1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
32 #include "pipe/p_context.h"
33 #include "util/u_sampler.h"
35 #include "main/mtypes.h"
42 * Subclass of gl_texure_image.
44 struct st_texture_image
46 struct gl_texture_image base
;
48 /* These aren't stored in gl_texture_image
53 /* If stImage->pt != NULL, image data is stored here.
54 * Else if stImage->base.Data != NULL, image is stored there.
55 * Else there is no image data.
57 struct pipe_resource
*pt
;
59 struct pipe_transfer
*transfer
;
64 * Subclass of gl_texure_object.
66 struct st_texture_object
68 struct gl_texture_object base
; /* The "parent" object */
70 /* The texture must include at levels [0..lastLevel] once validated:
74 /** The size of the level=0 mipmap image */
75 GLuint width0
, height0
, depth0
;
77 /* On validation any active images held in main memory or in other
78 * textures will be copied to this texture and the old storage freed.
80 struct pipe_resource
*pt
;
82 /* Default sampler view attached to this texture object. Created lazily
85 struct pipe_sampler_view
*sampler_view
;
87 /* True if there is/was a surface bound to this texture object. It helps
88 * track whether the texture object is surface based or not.
90 GLboolean surface_based
;
94 static INLINE
struct st_texture_image
*
95 st_texture_image(struct gl_texture_image
*img
)
97 return (struct st_texture_image
*) img
;
100 static INLINE
struct st_texture_object
*
101 st_texture_object(struct gl_texture_object
*obj
)
103 return (struct st_texture_object
*) obj
;
107 static INLINE
struct pipe_resource
*
108 st_get_texobj_resource(struct gl_texture_object
*texObj
)
110 struct st_texture_object
*stObj
= st_texture_object(texObj
);
111 return stObj
? stObj
->pt
: NULL
;
115 static INLINE
struct pipe_resource
*
116 st_get_stobj_resource(struct st_texture_object
*stObj
)
118 return stObj
? stObj
->pt
: NULL
;
122 static INLINE
struct pipe_sampler_view
*
123 st_create_texture_sampler_view(struct pipe_context
*pipe
,
124 struct pipe_resource
*texture
)
126 struct pipe_sampler_view templ
;
128 u_sampler_view_default_template(&templ
, texture
, texture
->format
);
130 return pipe
->create_sampler_view(pipe
, texture
, &templ
);
134 static INLINE
struct pipe_sampler_view
*
135 st_create_texture_sampler_view_format(struct pipe_context
*pipe
,
136 struct pipe_resource
*texture
,
137 enum pipe_format format
)
139 struct pipe_sampler_view templ
;
141 u_sampler_view_default_template(&templ
, texture
, format
);
143 return pipe
->create_sampler_view(pipe
, texture
, &templ
);
147 static INLINE
struct pipe_sampler_view
*
148 st_get_texture_sampler_view(struct st_texture_object
*stObj
,
149 struct pipe_context
*pipe
)
151 if (!stObj
|| !stObj
->pt
) {
155 if (!stObj
->sampler_view
) {
156 stObj
->sampler_view
= st_create_texture_sampler_view(pipe
, stObj
->pt
);
159 return stObj
->sampler_view
;
163 extern struct pipe_resource
*
164 st_texture_create(struct st_context
*st
,
165 enum pipe_texture_target target
,
166 enum pipe_format format
,
175 /* Check if an image fits into an existing texture object.
178 st_texture_match_image(const struct pipe_resource
*pt
,
179 const struct gl_texture_image
*image
,
180 GLuint face
, GLuint level
);
182 /* Return a pointer to an image within a texture. Return image stride as
186 st_texture_image_map(struct st_context
*st
,
187 struct st_texture_image
*stImage
,
189 enum pipe_transfer_usage usage
,
190 unsigned x
, unsigned y
,
191 unsigned w
, unsigned h
);
194 st_texture_image_unmap(struct st_context
*st
,
195 struct st_texture_image
*stImage
);
198 /* Return pointers to each 2d slice within an image. Indexed by depth
201 extern const GLuint
*
202 st_texture_depth_offsets(struct pipe_resource
*pt
, GLuint level
);
205 /* Upload an image into a texture
208 st_texture_image_data(struct st_context
*st
,
209 struct pipe_resource
*dst
,
210 GLuint face
, GLuint level
, void *src
,
211 GLuint src_row_pitch
, GLuint src_image_pitch
);
214 /* Copy an image between two textures
217 st_texture_image_copy(struct pipe_context
*pipe
,
218 struct pipe_resource
*dst
, GLuint dstLevel
,
219 struct pipe_resource
*src
, GLuint srcLevel
,