diff options
| author | Ian Romanick <idr@freedesktop.org> | 2009-01-09 15:43:17 -0800 |
|---|---|---|
| committer | Ian Romanick <ian.d.romanick@intel.com> | 2009-01-23 09:49:29 -0800 |
| commit | dde7cb962860e72e1bf3175069767358cc5b3f3c (patch) | |
| tree | 64ca81d4f544ae7f28618c919af58a844f246de9 /src/mesa/swrast/s_stencil.c | |
| parent | af0e6336e9d7dc19d74950ce13b33e1fa1b2081d (diff) | |
Track two sets of back-face stencil state
Track separate back-face stencil state for OpenGL 2.0 /
GL_ATI_separate_stencil and GL_EXT_stencil_two_side. This allows all
three to be enabled in a driver. One set of state is set via the 2.0
or ATI functions and is used when STENCIL_TEST_TWO_SIDE_EXT is
disabled. The other is set by StencilFunc and StencilOp when the
active stencil face is set to BACK. The GL_EXT_stencil_two_side spec has
more details.
http://opengl.org/registry/specs/EXT/stencil_two_side.txt
Diffstat (limited to 'src/mesa/swrast/s_stencil.c')
| -rw-r--r-- | src/mesa/swrast/s_stencil.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_stencil.c b/src/mesa/swrast/s_stencil.c index c925922463..2e84ddec71 100644 --- a/src/mesa/swrast/s_stencil.c +++ b/src/mesa/swrast/s_stencil.c @@ -997,10 +997,12 @@ stencil_and_ztest_pixels( GLcontext *ctx, SWspan *span, GLuint face ) GLboolean _swrast_stencil_and_ztest_span(GLcontext *ctx, SWspan *span) { + const GLuint face = (span->facing == 0) ? 0 : ctx->Stencil._BackFace; + if (span->arrayMask & SPAN_XY) - return stencil_and_ztest_pixels(ctx, span, span->facing); + return stencil_and_ztest_pixels(ctx, span, face); else - return stencil_and_ztest_span(ctx, span, span->facing); + return stencil_and_ztest_span(ctx, span, face); } |