diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2005-09-13 02:59:53 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2005-09-13 02:59:53 +0000 |
| commit | 42c34efd23d7ad05df9f3c71f7d52dd259e179d8 (patch) | |
| tree | 79161c2cbe3801650843cc20ede7bdc3bdccd673 /src/mesa/main/attrib.c | |
| parent | bdf8441f808b7bd0a8fa10c59025c015db482a58 (diff) | |
OpenGL 2.0's two-sided stencil feature wasn't implemented correctly.
See comment near top of stencil.c for info about OpenGL 2.0 vs.
GL_EXT_stencil_two_side.
Diffstat (limited to 'src/mesa/main/attrib.c')
| -rw-r--r-- | src/mesa/main/attrib.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c index c58ff98b12..a9786db27a 100644 --- a/src/mesa/main/attrib.c +++ b/src/mesa/main/attrib.c @@ -1070,26 +1070,31 @@ _mesa_PopAttrib(void) break; case GL_STENCIL_BUFFER_BIT: { - GLint face; const struct gl_stencil_attrib *stencil; stencil = (const struct gl_stencil_attrib *) attr->data; _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled); _mesa_ClearStencil(stencil->Clear); - face = stencil->ActiveFace; if (ctx->Extensions.EXT_stencil_two_side) { - _mesa_set_enable(ctx, GL_STENCIL_TEST_TWO_SIDE_EXT, stencil->TestTwoSide); - face ^= 1; + _mesa_set_enable(ctx, GL_STENCIL_TEST_TWO_SIDE_EXT, + stencil->TestTwoSide); + _mesa_ActiveStencilFaceEXT(stencil->ActiveFace + ? GL_BACK : GL_FRONT); } - do { - _mesa_ActiveStencilFaceEXT(face); - _mesa_StencilFunc(stencil->Function[face], stencil->Ref[face], - stencil->ValueMask[face]); - _mesa_StencilMask(stencil->WriteMask[face]); - _mesa_StencilOp(stencil->FailFunc[face], - stencil->ZFailFunc[face], - stencil->ZPassFunc[face]); - face ^= 1; - } while (face != (stencil->ActiveFace ^ 1)); + /* front state */ + _mesa_StencilFunc(stencil->Function[0], stencil->Ref[0], + stencil->ValueMask[0]); + _mesa_StencilMask(stencil->WriteMask[0]); + _mesa_StencilOp(stencil->FailFunc[0], + stencil->ZFailFunc[0], + stencil->ZPassFunc[0]); + /* back state */ + _mesa_StencilFuncSeparate(GL_BACK, stencil->Function[1], + stencil->Ref[1], + stencil->ValueMask[1]); + _mesa_StencilMaskSeparate(GL_BACK, stencil->WriteMask[1]); + _mesa_StencilOpSeparate(GL_BACK, stencil->FailFunc[1], + stencil->ZFailFunc[1], + stencil->ZPassFunc[1]); } break; case GL_TRANSFORM_BIT: |