From 0639765b2850739af1678f10fc0c5706d5827776 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Fri, 16 Apr 2010 09:10:54 -0600 Subject: Merge the lp-surface-tiling branch into master. This branch implemented dual representations of texture/drawing surfaces: one in the conventional linear layout and the other the tiled layout which is used by the fragment shader pipe. Per-tile flags indicate the layout of each image tile. In many situations this lets us avoid converting image data between the two layouts. Squashed commit of the following: commit 563a7e3cc552fdcfcaf9ac0d4b1683c3ba2ae732 Author: Brian Paul Date: Thu Apr 8 14:48:21 2010 -0600 llvmpipe: convert points/lines to triangles with draw module This isn't the most efficient way to render points/lines but it allows us to run more tests. commit a8aa763e8a717533f2b13bb6ea53cbccbede68c9 Author: Brian Paul Date: Thu Apr 8 14:47:28 2010 -0600 llvmpipe: call llvmpipe_get_texture_tile() for depth/stencil The returned pointer isn't used, but the tile status/layout info gets updated. Helps to fix glReadPixels(DEPTH / STENCIL). commit 463bc64af266194acbea71cd52e26a79b8c8a260 Author: Brian Paul Date: Thu Apr 8 10:58:48 2010 -0600 llvmpipe: add store_color to debug cmd_names list commit 784cc73fb334a9d7b7c93cbd8a1445cdf742ff58 Author: Brian Paul Date: Thu Apr 8 10:57:43 2010 -0600 llvmpipe: fix debug build commit 792c93171ec075664f55720ffed397ac2834a4fc Author: Brian Paul Date: Thu Apr 8 10:49:01 2010 -0600 llvmpipe: fix cube mapping commit 882b1035db88c3dd8aebe28dc971ac30a9ee39e3 Author: Brian Paul Date: Thu Apr 8 09:53:30 2010 -0600 llvmpipe: remove some older/unused code commit b807d32b23145301e8842824664d9f06b9c5502e Author: Brian Paul Date: Thu Apr 8 09:29:50 2010 -0600 llvmpipe: silence warning commit 7b337e64fec92836ccdf9d96216289dd58418e35 Author: Brian Paul Date: Wed Apr 7 17:06:08 2010 -0600 llvmpipe: clean-up, comments in lp_surface_copy() commit c52fa36f249cc652fa8d5fdd94d6574127c08c41 Author: Brian Paul Date: Wed Apr 7 16:51:42 2010 -0600 llvmpipe: overhaul tiled/linear memory management Now we keep per-tile layout info (linear vs. tiled (or neither or both) and convert from one layout to the other on demand. commit 4a50ccfd470547c9be0704005818a87014e9c0e9 Author: Brian Paul Date: Wed Apr 7 16:51:27 2010 -0600 llvmpipe: added tile read/write counters commit b7d0ea9c687ac8773b083791623826fa604adf21 Author: Brian Paul Date: Mon Apr 5 14:54:04 2010 -0600 llvmpipe: rename some functions commit ee45c6e5b95cbd3c8cccc9aa4d45d8aef11e20c4 Author: Brian Paul Date: Mon Apr 5 14:42:15 2010 -0600 llvmpipe: re-org some get block/tile pointer code commit 26ce97c16c0b6520ff1538803baa772d8c3b1280 Author: Brian Paul Date: Mon Apr 5 14:34:13 2010 -0600 llvmpipe: disable bad assertions commit 5c670481248c4d46f87f13bf3af5655925e7002d Author: Brian Paul Date: Fri Apr 2 16:36:11 2010 -0600 llvmpipe: add a special-case optimization to lp_surface_copy() Be more efficient when copying tiled image to linear image. Before, the fallback path was always converting the whole source image to linear. Now we can convert just a sub region. commit faa684645e64d6024b3a11e4e08da825e8220b2e Author: Brian Paul Date: Fri Apr 2 16:15:16 2010 -0600 llvmpipe: assorted texture and tile/line conversion code change s The tiled/linear conversion functions take x/y positions now to allow converting only sub-regions. More texture-related helper functions. commit baad81ec5318d44bfac1e37c7643afc0836607bb Author: Brian Paul Date: Tue Mar 30 13:18:40 2010 -0600 llvmpipe: convert tiled->linear upon PIPE_FLUSH_SWAPBUFFERS If we know we're about to do a swapbuffers we should immediately convert the tiled color tiles to linear instead of later in llvmpipe_texture_unmap() since we can take advantage of threading/ parallelism here. commit 928dd41256811daeddb7506a49a34dbad04beaf8 