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 33extern "C" { 34#endif 35 36struct dd_function_table; 37 38static 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? */ 51static 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 58extern void 59_mesa_reference_sampler_object_(struct gl_context *ctx, 60 struct gl_sampler_object **ptr, 61 struct gl_sampler_object *samp); 62 63static 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 72extern struct gl_sampler_object * 73_mesa_lookup_samplerobj(struct gl_context *ctx, GLuint name); 74 75extern struct gl_sampler_object * 76_mesa_new_sampler_object(struct gl_context *ctx, GLuint name); 77 78extern void 79_mesa_init_sampler_object_functions(struct dd_function_table *driver); 80 81extern void 82_mesa_set_sampler_wrap(struct gl_context *ctx, struct gl_sampler_object *samp, 83 GLenum s, GLenum t, GLenum r); 84 85extern void 86_mesa_set_sampler_filters(struct gl_context *ctx, 87 struct gl_sampler_object *samp, 88 GLenum min_filter, GLenum mag_filter); 89 90extern void 91_mesa_set_sampler_srgb_decode(struct gl_context *ctx, 92 struct gl_sampler_object *samp, GLenum param); 93 94extern void 95_mesa_bind_sampler(struct gl_context *ctx, GLuint unit, 96 struct gl_sampler_object *sampObj); 97 98void GLAPIENTRY 99_mesa_GenSamplers(GLsizei count, GLuint *samplers); 100void GLAPIENTRY 101_mesa_CreateSamplers(GLsizei count, GLuint *samplers); 102void GLAPIENTRY 103_mesa_DeleteSamplers(GLsizei count, const GLuint *samplers); 104GLboolean GLAPIENTRY 105_mesa_IsSampler(GLuint sampler); 106void GLAPIENTRY 107_mesa_BindSampler(GLuint unit, GLuint sampler); 108void GLAPIENTRY 109_mesa_BindSamplers(GLuint first, GLsizei count, const GLuint *samplers); 110void GLAPIENTRY 111_mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param); 112void GLAPIENTRY 113_mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param); 114void GLAPIENTRY 115_mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params); 116void GLAPIENTRY 117_mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params); 118void GLAPIENTRY 119_mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params); 120void GLAPIENTRY 121_mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params); 122void GLAPIENTRY 123_mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params); 124void GLAPIENTRY 125_mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params); 126void GLAPIENTRY 127_mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params); 128void GLAPIENTRY 129_mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params); 130 131#ifdef __cplusplus 132} 133#endif 134 135#endif /* SAMPLEROBJ_H */ 136