diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/clip.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/clip.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/clip.c b/nx-X11/extras/Mesa/src/mesa/main/clip.c deleted file mode 100644 index 43ef55ee3..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/clip.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 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. - */ - - -#include "glheader.h" -#include "clip.h" -#include "context.h" -#include "macros.h" -#include "mtypes.h" - -#include "math/m_xform.h" -#include "math/m_matrix.h" - - - -/**********************************************************************/ -/* Get/Set User clip-planes. */ -/**********************************************************************/ - - - -void GLAPIENTRY -_mesa_ClipPlane( GLenum plane, const GLdouble *eq ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint p; - GLfloat equation[4]; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - p = (GLint) plane - (GLint) GL_CLIP_PLANE0; - if (p < 0 || p >= (GLint) ctx->Const.MaxClipPlanes) { - _mesa_error( ctx, GL_INVALID_ENUM, "glClipPlane" ); - return; - } - - equation[0] = (GLfloat) eq[0]; - equation[1] = (GLfloat) eq[1]; - equation[2] = (GLfloat) eq[2]; - equation[3] = (GLfloat) eq[3]; - - /* - * The equation is transformed by the transpose of the inverse of the - * current modelview matrix and stored in the resulting eye coordinates. - * - * KW: Eqn is then transformed to the current clip space, where user - * clipping now takes place. The clip-space equations are recalculated - * whenever the projection matrix changes. - */ - if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) - _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); - - _mesa_transform_vector( equation, equation, - ctx->ModelviewMatrixStack.Top->inv ); - - if (TEST_EQ_4V(ctx->Transform.EyeUserPlane[p], equation)) - return; - - FLUSH_VERTICES(ctx, _NEW_TRANSFORM); - COPY_4FV(ctx->Transform.EyeUserPlane[p], equation); - - /* Update derived state. This state also depends on the projection - * matrix, and is recalculated on changes to the projection matrix by - * code in _mesa_update_state(). - */ - if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { - if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top)) - _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); - - _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], - ctx->Transform.EyeUserPlane[p], - ctx->ProjectionMatrixStack.Top->inv ); - } - - if (ctx->Driver.ClipPlane) - ctx->Driver.ClipPlane( ctx, plane, equation ); -} - - -void GLAPIENTRY -_mesa_GetClipPlane( GLenum plane, GLdouble *equation ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint p; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - p = (GLint) (plane - GL_CLIP_PLANE0); - if (p < 0 || p >= (GLint) ctx->Const.MaxClipPlanes) { - _mesa_error( ctx, GL_INVALID_ENUM, "glGetClipPlane" ); - return; - } - - equation[0] = (GLdouble) ctx->Transform.EyeUserPlane[p][0]; - equation[1] = (GLdouble) ctx->Transform.EyeUserPlane[p][1]; - equation[2] = (GLdouble) ctx->Transform.EyeUserPlane[p][2]; - equation[3] = (GLdouble) ctx->Transform.EyeUserPlane[p][3]; -} - -void GLAPIENTRY -_mesa_CullParameterfvEXT (GLenum cap, GLfloat *v) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (cap) { - case GL_CULL_VERTEX_EYE_POSITION_EXT: - FLUSH_VERTICES(ctx, _NEW_TRANSFORM); - COPY_4FV(ctx->Transform.CullEyePos, v); - - _mesa_transform_vector( ctx->Transform.CullObjPos, - ctx->Transform.CullEyePos, - ctx->ModelviewMatrixStack.Top->inv ); - break; - - case GL_CULL_VERTEX_OBJECT_POSITION_EXT: - FLUSH_VERTICES(ctx, _NEW_TRANSFORM); - COPY_4FV(ctx->Transform.CullObjPos, v); - - _mesa_transform_vector( ctx->Transform.CullEyePos, - ctx->Transform.CullObjPos, - ctx->ModelviewMatrixStack.Top->m ); - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glCullParameterfvEXT" ); - } -} - -void GLAPIENTRY -_mesa_CullParameterdvEXT (GLenum cap, GLdouble *v) -{ - GLfloat f[4]; - - f[0] = (GLfloat)v[0]; - f[1] = (GLfloat)v[1]; - f[2] = (GLfloat)v[2]; - f[3] = (GLfloat)v[3]; - - _mesa_CullParameterfvEXT(cap, f); -} - |