WebSVN – Kolibri OS – Diff – /programs/develop/libraries/pixman/pixman-implementation.c

 #include
 #endif
 #include
 #include "pixman-private.h"
-static void
-delegate_combine_32 (pixman_implementation_t * imp,
+pixman_implementation_t *
-                     pixman_op_t               op,
-                     uint32_t *                dest,
+_pixman_implementation_create (pixman_implementation_t *fallback,
-                     const uint32_t *          src,
-                     const uint32_t *          mask,
-                     int                       width)
+			       const pixman_fast_path_t *fast_paths)
 {
-    _pixman_implementation_combine_32 (imp->delegate,
-                                       op, dest, src, mask, width);
-}
+    pixman_implementation_t *imp;
-static void
-delegate_combine_64 (pixman_implementation_t * imp,
-                     pixman_op_t               op,
-                     uint64_t *                dest,
-                     const uint64_t *          src,
-                     const uint64_t *          mask,
-                     int                       width)
-{
-    _pixman_implementation_combine_64 (imp->delegate,
-                                       op, dest, src, mask, width);
-}
-static void
-delegate_combine_32_ca (pixman_implementation_t * imp,
-                        pixman_op_t               op,
-                        uint32_t *                dest,
-                        const uint32_t *          src,
+    assert (fast_paths);
-                        const uint32_t *          mask,
+    if ((imp = malloc (sizeof (pixman_implementation_t))))
+    {
+	pixman_implementation_t *d;
+	memset (imp, 0, sizeof *imp);
-                        int                       width)
+	imp->fallback = fallback;
+	imp->fast_paths = fast_paths;
 	/* Make sure the whole fallback chain has the right toplevel */
-    _pixman_implementation_combine_32_ca (imp->delegate,
+	for (d = imp; d != NULL; d = d->fallback)
-                                          op, dest, src, mask, width);
-}
-static void
-delegate_combine_64_ca (pixman_implementation_t * imp,
-                        pixman_op_t               op,
-                        uint64_t *                dest,
-                        const uint64_t *          src,
-                        const uint64_t *          mask,
-                        int                       width)
+	    d->toplevel = imp;
-{
+    }
-    _pixman_implementation_combine_64_ca (imp->delegate,
+    return imp;
-                                          op, dest, src, mask, width);
-}
-static pixman_bool_t
-delegate_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,
+#define N_CACHED_FAST_PATHS 8
-              int                       dst_x,
-              int                       dst_y,
+typedef struct
-              int                       width,
+{
-              int                       height)
+    struct
-{
+    {
+	pixman_implementation_t *	imp;
-    return _pixman_implementation_blt (
+	pixman_fast_path_t		fast_path;
-	imp->delegate, src_bits, dst_bits, src_stride, dst_stride,
+    } cache [N_CACHED_FAST_PATHS];
-	src_bpp, dst_bpp, src_x, src_y, dst_x, dst_y,
-	width, height);
-}
-static pixman_bool_t
-delegate_fill (pixman_implementation_t *imp,
-               uint32_t *               bits,
-               int                      stride,
+} cache_t;
                int                      bpp,
-               int                      x,
-               int                      y,
-               int                      width,
+PIXMAN_DEFINE_THREAD_LOCAL (cache_t, fast_path_cache);
+static void
-               int                      height,
+dummy_composite_rect (pixman_implementation_t *imp,
+		      pixman_composite_info_t *info)
+{
+}
+void
+_pixman_implementation_lookup_composite (pixman_implementation_t  *toplevel,
-               uint32_t                 xor)
+					 pixman_op_t               op,
-{
+					 pixman_format_code_t      src_format,
-    return _pixman_implementation_fill (
+					 uint32_t                  src_flags,
-	imp->delegate, bits, stride, bpp, x, y, width, height, xor);
+					 pixman_format_code_t      mask_format,
-}
+					 uint32_t                  mask_flags,
 					 pixman_format_code_t      dest_format,
-pixman_implementation_t *
+					 uint32_t                  dest_flags,
-_pixman_implementation_create (pixman_implementation_t *delegate,
-			       const pixman_fast_path_t *fast_paths)
-{
+					 pixman_implementation_t **out_imp,
-    pixman_implementation_t *imp = malloc (sizeof (pixman_implementation_t));
+					 pixman_composite_func_t  *out_func)
-    pixman_implementation_t *d;
+{
-    int i;
+    pixman_implementation_t *imp;
+    cache_t *cache;
+    int i;
-    if (!imp)
+    /* Check cache for fast paths */
-	return NULL;
+    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.
