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 **************************************************************************/
28 #include "st_context.h"
29 #include "st_format.h"
30 #include "st_texture.h"
33 #include "pipe/p_state.h"
34 #include "pipe/p_context.h"
35 #include "pipe/p_defines.h"
36 #include "pipe/p_inlines.h"
37 #include "pipe/p_util.h"
38 #include "pipe/p_inlines.h"
39 #include "pipe/p_winsys.h"
42 #define DBG if(0) printf
46 target_to_target(GLenum target
)
49 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
50 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
51 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
52 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
53 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
54 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
55 return GL_TEXTURE_CUBE_MAP_ARB
;
63 st_texture_create(struct st_context
*st
,
66 GLenum internal_format
,
74 struct pipe_texture
*pt
= CALLOC_STRUCT(pipe_texture
);
76 assert(target
<= PIPE_TEXTURE_CUBE
);
78 DBG("%s target %s format %s level %d..%d\n", __FUNCTION__
,
79 _mesa_lookup_enum_by_nr(target
),
80 _mesa_lookup_enum_by_nr(internal_format
), first_level
, last_level
);
89 pt
->internal_format
= internal_format
;
90 pt
->first_level
= first_level
;
91 pt
->last_level
= last_level
;
92 pt
->width
[0] = width0
;
93 pt
->height
[0] = height0
;
94 pt
->depth
[0] = depth0
;
95 pt
->compressed
= compress_byte
? 1 : 0;
96 pt
->cpp
= pt
->compressed
? compress_byte
: st_sizeof_format(format
);
99 st
->pipe
->texture_create(st
->pipe
, &pt
);
107 /* Can the image be pulled into a unified mipmap texture. This mirrors
108 * the completeness test in a lot of ways.
110 * Not sure whether I want to pass gl_texture_image here.
113 st_texture_match_image(struct pipe_texture
*pt
,
114 struct gl_texture_image
*image
,
115 GLuint face
, GLuint level
)
117 /* Images with borders are never pulled into mipmap textures.
122 if (image
->InternalFormat
!= pt
->internal_format
||
123 image
->IsCompressed
!= pt
->compressed
)
126 /* Test image dimensions against the base level image adjusted for
127 * minification. This will also catch images not present in the
128 * texture, changed targets, etc.
130 if (image
->Width
!= pt
->width
[level
] ||
131 image
->Height
!= pt
->height
[level
] ||
132 image
->Depth
!= pt
->depth
[level
])
140 /* Although we use the image_offset[] array to store relative offsets
141 * to cube faces, Mesa doesn't know anything about this and expects
142 * each cube face to be treated as a separate image.
144 * These functions present that view to mesa:
147 st_texture_depth_offsets(struct pipe_texture
*pt
, GLuint level
)
149 static const GLuint zero
= 0;
151 if (pt
->target
!= PIPE_TEXTURE_3D
|| pt
->level
[level
].nr_images
== 1)
154 return pt
->level
[level
].image_offset
;
159 * Return the offset to the given mipmap texture image within the
160 * texture memory buffer, in bytes.
163 st_texture_image_offset(const struct pipe_texture
* pt
,
164 GLuint face
, GLuint level
)
166 if (pt
->target
== PIPE_TEXTURE_CUBE
)
167 return (pt
->level
[level
].level_offset
+
168 pt
->level
[level
].image_offset
[face
] * pt
->cpp
);
170 return pt
->level
[level
].level_offset
;
176 * Map a teximage in a mipmap texture.
177 * \param row_stride returns row stride in bytes
178 * \param image_stride returns image stride in bytes (for 3D textures).
179 * \return address of mapping
182 st_texture_image_map(struct st_context
*st
, struct st_texture_image
*stImage
,
185 struct pipe_texture
*pt
= stImage
->pt
;
186 DBG("%s \n", __FUNCTION__
);
188 stImage
->surface
= st
->pipe
->get_tex_surface(st
->pipe
, pt
, stImage
->face
,
189 stImage
->level
, zoffset
);
191 return pipe_surface_map(stImage
->surface
);
195 st_texture_image_unmap(struct st_texture_image
*stImage
)
197 DBG("%s\n", __FUNCTION__
);
199 pipe_surface_unmap(stImage
->surface
);
201 pipe_surface_reference(&stImage
->surface
, NULL
);
206 /* Upload data for a particular image.
209 st_texture_image_data(struct pipe_context
*pipe
,
210 struct pipe_texture
*dst
,
214 GLuint src_row_pitch
, GLuint src_image_pitch
)
216 GLuint depth
= dst
->depth
[level
];
219 const GLubyte
*srcUB
= src
;
220 struct pipe_surface
*dst_surface
;
222 DBG("%s\n", __FUNCTION__
);
223 for (i
= 0; i
< depth
; i
++) {
224 height
= dst
->height
[level
];
228 dst_surface
= pipe
->get_tex_surface(pipe
, dst
, face
, level
, i
);
230 pipe
->surface_data(pipe
, dst_surface
,
231 0, 0, /* dstx, dsty */
234 0, 0, /* source x, y */
235 dst
->width
[level
], height
); /* width, height */
237 pipe_surface_reference(&dst_surface
, NULL
);
239 srcUB
+= src_image_pitch
* dst
->cpp
;
243 /* Copy mipmap image between textures
246 st_texture_image_copy(struct pipe_context
*pipe
,
247 struct pipe_texture
*dst
,
248 GLuint face
, GLuint level
,
249 struct pipe_texture
*src
)
251 GLuint width
= src
->width
[level
];
252 GLuint height
= src
->height
[level
];
253 GLuint depth
= src
->depth
[level
];
254 struct pipe_surface
*src_surface
;
255 struct pipe_surface
*dst_surface
;
260 for (i
= 0; i
< depth
; i
++) {
261 dst_surface
= pipe
->get_tex_surface(pipe
, dst
, face
, level
, i
);
262 src_surface
= pipe
->get_tex_surface(pipe
, src
, face
, level
, i
);
264 pipe
->surface_copy(pipe
,
271 pipe_surface_reference(&dst_surface
, NULL
);
272 pipe_surface_reference(&src_surface
, NULL
);