Author: Brian Paul Date: Tue Mar 30 09:16:58 2010 -0600 llvmpipe: polish-up the llvmpipe_flush() code commit dd6014abcf86c517d159b8175e0eaeb167ea2ef6 Author: Brian Paul Date: Tue Mar 30 09:15:17 2010 -0600 llvmpipe: SETUP_x enum clean-up commit 0b1ce6da2b28a41f3389685ab93e10b43c950f5d Author: Brian Paul Date: Fri Mar 26 10:43:37 2010 -0600 llvmpipe: remove unused vars commit 4562663480f88162ed4452cb05569eecb67f9f39 Author: Brian Paul Date: Fri Mar 26 10:31:55 2010 -0600 llvmpipe: cope with non-existant color/depth buffers The fragment jit functions always grab these pointers, even if they're not used. commit df4329edbaf204ed501f1eac0698b8198178f9af Author: Brian Paul Date: Thu Mar 25 15:20:15 2010 -0600 llvmpipe: do all render target surface mapping/unmapping in the rast code commit 3d0c25d5ba8b8f61e8366d4c97324e45d526ff41 Author: Brian Paul Date: Thu Mar 25 14:31:21 2010 -0600 llvmpipe: map z/stencil buffer on demand like color buffers Plus lots of code clean-up and loose ends taken care of. commit c3b6fddd788aef09b4b84b843b7b1272231151e8 Author: Brian Paul Date: Thu Mar 25 13:15:03 2010 -0600 llvmpipe: remove unused write_zstencil field commit 63374d97836926a6357e9d6dd24a509a8e155c56 Author: Brian Paul Date: Thu Mar 25 09:45:59 2010 -0600 llvmpipe: add missing lp_rast_end() call Fixes crash on window resize when LP_NUM_THREADS=0. commit 92fe9952161cc06f6edc58778e9e5a8b9ea447dc Author: Brian Paul Date: Wed Mar 24 10:15:19 2010 -0600 llvmpipe: add tiled/linear conversion for 16-bit Z images commit 6605fa28c147f30df351da0e4413cab33e4db5da Author: Brian Paul Date: Tue Mar 23 16:06:41 2010 -0600 llvmpipe: implement tiled/linear conversion for Z/stencil images commit 804528d84ffa292ef9d49d3666cdd3fa099ff3ff Author: Brian Paul Date: Tue Mar 23 16:05:45 2010 -0600 llvmpipe: added texture stride comment commit 66a88c012edf670c4ac887a912f02dcff93266dd Author: Brian Paul Date: Tue Mar 23 16:04:07 2010 -0600 llvmpipe: remove unused vars commit e2ca8d1328316dc8b36d5f688c16d109e49a6870 Author: Brian Paul Date: Mon Mar 22 18:53:11 2010 -0600 llvmpipe: checkpoint WIP: overhaul texture/surface mapping Conversion between tiled and linear surfaces is working everywhere now. The LP_TEXTURE_READ/READ_WRITE/WRITE_ALL flags let us avoid unnecessary image layout conversions. Still some loose ends, temporary/debug code, etc. Need to implement tiled/linear conversion for depth/stencil images. commit f2730a03839ee8984c1f537b7cbebba24961397a Author: Brian Paul Date: Mon Mar 22 14:41:58 2010 -0600 llvmpipe: rename/repurpose lp_rast_store_color() commit e192a47552c5d20d2caef452ca7697e2cd852c9b Author: Brian Paul Date: Mon Mar 22 14:38:51 2010 -0600 llvmpipe: remove lp_rast_load_color() commit 3cff0bde4b4ab980e1c3e812700419091527c76b Author: Brian Paul Date: Mon Mar 22 14:11:38 2010 -0600 llvmpipe: remove/consolidate texture image code commit 3a2f08b6a550c69ef5e874f482be30252cbf8bfa Author: Brian Paul Date: Fri Mar 19 17:03:14 2010 -0600 llvmpipe: checkpoint WIP: directly render to tiled texture buffers We're now directly writing colors into the tiled texture image buffers. This is a checkpoint commit with lots of dead code and temporary hacks. Everything will get cleaned up eventually. commit c5ca987e03870849514d4e3c99af143722a09695 Author: Brian Paul Date: Fri Mar 19 16:41:14 2010 -0600 llvmpipe: refactor code, create tile_pixel_offset() commit 2133e8273e937cbac09cd7264d6ce53af9764ddb Author: Brian Paul Date: Fri Mar 19 14:55:11 2010 -0600 llvmpipe: pass LP_TEXTURE_LINEAR/TILED flags around commit b9b9d4b82b01f4588721fdc8444740f859b4a021 Author: Brian Paul Date: Fri Mar 19 14:51:05 2010 -0600 llvmpipe: checkpoint WIP: hanlde co-existing tiled/linear texture data Cube maps are temporarily broken, maybe other things. commit 4cd322e6889940b5f155fcb69041b685b9ef9273 Author: Brian