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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2011 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SAMPLEROBJ_H
#define SAMPLEROBJ_H
struct dd_function_table;
static inline struct gl_sampler_object *
_mesa_get_samplerobj(struct gl_context *ctx, GLuint unit)
{
if (ctx->Texture.Unit[unit].Sampler)
return ctx->Texture.Unit[unit].Sampler;
else if (ctx->Texture.Unit[unit]._Current)
return &ctx->Texture.Unit[unit]._Current->Sampler;
else
return NULL;
}
/** Does the given filter state do mipmap filtering? */
static inline GLboolean
_mesa_is_mipmap_filter(const struct gl_sampler_object *samp)
{
return samp->MinFilter != GL_NEAREST && samp->MinFilter != GL_LINEAR;
}
extern void
_mesa_reference_sampler_object_(struct gl_context *ctx,
struct gl_sampler_object **ptr,
struct gl_sampler_object *samp);
static inline void
_mesa_reference_sampler_object(struct gl_context *ctx,
struct gl_sampler_object **ptr,
struct gl_sampler_object *samp)
{
if (*ptr != samp)
_mesa_reference_sampler_object_(ctx, ptr, samp);
}
extern struct gl_sampler_object *
_mesa_lookup_samplerobj(struct gl_context *ctx, GLuint name);
extern struct gl_sampler_object *
_mesa_new_sampler_object(struct gl_context *ctx, GLuint name);
extern void
_mesa_init_sampler_object_functions(struct dd_function_table *driver);
void GLAPIENTRY
_mesa_GenSamplers(GLsizei count, GLuint *samplers);
void GLAPIENTRY
_mesa_DeleteSamplers(GLsizei count, const GLuint *samplers);
GLboolean GLAPIENTRY
_mesa_IsSampler(GLuint sampler);
void GLAPIENTRY
_mesa_BindSampler(GLuint unit, GLuint sampler);
void GLAPIENTRY
_mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param);
void GLAPIENTRY
_mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param);
void GLAPIENTRY
_mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params);
void GLAPIENTRY
_mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params);
void GLAPIENTRY
_mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params);
void GLAPIENTRY
_mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params);
void GLAPIENTRY
_mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params);
void GLAPIENTRY
_mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params);
void GLAPIENTRY
_mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params);
void GLAPIENTRY
_mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params);
#endif /* SAMPLEROBJ_H */
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