/* $Id: texstate.c,v 1.9 2000/03/07 17:54:58 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 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.
*/
#ifdef PC_HEADER
#include "all.h"
#else
#include "glheader.h"
#include "context.h"
#include "enums.h"
#include "extensions.h"
#include "macros.h"
#include "matrix.h"
#include "texobj.h"
#include "texstate.h"
#include "texture.h"
#include "types.h"
#include "xform.h"
#endif
#ifdef SPECIALCAST
/* Needed for an Amiga compiler */
#define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X))
#define ENUM_TO_DOUBLE(X) ((GLdouble)(GLint)(X))
#else
/* all other compilers */
#define ENUM_TO_FLOAT(X) ((GLfloat)(X))
#define ENUM_TO_DOUBLE(X) ((GLdouble)(X))
#endif
/**********************************************************************/
/* Texture Environment */
/**********************************************************************/
void
_mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexEnv");
if (target==GL_TEXTURE_ENV) {
if (pname==GL_TEXTURE_ENV_MODE) {
GLenum mode = (GLenum) (GLint) *param;
switch (mode) {
case GL_ADD:
if (!ctx->Extensions.HaveTextureEnvAdd) {
gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)");
return;
}
/* FALL-THROUGH */
case GL_MODULATE:
case GL_BLEND:
case GL_DECAL:
case GL_REPLACE:
/* A small optimization for drivers */
if (texUnit->EnvMode == mode)
return;
if (MESA_VERBOSE & (VERBOSE_STATE|VERBOSE_TEXTURE))
fprintf(stderr, "glTexEnv: old mode %s, new mode %s\n",
gl_lookup_enum_by_nr(texUnit->EnvMode),
gl_lookup_enum_by_nr(mode));
texUnit->EnvMode = mode;
ctx->NewState |= NEW_TEXTURE_ENV;
break;
default:
gl_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" );
return;
}
}
else if (pname==GL_TEXTURE_ENV_COLOR) {
texUnit->EnvColor[0] = CLAMP( param[0], 0.0F, 1.0F );
texUnit->EnvColor[1] = CLAMP( param[1], 0.0F, 1.0F );
texUnit->EnvColor[2] = CLAMP( param[2], 0.0F, 1.0F );
texUnit->EnvColor[3] = CLAMP( param[3], 0.0F, 1.0F );
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" );
return;
}
}
else if (target==GL_TEXTURE_FILTER_CONTROL_EXT) {
if (!ctx->Extensions.HaveTextureLodBias) {
gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" );
return;
}
if (pname==GL_TEXTURE_LOD_BIAS_EXT) {
texUnit->LodBias = param[0];
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" );
return;
}
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(target)" );
return;
}
if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
fprintf(stderr, "glTexEnv %s %s %.1f(%s) ...\n",
gl_lookup_enum_by_nr(target),
gl_lookup_enum_by_nr(pname),
*param,
gl_lookup_enum_by_nr((GLenum) (GLint) *param));
/* Tell device driver about the new texture environment */
if (ctx->Driver.TexEnv) {
(*ctx->Driver.TexEnv)( ctx, target, pname, param );
}
}
void
_mesa_TexEnvf( GLenum target, GLenum pname, GLfloat param )
{
_mesa_TexEnvfv( target, pname, ¶m );
}
void
_mesa_TexEnvi( GLenum target, GLenum pname, GLint param )
{
GLfloat p[4];
p[0] = (GLfloat) param;
p[1] = p[2] = p[3] = 0.0;
_mesa_TexEnvfv( target, pname, p );
}
void
_mesa_TexEnviv( GLenum target, GLenum pname, const GLint *param )
{
GLfloat p[4];
p[0] = INT_TO_FLOAT( param[0] );
p[1] = INT_TO_FLOAT( param[1] );
p[2] = INT_TO_FLOAT( param[2] );
p[3] = INT_TO_FLOAT( param[3] );
_mesa_TexEnvfv( target, pname, p );
}
void
_mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexEnvfv");
if (target!=GL_TEXTURE_ENV) {
gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" );
return;
}
switch (pname) {
case GL_TEXTURE_ENV_MODE:
*params = ENUM_TO_FLOAT(texUnit->EnvMode);
break;
case GL_TEXTURE_ENV_COLOR:
COPY_4FV( params, texUnit->EnvColor );
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" );
}
}
void
_mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexEnviv");
if (target!=GL_TEXTURE_ENV) {
gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" );
return;
}
switch (pname) {
case GL_TEXTURE_ENV_MODE:
*params = (GLint) texUnit->EnvMode;
break;
case GL_TEXTURE_ENV_COLOR:
params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] );
params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] );
params[2] = FLOAT_TO_INT( texUnit->EnvColor[2] );
params[3] = FLOAT_TO_INT( texUnit->EnvColor[3] );
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" );
}
}
/**********************************************************************/
/* Texture Parameters */
/**********************************************************************/
void
_mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param )
{
_mesa_TexParameterfv(target, pname, ¶m);
}
void
_mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
GLenum eparam = (GLenum) (GLint) params[0];
struct gl_texture_object *texObj;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexParameterfv");
if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
fprintf(stderr, "texPARAM %s %s %d...\n",
gl_lookup_enum_by_nr(target),
gl_lookup_enum_by_nr(pname),
eparam);
switch (target) {
case GL_TEXTURE_1D:
texObj = texUnit->CurrentD[1];
break;
case GL_TEXTURE_2D:
texObj = texUnit->CurrentD[2];
break;
case GL_TEXTURE_3D_EXT:
texObj = texUnit->CurrentD[3];
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
return;
}
switch (pname) {
case GL_TEXTURE_MIN_FILTER:
/* A small optimization */
if (texObj->MinFilter == eparam)
return;
if (eparam==GL_NEAREST || eparam==GL_LINEAR
|| eparam==GL_NEAREST_MIPMAP_NEAREST
|| eparam==GL_LINEAR_MIPMAP_NEAREST
|| eparam==GL_NEAREST_MIPMAP_LINEAR
|| eparam==GL_LINEAR_MIPMAP_LINEAR) {
texObj->MinFilter = eparam;
ctx->NewState |= NEW_TEXTURING;
}
else {
gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return;
}
break;
case GL_TEXTURE_MAG_FILTER:
/* A small optimization */
if (texObj->MagFilter == eparam)
return;
if (eparam==GL_NEAREST || eparam==GL_LINEAR) {
texObj->MagFilter = eparam;
ctx->NewState |= NEW_TEXTURING;
}
else {
gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return;
}
break;
case GL_TEXTURE_WRAP_S:
if (texObj->WrapS == eparam)
return;
if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) {
texObj->WrapS = eparam;
ctx->NewState |= NEW_TEXTURING;
}
else {
gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return;
}
break;
case GL_TEXTURE_WRAP_T:
if (texObj->WrapT == eparam)
return;
if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) {
texObj->WrapT = eparam;
ctx->NewState |= NEW_TEXTURING;
}
else {
gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return;
}
break;
case GL_TEXTURE_WRAP_R_EXT:
if (texObj->WrapR == eparam)
return;
if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) {
texObj->WrapR = eparam;
ctx->NewState |= NEW_TEXTURING;
}
else {
gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
}
break;
case GL_TEXTURE_BORDER_COLOR:
texObj->BorderColor[0] = (GLubyte) CLAMP((GLint)(params[0]*255.0), 0, 255);
texObj->BorderColor[1] = (GLubyte) CLAMP((GLint)(params[1]*255.0), 0, 255);
