diff options
Diffstat (limited to 'libs/pixman-0.40.0/pixman/pixman-implementation.c')
| -rw-r--r-- | libs/pixman-0.40.0/pixman/pixman-implementation.c | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/libs/pixman-0.40.0/pixman/pixman-implementation.c b/libs/pixman-0.40.0/pixman/pixman-implementation.c deleted file mode 100644 index 2c7de4c..0000000 --- a/libs/pixman-0.40.0/pixman/pixman-implementation.c +++ /dev/null @@ -1,417 +0,0 @@ -/* - * Copyright © 2009 Red Hat, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Red Hat not be used in advertising or - * publicity pertaining to distribution of the software without specific, - * written prior permission. Red Hat makes no representations about the - * suitability of this software for any purpose. It is provided "as is" - * without express or implied warranty. - * - * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS - * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <stdlib.h> -#include "pixman-private.h" - -pixman_implementation_t * -_pixman_implementation_create (pixman_implementation_t *fallback, - const pixman_fast_path_t *fast_paths) -{ - pixman_implementation_t *imp; - - assert (fast_paths); - - if ((imp = malloc (sizeof (pixman_implementation_t)))) - { - pixman_implementation_t *d; - - memset (imp, 0, sizeof *imp); - - imp->fallback = fallback; - imp->fast_paths = fast_paths; - - /* Make sure the whole fallback chain has the right toplevel */ - for (d = imp; d != NULL; d = d->fallback) - d->toplevel = imp; - } - - return imp; -} - -#define N_CACHED_FAST_PATHS 8 - -typedef struct -{ - struct - { - pixman_implementation_t * imp; - pixman_fast_path_t fast_path; - } cache [N_CACHED_FAST_PATHS]; -} cache_t; - -PIXMAN_DEFINE_THREAD_LOCAL (cache_t, fast_path_cache); - -static void -dummy_composite_rect (pixman_implementation_t *imp, - pixman_composite_info_t *info) -{ -} - -void -_pixman_implementation_lookup_composite (pixman_implementation_t *toplevel, - pixman_op_t op, - pixman_format_code_t src_format, - uint32_t src_flags, - pixman_format_code_t mask_format, - uint32_t mask_flags, - pixman_format_code_t dest_format, - uint32_t dest_flags, - pixman_implementation_t **out_imp, - pixman_composite_func_t *out_func) -{ - pixman_implementation_t *imp; - cache_t *cache; - int i; - - /* Check cache for fast paths */ - cache = PIXMAN_GET_THREAD_LOCAL (fast_path_cache); - - for (i = 0; i < N_CACHED_FAST_PATHS; ++i) - { - const pixman_fast_path_t *info = &(cache->cache[i].fast_path); - - /* Note that we check for equality here, not whether - * the cached fast path matches. This is to prevent - * us from selecting an overly general fast path - * when a more specific one would work. - */ - if (info->op == op && - info->src_format == src_format && - info->mask_format == mask_format && - info->dest_format == dest_format && - info->src_flags == src_flags && - info->mask_flags == mask_flags && - info->dest_flags == dest_flags && - info->func) - { - *out_imp = cache->cache[i].imp; - *out_func = cache->cache[i].fast_path.func; - - goto update_cache; - } - } - - for (imp = toplevel; imp != NULL; imp = imp->fallback) - { - const pixman_fast_path_t *info = imp->fast_paths; - - while (info->op != PIXMAN_OP_NONE) - { - if ((info->op == op || info->op == PIXMAN_OP_any) && - /* Formats */ - ((info->src_format == src_format) || - (info->src_format == PIXMAN_any)) && - ((info->mask_format == mask_format) || - (info->mask_format == PIXMAN_any)) && - ((info->dest_format == dest_format) || - (info->dest_format == PIXMAN_any)) && - /* Flags */ - (info->src_flags & src_flags) == info->src_flags && - (info->mask_flags & mask_flags) == info->mask_flags && - (info->dest_flags & dest_flags) == info->dest_flags) - { - *out_imp = imp; - *out_func = info->func; - - /* Set i to the last spot in the cache so that the - * move-to-front code below will work - */ - i = N_CACHED_FAST_PATHS - 1; - - goto update_cache; - } - - ++info; - } - } - - /* We should never reach this point */ - _pixman_log_error ( - FUNC, - "No composite function found\n" - "\n" - "The most likely cause of this is that this system has issues with\n" - "thread local storage\n"); - - *out_imp = NULL; - *out_func = dummy_composite_rect; - return; - -update_cache: - if (i) - { - while (i--) - cache->cache[i + 1] = cache->cache[i]; - - cache->cache[0].imp = *out_imp; - cache->cache[0].fast_path.op = op; - cache->cache[0].fast_path.src_format = src_format; - cache->cache[0].fast_path.src_flags = src_flags; - cache->cache[0].fast_path.mask_format = mask_format; - cache->cache[0].fast_path.mask_flags = mask_flags; - cache->cache[0].fast_path.dest_format = dest_format; - cache->cache[0].fast_path.dest_flags = dest_flags; - cache->cache[0].fast_path.func = *out_func; - } -} - -static void -dummy_combine (pixman_implementation_t *imp, - pixman_op_t op, - uint32_t * pd, - const uint32_t * ps, - const uint32_t * pm, - int w) -{ -} - -pixman_combine_32_func_t -_pixman_implementation_lookup_combiner (pixman_implementation_t *imp, - pixman_op_t op, - pixman_bool_t component_alpha, - pixman_bool_t narrow) -{ - while (imp) - { - pixman_combine_32_func_t f = NULL; - - switch ((narrow << 1) | component_alpha) - { - case 0: /* not narrow, not component alpha */ - f = (pixman_combine_32_func_t)imp->combine_float[op]; - break; - - case 1: /* not narrow, component_alpha */ - f = (pixman_combine_32_func_t)imp->combine_float_ca[op]; - break; - - case 2: /* narrow, not component alpha */ - f = imp->combine_32[op]; - break; - - case 3: /* narrow, component_alpha */ - f = imp->combine_32_ca[op]; - break; - } - - if (f) - return f; - - imp = imp->fallback; - } - - /* We should never reach this point */ - _pixman_log_error (FUNC, "No known combine function\n"); - return dummy_combine; -} - -pixman_bool_t -_pixman_implementation_blt (pixman_implementation_t * imp, - uint32_t * src_bits, - uint32_t * dst_bits, - int src_stride, - int dst_stride, - int src_bpp, - int dst_bpp, - int src_x, - int src_y, - int dest_x, - int dest_y, - int width, - int height) -{ - while (imp) - { - if (imp->blt && - (*imp->blt) (imp, src_bits, dst_bits, src_stride, dst_stride, - src_bpp, dst_bpp, src_x, src_y, dest_x, dest_y, - width, height)) - { - return TRUE; - } - - imp = imp->fallback; - } - - return FALSE; -} - -pixman_bool_t -_pixman_implementation_fill (pixman_implementation_t *imp, - uint32_t * bits, - int stride, - int bpp, - int x, - int y, - int width, - int height, - uint32_t filler) -{ - while (imp) - { - if (imp->fill && - ((*imp->fill) (imp, bits, stride, bpp, x, y, width, height, filler))) - { - return TRUE; - } - - imp = imp->fallback; - } - - return FALSE; -} - -static uint32_t * -get_scanline_null (pixman_iter_t *iter, const uint32_t *mask) -{ - return NULL; -} - -void -_pixman_implementation_iter_init (pixman_implementation_t *imp, - pixman_iter_t *iter, - pixman_image_t *image, - int x, - int y, - int width, - int height, - uint8_t *buffer, - iter_flags_t iter_flags, - uint32_t image_flags) -{ - pixman_format_code_t format; - - iter->image = image; - iter->buffer = (uint32_t *)buffer; - iter->x = x; - iter->y = y; - iter->width = width; - iter->height = height; - iter->iter_flags = iter_flags; - iter->image_flags = image_flags; - iter->fini = NULL; - - if (!iter->image) - { - iter->get_scanline = get_scanline_null; - return; - } - - format = iter->image->common.extended_format_code; - - while (imp) - { - if (imp->iter_info) - { - const pixman_iter_info_t *info; - - for (info = imp->iter_info; info->format != PIXMAN_null; ++info) - { - if ((info->format == PIXMAN_any || info->format == format) && - (info->image_flags & image_flags) == info->image_flags && - (info->iter_flags & iter_flags) == info->iter_flags) - { - iter->get_scanline = info->get_scanline; - iter->write_back = info->write_back; - - if (info->initializer) - info->initializer (iter, info); - return; - } - } - } - - imp = imp->fallback; - } -} - -pixman_bool_t -_pixman_disabled (const char *name) -{ - const char *env; - - if ((env = getenv ("PIXMAN_DISABLE"))) - { - do - { - const char *end; - int len; - - if ((end = strchr (env, ' '))) - len = end - env; - else - len = strlen (env); - - if (strlen (name) == len && strncmp (name, env, len) == 0) - { - printf ("pixman: Disabled %s implementation\n", name); - return TRUE; - } - - env += len; - } - while (*env++); - } - - return FALSE; -} - -static const pixman_fast_path_t empty_fast_path[] = -{ - { PIXMAN_OP_NONE } -}; - -pixman_implementation_t * -_pixman_choose_implementation (void) -{ - pixman_implementation_t *imp; - - imp = _pixman_implementation_create_general(); - - if (!_pixman_disabled ("fast")) - imp = _pixman_implementation_create_fast_path (imp); - - imp = _pixman_x86_get_implementations (imp); - imp = _pixman_arm_get_implementations (imp); - imp = _pixman_ppc_get_implementations (imp); - imp = _pixman_mips_get_implementations (imp); - - imp = _pixman_implementation_create_noop (imp); - - if (_pixman_disabled ("wholeops")) - { - pixman_implementation_t *cur; - - /* Disable all whole-operation paths except the general one, - * so that optimized iterators are used as much as possible. - */ - for (cur = imp; cur->fallback; cur = cur->fallback) - cur->fast_paths = empty_fast_path; - } - - return imp; -} |