static void
general_iter_init (pixman_iter_t *iter, const pixman_iter_info_t *info)
{
pixman_image_t *image = iter->image;
switch (image->type)
{
case BITS:
if ((iter->iter_flags & ITER_SRC) == ITER_SRC)
_pixman_bits_image_src_iter_init (image, iter);
else
_pixman_bits_image_dest_iter_init (image, iter);
break;
case LINEAR:
_pixman_linear_gradient_iter_init (image, iter);
break;
case RADIAL:
_pixman_radial_gradient_iter_init (image, iter);
break;
case CONICAL:
_pixman_conical_gradient_iter_init (image, iter);
break;
case SOLID:
_pixman_log_error (FUNC, "Solid image not handled by noop");
break;
default:
_pixman_log_error (FUNC, "Pixman bug: unknown image type\n");
break;
}
}
static pixman_bool_t
general_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
{
pixman_image_t *image = iter->image;
if (image->type == LINEAR)
_pixman_linear_gradient_iter_init (image, iter);
else if (image->type == RADIAL)
_pixman_radial_gradient_iter_init (image, iter);
else if (image->type == CONICAL)
_pixman_conical_gradient_iter_init (image, iter);
else if (image->type == BITS)
_pixman_bits_image_src_iter_init (image, iter);
else if (image->type == SOLID)
_pixman_log_error (FUNC, "Solid image not handled by noop");
else
_pixman_log_error (FUNC, "Pixman bug: unknown image type\n");
return TRUE;
}
static void
general_dest_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
{
if (iter->image->type == BITS)
{
_pixman_bits_image_dest_iter_init (iter->image, iter);
}
else
{
_pixman_log_error (FUNC, "Trying to write to a non-writable image");
}
}
static void
ssse3_bilinear_cover_iter_init (pixman_iter_t *iter, const pixman_iter_info_t *iter_info)
{
int width = iter->width;
bilinear_info_t *info;
pixman_vector_t v;
/* Reference point is the center of the pixel */
v.vector[0] = pixman_int_to_fixed (iter->x) + pixman_fixed_1 / 2;
v.vector[1] = pixman_int_to_fixed (iter->y) + pixman_fixed_1 / 2;
v.vector[2] = pixman_fixed_1;
if (!pixman_transform_point_3d (iter->image->common.transform, &v))
goto fail;
info = malloc (sizeof (*info) + (2 * width - 1) * sizeof (uint64_t) + 64);
if (!info)
goto fail;
info->x = v.vector[0] - pixman_fixed_1 / 2;
info->y = v.vector[1] - pixman_fixed_1 / 2;
#define ALIGN(addr) \
((void *)((((uintptr_t)(addr)) + 15) & (~15)))
/* It is safe to set the y coordinates to -1 initially
* because COVER_CLIP_BILINEAR ensures that we will only
* be asked to fetch lines in the [0, height) interval
*/
info->lines[0].y = -1;
info->lines[0].buffer = ALIGN (&(info->data[0]));
info->lines[1].y = -1;
info->lines[1].buffer = ALIGN (info->lines[0].buffer + width);
iter->get_scanline = ssse3_fetch_bilinear_cover;
iter->fini = ssse3_bilinear_cover_iter_fini;
iter->data = info;
return;
fail:
/* Something went wrong, either a bad matrix or OOM; in such cases,
* we don't guarantee any particular rendering.
*/
_pixman_log_error (
FUNC, "Allocation failure or bad matrix, skipping rendering\n");
iter->get_scanline = _pixman_iter_get_scanline_noop;
iter->fini = NULL;
}
static void
general_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
{
pixman_image_t *image = iter->image;
if (image->type == SOLID)
_pixman_solid_fill_iter_init (image, iter);
else if (image->type == LINEAR)
_pixman_linear_gradient_iter_init (image, iter);
else if (image->type == RADIAL)
_pixman_radial_gradient_iter_init (image, iter);
else if (image->type == CONICAL)
_pixman_conical_gradient_iter_init (image, iter);
else if (image->type == BITS)
_pixman_bits_image_src_iter_init (image, iter);
else
_pixman_log_error (FUNC, "Pixman bug: unknown image type\n");
}
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;
}
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 known composite function\n");
*out_imp = NULL;
*out_func = dummy_composite_rect;
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;
}
}
