1 /**************************************************************************
3 * Copyright 2006 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 **************************************************************************/
29 * Keith Whitwell <keith@tungstengraphics.com>
30 * Michel Dänzer <michel@tungstengraphics.com>
35 #include "pipe/p_context.h"
36 #include "pipe/p_defines.h"
38 #include "util/u_inlines.h"
39 #include "util/u_cpu_detect.h"
40 #include "util/u_format.h"
41 #include "util/u_math.h"
42 #include "util/u_memory.h"
43 #include "util/u_simple_list.h"
44 #include "util/u_transfer.h"
46 #include "lp_context.h"
48 #include "lp_screen.h"
49 #include "lp_tile_image.h"
50 #include "lp_texture.h"
54 #include "state_tracker/sw_winsys.h"
58 static struct llvmpipe_resource resource_list;
60 static unsigned id_counter = 0;
64 resource_is_texture(const struct pipe_resource *resource)
66 switch (resource->target) {
71 case PIPE_TEXTURE_RECT:
73 case PIPE_TEXTURE_CUBE:
84 * Allocate storage for llvmpipe_texture::layout array.
85 * The number of elements is width_in_tiles * height_in_tiles.
87 static enum lp_texture_layout *
88 alloc_layout_array(unsigned num_slices, unsigned width, unsigned height)
90 const unsigned tx = align(width, TILE_SIZE) / TILE_SIZE;
91 const unsigned ty = align(height, TILE_SIZE) / TILE_SIZE;
93 assert(num_slices * tx * ty > 0);
94 assert(LP_TEX_LAYOUT_NONE == 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */
96 return (enum lp_texture_layout *)
97 CALLOC(num_slices * tx * ty, sizeof(enum lp_texture_layout));
103 * Conventional allocation path for non-display textures:
104 * Just compute row strides here. Storage is allocated on demand later.
107 llvmpipe_texture_layout(struct llvmpipe_screen *screen,
108 struct llvmpipe_resource *lpr)
110 struct pipe_resource *pt = &lpr->base;
112 unsigned width = pt->width0;
113 unsigned height = pt->height0;
114 unsigned depth = pt->depth0;
116 assert(LP_MAX_TEXTURE_2D_LEVELS <= LP_MAX_TEXTURE_LEVELS);
117 assert(LP_MAX_TEXTURE_3D_LEVELS <= LP_MAX_TEXTURE_LEVELS);
119 for (level = 0; level <= pt->last_level; level++) {
121 /* Row stride and image stride (for linear layout) */
123 unsigned alignment, nblocksx, nblocksy, block_size;
125 /* For non-compressed formats we need to align the texture size
126 * to the tile size to facilitate render-to-texture.
128 if (util_format_is_compressed(pt->format))
131 alignment = TILE_SIZE;
133 nblocksx = util_format_get_nblocksx(pt->format,
134 align(width, alignment));
135 nblocksy = util_format_get_nblocksy(pt->format,
136 align(height, alignment));
137 block_size = util_format_get_blocksize(pt->format);
139 lpr->row_stride[level] = align(nblocksx * block_size, 16);
141 lpr->img_stride[level] = lpr->row_stride[level] * nblocksy;
144 /* Size of the image in tiles (for tiled layout) */
146 const unsigned width_t = align(width, TILE_SIZE) / TILE_SIZE;
147 const unsigned height_t = align(height, TILE_SIZE) / TILE_SIZE;
148 lpr->tiles_per_row[level] = width_t;
149 lpr->tiles_per_image[level] = width_t * height_t;
152 /* Number of 3D image slices or cube faces */
156 if (lpr->base.target == PIPE_TEXTURE_CUBE)
158 else if (lpr->base.target == PIPE_TEXTURE_3D)
163 lpr->num_slices_faces[level] = num_slices;
165 lpr->layout[level] = alloc_layout_array(num_slices, width, height);
168 /* Compute size of next mipmap level */
169 width = u_minify(width, 1);
170 height = u_minify(height, 1);
171 depth = u_minify(depth, 1);
180 llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen,
181 struct llvmpipe_resource *lpr)
183 struct sw_winsys *winsys = screen->winsys;
185 /* Round up the surface size to a multiple of the tile size to
186 * avoid tile clipping.
