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 *
_mesa_get_samplerobj(struct gl_context * ctx,GLuint unit)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
_mesa_is_mipmap_filter(const struct gl_sampler_object * samp)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
_mesa_reference_sampler_object(struct gl_context * ctx,struct gl_sampler_object ** ptr,struct gl_sampler_object * samp)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