#include <stdlib.h>
+static pixman_implementation_t *global_implementation;
+
+#ifdef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
+static void __attribute__((constructor))
+pixman_constructor (void)
+{
+ global_implementation = _pixman_choose_implementation ();
+}
+#endif
+
static force_inline pixman_implementation_t *
get_implementation (void)
{
- static pixman_implementation_t *global_implementation;
-
+#ifndef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
if (!global_implementation)
global_implementation = _pixman_choose_implementation ();
-
+#endif
return global_implementation;
}
pixman_compute_composite_region32 (pixman_region32_t * region,
pixman_image_t * src_image,
pixman_image_t * mask_image,
- pixman_image_t * dst_image,
+ pixman_image_t * dest_image,
int32_t src_x,
int32_t src_y,
int32_t mask_x,
region->extents.x1 = MAX (region->extents.x1, 0);
region->extents.y1 = MAX (region->extents.y1, 0);
- region->extents.x2 = MIN (region->extents.x2, dst_image->bits.width);
- region->extents.y2 = MIN (region->extents.y2, dst_image->bits.height);
+ region->extents.x2 = MIN (region->extents.x2, dest_image->bits.width);
+ region->extents.y2 = MIN (region->extents.y2, dest_image->bits.height);
region->data = 0;
return FALSE;
}
- if (dst_image->common.have_clip_region)
+ if (dest_image->common.have_clip_region)
{
- if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
+ if (!clip_general_image (region, &dest_image->common.clip_region, 0, 0))
return FALSE;
}
- if (dst_image->common.alpha_map)
+ if (dest_image->common.alpha_map)
{
if (!pixman_region32_intersect_rect (region, region,
- dst_image->common.alpha_origin_x,
- dst_image->common.alpha_origin_y,
- dst_image->common.alpha_map->width,
- dst_image->common.alpha_map->height))
+ dest_image->common.alpha_origin_x,
+ dest_image->common.alpha_origin_y,
+ dest_image->common.alpha_map->width,
+ dest_image->common.alpha_map->height))
{
return FALSE;
}
if (!pixman_region32_not_empty (region))
return FALSE;
- if (dst_image->common.alpha_map->common.have_clip_region)
+ if (dest_image->common.alpha_map->common.have_clip_region)
{
- if (!clip_general_image (region, &dst_image->common.alpha_map->common.clip_region,
- -dst_image->common.alpha_origin_x,
- -dst_image->common.alpha_origin_y))
+ if (!clip_general_image (region, &dest_image->common.alpha_map->common.clip_region,
+ -dest_image->common.alpha_origin_x,
+ -dest_image->common.alpha_origin_y))
{
return FALSE;
}
return TRUE;
}
-#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 force_inline pixman_bool_t
-lookup_composite_function (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 = get_implementation (); imp != NULL; imp = imp->delegate)
- {
- 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;
- }
- }
- return FALSE;
-
-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;
- }
-
- return TRUE;
-}
+ pixman_fixed_48_16_t x1;
+ pixman_fixed_48_16_t y1;
+ pixman_fixed_48_16_t x2;
+ pixman_fixed_48_16_t y2;
+} box_48_16_t;
static pixman_bool_t
-compute_sample_extents (pixman_transform_t *transform,
- pixman_box32_t *extents, int x, int y,
- pixman_fixed_t x_off, pixman_fixed_t y_off,
- pixman_fixed_t width, pixman_fixed_t height)
+compute_transformed_extents (pixman_transform_t *transform,
+ const pixman_box32_t *extents,
+ box_48_16_t *transformed)
{
- pixman_fixed_t x1, y1, x2, y2;
pixman_fixed_48_16_t tx1, ty1, tx2, ty2;
+ pixman_fixed_t x1, y1, x2, y2;
