1 files changed, 131 insertions, 158 deletions

diff --git a/src/mesa/main/stencil.c b/src/mesa/main/stencil.c
index ca7f6eaf88b..17464310b1a 100644
--- a/src/mesa/main/stencil.c
+++ b/src/mesa/main/stencil.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.2
+ * Version:  7.1
  *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -53,6 +53,48 @@
 #include "mtypes.h"
 
 
+static GLboolean
+validate_stencil_op(GLcontext *ctx, GLenum op)
+{
+   switch (op) {
+   case GL_KEEP:
+   case GL_ZERO:
+   case GL_REPLACE:
+   case GL_INCR:
+   case GL_DECR:
+   case GL_INVERT:
+      return GL_TRUE;
+   case GL_INCR_WRAP_EXT:
+   case GL_DECR_WRAP_EXT:
+      if (ctx->Extensions.EXT_stencil_wrap) {
+         return GL_TRUE;
+      }
+      /* FALL-THROUGH */
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+static GLboolean
+validate_stencil_func(GLcontext *ctx, GLenum func)
+{
+   switch (func) {
+   case GL_NEVER:
+   case GL_LESS:
+   case GL_LEQUAL:
+   case GL_GREATER:
+   case GL_GEQUAL:
+   case GL_EQUAL:
+   case GL_NOTEQUAL:
+   case GL_ALWAYS:
+      return GL_TRUE;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
 /**
  * Set the clear value for the stencil buffer.
  *
@@ -103,34 +145,15 @@ _mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLui
    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;
+   if (!validate_stencil_func(ctx, frontfunc)) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glStencilFuncSeparateATI(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;
+   if (!validate_stencil_func(ctx, backfunc)) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glStencilFuncSeparateATI(backfunc)");
+      return;
    }
 
    ref = CLAMP( ref, 0, stencilMax );
@@ -157,6 +180,61 @@ _mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLui
 }
 
 
+void APIENTRY
+_mesa_StencilOpSeparateATI(GLenum face, GLenum sfail, GLenum zfail, GLenum zpass)
+{
+   GLboolean set = GL_FALSE;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (!validate_stencil_op(ctx, sfail)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparateATI(sfail)");
+      return;
+   }
+   if (!validate_stencil_op(ctx, zfail)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparateATI(zfail)");
+      return;
+   }
+   if (!validate_stencil_op(ctx, zpass)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparateATI(zpass)");
+      return;
+   }
+   if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparateATI(face)");
+      return;
+   }
+
+   if (face != GL_BACK) {
+      /* set front */
+      if (ctx->Stencil.ZFailFunc[0] != zfail ||
+          ctx->Stencil.ZPassFunc[0] != zpass ||
+          ctx->Stencil.FailFunc[0] != sfail){
+         FLUSH_VERTICES(ctx, _NEW_STENCIL);
+         ctx->Stencil.ZFailFunc[0] = zfail;
+         ctx->Stencil.ZPassFunc[0] = zpass;
+         ctx->Stencil.FailFunc[0] = sfail;
+         set = GL_TRUE;
+      }
+   }
+   if (face != GL_FRONT) {
+      /* set back */
+      if (ctx->Stencil.ZFailFunc[1] != zfail ||
+          ctx->Stencil.ZPassFunc[1] != zpass ||
+          ctx->Stencil.FailFunc[1] != sfail) {
+         FLUSH_VERTICES(ctx, _NEW_STENCIL);
+         ctx->Stencil.ZFailFunc[1] = zfail;
+         ctx->Stencil.ZPassFunc[1] = zpass;
+         ctx->Stencil.FailFunc[1] = sfail;
+         set = GL_TRUE;
+      }
+   }
+   if (set && ctx->Driver.StencilOpSeparate) {
+      ctx->Driver.StencilOpSeparate(ctx, face, sfail, zfail, zpass);
+   }
+}
+
+
+
 /**
  * Set the function and reference value for stencil testing.
  *
@@ -177,19 +255,9 @@ _mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
    const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   switch (func) {
-      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, "glStencilFunc (0x%04x)", func );
-         return;
+   if (!validate_stencil_func(ctx, func)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFunc(func)");
+      return;
    }
 
