diff options
Diffstat (limited to 'src/mesa/main/texgen.c')
| -rw-r--r-- | src/mesa/main/texgen.c | 590 |
1 files changed, 164 insertions, 426 deletions
diff --git a/src/mesa/main/texgen.c b/src/mesa/main/texgen.c index 244c7aaafc..e3feb024c3 100644 --- a/src/mesa/main/texgen.c +++ b/src/mesa/main/texgen.c @@ -1,8 +1,9 @@ /* * Mesa 3-D graphics library - * Version: 7.1 + * 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"), @@ -34,15 +35,36 @@ #include "main/enums.h" #include "main/macros.h" #include "main/texgen.h" -#include "math/m_xform.h" +#include "math/m_matrix.h" +/** + * 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 ) { - GET_CURRENT_CONTEXT(ctx); 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)) @@ -59,210 +81,79 @@ _mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params ) 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; + 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) @@ -330,7 +221,8 @@ _mesa_TexGeni( GLenum coord, GLenum pname, GLint param ) void GLAPIENTRY _mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params ) { - const struct gl_texture_unit *texUnit; + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); @@ -341,70 +233,24 @@ _mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params ) 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; + 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)" ); } } @@ -413,7 +259,8 @@ _mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params ) void GLAPIENTRY _mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params ) { - const struct gl_texture_unit *texUnit; + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); @@ -424,70 +271,24 @@ _mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params ) 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; + 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)" ); } } @@ -496,7 +297,8 @@ _mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params ) void GLAPIENTRY _mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params ) { - const struct gl_texture_unit *texUnit; + struct gl_texture_unit *texUnit; + struct gl_texgen *texgen; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); @@ -507,94 +309,30 @@ _mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params ) 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; + 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)" ); } } |