188 const unsigned width = align(lpr->base.width0, TILE_SIZE);
189 const unsigned height = align(lpr->base.height0, TILE_SIZE);
190 const unsigned width_t = width / TILE_SIZE;
191 const unsigned height_t = height / TILE_SIZE;
193 lpr->tiles_per_row[0] = width_t;
194 lpr->tiles_per_image[0] = width_t * height_t;
195 lpr->num_slices_faces[0] = 1;
196 lpr->img_stride[0] = 0;
198 lpr->layout[0] = alloc_layout_array(1, width, height);
199 //lpr->layout[0][0] = LP_TEX_LAYOUT_LINEAR;
201 lpr->dt = winsys->displaytarget_create(winsys,
206 &lpr->row_stride[0] );
208 return lpr->dt != NULL;
212 static struct pipe_resource *
213 llvmpipe_resource_create(struct pipe_screen *_screen,
214 const struct pipe_resource *templat)
216 struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
217 struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource);
221 lpr->base = *templat;
222 pipe_reference_init(&lpr->base.reference, 1);
223 lpr->base.screen = &screen->base;
225 /* assert(lpr->base.bind); */
227 if (resource_is_texture(&lpr->base)) {
228 if (lpr->base.bind & PIPE_BIND_DISPLAY_TARGET) {
229 /* displayable surface */
230 if (!llvmpipe_displaytarget_layout(screen, lpr))
232 assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE);
236 if (!llvmpipe_texture_layout(screen, lpr))
238 assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE);
240 assert(lpr->layout[0]);
243 /* other data (vertex buffer, const buffer, etc) */
244 const enum pipe_format format = templat->format;
245 const uint w = templat->width0 / util_format_get_blockheight(format);
246 /* XXX buffers should only have one dimension, those values should be 1 */
247 const uint h = templat->height0 / util_format_get_blockwidth(format);
248 const uint d = templat->depth0;
249 const uint bpp = util_format_get_blocksize(format);
250 const uint bytes = w * h * d * bpp;
251 lpr->data = align_malloc(bytes, 16);
256 lpr->id = id_counter++;
259 insert_at_tail(&resource_list, lpr);
271 llvmpipe_resource_destroy(struct pipe_screen *pscreen,
272 struct pipe_resource *pt)
274 struct llvmpipe_screen *screen = llvmpipe_screen(pscreen);
275 struct llvmpipe_resource *lpr = llvmpipe_resource(pt);
279 struct sw_winsys *winsys = screen->winsys;
280 winsys->displaytarget_destroy(winsys, lpr->dt);
282 if (lpr->tiled[0].data) {
283 align_free(lpr->tiled[0].data);
284 lpr->tiled[0].data = NULL;
287 FREE(lpr->layout[0]);
289 else if (resource_is_texture(pt)) {
290 /* regular texture */
293 /* free linear image data */
294 for (level = 0; level < Elements(lpr->linear); level++) {
295 if (lpr->linear[level].data) {
296 align_free(lpr->linear[level].data);
297 lpr->linear[level].data = NULL;
301 /* free tiled image data */
302 for (level = 0; level < Elements(lpr->tiled); level++) {
303 if (lpr->tiled[level].data) {
304 align_free(lpr->tiled[level].data);
305 lpr->tiled[level].data = NULL;
309 /* free layout flag arrays */
310 for (level = 0; level < Elements(lpr->tiled); level++) {
311 FREE(lpr->layout[level]);
312 lpr->layout[level] = NULL;
315 else if (!lpr->userBuffer) {
317 align_free(lpr->data);
322 remove_from_list(lpr);
330 * Map a resource for read/write.
333 llvmpipe_resource_map(struct pipe_resource *resource,
336 enum lp_texture_usage tex_usage,
337 enum lp_texture_layout layout)
339 struct llvmpipe_resource *lpr = llvmpipe_resource(resource);
342 assert(level < LP_MAX_TEXTURE_LEVELS);
343 assert(layer < (u_minify(resource->depth0, level) + resource->array_size - 1));
345 assert(tex_usage == LP_TEX_USAGE_READ ||
346 tex_usage == LP_TEX_USAGE_READ_WRITE ||
347 tex_usage == LP_TEX_USAGE_WRITE_ALL);
349 assert(layout == LP_TEX_LAYOUT_NONE ||
350 layout == LP_TEX_LAYOUT_TILED ||
351 layout == LP_TEX_LAYOUT_LINEAR);
355 struct llvmpipe_screen *screen = llvmpipe_screen(resource->screen);
356 struct sw_winsys *winsys = screen->winsys;
360 if (tex_usage == LP_TEX_USAGE_READ) {
361 dt_usage = PIPE_TRANSFER_READ;
364 dt_usage = PIPE_TRANSFER_READ_WRITE;
370 /* FIXME: keep map count? */
371 map = winsys->displaytarget_map(winsys, lpr->dt, dt_usage);
373 /* install this linear image in texture data structure */
374 lpr->linear[level].data = map;
376 /* make sure tiled data gets converted to linear data */
377 map2 = llvmpipe_get_texture_image(lpr, 0, 0, tex_usage, layout);
378 if (layout == LP_TEX_LAYOUT_LINEAR)
383 else if (resource_is_texture(resource)) {
385 map = llvmpipe_get_texture_image(lpr, layer, level,
399 llvmpipe_resource_unmap(struct pipe_resource *resource,
403 struct llvmpipe_resource *lpr = llvmpipe_resource(resource);
407 struct llvmpipe_screen *lp_screen = llvmpipe_screen(resource->screen);
408 struct sw_winsys *winsys = lp_screen->winsys;
413 /* make sure linear image is up to date */
414 (void) llvmpipe_get_texture_image(lpr, layer, level,
416 LP_TEX_LAYOUT_LINEAR);
418 winsys->displaytarget_unmap(winsys, lpr->dt);
424 llvmpipe_resource_data(struct pipe_resource *resource)
426 struct llvmpipe_resource *lpr = llvmpipe_resource(resource);
428 assert(!resource_is_texture(resource));
434 static struct pipe_resource *
435 llvmpipe_resource_from_handle(struct pipe_screen *screen,
436 const struct pipe_resource *template,
437 struct winsys_handle *whandle)
439 struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys;
440 struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource);
441 unsigned width, height, width_t, height_t;
443 /* XXX Seems like from_handled depth textures doesn't work that well */
448 lpr->base = *template;
449 pipe_reference_init(&lpr->base.reference, 1);
450 lpr->base.screen = screen;
452 width = align(lpr->base.width0, TILE_SIZE);
453 height = align(lpr->base.height0, TILE_SIZE);
454 width_t = width / TILE_SIZE;
455 height_t = height / TILE_SIZE;
458 * Looks like unaligned displaytargets work just fine,
459 * at least sampler/render ones.
