diff options
Diffstat (limited to 'src/mesa/main/clip.c')
| -rw-r--r-- | src/mesa/main/clip.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/src/mesa/main/clip.c b/src/mesa/main/clip.c index be8ce4278cd..ba2028cf2e1 100644 --- a/src/mesa/main/clip.c +++ b/src/mesa/main/clip.c @@ -32,11 +32,20 @@ #include "math/m_matrix.h" +/** + * Update derived clip plane state. + */ +void +_mesa_update_clip_plane(struct gl_context *ctx, GLuint plane) +{ + if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top)) + _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); -/**********************************************************************/ -/* Get/Set User clip-planes. */ -/**********************************************************************/ - + /* Clip-Space Plane = Eye-Space Plane * Projection Matrix */ + _mesa_transform_vector(ctx->Transform._ClipUserPlane[plane], + ctx->Transform.EyeUserPlane[plane], + ctx->ProjectionMatrixStack.Top->inv); +} void GLAPIENTRY @@ -78,17 +87,8 @@ _mesa_ClipPlane( GLenum plane, const GLdouble *eq ) 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 ); + _mesa_update_clip_plane(ctx, p); } if (ctx->Driver.ClipPlane) |