pixman_addition_overflows_int (unsigned int a, unsigned int b);
/* Compositing utilities */
-pixman_bool_t
-_pixman_run_fast_path (const pixman_fast_path_t *paths,
- pixman_implementation_t * imp,
- pixman_op_t op,
- pixman_image_t * src,
- pixman_image_t * mask,
- pixman_image_t * dest,
- int32_t src_x,
- int32_t src_y,
- int32_t mask_x,
- int32_t mask_y,
- int32_t dest_x,
- int32_t dest_y,
- int32_t width,
- int32_t height);
-
void
pixman_expand (uint64_t * dst,
const uint32_t * src,
#include "pixman-private.h"
-/*
- * Computing composite region
- */
-static inline pixman_bool_t
-clip_general_image (pixman_region32_t * region,
- pixman_region32_t * clip,
- int dx,
- int dy)
-{
- if (pixman_region32_n_rects (region) == 1 &&
- pixman_region32_n_rects (clip) == 1)
- {
- pixman_box32_t * rbox = pixman_region32_rectangles (region, NULL);
- pixman_box32_t * cbox = pixman_region32_rectangles (clip, NULL);
- int v;
-
- if (rbox->x1 < (v = cbox->x1 + dx))
- rbox->x1 = v;
- if (rbox->x2 > (v = cbox->x2 + dx))
- rbox->x2 = v;
- if (rbox->y1 < (v = cbox->y1 + dy))
- rbox->y1 = v;
- if (rbox->y2 > (v = cbox->y2 + dy))
- rbox->y2 = v;
- if (rbox->x1 >= rbox->x2 || rbox->y1 >= rbox->y2)
- {
- pixman_region32_init (region);
- return FALSE;
- }
- }
- else if (!pixman_region32_not_empty (clip))
- {
- return FALSE;
- }
- else
- {
- if (dx || dy)
- pixman_region32_translate (region, -dx, -dy);
-
- if (!pixman_region32_intersect (region, region, clip))
- return FALSE;
-
- if (dx || dy)
- pixman_region32_translate (region, dx, dy);
- }
-
- return pixman_region32_not_empty (region);
-}
-
-static inline pixman_bool_t
-clip_source_image (pixman_region32_t * region,
- pixman_image_t * image,
- int dx,
- int dy)
-{
- /* Source clips are ignored, unless they are explicitly turned on
- * and the clip in question was set by an X client. (Because if
- * the clip was not set by a client, then it is a hierarchy
- * clip and those should always be ignored for sources).
- */
- if (!image->common.clip_sources || !image->common.client_clip)
- return TRUE;
-
- return clip_general_image (region,
- &image->common.clip_region,
- dx, dy);
-}
-
-/*
- * returns FALSE if the final region is empty. Indistinguishable from
- * an allocation failure, but rendering ignores those anyways.
- */
-static pixman_bool_t
-pixman_compute_composite_region32 (pixman_region32_t * region,
- pixman_image_t * src_image,
- pixman_image_t * mask_image,
- pixman_image_t * dst_image,
- int32_t src_x,
- int32_t src_y,
- int32_t mask_x,
- int32_t mask_y,
- int32_t dest_x,
- int32_t dest_y,
- int32_t width,
- int32_t height)
-{
- region->extents.x1 = dest_x;
- region->extents.x2 = dest_x + width;
- region->extents.y1 = dest_y;
- region->extents.y2 = dest_y + height;
-
- 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->data = 0;
-
- /* Check for empty operation */
- if (region->extents.x1 >= region->extents.x2 ||
- region->extents.y1 >= region->extents.y2)
- {
- pixman_region32_init (region);
- return FALSE;
- }
-
- if (dst_image->common.have_clip_region)
- {
- if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
- {
- pixman_region32_fini (region);
- return FALSE;
- }
- }
-
- if (dst_image->common.alpha_map && dst_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))
- {
- pixman_region32_fini (region);
- return FALSE;
- }
- }
-
- /* clip against src */
- if (src_image->common.have_clip_region)
- {
- if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))
- {
- pixman_region32_fini (region);
- return FALSE;
- }
- }
- if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)
- {
- if (!clip_source_image (region, (pixman_image_t *)src_image->common.alpha_map,
- dest_x - (src_x - src_image->common.alpha_origin_x),