Paul Date: Fri Mar 19 11:34:43 2010 -0600 progs/demos: add other modes/patterns to dissolve demo --- src/gallium/drivers/llvmpipe/lp_texture.c | 648 +++++++++++++++++++++++++++--- 1 file changed, 601 insertions(+), 47 deletions(-) (limited to 'src/gallium/drivers/llvmpipe/lp_texture.c') diff --git a/src/gallium/drivers/llvmpipe/lp_texture.c b/src/gallium/drivers/llvmpipe/lp_texture.c index 61210de8901..7e4e4d5f0be 100644 --- a/src/gallium/drivers/llvmpipe/lp_texture.c +++ b/src/gallium/drivers/llvmpipe/lp_texture.c @@ -30,64 +30,101 @@ * Michel Dänzer */ +#include + #include "pipe/p_context.h" #include "pipe/p_defines.h" -#include "util/u_inlines.h" +#include "util/u_inlines.h" #include "util/u_format.h" #include "util/u_math.h" #include "util/u_memory.h" #include "util/u_transfer.h" #include "lp_context.h" -#include "lp_screen.h" #include "lp_flush.h" +#include "lp_screen.h" +#include "lp_tile_image.h" #include "lp_texture.h" #include "lp_setup.h" #include "lp_tile_size.h" + #include "state_tracker/sw_winsys.h" +static INLINE boolean +resource_is_texture(const struct pipe_resource *resource) +{ + const unsigned tex_binds = (PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_SCANOUT | + PIPE_BIND_SHARED | + PIPE_BIND_DEPTH_STENCIL | + PIPE_BIND_SAMPLER_VIEW); + const struct llvmpipe_resource *lpt = llvmpipe_resource_const(resource); + + return (lpt->base.bind & tex_binds) ? TRUE : FALSE; +} + + + +/** + * Allocate storage for llvmpipe_texture::layout array. + * The number of elements is width_in_tiles * height_in_tiles. + */ +static enum lp_texture_layout * +alloc_layout_array(unsigned width, unsigned height) +{ + const unsigned tx = align(width, TILE_SIZE) / TILE_SIZE; + const unsigned ty = align(height, TILE_SIZE) / TILE_SIZE; + + assert(tx * ty > 0); + assert(LP_TEX_LAYOUT_NONE == 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */ + + return (enum lp_texture_layout *) + calloc(tx * ty, sizeof(enum lp_texture_layout)); +} + + + /** * Conventional allocation path for non-display textures: - * Simple, maximally packed layout. + * Just compute row strides here. Storage is allocated on demand later. */ static boolean -llvmpipe_resource_layout(struct llvmpipe_screen *screen, +llvmpipe_texture_layout(struct llvmpipe_screen *screen, struct llvmpipe_resource *lpt) { struct pipe_resource *pt = &lpt->base; unsigned level; unsigned width = pt->width0; unsigned height = pt->height0; - unsigned depth = pt->depth0; - unsigned buffer_size = 0; + + assert(LP_MAX_TEXTURE_2D_LEVELS <= LP_MAX_TEXTURE_LEVELS); + assert(LP_MAX_TEXTURE_3D_LEVELS <= LP_MAX_TEXTURE_LEVELS); for (level = 0; level <= pt->last_level; level++) { - unsigned nblocksx, nblocksy; + const unsigned num_faces = lpt->base.target == PIPE_TEXTURE_CUBE ? 6 : 1; + unsigned nblocksx, face; /* Allocate storage for whole quads. This is particularly important * for depth surfaces, which are currently stored in a swizzled format. */ nblocksx = util_format_get_nblocksx(pt->format, align(width, TILE_SIZE)); - nblocksy = util_format_get_nblocksy(pt->format, align(height, TILE_SIZE)); - lpt->stride[level] = align(nblocksx * util_format_get_blocksize(pt->format), 16); + lpt->stride[level] = + align(nblocksx * util_format_get_blocksize(pt->format), 16); - lpt->level_offset[level] = buffer_size; + lpt->tiles_per_row[level] = align(width, TILE_SIZE) / TILE_SIZE; - buffer_size += (nblocksy * - ((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) * - lpt->stride[level]); + for (face = 0; face < num_faces; face++) { + lpt->layout[face][level] = alloc_layout_array(width, height); + } width = u_minify(width, 1); height = u_minify(height, 1); - depth = u_minify(depth, 1); } - lpt->data = align_malloc(buffer_size, 16); - - return lpt->data != NULL; + return TRUE; } @@ -104,6 +141,10 @@ llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen, unsigned