diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_texture.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_texture.c | 1288 |
1 files changed, 1288 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_texture.c b/src/gallium/drivers/llvmpipe/lp_texture.c new file mode 100644 index 0000000000..0d526ead89 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_texture.c @@ -0,0 +1,1288 @@ +/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Michel Dänzer <michel@tungstengraphics.com> + */ + +#include <stdio.h> + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" + +#include "util/u_inlines.h" +#include "util/u_format.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "util/u_simple_list.h" +#include "util/u_transfer.h" + +#include "lp_context.h" +#include "lp_flush.h" +#include "lp_screen.h" +#include "lp_tile_image.h" +#include "lp_texture.h" +#include "lp_setup.h" + +#include "state_tracker/sw_winsys.h" + + +#ifdef DEBUG +static struct llvmpipe_resource resource_list; +#endif + + +static INLINE boolean +resource_is_texture(const struct pipe_resource *resource) +{ + switch (resource->target) { + case PIPE_BUFFER: + return FALSE; + case PIPE_TEXTURE_1D: + case PIPE_TEXTURE_2D: + case PIPE_TEXTURE_3D: + case PIPE_TEXTURE_CUBE: + return TRUE; + default: + assert(0); + return 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 num_slices, unsigned width, unsigned height) +{ + const unsigned tx = align(width, TILE_SIZE) / TILE_SIZE; + const unsigned ty = align(height, TILE_SIZE) / TILE_SIZE; + + assert(num_slices * tx * ty > 0); + assert(LP_TEX_LAYOUT_NONE == 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */ + + return (enum lp_texture_layout *) + CALLOC(num_slices * tx * ty, sizeof(enum lp_texture_layout)); +} + + + +/** + * Conventional allocation path for non-display textures: + * Just compute row strides here. Storage is allocated on demand later. + */ +static boolean +llvmpipe_texture_layout(struct llvmpipe_screen *screen, + struct llvmpipe_resource *lpr) +{ + struct pipe_resource *pt = &lpr->base; + unsigned level; + unsigned width = pt->width0; + unsigned height = pt->height0; + unsigned depth = pt->depth0; + + 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++) { + + /* Row stride and image stride (for linear layout) */ + { + unsigned alignment, nblocksx, nblocksy, block_size; + + /* For non-compressed formats we need to align the texture size + * to the tile size to facilitate render-to-texture. + */ + if (util_format_is_compressed(pt->format)) + alignment = 1; + else + alignment = TILE_SIZE; + + nblocksx = util_format_get_nblocksx(pt->format, + align(width, alignment)); + nblocksy = util_format_get_nblocksy(pt->format, + align(height, alignment)); + block_size = util_format_get_blocksize(pt->format); + + lpr->row_stride[level] = align(nblocksx * block_size, 16); + + lpr->img_stride[level] = lpr->row_stride[level] * nblocksy; + } + + /* Size of the image in tiles (for tiled layout) */ + { + const unsigned width_t = align(width, TILE_SIZE) / TILE_SIZE; + const unsigned height_t = align(height, TILE_SIZE) / TILE_SIZE; + lpr->tiles_per_row[level] = width_t; + lpr->tiles_per_image[level] = width_t * height_t; + } + + /* Number of 3D image slices or cube faces */ + { + unsigned num_slices; + + if (lpr->base.target == PIPE_TEXTURE_CUBE) + num_slices = 6; + else if (lpr->base.target == PIPE_TEXTURE_3D) + num_slices = depth; + else + num_slices = 1; + + lpr->num_slices_faces[level] = num_slices; + + lpr->layout[level] = alloc_layout_array(num_slices, width, height); + } + + /* Compute