2  * Mesa 3-D graphics library
4  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
29 #include "depth.h"
43 _mesa_ClearDepth( GLclampd depth )  in _mesa_ClearDepth()  argument
48       _mesa_debug(ctx, "glClearDepth(%f)\n", depth);  in _mesa_ClearDepth()
50    ctx->Depth.Clear = CLAMP( depth, 0.0, 1.0 );  in _mesa_ClearDepth()
55 _mesa_ClearDepthf( GLclampf depth )  in _mesa_ClearDepthf()  argument
57    _mesa_ClearDepth(depth);  in _mesa_ClearDepthf()
64    if (ctx->Depth.Func == func)  in depth_func()
84    FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH);  in depth_func()
85    ctx->NewDriverState |= ctx->DriverFlags.NewDepth;  in depth_func()
86    ctx->Depth.Func = func;  in depth_func()
89    if (ctx->Driver.DepthFunc)  in depth_func()
90       ctx->Driver.DepthFunc(ctx, func);  in depth_func()
124     * GL_TRUE indicates depth buffer writing is enabled (default)  in _mesa_DepthMask()
125     * GL_FALSE indicates depth buffer writing is disabled  in _mesa_DepthMask()
127    if (ctx->Depth.Mask == flag)  in _mesa_DepthMask()
130    FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH);  in _mesa_DepthMask()
131    ctx->NewDriverState |= ctx->DriverFlags.NewDepth;  in _mesa_DepthMask()
132    ctx->Depth.Mask = flag;  in _mesa_DepthMask()
135    if (ctx->Driver.DepthMask)  in _mesa_DepthMask()
136       ctx->Driver.DepthMask( ctx, flag );  in _mesa_DepthMask()
160    if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax)  in _mesa_DepthBoundsEXT()
163    FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH);  in _mesa_DepthBoundsEXT()
164    ctx->NewDriverState |= ctx->DriverFlags.NewDepth;  in _mesa_DepthBoundsEXT()
165    ctx->Depth.BoundsMin = (GLfloat) zmin;  in _mesa_DepthBoundsEXT()
166    ctx->Depth.BoundsMax = (GLfloat) zmax;  in _mesa_DepthBoundsEXT()
176  * Initialize the depth buffer attribute group in the given context.
181    ctx->Depth.Test = GL_FALSE;  in _mesa_init_depth()
182    ctx->Depth.Clear = 1.0;  in _mesa_init_depth()
183    ctx->Depth.Func = GL_LESS;  in _mesa_init_depth()
184    ctx->Depth.Mask = GL_TRUE;  in _mesa_init_depth()