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  1. /*
  2.  * Mesa 3-D graphics library
  3.  *
  4.  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the "Software"),
  8.  * to deal in the Software without restriction, including without limitation
  9.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10.  * and/or sell copies of the Software, and to permit persons to whom the
  11.  * Software is furnished to do so, subject to the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice shall be included
  14.  * in all copies or substantial portions of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20.  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21.  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22.  * 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
  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 & VARYING_BIT_COL1))
  70.       return GL_TRUE;
  71.  
  72.    return GL_FALSE;
  73. }
  74.  
  75. #endif
  76.