+ int i;
- /* We have checked earlier that (extents->x1 - x) etc. fit in a pixman_fixed_t */
- x1 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->x1 - x) + pixman_fixed_1 / 2;
- y1 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->y1 - y) + pixman_fixed_1 / 2;
- x2 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->x2 - x) - pixman_fixed_1 / 2;
- y2 = (pixman_fixed_48_16_t)pixman_int_to_fixed (extents->y2 - y) - pixman_fixed_1 / 2;
+ x1 = pixman_int_to_fixed (extents->x1) + pixman_fixed_1 / 2;
+ y1 = pixman_int_to_fixed (extents->y1) + pixman_fixed_1 / 2;
+ x2 = pixman_int_to_fixed (extents->x2) - pixman_fixed_1 / 2;
+ y2 = pixman_int_to_fixed (extents->y2) - pixman_fixed_1 / 2;
if (!transform)
{
- tx1 = (pixman_fixed_48_16_t)x1;
- ty1 = (pixman_fixed_48_16_t)y1;
- tx2 = (pixman_fixed_48_16_t)x2;
- ty2 = (pixman_fixed_48_16_t)y2;
+ transformed->x1 = x1;
+ transformed->y1 = y1;
+ transformed->x2 = x2;
+ transformed->y2 = y2;
+
+ return TRUE;
}
- else
- {
- int i;
- /* Silence GCC */
- tx1 = ty1 = tx2 = ty2 = 0;
-
- for (i = 0; i < 4; ++i)
- {
- pixman_fixed_48_16_t tx, ty;
- pixman_vector_t v;
+ tx1 = ty1 = INT64_MAX;
+ tx2 = ty2 = INT64_MIN;
- v.vector[0] = (i & 0x01)? x1 : x2;
- v.vector[1] = (i & 0x02)? y1 : y2;
- v.vector[2] = pixman_fixed_1;
+ for (i = 0; i < 4; ++i)
+ {
+ pixman_fixed_48_16_t tx, ty;
+ pixman_vector_t v;
- if (!pixman_transform_point (transform, &v))
- return FALSE;
+ v.vector[0] = (i & 0x01)? x1 : x2;
+ v.vector[1] = (i & 0x02)? y1 : y2;
+ v.vector[2] = pixman_fixed_1;
- tx = (pixman_fixed_48_16_t)v.vector[0];
- ty = (pixman_fixed_48_16_t)v.vector[1];
+ if (!pixman_transform_point (transform, &v))
+ return FALSE;
- if (i == 0)
- {
- tx1 = tx;
- ty1 = ty;
- tx2 = tx;
- ty2 = ty;
- }
- else
- {
- if (tx < tx1)
- tx1 = tx;
- if (ty < ty1)
- ty1 = ty;
- if (tx > tx2)
- tx2 = tx;
- if (ty > ty2)
- ty2 = ty;
- }
- }
+ tx = (pixman_fixed_48_16_t)v.vector[0];
+ ty = (pixman_fixed_48_16_t)v.vector[1];
+
+ if (tx < tx1)
+ tx1 = tx;
+ if (ty < ty1)
+ ty1 = ty;
+ if (tx > tx2)
+ tx2 = tx;
+ if (ty > ty2)
+ ty2 = ty;
}
- /* Expand the source area by a tiny bit so account of different rounding that
- * may happen during sampling. Note that (8 * pixman_fixed_e) is very far from
- * 0.5 so this won't cause the area computed to be overly pessimistic.
- */
- tx1 += x_off - 8 * pixman_fixed_e;
- ty1 += y_off - 8 * pixman_fixed_e;
- tx2 += x_off + width + 8 * pixman_fixed_e;
- ty2 += y_off + height + 8 * pixman_fixed_e;
-
- if (tx1 < pixman_min_fixed_48_16 || tx1 > pixman_max_fixed_48_16 ||
- ty1 < pixman_min_fixed_48_16 || ty1 > pixman_max_fixed_48_16 ||
- tx2 < pixman_min_fixed_48_16 || tx2 > pixman_max_fixed_48_16 ||
- ty2 < pixman_min_fixed_48_16 || ty2 > pixman_max_fixed_48_16)
- {
- return FALSE;
- }
- else
- {
- extents->x1 = pixman_fixed_to_int (tx1);
- extents->y1 = pixman_fixed_to_int (ty1);
- extents->x2 = pixman_fixed_to_int (tx2) + 1;
- extents->y2 = pixman_fixed_to_int (ty2) + 1;
+ transformed->x1 = tx1;
+ transformed->y1 = ty1;
+ transformed->x2 = tx2;
+ transformed->y2 = ty2;
- return TRUE;
- }
+ return TRUE;
}
#define IS_16BIT(x) (((x) >= INT16_MIN) && ((x) <= INT16_MAX))
+#define ABS(f) (((f) < 0)? (-(f)) : (f))
+#define IS_16_16(f) (((f) >= pixman_min_fixed_48_16 && ((f) <= pixman_max_fixed_48_16)))
static pixman_bool_t
-analyze_extent (pixman_image_t *image, int x, int y,
- const pixman_box32_t *extents, uint32_t *flags)
