1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "st_context.h"
29 #include "st_format.h"
30 #include "st_public.h"
31 #include "st_texture.h"
32 #include "st_cb_fbo.h"
33 #include "st_inlines.h"
34 #include "main/enums.h"
35 #include "main/texfetch.h"
36 #include "main/teximage.h"
37 #include "main/texobj.h"
39 #undef Elements /* fix re-defined macro warning */
41 #include "pipe/p_state.h"
42 #include "pipe/p_context.h"
43 #include "pipe/p_defines.h"
44 #include "util/u_inlines.h"
45 #include "util/u_format.h"
46 #include "util/u_rect.h"
47 #include "util/u_math.h"
50 #define DBG if(0) printf
54 target_to_target(GLenum target
)
57 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
58 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
59 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
60 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
61 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
62 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
63 return GL_TEXTURE_CUBE_MAP_ARB
;
72 * Allocate a new pipe_texture object
73 * width0, height0, depth0 are the dimensions of the level 0 image
74 * (the highest resolution). last_level indicates how many mipmap levels
75 * to allocate storage for. For non-mipmapped textures, this will be zero.
78 st_texture_create(struct st_context
*st
,
79 enum pipe_texture_target target
,
80 enum pipe_format format
,
87 struct pipe_texture pt
, *newtex
;
88 struct pipe_screen
*screen
= st
->pipe
->screen
;
90 assert(target
<= PIPE_TEXTURE_CUBE
);
92 DBG("%s target %s format %s last_level %d\n", __FUNCTION__
,
93 _mesa_lookup_enum_by_nr(target
),
94 _mesa_lookup_enum_by_nr(format
), last_level
);
97 assert(screen
->is_format_supported(screen
, format
, target
,
98 PIPE_TEXTURE_USAGE_SAMPLER
, 0));
100 memset(&pt
, 0, sizeof(pt
));
103 pt
.last_level
= last_level
;
105 pt
.height0
= height0
;
107 pt
.tex_usage
= usage
;
109 newtex
= screen
->texture_create(screen
, &pt
);
111 assert(!newtex
|| pipe_is_referenced(&newtex
->reference
));
118 * Check if a texture image can be pulled into a unified mipmap texture.
121 st_texture_match_image(const struct pipe_texture
*pt
,
122 const struct gl_texture_image
*image
,
123 GLuint face
, GLuint level
)
125 /* Images with borders are never pulled into mipmap textures.
130 /* Check if this image's format matches the established texture's format.
132 if (st_mesa_format_to_pipe_format(image
->TexFormat
) != pt
->format
)
135 /* Test if this image's size matches what's expected in the
136 * established texture.
138 if (image
->Width
!= u_minify(pt
->width0
, level
) ||
139 image
->Height
!= u_minify(pt
->height0
, level
) ||
140 image
->Depth
!= u_minify(pt
->depth0
, level
))
148 /* Although we use the image_offset[] array to store relative offsets
149 * to cube faces, Mesa doesn't know anything about this and expects
150 * each cube face to be treated as a separate image.
152 * These functions present that view to mesa:
155 st_texture_depth_offsets(struct pipe_texture
*pt
, GLuint level
)
157 static const GLuint zero
= 0;
159 if (pt
->target
!= PIPE_TEXTURE_3D
|| pt
->level
[level
].nr_images
== 1)
162 return pt
->level
[level
].image_offset
;
167 * Return the offset to the given mipmap texture image within the
168 * texture memory buffer, in bytes.
171 st_texture_image_offset(const struct pipe_texture
* pt
,
172 GLuint face
, GLuint level
)
174 if (pt
->target
== PIPE_TEXTURE_CUBE
)
175 return (pt
->level
[level
].level_offset
+
176 pt
->level
[level
].image_offset
[face
] * pt
->cpp
);
178 return pt
->level
[level
].level_offset
;
184 * Map a teximage in a mipmap texture.
185 * \param row_stride returns row stride in bytes
186 * \param image_stride returns image stride in bytes (for 3D textures).
