src/mesa/main/samplerobj.h

   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 #include "mtypes.h"
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 struct dd_function_table;
  37
  38 static inline struct gl_sampler_object *
  39 _mesa_get_samplerobj(struct gl_context *ctx, GLuint unit)
  40 {
  41    if (ctx->Texture.Unit[unit].Sampler)
  42       return ctx->Texture.Unit[unit].Sampler;
  43    else if (ctx->Texture.Unit[unit]._Current)
  44       return &ctx->Texture.Unit[unit]._Current->Sampler;
  45    else
  46       return NULL;
  47 }
  48
  49
  50 /** Does the given filter state do mipmap filtering? */
  51 static inline GLboolean
  52 _mesa_is_mipmap_filter(const struct gl_sampler_object *samp)
  53 {
  54    return samp->MinFilter != GL_NEAREST && samp->MinFilter != GL_LINEAR;
  55 }
  56
  57
  58 extern void
  59 _mesa_reference_sampler_object_(struct gl_context *ctx,
  60                                 struct gl_sampler_object **ptr,
  61                                 struct gl_sampler_object *samp);
  62
  63 static inline void
  64 _mesa_reference_sampler_object(struct gl_context *ctx,
  65                                struct gl_sampler_object **ptr,
  66                                struct gl_sampler_object *samp)
  67 {
  68    if (*ptr != samp)
  69       _mesa_reference_sampler_object_(ctx, ptr, samp);
  70 }
  71
  72 extern struct gl_sampler_object *
  73 _mesa_lookup_samplerobj(struct gl_context *ctx, GLuint name);
  74
  75 extern struct gl_sampler_object *
  76 _mesa_new_sampler_object(struct gl_context *ctx, GLuint name);
  77
  78 extern void
  79 _mesa_init_sampler_object_functions(struct dd_function_table *driver);
  80
  81 extern void
  82 _mesa_set_sampler_wrap(struct gl_context *ctx, struct gl_sampler_object *samp,
  83                        GLenum s, GLenum t, GLenum r);
  84
  85 extern void
  86 _mesa_set_sampler_filters(struct gl_context *ctx,
  87                           struct gl_sampler_object *samp,
  88                           GLenum min_filter, GLenum mag_filter);
  89
  90 extern void
  91 _mesa_set_sampler_srgb_decode(struct gl_context *ctx,
  92                               struct gl_sampler_object *samp, GLenum param);
  93
  94 extern void
  95 _mesa_bind_sampler(struct gl_context *ctx, GLuint unit,
  96                    struct gl_sampler_object *sampObj);
  97
  98 void GLAPIENTRY
  99 _mesa_GenSamplers_no_error(GLsizei count, GLuint *samplers);
 100
 101 void GLAPIENTRY
 102 _mesa_GenSamplers(GLsizei count, GLuint *samplers);
 103
 104 void GLAPIENTRY
 105 _mesa_CreateSamplers_no_error(GLsizei count, GLuint *samplers);
 106
 107 void GLAPIENTRY
 108 _mesa_CreateSamplers(GLsizei count, GLuint *samplers);
 109
 110 void GLAPIENTRY
 111 _mesa_DeleteSamplers_no_error(GLsizei count, const GLuint *samplers);
 112
 113 void GLAPIENTRY
 114 _mesa_DeleteSamplers(GLsizei count, const GLuint *samplers);
 115
 116 GLboolean GLAPIENTRY
 117 _mesa_IsSampler(GLuint sampler);
 118
 119 void GLAPIENTRY
 120 _mesa_BindSampler_no_error(GLuint unit, GLuint sampler);
 121
 122 void GLAPIENTRY
 123 _mesa_BindSampler(GLuint unit, GLuint sampler);
 124
 125 void GLAPIENTRY
 126 _mesa_BindSamplers_no_error(GLuint first, GLsizei count, const GLuint *samplers);
 127
 128 void GLAPIENTRY
 129 _mesa_BindSamplers(GLuint first, GLsizei count, const GLuint *samplers);
 130
 131 void GLAPIENTRY
 132 _mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param);
 133 void GLAPIENTRY
 134 _mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param);
 135 void GLAPIENTRY
 136 _mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params);
 137 void GLAPIENTRY
 138 _mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params);
 139 void GLAPIENTRY
 140 _mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params);
 141 void GLAPIENTRY
 142 _mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params);
 143 void GLAPIENTRY
 144 _mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params);
 145 void GLAPIENTRY
 146 _mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params);
 147 void GLAPIENTRY
 148 _mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params);
 149 void GLAPIENTRY
 150 _mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params);
 151
 152 #ifdef __cplusplus
 153 }
 154 #endif
 155
 156 #endif /* SAMPLEROBJ_H */