462 assert(lpr->base.width0 == width);
463 assert(lpr->base.height0 == height);
466 lpr->tiles_per_row[0] = width_t;
467 lpr->tiles_per_image[0] = width_t * height_t;
468 lpr->num_slices_faces[0] = 1;
469 lpr->img_stride[0] = 0;
471 lpr->dt = winsys->displaytarget_from_handle(winsys,
474 &lpr->row_stride[0]);
478 lpr->layout[0] = alloc_layout_array(1, lpr->base.width0, lpr->base.height0);
480 assert(lpr->layout[0]);
481 assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE);
483 lpr->id = id_counter++;
486 insert_at_tail(&resource_list, lpr);
498 llvmpipe_resource_get_handle(struct pipe_screen *screen,
499 struct pipe_resource *pt,
500 struct winsys_handle *whandle)
502 struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys;
503 struct llvmpipe_resource *lpr = llvmpipe_resource(pt);
509 return winsys->displaytarget_get_handle(winsys, lpr->dt, whandle);
513 static struct pipe_surface *
514 llvmpipe_create_surface(struct pipe_context *pipe,
515 struct pipe_resource *pt,
516 const struct pipe_surface *surf_tmpl)
518 struct pipe_surface *ps;
520 assert(surf_tmpl->u.tex.level <= pt->last_level);
522 ps = CALLOC_STRUCT(pipe_surface);
524 pipe_reference_init(&ps->reference, 1);
525 pipe_resource_reference(&ps->texture, pt);
527 ps->format = surf_tmpl->format;
528 ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
529 ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
530 ps->usage = surf_tmpl->usage;
532 ps->u.tex.level = surf_tmpl->u.tex.level;
533 ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
534 ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
541 llvmpipe_surface_destroy(struct pipe_context *pipe,
542 struct pipe_surface *surf)
544 /* Effectively do the texture_update work here - if texture images
545 * needed post-processing to put them into hardware layout, this is
546 * where it would happen. For llvmpipe, nothing to do.
548 assert(surf->texture);
549 pipe_resource_reference(&surf->texture, NULL);
554 static struct pipe_transfer *
555 llvmpipe_get_transfer(struct pipe_context *pipe,
556 struct pipe_resource *resource,
559 const struct pipe_box *box)
561 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
562 struct llvmpipe_resource *lprex = llvmpipe_resource(resource);
563 struct llvmpipe_transfer *lpr;
566 assert(level <= resource->last_level);
569 * Transfers, like other pipe operations, must happen in order, so flush the
570 * context if necessary.
572 if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
573 boolean read_only = !(usage & PIPE_TRANSFER_WRITE);
574 boolean do_not_block = !!(usage & PIPE_TRANSFER_DONTBLOCK);
575 if (!llvmpipe_flush_resource(pipe, resource,
577 box->depth > 1 ? -1 : box->z,
579 TRUE, /* cpu_access */
583 * It would have blocked, but state tracker requested no to.
585 assert(do_not_block);
590 if (resource == llvmpipe->constants[PIPE_SHADER_FRAGMENT][0])
591 llvmpipe->dirty |= LP_NEW_CONSTANTS;
593 lpr = CALLOC_STRUCT(llvmpipe_transfer);
595 struct pipe_transfer *pt = &lpr->base;
596 pipe_resource_reference(&pt->resource, resource);
599 pt->stride = lprex->row_stride[level];
600 pt->layer_stride = lprex->img_stride[level];
610 llvmpipe_transfer_destroy(struct pipe_context *pipe,
611 struct pipe_transfer *transfer)
613 /* Effectively do the texture_update work here - if texture images
614 * needed post-processing to put them into hardware layout, this is
615 * where it would happen. For llvmpipe, nothing to do.
