1 #include "main/mtypes.h"
2 #include "main/macros.h"
3 #include "main/samplerobj.h"
4 #include "main/texobj.h"
5
6 #include "intel_context.h"
7 #include "intel_mipmap_tree.h"
8 #include "intel_blit.h"
9 #include "intel_tex.h"
10 #include "intel_tex_layout.h"
11
12 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
13
14 /**
15 * When validating, we only care about the texture images that could
16 * be seen, so for non-mipmapped modes we want to ignore everything
17 * but BaseLevel.
18 */
19 static void
intel_update_max_level(struct intel_texture_object * intelObj,struct gl_sampler_object * sampler)20 intel_update_max_level(struct intel_texture_object *intelObj,
21 struct gl_sampler_object *sampler)
22 {
23 struct gl_texture_object *tObj = &intelObj->base;
24
25 if (sampler->MinFilter == GL_NEAREST ||
26 sampler->MinFilter == GL_LINEAR) {
27 intelObj->_MaxLevel = tObj->BaseLevel;
28 } else {
29 intelObj->_MaxLevel = tObj->_MaxLevel;
30 }
31 }
32
33 /*
34 */
35 GLuint
intel_finalize_mipmap_tree(struct intel_context * intel,GLuint unit)36 intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit)
37 {
38 struct gl_context *ctx = &intel->ctx;
39 struct gl_texture_object *tObj = intel->ctx.Texture.Unit[unit]._Current;
40 struct intel_texture_object *intelObj = intel_texture_object(tObj);
41 struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
42 GLuint face, i;
43 GLuint nr_faces = 0;
44 struct intel_texture_image *firstImage;
45 int width, height, depth;
46
47 /* TBOs require no validation -- they always just point to their BO. */
48 if (tObj->Target == GL_TEXTURE_BUFFER)
49 return true;
50
51 /* We know/require this is true by now:
52 */
53 assert(intelObj->base._BaseComplete);
54
55 /* What levels must the tree include at a minimum?
56 */
57 intel_update_max_level(intelObj, sampler);
58 firstImage = intel_texture_image(tObj->Image[0][tObj->BaseLevel]);
59
60 /* Check tree can hold all active levels. Check tree matches
61 * target, imageFormat, etc.
62 *
63 * For pre-gen4, we have to match first_level == tObj->BaseLevel,
64 * because we don't have the control that gen4 does to make min/mag
65 * determination happen at a nonzero (hardware) baselevel. Because
66 * of that, we just always relayout on baselevel change.
67 */
68 if (intelObj->mt &&
69 (!intel_miptree_match_image(intelObj->mt, &firstImage->base.Base) ||
70 intelObj->mt->first_level != tObj->BaseLevel ||
71 intelObj->mt->last_level < intelObj->_MaxLevel)) {
72 intel_miptree_release(&intelObj->mt);
73 }
74
75
76 /* May need to create a new tree:
77 */
78 if (!intelObj->mt) {
79 intel_miptree_get_dimensions_for_image(&firstImage->base.Base,
80 &width, &height, &depth);
81
82 intelObj->mt = intel_miptree_create(intel,
83 intelObj->base.Target,
84 firstImage->base.Base.TexFormat,
85 tObj->BaseLevel,
86 intelObj->_MaxLevel,
87 width,
88 height,
89 depth,
90 true,
91 0 /* num_samples */,
92 INTEL_MSAA_LAYOUT_NONE);
93 if (!intelObj->mt)
94 return false;
95 }
96
97 /* Pull in any images not in the object's tree:
98 */
99 nr_faces = _mesa_num_tex_faces(intelObj->base.Target);
100 for (face = 0; face < nr_faces; face++) {
101 for (i = tObj->BaseLevel; i <= intelObj->_MaxLevel; i++) {
102 struct intel_texture_image *intelImage =
103 intel_texture_image(intelObj->base.Image[face][i]);
104 /* skip too small size mipmap */
105 if (intelImage == NULL)
106 break;
107
108 if (intelObj->mt != intelImage->mt) {
109 intel_miptree_copy_teximage(intel, intelImage, intelObj->mt);