187 * \return address of mapping
190 st_texture_image_map(struct st_context
*st
, struct st_texture_image
*stImage
,
191 GLuint zoffset
, enum pipe_transfer_usage usage
,
192 GLuint x
, GLuint y
, GLuint w
, GLuint h
)
194 struct pipe_context
*pipe
= st
->pipe
;
195 struct pipe_texture
*pt
= stImage
->pt
;
197 DBG("%s \n", __FUNCTION__
);
199 stImage
->transfer
= st_no_flush_get_tex_transfer(st
, pt
, stImage
->face
,
200 stImage
->level
, zoffset
,
203 if (stImage
->transfer
)
204 return pipe
->transfer_map(pipe
, stImage
->transfer
);
211 st_texture_image_unmap(struct st_context
*st
,
212 struct st_texture_image
*stImage
)
214 struct pipe_context
*pipe
= st
->pipe
;
216 DBG("%s\n", __FUNCTION__
);
218 pipe
->transfer_unmap(pipe
, stImage
->transfer
);
220 pipe
->tex_transfer_destroy(pipe
, stImage
->transfer
);
226 * Upload data to a rectangular sub-region. Lots of choices how to do this:
228 * - memcpy by span to current destination
229 * - upload data as new buffer and blit
231 * Currently always memcpy.
234 st_surface_data(struct pipe_context
*pipe
,
235 struct pipe_transfer
*dst
,
236 unsigned dstx
, unsigned dsty
,
237 const void *src
, unsigned src_stride
,
238 unsigned srcx
, unsigned srcy
, unsigned width
, unsigned height
)
240 void *map
= pipe
->transfer_map(pipe
, dst
);
242 assert(dst
->texture
);
244 dst
->texture
->format
,
251 pipe
->transfer_unmap(pipe
, dst
);
255 /* Upload data for a particular image.
258 st_texture_image_data(struct st_context
*st
,
259 struct pipe_texture
*dst
,
263 GLuint src_row_stride
, GLuint src_image_stride
)
265 struct pipe_context
*pipe
= st
->pipe
;
266 GLuint depth
= u_minify(dst
->depth0
, level
);
268 const GLubyte
*srcUB
= src
;
269 struct pipe_transfer
*dst_transfer
;
271 DBG("%s\n", __FUNCTION__
);
273 for (i
= 0; i
< depth
; i
++) {
274 dst_transfer
= st_no_flush_get_tex_transfer(st
, dst
, face
, level
, i
,
275 PIPE_TRANSFER_WRITE
, 0, 0,
276 u_minify(dst
->width0
, level
),
277 u_minify(dst
->height0
, level
));
279 st_surface_data(pipe
, dst_transfer
,
280 0, 0, /* dstx, dsty */
283 0, 0, /* source x, y */
284 u_minify(dst
->width0
, level
),
285 u_minify(dst
->height0
, level
)); /* width, height */
287 pipe
->tex_transfer_destroy(pipe
, dst_transfer
);
289 srcUB
+= src_image_stride
;
294 /* Copy mipmap image between textures
297 st_texture_image_copy(struct pipe_context
*pipe
,
298 struct pipe_texture
*dst
, GLuint dstLevel
,
299 struct pipe_texture
*src
,
302 struct pipe_screen
*screen
= pipe
->screen
;
303 GLuint width
= u_minify(dst
->width0
, dstLevel
);
304 GLuint height
= u_minify(dst
->height0
, dstLevel
);
305 GLuint depth
= u_minify(dst
->depth0
, dstLevel
);
306 struct pipe_surface
*src_surface
;
307 struct pipe_surface
*dst_surface
;
310 for (i
= 0; i
< depth
; i
++) {
313 /* find src texture level of needed size */
314 for (srcLevel
= 0; srcLevel
<= src
->last_level
; srcLevel
++) {
315 if (u_minify(src
->width0
, srcLevel
) == width
&&
316 u_minify(src
->height0
, srcLevel
) == height
) {
320 assert(u_minify(src
->width0
, srcLevel
) == width
);
321 assert(u_minify(src
->height0
, srcLevel
) == height
);
325 src_surface
= screen
->get_tex_surface(screen
, src
, face
, srcLevel
, i
,
326 PIPE_BUFFER_USAGE_CPU_READ
);
327 ubyte
*map
= screen
->surface_map(screen
, src_surface
, PIPE_BUFFER_USAGE_CPU_READ
);
328 map
+= src_surface
->width
* src_surface
->height
* 4 / 2;
329 printf("%s center pixel: %d %d %d %d (pt %p[%d] -> %p[%d])\n",
331 map
[0], map
[1], map
[2], map
[3],
332 src
, srcLevel
, dst
, dstLevel
);
334 screen
->surface_unmap(screen
, src_surface
);
335 pipe_surface_reference(&src_surface
, NULL
);
339 dst_surface
= screen
->get_tex_surface(screen
, dst
, face
, dstLevel
, i
,
340 PIPE_BUFFER_USAGE_GPU_WRITE
);
342 src_surface
= screen
->get_tex_surface(screen
, src
, face
, srcLevel
, i
,
343 PIPE_BUFFER_USAGE_GPU_READ
);
345 if (pipe
->surface_copy
) {
346 pipe
->surface_copy(pipe
,
353 util_surface_copy(pipe
, FALSE
,
361 pipe_surface_reference(&src_surface
, NULL
);
362 pipe_surface_reference(&dst_surface
, NULL
);
368 * Bind a pipe surface to a texture object. After the call,
369 * the texture object is marked dirty and will be (re-)validated.