617 assert (transfer->resource);
618 pipe_resource_reference(&transfer->resource, NULL);
624 llvmpipe_transfer_map( struct pipe_context *pipe,
625 struct pipe_transfer *transfer )
627 struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
629 struct llvmpipe_resource *lpr;
630 enum pipe_format format;
631 enum lp_texture_usage tex_usage;
634 assert(transfer->level < LP_MAX_TEXTURE_LEVELS);
637 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
638 transfer->x, transfer->y, transfer->width, transfer->height,
639 transfer->texture->width0,
640 transfer->texture->height0,
644 if (transfer->usage == PIPE_TRANSFER_READ) {
645 tex_usage = LP_TEX_USAGE_READ;
649 tex_usage = LP_TEX_USAGE_READ_WRITE;
654 struct llvmpipe_resource *lpr = llvmpipe_resource(transfer->resource);
655 printf("transfer map tex %u mode %s\n", lpr->id, mode);
659 assert(transfer->resource);
660 lpr = llvmpipe_resource(transfer->resource);
661 format = lpr->base.format;
663 map = llvmpipe_resource_map(transfer->resource,
666 tex_usage, LP_TEX_LAYOUT_LINEAR);
669 /* May want to do different things here depending on read/write nature
672 if (transfer->usage & PIPE_TRANSFER_WRITE) {
673 /* Do something to notify sharing contexts of a texture change.
679 transfer->box.y / util_format_get_blockheight(format) * transfer->stride +
680 transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
687 llvmpipe_transfer_unmap(struct pipe_context *pipe,
688 struct pipe_transfer *transfer)
690 assert(transfer->resource);
692 llvmpipe_resource_unmap(transfer->resource,
698 llvmpipe_is_resource_referenced( struct pipe_context *pipe,
699 struct pipe_resource *presource,
700 unsigned level, int layer)
702 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
704 if (presource->target == PIPE_BUFFER)
705 return LP_UNREFERENCED;
707 return lp_setup_is_resource_referenced(llvmpipe->setup, presource);
713 * Create buffer which wraps user-space data.
715 static struct pipe_resource *
716 llvmpipe_user_buffer_create(struct pipe_screen *screen,
721 struct llvmpipe_resource *buffer;
723 buffer = CALLOC_STRUCT(llvmpipe_resource);
727 pipe_reference_init(&buffer->base.reference, 1);
728 buffer->base.screen = screen;
729 buffer->base.format = PIPE_FORMAT_R8_UNORM; /* ?? */
730 buffer->base.bind = bind_flags;
731 buffer->base.usage = PIPE_USAGE_IMMUTABLE;
732 buffer->base.flags = 0;
733 buffer->base.width0 = bytes;
734 buffer->base.height0 = 1;
735 buffer->base.depth0 = 1;
736 buffer->base.array_size = 1;
737 buffer->userBuffer = TRUE;
740 return &buffer->base;
745 * Compute size (in bytes) need to store a texture image / mipmap level,
746 * for just one cube face or one 3D texture slice
749 tex_image_face_size(const struct llvmpipe_resource *lpr, unsigned level,
750 enum lp_texture_layout layout)
752 const unsigned width = u_minify(lpr->base.width0, level);
753 const unsigned height = u_minify(lpr->base.height0, level);
755 assert(layout == LP_TEX_LAYOUT_TILED ||
756 layout == LP_TEX_LAYOUT_LINEAR);
758 if (layout == LP_TEX_LAYOUT_TILED) {
759 /* for tiled layout, force a 32bpp format */
760 const enum pipe_format format = PIPE_FORMAT_B8G8R8A8_UNORM;
761 const unsigned block_size = util_format_get_blocksize(format);
762 const unsigned nblocksy =
763 util_format_get_nblocksy(format, align(height, TILE_SIZE));
764 const unsigned nblocksx =
765 util_format_get_nblocksx(format, align(width, TILE_SIZE));
766 const unsigned buffer_size = block_size * nblocksy * nblocksx;
770 /* we already computed this */
771 return lpr->img_stride[level];
777 * Compute size (in bytes) need to store a texture image / mipmap level,
778 * including all cube faces or 3D image slices
781 tex_image_size(const struct llvmpipe_resource *lpr, unsigned level,
782 enum lp_texture_layout layout)
784 const unsigned buf_size = tex_image_face_size(lpr, level, layout);
785 return buf_size * lpr->num_slices_faces[level];
790 * This function encapsulates some complicated logic for determining
791 * how to convert a tile of image data from linear layout to tiled
792 * layout, or vice versa.