width = align(lpt->base.width0, TILE_SIZE); unsigned height = align(lpt->base.height0, TILE_SIZE); + lpt->tiles_per_row[0] = align(width, TILE_SIZE) / TILE_SIZE; + + lpt->layout[0][0] = alloc_layout_array(width, height); + lpt->dt = winsys->displaytarget_create(winsys, lpt->base.bind, lpt->base.format, @@ -117,8 +158,9 @@ llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen, static struct pipe_resource * llvmpipe_resource_create(struct pipe_screen *_screen, - const struct pipe_resource *templat) + const struct pipe_resource *templat) { + static unsigned id_counter = 0; struct llvmpipe_screen *screen = llvmpipe_screen(_screen); struct llvmpipe_resource *lpt = CALLOC_STRUCT(llvmpipe_resource); if (!lpt) @@ -128,17 +170,38 @@ llvmpipe_resource_create(struct pipe_screen *_screen, pipe_reference_init(&lpt->base.reference, 1); lpt->base.screen = &screen->base; + assert(lpt->base.bind); + if (lpt->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED)) { + /* displayable surface */ if (!llvmpipe_displaytarget_layout(screen, lpt)) goto fail; + assert(lpt->layout[0][0][0] == LP_TEX_LAYOUT_NONE); + } + else if (lpt->base.bind & (PIPE_BIND_SAMPLER_VIEW | + PIPE_BIND_DEPTH_STENCIL)) { + /* texture map */ + if (!llvmpipe_texture_layout(screen, lpt)) + goto fail; + assert(lpt->layout[0][0][0] == LP_TEX_LAYOUT_NONE); } else { - if (!llvmpipe_resource_layout(screen, lpt)) + /* other data (vertex buffer, const buffer, etc) */ + const enum pipe_format format = templat->format; + const uint w = templat->width0 / util_format_get_blockheight(format); + const uint h = templat->height0 / util_format_get_blockwidth(format); + const uint d = templat->depth0; + const uint bpp = util_format_get_blocksize(format); + const uint bytes = w * h * d * bpp; + lpt->data = align_malloc(bytes, 16); + if (!lpt->data) goto fail; } + lpt->id = id_counter++; + return &lpt->base; fail: @@ -159,8 +222,37 @@ llvmpipe_resource_destroy(struct pipe_screen *pscreen, struct sw_winsys *winsys = screen->winsys; winsys->displaytarget_destroy(winsys, lpt->dt); } - else if (!lpt->userBuffer) { + else if (resource_is_texture(pt)) { /* regular texture */ + const uint num_faces = pt->target == PIPE_TEXTURE_CUBE ? 6 : 1; + uint level, face; + + /* free linear image data */ + for (level = 0; level < Elements(lpt->linear); level++) { + if (lpt->linear[level].data) { + align_free(lpt->linear[level].data); + lpt->linear[level].data = NULL; + } + } + + /* free tiled image data */ + for (level = 0; level < Elements(lpt->tiled); level++) { + if (lpt->tiled[level].data) { + align_free(lpt->tiled[level].data); + lpt->tiled[level].data = NULL; + } + } + + /* free layout flag arrays */ + for (level = 0; level < Elements(lpt->tiled); level++) { + for (face = 0; face < num_faces; face++) { + free(lpt->layout[face][level]); + lpt->layout[face][level] = NULL; + } + } + } + else if (!lpt->userBuffer) { + assert(lpt->data); align_free(lpt->data); } @@ -169,63 +261,88 @@ llvmpipe_resource_destroy(struct pipe_screen *pscreen, /** - * Map a texture. Without any synchronization. + * Map a texture for read/write (rendering). Without any synchronization. */ void * llvmpipe_resource_map(struct pipe_resource *texture, - unsigned usage, unsigned face, unsigned level, - unsigned zslice) + unsigned zslice, + enum lp_texture_usage tex_usage, + enum lp_texture_layout layout) { struct llvmpipe_resource *lpt = llvmpipe_resource(texture); uint8_t *map; + assert(face < 6); + assert(level < LP_MAX_TEXTURE_LEVELS); + + assert(tex_usage == LP_TEX_USAGE_READ || + tex_usage == LP_TEX_USAGE_READ_WRITE || + tex_usage == LP_TEX_USAGE_WRITE_ALL); + + assert(layout == LP_TEX_LAYOUT_NONE || + layout == LP_TEX_LAYOUT_TILED || + layout == LP_TEX_LAYOUT_LINEAR); + if (lpt->dt) { /* display target */ struct llvmpipe_screen *screen = llvmpipe_screen(texture->screen); struct sw_winsys *winsys = screen->winsys; + unsigned dt_usage; + + if (tex_usage == LP_TEX_USAGE_READ) { + dt_usage = PIPE_TRANSFER_READ; + } + else { + dt_usage = PIPE_TRANSFER_READ_WRITE; + } assert(face == 0); assert(level == 0); assert(zslice == 0); /* FIXME: keep map count? */ - map = winsys->displaytarget_map(winsys, lpt->dt, usage); - } - else { - /* regular texture */ - unsigned offset; - unsigned stride; + map = winsys->displaytarget_map(winsys, lpt->dt, dt_usage); - map = lpt->data; + /* install this linear image in texture data structure */ + lpt->linear[level].data = map; - assert(level < LP_MAX_TEXTURE_2D_LEVELS); + map = llvmpipe_get_texture_image(lpt, face, level, tex_usage, layout); + assert(map); - offset = lpt->level_offset[level]; - stride = lpt->stride[level]; + return map; + } + else if (resource_is_texture(texture)) { + /* regular texture */ + const unsigned tex_height = u_minify(texture->height0, level); + const unsigned nblocksy = + util_format_get_nblocksy(texture->format, tex_height); + const unsigned stride = lpt->stride[level]; + unsigned offset = 0; - /* XXX shouldn't that rather be - tex_height = align(u_minify(texture->height0, level), 2) - to account for alignment done in llvmpipe_resource_layout ? - */ if (texture->target == PIPE_TEXTURE_CUBE) { - unsigned tex_height = u_minify(texture->height0, level); - offset += face * util_format_get_nblocksy(texture->format, tex_height) * stride; + /* XXX incorrect + offset = face * nblocksy * stride; + */ } else if (texture->target == PIPE_TEXTURE_3D) { - unsigned tex_height = u_minify(texture->height0, level); - offset += zslice * util_format_get_nblocksy(texture->format, tex_height) * stride; + offset = zslice * nblocksy * stride; } else { assert(face == 0); assert(zslice == 0); + offset = 0; } + map = llvmpipe_get_texture_image(lpt, face, level, tex_usage, layout); + assert(map); map += offset; + return map; + } + else { + return lpt->data; } - - return map; } @@ -249,11 +366,30 @@ llvmpipe_resource_unmap(struct pipe_resource *texture, assert(level == 0); assert(zslice == 0); + /* make sure linear image is up to date */ + (void) llvmpipe_get_texture_image(lpt, 0, 0, + LP_TEX_USAGE_READ, + LP_TEX_LAYOUT_LINEAR); + winsys->displaytarget_unmap(winsys, lpt->dt); } } +void * +llvmpipe_resource_data(struct pipe_resource *resource) +{ + struct llvmpipe_resource *lpt = llvmpipe_resource(resource); + + assert((lpt->base.bind & (PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_SCANOUT | + PIPE_BIND_SHARED | + PIPE_BIND_SAMPLER_VIEW)) == 0); + + return lpt->data; +} + + static struct pipe_resource * llvmpipe_resource_from_handle(struct pipe_screen *screen, const struct pipe_resource *template, @@ -303,7 +439,7 @@ static struct pipe_surface * llvmpipe_get_tex_surface(struct pipe_screen *screen, struct pipe_resource *pt, unsigned face, unsigned level, unsigned zslice, - unsigned usage) + enum lp_texture_usage usage) { struct pipe_surface *ps; @@ -389,6 +525,34 @@ llvmpipe_transfer_map( struct pipe_context *pipe, ubyte *map; struct llvmpipe_resource *lpt; enum pipe_format format; + enum lp_texture_usage tex_usage; + const char *mode; + + assert(transfer->sr.face < 6); + assert(transfer->sr.level < LP_MAX_TEXTURE_LEVELS); + + /* + printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n", + transfer->x, transfer->y, transfer->width, transfer->height, + transfer->texture->width0, + transfer->texture->height0, + transfer->usage); + */ + + if (transfer->usage == PIPE_TRANSFER_READ) { + tex_usage = LP_TEX_USAGE_READ; + mode = "read"; + } + else { + tex_usage = LP_TEX_USAGE_READ_WRITE; + mode = "read/write"; + } + + if (0) { + struct llvmpipe_resource *lpt = llvmpipe_resource(transfer->resource); + printf("transfer map tex %u mode %s\n", lpt->id, mode); + } + assert(transfer->resource); lpt = llvmpipe_resource(transfer->resource); @@ -408,12 +572,13 @@ llvmpipe_transfer_map( struct pipe_context *pipe, FALSE); /* do_not_flush */ map = llvmpipe_resource_map(transfer->resource, - transfer->usage, transfer->sr.face, transfer->sr.level, - transfer->box.z); + transfer->box.z, + tex_usage, LP_TEX_LAYOUT_LINEAR); + - /* May want to different things here depending on read/write nature + /* May want to do different things here depending on read/write nature * of the map: */ if (transfer->usage & PIPE_TRANSFER_WRITE) { @@ -488,6 +653,395 @@ llvmpipe_user_buffer_create(struct pipe_screen *screen, } +/** + * Compute size (in bytes) need to store a texture image / mipmap level, + * for just one cube face. + */ +static unsigned +tex_image_face_size(const struct llvmpipe_resource *lpt, unsigned level, + enum lp_texture_layout layout) +{ + /* for tiled layout, force a 32bpp format */ + enum pipe_format format = layout == LP_TEX_LAYOUT_TILED + ? PIPE_FORMAT_B8G8R8A8_UNORM : lpt->base.format; + const unsigned height = u_minify(lpt->base.height0, level); + const unsigned depth = u_minify(lpt->base.depth0, level); + const unsigned nblocksy = + util_format_get_nblocksy(format, align(height, TILE_SIZE)); + const unsigned buffer_size = + nblocksy * lpt->stride[level] * + (lpt->base.target == PIPE_TEXTURE_3D ? depth : 1); + return buffer_size; +} + + +/** + * Compute size (in bytes) need to store a texture image / mipmap level, + * including all cube faces. + */ +static unsigned +tex_image_size(const struct llvmpipe_resource *lpt, unsigned level, + enum lp_texture_layout layout) +{ + const unsigned buf_size = tex_image_face_size(lpt, level, layout); + const unsigned num_faces = lpt->base.target == PIPE_TEXTURE_CUBE ? 6 : 1; + return buf_size * num_faces; +} + + +/** + * This function encapsulates some complicated logic for determining + * how to convert a tile of image data from linear layout to tiled + * layout, or vice versa. + * \param cur_layout the current tile layout + * \param target_layout the desired tile layout + * \param usage how the tile will be accessed (R/W vs. read-only, etc) + * \param new_layout_return returns the new layout mode + * \param convert_return returns TRUE if image conversion is needed + */ +static void +layout_logic(enum lp_texture_layout cur_layout, + enum lp_texture_layout target_layout, + enum lp_texture_usage usage, + enum lp_texture_layout *new_layout_return, + boolean *convert) +{ + enum lp_texture_layout other_layout, new_layout; + + *convert = FALSE; + + new_layout = 99; /* debug check */ + + if (target_layout == LP_TEX_LAYOUT_LINEAR) { + other_layout = LP_TEX_LAYOUT_TILED; + } + else { + assert(target_layout == LP_TEX_LAYOUT_TILED); + other_layout = LP_TEX_LAYOUT_LINEAR; + } + + new_layout = target_layout; /* may get changed below */ + + if (cur_layout == LP_TEX_LAYOUT_BOTH) { + if (usage == LP_TEX_USAGE_READ) { + new_layout = LP_TEX_LAYOUT_BOTH; + } + } + else if (cur_layout == other_layout) { + if (usage != LP_TEX_USAGE_WRITE_ALL) { + /* need to convert tiled data to linear or vice versa */ + *convert = TRUE; + + if (usage == LP_TEX_USAGE_READ) + new_layout = LP_TEX_LAYOUT_BOTH; + } + } + else { + assert(cur_layout == LP_TEX_LAYOUT_NONE || + cur_layout == target_layout); + } + + assert(new_layout == LP_TEX_LAYOUT_BOTH || + new_layout == target_layout); + + *new_layout_return = new_layout; +} + + +/** + * Return pointer to a texture image. No tiled/linear conversion is done. + */ +void * +llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpt, + unsigned face, unsigned level, + enum lp_texture_layout layout) +{ + struct llvmpipe_texture_image *img; + unsigned face_offset; + + if (layout == LP_TEX_LAYOUT_LINEAR) { + img = &lpt->linear[level]; + } + else { + assert (layout == LP_TEX_LAYOUT_TILED); + img = &lpt->tiled[level]; + } + + if (face > 0) + face_offset = face * tex_image_face_size(lpt, level, layout); + else + face_offset = 0; + + return (ubyte *) img->data + face_offset; +} + + + +/** + * Return pointer to texture image data (either linear or tiled layout). + * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE + * \param layout either LP_TEX_LAYOUT_LINEAR or LP_TEX_LAYOUT_TILED + */ +void * +llvmpipe_get_texture_image(struct llvmpipe_resource *lpt, + unsigned face, unsigned level, + enum lp_texture_usage usage, + enum lp_texture_layout layout) +{ + /* + * 'target' refers to the image which we're retrieving (either in + * tiled or linear layout). + * 'other' refers to the same image but in the other layout. (it may + * or may not exist. + */ + struct llvmpipe_texture_image *target_img; + struct llvmpipe_texture_image *other_img; + void *target_data; + void *other_data; + const unsigned width = u_minify(lpt->base.width0, level); + const unsigned height = u_minify(lpt->base.height0, level); + const unsigned width_t = align(width, TILE_SIZE) / TILE_SIZE; + const unsigned height_t = align(height, TILE_SIZE) / TILE_SIZE; + enum lp_texture_layout other_layout; + + assert(layout == LP_TEX_LAYOUT_NONE || + layout == LP_TEX_LAYOUT_TILED || + layout == LP_TEX_LAYOUT_LINEAR); + + assert(usage == LP_TEX_USAGE_READ || + usage == LP_TEX_USAGE_READ_WRITE || + usage == LP_TEX_USAGE_WRITE_ALL); + + if (lpt->dt) { + assert(lpt->linear[level].data); + } + + /* which is target? which is other? */ + if (layout == LP_TEX_LAYOUT_LINEAR) { + target_img = &lpt->linear[level]; + other_img = &lpt->tiled[level]; + other_layout = LP_TEX_LAYOUT_TILED; + } + else { + target_img = &lpt->tiled[level]; + other_img = &lpt->linear[level]; + other_layout = LP_TEX_LAYOUT_LINEAR; + } + + target_data = target_img->data; + other_data = other_img->data; + + if (!target_data) { + /* allocate memory for the target image now */ + unsigned buffer_size = tex_image_size(lpt, level, layout); + target_img->data = align_malloc(buffer_size, 16); + target_data = target_img->data; + } + + if (face > 0) { + unsigned offset = face * tex_image_face_size(lpt, level, layout); + if (target_data) { + target_data = (uint8_t *) target_data + offset; + } + if (other_data) { + other_data = (uint8_t *) other_data + offset; + } + } + + if (layout == LP_TEX_LAYOUT_NONE) { + /* just allocating memory */ + return target_data; + } + + if (other_data) { + /* may need to convert other data to the requested layout */ + enum lp_texture_layout new_layout; + unsigned x, y, i = 0; + + /* loop over all image tiles, doing layout conversion where needed */ + for (y = 0; y < height_t; y++) { + for (x = 0; x < width_t; x++) { + enum lp_texture_layout cur_layout = lpt->layout[face][level][i]; + boolean convert; + + layout_logic(cur_layout, layout, usage, &new_layout, &convert); + + if (convert) { + if (layout == LP_TEX_LAYOUT_TILED) { + lp_linear_to_tiled(other_data, target_data, + x * TILE_SIZE, y * TILE_SIZE, + TILE_SIZE, TILE_SIZE, + lpt->base.format, + lpt->stride[level]); + } + else { + lp_tiled_to_linear(other_data, target_data, + x * TILE_SIZE, y * TILE_SIZE, + TILE_SIZE, TILE_SIZE, + lpt->base.format, + lpt->stride[level]); + } + } + + lpt->layout[face][level][i] = new_layout; + i++; + } + } + } + else { + /* no other data */ + unsigned i; + for (i = 0; i < width_t * height_t; i++) { + lpt->layout[face][level][i] = layout; + } + } + + assert(target_data); + + return target_data; +} + + +static INLINE enum lp_texture_layout +llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource *lpt, + unsigned face, unsigned level, + unsigned x, unsigned y) +{ + uint i; + assert(resource_is_texture(&lpt->base)); + assert(x < lpt->tiles_per_row[level]); + i = y * lpt->tiles_per_row[level] + x; + return lpt->layout[face][level][i]; +} + + +static