- dest_y - (src_y - src_image->common.alpha_origin_y)))
- {
- pixman_region32_fini (region);
- return FALSE;
- }
- }
- /* clip against mask */
- if (mask_image && mask_image->common.have_clip_region)
- {
- if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))
- {
- pixman_region32_fini (region);
- return FALSE;
- }
- if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)
- {
- if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,
- dest_x - (mask_x - mask_image->common.alpha_origin_x),
- dest_y - (mask_y - mask_image->common.alpha_origin_y)))
- {
- pixman_region32_fini (region);
- return FALSE;
- }
- }
- }
-
- return TRUE;
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_compute_composite_region (pixman_region16_t * region,
- pixman_image_t * src_image,
- pixman_image_t * mask_image,
- pixman_image_t * dst_image,
- int16_t src_x,
- int16_t src_y,
- int16_t mask_x,
- int16_t mask_y,
- int16_t dest_x,
- int16_t dest_y,
- uint16_t width,
- uint16_t height)
-{
- pixman_region32_t r32;
- pixman_bool_t retval;
-
- pixman_region32_init (&r32);
-
- retval = pixman_compute_composite_region32 (
- &r32, src_image, mask_image, dst_image,
- src_x, src_y, mask_x, mask_y, dest_x, dest_y,
- width, height);
-
- if (retval)
- {
- if (!pixman_region16_copy_from_region32 (region, &r32))
- retval = FALSE;
- }
-
- pixman_region32_fini (&r32);
- return retval;
-}
-
pixman_bool_t
pixman_multiply_overflows_int (unsigned int a,
unsigned int b)
}
}
-static void
-walk_region_internal (pixman_implementation_t *imp,
- pixman_op_t op,
- pixman_image_t * src_image,
- pixman_image_t * mask_image,
- pixman_image_t * dst_image,
- int32_t src_x,
- int32_t src_y,
- int32_t mask_x,
- int32_t mask_y,
- int32_t dest_x,
- int32_t dest_y,
- int32_t width,
- int32_t height,
- pixman_bool_t src_repeat,
- pixman_bool_t mask_repeat,
- pixman_region32_t * region,
- pixman_composite_func_t composite_rect)
-{
- int n;
- const pixman_box32_t *pbox;
- int w, h, w_this, h_this;
- int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
-
- pbox = pixman_region32_rectangles (region, &n);
- while (n--)
- {
- h = pbox->y2 - pbox->y1;
- y_src = pbox->y1 - dest_y + src_y;
- y_msk = pbox->y1 - dest_y + mask_y;
- y_dst = pbox->y1;
-
- while (h)
- {
- h_this = h;
- w = pbox->x2 - pbox->x1;
- x_src = pbox->x1 - dest_x + src_x;
- x_msk = pbox->x1 - dest_x + mask_x;
- x_dst = pbox->x1;
-
- if (mask_repeat)
- {
- y_msk = MOD (y_msk, mask_image->bits.height);
- if (h_this > mask_image->bits.height - y_msk)
- h_this = mask_image->bits.height - y_msk;
- }
-
- if (src_repeat)
- {
- y_src = MOD (y_src, src_image->bits.height);
- if (h_this > src_image->bits.height - y_src)
- h_this = src_image->bits.height - y_src;
- }
-
- while (w)
- {
- w_this = w;
-
- if (mask_repeat)
- {
- x_msk = MOD (x_msk, mask_image->bits.width);
- if (w_this > mask_image->bits.width - x_msk)
- w_this = mask_image->bits.width - x_msk;
- }
-
- if (src_repeat)
- {
- x_src = MOD (x_src, src_image->bits.width);
- if (w_this > src_image->bits.width - x_src)
- w_this = src_image->bits.width - x_src;
- }
-
- (*composite_rect) (imp, op,
- src_image, mask_image, dst_image,
- x_src, y_src, x_msk, y_msk, x_dst, y_dst,
- w_this, h_this);
- w -= w_this;
-
- x_src += w_this;
- x_msk += w_this;
- x_dst += w_this;
- }
-
- h -= h_this;
- y_src += h_this;
- y_msk += h_this;
- y_dst += h_this;
- }
-
- pbox++;
- }
-}
-
-static void
-get_image_info (pixman_image_t *image,
- pixman_format_code_t *code,
- uint32_t *flags)
-{
- *flags = 0;
-
- if (!image)
- {
- *code = PIXMAN_null;
- }
- else
- {
- if (!image->common.transform)
- {
- *flags |= FAST_PATH_ID_TRANSFORM;
- }
- else
- {
- if (image->common.transform->matrix[0][1] == 0 &&
- image->common.transform->matrix[1][0] == 0 &&