793 * \param cur_layout the current tile layout
794 * \param target_layout the desired tile layout
795 * \param usage how the tile will be accessed (R/W vs. read-only, etc)
796 * \param new_layout_return returns the new layout mode
797 * \param convert_return returns TRUE if image conversion is needed
800 layout_logic(enum lp_texture_layout cur_layout,
801 enum lp_texture_layout target_layout,
802 enum lp_texture_usage usage,
803 enum lp_texture_layout *new_layout_return,
806 enum lp_texture_layout other_layout, new_layout;
810 new_layout = 99; /* debug check */
812 if (target_layout == LP_TEX_LAYOUT_LINEAR) {
813 other_layout = LP_TEX_LAYOUT_TILED;
816 assert(target_layout == LP_TEX_LAYOUT_TILED);
817 other_layout = LP_TEX_LAYOUT_LINEAR;
820 new_layout = target_layout; /* may get changed below */
822 if (cur_layout == LP_TEX_LAYOUT_BOTH) {
823 if (usage == LP_TEX_USAGE_READ) {
824 new_layout = LP_TEX_LAYOUT_BOTH;
827 else if (cur_layout == other_layout) {
828 if (usage != LP_TEX_USAGE_WRITE_ALL) {
829 /* need to convert tiled data to linear or vice versa */
832 if (usage == LP_TEX_USAGE_READ)
833 new_layout = LP_TEX_LAYOUT_BOTH;
837 assert(cur_layout == LP_TEX_LAYOUT_NONE ||
838 cur_layout == target_layout);
841 assert(new_layout == LP_TEX_LAYOUT_BOTH ||
842 new_layout == target_layout);
844 *new_layout_return = new_layout;
849 * Return pointer to a 2D texture image/face/slice.
850 * No tiled/linear conversion is done.
853 llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpr,
854 unsigned face_slice, unsigned level,
855 enum lp_texture_layout layout)
857 struct llvmpipe_texture_image *img;
860 if (layout == LP_TEX_LAYOUT_LINEAR) {
861 img = &lpr->linear[level];
864 assert (layout == LP_TEX_LAYOUT_TILED);
865 img = &lpr->tiled[level];
869 offset = face_slice * tex_image_face_size(lpr, level, layout);
873 return (ubyte *) img->data + offset;
877 static INLINE enum lp_texture_layout
878 llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource *lpr,
879 unsigned face_slice, unsigned level,
880 unsigned x, unsigned y)
883 assert(resource_is_texture(&lpr->base));
884 assert(x < lpr->tiles_per_row[level]);
885 i = face_slice * lpr->tiles_per_image[level]
886 + y * lpr->tiles_per_row[level] + x;
887 return lpr->layout[level][i];
892 llvmpipe_set_texture_tile_layout(struct llvmpipe_resource *lpr,
893 unsigned face_slice, unsigned level,
894 unsigned x, unsigned y,
895 enum lp_texture_layout layout)
898 assert(resource_is_texture(&lpr->base));
899 assert(x < lpr->tiles_per_row[level]);
900 i = face_slice * lpr->tiles_per_image[level]
901 + y * lpr->tiles_per_row[level] + x;
902 lpr->layout[level][i] = layout;
907 * Set the layout mode for all tiles in a particular image.
910 llvmpipe_set_texture_image_layout(struct llvmpipe_resource *lpr,
911 unsigned face_slice, unsigned level,
912 unsigned width_t, unsigned height_t,
913 enum lp_texture_layout layout)
915 const unsigned start = face_slice * lpr->tiles_per_image[level];
918 for (i = 0; i < width_t * height_t; i++) {
919 lpr->layout[level][start + i] = layout;
925 * Allocate storage for a linear or tile texture image (all cube
926 * faces and all 3D slices.
929 alloc_image_data(struct llvmpipe_resource *lpr, unsigned level,
930 enum lp_texture_layout layout)
932 uint alignment = MAX2(16, util_cpu_caps.cacheline);
937 if (layout == LP_TEX_LAYOUT_TILED) {
938 /* tiled data is stored in regular memory */
939 uint buffer_size = tex_image_size(lpr, level, layout);
940 lpr->tiled[level].data = align_malloc(buffer_size, alignment);
943 assert(layout == LP_TEX_LAYOUT_LINEAR);
945 /* we get the linear memory from the winsys */
946 struct llvmpipe_screen *screen = llvmpipe_screen(lpr->base.screen);
947 struct sw_winsys *winsys = screen->winsys;
949 lpr->linear[0].data =
950 winsys->displaytarget_map(winsys, lpr->dt,
951 PIPE_TRANSFER_READ_WRITE);
954 /* not a display target - allocate regular memory */
955 uint buffer_size = tex_image_size(lpr, level, LP_TEX_LAYOUT_LINEAR);
956 lpr->linear[level].data = align_malloc(buffer_size, alignment);
964 * Return pointer to texture image data (either linear or tiled layout)
965 * for a particular cube face or 3D texture slice.