    ref = CLAMP( ref, 0, stencilMax );
@@ -293,59 +361,17 @@ _mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   switch (fail) {
-      case GL_KEEP:
-      case GL_ZERO:
-      case GL_REPLACE:
-      case GL_INCR:
-      case GL_DECR:
-      case GL_INVERT:
-         break;
-      case GL_INCR_WRAP_EXT:
-      case GL_DECR_WRAP_EXT:
-         if (ctx->Extensions.EXT_stencil_wrap) {
-            break;
-         }
-         /* FALL-THROUGH */
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp");
-         return;
+   if (!validate_stencil_op(ctx, fail)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(sfail)");
+      return;
    }
-   switch (zfail) {
-      case GL_KEEP:
-      case GL_ZERO:
-      case GL_REPLACE:
-      case GL_INCR:
-      case GL_DECR:
-      case GL_INVERT:
-         break;
-      case GL_INCR_WRAP_EXT:
-      case GL_DECR_WRAP_EXT:
-         if (ctx->Extensions.EXT_stencil_wrap) {
-            break;
-         }
-         /* FALL-THROUGH */
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp");
-         return;
+   if (!validate_stencil_op(ctx, zfail)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zfail)");
+      return;
    }
-   switch (zpass) {
-      case GL_KEEP:
-      case GL_ZERO:
-      case GL_REPLACE:
-      case GL_INCR:
-      case GL_DECR:
-      case GL_INVERT:
-         break;
-      case GL_INCR_WRAP_EXT:
-      case GL_DECR_WRAP_EXT:
-         if (ctx->Extensions.EXT_stencil_wrap) {
-            break;
-         }
-         /* FALL-THROUGH */
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp");
-         return;
+   if (!validate_stencil_op(ctx, zpass)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zpass)");
+      return;
    }
 
    if (ctx->Extensions.ATI_separate_stencil) {
@@ -428,59 +454,17 @@ _mesa_StencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
       return;
    }
 
-   switch (fail) {
-      case GL_KEEP:
-      case GL_ZERO:
-      case GL_REPLACE:
-      case GL_INCR:
-      case GL_DECR:
-      case GL_INVERT:
-         break;
-      case GL_INCR_WRAP_EXT:
-      case GL_DECR_WRAP_EXT:
-         if (ctx->Extensions.EXT_stencil_wrap) {
-            break;
-         }
-         /* FALL-THROUGH */
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(fail)");
-         return;
+   if (!validate_stencil_op(ctx, fail)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(sfail)");
+      return;
    }
-   switch (zfail) {
-      case GL_KEEP:
-      case GL_ZERO:
-      case GL_REPLACE:
-      case GL_INCR:
-      case GL_DECR:
-      case GL_INVERT:
-         break;
-      case GL_INCR_WRAP_EXT:
-      case GL_DECR_WRAP_EXT:
-         if (ctx->Extensions.EXT_stencil_wrap) {
-            break;
-         }
-         /* FALL-THROUGH */
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)");
-         return;
+   if (!validate_stencil_op(ctx, zfail)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)");
+      return;
    }
-   switch (zpass) {
-      case GL_KEEP:
-      case GL_ZERO:
-      case GL_REPLACE:
-      case GL_INCR:
-      case GL_DECR:
-      case GL_INVERT:
-         break;
-      case GL_INCR_WRAP_EXT:
-      case GL_DECR_WRAP_EXT:
-         if (ctx->Extensions.EXT_stencil_wrap) {
-            break;
-         }
-         /* FALL-THROUGH */
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)");
-         return;
+   if (!validate_stencil_op(ctx, zpass)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)");
+      return;
    }
 
    FLUSH_VERTICES(ctx, _NEW_STENCIL);
@@ -513,20 +497,9 @@ _mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
       _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)");
       return;
    }
-
-   switch (func) {
-      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, "glStencilFuncSeparate(func)");
-         return;
+   if (!validate_stencil_func(ctx, func)) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)");
+      return;
    }
 
    ref = CLAMP(ref, 0, stencilMax);