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
);
69 assert(image
->Border
== 0);
71 /* Quantize sample count */
72 if (image
->NumSamples
) {
73 image
->NumSamples
= intel_quantize_num_samples(intel
->intelScreen
, image
->NumSamples
);
74 if (!image
->NumSamples
)
78 /* Because the driver uses AllocTextureImageBuffer() internally, it may end
79 * up mismatched with FreeTextureImageBuffer(), but that is safe to call
82 ctx
->Driver
.FreeTextureImageBuffer(ctx
, image
);
84 /* Allocate the swrast_texture_image::ImageOffsets array now */
85 switch (texobj
->Target
) {
87 case GL_TEXTURE_2D_ARRAY
:
88 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
89 slices
= image
->Depth
;
91 case GL_TEXTURE_1D_ARRAY
:
92 slices
= image
->Height
;
97 assert(!intel_image
->base
.ImageOffsets
);
98 intel_image
->base
.ImageOffsets
= malloc(slices
* sizeof(GLuint
));
100 _swrast_init_texture_image(image
);
102 if (intel_texobj
->mt
&&
103 intel_miptree_match_image(intel_texobj
->mt
, image
)) {
104 intel_miptree_reference(&intel_image
->mt
, intel_texobj
->mt
);
105 DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
106 __FUNCTION__
, texobj
, image
->Level
,
107 image
->Width
, image
->Height
, image
->Depth
, intel_texobj
->mt
);
109 intel_image
->mt
= intel_miptree_create_for_teximage(intel
, intel_texobj
,
113 /* Even if the object currently has a mipmap tree associated
114 * with it, this one is a more likely candidate to represent the
115 * whole object since our level didn't fit what was there
116 * before, and any lower levels would fit into our miptree.
118 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
120 DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
121 __FUNCTION__
, texobj
, image
->Level
,
122 image
->Width
, image
->Height
, image
->Depth
, intel_image
->mt
);
125 intel_texobj
->needs_validate
= true;
131 intel_free_texture_image_buffer(struct gl_context
* ctx
,
132 struct gl_texture_image
*texImage
)
134 struct intel_texture_image
*intelImage
= intel_texture_image(texImage
);
136 DBG("%s\n", __FUNCTION__
);
138 intel_miptree_release(&intelImage
->mt
);
140 if (intelImage
->base
.Buffer
) {
141 _mesa_align_free(intelImage
->base
.Buffer
);
142 intelImage
->base
.Buffer
= NULL
;
145 free(intelImage
->base
.ImageOffsets
);
146 intelImage
->base
.ImageOffsets
= NULL
;
150 * Map texture memory/buffer into user space.
151 * Note: the region of interest parameters are ignored here.
152 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
153 * \param mapOut returns start of mapping of region of interest
154 * \param rowStrideOut returns row stride in bytes
157 intel_map_texture_image(struct gl_context
*ctx
,
158 struct gl_texture_image
*tex_image
,
160 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
165 struct intel_context
*intel
= intel_context(ctx
);
166 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
167 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
169 /* Our texture data is always stored in a miptree. */
172 /* Check that our caller wasn't confused about how to map a 1D texture. */
173 assert(tex_image
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
||
176 /* intel_miptree_map operates on a unified "slice" number that references the
177 * cube face, since it's all just slices to the miptree code.
179 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
180 slice
= tex_image
->Face
;
182 intel_miptree_map(intel
, mt
, tex_image
->Level
, slice
, x
, y
, w
, h
, mode
,
183 (void **)map
, stride
);
187 intel_unmap_texture_image(struct gl_context
*ctx
,
188 struct gl_texture_image
*tex_image
, GLuint slice
)
190 struct intel_context
*intel
= intel_context(ctx
);
191 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
192 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
194 if (tex_image
->TexObject
->Target
== GL_TEXTURE_CUBE_MAP
)
195 slice
= tex_image
->Face
;
197 intel_miptree_unmap(intel
, mt
, tex_image
->Level
, slice
);
201 intelInitTextureFuncs(struct dd_function_table
*functions
)
203 functions
->NewTextureObject
= intelNewTextureObject
;
204 functions
->NewTextureImage
= intelNewTextureImage
;
205 functions
->DeleteTextureImage
= intelDeleteTextureImage
;
206 functions
->DeleteTexture
= intelDeleteTextureObject
;
207 functions
->AllocTextureImageBuffer
= intel_alloc_texture_image_buffer
;
208 functions
->FreeTextureImageBuffer
= intel_free_texture_image_buffer
;
209 functions
->MapTextureImage
= intel_map_texture_image
;
210 functions
->UnmapTextureImage
= intel_unmap_texture_image
;