967 * \param face_slice the cube face or 3D slice of interest
968 * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE
969 * \param layout either LP_TEX_LAYOUT_LINEAR or _TILED or _NONE
972 llvmpipe_get_texture_image(struct llvmpipe_resource *lpr,
973 unsigned face_slice, unsigned level,
974 enum lp_texture_usage usage,
975 enum lp_texture_layout layout)
978 * 'target' refers to the image which we're retrieving (either in
979 * tiled or linear layout).
980 * 'other' refers to the same image but in the other layout. (it may
983 struct llvmpipe_texture_image *target_img;
984 struct llvmpipe_texture_image *other_img;
987 const unsigned width = u_minify(lpr->base.width0, level);
988 const unsigned height = u_minify(lpr->base.height0, level);
989 const unsigned width_t = align(width, TILE_SIZE) / TILE_SIZE;
990 const unsigned height_t = align(height, TILE_SIZE) / TILE_SIZE;
991 enum lp_texture_layout other_layout;
992 boolean only_allocate;
994 assert(layout == LP_TEX_LAYOUT_NONE ||
995 layout == LP_TEX_LAYOUT_TILED ||
996 layout == LP_TEX_LAYOUT_LINEAR);
998 assert(usage == LP_TEX_USAGE_READ ||
999 usage == LP_TEX_USAGE_READ_WRITE ||
1000 usage == LP_TEX_USAGE_WRITE_ALL);
1002 /* check for the special case of layout == LP_TEX_LAYOUT_NONE */
1003 if (layout == LP_TEX_LAYOUT_NONE) {
1004 only_allocate = TRUE;
1005 layout = LP_TEX_LAYOUT_TILED;
1008 only_allocate = FALSE;
1012 assert(lpr->linear[level].data);
1015 /* which is target? which is other? */
1016 if (layout == LP_TEX_LAYOUT_LINEAR) {
1017 target_img = &lpr->linear[level];
1018 other_img = &lpr->tiled[level];
1019 other_layout = LP_TEX_LAYOUT_TILED;
1022 target_img = &lpr->tiled[level];
1023 other_img = &lpr->linear[level];
1024 other_layout = LP_TEX_LAYOUT_LINEAR;
1027 target_data = target_img->data;
1028 other_data = other_img->data;
1031 /* allocate memory for the target image now */
1032 alloc_image_data(lpr, level, layout);
1033 target_data = target_img->data;
1036 if (face_slice > 0) {
1037 unsigned target_offset, other_offset;
1039 target_offset = face_slice * tex_image_face_size(lpr, level, layout);
1040 other_offset = face_slice * tex_image_face_size(lpr, level, other_layout);
1042 target_data = (uint8_t *) target_data + target_offset;
1045 other_data = (uint8_t *) other_data + other_offset;
1049 if (only_allocate) {
1050 /* Just allocating tiled memory. Don't initialize it from the
1051 * linear data if it exists.
1057 /* may need to convert other data to the requested layout */
1058 enum lp_texture_layout new_layout;
1061 /* loop over all image tiles, doing layout conversion where needed */
1062 for (y = 0; y < height_t; y++) {
1063 for (x = 0; x < width_t; x++) {
1064 enum lp_texture_layout cur_layout =
1065 llvmpipe_get_texture_tile_layout(lpr, face_slice, level, x, y);
1068 layout_logic(cur_layout, layout, usage, &new_layout, &convert);
1070 if (convert && other_data && target_data) {
1071 if (layout == LP_TEX_LAYOUT_TILED) {
1072 lp_linear_to_tiled(other_data, target_data,
1073 x * TILE_SIZE, y * TILE_SIZE,
1074 TILE_SIZE, TILE_SIZE,
1076 lpr->row_stride[level],
1077 lpr->tiles_per_row[level]);
1080 assert(layout == LP_TEX_LAYOUT_LINEAR);
1081 lp_tiled_to_linear(other_data, target_data,
1082 x * TILE_SIZE, y * TILE_SIZE,
1083 TILE_SIZE, TILE_SIZE,
1085 lpr->row_stride[level],
1086 lpr->tiles_per_row[level]);
1090 if (new_layout != cur_layout)
1091 llvmpipe_set_texture_tile_layout(lpr, face_slice, level, x, y,
1098 llvmpipe_set_texture_image_layout(lpr, face_slice, level,
1099 width_t, height_t, layout);
1107 * Return pointer to start of a texture image (1D, 2D, 3D, CUBE).
1108 * All cube faces and 3D slices will be converted to the requested
1110 * This is typically used when we're about to sample from a texture.
1113 llvmpipe_get_texture_image_all(struct llvmpipe_resource *lpr,
1115 enum lp_texture_usage usage,
1116 enum lp_texture_layout layout)
1118 const int slices = lpr->num_slices_faces[level];
1124 for (slice = slices - 1; slice >= 0; slice--) {
1125 map = llvmpipe_get_texture_image(lpr, slice, level, usage, layout);
1133 * Get pointer to a linear image (not the tile!) where the tile at (x,y)
1134 * is known to be in linear layout.
