diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/depth.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/depth.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/depth.c b/nx-X11/extras/Mesa/src/mesa/main/depth.c deleted file mode 100644 index aca471a06..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/depth.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 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 "hash.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_DepthFunc( GLenum func ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _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|VERBOSE_TEXTURE)) - _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( GLcontext * 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; - - /* XXX this is now per-framebuffer state */ -#if 00 - /* 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) - 1; - 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 */ -#endif -} |