1 #include "main/mtypes.h"
2 #include "main/macros.h"
3 #include "main/samplerobj.h"
5 #include "intel_context.h"
6 #include "intel_mipmap_tree.h"
7 #include "intel_blit.h"
9 #include "intel_tex_layout.h"
11 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
14 * When validating, we only care about the texture images that could
15 * be seen, so for non-mipmapped modes we want to ignore everything
19 intel_update_max_level(struct intel_texture_object
*intelObj
,
20 struct gl_sampler_object
*sampler
)
22 struct gl_texture_object
*tObj
= &intelObj
->base
;
24 if (sampler
->MinFilter
== GL_NEAREST
||
25 sampler
->MinFilter
== GL_LINEAR
) {
26 intelObj
->_MaxLevel
= tObj
->BaseLevel
;
28 intelObj
->_MaxLevel
= tObj
->_MaxLevel
;
35 intel_finalize_mipmap_tree(struct intel_context
*intel
, GLuint unit
)
37 struct gl_context
*ctx
= &intel
->ctx
;
38 struct gl_texture_object
*tObj
= intel
->ctx
.Texture
.Unit
[unit
]._Current
;
39 struct intel_texture_object
*intelObj
= intel_texture_object(tObj
);
40 struct gl_sampler_object
*sampler
= _mesa_get_samplerobj(ctx
, unit
);
43 struct intel_texture_image
*firstImage
;
44 int width
, height
, depth
;
46 /* We know/require this is true by now:
48 assert(intelObj
->base
._Complete
);
50 /* What levels must the tree include at a minimum?
52 intel_update_max_level(intelObj
, sampler
);
53 firstImage
= intel_texture_image(tObj
->Image
[0][tObj
->BaseLevel
]);
55 /* Check tree can hold all active levels. Check tree matches
56 * target, imageFormat, etc.
58 * For pre-gen4, we have to match first_level == tObj->BaseLevel,
59 * because we don't have the control that gen4 does to make min/mag
60 * determination happen at a nonzero (hardware) baselevel. Because
61 * of that, we just always relayout on baselevel change.
64 (!intel_miptree_match_image(intelObj
->mt
, &firstImage
->base
.Base
) ||
65 intelObj
->mt
->first_level
!= tObj
->BaseLevel
||
66 intelObj
->mt
->last_level
< intelObj
->_MaxLevel
)) {
67 intel_miptree_release(&intelObj
->mt
);
71 /* May need to create a new tree:
74 intel_miptree_get_dimensions_for_image(&firstImage
->base
.Base
,
75 &width
, &height
, &depth
);
77 intelObj
->mt
= intel_miptree_create(intel
,
78 intelObj
->base
.Target
,
79 firstImage
->base
.Base
.TexFormat
,
90 /* Pull in any images not in the object's tree:
92 nr_faces
= (intelObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
93 for (face
= 0; face
< nr_faces
; face
++) {
94 for (i
= tObj
->BaseLevel
; i
<= intelObj
->_MaxLevel
; i
++) {
95 struct intel_texture_image
*intelImage
=
96 intel_texture_image(intelObj
->base
.Image
[face
][i
]);
97 /* skip too small size mipmap */
98 if (intelImage
== NULL
)
100 /* Need to import images in main memory or held in other trees.
101 * If it's a render target, then its data isn't needed to be in
102 * the object tree (otherwise we'd be FBO incomplete), and we need
103 * to keep track of the image's MT as needing to be pulled in still,
104 * or we'll lose the rendering that's done to it.
106 if (intelObj
->mt
!= intelImage
->mt
&&
107 !intelImage
->used_as_render_target
) {
108 intel_miptree_copy_teximage(intel
, intelImage
, intelObj
->mt
);
117 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
120 intel_tex_map_image_for_swrast(struct intel_context
*intel
,
121 struct intel_texture_image
*intel_image
,
126 struct intel_mipmap_tree
*mt
;
129 if (!intel_image
|| !intel_image
->mt
)
132 level
= intel_image
->base
.Base
.Level
;
133 face
= intel_image
->base
.Base
.Face
;
134 mt
= intel_image
->mt
;
136 if (mt
->target
== GL_TEXTURE_3D
||
137 mt
->target
== GL_TEXTURE_2D_ARRAY
||
138 mt
->target
== GL_TEXTURE_1D_ARRAY
) {
141 /* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't
142 * share code with the normal path.
144 for (i
= 0; i
< mt
->level
[level
].depth
; i
++) {
145 intel_miptree_get_image_offset(mt
, level
, face
, i
, &x
, &y
);
146 intel_image
->base
.ImageOffsets
[i
] = x
+ y
* mt
->region
->pitch
;
149 DBG("%s \n", __FUNCTION__
);
151 intel_image
->base
.Map
= intel_region_map(intel
, mt
->region
, mode
);
153 assert(intel_image
->base
.Base
.Depth
== 1);
154 intel_miptree_get_image_offset(mt
, level
, face
, 0, &x
, &y
);
156 DBG("%s: (%d,%d) -> (%d, %d)/%d\n",
157 __FUNCTION__
, face
, level
, x
, y
, mt
->region
->pitch
* mt
->cpp
);
159 intel_image
->base
.Map
= intel_region_map(intel
, mt
->region
, mode
) +
160 (x
+ y
* mt
->region
->pitch
) * mt
->cpp
;
163 intel_image
->base
.RowStride
= mt
->region
->pitch
;
167 intel_tex_unmap_image_for_swrast(struct intel_context
*intel
,
168 struct intel_texture_image
*intel_image
)
170 if (intel_image
&& intel_image
->mt
) {
171 intel_region_unmap(intel
, intel_image
->mt
->region
);
172 intel_image
->base
.Map
= NULL
;
177 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
180 intel_tex_map_images(struct intel_context
*intel
,
181 struct intel_texture_object
*intelObj
,
184 GLuint nr_faces
= (intelObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
187 DBG("%s\n", __FUNCTION__
);
189 for (i
= intelObj
->base
.BaseLevel
; i
<= intelObj
->_MaxLevel
; i
++) {
190 for (face
= 0; face
< nr_faces
; face
++) {
191 struct intel_texture_image
*intel_image
=
192 intel_texture_image(intelObj
->base
.Image
[face
][i
]);
194 intel_tex_map_image_for_swrast(intel
, intel_image
, mode
);
200 intel_tex_unmap_images(struct intel_context
*intel
,
201 struct intel_texture_object
*intelObj
)
203 GLuint nr_faces
= (intelObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
206 for (i
= intelObj
->base
.BaseLevel
; i
<= intelObj
->_MaxLevel
; i
++) {
207 for (face
= 0; face
< nr_faces
; face
++) {
208 struct intel_texture_image
*intel_image
=
209 intel_texture_image(intelObj
->base
.Image
[face
][i
]);
211 intel_tex_unmap_image_for_swrast(intel
, intel_image
);