diff options
Diffstat (limited to 'src/mesa/main/texstate.c')
| -rw-r--r-- | src/mesa/main/texstate.c | 1146 |
1 files changed, 1146 insertions, 0 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c new file mode 100644 index 00000000000..eee5eaa0e44 --- /dev/null +++ b/src/mesa/main/texstate.c @@ -0,0 +1,1146 @@ +/* $Id: texstate.c,v 1.1 1999/08/19 00:55:41 jtg Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.1 + * + * Copyright (C) 1999 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 <assert.h> +#include <stdio.h> +#include "context.h" +#include "enums.h" +#include "macros.h" +#include "matrix.h" +#include "texobj.h" +#include "texstate.h" +#include "texture.h" +#include "types.h" +#include "xform.h" +#ifdef XFree86Server +#include "GL/xf86glx.h" +#endif +#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 gl_TexEnvfv( GLcontext *ctx, + GLenum target, GLenum pname, const GLfloat *param ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexEnv"); + + if (target!=GL_TEXTURE_ENV) { + 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)); + + + if (pname==GL_TEXTURE_ENV_MODE) { + GLenum mode = (GLenum) (GLint) *param; + switch (mode) { + 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], 0.0, 1.0 ); + texUnit->EnvColor[1] = CLAMP( param[1], 0.0, 1.0 ); + texUnit->EnvColor[2] = CLAMP( param[2], 0.0, 1.0 ); + texUnit->EnvColor[3] = CLAMP( param[3], 0.0, 1.0 ); + } + else { + gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); + return; + } + + /* Tell device driver about the new texture environment */ + if (ctx->Driver.TexEnv) { + (*ctx->Driver.TexEnv)( ctx, pname, param ); + } +} + + + + + +void gl_GetTexEnvfv( GLcontext *ctx, + GLenum target, GLenum pname, GLfloat *params ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + 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 gl_GetTexEnviv( GLcontext *ctx, + GLenum target, GLenum pname, GLint *params ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + 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 gl_TexParameterfv( GLcontext *ctx, + GLenum target, GLenum pname, const GLfloat *params ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + GLenum eparam = (GLenum) (GLint) params[0]; + struct gl_texture_object *texObj; + + 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] = CLAMP((GLint)(params[0]*255.0), 0, 255); + texObj->BorderColor[1] = CLAMP((GLint)(params[1]*255.0), 0, 255); + texObj->BorderColor[2] = CLAMP((GLint)(params[2]*255.0), 0, 255); + texObj->BorderColor[3] = 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], 0.0, 1.0 ); + 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 gl_GetTexLevelParameterfv( GLcontext *ctx, GLenum target, GLint level, + GLenum pname, GLfloat *params ) +{ + GLint iparam; + gl_GetTexLevelParameteriv( ctx, target, level, pname, &iparam ); + *params = (GLfloat) iparam; +} + + + +void gl_GetTexLevelParameteriv( GLcontext *ctx, GLenum target, GLint level, + GLenum pname, GLint *params ) +{ + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + const struct gl_texture_image *img = NULL; + GLuint dimensions; + + 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 gl_GetTexParameterfv( GLcontext *ctx, + GLenum target, GLenum pname, GLfloat *params ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + struct gl_texture_object *obj; + + 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 = obj->BaseLevel; + break; + case GL_TEXTURE_MAX_LEVEL: + *params = obj->MaxLevel; + break; + default: + gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); + } +} + + +void gl_GetTexParameteriv( GLcontext *ctx, + GLenum target, GLenum pname, GLint *params ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; + struct gl_texture_object *obj; + + 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 = (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]/255.0; + color[1] = obj->BorderColor[1]/255.0; + color[2] = obj->BorderColor[2]/255.0; + color[3] = obj->BorderColor[3]/255.0; + 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 gl_TexGenfv( GLcontext *ctx, + GLenum coord, GLenum pname, const GLfloat *params ) +{ + 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 gl_GetTexGendv( GLcontext *ctx, + GLenum coord, GLenum pname, GLdouble *params ) +{ + 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 gl_GetTexGenfv( GLcontext *ctx, + GLenum coord, GLenum pname, GLfloat *params ) +{ + 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 gl_GetTexGeniv( GLcontext *ctx, + GLenum coord, GLenum pname, GLint *params ) +{ + 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) { + COPY_4V( params, texUnit->ObjectPlaneS ); + } + else if (pname==GL_EYE_PLANE) { + COPY_4V( params, texUnit->EyePlaneS ); + } + 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) { + COPY_4V( params, texUnit->ObjectPlaneT ); + } + else if (pname==GL_EYE_PLANE) { + COPY_4V( params, texUnit->EyePlaneT ); + } + 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) { + COPY_4V( params, texUnit->ObjectPlaneR ); + } + else if (pname==GL_EYE_PLANE) { + COPY_4V( params, texUnit->EyePlaneR ); + } + 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) { + COPY_4V( params, texUnit->ObjectPlaneQ ); + } + else if (pname==GL_EYE_PLANE) { + COPY_4V( params, texUnit->EyePlaneQ ); + } + 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 gl_ActiveTexture( GLcontext *ctx, GLenum target ) +{ + 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->TexCoordUnit = texUnit; + 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 gl_ClientActiveTexture( GLcontext *ctx, GLenum target ) +{ + 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 unit. + */ +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; +} |