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  1. /*
  2.  * Mesa 3-D graphics library
  3.  *
  4.  * Copyright (C) 2011  VMware, Inc.  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.  
  27. #ifndef SAMPLEROBJ_H
  28. #define SAMPLEROBJ_H
  29.  
  30. struct dd_function_table;
  31.  
  32. static inline struct gl_sampler_object *
  33. _mesa_get_samplerobj(struct gl_context *ctx, GLuint unit)
  34. {
  35.    if (ctx->Texture.Unit[unit].Sampler)
  36.       return ctx->Texture.Unit[unit].Sampler;
  37.    else if (ctx->Texture.Unit[unit]._Current)
  38.       return &ctx->Texture.Unit[unit]._Current->Sampler;
  39.    else
  40.       return NULL;
  41. }
  42.  
  43.  
  44. /** Does the given filter state do mipmap filtering? */
  45. static inline GLboolean
  46. _mesa_is_mipmap_filter(const struct gl_sampler_object *samp)
  47. {
  48.    return samp->MinFilter != GL_NEAREST && samp->MinFilter != GL_LINEAR;
  49. }
  50.  
  51.  
  52. extern void
  53. _mesa_reference_sampler_object_(struct gl_context *ctx,
  54.                                 struct gl_sampler_object **ptr,
  55.                                 struct gl_sampler_object *samp);
  56.  
  57. static inline void
  58. _mesa_reference_sampler_object(struct gl_context *ctx,
  59.                                struct gl_sampler_object **ptr,
  60.                                struct gl_sampler_object *samp)
  61. {
  62.    if (*ptr != samp)
  63.       _mesa_reference_sampler_object_(ctx, ptr, samp);
  64. }
  65.  
  66. extern struct gl_sampler_object *
  67. _mesa_lookup_samplerobj(struct gl_context *ctx, GLuint name);
  68.  
  69. extern struct gl_sampler_object *
  70. _mesa_new_sampler_object(struct gl_context *ctx, GLuint name);
  71.  
  72. extern void
  73. _mesa_init_sampler_object_functions(struct dd_function_table *driver);
  74.  
  75. void GLAPIENTRY
  76. _mesa_GenSamplers(GLsizei count, GLuint *samplers);
  77. void GLAPIENTRY
  78. _mesa_DeleteSamplers(GLsizei count, const GLuint *samplers);
  79. GLboolean GLAPIENTRY
  80. _mesa_IsSampler(GLuint sampler);
  81. void GLAPIENTRY
  82. _mesa_BindSampler(GLuint unit, GLuint sampler);
  83. void GLAPIENTRY
  84. _mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param);
  85. void GLAPIENTRY
  86. _mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param);
  87. void GLAPIENTRY
  88. _mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params);
  89. void GLAPIENTRY
  90. _mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params);
  91. void GLAPIENTRY
  92. _mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params);
  93. void GLAPIENTRY
  94. _mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params);
  95. void GLAPIENTRY
  96. _mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params);
  97. void GLAPIENTRY
  98. _mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params);
  99. void GLAPIENTRY
  100. _mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params);
  101. void GLAPIENTRY
  102. _mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params);
  103.  
  104. #endif /* SAMPLEROBJ_H */
  105.