1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
#include "swrast/swrast.h"
#include "main/renderbuffer.h"
#include "main/texobj.h"
#include "main/teximage.h"
#include "main/mipmap.h"
#include "drivers/common/meta.h"
#include "intel_context.h"
#include "intel_mipmap_tree.h"
#include "intel_tex.h"
#include "intel_fbo.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
static struct gl_texture_image *
intelNewTextureImage(struct gl_context * ctx)
{
DBG("%s\n", __FUNCTION__);
(void) ctx;
return (struct gl_texture_image *) CALLOC_STRUCT(intel_texture_image);
}
static void
intelDeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img)
{
/* nothing special (yet) for intel_texture_image */
_mesa_delete_texture_image(ctx, img);
}
static struct gl_texture_object *
intelNewTextureObject(struct gl_context * ctx, GLuint name, GLenum target)
{
struct intel_texture_object *obj = CALLOC_STRUCT(intel_texture_object);
(void) ctx;
DBG("%s\n", __FUNCTION__);
if (obj == NULL)
return NULL;
_mesa_initialize_texture_object(&obj->base, name, target);
obj->needs_validate = true;
return &obj->base;
}
static void
intelDeleteTextureObject(struct gl_context *ctx,
struct gl_texture_object *texObj)
{
struct intel_texture_object *intelObj = intel_texture_object(texObj);
intel_miptree_release(&intelObj->mt);
_mesa_delete_texture_object(ctx, texObj);
}
static GLboolean
intel_alloc_texture_image_buffer(struct gl_context *ctx,
struct gl_texture_image *image)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intel_image = intel_texture_image(image);
struct gl_texture_object *texobj = image->TexObject;
struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
assert(image->Border == 0);
/* Because the driver uses AllocTextureImageBuffer() internally, it may end
* up mismatched with FreeTextureImageBuffer(), but that is safe to call
* multiple times.
*/
ctx->Driver.FreeTextureImageBuffer(ctx, image);
if (!_swrast_init_texture_image(image))
return false;
if (intel_texobj->mt &&
intel_miptree_match_image(intel_texobj->mt, image)) {
intel_miptree_reference(&intel_image->mt, intel_texobj->mt);
DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
__FUNCTION__, texobj, image->Level,
image->Width, image->Height, image->Depth, intel_texobj->mt);
} else {
intel_image->mt = intel_miptree_create_for_teximage(intel, intel_texobj,
intel_image,
false);
/* Even if the object currently has a mipmap tree associated
* with it, this one is a more likely candidate to represent the
* whole object since our level didn't fit what was there
* before, and any lower levels would fit into our miptree.
*/
intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
__FUNCTION__, texobj, image->Level,
image->Width, image->Height, image->Depth, intel_image->mt);
}
intel_texobj->needs_validate = true;
return true;
}
static void
intel_free_texture_image_buffer(struct gl_context * ctx,
struct gl_texture_image *texImage)
{
struct intel_texture_image *intelImage = intel_texture_image(texImage);
DBG("%s\n", __FUNCTION__);
intel_miptree_release(&intelImage->mt);
_swrast_free_texture_image_buffer(ctx, texImage);
}
/**
* Map texture memory/buffer into user space.
* Note: the region of interest parameters are ignored here.
* \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
* \param mapOut returns start of mapping of region of interest
* \param rowStrideOut returns row stride in bytes
*/
static void
intel_map_texture_image(struct gl_context *ctx,
struct gl_texture_image *tex_image,
GLuint slice,
GLuint x, GLuint y, GLuint w, GLuint h,
GLbitfield mode,
GLubyte **map,
GLint *stride)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intel_image = intel_texture_image(tex_image);
struct intel_mipmap_tree *mt = intel_image->mt;
/* Our texture data is always stored in a miptree. */
assert(mt);
/* Check that our caller wasn't confused about how to map a 1D texture. */
assert(tex_image->TexObject->Target != GL_TEXTURE_1D_ARRAY ||
h == 1);
/* intel_miptree_map operates on a unified "slice" number that references the
* cube face, since it's all just slices to the miptree code.
*/
if (tex_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
slice = tex_image->Face;
intel_miptree_map(intel, mt, tex_image->Level, slice, x, y, w, h, mode,
(void **)map, stride);
}
static void
intel_unmap_texture_image(struct gl_context *ctx,
struct gl_texture_image *tex_image, GLuint slice)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intel_image = intel_texture_image(tex_image);
struct intel_mipmap_tree *mt = intel_image->mt;
if (tex_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
slice = tex_image->Face;
intel_miptree_unmap(intel, mt, tex_image->Level, slice);
}
void
intelInitTextureFuncs(struct dd_function_table *functions)
{
functions->NewTextureObject = intelNewTextureObject;
functions->NewTextureImage = intelNewTextureImage;
functions->DeleteTextureImage = intelDeleteTextureImage;
functions->DeleteTexture = intelDeleteTextureObject;
functions->AllocTextureImageBuffer = intel_alloc_texture_image_buffer;
functions->FreeTextureImageBuffer = intel_free_texture_image_buffer;
functions->MapTextureImage = intel_map_texture_image;
functions->UnmapTextureImage = intel_unmap_texture_image;
}
|
