diff options
Diffstat (limited to 'src/mesa/main/clip.c')
| -rw-r--r-- | src/mesa/main/clip.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/mesa/main/clip.c b/src/mesa/main/clip.c index 131f3b60331..c2c7ec30093 100644 --- a/src/mesa/main/clip.c +++ b/src/mesa/main/clip.c @@ -1,4 +1,4 @@ -/* $Id: clip.c,v 1.18 2000/11/27 18:22:13 brianp Exp $ */ +/* $Id: clip.c,v 1.19 2000/12/26 05:09:27 keithw Exp $ */ /* * Mesa 3-D graphics library @@ -56,7 +56,7 @@ _mesa_ClipPlane( GLenum plane, const GLdouble *eq ) GET_CURRENT_CONTEXT(ctx); GLint p; GLfloat equation[4]; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glClipPlane"); + ASSERT_OUTSIDE_BEGIN_END(ctx); p = (GLint) plane - (GLint) GL_CLIP_PLANE0; if (p < 0 || p >= ctx->Const.MaxClipPlanes) { @@ -80,9 +80,13 @@ _mesa_ClipPlane( GLenum plane, const GLdouble *eq ) if (ctx->ModelView.flags & MAT_DIRTY) _math_matrix_analyse( &ctx->ModelView ); - gl_transform_vector( ctx->Transform.EyeUserPlane[p], equation, - ctx->ModelView.inv ); + gl_transform_vector( equation, equation, ctx->ModelView.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 @@ -97,8 +101,6 @@ _mesa_ClipPlane( GLenum plane, const GLdouble *eq ) ctx->ProjectionMatrix.inv ); } - ctx->NewState |= _NEW_TRANSFORM; - if (ctx->Driver.ClipPlane) ctx->Driver.ClipPlane( ctx, plane, equation ); } @@ -109,9 +111,7 @@ _mesa_GetClipPlane( GLenum plane, GLdouble *equation ) { GET_CURRENT_CONTEXT(ctx); GLint p; - - ASSERT_OUTSIDE_BEGIN_END(ctx, "glGetClipPlane"); - + ASSERT_OUTSIDE_BEGIN_END(ctx); p = (GLint) (plane - GL_CLIP_PLANE0); if (p < 0 || p >= ctx->Const.MaxClipPlanes) { |