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 /* TBOs require no validation -- they always just point to their BO. */
47 if (tObj
->Target
== GL_TEXTURE_BUFFER
)
50 /* We know/require this is true by now:
52 assert(intelObj
->base
._BaseComplete
);
54 /* What levels must the tree include at a minimum?
56 intel_update_max_level(intelObj
, sampler
);
57 firstImage
= intel_texture_image(tObj
->Image
[0][tObj
->BaseLevel
]);
59 /* Check tree can hold all active levels. Check tree matches
60 * target, imageFormat, etc.
62 * For pre-gen4, we have to match first_level == tObj->BaseLevel,
63 * because we don't have the control that gen4 does to make min/mag
64 * determination happen at a nonzero (hardware) baselevel. Because
65 * of that, we just always relayout on baselevel change.
68 (!intel_miptree_match_image(intelObj
->mt
, &firstImage
->base
.Base
) ||
69 intelObj
->mt
->first_level
!= tObj
->BaseLevel
||
70 intelObj
->mt
->last_level
< intelObj
->_MaxLevel
)) {
71 intel_miptree_release(&intelObj
->mt
);
75 /* May need to create a new tree:
78 intel_miptree_get_dimensions_for_image(&firstImage
->base
.Base
,
79 &width
, &height
, &depth
);
81 intelObj
->mt
= intel_miptree_create(intel
,
82 intelObj
->base
.Target
,
83 firstImage
->base
.Base
.TexFormat
,
95 /* Pull in any images not in the object's tree:
97 nr_faces
= (intelObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
98 for (face
= 0; face
< nr_faces
; face
++) {
99 for (i
= tObj
->BaseLevel
; i
<= intelObj
->_MaxLevel
; i
++) {
100 struct intel_texture_image
*intelImage
=
101 intel_texture_image(intelObj
->base
.Image
[face
][i
]);
102 /* skip too small size mipmap */
103 if (intelImage
== NULL
)
106 if (intelObj
->mt
!= intelImage
->mt
) {
107 intel_miptree_copy_teximage(intel
, intelImage
, intelObj
->mt
);
116 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
119 intel_tex_map_image_for_swrast(struct intel_context
*intel
,
120 struct intel_texture_image
*intel_image
,
125 struct intel_mipmap_tree
*mt
;
128 if (!intel_image
|| !intel_image
->mt
)
131 level
= intel_image
->base
.Base
.Level
;
132 face
= intel_image
->base
.Base
.Face
;
133 mt
= intel_image
->mt
;
135 if (mt
->target
== GL_TEXTURE_3D
||
136 mt
->target
== GL_TEXTURE_2D_ARRAY
||
137 mt
->target
== GL_TEXTURE_1D_ARRAY
) {
140 /* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't
141 * share code with the normal path.
143 for (i
= 0; i
< mt
->level
[level
].depth
; i
++) {
144 intel_miptree_get_image_offset(mt
, level
, face
, i
, &x
, &y
);
145 intel_image
->base
.ImageOffsets
[i
] = x
+ y
* mt
->region
->pitch
;
148 DBG("%s \n", __FUNCTION__
);
150 intel_image
->base
.Map
= intel_region_map(intel
, mt
->region
, mode
);
152 assert(intel_image
->base
.Base
.Depth
== 1);
153 intel_miptree_get_image_offset(mt
, level
, face
, 0, &x
, &y
);
155 DBG("%s: (%d,%d) -> (%d, %d)/%d\n",
156 __FUNCTION__
, face
, level
, x
, y
, mt
->region
->pitch
* mt
->cpp
);
158 intel_image
->base
.Map
= intel_region_map(intel
, mt
->region
, mode
) +
159 (x
+ y
* mt
->region
->pitch
) * mt
->cpp
;
162 intel_image
->base
.RowStride
= mt
->region
->pitch
;
166 intel_tex_unmap_image_for_swrast(struct intel_context
*intel
,
167 struct intel_texture_image
*intel_image
)
169 if (intel_image
&& intel_image
->mt
) {
170 intel_region_unmap(intel
, intel_image
->mt
->region
);
171 intel_image
->base
.Map
= NULL
;
176 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
179 intel_tex_map_images(struct intel_context
*intel
,
180 struct intel_texture_object
*intelObj
,
183 GLuint nr_faces
= (intelObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
186 DBG("%s\n", __FUNCTION__
);
188 for (i
= intelObj
->base
.BaseLevel
; i
<= intelObj
->_MaxLevel
; i
++) {
189 for (face
= 0; face
< nr_faces
; face
++) {
190 struct intel_texture_image
*intel_image
=
191 intel_texture_image(intelObj
->base
.Image
[face
][i
]);
193 intel_tex_map_image_for_swrast(intel
, intel_image
, mode
);
199 intel_tex_unmap_images(struct intel_context
*intel
,
200 struct intel_texture_object
*intelObj
)
202 GLuint nr_faces
= (intelObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
205 for (i
= intelObj
->base
.BaseLevel
; i
<= intelObj
->_MaxLevel
; i
++) {
206 for (face
= 0; face
< nr_faces
; face
++) {
207 struct intel_texture_image
*intel_image
=
208 intel_texture_image(intelObj
->base
.Image
[face
][i
]);
210 intel_tex_unmap_image_for_swrast(intel
, intel_image
);