size of next mipmap level */ + width = u_minify(width, 1); + height = u_minify(height, 1); + depth = u_minify(depth, 1); + } + + return TRUE; +} + + + +static boolean +llvmpipe_displaytarget_layout(struct llvmpipe_screen *screen, + struct llvmpipe_resource *lpr) +{ + struct sw_winsys *winsys = screen->winsys; + + /* Round up the surface size to a multiple of the tile size to + * avoid tile clipping. + */ + const unsigned width = align(lpr->base.width0, TILE_SIZE); + const unsigned height = align(lpr->base.height0, TILE_SIZE); + const unsigned width_t = align(width, TILE_SIZE) / TILE_SIZE; + const unsigned height_t = align(height, TILE_SIZE) / TILE_SIZE; + + lpr->tiles_per_row[0] = width_t; + lpr->tiles_per_image[0] = width_t * height_t; + lpr->num_slices_faces[0] = 1; + lpr->img_stride[0] = 0; + + lpr->layout[0] = alloc_layout_array(1, width, height); + //lpr->layout[0][0] = LP_TEX_LAYOUT_LINEAR; + + lpr->dt = winsys->displaytarget_create(winsys, + lpr->base.bind, + lpr->base.format, + width, height, + 16, + &lpr->row_stride[0] ); + + return lpr->dt != NULL; +} + + +static struct pipe_resource * +llvmpipe_resource_create(struct pipe_screen *_screen, + const struct pipe_resource *templat) +{ + static unsigned id_counter = 0; + struct llvmpipe_screen *screen = llvmpipe_screen(_screen); + struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource); + if (!lpr) + return NULL; + + lpr->base = *templat; + pipe_reference_init(&lpr->base.reference, 1); + lpr->base.screen = &screen->base; + + /* assert(lpr->base.bind); */ + + if (resource_is_texture(&lpr->base)) { + if (lpr->base.bind & PIPE_BIND_DISPLAY_TARGET) { + /* displayable surface */ + if (!llvmpipe_displaytarget_layout(screen, lpr)) + goto fail; + assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE); + } + else { + /* texture map */ + if (!llvmpipe_texture_layout(screen, lpr)) + goto fail; + assert(lpr->layout[0][0] == LP_TEX_LAYOUT_NONE); + } + assert(lpr->layout[0]); + } + else { + /* 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; + lpr->data = align_malloc(bytes, 16); + if (!lpr->data) + goto fail; + } + + lpr->id = id_counter++; + +#ifdef DEBUG + insert_at_tail(&resource_list, lpr); +#endif + + return &lpr->base; + + fail: + FREE(lpr); + return NULL; +} + + +static void +llvmpipe_resource_destroy(struct pipe_screen *pscreen, + struct pipe_resource *pt) +{ + struct llvmpipe_screen *screen = llvmpipe_screen(pscreen); + struct llvmpipe_resource *lpr = llvmpipe_resource(pt); + + if (lpr->dt) { + /* display target */ + struct sw_winsys *winsys = screen->winsys; + winsys->displaytarget_destroy(winsys, lpr->dt); + + if (lpr->tiled[0].data) { + align_free(lpr->tiled[0].data); + lpr->tiled[0].data = NULL; + } + + FREE(lpr->layout[0]); + } + else if (resource_is_texture(pt)) { + /* regular texture */ + uint level; + + /* free linear image data */ + for (level = 0; level < Elements(lpr->linear); level++) { + if (lpr->linear[level].data) { + align_free(lpr->linear[level].data); + lpr->linear[level].data = NULL; + } + } + + /* free tiled image data */ + for (level = 0; level < Elements(lpr->tiled); level++) { + if (lpr->tiled[level].data) { + align_free(lpr->tiled[level].data); + lpr->tiled[level].data = NULL; + } + } + + /* free layout flag arrays */ + for (level = 0; level < Elements(lpr->tiled); level++) { + FREE(lpr->layout[level]); + lpr->layout[level] = NULL; + } + } + else if (!lpr->userBuffer) { + assert(lpr->data); + align_free(lpr->data); + } + +#ifdef DEBUG + if (lpr->next) + remove_from_list(lpr); +#endif + + FREE(lpr); +} + + +/** + * Map a resource for read/write. + */ +void * +llvmpipe_resource_map(struct pipe_resource *resource, + unsigned face, + unsigned level, + unsigned zslice, + enum lp_texture_usage tex_usage, + enum lp_texture_layout layout) +{ + struct llvmpipe_resource *lpr = llvmpipe_resource(resource); + 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 (lpr->dt) { + /* display target */ + struct llvmpipe_screen *screen = llvmpipe_screen(resource->screen); + struct sw_winsys *winsys = screen->winsys; + unsigned dt_usage; + uint8_t *map2; + + 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, lpr->dt, dt_usage); + + /* install this linear image in texture data structure */ + lpr->linear[level].data = map; + + /* make sure tiled data gets converted to linear data */ + map2 = llvmpipe_get_texture_image(lpr, 0, 0, tex_usage, layout); + if (layout == LP_TEX_LAYOUT_LINEAR) + assert(map == map2); + + return map2; + } + else if (resource_is_texture(resource)) { + /* regular texture */ + if (resource->target != PIPE_TEXTURE_CUBE) { + assert(face == 0); + } + if (resource->target != PIPE_TEXTURE_3D) { + assert(zslice == 0); + } + + map = llvmpipe_get_texture_image(lpr, face + zslice, level, + tex_usage, layout); + assert(map); + return map; + } + else { + return lpr->data; + } +} + + +/** + * Unmap a resource. + */ +void +llvmpipe_resource_unmap(struct pipe_resource *resource, + unsigned face, + unsigned level, + unsigned zslice) +{ + struct llvmpipe_resource *lpr = llvmpipe_resource(resource); + + if (lpr->dt) { + /* display target */ + struct llvmpipe_screen *lp_screen = llvmpipe_screen(resource->screen); + struct sw_winsys *winsys = lp_screen->winsys; + + assert(face == 0); + assert(level == 0); + assert(zslice == 0); + + /* make sure linear image is up to date */ + (void) llvmpipe_get_texture_image(lpr, face + zslice, level, + LP_TEX_USAGE_READ, + LP_TEX_LAYOUT_LINEAR); + + winsys->displaytarget_unmap(winsys, lpr->dt); + } +} + + +void * +llvmpipe_resource_data(struct pipe_resource *resource) +{ + struct llvmpipe_resource *lpr = llvmpipe_resource(resource); + + assert(!resource_is_texture(resource)); + + return lpr->data; +} + + +static struct pipe_resource * +llvmpipe_resource_from_handle(struct pipe_screen *screen, + const struct pipe_resource *template, + struct winsys_handle *whandle) +{ + struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys; + struct llvmpipe_resource *lpr = CALLOC_STRUCT(llvmpipe_resource); + if (!lpr) + return NULL; + + lpr->base = *template; + pipe_reference_init(&lpr->base.reference, 1); + lpr->base.screen = screen; + + lpr->dt = winsys->displaytarget_from_handle(winsys, + template, + whandle, + &lpr->row_stride[0]); + if (!lpr->dt) + goto fail; + + return &lpr->base; + + fail: + FREE(lpr); + return NULL; +} + + +static boolean +llvmpipe_resource_get_handle(struct pipe_screen *screen, + struct pipe_resource *pt, + struct winsys_handle *whandle) +{ + struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys; + struct llvmpipe_resource *lpr = llvmpipe_resource(pt); + + assert(lpr->dt); + if (!lpr->dt) + return FALSE; + + return winsys->displaytarget_get_handle(winsys, lpr->dt, whandle); +} + + +static struct pipe_surface * +llvmpipe_get_tex_surface(struct pipe_screen *screen, + struct pipe_resource *pt, + unsigned face, unsigned level, unsigned zslice, + unsigned usage) +{ + struct pipe_surface *ps; + + assert(level <= pt->last_level); + + ps = CALLOC_STRUCT(pipe_surface); + if (ps) { + pipe_reference_init(&ps->reference, 1); + pipe_resource_reference(&ps->texture, pt); + ps->format = pt->format; + ps->width = u_minify(pt->width0, level); + ps->height = u_minify(pt->height0, level); + ps->usage = usage; + + ps->face = face; + ps->level = level; + ps->zslice = zslice; + } + return ps; +} + + +static void +llvmpipe_tex_surface_destroy(struct pipe_surface *surf) +{ + /* Effectively do the texture_update work here - if texture images + * needed post-processing to put them into hardware layout, this is + * where it would happen. For llvmpipe, nothing to do. + */ + assert(surf->texture); + pipe_resource_reference(&surf->texture, NULL); + FREE(surf); +} + + +static struct pipe_transfer * +llvmpipe_get_transfer(struct pipe_context *pipe, + struct pipe_resource *resource, + struct pipe_subresource sr, + unsigned usage, + const struct pipe_box *box) +{ + struct llvmpipe_resource *lprex = llvmpipe_resource(resource); + struct llvmpipe_transfer *lpr; + + assert(resource); + assert(sr.level <= resource->last_level); + + /* + * Transfers, like other pipe operations, must happen in order, so flush the + * context if necessary. + */ + if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) { + boolean read_only = !(usage & PIPE_TRANSFER_WRITE); + boolean do_not_block = !!(usage & PIPE_TRANSFER_DONTBLOCK); + if (!llvmpipe_flush_resource(pipe, resource, + sr.face, sr.level, + 0, /* flush_flags */ + read_only, + TRUE, /* cpu_access */ + do_not_block)) { + /* + * It would have blocked, but state tracker requested no to. + */ + assert(do_not_block); + return NULL; + } + } + + lpr = CALLOC_STRUCT(llvmpipe_transfer); + if (lpr) { + struct pipe_transfer *pt = &lpr->base; + pipe_resource_reference(&pt->resource, resource); + pt->box = *box; + pt->sr = sr; + pt->stride = lprex->row_stride[sr.level]; + pt->slice_stride = lprex->img_stride[sr.level]; + pt->usage = usage; + + return pt; + } + return NULL; +} + + +static void +llvmpipe_transfer_destroy(struct pipe_context *pipe, + struct pipe_transfer *transfer) +{ + /* Effectively do the texture_update work here - if texture images + * needed post-processing to put them into hardware layout, this is + * where it would happen. For llvmpipe, nothing to do. + */ + assert (transfer->resource); + pipe_resource_reference(&transfer->resource, NULL); + FREE(transfer); +} + + +static void * +llvmpipe_transfer_map( struct pipe_context *pipe, + struct pipe_transfer *transfer ) +{ + struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen); + ubyte *map; + struct llvmpipe_resource *lpr; + 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 *lpr = llvmpipe_resource(transfer->resource); + printf("transfer map tex %u mode %s\n", lpr->id, mode); + } + + + assert(transfer->resource); + lpr = llvmpipe_resource(transfer->resource); + format = lpr->base.format; + + map = llvmpipe_resource_map(transfer->resource, + transfer->sr.face, + transfer->sr.level, + transfer->box.z, + tex_usage, LP_TEX_LAYOUT_LINEAR); + + + /* May want to do different things here depending on read/write nature + * of the map: + */ + if (transfer->usage & PIPE_TRANSFER_WRITE) { + /* Do something to notify sharing contexts of a texture change. + */ + screen->timestamp++; + } + + map += + transfer->box.y / util_format_get_blockheight(format) * transfer->stride + + transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); + + return map; +} + + +static void +llvmpipe_transfer_unmap(struct pipe_context *pipe, + struct pipe_transfer *transfer) +{ + assert(transfer->resource); + + llvmpipe_resource_unmap(transfer->resource, + transfer->sr.face, + transfer->sr.level, + transfer->box.z); +} + +static unsigned int +llvmpipe_is_resource_referenced( struct pipe_context *pipe, + struct pipe_resource *presource, + unsigned face, unsigned level) +{ + struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe ); + + if (presource->target == PIPE_BUFFER) + return PIPE_UNREFERENCED; + + return lp_setup_is_resource_referenced(llvmpipe->setup, presource); +} + + + +/** + * Create buffer which wraps user-space data. + */ +static struct pipe_resource * +llvmpipe_user_buffer_create(struct pipe_screen *screen, + void *ptr, + unsigned bytes, + unsigned bind_flags) +{ + struct llvmpipe_resource *buffer; + + buffer = CALLOC_STRUCT(llvmpipe_resource); + if(!buffer) + return NULL; + + pipe_reference_init(&buffer->base.reference, 1); + buffer->base.screen = screen; + buffer->base.format = PIPE_FORMAT_R8_UNORM; /* ?? */ + buffer->base.bind = bind_flags; + buffer->base.usage = PIPE_USAGE_IMMUTABLE; + buffer->base.flags = 0; + buffer->base.width0 = bytes; + buffer->base.height0 = 1; + buffer->base.depth0 = 1; + buffer->userBuffer = TRUE; + buffer->data = ptr; + + return &buffer->base; +} + + +/** + * Compute size (in bytes) need to store a texture image / mipmap level, + * for just one cube face or one 3D texture slice + */ +static unsigned +tex_image_face_size(const struct llvmpipe_resource *lpr, unsigned level, + enum lp_texture_layout layout) +{ + const unsigned width = u_minify(lpr->base.width0, level); + const unsigned height = u_minify(lpr->base.height0, level); + + assert(layout == LP_TEX_LAYOUT_TILED || + layout == LP_TEX_LAYOUT_LINEAR); + + if (layout == LP_TEX_LAYOUT_TILED) { + /* for tiled layout, force a 32bpp format */ + const enum pipe_format format = PIPE_FORMAT_B8G8R8A8_UNORM; + const unsigned block_size = util_format_get_blocksize(format); + const unsigned nblocksy = + util_format_get_nblocksy(format, align(height, TILE_SIZE)); + const unsigned nblocksx = + util_format_get_nblocksx(format, align(width, TILE_SIZE)); + const unsigned buffer_size = block_size * nblocksy * nblocksx; + return buffer_size; + } + else { + /* we already computed this */ + return lpr->img_stride[level]; + } +} + + +/** + * Compute size (in bytes) need to store a texture image / mipmap level, + * including all cube faces or 3D image slices + */ +static unsigned +tex_image_size(const struct llvmpipe_resource *lpr, unsigned level, + enum lp_texture_layout layout) +{ + const unsigned buf_size = tex_image_face_size(lpr, level, layout); + return buf_size * lpr->num_slices_faces[level]; +} + + +/** + * 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 2D texture image/face/slice. + * No tiled/linear conversion is done. + */ +ubyte * +llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + enum lp_texture_layout layout) +{ + struct llvmpipe_texture_image *img; + unsigned offset; + + if (layout == LP_TEX_LAYOUT_LINEAR) { + img = &lpr->linear[level]; + } + else { + assert (layout == LP_TEX_LAYOUT_TILED); + img = &lpr->tiled[level]; + } + + if (face_slice > 0) + offset = face_slice * tex_image_face_size(lpr, level, layout); + else + offset = 0; + + return (ubyte *) img->data + offset; +} + + +static INLINE enum lp_texture_layout +llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + unsigned x, unsigned y) +{ + uint i; + assert(resource_is_texture(&lpr->base)); + assert(x < lpr->tiles_per_row[level]); + i = face_slice * lpr->tiles_per_image[level] + + y * lpr->tiles_per_row[level] + x; + return