+analyze_extent (pixman_image_t *image,
+ const pixman_box32_t *extents,
+ uint32_t *flags)
{
pixman_transform_t *transform;
- pixman_fixed_t *params;
pixman_fixed_t x_off, y_off;
pixman_fixed_t width, height;
- pixman_box32_t ex;
+ pixman_fixed_t *params;
+ box_48_16_t transformed;
+ pixman_box32_t exp_extents;
if (!image)
return TRUE;
* check here that the expanded-by-one source
* extents in destination space fits in 16 bits
*/
- if (!IS_16BIT (extents->x1 - x - 1) ||
- !IS_16BIT (extents->y1 - y - 1) ||
- !IS_16BIT (extents->x2 - x + 1) ||
- !IS_16BIT (extents->y2 - y + 1))
+ if (!IS_16BIT (extents->x1 - 1) ||
+ !IS_16BIT (extents->y1 - 1) ||
+ !IS_16BIT (extents->x2 + 1) ||
+ !IS_16BIT (extents->y2 + 1))
{
return FALSE;
}
if (image->bits.width >= 0x7fff || image->bits.height >= 0x7fff)
return FALSE;
-#define ID_AND_NEAREST (FAST_PATH_ID_TRANSFORM | FAST_PATH_NEAREST_FILTER)
-
- if ((image->common.flags & ID_AND_NEAREST) == ID_AND_NEAREST &&
- extents->x1 - x >= 0 &&
- extents->y1 - y >= 0 &&
- extents->x2 - x <= image->bits.width &&
- extents->y2 - y <= image->bits.height)
+ if ((image->common.flags & FAST_PATH_ID_TRANSFORM) == FAST_PATH_ID_TRANSFORM &&
+ extents->x1 >= 0 &&
+ extents->y1 >= 0 &&
+ extents->x2 <= image->bits.width &&
+ extents->y2 <= image->bits.height)
{
- *flags |= FAST_PATH_SAMPLES_COVER_CLIP;
+ *flags |= FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
return TRUE;
}
-
+
switch (image->common.filter)
{
case PIXMAN_FILTER_CONVOLUTION:
default:
return FALSE;
}
-
- /* Check whether the non-expanded, transformed extent is entirely within
- * the source image, and set the FAST_PATH_SAMPLES_COVER_CLIP if it is.
- */
- ex = *extents;
- if (compute_sample_extents (transform, &ex, x, y, x_off, y_off, width, height) &&
- ex.x1 >= 0 && ex.y1 >= 0 &&
- ex.x2 <= image->bits.width && ex.y2 <= image->bits.height)
- {
- *flags |= FAST_PATH_SAMPLES_COVER_CLIP;
- }
}
else
{
height = 0;
}
- /* Check that the extents expanded by one don't overflow. This ensures that
- * compositing functions can simply walk the source space using 16.16
- * variables without worrying about overflow.
+ if (!compute_transformed_extents (transform, extents, &transformed))
+ return FALSE;
+
+ /* Expand the source area by a tiny bit so account of different rounding that
+ * may happen during sampling. Note that (8 * pixman_fixed_e) is very far from
+ * 0.5 so this won't cause the area computed to be overly pessimistic.
+ */
+ transformed.x1 -= 8 * pixman_fixed_e;
+ transformed.y1 -= 8 * pixman_fixed_e;
+ transformed.x2 += 8 * pixman_fixed_e;
+ transformed.y2 += 8 * pixman_fixed_e;
+
+ if (image->common.type == BITS)
+ {
+ if (pixman_fixed_to_int (transformed.x1) >= 0 &&
+ pixman_fixed_to_int (transformed.y1) >= 0 &&
+ pixman_fixed_to_int (transformed.x2) < image->bits.width &&
+ pixman_fixed_to_int (transformed.y2) < image->bits.height)
+ {
+ *flags |= FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
+ }
+
+ if (pixman_fixed_to_int (transformed.x1 - pixman_fixed_1 / 2) >= 0 &&
+ pixman_fixed_to_int (transformed.y1 - pixman_fixed_1 / 2) >= 0 &&
+ pixman_fixed_to_int (transformed.x2 + pixman_fixed_1 / 2) < image->bits.width &&
+ pixman_fixed_to_int (transformed.y2 + pixman_fixed_1 / 2) < image->bits.height)
+ {
+ *flags |= FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR;
+ }
+ }
+
+ /* Check we don't overflow when the destination extents are expanded by one.
