pname, p); +} + + +void GLAPIENTRY +_mesa_TexGeni( GLenum coord, GLenum pname, GLint param ) +{ + GLint p[4]; + p[0] = param; + p[1] = p[2] = p[3] = 0; + _mesa_TexGeniv( coord, pname, p ); +} + + + +static void GLAPIENTRY +_mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params ) +{ + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; + 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 = _mesa_get_current_tex_unit(ctx); + + texgen = get_texgen(texUnit, coord); + if (!texgen) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)"); + return; + } + + switch (pname) { + case GL_TEXTURE_GEN_MODE: + params[0] = ENUM_TO_DOUBLE(texgen->Mode); + break; + case GL_OBJECT_PLANE: + COPY_4V(params, texgen->ObjectPlane); + break; + case GL_EYE_PLANE: + COPY_4V(params, texgen->EyePlane); + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); + } +} + + + +void GLAPIENTRY +_mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params ) +{ + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; + 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 = _mesa_get_current_tex_unit(ctx); + + texgen = get_texgen(texUnit, coord); + if (!texgen) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)"); + return; + } + + switch (pname) { + case GL_TEXTURE_GEN_MODE: + params[0] = ENUM_TO_FLOAT(texgen->Mode); + break; + case GL_OBJECT_PLANE: + COPY_4V(params, texgen->ObjectPlane); + break; + case GL_EYE_PLANE: + COPY_4V(params, texgen->EyePlane); + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); + } +} + + + +static void GLAPIENTRY +_mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params ) +{ + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; + 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 = _mesa_get_current_tex_unit(ctx); + + texgen = get_texgen(texUnit, coord); + if (!texgen) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)"); + return; + } + + switch (pname) { + case GL_TEXTURE_GEN_MODE: + params[0] = texgen->Mode; + break; + case GL_OBJECT_PLANE: + params[0] = (GLint) texgen->ObjectPlane[0]; + params[1] = (GLint) texgen->ObjectPlane[1]; + params[2] = (GLint) texgen->ObjectPlane[2]; + params[3] = (GLint) texgen->ObjectPlane[3]; + break; + case GL_EYE_PLANE: + params[0] = (GLint) texgen->EyePlane[0]; + params[1] = (GLint) texgen->EyePlane[1]; + params[2] = (GLint) texgen->EyePlane[2]; + params[3] = (GLint) texgen->EyePlane[3]; + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); + } +} + + +void +_mesa_init_texgen_dispatch(struct _glapi_table *disp) +{ + SET_GetTexGendv(disp, _mesa_GetTexGendv); + SET_GetTexGenfv(disp, _mesa_GetTexGenfv); + SET_GetTexGeniv(disp, _mesa_GetTexGeniv); + SET_TexGend(disp, _mesa_TexGend); + SET_TexGendv(disp, _mesa_TexGendv); + SET_TexGenf(disp, _mesa_TexGenf); + SET_TexGenfv(disp, _mesa_TexGenfv); + SET_TexGeni(disp, _mesa_TexGeni); + SET_TexGeniv(disp, _mesa_TexGeniv); +} + + +#endif /* FEATURE_texgen */ |