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 /* Because the driver uses AllocTextureImageBuffer() internally, it may end
65 * up mismatched with FreeTextureImageBuffer(), but that is safe to call
68 ctx
->Driver
.FreeTextureImageBuffer(ctx
, image
);
70 if (intel
->must_use_separate_stencil
71 && image
->TexFormat
== MESA_FORMAT_S8_Z24
) {
72 intel_tex_image_s8z24_create_renderbuffers(intel
, intel_image
);
75 /* Allocate the swrast_texture_image::ImageOffsets array now */
76 switch (texobj
->Target
) {
78 case GL_TEXTURE_2D_ARRAY
:
79 slices
= image
->Depth
;
81 case GL_TEXTURE_1D_ARRAY
:
82 slices
= image
->Height
;
87 assert(!intel_image
->base
.ImageOffsets
);
88 intel_image
->base
.ImageOffsets
= malloc(slices
* sizeof(GLuint
));
90 if (intel_texobj
->mt
&&
91 intel_miptree_match_image(intel_texobj
->mt
, image
)) {
92 intel_miptree_reference(&intel_image
->mt
, intel_texobj
->mt
);
93 DBG("%s: alloc obj %p level %d %dx%dx%d using object's miptree %p\n",
94 __FUNCTION__
, texobj
, image
->Level
,
95 width
, height
, depth
, intel_texobj
->mt
);
97 } else if (image
->Border
== 0) {
98 intel_image
->mt
= intel_miptree_create_for_teximage(intel
, intel_texobj
,
102 /* Even if the object currently has a mipmap tree associated
103 * with it, this one is a more likely candidate to represent the
104 * whole object since our level didn't fit what was there
105 * before, and any lower levels would fit into our miptree.
107 intel_miptree_reference(&intel_texobj
->mt
, intel_image
->mt
);
109 if (intel
->must_use_separate_stencil
110 && image
->TexFormat
== MESA_FORMAT_S8_Z24
) {
111 intel_tex_image_s8z24_create_renderbuffers(intel
, intel_image
);
114 DBG("%s: alloc obj %p level %d %dx%dx%d using new miptree %p\n",
115 __FUNCTION__
, texobj
, image
->Level
,
116 width
, height
, depth
, intel_image
->mt
);
120 DBG("%s: alloc obj %p level %d %dx%dx%d using swrast\n",
121 __FUNCTION__
, texobj
, image
->Level
, width
, height
, depth
);
123 return _swrast_alloc_texture_image_buffer(ctx
, image
, format
,
124 width
, height
, depth
);
128 intel_free_texture_image_buffer(struct gl_context
* ctx
,
129 struct gl_texture_image
*texImage
)
131 struct intel_texture_image
*intelImage
= intel_texture_image(texImage
);
133 DBG("%s\n", __FUNCTION__
);
135 intel_miptree_release(&intelImage
->mt
);
137 if (intelImage
->base
.Data
) {
138 _mesa_align_free(intelImage
->base
.Data
);
139 intelImage
->base
.Data
= NULL
;
142 if (intelImage
->base
.ImageOffsets
) {
143 free(intelImage
->base
.ImageOffsets
);
144 intelImage
->base
.ImageOffsets
= NULL
;
147 _mesa_reference_renderbuffer(&intelImage
->depth_rb
, NULL
);
148 _mesa_reference_renderbuffer(&intelImage
->stencil_rb
, NULL
);
152 * Map texture memory/buffer into user space.
153 * Note: the region of interest parameters are ignored here.
154 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
155 * \param mapOut returns start of mapping of region of interest
156 * \param rowStrideOut returns row stride in bytes
159 intel_map_texture_image(struct gl_context
*ctx
,
160 struct gl_texture_image
*tex_image
,
162 GLuint x
, GLuint y
, GLuint w
, GLuint h
,
167 struct intel_context
*intel
= intel_context(ctx
);
168 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
169 struct intel_mipmap_tree
*mt
= intel_image
->mt
;
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 if (intel_image
->stencil_rb
) {
178 * The texture has packed depth/stencil format, but uses separate
179 * stencil. The texture's embedded stencil buffer contains the real
180 * stencil data, so copy that into the miptree.
