mesa: Change "BRIAN PAUL" to "THE AUTHORS" in license text.

[mesa.git] / src / mesa / main / depth.c

diff --git a/src/mesa/main/depth.c b/src/mesa/main/depth.c
index 6c60222096ab18313352dab01660f2ff465c7ef3..854ffbec16c40d2a317e81d7e068ea7945c25433 100644 (file)
--- a/src/mesa/main/depth.c
+++ b/src/mesa/main/depth.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
+ * Version:  7.1
  *
- * Copyright (C) 1999-2005  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"),
@@ -17,7 +17,7 @@
  * 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
+ * THE AUTHORS 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.
  */
@@ -28,7 +28,6 @@
 #include "context.h"
 #include "depth.h"
 #include "enums.h"
-#include "hash.h"
 #include "macros.h"
 #include "mtypes.h"
 
@@ -43,28 +42,27 @@ void GLAPIENTRY
 _mesa_ClearDepth( GLclampd depth )
 {
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   depth = CLAMP( depth, 0.0, 1.0 );
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glClearDepth(%f)\n", depth);
 
-   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 );
+   ctx->Depth.Clear = CLAMP( depth, 0.0, 1.0 );
 }
 
 
+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|VERBOSE_TEXTURE))
+   if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));
 
    switch (func) {
@@ -98,9 +96,8 @@ void GLAPIENTRY
 _mesa_DepthMask( GLboolean flag )
 {
    GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+   if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "glDepthMask %d\n", flag);
 
    /*
@@ -126,7 +123,9 @@ 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)");
@@ -153,34 +152,11 @@ _mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax )
 /**
  * Initialize the depth buffer attribute group in the given context.
  */
-void _mesa_init_depth( GLcontext * ctx )
+void
+_mesa_init_depth(struct gl_context *ctx)
 {
-   /* Depth buffer group */
    ctx->Depth.Test = GL_FALSE;
    ctx->Depth.Clear = 1.0;
    ctx->Depth.Func = GL_LESS;
    ctx->Depth.Mask = GL_TRUE;
-   ctx->Depth.OcclusionTest = GL_FALSE;
-
-   /* Z buffer stuff */
-   if (ctx->Visual.depthBits == 0) {
-      /* Special case.  Even if we don't have a depth buffer we need
-       * good values for DepthMax for Z vertex transformation purposes
-       * and for per-fragment fog computation.
-       */
-      ctx->DepthMax = 1 << 16;
-      ctx->DepthMaxF = (GLfloat) ctx->DepthMax;
-   }
-   else if (ctx->Visual.depthBits < 32) {
-      ctx->DepthMax = (1 << ctx->Visual.depthBits) - 1;
-      ctx->DepthMaxF = (GLfloat) ctx->DepthMax;
-   }
-   else {
-      /* Special case since shift values greater than or equal to the
-       * number of bits in the left hand expression's type are undefined.
-       */
-      ctx->DepthMax = 0xffffffff;
-      ctx->DepthMaxF = (GLfloat) ctx->DepthMax;
-   }
-   ctx->MRD = 1.0;  /* Minimum resolvable depth value, for polygon offset */
 }