110 }
111 }
112 }
113
114 return true;
115 }
116
117 /**
118 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
119 */
120 static void
intel_tex_map_image_for_swrast(struct intel_context * intel,struct intel_texture_image * intel_image,GLbitfield mode)121 intel_tex_map_image_for_swrast(struct intel_context *intel,
122 struct intel_texture_image *intel_image,
123 GLbitfield mode)
124 {
125 int level;
126 int face;
127 struct intel_mipmap_tree *mt;
128 unsigned int x, y;
129
130 if (!intel_image || !intel_image->mt)
131 return;
132
133 level = intel_image->base.Base.Level;
134 face = intel_image->base.Base.Face;
135 mt = intel_image->mt;
136
137 for (int i = 0; i < mt->level[level].depth; i++)
138 intel_miptree_slice_resolve_depth(intel, mt, level, i);
139
140 if (mt->target == GL_TEXTURE_3D ||
141 mt->target == GL_TEXTURE_2D_ARRAY ||
142 mt->target == GL_TEXTURE_1D_ARRAY) {
143 int i;
144
145 /* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't
146 * share code with the normal path.
147 */
148 for (i = 0; i < mt->level[level].depth; i++) {
149 intel_miptree_get_image_offset(mt, level, face, i, &x, &y);
150 intel_image->base.ImageOffsets[i] = x + y * mt->region->pitch;
151 }
152
153 DBG("%s \n", __FUNCTION__);
154
155 intel_image->base.Map = intel_region_map(intel, mt->region, mode);
156 } else {
157 assert(intel_image->base.Base.Depth == 1);
158 intel_miptree_get_image_offset(mt, level, face, 0, &x, &y);
159
160 DBG("%s: (%d,%d) -> (%d, %d)/%d\n",
161 __FUNCTION__, face, level, x, y, mt->region->pitch * mt->cpp);
162
163 intel_image->base.Map = intel_region_map(intel, mt->region, mode) +
164 (x + y * mt->region->pitch) * mt->cpp;
165 }
166
167 intel_image->base.RowStride = mt->region->pitch;
168 }
169
170 static void
intel_tex_unmap_image_for_swrast(struct intel_context * intel,struct intel_texture_image * intel_image)171 intel_tex_unmap_image_for_swrast(struct intel_context *intel,
172 struct intel_texture_image *intel_image)
173 {
174 if (intel_image && intel_image->mt) {
175 intel_region_unmap(intel, intel_image->mt->region);
176 intel_image->base.Map = NULL;
177 }
178 }
179
180 /**
181 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
182 */
183 void
intel_tex_map_images(struct intel_context * intel,struct intel_texture_object * intelObj,GLbitfield mode)184 intel_tex_map_images(struct intel_context *intel,
185 struct intel_texture_object *intelObj,
186 GLbitfield mode)
187 {
188 GLuint nr_faces = _mesa_num_tex_faces(intelObj->base.Target);
189 int i, face;
190
191 DBG("%s\n", __FUNCTION__);
192
193 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) {
194 for (face = 0; face < nr_faces; face++) {
195 struct intel_texture_image *intel_image =
196 intel_texture_image(intelObj->base.Image[face][i]);
197
198 intel_tex_map_image_for_swrast(intel, intel_image, mode);
199 }
200 }
201 }
202
203 void
intel_tex_unmap_images(struct intel_context * intel,struct intel_texture_object * intelObj)204 intel_tex_unmap_images(struct intel_context *intel,
205 struct intel_texture_object *intelObj)
206 {
207 GLuint nr_faces = _mesa_num_tex_faces(intelObj->base.Target);
208 int i, face;
209
210 for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) {
211 for (face = 0; face < nr_faces; face++) {
212 struct intel_texture_image *intel_image =
213 intel_texture_image(intelObj->base.Image[face][i]);
214
215 intel_tex_unmap_image_for_swrast(intel, intel_image);
216 }
217 }
218 }
219