182 intel_tex_image_s8z24_gather(intel
, intel_image
);
185 /* For compressed formats, the stride is the number of bytes per
186 * row of blocks. intel_miptree_get_image_offset() already does
189 _mesa_get_format_block_size(tex_image
->TexFormat
, &bw
, &bh
);
194 void *base
= intel_region_map(intel
, mt
->region
, mode
);
195 unsigned int image_x
, image_y
;
197 intel_miptree_get_image_offset(mt
, tex_image
->Level
, tex_image
->Face
,
198 slice
, &image_x
, &image_y
);
202 *stride
= mt
->region
->pitch
* mt
->cpp
;
203 *map
= base
+ y
* *stride
+ x
* mt
->cpp
;
205 DBG("%s: %d,%d %dx%d from mt %p %d,%d = %p/%d\n", __FUNCTION__
,
206 x
- image_x
, y
- image_y
, w
, h
,
207 mt
, x
, y
, *map
, *stride
);
209 /* texture data is in malloc'd memory */
210 GLuint width
= tex_image
->Width
;
211 GLuint height
= ALIGN(tex_image
->Height
, bh
) / bh
;
212 GLuint texelSize
= _mesa_get_format_bytes(tex_image
->TexFormat
);
216 *stride
= _mesa_format_row_stride(tex_image
->TexFormat
, width
);
217 *map
= intel_image
->base
.Data
+ (slice
* height
+ y
) * *stride
+ x
* texelSize
;
219 DBG("%s: %d,%d %dx%d from data %p = %p/%d\n", __FUNCTION__
,
221 intel_image
->base
.Data
, *map
, *stride
);
226 intel_unmap_texture_image(struct gl_context
*ctx
,
227 struct gl_texture_image
*tex_image
, GLuint slice
)
229 struct intel_context
*intel
= intel_context(ctx
);
230 struct intel_texture_image
*intel_image
= intel_texture_image(tex_image
);
233 intel_region_unmap(intel
, intel_image
->mt
->region
);
235 if (intel_image
->stencil_rb
) {
237 * The texture has packed depth/stencil format, but uses separate
238 * stencil. The texture's embedded stencil buffer contains the real
239 * stencil data, so copy that into the miptree.
241 intel_tex_image_s8z24_scatter(intel
, intel_image
);
246 * Called via ctx->Driver.GenerateMipmap()
247 * This is basically a wrapper for _mesa_meta_GenerateMipmap() which checks
248 * if we'll be using software mipmap generation. In that case, we need to
249 * map/unmap the base level texture image.
252 intelGenerateMipmap(struct gl_context
*ctx
, GLenum target
,
253 struct gl_texture_object
*texObj
)
255 if (_mesa_meta_check_generate_mipmap_fallback(ctx
, target
, texObj
)) {
256 fallback_debug("%s - fallback to swrast\n", __FUNCTION__
);
258 _mesa_generate_mipmap(ctx
, target
, texObj
);
261 _mesa_meta_GenerateMipmap(ctx
, target
, texObj
);
267 intelInitTextureFuncs(struct dd_function_table
*functions
)
269 functions
->GenerateMipmap
= intelGenerateMipmap
;
271 functions
->NewTextureObject
= intelNewTextureObject
;
272 functions
->NewTextureImage
= intelNewTextureImage
;
273 functions
->DeleteTextureImage
= intelDeleteTextureImage
;
274 functions
->DeleteTexture
= intelDeleteTextureObject
;
275 functions
->AllocTextureImageBuffer
= intel_alloc_texture_image_buffer
;
276 functions
->FreeTextureImageBuffer
= intel_free_texture_image_buffer
;
277 functions
->MapTextureImage
= intel_map_texture_image
;
278 functions
->UnmapTextureImage
= intel_unmap_texture_image
;