diff options
| -rw-r--r-- | src/mesa/main/clip.c | 28 | ||||
| -rw-r--r-- | src/mesa/main/clip.h | 5 | ||||
| -rw-r--r-- | src/mesa/main/enable.c | 13 |
3 files changed, 21 insertions, 25 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) diff --git a/src/mesa/main/clip.h b/src/mesa/main/clip.h index 11431dcfce0..a8e6d768758 100644 --- a/src/mesa/main/clip.h +++ b/src/mesa/main/clip.h @@ -33,6 +33,11 @@ #include "glheader.h" +struct gl_context; + +extern void +_mesa_update_clip_plane(struct gl_context *ctx, GLuint plane); + extern void GLAPIENTRY _mesa_ClipPlane( GLenum plane, const GLdouble *equation ); diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c index f247092410b..60255d78eaf 100644 --- a/src/mesa/main/enable.c +++ b/src/mesa/main/enable.c @@ -29,6 +29,7 @@ #include "glheader.h" +#include "clip.h" #include "context.h" #include "enable.h" #include "light.h" @@ -310,17 +311,7 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state) if (state) { ctx->Transform.ClipPlanesEnabled |= (1 << p); - - if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top)) - _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); - - /* This derived state also calculated in clip.c and - * from _mesa_update_state() on changes to EyeUserPlane - * and ctx->ProjectionMatrix respectively. - */ - _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], - ctx->Transform.EyeUserPlane[p], - ctx->ProjectionMatrixStack.Top->inv ); + _mesa_update_clip_plane(ctx, p); } else { ctx->Transform.ClipPlanesEnabled &= ~(1 << p); |