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(GLsizei count, GLuint *samplers); 100 void GLAPIENTRY 101 _mesa_CreateSamplers(GLsizei count, GLuint *samplers); 102 void GLAPIENTRY 103 _mesa_DeleteSamplers(GLsizei count, const GLuint *samplers); 104 GLboolean GLAPIENTRY 105 _mesa_IsSampler(GLuint sampler); 106 void GLAPIENTRY 107 _mesa_BindSampler(GLuint unit, GLuint sampler); 108 void GLAPIENTRY 109 _mesa_BindSamplers(GLuint first, GLsizei count, const GLuint *samplers); 110 void GLAPIENTRY 111 _mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param); 112 void GLAPIENTRY 113 _mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param); 114 void GLAPIENTRY 115 _mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params); 116 void GLAPIENTRY 117 _mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params); 118 void GLAPIENTRY 119 _mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params); 120 void GLAPIENTRY 121 _mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params); 122 void GLAPIENTRY 123 _mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params); 124 void GLAPIENTRY 125 _mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params); 126 void GLAPIENTRY 127 _mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params); 128 void GLAPIENTRY 129 _mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params); 130 131 #ifdef __cplusplus 132 } 133 #endif 134 135 #endif /* SAMPLEROBJ_H */ 136