texObj->BorderColor[2] = (GLubyte) CLAMP((GLint)(params[2]*255.0), 0, 255);
texObj->BorderColor[3] = (GLubyte) CLAMP((GLint)(params[3]*255.0), 0, 255);
break;
case GL_TEXTURE_MIN_LOD:
texObj->MinLod = params[0];
ctx->NewState |= NEW_TEXTURING;
break;
case GL_TEXTURE_MAX_LOD:
texObj->MaxLod = params[0];
ctx->NewState |= NEW_TEXTURING;
break;
case GL_TEXTURE_BASE_LEVEL:
if (params[0] < 0.0) {
gl_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return;
}
texObj->BaseLevel = (GLint) params[0];
ctx->NewState |= NEW_TEXTURING;
break;
case GL_TEXTURE_MAX_LEVEL:
if (params[0] < 0.0) {
gl_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return;
}
texObj->MaxLevel = (GLint) params[0];
ctx->NewState |= NEW_TEXTURING;
break;
case GL_TEXTURE_PRIORITY:
/* (keithh@netcomuk.co.uk) */
texObj->Priority = CLAMP( params[0], 0.0F, 1.0F );
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexParameter(pname)" );
return;
}
gl_put_texobj_on_dirty_list( ctx, texObj );
if (ctx->Driver.TexParameter) {
(*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params );
}
}
void
_mesa_TexParameteri( GLenum target, GLenum pname, const GLint param )
{
GLfloat fparam[4];
fparam[0] = (GLfloat) param;
fparam[1] = fparam[2] = fparam[3] = 0.0;
_mesa_TexParameterfv(target, pname, fparam);
}
void
_mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params )
{
GLfloat fparam[4];
fparam[0] = (GLfloat) params[0];
fparam[1] = fparam[2] = fparam[3] = 0.0;
_mesa_TexParameterfv(target, pname, fparam);
}
void
_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
GLenum pname, GLfloat *params )
{
GLint iparam;
_mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
*params = (GLfloat) iparam;
}
void
_mesa_GetTexLevelParameteriv( GLenum target, GLint level,
GLenum pname, GLint *params )
{
GET_CURRENT_CONTEXT(ctx);
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
const struct gl_texture_image *img = NULL;
GLuint dimensions;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexLevelParameter");
if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
gl_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );
return;
}
switch (target) {
case GL_TEXTURE_1D:
img = texUnit->CurrentD[1]->Image[level];
dimensions = 1;
break;
case GL_TEXTURE_2D:
img = texUnit->CurrentD[2]->Image[level];
dimensions = 2;
break;
case GL_TEXTURE_3D:
img = texUnit->CurrentD[3]->Image[level];
dimensions = 3;
break;
case GL_PROXY_TEXTURE_1D:
img = ctx->Texture.Proxy1D->Image[level];
dimensions = 1;
break;
case GL_PROXY_TEXTURE_2D:
img = ctx->Texture.Proxy2D->Image[level];
dimensions = 2;
break;
case GL_PROXY_TEXTURE_3D:
img = ctx->Texture.Proxy3D->Image[level];
dimensions = 3;
break;
default:
gl_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)");
return;
}
if (!img) {
if (pname == GL_TEXTURE_COMPONENTS)
*params = 1;
else
*params = 0;
return;
}
switch (pname) {
case GL_TEXTURE_WIDTH:
*params = img->Width;
return;
case GL_TEXTURE_HEIGHT:
if (dimensions > 1) {
*params = img->Height;
}
else {
gl_error( ctx, GL_INVALID_ENUM,
"glGetTexLevelParameter[if]v(pname=GL_TEXTURE_HEIGHT)" );
}
return;
case GL_TEXTURE_DEPTH:
if (dimensions > 2) {
*params = img->Depth;
}
else {
gl_error( ctx, GL_INVALID_ENUM,
"glGetTexLevelParameter[if]v(pname=GL_TEXTURE_DEPTH)" );
}
return;
case GL_TEXTURE_COMPONENTS:
*params = img->IntFormat;
return;
case GL_TEXTURE_BORDER:
*params = img->Border;
