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"
11 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
13 static struct gl_texture_image
*
14 intelNewTextureImage(struct gl_context
* ctx
)
16 DBG("%s\n", __FUNCTION__
);
18 return (struct gl_texture_image
*) CALLOC_STRUCT(intel_texture_image
);
22 intelDeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
24 /* nothing special (yet) for intel_texture_image */
25 _mesa_delete_texture_image(ctx
, img
);
29 static struct gl_texture_object
*
30 intelNewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
32 struct intel_texture_object
*obj
= CALLOC_STRUCT(intel_texture_object
);
36 DBG("%s\n", __FUNCTION__
);
37 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
43 intelDeleteTextureObject(struct gl_context
*ctx
,
44 struct gl_texture_object
*texObj
)
46 struct intel_texture_object
*intelObj
= intel_texture_object(texObj
);
48 intel_miptree_release(&intelObj
->mt
);
49 _mesa_delete_texture_object(ctx
, texObj
);
53 intel_alloc_texture_image_buffer(struct gl_context
*ctx
,
54 struct gl_texture_image
*image
,
55 gl_format format
, GLsizei width
,
56 GLsizei height
, GLsizei depth
)
58 struct intel_context
*intel
= intel_context(ctx
);
59 struct intel_texture_image
*intel_image
= intel_texture_image(image
);
60 struct gl_texture_object
*texobj
= image
->TexObject
;
61 struct intel_texture_object
*intel_texobj
= intel_texture_object(texobj
);
64 assert(image
->Border
== 0);
66 /* Because the driver uses AllocTextureImageBuffer() internally, it may end
67 * up mismatched with FreeTextureImageBuffer(), but that is safe to call
70 ctx
->Driver
.FreeTextureImageBuffer(ctx
, image
);
72 /* Allocate the swrast_texture_image::ImageOffsets array now */
73 switch (texobj
->Target
) {
75 case GL_TEXTURE_2D_ARRAY
:
76 slices
= image
->Depth
;
78 case GL_TEXTURE_1D_ARRAY
:
79 slices
= image
->Height
;
84 assert(!intel_image
->base
.ImageOffsets
);
85 intel_image
->base
.ImageOffsets
= malloc(slices
* sizeof(GLuint
));
87 _swrast_init_texture_image(image
, width
, height
, depth
);
89 if (intel_texobj
->mt
&&
90 intel_miptree_match_image(intel_texobj
->mt
, image
)) {
91 intel_miptree_reference(&intel_image
->mt
, intel_texobj
->mt
);
92 DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
93 __FUNCTION__
, texobj
, image
->Level
,
94 width
, height
, depth
, intel_texobj
->mt
);
96 intel_image
->mt
= intel_miptree_create_for_teximage(intel
, intel_texobj
,
100 /* Even if the object currently has a mipmap tree associated
101 * with it, this one is a more likely candidate to represent the
102 * whole object since our level didn't fit what was there
103 * before, and any lower levels would fit into our miptree.
105 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
107 DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
108 __FUNCTION__
, texobj
, image
->Level
,
109 width
, height
, depth
, intel_image
->mt
);
116 intel_free_texture_image_buffer(struct gl_context
* ctx
,
117 struct gl_texture_image
*texImage
)
119 struct intel_texture_image
*intelImage
= intel_texture_image(texImage
);
121 DBG("%s\n", __FUNCTION__
);
123 intel_miptree_release(&intelImage
->mt
);
125 if (intelImage
->base
.Buffer
) {
126 _mesa_align_free(intelImage
->base
.Buffer
);
127 intelImage
->base
.Buffer
= NULL
;
130 if (intelImage
->base
.ImageOffsets
) {
131 free(intelImage
->base
.ImageOffsets
);
132 intelImage
->base
.ImageOffsets
= NULL
;
137 * Map texture memory/buffer into user space.
138 * Note: the region of interest parameters are ignored here.
139 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
140 * \param mapOut returns start of mapping of region of interest
141 * \param rowStrideOut returns row stride in bytes
144 intel_map_texture_image(struct gl_context
*ctx
,
145 struct gl_texture_image
*tex_image
,
147 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
152 struct intel_context
*intel
= intel_context(ctx
);
153 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
154 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
156 /* Our texture data is always stored in a miptree. */
159 /* Check that our caller wasn't confused about how to map a 1D texture. */
160 assert(tex_image
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
||
163 /* intel_miptree_map operates on a unified "slice" number that references the
164 * cube face, since it's all just slices to the miptree code.
166 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
167 slice
= tex_image
->Face
;
169 intel_miptree_map(intel
, mt
, tex_image
->Level
, slice
, x
, y
, w
, h
, mode
,
170 (void **)map
, stride
);
174 intel_unmap_texture_image(struct gl_context
*ctx
,
175 struct gl_texture_image
*tex_image
, GLuint slice
)
177 struct intel_context
*intel
= intel_context(ctx
);
178 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
179 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
181 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
182 slice
= tex_image
->Face
;
184 intel_miptree_unmap(intel
, mt
, tex_image
->Level
, slice
);
188 intelInitTextureFuncs(struct dd_function_table
*functions
)
190 functions
->NewTextureObject
= intelNewTextureObject
;
191 functions
->NewTextureImage
= intelNewTextureImage
;
192 functions
->DeleteTextureImage
= intelDeleteTextureImage
;
193 functions
->DeleteTexture
= intelDeleteTextureObject
;
194 functions
->AllocTextureImageBuffer
= intel_alloc_texture_image_buffer
;
195 functions
->FreeTextureImageBuffer
= intel_free_texture_image_buffer
;
196 functions
->MapTextureImage
= intel_map_texture_image
;
197 functions
->UnmapTextureImage
= intel_unmap_texture_image
;