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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. #ifdef __cplusplus
  31. extern "C" {
  32. #endif
  33.  
  34.  
  35. #include "mtypes.h"
  36.  
  37.  
  38. struct dd_function_table;
  39.  
  40. static inline struct gl_sampler_object *
  41. _mesa_get_samplerobj(struct gl_context *ctx, GLuint unit)
  42. {
  43.    if (ctx->Texture.Unit[unit].Sampler)
  44.       return ctx->Texture.Unit[unit].Sampler;
  45.    else if (ctx->Texture.Unit[unit]._Current)
  46.       return &ctx->Texture.Unit[unit]._Current->Sampler;
  47.    else
  48.       return NULL;
  49. }
  50.  
  51.  
  52. /** Does the given filter state do mipmap filtering? */
  53. static inline GLboolean
  54. _mesa_is_mipmap_filter(const struct gl_sampler_object *samp)
  55. {
  56.    return samp->MinFilter != GL_NEAREST && samp->MinFilter != GL_LINEAR;
  57. }
  58.  
  59.  
  60. extern void
  61. _mesa_reference_sampler_object_(struct gl_context *ctx,
  62.                                 struct gl_sampler_object **ptr,
  63.                                 struct gl_sampler_object *samp);
  64.  
  65. static inline void
  66. _mesa_reference_sampler_object(struct gl_context *ctx,
  67.                                struct gl_sampler_object **ptr,
  68.                                struct gl_sampler_object *samp)
  69. {
  70.    if (*ptr != samp)
  71.       _mesa_reference_sampler_object_(ctx, ptr, samp);
  72. }
  73.  
  74. extern struct gl_sampler_object *
  75. _mesa_lookup_samplerobj(struct gl_context *ctx, GLuint name);
  76.  
  77. extern struct gl_sampler_object *
  78. _mesa_new_sampler_object(struct gl_context *ctx, GLuint name);
  79.  
  80. extern void
  81. _mesa_init_sampler_object_functions(struct dd_function_table *driver);
  82.  
  83. void GLAPIENTRY
  84. _mesa_GenSamplers(GLsizei count, GLuint *samplers);
  85. void GLAPIENTRY
  86. _mesa_CreateSamplers(GLsizei count, GLuint *samplers);
  87. void GLAPIENTRY
  88. _mesa_DeleteSamplers(GLsizei count, const GLuint *samplers);
  89. GLboolean GLAPIENTRY
  90. _mesa_IsSampler(GLuint sampler);
  91. void GLAPIENTRY
  92. _mesa_BindSampler(GLuint unit, GLuint sampler);
  93. void GLAPIENTRY
  94. _mesa_BindSamplers(GLuint first, GLsizei count, const GLuint *samplers);
  95. void GLAPIENTRY
  96. _mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param);
  97. void GLAPIENTRY
  98. _mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param);
  99. void GLAPIENTRY
  100. _mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params);
  101. void GLAPIENTRY
  102. _mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params);
  103. void GLAPIENTRY
  104. _mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params);
  105. void GLAPIENTRY
  106. _mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params);
  107. void GLAPIENTRY
  108. _mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params);
  109. void GLAPIENTRY
  110. _mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params);
  111. void GLAPIENTRY
  112. _mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params);
  113. void GLAPIENTRY
  114. _mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params);
  115.  
  116. #ifdef __cplusplus
  117. }
  118. #endif
  119.  
  120. #endif /* SAMPLEROBJ_H */
  121.