1 #include "main/mtypes.h"
2 #include "main/macros.h"
3 #include "main/samplerobj.h"
4 #include "main/teximage.h"
5 #include "main/texobj.h"
6
7 #include "intel_context.h"
8 #include "intel_mipmap_tree.h"
9 #include "intel_blit.h"
10 #include "intel_tex.h"
11 #include "intel_tex_layout.h"
12
13 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
14
15 /**
16 * When validating, we only care about the texture images that could
17 * be seen, so for non-mipmapped modes we want to ignore everything
18 * but BaseLevel.
19 */
20 static void
intel_update_max_level(struct intel_texture_object * intelObj,struct gl_sampler_object * sampler)21 intel_update_max_level(struct intel_texture_object *intelObj,
22 struct gl_sampler_object *sampler)
23 {
24 struct gl_texture_object *tObj = &intelObj->base;
25 int maxlevel;
26
27 if (sampler->Attrib.MinFilter == GL_NEAREST ||
28 sampler->Attrib.MinFilter == GL_LINEAR) {
29 maxlevel = tObj->Attrib.BaseLevel;
30 } else {
31 maxlevel = tObj->_MaxLevel;
32 }
33
34 if (intelObj->_MaxLevel != maxlevel) {
35 intelObj->_MaxLevel = maxlevel;
36 intelObj->needs_validate = true;
37 }
38 }
39
40 /*
41 */
42 GLuint
intel_finalize_mipmap_tree(struct intel_context * intel,GLuint unit)43 intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit)
44 {
45 struct gl_context *ctx = &intel->ctx;
46 struct gl_texture_object *tObj = intel->ctx.Texture.Unit[unit]._Current;
47 struct intel_texture_object *intelObj = intel_texture_object(tObj);
48 struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
49 GLuint face, i;
50 GLuint nr_faces = 0;
51 struct intel_texture_image *firstImage;
52 int width, height, depth;
53
54 /* TBOs require no validation -- they always just point to their BO. */
55 if (tObj->Target == GL_TEXTURE_BUFFER)
56 return true;
57
58 /* We know/require this is true by now:
59 */
60 assert(intelObj->base._BaseComplete);
61
62 /* What levels must the tree include at a minimum?
63 */
64 intel_update_max_level(intelObj, sampler);
65 if (intelObj->mt && intelObj->mt->first_level != tObj->Attrib.BaseLevel)
66 intelObj->needs_validate = true;
67
68 if (!intelObj->needs_validate)
69 return true;
70
71 firstImage = intel_texture_image(tObj->Image[0][tObj->Attrib.BaseLevel]);
72
73 /* Check tree can hold all active levels. Check tree matches
74 * target, imageFormat, etc.
75 *
76 * For pre-gen4, we have to match first_level == tObj->BaseLevel,
77 * because we don't have the control that gen4 does to make min/mag
78 * determination happen at a nonzero (hardware) baselevel. Because
79 * of that, we just always relayout on baselevel change.
80 */
81 if (intelObj->mt &&
82 (!intel_miptree_match_image(intelObj->mt, &firstImage->base.Base) ||
83 intelObj->mt->first_level != tObj->Attrib.BaseLevel ||
84 intelObj->mt->last_level < intelObj->_MaxLevel)) {
85 intel_miptree_release(&intelObj->mt);
86 }
87
88
89 /* May need to create a new tree:
90 */
91 if (!intelObj->mt) {
92 intel_miptree_get_dimensions_for_image(&firstImage->base.Base,
93 &width, &height, &depth);
94
95 perf_debug("Creating new %s %dx%dx%d %d..%d miptree to handle finalized "
96 "texture miptree.\n",
97 _mesa_get_format_name(firstImage->base.Base.TexFormat),
98 width, height, depth, tObj->Attrib.BaseLevel, intelObj->_MaxLevel);
99
100 intelObj->mt = intel_miptree_create(intel,
101 intelObj->base.Target,
102 firstImage->base.Base.TexFormat,
103 tObj->Attrib.BaseLevel,
104 intelObj->_MaxLevel,
105 width,
106 height,
107 depth,
108 true,
109 INTEL_MIPTREE_TILING_ANY);
110 if (!intelObj->mt)
111 return false;
112 }
113
114 /* Pull in any images not in the object's tree:
115 */
116 nr_faces = _mesa_num_tex_faces(intelObj->base.Target);
117 for (face = 0; face < nr_faces; face++) {
118 for (i = tObj->Attrib.BaseLevel; i <= intelObj->_MaxLevel; i++) {
119 struct intel_texture_image *intelImage =
120 intel_texture_image(intelObj->base.Image[face][i]);
121 /* skip too small size mipmap */
122 if (intelImage == NULL)
123 break;
124
125 if (intelObj->mt != intelImage->mt) {
126 intel_miptree_copy_teximage(intel, intelImage, intelObj->mt,
127 false /* invalidate */);
128 }
129
130 /* After we're done, we'd better agree that our layout is
131 * appropriate, or we'll end up hitting this function again on the
132 * next draw
133 */
134 assert(intel_miptree_match_image(intelObj->mt, &intelImage->base.Base));
135 }
136 }
137
138 intelObj->needs_validate = false;
139
140 return true;
141 }
142