libX11 mesa git update 9 Feb 2011

1 files changed, 174 insertions, 168 deletions

diff --git a/mesalib/src/mesa/main/depth.c b/mesalib/src/mesa/main/depth.c
index fe1380e71..52c69a6bc 100644
--- a/mesalib/src/mesa/main/depth.c
+++ b/mesalib/src/mesa/main/depth.c
@@ -1,168 +1,174 @@
-/*

- * Mesa 3-D graphics library

- * Version:  7.1

- *

- * 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"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice and this permission notice shall be included

- * in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- */

-

-

-#include "glheader.h"

-#include "imports.h"

-#include "context.h"

-#include "depth.h"

-#include "enums.h"

-#include "macros.h"

-#include "mtypes.h"

-

-

-/**********************************************************************/

-/*****                          API Functions                     *****/

-/**********************************************************************/

-

-

-

-void GLAPIENTRY

-_mesa_ClearDepth( GLclampd depth )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   depth = CLAMP( depth, 0.0, 1.0 );

-

-   if (ctx->Depth.Clear == depth)

-      return;

-

-   FLUSH_VERTICES(ctx, _NEW_DEPTH);

-   ctx->Depth.Clear = depth;

-   if (ctx->Driver.ClearDepth)

-      (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );

-}

-

-

-void GLAPIENTRY

-_mesa_ClearDepthf( GLclampf depth )

-{

-   _mesa_ClearDepth(depth);

-}

-

-

-void GLAPIENTRY

-_mesa_DepthFunc( GLenum func )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (MESA_VERBOSE & VERBOSE_API)

-      _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));

-

-   switch (func) {

-   case GL_LESS:    /* (default) pass if incoming z < stored z */

-   case GL_GEQUAL:

-   case GL_LEQUAL:

-   case GL_GREATER:

-   case GL_NOTEQUAL:

-   case GL_EQUAL:

-   case GL_ALWAYS:

-   case GL_NEVER:

-      break;

-   default:

-      _mesa_error( ctx, GL_INVALID_ENUM, "glDepth.Func" );

-      return;

-   }

-

-   if (ctx->Depth.Func == func)

-      return;

-

-   FLUSH_VERTICES(ctx, _NEW_DEPTH);

-   ctx->Depth.Func = func;

-

-   if (ctx->Driver.DepthFunc)

-      ctx->Driver.DepthFunc( ctx, func );

-}

-

-

-

-void GLAPIENTRY

-_mesa_DepthMask( GLboolean flag )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (MESA_VERBOSE & VERBOSE_API)

-      _mesa_debug(ctx, "glDepthMask %d\n", flag);

-

-   /*

-    * GL_TRUE indicates depth buffer writing is enabled (default)

-    * GL_FALSE indicates depth buffer writing is disabled

-    */

-   if (ctx->Depth.Mask == flag)

-      return;

-

-   FLUSH_VERTICES(ctx, _NEW_DEPTH);

-   ctx->Depth.Mask = flag;

-

-   if (ctx->Driver.DepthMask)

-      ctx->Driver.DepthMask( ctx, flag );

-}

-

-

-

-/**

- * Specified by the GL_EXT_depth_bounds_test extension.

- */

-void GLAPIENTRY

-_mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (zmin > zmax) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glDepthBoundsEXT(zmin > zmax)");

-      return;

-   }

-

-   zmin = CLAMP(zmin, 0.0, 1.0);

-   zmax = CLAMP(zmax, 0.0, 1.0);

-

-   if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax)

-      return;

-

-   FLUSH_VERTICES(ctx, _NEW_DEPTH);

-   ctx->Depth.BoundsMin = (GLfloat) zmin;

-   ctx->Depth.BoundsMax = (GLfloat) zmax;

-}

-

-

-/**********************************************************************/

-/*****                      Initialization                        *****/

-/**********************************************************************/

-

-

-/**

- * Initialize the depth buffer attribute group in the given context.

