1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.3
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 #ifndef STATE_H
27 #define STATE_H
28
29 #include "mtypes.h"
30
31 extern void
32 _mesa_update_state(struct gl_context *ctx);
33
34 /* As above but can only be called between _mesa_lock_context_textures() and
35 * _mesa_unlock_context_textures().
36 */
37 extern void
38 _mesa_update_state_locked(struct gl_context *ctx);
39
40
41 extern void
42 _mesa_set_varying_vp_inputs(struct gl_context *ctx, GLbitfield64 varying_inputs);
43
44
45 extern void
46 _mesa_set_vp_override(struct gl_context *ctx, GLboolean flag);
47
48
49 /**
50 * Is the secondary color needed?
51 */
52 static inline GLboolean
_mesa_need_secondary_color(const struct gl_context * ctx)53 _mesa_need_secondary_color(const struct gl_context *ctx)
54 {
55 if (ctx->Light.Enabled &&
56 ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
57 return GL_TRUE;
58
59 if (ctx->Fog.ColorSumEnabled)
60 return GL_TRUE;
61
62 if (ctx->VertexProgram._Current &&
63 (ctx->VertexProgram._Current != ctx->VertexProgram._TnlProgram) &&
64 (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_COLOR1))
65 return GL_TRUE;
66
67 if (ctx->FragmentProgram._Current &&
68 (ctx->FragmentProgram._Current != ctx->FragmentProgram._TexEnvProgram) &&
69 (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL1))
70 return GL_TRUE;
71
72 return GL_FALSE;
73 }
74
75 #endif
76