lpr->layout[level][i]; +} + + +static INLINE void +llvmpipe_set_texture_tile_layout(struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + unsigned x, unsigned y, + enum lp_texture_layout layout) +{ + uint i; + assert(resource_is_texture(&lpr->base)); + assert(x < lpr->tiles_per_row[level]); + i = face_slice * lpr->tiles_per_image[level] + + y * lpr->tiles_per_row[level] + x; + lpr->layout[level][i] = layout; +} + + +/** + * Set the layout mode for all tiles in a particular image. + */ +static INLINE void +llvmpipe_set_texture_image_layout(struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + unsigned width_t, unsigned height_t, + enum lp_texture_layout layout) +{ + const unsigned start = face_slice * lpr->tiles_per_image[level]; + unsigned i; + + for (i = 0; i < width_t * height_t; i++) { + lpr->layout[level][start + i] = layout; + } +} + + +/** + * Allocate storage for a linear or tile texture image (all cube + * faces and all 3D slices. + */ +static void +alloc_image_data(struct llvmpipe_resource *lpr, unsigned level, + enum lp_texture_layout layout) +{ + if (lpr->dt) + assert(level == 0); + + if (layout == LP_TEX_LAYOUT_TILED) { + /* tiled data is stored in regular memory */ + uint buffer_size = tex_image_size(lpr, level, layout); + lpr->tiled[level].data = align_malloc(buffer_size, 16); + } + else { + assert(layout == LP_TEX_LAYOUT_LINEAR); + if (lpr->dt) { + /* we get the linear memory from the winsys */ + struct llvmpipe_screen *screen = llvmpipe_screen(lpr->base.screen); + struct sw_winsys *winsys = screen->winsys; + + lpr->linear[0].data = + winsys->displaytarget_map(winsys, lpr->dt, + PIPE_TRANSFER_READ_WRITE); + } + else { + /* not a display target - allocate regular memory */ + uint buffer_size = tex_image_size(lpr, level, LP_TEX_LAYOUT_LINEAR); + lpr->linear[level].data = align_malloc(buffer_size, 16); + } + } +} + + + +/** + * Return pointer to texture image data (either linear or tiled layout) + * for a particular cube face or 3D texture slice. + * + * \param face_slice the cube face or 3D slice of interest + * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE + * \param layout either LP_TEX_LAYOUT_LINEAR or _TILED or _NONE + */ +void * +llvmpipe_get_texture_image(struct llvmpipe_resource *lpr, + unsigned face_slice, 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(lpr->base.width0, level); + const unsigned height = u_minify(lpr->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; + boolean only_allocate; + + 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); + + /* check for the special case of layout == LP_TEX_LAYOUT_NONE */ + if (layout == LP_TEX_LAYOUT_NONE) { + only_allocate = TRUE; + layout = LP_TEX_LAYOUT_TILED; + } + else { + only_allocate = FALSE; + } + + if (lpr->dt) { + assert(lpr->linear[level].data); + } + + /* which is target? which is other? */ + if (layout == LP_TEX_LAYOUT_LINEAR) { + target_img = &lpr->linear[level]; + other_img = &lpr->tiled[level]; + other_layout = LP_TEX_LAYOUT_TILED; + } + else { + target_img = &lpr->tiled[level]; + other_img = &lpr->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 */ + alloc_image_data(lpr, level, layout); + target_data = target_img->data; + } + + if (face_slice > 0) { + unsigned target_offset, other_offset; + + target_offset = face_slice * tex_image_face_size(lpr, level, layout); + other_offset = face_slice * tex_image_face_size(lpr, level, other_layout); + if (target_data) { + target_data = (uint8_t *) target_data + target_offset; + } + if (other_data) { + other_data = (uint8_t *) other_data + other_offset; + } + } + + if (only_allocate) { + /* Just allocating tiled memory. Don't initialize it from the + * linear data if it exists. + */ + 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; + + /* 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 = + llvmpipe_get_texture_tile_layout(lpr, face_slice, level, x, y); + 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, + lpr->base.format, + lpr->row_stride[level], + lpr->tiles_per_row[level]); + } + else { + assert(layout == LP_TEX_LAYOUT_LINEAR); + lp_tiled_to_linear(other_data, target_data, + x * TILE_SIZE, y * TILE_SIZE, + TILE_SIZE, TILE_SIZE, + lpr->base.format, + lpr->row_stride[level], + lpr->tiles_per_row[level]); + } + } + + if (new_layout != cur_layout) + llvmpipe_set_texture_tile_layout(lpr, face_slice, level, x, y, + new_layout); + } + } + } + else { + /* no other data */ + llvmpipe_set_texture_image_layout(lpr, face_slice, level, + width_t, height_t, layout); + } + + assert(target_data); + + return target_data; +} + + +/** + * Return pointer to start of a texture image (1D, 2D, 3D, CUBE). + * All cube faces and 3D slices will be converted to the requested + * layout if needed. + * This is typically used when we're about to sample from a texture. + */ +void * +llvmpipe_get_texture_image_all(struct llvmpipe_resource *lpr, + unsigned level, + enum lp_texture_usage usage, + enum lp_texture_layout layout) +{ + const int slices = lpr->num_slices_faces[level]; + int slice; + void *map = NULL; + + assert(slices > 0); + + for (slice = slices - 1; slice >= 0; slice--) { + map = llvmpipe_get_texture_image(lpr, slice, level, usage, layout); + } + + return map; +} + + +/** + * Get pointer to a linear image (not the tile!) 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 *lpr, + unsigned face_slice, unsigned level, + enum lp_texture_usage usage, + unsigned x, unsigned y) +{ + struct llvmpipe_texture_image *linear_img = &lpr->linear[level]; + enum lp_texture_layout cur_layout, new_layout; + const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE; + boolean convert; + uint8_t *tiled_image, *linear_image; + + assert(resource_is_texture(&lpr->base)); + assert(x % TILE_SIZE == 0); + assert(y % TILE_SIZE == 0); + + if (!linear_img->data) { + /* allocate memory for the linear image now */ + alloc_image_data(lpr, level, LP_TEX_LAYOUT_LINEAR); + } + + /* compute address of the slice/face of the image that contains the tile */ + tiled_image = llvmpipe_get_texture_image_address(lpr, face_slice, level, + LP_TEX_LAYOUT_TILED); + linear_image = llvmpipe_get_texture_image_address(lpr, face_slice, level, + LP_TEX_LAYOUT_LINEAR); + + /* get current tile layout and determine if data conversion is needed */ + cur_layout = llvmpipe_get_texture_tile_layout(lpr, face_slice, level, tx, ty); + + layout_logic(cur_layout, LP_TEX_LAYOUT_LINEAR, usage, + &new_layout, &convert); + + if (convert) { + lp_tiled_to_linear(tiled_image, linear_image, + x, y, TILE_SIZE, TILE_SIZE, lpr->base.format, + lpr->row_stride[level], + lpr->tiles_per_row[level]); + } + + if (new_layout != cur_layout) + llvmpipe_set_texture_tile_layout(lpr, face_slice, level, tx, ty, new_layout); + + return linear_image; +} + + +/** + * 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 *lpr, + unsigned face_slice, unsigned level, + enum lp_texture_usage usage, + unsigned x, unsigned y) +{ + struct llvmpipe_texture_image *tiled_img = &lpr->tiled[level]; + enum lp_texture_layout cur_layout, new_layout; + const unsigned tx = x / TILE_SIZE, ty = y / TILE_SIZE; + boolean convert; + uint8_t *tiled_image, *linear_image; + unsigned tile_offset; + + assert(x % TILE_SIZE == 0); + assert(y % TILE_SIZE == 0); + + if (!tiled_img->data) { + /* allocate memory for the tiled image now */ + alloc_image_data(lpr, level, LP_TEX_LAYOUT_TILED); + } + + /* compute address of the slice/face of the image that contains the tile */ + tiled_image = llvmpipe_get_texture_image_address(lpr, face_slice, level, + LP_TEX_LAYOUT_TILED); + linear_image = llvmpipe_get_texture_image_address(lpr, face_slice, level, + LP_TEX_LAYOUT_LINEAR); + + /* get current tile layout and see if we need to convert the data */ + cur_layout = llvmpipe_get_texture_tile_layout(lpr, face_slice, level, tx, ty); + + layout_logic(cur_layout, LP_TEX_LAYOUT_TILED, usage, &new_layout, &convert); + if (convert) { + lp_linear_to_tiled(linear_image, tiled_image, + x, y, TILE_SIZE, TILE_SIZE, lpr->base.format, + lpr->row_stride[level], + lpr->tiles_per_row[level]); + } + + if (new_layout != cur_layout) + llvmpipe_set_texture_tile_layout(lpr, face_slice, level, tx, ty, new_layout); + + /* compute, return address of the 64x64 tile */ + tile_offset = (ty * lpr->tiles_per_row[level] + tx) + * TILE_SIZE * TILE_SIZE * 4; + + return (ubyte *) tiled_image + tile_offset; +} + + +/** + * Return size of resource in bytes + */ +unsigned +llvmpipe_resource_size(const struct pipe_resource *resource) +{ + const struct llvmpipe_resource *lpr = llvmpipe_resource_const(resource); + unsigned lvl, size = 0; + + for (lvl = 0; lvl <= lpr->base.last_level; lvl++) { + if (lpr->linear[lvl].data) + size += tex_image_size(lpr, lvl, LP_TEX_LAYOUT_LINEAR); + + if (lpr->tiled[lvl].data) + size += tex_image_size(lpr, lvl, LP_TEX_LAYOUT_TILED); + } + + return size; +} + + +#ifdef DEBUG +void +llvmpipe_print_resources(void) +{ + struct llvmpipe_resource *lpr; + unsigned n = 0, total = 0; + + debug_printf("LLVMPIPE: current resources:\n"); + foreach(lpr, &resource_list) { + unsigned size = llvmpipe_resource_size(&lpr->base); + debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n", + lpr->id, (void *) lpr, + lpr->base.width0, lpr->base.height0, lpr->base.depth0, + size, lpr->base.reference.count); + total += size; + n++; + } + debug_printf("LLVMPIPE: total size of %u resources: %u\n", n, total); +} +#endif + + +void +llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen) +{ +#ifdef DEBUG + /* init linked list for tracking resources */ + { + static boolean first_call = TRUE; + if (first_call) { + memset(&resource_list, 0, sizeof(resource_list)); + make_empty_list(&resource_list); + first_call = FALSE; + } + } +#endif + + screen->resource_create = llvmpipe_resource_create; + screen->resource_destroy = llvmpipe_resource_destroy; + screen->resource_from_handle = llvmpipe_resource_from_handle; + screen->resource_get_handle = llvmpipe_resource_get_handle; + screen->user_buffer_create = llvmpipe_user_buffer_create; + + screen->get_tex_surface = llvmpipe_get_tex_surface; + screen->tex_surface_destroy = llvmpipe_tex_surface_destroy; +} + + +void +llvmpipe_init_context_resource_funcs(struct pipe_context *pipe) +{ + pipe->get_transfer = llvmpipe_get_transfer; + pipe->transfer_destroy = llvmpipe_transfer_destroy; + pipe->transfer_map = llvmpipe_transfer_map; + pipe->transfer_unmap = llvmpipe_transfer_unmap; + pipe->is_resource_referenced = llvmpipe_is_resource_referenced; + + pipe->transfer_flush_region = u_default_transfer_flush_region; + pipe->transfer_inline_write = u_default_transfer_inline_write; +} |