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", __FUNCTION__
);
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", __FUNCTION__
);
42 _mesa_initialize_texture_object(&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 /* Quantize sample count */
71 if (image
->NumSamples
) {
72 image
->NumSamples
= intel_quantize_num_samples(intel
->intelScreen
, image
->NumSamples
);
73 if (!image
->NumSamples
)
77 /* Because the driver uses AllocTextureImageBuffer() internally, it may end
78 * up mismatched with FreeTextureImageBuffer(), but that is safe to call
81 ctx
->Driver
.FreeTextureImageBuffer(ctx
, image
);
83 if (!_swrast_init_texture_image(image
))
86 if (intel_texobj
->mt
&&
87 intel_miptree_match_image(intel_texobj
->mt
, image
)) {
88 intel_miptree_reference(&intel_image
->mt
, intel_texobj
->mt
);
89 DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
90 __FUNCTION__
, texobj
, image
->Level
,
91 image
->Width
, image
->Height
, image
->Depth
, intel_texobj
->mt
);
93 intel_image
->mt
= intel_miptree_create_for_teximage(intel
, intel_texobj
,
97 /* Even if the object currently has a mipmap tree associated
98 * with it, this one is a more likely candidate to represent the
99 * whole object since our level didn't fit what was there
100 * before, and any lower levels would fit into our miptree.
102 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
104 DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
105 __FUNCTION__
, texobj
, image
->Level
,
106 image
->Width
, image
->Height
, image
->Depth
, intel_image
->mt
);
109 intel_texobj
->needs_validate
= true;
115 intel_free_texture_image_buffer(struct gl_context
* ctx
,
116 struct gl_texture_image
*texImage
)
118 struct intel_texture_image
*intelImage
= intel_texture_image(texImage
);
120 DBG("%s\n", __FUNCTION__
);
122 intel_miptree_release(&intelImage
->mt
);
124 if (intelImage
->base
.Buffer
) {
125 _mesa_align_free(intelImage
->base
.Buffer
);
126 intelImage
->base
.Buffer
= NULL
;
129 free(intelImage
->base
.ImageOffsets
);
130 intelImage
->base
.ImageOffsets
= NULL
;
134 * Map texture memory/buffer into user space.
135 * Note: the region of interest parameters are ignored here.
136 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
137 * \param mapOut returns start of mapping of region of interest
138 * \param rowStrideOut returns row stride in bytes
141 intel_map_texture_image(struct gl_context
*ctx
,
142 struct gl_texture_image
*tex_image
,
144 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
149 struct intel_context
*intel
= intel_context(ctx
);
150 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
151 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
153 /* Our texture data is always stored in a miptree. */
156 /* Check that our caller wasn't confused about how to map a 1D texture. */
157 assert(tex_image
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
||
160 /* intel_miptree_map operates on a unified "slice" number that references the
161 * cube face, since it's all just slices to the miptree code.
163 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
164 slice
= tex_image
->Face
;
166 intel_miptree_map(intel
, mt
, tex_image
->Level
, slice
, x
, y
, w
, h
, mode
,
167 (void **)map
, stride
);
171 intel_unmap_texture_image(struct gl_context
*ctx
,
172 struct gl_texture_image
*tex_image
, GLuint slice
)
174 struct intel_context
*intel
= intel_context(ctx
);
175 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
176 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
178 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
179 slice
= tex_image
->Face
;
181 intel_miptree_unmap(intel
, mt
, tex_image
->Level
, slice
);
185 intelInitTextureFuncs(struct dd_function_table
*functions
)
187 functions
->NewTextureObject
= intelNewTextureObject
;
188 functions
->NewTextureImage
= intelNewTextureImage
;
189 functions
->DeleteTextureImage
= intelDeleteTextureImage
;
190 functions
->DeleteTexture
= intelDeleteTextureObject
;
191 functions
->AllocTextureImageBuffer
= intel_alloc_texture_image_buffer
;
192 functions
->FreeTextureImageBuffer
= intel_free_texture_image_buffer
;
193 functions
->MapTextureImage
= intel_map_texture_image
;
194 functions
->UnmapTextureImage
= intel_unmap_texture_image
;