-    assert (fast_paths);
+	 */
+	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)		&&
-    /* Make sure the whole delegate chain has the right toplevel */
+		/* Formats */
-    imp->delegate = delegate;
+		((info->src_format == src_format) ||
-    for (d = imp; d != NULL; d = d->delegate)
+		 (info->src_format == PIXMAN_any))			&&
-	d->toplevel = imp;
-    /* Fill out function pointers with ones that just delegate
-     */
+		((info->mask_format == mask_format) ||
+		 (info->mask_format == PIXMAN_any))			&&
+		((info->dest_format == dest_format) ||
+		 (info->dest_format == PIXMAN_any))			&&
-    imp->blt = delegate_blt;
+		/* Flags */
-    imp->fill = delegate_fill;
+		(info->src_flags & src_flags) == info->src_flags	&&
+		(info->mask_flags & mask_flags) == info->mask_flags	&&
-    for (i = 0; i < PIXMAN_N_OPERATORS; ++i)
-    {
-	imp->combine_32[i] = delegate_combine_32;
-	imp->combine_64[i] = delegate_combine_64;
-	imp->combine_32_ca[i] = delegate_combine_32_ca;
-	imp->combine_64_ca[i] = delegate_combine_64_ca;
-    }
+		(info->dest_flags & dest_flags) == info->dest_flags)
     imp->fast_paths = fast_paths;
-    return imp;
+		*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
-void
+		 */
-_pixman_implementation_combine_32 (pixman_implementation_t * imp,
+		i = N_CACHED_FAST_PATHS - 1;
+		goto update_cache;
-                                   pixman_op_t               op,
+	    }
+	    ++info;
+	}
+    }
                                    uint32_t *                dest,
+    /* 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");
-                                   const uint32_t *          src,
+    *out_imp = NULL;
+    *out_func = dummy_composite_rect;
+    return;
+update_cache:
-                                   const uint32_t *          mask,
+    if (i)
-                                   int                       width)
+    {
-{
+	while (i--)
-    (*imp->combine_32[op]) (imp, op, dest, src, mask, width);
+	    cache->cache[i + 1] = cache->cache[i];
-}
+	cache->cache[0].imp = *out_imp;
-void
+	cache->cache[0].fast_path.op = op;
-_pixman_implementation_combine_64 (pixman_implementation_t * imp,
+	cache->cache[0].fast_path.src_format = src_format;
-                                   pixman_op_t               op,
+	cache->cache[0].fast_path.src_flags = src_flags;
-                                   uint64_t *                dest,
-                                   const uint64_t *          src,
+	cache->cache[0].fast_path.mask_format = mask_format;
-                                   const uint64_t *          mask,
+	cache->cache[0].fast_path.mask_flags = mask_flags;
-                                   int                       width)
+	cache->cache[0].fast_path.dest_format = dest_format;
 	cache->cache[0].fast_path.dest_flags = dest_flags;
-    (*imp->combine_64[op]) (imp, op, dest, src, mask, width);
-}
+	cache->cache[0].fast_path.func = *out_func;
+    }
+}
-void
-_pixman_implementation_combine_32_ca (pixman_implementation_t * imp,
+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_op_t               op,
+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 */
-                                      uint32_t *                dest,
+	    f = imp->combine_32[op];
-                                      const uint32_t *          src,
+	    break;
                                       const uint32_t *          mask,
-                                      int                       width)
+	case 3: /* narrow, component_alpha */
                             int                       dst_stride,
                             int                       src_bpp,
                             int                       dst_bpp,
                             int                       src_x,
                             int                       src_y,
-                            int                       dst_x,
+                            int                       dest_x,
-                            int                       dst_y,
+                            int                       dest_y,
                             int                       width,
                             int                       height)
+{
+    while (imp)
+    {
+	if (imp->blt &&
-    return (*imp->blt) (imp, src_bits, dst_bits, src_stride, dst_stride,
+	    (*imp->blt) (imp, src_bits, dst_bits, src_stride, dst_stride,
-			src_bpp, dst_bpp, src_x, src_y, dst_x, dst_y,
+			 src_bpp, dst_bpp, src_x, src_y, dest_x, dest_y,
-			width, height);
+			 width, height))
+	{
+	    return TRUE;
+	}
+	imp = imp->fallback;
+    }
+    return FALSE;
+}
 pixman_bool_t
 _pixman_implementation_fill (pixman_implementation_t *imp,
                              int                      bpp,
                              int                      x,
                              int                      y,
                              int                      width,
                              int                      height,
-                             uint32_t                 xor)
+                             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;
+}
+pixman_bool_t
+_pixman_implementation_src_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)
+{
+    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;
+    while (imp)
+    {
+	if (imp->src_iter_init && (*imp->src_iter_init) (imp, iter))
+	    return TRUE;
+	imp = imp->fallback;
+    }
+    return FALSE;
+}
+pixman_bool_t
+_pixman_implementation_dest_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)
+{
+    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;
+    while (imp)
+    {
+	if (imp->dest_iter_init && (*imp->dest_iter_init) (imp, iter))
+	    return TRUE;
+	imp = imp->fallback;
+    }
+    return FALSE;
+}
+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);
-    return (*imp->fill) (imp, bits, stride, bpp, x, y, width, height, xor);
+	    if (strlen (name) == len && strncmp (name, env, len) == 0)
+	    {
+		printf ("pixman: Disabled %s implementation\n", name);
+		return TRUE;
+	    }
+	    env += len;
+	}
+	while (*env++);
+    }
+    return FALSE;
+}
+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_implementation_create_noop (imp);
+    return imp;

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(root)/programs/develop/libraries/pixman/pixman-implementation.c – Rev 1891 → 3931