hint.c revision 1207bf057aeea3376e5e0f03f789a5d67ed4d29d 
1/* $Id: hint.c,v 1.4 2000/05/23 20:10:50 brianp Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version:  3.3
6 *
7 * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27
28#ifdef PC_HEADER
29#include "all.h"
30#else
31#include "glheader.h"
32#include "enums.h"
33#include "context.h"
34#include "hint.h"
35#include "state.h"
36#endif
37
38
39
40void
41_mesa_Hint( GLenum target, GLenum mode )
42{
43   GET_CURRENT_CONTEXT(ctx);
44   (void) _mesa_try_Hint( ctx, target, mode );
45}
46
47
48GLboolean
49_mesa_try_Hint( GLcontext *ctx, GLenum target, GLenum mode )
50{
51   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, "glHint", GL_FALSE);
52
53   if (MESA_VERBOSE & VERBOSE_API)
54      fprintf(stderr, "glHint %s %d\n", gl_lookup_enum_by_nr(target), mode);
55
56   if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
57      gl_error(ctx, GL_INVALID_ENUM, "glHint(mode)");
58      return GL_FALSE;
59   }
60
61   switch (target) {
62      case GL_FOG_HINT:
63         ctx->Hint.Fog = mode;
64         break;
65      case GL_LINE_SMOOTH_HINT:
66         ctx->Hint.LineSmooth = mode;
67         break;
68      case GL_PERSPECTIVE_CORRECTION_HINT:
69         ctx->Hint.PerspectiveCorrection = mode;
70         break;
71      case GL_POINT_SMOOTH_HINT:
72         ctx->Hint.PointSmooth = mode;
73         break;
74      case GL_POLYGON_SMOOTH_HINT:
75         ctx->Hint.PolygonSmooth = mode;
76         break;
77      case GL_PREFER_DOUBLEBUFFER_HINT_PGI:
78      case GL_STRICT_DEPTHFUNC_HINT_PGI:
79         break;
80      case GL_STRICT_LIGHTING_HINT_PGI:
81         ctx->Hint.StrictLighting = mode;
82         break;
83      case GL_STRICT_SCISSOR_HINT_PGI:
84      case GL_FULL_STIPPLE_HINT_PGI:
85      case GL_NATIVE_GRAPHICS_BEGIN_HINT_PGI:
86      case GL_NATIVE_GRAPHICS_END_HINT_PGI:
87      case GL_CONSERVE_MEMORY_HINT_PGI:
88      case GL_RECLAIM_MEMORY_HINT_PGI:
89         break;
90      case GL_ALWAYS_FAST_HINT_PGI:
91         if (mode) {
92            ctx->Hint.AllowDrawWin = GL_TRUE;
93            ctx->Hint.AllowDrawFrg = GL_FALSE;
94            ctx->Hint.AllowDrawMem = GL_FALSE;
95         } else {
96            ctx->Hint.AllowDrawWin = GL_TRUE;
97            ctx->Hint.AllowDrawFrg = GL_TRUE;
98            ctx->Hint.AllowDrawMem = GL_TRUE;
99         }
100         break;
101      case GL_ALWAYS_SOFT_HINT_PGI:
102         ctx->Hint.AllowDrawWin = GL_TRUE;
103         ctx->Hint.AllowDrawFrg = GL_TRUE;
104         ctx->Hint.AllowDrawMem = GL_TRUE;
105         break;
106      case GL_ALLOW_DRAW_OBJ_HINT_PGI:
107         break;
108      case GL_ALLOW_DRAW_WIN_HINT_PGI:
109         ctx->Hint.AllowDrawWin = mode;
110         break;
111      case GL_ALLOW_DRAW_FRG_HINT_PGI:
112         ctx->Hint.AllowDrawFrg = mode;
113         break;
114      case GL_ALLOW_DRAW_MEM_HINT_PGI:
115         ctx->Hint.AllowDrawMem = mode;
116         break;
117      case GL_CLIP_NEAR_HINT_PGI:
118      case GL_CLIP_FAR_HINT_PGI:
119      case GL_WIDE_LINE_HINT_PGI:
120      case GL_BACK_NORMALS_HINT_PGI:
121      case GL_NATIVE_GRAPHICS_HANDLE_PGI:
122         break;
123
124      /* GL_EXT_clip_volume_hint */
125      case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:
126         ctx->Hint.ClipVolumeClipping = mode;
127         break;
128
129      /* GL_ARB_texture_compression */
130      case GL_TEXTURE_COMPRESSION_HINT_ARB:
131         if (ctx->Extensions.HaveTextureCompression) {
132            ctx->Hint.TextureCompression = mode;
133         }
134         else {
135            gl_error(ctx, GL_INVALID_ENUM, "glHint(target)");
136         }
137         break;
138
139      default:
140         gl_error(ctx, GL_INVALID_ENUM, "glHint(target)");
141         return GL_FALSE;
142   }
143
144   ctx->NewState |= NEW_ALL;   /* just to be safe */
145
146   if (ctx->Driver.Hint) {
147      (*ctx->Driver.Hint)( ctx, target, mode );
148   }
149
150   return GL_TRUE;
151}
152
153
154void
155_mesa_HintPGI( GLenum target, GLint mode )
156{
157   GET_CURRENT_CONTEXT(ctx);
158   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glHintPGI");
159
160   if (MESA_VERBOSE & VERBOSE_API)
161      fprintf(stderr, "glHintPGI %s %d\n", gl_lookup_enum_by_nr(target), mode);
162
163   if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
164      gl_error(ctx, GL_INVALID_ENUM, "glHintPGI(mode)");
165      return;
166   }
167
168   switch (target) {
169      case GL_PREFER_DOUBLEBUFFER_HINT_PGI:
170      case GL_STRICT_DEPTHFUNC_HINT_PGI:
171      case GL_STRICT_LIGHTING_HINT_PGI:
172      case GL_STRICT_SCISSOR_HINT_PGI:
173      case GL_FULL_STIPPLE_HINT_PGI:
174      case GL_NATIVE_GRAPHICS_BEGIN_HINT_PGI:
175      case GL_NATIVE_GRAPHICS_END_HINT_PGI:
176      case GL_CONSERVE_MEMORY_HINT_PGI:
177      case GL_RECLAIM_MEMORY_HINT_PGI:
178      case GL_ALWAYS_FAST_HINT_PGI:
179      case GL_ALWAYS_SOFT_HINT_PGI:
180      case GL_ALLOW_DRAW_OBJ_HINT_PGI:
181      case GL_ALLOW_DRAW_WIN_HINT_PGI:
182      case GL_ALLOW_DRAW_FRG_HINT_PGI:
183      case GL_ALLOW_DRAW_MEM_HINT_PGI:
184      case GL_CLIP_NEAR_HINT_PGI:
185      case GL_CLIP_FAR_HINT_PGI:
186      case GL_WIDE_LINE_HINT_PGI:
187      case GL_BACK_NORMALS_HINT_PGI:
188      case GL_NATIVE_GRAPHICS_HANDLE_PGI:
189         (void) _mesa_try_Hint(ctx, target, (GLenum) mode);
190         break;
191      default:
192         gl_error( ctx, GL_INVALID_ENUM, "glHintPGI(target)" );
193         return;
194   }
195}
196
197
198