371 * If this is the first surface bound, the texture object is said to
372 * switch from normal to surface based. It will be cleared first in
375 * \param ps pipe surface to be unbound
376 * \param target texture target
377 * \param level image level
378 * \param format internal format of the texture
381 st_bind_texture_surface(struct pipe_surface
*ps
, int target
, int level
,
382 enum pipe_format format
)
384 GET_CURRENT_CONTEXT(ctx
);
385 const GLuint unit
= ctx
->Texture
.CurrentUnit
;
386 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
387 struct gl_texture_object
*texObj
;
388 struct gl_texture_image
*texImage
;
389 struct st_texture_object
*stObj
;
390 struct st_texture_image
*stImage
;
391 GLenum internalFormat
;
395 target
= GL_TEXTURE_2D
;
397 case ST_TEXTURE_RECT
:
398 target
= GL_TEXTURE_RECTANGLE_ARB
;
404 /* map pipe format to base format for now */
405 if (util_format_get_component_bits(format
, UTIL_FORMAT_COLORSPACE_RGB
, 3) > 0)
406 internalFormat
= GL_RGBA
;
408 internalFormat
= GL_RGB
;
410 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
411 _mesa_lock_texture(ctx
, texObj
);
413 stObj
= st_texture_object(texObj
);
414 /* switch to surface based */
415 if (!stObj
->surface_based
) {
416 _mesa_clear_texture_object(ctx
, texObj
);
417 stObj
->surface_based
= GL_TRUE
;
420 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
421 stImage
= st_texture_image(texImage
);
423 _mesa_init_teximage_fields(ctx
, target
, texImage
,
424 ps
->width
, ps
->height
, 1, 0, internalFormat
);
425 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
426 GL_RGBA
, GL_UNSIGNED_BYTE
);
427 _mesa_set_fetch_functions(texImage
, 2);
428 pipe_texture_reference(&stImage
->pt
, ps
->texture
);
430 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
431 _mesa_unlock_texture(ctx
, texObj
);
438 * Unbind a pipe surface from a texture object. After the call,
439 * the texture object is marked dirty and will be (re-)validated.
