1 #include "swrast/swrast.h"
2 #include "main/renderbuffer.h"
3 #include "main/texobj.h"
4 #include "main/teximage.h"
5 #include "main/mipmap.h"
6 #include "drivers/common/meta.h"
7 #include "intel_context.h"
8 #include "intel_mipmap_tree.h"
10 #include "intel_fbo.h"
12 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
14 static struct gl_texture_image
*
15 intelNewTextureImage(struct gl_context
* ctx
)
17 DBG("%s\n", __func__
);
19 return (struct gl_texture_image
*) CALLOC_STRUCT(intel_texture_image
);
23 intelDeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
25 /* nothing special (yet) for intel_texture_image */
26 _mesa_delete_texture_image(ctx
, img
);
30 static struct gl_texture_object
*
31 intelNewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
33 struct intel_texture_object
*obj
= CALLOC_STRUCT(intel_texture_object
);
37 DBG("%s\n", __func__
);
42 _mesa_initialize_texture_object(ctx
, &obj
->base
, name
, target
);
44 obj
->needs_validate
= true;
50 intelDeleteTextureObject(struct gl_context
*ctx
,
51 struct gl_texture_object
*texObj
)
53 struct intel_texture_object
*intelObj
= intel_texture_object(texObj
);
55 intel_miptree_release(&intelObj
->mt
);
56 _mesa_delete_texture_object(ctx
, texObj
);
60 intel_alloc_texture_image_buffer(struct gl_context
*ctx
,
61 struct gl_texture_image
*image
)
63 struct intel_context
*intel
= intel_context(ctx
);
64 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
65 struct gl_texture_object
*texobj
= image
->TexObject
;
66 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
68 assert(image
->Border
== 0);
70 /* Because the driver uses AllocTextureImageBuffer() internally, it may end
71 * up mismatched with FreeTextureImageBuffer(), but that is safe to call
74 ctx
->Driver
.FreeTextureImageBuffer(ctx
, image
);
76 if (!_swrast_init_texture_image(image
))
79 if (intel_texobj
->mt
&&
80 intel_miptree_match_image(intel_texobj
->mt
, image
)) {
81 intel_miptree_reference(&intel_image
->mt
, intel_texobj
->mt
);
82 DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
83 __func__
, texobj
, image
->Level
,
84 image
->Width
, image
->Height
, image
->Depth
, intel_texobj
->mt
);
86 intel_image
->mt
= intel_miptree_create_for_teximage(intel
, intel_texobj
,
90 /* Even if the object currently has a mipmap tree associated
91 * with it, this one is a more likely candidate to represent the
92 * whole object since our level didn't fit what was there
93 * before, and any lower levels would fit into our miptree.
95 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
97 DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
98 __func__
, texobj
, image
->Level
,
99 image
->Width
, image
->Height
, image
->Depth
, intel_image
->mt
);
102 intel_texobj
->needs_validate
= true;
108 intel_free_texture_image_buffer(struct gl_context
* ctx
,
109 struct gl_texture_image
*texImage
)
111 struct intel_texture_image
*intelImage
= intel_texture_image(texImage
);
113 DBG("%s\n", __func__
);
115 intel_miptree_release(&intelImage
->mt
);
117 _swrast_free_texture_image_buffer(ctx
, texImage
);
121 * Map texture memory/buffer into user space.
122 * Note: the region of interest parameters are ignored here.
123 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
124 * \param mapOut returns start of mapping of region of interest
125 * \param rowStrideOut returns row stride in bytes
128 intel_map_texture_image(struct gl_context
*ctx
,
129 struct gl_texture_image
*tex_image
,
131 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
136 struct intel_context
*intel
= intel_context(ctx
);
137 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
138 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
140 /* Our texture data is always stored in a miptree. */
143 /* Check that our caller wasn't confused about how to map a 1D texture. */
144 assert(tex_image
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
||
147 /* intel_miptree_map operates on a unified "slice" number that references the
148 * cube face, since it's all just slices to the miptree code.
150 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
151 slice
= tex_image
->Face
;
153 intel_miptree_map(intel
, mt
, tex_image
->Level
, slice
, x
, y
, w
, h
, mode
,
154 (void **)map
, stride
);
158 intel_unmap_texture_image(struct gl_context
*ctx
,
159 struct gl_texture_image
*tex_image
, GLuint slice
)
161 struct intel_context
*intel
= intel_context(ctx
);
162 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
163 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
165 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
166 slice
= tex_image
->Face
;
168 intel_miptree_unmap(intel
, mt
, tex_image
->Level
, slice
);
172 intelInitTextureFuncs(struct dd_function_table
*functions
)
174 functions
->NewTextureObject
= intelNewTextureObject
;
175 functions
->NewTextureImage
= intelNewTextureImage
;
176 functions
->DeleteTextureImage
= intelDeleteTextureImage
;
177 functions
->DeleteTexture
= intelDeleteTextureObject
;
178 functions
->AllocTextureImageBuffer
= intel_alloc_texture_image_buffer
;
179 functions
->FreeTextureImageBuffer
= intel_free_texture_image_buffer
;
180 functions
->MapTextureImage
= intel_map_texture_image
;
181 functions
->UnmapTextureImage
= intel_unmap_texture_image
;