1135 * Conversion from tiled to linear will be done if necessary.
1136 * \return pointer to start of image/face (not the tile)
1139 llvmpipe_get_texture_tile_linear(struct llvmpipe_resource *lpr,
1140 unsigned face_slice, unsigned level,
1141 enum lp_texture_usage usage,
1142 unsigned x, unsigned y)
1144 struct llvmpipe_texture_image *linear_img = &lpr->linear[level];
1145 enum lp_texture_layout cur_layout, new_layout;
1146 const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE;
1148 uint8_t *tiled_image, *linear_image;
1150 assert(resource_is_texture(&lpr->base));
1151 assert(x % TILE_SIZE == 0);
1152 assert(y % TILE_SIZE == 0);
1154 if (!linear_img->data) {
1155 /* allocate memory for the linear image now */
1156 alloc_image_data(lpr, level, LP_TEX_LAYOUT_LINEAR);
1159 /* compute address of the slice/face of the image that contains the tile */
1160 tiled_image = llvmpipe_get_texture_image_address(lpr, face_slice, level,
1161 LP_TEX_LAYOUT_TILED);
1162 linear_image = llvmpipe_get_texture_image_address(lpr, face_slice, level,
1163 LP_TEX_LAYOUT_LINEAR);
1165 /* get current tile layout and determine if data conversion is needed */
1166 cur_layout = llvmpipe_get_texture_tile_layout(lpr, face_slice, level, tx, ty);
1168 layout_logic(cur_layout, LP_TEX_LAYOUT_LINEAR, usage,
1169 &new_layout, &convert);
1171 if (convert && tiled_image && linear_image) {
1172 lp_tiled_to_linear(tiled_image, linear_image,
1173 x, y, TILE_SIZE, TILE_SIZE, lpr->base.format,
1174 lpr->row_stride[level],
1175 lpr->tiles_per_row[level]);
1178 if (new_layout != cur_layout)
1179 llvmpipe_set_texture_tile_layout(lpr, face_slice, level, tx, ty, new_layout);
1181 return linear_image;
1186 * Get pointer to tiled data for rendering.
1187 * \return pointer to the tiled data at the given tile position
1190 llvmpipe_get_texture_tile(struct llvmpipe_resource *lpr,
1191 unsigned face_slice, unsigned level,
1192 enum lp_texture_usage usage,
1193 unsigned x, unsigned y)
1195 struct llvmpipe_texture_image *tiled_img = &lpr->tiled[level];
1196 enum lp_texture_layout cur_layout, new_layout;
1197 const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE;
1199 uint8_t *tiled_image, *linear_image;
1200 unsigned tile_offset;
1202 assert(x % TILE_SIZE == 0);
1203 assert(y % TILE_SIZE == 0);
1205 if (!tiled_img->data) {
1206 /* allocate memory for the tiled image now */
1207 alloc_image_data(lpr, level, LP_TEX_LAYOUT_TILED);
1210 /* compute address of the slice/face of the image that contains the tile */
1211 tiled_image = llvmpipe_get_texture_image_address(lpr, face_slice, level,
1212 LP_TEX_LAYOUT_TILED);
1213 linear_image = llvmpipe_get_texture_image_address(lpr, face_slice, level,
1214 LP_TEX_LAYOUT_LINEAR);
1216 /* get current tile layout and see if we need to convert the data */
1217 cur_layout = llvmpipe_get_texture_tile_layout(lpr, face_slice, level, tx, ty);
1219 layout_logic(cur_layout, LP_TEX_LAYOUT_TILED, usage, &new_layout, &convert);
1220 if (convert && linear_image && tiled_image) {
1221 lp_linear_to_tiled(linear_image, tiled_image,
1222 x, y, TILE_SIZE, TILE_SIZE, lpr->base.format,
1223 lpr->row_stride[level],
1224 lpr->tiles_per_row[level]);
1230 if (new_layout != cur_layout)
1231 llvmpipe_set_texture_tile_layout(lpr, face_slice, level, tx, ty, new_layout);
1233 /* compute, return address of the 64x64 tile */
1234 tile_offset = (ty * lpr->tiles_per_row[level] + tx)
1235 * TILE_SIZE * TILE_SIZE * 4;
1237 return (ubyte *) tiled_image + tile_offset;
1242 * Get pointer to tiled data for rendering.