return;
case GL_TEXTURE_RED_SIZE:
*params = img->RedBits;
return;
case GL_TEXTURE_GREEN_SIZE:
*params = img->GreenBits;
return;
case GL_TEXTURE_BLUE_SIZE:
*params = img->BlueBits;
return;
case GL_TEXTURE_ALPHA_SIZE:
*params = img->AlphaBits;
return;
case GL_TEXTURE_INTENSITY_SIZE:
*params = img->IntensityBits;
return;
case GL_TEXTURE_LUMINANCE_SIZE:
*params = img->LuminanceBits;
return;
case GL_TEXTURE_INDEX_SIZE_EXT:
*params = img->IndexBits;
return;
default:
gl_error( ctx, GL_INVALID_ENUM,
"glGetTexLevelParameter[if]v(pname)" );
}
}
void
_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
struct gl_texture_object *obj;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexParameterfv");
switch (target) {
case GL_TEXTURE_1D:
obj = texUnit->CurrentD[1];
break;
case GL_TEXTURE_2D:
obj = texUnit->CurrentD[2];
break;
case GL_TEXTURE_3D_EXT:
obj = texUnit->CurrentD[3];
break;
default:
gl_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)");
return;
}
switch (pname) {
case GL_TEXTURE_MAG_FILTER:
*params = ENUM_TO_FLOAT(obj->MagFilter);
break;
case GL_TEXTURE_MIN_FILTER:
*params = ENUM_TO_FLOAT(obj->MinFilter);
break;
case GL_TEXTURE_WRAP_S:
*params = ENUM_TO_FLOAT(obj->WrapS);
break;
case GL_TEXTURE_WRAP_T:
*params = ENUM_TO_FLOAT(obj->WrapT);
break;
case GL_TEXTURE_WRAP_R_EXT:
*params = ENUM_TO_FLOAT(obj->WrapR);
break;
case GL_TEXTURE_BORDER_COLOR:
params[0] = obj->BorderColor[0] / 255.0F;
params[1] = obj->BorderColor[1] / 255.0F;
params[2] = obj->BorderColor[2] / 255.0F;
params[3] = obj->BorderColor[3] / 255.0F;
break;
case GL_TEXTURE_RESIDENT:
*params = ENUM_TO_FLOAT(GL_TRUE);
break;
case GL_TEXTURE_PRIORITY:
*params = obj->Priority;
break;
case GL_TEXTURE_MIN_LOD:
*params = obj->MinLod;
break;
case GL_TEXTURE_MAX_LOD:
*params = obj->MaxLod;
break;
case GL_TEXTURE_BASE_LEVEL:
*params = (GLfloat) obj->BaseLevel;
break;
case GL_TEXTURE_MAX_LEVEL:
*params = (GLfloat) obj->MaxLevel;
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" );
}
}
void
_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
struct gl_texture_object *obj;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexParameteriv");
switch (target) {
case GL_TEXTURE_1D:
obj = texUnit->CurrentD[1];
break;
case GL_TEXTURE_2D:
obj = texUnit->CurrentD[2];
break;
case GL_TEXTURE_3D_EXT:
obj = texUnit->CurrentD[3];
break;
default:
gl_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(target)");
return;
}
switch (pname) {
case GL_TEXTURE_MAG_FILTER:
*params = (GLint) obj->MagFilter;
break;
case GL_TEXTURE_MIN_FILTER:
*params = (GLint) obj->MinFilter;
break;
case GL_TEXTURE_WRAP_S:
*params = (GLint) obj->WrapS;
break;
case GL_TEXTURE_WRAP_T:
*params = (GLint) obj->WrapT;
break;
case GL_TEXTURE_WRAP_R_EXT:
*params = (GLint) obj->WrapR;
break;
case GL_TEXTURE_BORDER_COLOR:
{
GLfloat color[4];
color[0] = obj->BorderColor[0] / 255.0F;
color[1] = obj->BorderColor[1] / 255.0F;
color[2] = obj->BorderColor[2] / 255.0F;
color[3] = obj->BorderColor[3] / 255.0F;
params[0] = FLOAT_TO_INT( color[0] );
params[1] = FLOAT_TO_INT( color[1] );
params[2] = FLOAT_TO_INT( color[2] );
params[3] = FLOAT_TO_INT( color[3] );
}
break;
case GL_TEXTURE_RESIDENT:
*params = (GLint) GL_TRUE;
break;
case GL_TEXTURE_PRIORITY:
*params = (GLint) obj->Priority;
break;
case GL_TEXTURE_MIN_LOD:
*params = (GLint) obj->MinLod;
break;
case GL_TEXTURE_MAX_LOD:
*params = (GLint) obj->MaxLod;
break;
