Mesa (master): mesa: add ctx->Stencil._Enabled field
Brian Paul
brianp at kemper.freedesktop.org
Mon Mar 2 18:51:15 UTC 2009
Module: Mesa
Branch: master
Commit: f352a80aec10c3faf2d84e0b35d59b4edc0395ef
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f352a80aec10c3faf2d84e0b35d59b4edc0395ef
Author: Brian Paul <brianp at vmware.com>
Date: Mon Mar 2 11:46:49 2009 -0700
mesa: add ctx->Stencil._Enabled field
Only true if stenciling is enabled, and there's a stencil buffer.
---
src/mesa/main/mtypes.h | 1 +
src/mesa/main/state.c | 2 +-
src/mesa/main/stencil.c | 6 +++++-
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 1e42de8..f906de8 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1012,6 +1012,7 @@ struct gl_stencil_attrib
GLboolean Enabled; /**< Enabled flag */
GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */
GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */
+ GLboolean _Enabled; /**< Enabled and stencil buffer present */
GLboolean _TestTwoSide;
GLubyte _BackFace; /**< Current back stencil state (1 or 2) */
GLenum Function[3]; /**< Stencil function */
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index 0a39279..9ea932e 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -490,7 +490,7 @@ _mesa_update_state_locked( GLcontext *ctx )
if (new_state & _NEW_LIGHT)
_mesa_update_lighting( ctx );
- if (new_state & _NEW_STENCIL)
+ if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
_mesa_update_stencil( ctx );
#if FEATURE_pixel_transfer
diff --git a/src/mesa/main/stencil.c b/src/mesa/main/stencil.c
index e4a255d..15c98e2 100644
--- a/src/mesa/main/stencil.c
+++ b/src/mesa/main/stencil.c
@@ -536,7 +536,11 @@ _mesa_update_stencil(GLcontext *ctx)
{
const GLint face = ctx->Stencil._BackFace;
- ctx->Stencil._TestTwoSide =
+ ctx->Stencil._Enabled = (ctx->Stencil.Enabled &&
+ ctx->DrawBuffer->Visual.stencilBits > 0);
+
+ ctx->Stencil._TestTwoSide =
+ ctx->Stencil._Enabled &&
(ctx->Stencil.Function[0] != ctx->Stencil.Function[face] ||
ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] ||
ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] ||
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