1243 * \return pointer to the tiled data at the given tile position
1246 llvmpipe_unswizzle_cbuf_tile(struct llvmpipe_resource *lpr,
1247 unsigned face_slice, unsigned level,
1248 unsigned x, unsigned y,
1251 struct llvmpipe_texture_image *linear_img = &lpr->linear[level];
1252 const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE;
1253 uint8_t *linear_image;
1255 assert(x % TILE_SIZE == 0);
1256 assert(y % TILE_SIZE == 0);
1258 if (!linear_img->data) {
1259 /* allocate memory for the linear image now */
1260 alloc_image_data(lpr, level, LP_TEX_LAYOUT_LINEAR);
1263 /* compute address of the slice/face of the image that contains the tile */
1264 linear_image = llvmpipe_get_texture_image_address(lpr, face_slice, level,
1265 LP_TEX_LAYOUT_LINEAR);
1268 uint ii = x, jj = y;
1269 uint tile_offset = jj / TILE_SIZE + ii / TILE_SIZE;
1270 uint byte_offset = tile_offset * TILE_SIZE * TILE_SIZE * 4;
1272 /* Note that lp_tiled_to_linear expects the tile parameter to
1273 * point at the first tile in a whole-image sized array. In
1274 * this code, we have only a single tile and have to do some
1275 * pointer arithmetic to figure out where the "image" would have
1278 lp_tiled_to_linear(tile - byte_offset, linear_image,
1279 x, y, TILE_SIZE, TILE_SIZE,
1281 lpr->row_stride[level],
1282 1); /* tiles per row */
1285 llvmpipe_set_texture_tile_layout(lpr, face_slice, level, tx, ty,
1286 LP_TEX_LAYOUT_LINEAR);
1291 * Get pointer to tiled data for rendering.
1292 * \return pointer to the tiled data at the given tile position
1295 llvmpipe_swizzle_cbuf_tile(struct llvmpipe_resource *lpr,
1296 unsigned face_slice, unsigned level,
1297 unsigned x, unsigned y,
1300 uint8_t *linear_image;
1302 assert(x % TILE_SIZE == 0);
1303 assert(y % TILE_SIZE == 0);
1305 /* compute address of the slice/face of the image that contains the tile */
1306 linear_image = llvmpipe_get_texture_image_address(lpr, face_slice, level,
1307 LP_TEX_LAYOUT_LINEAR);
1310 uint ii = x, jj = y;
1311 uint tile_offset = jj / TILE_SIZE + ii / TILE_SIZE;
1312 uint byte_offset = tile_offset * TILE_SIZE * TILE_SIZE * 4;
1314 /* Note that lp_linear_to_tiled expects the tile parameter to
1315 * point at the first tile in a whole-image sized array. In
1316 * this code, we have only a single tile and have to do some
1317 * pointer arithmetic to figure out where the "image" would have
1320 lp_linear_to_tiled(linear_image, tile - byte_offset,
1321 x, y, TILE_SIZE, TILE_SIZE,
1323 lpr->row_stride[level],
1324 1); /* tiles per row */
1330 * Return size of resource in bytes
1333 llvmpipe_resource_size(const struct pipe_resource *resource)
1335 const struct llvmpipe_resource *lpr = llvmpipe_resource_const(resource);
1336 unsigned lvl, size = 0;
1338 for (lvl = 0; lvl <= lpr->base.last_level; lvl++) {
1339 if (lpr->linear[lvl].data)
1340 size += tex_image_size(lpr, lvl, LP_TEX_LAYOUT_LINEAR);
1342 if (lpr->tiled[lvl].data)
1343 size += tex_image_size(lpr, lvl, LP_TEX_LAYOUT_TILED);
1352 llvmpipe_print_resources(void)
1354 struct llvmpipe_resource *lpr;
1355 unsigned n = 0, total = 0;
1357 debug_printf("LLVMPIPE: current resources:\n");
1358 foreach(lpr, &resource_list) {
1359 unsigned size = llvmpipe_resource_size(&lpr->base);
1360 debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n",
1361 lpr->id, (void *) lpr,
1362 lpr->base.width0, lpr->base.height0, lpr->base.depth0,
1363 size, lpr->base.reference.count);
1367 debug_printf("LLVMPIPE: total size of %u resources: %u\n", n, total);
1373 llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen)
1376 /* init linked list for tracking resources */
1378 static boolean first_call = TRUE;
1380 memset(&resource_list, 0, sizeof(resource_list));
1381 make_empty_list(&resource_list);
1387 screen->resource_create = llvmpipe_resource_create;
1388 screen->resource_destroy = llvmpipe_resource_destroy;
1389 screen->resource_from_handle = llvmpipe_resource_from_handle;
1390 screen->resource_get_handle = llvmpipe_resource_get_handle;
1391 screen->user_buffer_create = llvmpipe_user_buffer_create;
1397 llvmpipe_init_context_resource_funcs(struct pipe_context *pipe)
1399 pipe->get_transfer = llvmpipe_get_transfer;
1400 pipe->transfer_destroy = llvmpipe_transfer_destroy;
1401 pipe->transfer_map = llvmpipe_transfer_map;
1402 pipe->transfer_unmap = llvmpipe_transfer_unmap;
1404 pipe->transfer_flush_region = u_default_transfer_flush_region;
1405 pipe->transfer_inline_write = u_default_transfer_inline_write;
1407 pipe->create_surface = llvmpipe_create_surface;
1408 pipe->surface_destroy = llvmpipe_surface_destroy;