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
);
63 if (intel_texobj
->mt
&&
64 intel_miptree_match_image(intel_texobj
->mt
, image
)) {
65 intel_miptree_reference(&intel_image
->mt
, intel_texobj
->mt
);
66 DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
67 __FUNCTION__
, texobj
, image
->Level
,
68 width
, height
, depth
, intel_texobj
->mt
);
70 } else if (image
->Border
== 0) {
71 intel_image
->mt
= intel_miptree_create_for_teximage(intel
, intel_texobj
,
75 /* Even if the object currently has a mipmap tree associated
76 * with it, this one is a more likely candidate to represent the
77 * whole object since our level didn't fit what was there
78 * before, and any lower levels would fit into our miptree.
80 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
82 DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
83 __FUNCTION__
, texobj
, image
->Level
,
84 width
, height
, depth
, intel_image
->mt
);
88 DBG("%s: alloc obj %p level %d %dx%dx%d using swrast\n",
89 __FUNCTION__
, texobj
, image
->Level
, width
, height
, depth
);
91 return _swrast_alloc_texture_image_buffer(ctx
, image
, format
,
92 width
, height
, depth
);
96 intel_free_texture_image_buffer(struct gl_context
* ctx
,
97 struct gl_texture_image
*texImage
)
99 struct intel_texture_image
*intelImage
= intel_texture_image(texImage
);
101 DBG("%s\n", __FUNCTION__
);
103 intel_miptree_release(&intelImage
->mt
);
105 if (texImage
->Data
) {
106 _mesa_free_texmemory(texImage
->Data
);
107 texImage
->Data
= NULL
;
110 _mesa_reference_renderbuffer(&intelImage
->depth_rb
, NULL
);
111 _mesa_reference_renderbuffer(&intelImage
->stencil_rb
, NULL
);
115 * Map texture memory/buffer into user space.
116 * Note: the region of interest parameters are ignored here.
117 * \param mapOut returns start of mapping of region of interest
118 * \param rowStrideOut returns row stride in bytes
121 intel_map_texture_image(struct gl_context
*ctx
,
122 struct gl_texture_image
*tex_image
,
124 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
129 struct intel_context
*intel
= intel_context(ctx
);
130 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
131 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
134 if (intel_image
->stencil_rb
) {
136 * The texture has packed depth/stencil format, but uses separate
137 * stencil. The texture's embedded stencil buffer contains the real
138 * stencil data, so copy that into the miptree.
140 intel_tex_image_s8z24_gather(intel
, intel_image
);
143 /* For compressed formats, the stride is the number of bytes per
144 * row of blocks. intel_miptree_get_image_offset() already does
147 _mesa_get_format_block_size(tex_image
->TexFormat
, &bw
, &bh
);
152 void *base
= intel_region_map(intel
, mt
->region
);
153 unsigned int image_x
, image_y
;
155 intel_miptree_get_image_offset(mt
, tex_image
->Level
, tex_image
->Face
,
156 slice
, &image_x
, &image_y
);
160 *stride
= mt
->region
->pitch
* mt
->cpp
;
161 *map
= base
+ y
* *stride
+ x
* mt
->cpp
;
163 /* texture data is in malloc'd memory */
164 GLuint width
= tex_image
->Width
;
165 GLuint height
= ALIGN(tex_image
->Height
, bh
) / bh
;
166 GLuint texelSize
= _mesa_get_format_bytes(tex_image
->TexFormat
);
170 *stride
= _mesa_format_row_stride(tex_image
->TexFormat
, width
);
171 *map
= tex_image
->Data
+ (slice
* height
+ y
) * *stride
+ x
* texelSize
;
178 intel_unmap_texture_image(struct gl_context
*ctx
,
179 struct gl_texture_image
*tex_image
, GLuint slice
)
181 struct intel_context
*intel
= intel_context(ctx
);
182 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
185 intel_region_unmap(intel
, intel_image
->mt
->region
);
187 if (intel_image
->stencil_rb
) {
189 * The texture has packed depth/stencil format, but uses separate
190 * stencil. The texture's embedded stencil buffer contains the real
191 * stencil data, so copy that into the miptree.
193 intel_tex_image_s8z24_scatter(intel
, intel_image
);
198 * Called via ctx->Driver.GenerateMipmap()
199 * This is basically a wrapper for _mesa_meta_GenerateMipmap() which checks
200 * if we'll be using software mipmap generation. In that case, we need to
201 * map/unmap the base level texture image.
204 intelGenerateMipmap(struct gl_context
*ctx
, GLenum target
,
205 struct gl_texture_object
*texObj
)
207 if (_mesa_meta_check_generate_mipmap_fallback(ctx
, target
, texObj
)) {
208 fallback_debug("%s - fallback to swrast\n", __FUNCTION__
);
210 _mesa_generate_mipmap(ctx
, target
, texObj
);
213 _mesa_meta_GenerateMipmap(ctx
, target
, texObj
);
219 intelInitTextureFuncs(struct dd_function_table
*functions
)
221 functions
->GenerateMipmap
= intelGenerateMipmap
;
223 functions
->NewTextureObject
= intelNewTextureObject
;
224 functions
->NewTextureImage
= intelNewTextureImage
;
225 functions
->DeleteTextureImage
= intelDeleteTextureImage
;
226 functions
->DeleteTexture
= intelDeleteTextureObject
;
227 functions
->AllocTextureImageBuffer
= intel_alloc_texture_image_buffer
;
228 functions
->FreeTextureImageBuffer
= intel_free_texture_image_buffer
;
229 functions
->MapTextureImage
= intel_map_texture_image
;
230 functions
->UnmapTextureImage
= intel_unmap_texture_image
;