case GL_TEXTURE_BASE_LEVEL:
*params = obj->BaseLevel;
break;
case GL_TEXTURE_MAX_LEVEL:
*params = obj->MaxLevel;
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" );
}
}
/**********************************************************************/
/* Texture Coord Generation */
/**********************************************************************/
void
_mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
GLuint tUnit = ctx->Texture.CurrentTransformUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexGenfv");
if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
fprintf(stderr, "texGEN %s %s %x...\n",
gl_lookup_enum_by_nr(coord),
gl_lookup_enum_by_nr(pname),
*(int *)params);
switch (coord) {
case GL_S:
if (pname==GL_TEXTURE_GEN_MODE) {
GLenum mode = (GLenum) (GLint) *params;
switch (mode) {
case GL_OBJECT_LINEAR:
texUnit->GenModeS = mode;
texUnit->GenBitS = TEXGEN_OBJ_LINEAR;
break;
case GL_EYE_LINEAR:
texUnit->GenModeS = mode;
texUnit->GenBitS = TEXGEN_EYE_LINEAR;
break;
case GL_REFLECTION_MAP_NV:
texUnit->GenModeS = mode;
texUnit->GenBitS = TEXGEN_REFLECTION_MAP_NV;
break;
case GL_NORMAL_MAP_NV:
texUnit->GenModeS = mode;
texUnit->GenBitS = TEXGEN_NORMAL_MAP_NV;
break;
case GL_SPHERE_MAP:
texUnit->GenModeS = mode;
texUnit->GenBitS = TEXGEN_SPHERE_MAP;
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
return;
}
}
else if (pname==GL_OBJECT_PLANE) {
texUnit->ObjectPlaneS[0] = params[0];
texUnit->ObjectPlaneS[1] = params[1];
texUnit->ObjectPlaneS[2] = params[2];
texUnit->ObjectPlaneS[3] = params[3];
}
else if (pname==GL_EYE_PLANE) {
/* Transform plane equation by the inverse modelview matrix */
if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
gl_matrix_analyze( &ctx->ModelView );
}
gl_transform_vector( texUnit->EyePlaneS, params,
ctx->ModelView.inv );
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
return;
}
break;
case GL_T:
if (pname==GL_TEXTURE_GEN_MODE) {
GLenum mode = (GLenum) (GLint) *params;
switch(mode) {
case GL_OBJECT_LINEAR:
texUnit->GenModeT = GL_OBJECT_LINEAR;
texUnit->GenBitT = TEXGEN_OBJ_LINEAR;
break;
case GL_EYE_LINEAR:
texUnit->GenModeT = GL_EYE_LINEAR;
texUnit->GenBitT = TEXGEN_EYE_LINEAR;
break;
case GL_REFLECTION_MAP_NV:
texUnit->GenModeT = GL_REFLECTION_MAP_NV;
texUnit->GenBitT = TEXGEN_REFLECTION_MAP_NV;
break;
case GL_NORMAL_MAP_NV:
texUnit->GenModeT = GL_NORMAL_MAP_NV;
texUnit->GenBitT = TEXGEN_NORMAL_MAP_NV;
break;
case GL_SPHERE_MAP:
texUnit->GenModeT = GL_SPHERE_MAP;
texUnit->GenBitT = TEXGEN_SPHERE_MAP;
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
return;
}
}
else if (pname==GL_OBJECT_PLANE) {
texUnit->ObjectPlaneT[0] = params[0];
texUnit->ObjectPlaneT[1] = params[1];
texUnit->ObjectPlaneT[2] = params[2];
texUnit->ObjectPlaneT[3] = params[3];
}
else if (pname==GL_EYE_PLANE) {
/* Transform plane equation by the inverse modelview matrix */
if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
gl_matrix_analyze( &ctx->ModelView );
}
gl_transform_vector( texUnit->EyePlaneT, params,
ctx->ModelView.inv );
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
return;
}
break;
case GL_R:
if (pname==GL_TEXTURE_GEN_MODE) {
GLenum mode = (GLenum) (GLint) *params;
switch (mode) {
case GL_OBJECT_LINEAR:
texUnit->GenModeR = GL_OBJECT_LINEAR;
texUnit->GenBitR = TEXGEN_OBJ_LINEAR;
break;
case GL_REFLECTION_MAP_NV:
texUnit->GenModeR = GL_REFLECTION_MAP_NV;
texUnit->GenBitR = TEXGEN_REFLECTION_MAP_NV;