+ * This ensures that compositing functions can simply walk the source space
+ * using 16.16 variables without worrying about overflow.
*/
- ex.x1 = extents->x1 - 1;
- ex.y1 = extents->y1 - 1;
- ex.x2 = extents->x2 + 1;
- ex.y2 = extents->y2 + 1;
+ exp_extents = *extents;
+ exp_extents.x1 -= 1;
+ exp_extents.y1 -= 1;
+ exp_extents.x2 += 1;
+ exp_extents.y2 += 1;
- if (!compute_sample_extents (transform, &ex, x, y, x_off, y_off, width, height))
+ if (!compute_transformed_extents (transform, &exp_extents, &transformed))
+ return FALSE;
+
+ if (!IS_16_16 (transformed.x1 + x_off - 8 * pixman_fixed_e) ||
+ !IS_16_16 (transformed.y1 + y_off - 8 * pixman_fixed_e) ||
+ !IS_16_16 (transformed.x2 + x_off + 8 * pixman_fixed_e + width) ||
+ !IS_16_16 (transformed.y2 + y_off + 8 * pixman_fixed_e + height))
+ {
return FALSE;
+ }
return TRUE;
}
pixman_format_code_t src_format, mask_format, dest_format;
uint32_t src_flags, mask_flags, dest_flags;
pixman_region32_t region;
- pixman_box32_t *extents;
+ pixman_box32_t extents;
pixman_implementation_t *imp;
pixman_composite_func_t func;
goto out;
}
- extents = pixman_region32_extents (®ion);
+ extents = *pixman_region32_extents (®ion);
+
+ extents.x1 -= dest_x - src_x;
+ extents.y1 -= dest_y - src_y;
+ extents.x2 -= dest_x - src_x;
+ extents.y2 -= dest_y - src_y;
- if (!analyze_extent (src, dest_x - src_x, dest_y - src_y, extents, &src_flags))
+ if (!analyze_extent (src, &extents, &src_flags))
goto out;
- if (!analyze_extent (mask, dest_x - mask_x, dest_y - mask_y, extents, &mask_flags))
+ extents.x1 -= src_x - mask_x;
+ extents.y1 -= src_y - mask_y;
+ extents.x2 -= src_x - mask_x;
+ extents.y2 -= src_y - mask_y;
+
+ if (!analyze_extent (mask, &extents, &mask_flags))
goto out;
- /* If the clip is within the source samples, and the samples are opaque,
- * then the source is effectively opaque.
+ /* If the clip is within the source samples, and the samples are
+ * opaque, then the source is effectively opaque.
*/
-#define BOTH (FAST_PATH_SAMPLES_OPAQUE | FAST_PATH_SAMPLES_COVER_CLIP)
-
- if ((src_flags & BOTH) == BOTH)
+#define NEAREST_OPAQUE (FAST_PATH_SAMPLES_OPAQUE | \
+ FAST_PATH_NEAREST_FILTER | \
+ FAST_PATH_SAMPLES_COVER_CLIP_NEAREST)
+#define BILINEAR_OPAQUE (FAST_PATH_SAMPLES_OPAQUE | \
+ FAST_PATH_BILINEAR_FILTER | \
+ FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR)
+
+ if ((src_flags & NEAREST_OPAQUE) == NEAREST_OPAQUE ||
+ (src_flags & BILINEAR_OPAQUE) == BILINEAR_OPAQUE)
+ {
src_flags |= FAST_PATH_IS_OPAQUE;
-
- if ((mask_flags & BOTH) == BOTH)
+ }
+
+ if ((mask_flags & NEAREST_OPAQUE) == NEAREST_OPAQUE ||
+ (mask_flags & BILINEAR_OPAQUE) == BILINEAR_OPAQUE)
+ {
mask_flags |= FAST_PATH_IS_OPAQUE;
-
+ }
+
/*
* Check if we can replace our operator by a simpler one
* if the src or dest are opaque. The output operator should be
* mathematically equivalent to the source.