INLINE void +llvmpipe_set_texture_tile_layout(struct llvmpipe_resource *lpt, + unsigned face, unsigned level, + unsigned x, unsigned y, + enum lp_texture_layout layout) +{ + uint i; + assert(resource_is_texture(&lpt->base)); + assert(x < lpt->tiles_per_row[level]); + i = y * lpt->tiles_per_row[level] + x; + lpt->layout[face][level][i] = layout; +} + + +/** + * Get pointer to a linear image where the tile at (x,y) is known to be + * in linear layout. + * Conversion from tiled to linear will be done if necessary. + * \return pointer to start of image/face (not the tile) + */ +ubyte * +llvmpipe_get_texture_tile_linear(struct llvmpipe_resource *lpt, + unsigned face, unsigned level, + enum lp_texture_usage usage, + unsigned x, unsigned y) +{ + struct llvmpipe_texture_image *tiled_img = &lpt->tiled[level]; + struct llvmpipe_texture_image *linear_img = &lpt->linear[level]; + enum lp_texture_layout cur_layout, new_layout; + const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE; + boolean convert; + + assert(resource_is_texture(&lpt->base)); + assert(x % TILE_SIZE == 0); + assert(y % TILE_SIZE == 0); + + if (!linear_img->data) { + /* allocate memory for the tiled image now */ + unsigned buffer_size = tex_image_size(lpt, level, LP_TEX_LAYOUT_LINEAR); + linear_img->data = align_malloc(buffer_size, 16); + } + + cur_layout = llvmpipe_get_texture_tile_layout(lpt, face, level, tx, ty); + + layout_logic(cur_layout, LP_TEX_LAYOUT_LINEAR, usage, + &new_layout, &convert); + + if (convert) { + lp_tiled_to_linear(tiled_img->data, linear_img->data, + x, y, TILE_SIZE, TILE_SIZE, lpt->base.format, + lpt->stride[level]); + } + + if (new_layout != cur_layout) + llvmpipe_set_texture_tile_layout(lpt, face, level, tx, ty, new_layout); + + if (face > 0) { + unsigned offset + = face * tex_image_face_size(lpt, level, LP_TEX_LAYOUT_LINEAR); + return (ubyte *) linear_img->data + offset; + } + else { + return linear_img->data; + } +} + + +/** + * Get pointer to tiled data for rendering. + * \return pointer to the tiled data at the given tile position + */ +ubyte * +llvmpipe_get_texture_tile(struct llvmpipe_resource *lpt, + unsigned face, unsigned level, + enum lp_texture_usage usage, + unsigned x, unsigned y) +{ + const unsigned width = u_minify(lpt->base.width0, level); + struct llvmpipe_texture_image *tiled_img = &lpt->tiled[level]; + struct llvmpipe_texture_image *linear_img = &lpt->linear[level]; + enum lp_texture_layout cur_layout, new_layout; + const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE; + boolean convert; + + assert(x % TILE_SIZE == 0); + assert(y % TILE_SIZE == 0); + + if (!tiled_img->data) { + /* allocate memory for the tiled image now */ + unsigned buffer_size = tex_image_size(lpt, level, LP_TEX_LAYOUT_TILED); + tiled_img->data = align_malloc(buffer_size, 16); + } + + cur_layout = llvmpipe_get_texture_tile_layout(lpt, face, level, tx, ty); + + layout_logic(cur_layout, LP_TEX_LAYOUT_TILED, usage, &new_layout, &convert); + if (convert) { + lp_linear_to_tiled(linear_img->data, tiled_img->data, + x, y, TILE_SIZE, TILE_SIZE, lpt->base.format, + lpt->stride[level]); + } + + if (new_layout != cur_layout) + llvmpipe_set_texture_tile_layout(lpt, face, level, tx, ty, new_layout); + + /* compute, return address of the 64x64 tile */ + { + unsigned tiles_per_row, tile_offset, face_offset; + + tiles_per_row = align(width, TILE_SIZE) / TILE_SIZE; + + assert(tiles_per_row == lpt->tiles_per_row[level]); + + tile_offset = ty * tiles_per_row + tx; + tile_offset *= TILE_SIZE * TILE_SIZE * 4; + + assert(tiled_img->data); + + face_offset = (face > 0) + ? (face * tex_image_face_size(lpt, level, LP_TEX_LAYOUT_TILED)) + : 0; + + return (ubyte *) tiled_img->data + face_offset + tile_offset; + } +} + + void llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen) { -- cgit v1.2.3