break;
case GL_NORMAL_MAP_NV:
texUnit->GenModeR = GL_NORMAL_MAP_NV;
texUnit->GenBitR = TEXGEN_NORMAL_MAP_NV;
break;
case GL_EYE_LINEAR:
texUnit->GenModeR = GL_EYE_LINEAR;
texUnit->GenBitR = TEXGEN_EYE_LINEAR;
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
return;
}
}
else if (pname==GL_OBJECT_PLANE) {
texUnit->ObjectPlaneR[0] = params[0];
texUnit->ObjectPlaneR[1] = params[1];
texUnit->ObjectPlaneR[2] = params[2];
texUnit->ObjectPlaneR[3] = params[3];
}
else if (pname==GL_EYE_PLANE) {
/* Transform plane equation by the inverse modelview matrix */
if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
gl_matrix_analyze( &ctx->ModelView );
}
gl_transform_vector( texUnit->EyePlaneR, params,
ctx->ModelView.inv );
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
return;
}
break;
case GL_Q:
if (pname==GL_TEXTURE_GEN_MODE) {
GLenum mode = (GLenum) (GLint) *params;
switch (mode) {
case GL_OBJECT_LINEAR:
texUnit->GenModeQ = GL_OBJECT_LINEAR;
texUnit->GenBitQ = TEXGEN_OBJ_LINEAR;
break;
case GL_EYE_LINEAR:
texUnit->GenModeQ = GL_EYE_LINEAR;
texUnit->GenBitQ = TEXGEN_EYE_LINEAR;
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
return;
}
}
else if (pname==GL_OBJECT_PLANE) {
texUnit->ObjectPlaneQ[0] = params[0];
texUnit->ObjectPlaneQ[1] = params[1];
texUnit->ObjectPlaneQ[2] = params[2];
texUnit->ObjectPlaneQ[3] = params[3];
}
else if (pname==GL_EYE_PLANE) {
/* Transform plane equation by the inverse modelview matrix */
if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
gl_matrix_analyze( &ctx->ModelView );
}
gl_transform_vector( texUnit->EyePlaneQ, params,
ctx->ModelView.inv );
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(coord)" );
return;
}
ctx->NewState |= NEW_TEXTURING;
}
void
_mesa_TexGeniv(GLenum coord, GLenum pname, const GLint *params )
{
GLfloat p[4];
p[0] = params[0];
p[1] = params[1];
p[2] = params[2];
p[3] = params[3];
_mesa_TexGenfv(coord, pname, p);
}
void
_mesa_TexGend(GLenum coord, GLenum pname, GLdouble param )
{
GLfloat p = (GLfloat) param;
_mesa_TexGenfv( coord, pname, &p );
}
void
_mesa_TexGendv(GLenum coord, GLenum pname, const GLdouble *params )
{
GLfloat p[4];
p[0] = params[0];
p[1] = params[1];
p[2] = params[2];
p[3] = params[3];
_mesa_TexGenfv( coord, pname, p );
}
void
_mesa_TexGenf( GLenum coord, GLenum pname, GLfloat param )
{
_mesa_TexGenfv(coord, pname, ¶m);
}
void
_mesa_TexGeni( GLenum coord, GLenum pname, GLint param )
{
_mesa_TexGeniv( coord, pname, ¶m );
}
void
_mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params )
{
GET_CURRENT_CONTEXT(ctx);
GLuint tUnit = ctx->Texture.CurrentTransformUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexGendv");
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 {
gl_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 {
gl_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 {
gl_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 {
gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)" );
return;
}
}
void
_mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params )
{
GET_CURRENT_CONTEXT(ctx);
GLuint tUnit = ctx->Texture.CurrentTransformUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexGenfv");
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 {
gl_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 {
gl_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 {
gl_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 {
gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)" );
return;
}
}
void
_mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params )
{
GET_CURRENT_CONTEXT(ctx);
GLuint tUnit = ctx->Texture.CurrentTransformUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexGeniv");
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 {
gl_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 {
gl_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 {
gl_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 {
gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)" );
return;
}
}
/* GL_ARB_multitexture */
void
_mesa_ActiveTextureARB( GLenum target )
{
GET_CURRENT_CONTEXT(ctx);
GLint maxUnits = ctx->Const.MaxTextureUnits;
ASSERT_OUTSIDE_BEGIN_END( ctx, "glActiveTextureARB" );
if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
fprintf(stderr, "glActiveTexture %s\n",
gl_lookup_enum_by_nr(target));
if (target >= GL_TEXTURE0_ARB && target < GL_TEXTURE0_ARB + maxUnits) {
GLint texUnit = target - GL_TEXTURE0_ARB;
ctx->Texture.CurrentUnit = texUnit;
ctx->Texture.CurrentTransformUnit = texUnit;
if (ctx->Driver.ActiveTexture) {
(*ctx->Driver.ActiveTexture)( ctx, (GLuint) texUnit );
}
}
else {
gl_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)");
}
}
/* GL_ARB_multitexture */
void
_mesa_ClientActiveTextureARB( GLenum target )
{
GET_CURRENT_CONTEXT(ctx);
GLint maxUnits = ctx->Const.MaxTextureUnits;
ASSERT_OUTSIDE_BEGIN_END( ctx, "glClientActiveTextureARB" );
if (target >= GL_TEXTURE0_ARB && target < GL_TEXTURE0_ARB + maxUnits) {
GLint texUnit = target - GL_TEXTURE0_ARB;
ctx->Array.ActiveTexture = texUnit;
}
else {
gl_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)");
}
}
/*
* Put the given texture object into the list of dirty texture objects.
* When a texture object is dirty we have to reexamine it for completeness
* and perhaps choose a different texture sampling function.
*/
void gl_put_texobj_on_dirty_list( GLcontext *ctx, struct gl_texture_object *t )
{
ASSERT(ctx);
ASSERT(t);
/* Only insert if not already in the dirty list.
* The Dirty flag is only set iff the texture object is in the dirty list.
*/
if (!t->Dirty) {
ASSERT(t->NextDirty == NULL);
t->Dirty = GL_TRUE;
t->NextDirty = ctx->Shared->DirtyTexObjList;
ctx->Shared->DirtyTexObjList = t;
}
#ifdef DEBUG
else {
/* make sure t is in the list */
struct gl_texture_object *obj = ctx->Shared->DirtyTexObjList;
while (obj) {
if (obj == t) {
return;
}
obj = obj->NextDirty;
}
gl_problem(ctx, "Error in gl_put_texobj_on_dirty_list");
}
#endif
}
/*
* Remove a texture object from the dirty texture list.
*/
void gl_remove_texobj_from_dirty_list( struct gl_shared_state *shared,
struct gl_texture_object *tObj )
{
struct gl_texture_object *t, *prev = NULL;
ASSERT(shared);
ASSERT(tObj);
for (t = shared->DirtyTexObjList; t; t = t->NextDirty) {
if (t == tObj) {
if (prev) {
prev->NextDirty = t->NextDirty;
}
else {
shared->DirtyTexObjList = t->NextDirty;
}
return;
}
prev = t;
}
}
/*
* This is called by gl_update_state() if the NEW_TEXTURING bit in
* ctx->NewState is set.
*/
void gl_update_dirty_texobjs( GLcontext *ctx )
{
struct gl_texture_object *t, *next;
for (t = ctx->Shared->DirtyTexObjList; t; t = next) {
next = t->NextDirty;
gl_test_texture_object_completeness(ctx, t);
gl_set_texture_sampler(t);
t->NextDirty = NULL;
t->Dirty = GL_FALSE;
}
ctx->Shared->DirtyTexObjList = NULL;
}