- */

-void

-_mesa_init_depth(struct gl_context *ctx)

-{

-   ctx->Depth.Test = GL_FALSE;

-   ctx->Depth.Clear = 1.0;

-   ctx->Depth.Func = GL_LESS;

-   ctx->Depth.Mask = GL_TRUE;

-}

+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * 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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "depth.h"
+#include "enums.h"
+#include "macros.h"
+#include "mtypes.h"
+
+
+/**********************************************************************/
+/*****                          API Functions                     *****/
+/**********************************************************************/
+
+
+
+void GLAPIENTRY
+_mesa_ClearDepth( GLclampd depth )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glClearDepth(%f)\n", depth);
+
+   depth = CLAMP( depth, 0.0, 1.0 );
+
+   if (ctx->Depth.Clear == depth)
+      return;
+
+   FLUSH_VERTICES(ctx, _NEW_DEPTH);
+   ctx->Depth.Clear = depth;
+   if (ctx->Driver.ClearDepth)
+      (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
+}
+
+
+void GLAPIENTRY
+_mesa_ClearDepthf( GLclampf depth )
+{
+   _mesa_ClearDepth(depth);
+}
+
+
+void GLAPIENTRY
+_mesa_DepthFunc( GLenum func )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));
+
+   switch (func) {
+   case GL_LESS:    /* (default) pass if incoming z < stored z */
+   case GL_GEQUAL:
+   case GL_LEQUAL:
+   case GL_GREATER:
+   case GL_NOTEQUAL:
+   case GL_EQUAL:
+   case GL_ALWAYS:
+   case GL_NEVER:
+      break;
+   default:
+      _mesa_error( ctx, GL_INVALID_ENUM, "glDepth.Func" );
+      return;
+   }
+
+   if (ctx->Depth.Func == func)
+      return;
+
+   FLUSH_VERTICES(ctx, _NEW_DEPTH);
+   ctx->Depth.Func = func;
+
+   if (ctx->Driver.DepthFunc)
+      ctx->Driver.DepthFunc( ctx, func );
+}
+
+
+
+void GLAPIENTRY
+_mesa_DepthMask( GLboolean flag )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glDepthMask %d\n", flag);
+
+   /*
+    * GL_TRUE indicates depth buffer writing is enabled (default)
+    * GL_FALSE indicates depth buffer writing is disabled
+    */
+   if (ctx->Depth.Mask == flag)
+      return;
+
+   FLUSH_VERTICES(ctx, _NEW_DEPTH);
+   ctx->Depth.Mask = flag;
+
+   if (ctx->Driver.DepthMask)
+      ctx->Driver.DepthMask( ctx, flag );
+}
+
+
+
+/**
+ * Specified by the GL_EXT_depth_bounds_test extension.
+ */
+void GLAPIENTRY
+_mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glDepthBounds(%f, %f)\n", zmin, zmax);
+
+   if (zmin > zmax) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glDepthBoundsEXT(zmin > zmax)");
+      return;
+   }
+
+   zmin = CLAMP(zmin, 0.0, 1.0);
+   zmax = CLAMP(zmax, 0.0, 1.0);
+
+   if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax)
+      return;
+
+   FLUSH_VERTICES(ctx, _NEW_DEPTH);
+   ctx->Depth.BoundsMin = (GLfloat) zmin;
+   ctx->Depth.BoundsMax = (GLfloat) zmax;
+}
+
+
+/**********************************************************************/
+/*****                      Initialization                        *****/
+/**********************************************************************/
+
+
+/**
+ * Initialize the depth buffer attribute group in the given context.
+ */
+void
+_mesa_init_depth(struct gl_context *ctx)
+{
+   ctx->Depth.Test = GL_FALSE;
+   ctx->Depth.Clear = 1.0;
+   ctx->Depth.Func = GL_LESS;
+   ctx->Depth.Mask = GL_TRUE;
+}