*/
op = optimize_operator (op, src_flags, mask_flags, dest_flags);
- if (op == PIXMAN_OP_DST)
- goto out;
- if (lookup_composite_function (op,
- src_format, src_flags,
- mask_format, mask_flags,
- dest_format, dest_flags,
- &imp, &func))
+ if (_pixman_lookup_composite_function (
+ get_implementation (), op,
+ src_format, src_flags, mask_format, mask_flags, dest_format, dest_flags,
+ &imp, &func))
{
+ pixman_composite_info_t info;
const pixman_box32_t *pbox;
int n;
+ info.op = op;
+ info.src_image = src;
+ info.mask_image = mask;
+ info.dest_image = dest;
+ info.src_flags = src_flags;
+ info.mask_flags = mask_flags;
+ info.dest_flags = dest_flags;
+
pbox = pixman_region32_rectangles (®ion, &n);
-
+
while (n--)
{
- func (imp, op,
- src, mask, dest,
- pbox->x1 + src_x - dest_x,
- pbox->y1 + src_y - dest_y,
- pbox->x1 + mask_x - dest_x,
- pbox->y1 + mask_y - dest_y,
- pbox->x1,
- pbox->y1,
- pbox->x2 - pbox->x1,
- pbox->y2 - pbox->y1);
-
+ info.src_x = pbox->x1 + src_x - dest_x;
+ info.src_y = pbox->y1 + src_y - dest_y;
+ info.mask_x = pbox->x1 + mask_x - dest_x;
+ info.mask_y = pbox->y1 + mask_y - dest_y;
+ info.dest_x = pbox->x1;
+ info.dest_y = pbox->y1;
+ info.width = pbox->x2 - pbox->x1;
+ info.height = pbox->y2 - pbox->y1;
+
+ func (imp, &info);
+
pbox++;
}
}
int dst_bpp,
int src_x,
int src_y,
- int dst_x,
- int dst_y,
+ int dest_x,
+ int dest_y,
int width,
int height)
{
src_bits, dst_bits, src_stride, dst_stride,
src_bpp, dst_bpp,
src_x, src_y,
- dst_x, dst_y,
+ dest_x, dest_y,
width, height);
}
format == PIXMAN_x8b8g8r8 ||
format == PIXMAN_b8g8r8a8 ||
format == PIXMAN_b8g8r8x8 ||
+ format == PIXMAN_r8g8b8a8 ||
+ format == PIXMAN_r8g8b8x8 ||
format == PIXMAN_r5g6b5 ||
format == PIXMAN_b5g6r5 ||
- format == PIXMAN_a8))
+ format == PIXMAN_a8 ||
+ format == PIXMAN_a1))
{
return FALSE;
}
((c & 0x0000ff00) << 8) |
((c & 0x000000ff) << 24);
}
+ if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_RGBA)
+ c = ((c & 0xff000000) >> 24) | (c << 8);
- if (format == PIXMAN_a8)
+ if (format == PIXMAN_a1)
+ c = c >> 31;
+ else if (format == PIXMAN_a8)
c = c >> 24;
else if (format == PIXMAN_r5g6b5 ||
format == PIXMAN_b5g6r5)
case PIXMAN_x8b8g8r8:
case PIXMAN_b8g8r8a8:
case PIXMAN_b8g8r8x8:
+ case PIXMAN_r8g8b8a8:
+ case PIXMAN_r8g8b8x8:
case PIXMAN_r8g8b8:
case PIXMAN_b8g8r8:
case PIXMAN_r5g6b5:
pixman_compute_composite_region (pixman_region16_t * region,
pixman_image_t * src_image,
pixman_image_t * mask_image,
- pixman_image_t * dst_image,
+ pixman_image_t * dest_image,
int16_t src_x,
int16_t src_y,
int16_t mask_x,
pixman_region32_init (&r32);
retval = pixman_compute_composite_region32 (
- &r32, src_image, mask_image, dst_image,
+ &r32, src_image, mask_image, dest_image,
src_x, src_y, mask_x, mask_y, dest_x, dest_y,
width, height);
projects / profile / ivi / pixman.git / blobdiff