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add missing _mesa_StencilFuncSeparateATI function

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This commit is contained in:
Roland Scheidegger 2007-10-30 14:09:17 +01:00
parent cf9b07ea34
commit 04097f5583
2 changed files with 77 additions and 0 deletions
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75
src/mesa/main/stencil.c
View file

@ -82,6 +82,81 @@ _mesa_ClearStencil( GLint s )
}
/**
* Set the function and reference value for stencil testing.
*
* \param frontfunc front test function.
* \param backfunc back test function.
* \param ref front and back reference value.
* \param mask front and back bitmask.
*
* \sa glStencilFunc().
*
* Verifies the parameters and updates the respective values in
* __GLcontextRec::Stencil. On change flushes the vertices and notifies the
* driver via the dd_function_table::StencilFunc callback.
*/
void GLAPIENTRY
_mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask )
{
GET_CURRENT_CONTEXT(ctx);
const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (frontfunc) {
case GL_NEVER:
case GL_LESS:
case GL_LEQUAL:
case GL_GREATER:
case GL_GEQUAL:
case GL_EQUAL:
case GL_NOTEQUAL:
case GL_ALWAYS:
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glStencilFuncSeparateATI (0x%04x)", frontfunc );
return;
}
switch (backfunc) {
case GL_NEVER:
case GL_LESS:
case GL_LEQUAL:
case GL_GREATER:
case GL_GEQUAL:
case GL_EQUAL:
case GL_NOTEQUAL:
case GL_ALWAYS:
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glStencilFuncSeparateATI (0x%04x)", backfunc );
return;
}
ref = CLAMP( ref, 0, stencilMax );
/* set both front and back state */
if (ctx->Stencil.Function[0] == frontfunc &&
ctx->Stencil.Function[1] == backfunc &&
ctx->Stencil.ValueMask[0] == mask &&
ctx->Stencil.ValueMask[1] == mask &&
ctx->Stencil.Ref[0] == ref &&
ctx->Stencil.Ref[1] == ref)
return;
FLUSH_VERTICES(ctx, _NEW_STENCIL);
ctx->Stencil.Function[0] = frontfunc;
ctx->Stencil.Function[1] = backfunc;
ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref;
ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
if (ctx->Driver.StencilFuncSeparate) {
ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
frontfunc, ref, mask);
ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
backfunc, ref, mask);
}
}
/**
* Set the function and reference value for stencil testing.
*

2
src/mesa/main/stencil.h
View file

@ -62,6 +62,8 @@ _mesa_StencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
extern void GLAPIENTRY
_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
extern void GLAPIENTRY
_mesa_StencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask);
extern void GLAPIENTRY
_mesa_StencilMaskSeparate(GLenum face, GLuint mask);