441 * \param ps pipe surface to be unbound
442 * \param target texture target
443 * \param level image level
446 st_unbind_texture_surface(struct pipe_surface
*ps
, int target
, int level
)
448 GET_CURRENT_CONTEXT(ctx
);
449 const GLuint unit
= ctx
->Texture
.CurrentUnit
;
450 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
451 struct gl_texture_object
*texObj
;
452 struct gl_texture_image
*texImage
;
453 struct st_texture_object
*stObj
;
454 struct st_texture_image
*stImage
;
458 target
= GL_TEXTURE_2D
;
460 case ST_TEXTURE_RECT
:
461 target
= GL_TEXTURE_RECTANGLE_ARB
;
467 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
469 _mesa_lock_texture(ctx
, texObj
);
471 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
472 stObj
= st_texture_object(texObj
);
473 stImage
= st_texture_image(texImage
);
475 /* Make sure the pipe surface is still bound. The texture object is still
476 * considered surface based even if this is the last bound surface. */
477 if (stImage
->pt
== ps
->texture
) {
478 pipe_texture_reference(&stImage
->pt
, NULL
);
479 _mesa_clear_texture_image(ctx
, texImage
);
481 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
484 _mesa_unlock_texture(ctx
, texObj
);
490 /** Redirect rendering into stfb's surface to a texture image */
492 st_bind_teximage(struct st_framebuffer
*stfb
, uint surfIndex
,
493 int target
, int format
, int level
)
495 GET_CURRENT_CONTEXT(ctx
);
496 struct st_context
*st
= ctx
->st
;
497 struct pipe_context
*pipe
= st
->pipe
;
498 struct pipe_screen
*screen
= pipe
->screen
;
499 const GLuint unit
= ctx
->Texture
.CurrentUnit
;
500 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
501 struct gl_texture_object
*texObj
;
502 struct gl_texture_image
*texImage
;
503 struct st_texture_image
*stImage
;
504 struct st_renderbuffer
*strb
;
505 GLint face
= 0, slice
= 0;
507 assert(surfIndex
<= ST_SURFACE_DEPTH
);
509 strb
= st_renderbuffer(stfb
->Base
.Attachment
[surfIndex
].Renderbuffer
);
511 if (strb
->texture_save
|| strb
->surface_save
) {
516 if (target
== ST_TEXTURE_2D
) {
517 texObj
= texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
518 texImage
= _mesa_get_tex_image(ctx
, texObj
, GL_TEXTURE_2D
, level
);
519 stImage
= st_texture_image(texImage
);
522 /* unsupported target */
526 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
528 /* save the renderbuffer's surface/texture info */
529 pipe_texture_reference(&strb
->texture_save
, strb
->texture
);
530 pipe_surface_reference(&strb
->surface_save
, strb
->surface
);
531 pipe_sampler_view_reference(&strb
->sampler_view_save
, strb
->sampler_view
);
533 /* plug in new surface/texture info */
534 pipe_texture_reference(&strb
->texture
, stImage
->pt
);
536 /* XXX: Shouldn't we release reference to old surface here?
539 strb
->surface
= screen
->get_tex_surface(screen
, strb
->texture
,
541 (PIPE_BUFFER_USAGE_GPU_READ
|
542 PIPE_BUFFER_USAGE_GPU_WRITE
));
544 pipe_sampler_view_reference(&strb
->sampler_view
, NULL
);
546 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
552 /** Undo surface-to-texture binding */
554 st_release_teximage(struct st_framebuffer
*stfb
, uint surfIndex
,
555 int target
, int format
, int level
)
557 GET_CURRENT_CONTEXT(ctx
);
558 struct st_context
*st
= ctx
->st
;
559 struct st_renderbuffer
*strb
;
561 assert(surfIndex
<= ST_SURFACE_DEPTH
);
563 strb
= st_renderbuffer(stfb
->Base
.Attachment
[surfIndex
].Renderbuffer
);
565 if (!strb
->texture_save
|| !strb
->surface_save
) {
570 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
572 /* free tex surface, restore original */
573 pipe_surface_reference(&strb
->surface
, strb
->surface_save
);
574 pipe_texture_reference(&strb
->texture
, strb
->texture_save
);
575 pipe_sampler_view_reference(&strb
->sampler_view
, strb
->sampler_view_save
);
577 pipe_surface_reference(&strb
->surface_save
, NULL
);
578 pipe_texture_reference(&strb
->texture_save
, NULL
);
579 pipe_sampler_view_reference(&strb
->sampler_view
, NULL
);
581 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
587 st_teximage_flush_before_map(struct st_context
*st
,
588 struct pipe_texture
*pt
,
591 enum pipe_transfer_usage usage
)
593 struct pipe_context
*pipe
= st
->pipe
;
594 unsigned referenced
=
595 pipe
->is_texture_referenced(pipe
, pt
, face
, level
);
597 if (referenced
&& ((referenced
& PIPE_REFERENCED_FOR_WRITE
) ||
598 (usage
& PIPE_TRANSFER_WRITE
)))
599 st
->pipe
->flush(st
->pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);