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mesa: add ctx->Stencil._Enabled field

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Only true if stenciling is enabled, and there's a stencil buffer.
This commit is contained in:
Brian Paul
2009-03-02 11:46:49 -07:00
parent 2755a27d7d
commit f352a80aec
3 changed files with 7 additions and 2 deletions
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1
src/mesa/main/mtypes.h
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@@ -1012,6 +1012,7 @@ struct gl_stencil_attrib
GLboolean Enabled; /**< Enabled flag */ GLboolean Enabled; /**< Enabled flag */
GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */ GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */
GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */ GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */
GLboolean _Enabled; /**< Enabled and stencil buffer present */
GLboolean _TestTwoSide; GLboolean _TestTwoSide;
GLubyte _BackFace; /**< Current back stencil state (1 or 2) */ GLubyte _BackFace; /**< Current back stencil state (1 or 2) */
GLenum Function[3]; /**< Stencil function */ GLenum Function[3]; /**< Stencil function */

2
src/mesa/main/state.c
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@@ -490,7 +490,7 @@ _mesa_update_state_locked( GLcontext *ctx )
if (new_state & _NEW_LIGHT) if (new_state & _NEW_LIGHT)
_mesa_update_lighting( ctx ); _mesa_update_lighting( ctx );
if (new_state & _NEW_STENCIL) if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
_mesa_update_stencil( ctx ); _mesa_update_stencil( ctx );
#if FEATURE_pixel_transfer #if FEATURE_pixel_transfer

6
src/mesa/main/stencil.c
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@@ -536,7 +536,11 @@ _mesa_update_stencil(GLcontext *ctx)
{ {
const GLint face = ctx->Stencil._BackFace; 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.Function[0] != ctx->Stencil.Function[face] ||
ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] || ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] ||
ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] || ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] ||