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new DD_Z_NEVER flag

This commit is contained in:
Keith Whitwell 1999-09-10 14:24:35 +00:00
parent f0f3815e4f
commit 6c8657fa5f
1 changed files with 12 additions and 3 deletions
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15
src/mesa/main/depth.c
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@ -1,4 +1,4 @@
/* $Id: depth.c,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
/* $Id: depth.c,v 1.2 1999/09/10 14:24:35 keithw Exp $ */
/*
* Mesa 3-D graphics library
@ -71,9 +71,7 @@ void gl_DepthFunc( GLcontext* ctx, GLenum func )
if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
fprintf(stderr, "glDepthFunc %s\n", gl_lookup_enum_by_nr(func));
switch (func) {
case GL_NEVER:
case GL_LESS: /* (default) pass if incoming z < stored z */
case GL_GEQUAL:
case GL_LEQUAL:
@ -84,6 +82,17 @@ void gl_DepthFunc( GLcontext* ctx, GLenum func )
if (ctx->Depth.Func != func) {
ctx->Depth.Func = func;
ctx->NewState |= NEW_RASTER_OPS;
ctx->TriangleCaps &= ~DD_Z_NEVER;
if (ctx->Driver.DepthFunc) {
(*ctx->Driver.DepthFunc)( ctx, func );
}
}
break;
case GL_NEVER:
if (ctx->Depth.Func != func) {
ctx->Depth.Func = func;
ctx->NewState |= NEW_RASTER_OPS;
ctx->TriangleCaps |= DD_Z_NEVER;
if (ctx->Driver.DepthFunc) {
(*ctx->Driver.DepthFunc)( ctx, func );
}