- image->common.transform->matrix[2][0] == 0 &&
- image->common.transform->matrix[2][1] == 0 &&
- image->common.transform->matrix[2][2] == pixman_fixed_1)
- {
- *flags |= FAST_PATH_SCALE_TRANSFORM;
- }
- }
-
- if (!image->common.alpha_map)
- *flags |= FAST_PATH_NO_ALPHA_MAP;
-
- if (image->common.filter != PIXMAN_FILTER_CONVOLUTION)
- {
- *flags |= FAST_PATH_NO_CONVOLUTION_FILTER;
-
- if (image->common.filter == PIXMAN_FILTER_NEAREST)
- *flags |= FAST_PATH_NEAREST_FILTER;
- }
-
- if (image->common.repeat != PIXMAN_REPEAT_PAD)
- *flags |= FAST_PATH_NO_PAD_REPEAT;
-
- if (image->common.repeat != PIXMAN_REPEAT_REFLECT)
- *flags |= FAST_PATH_NO_REFLECT_REPEAT;
-
- *flags |= (FAST_PATH_NO_ACCESSORS | FAST_PATH_NO_WIDE_FORMAT);
- if (image->type == BITS)
- {
- if (image->bits.read_func || image->bits.write_func)
- *flags &= ~FAST_PATH_NO_ACCESSORS;
-
- if (PIXMAN_FORMAT_IS_WIDE (image->bits.format))
- *flags &= ~FAST_PATH_NO_WIDE_FORMAT;
- }
-
- if (image->common.component_alpha)
- *flags |= FAST_PATH_COMPONENT_ALPHA;
- else
- *flags |= FAST_PATH_UNIFIED_ALPHA;
-
- if (_pixman_image_is_solid (image))
- *code = PIXMAN_solid;
- else if (image->common.type == BITS)
- *code = image->bits.format;
- else
- *code = PIXMAN_unknown;
- }
-}
-
-static force_inline pixman_bool_t
-image_covers (pixman_image_t *image,
- pixman_box32_t *extents,
- int x,
- int y)
-{
- if (image->common.type == BITS &&
- image->common.repeat == PIXMAN_REPEAT_NONE)
- {
- if (x > extents->x1 || y > extents->y1 ||
- x + image->bits.width < extents->x2 ||
- y + image->bits.height < extents->y2)
- {
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-pixman_bool_t
-_pixman_run_fast_path (const pixman_fast_path_t *paths,
- pixman_implementation_t * imp,
- pixman_op_t op,
- pixman_image_t * src,
- pixman_image_t * mask,
- pixman_image_t * dest,
- int32_t src_x,
- int32_t src_y,
- int32_t mask_x,
- int32_t mask_y,
- int32_t dest_x,
- int32_t dest_y,
- int32_t width,
- int32_t height)
-{
- pixman_format_code_t src_format, mask_format, dest_format;
- uint32_t src_flags, mask_flags, dest_flags;
- pixman_composite_func_t func;
- const pixman_fast_path_t *info;
- pixman_bool_t result;
- pixman_region32_t region;
- pixman_box32_t *extents;
-
- get_image_info (src, &src_format, &src_flags);
- get_image_info (mask, &mask_format, &mask_flags);
- get_image_info (dest, &dest_format, &dest_flags);
-
- /* Check for pixbufs */
- if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&
- (src->type == BITS && src->bits.bits == mask->bits.bits) &&
- (src->common.repeat == mask->common.repeat) &&
- (src_x == mask_x && src_y == mask_y))
- {
- if (src_format == PIXMAN_x8b8g8r8)
- src_format = mask_format = PIXMAN_pixbuf;
- else if (src_format == PIXMAN_x8r8g8b8)
- src_format = mask_format = PIXMAN_rpixbuf;
- }
-
- pixman_region32_init (®ion);
-
- if (!pixman_compute_composite_region32 (
- ®ion, src, mask, dest,
- src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))
- {
- return TRUE;
- }
-
- result = FALSE;
-
- extents = pixman_region32_extents (®ion);
-
- if (image_covers (src, extents, dest_x - src_x, dest_y - src_y))
- src_flags |= FAST_PATH_COVERS_CLIP;
-
- if (mask && image_covers (mask, extents, dest_x - mask_x, dest_y - mask_y))
- mask_flags |= FAST_PATH_COVERS_CLIP;
-
- func = NULL;
- for (info = paths; info->op != PIXMAN_OP_NONE; ++info)
- {
- if ((info->op == op || info->op == PIXMAN_OP_any) &&
- /* src */
- ((info->src_format == src_format) ||
- (info->src_format == PIXMAN_any)) &&
- (info->src_flags & src_flags) == info->src_flags &&
- /* mask */
- ((info->mask_format == mask_format) ||
- (info->mask_format == PIXMAN_any)) &&
- (info->mask_flags & mask_flags) == info->mask_flags &&
- /* dest */
- ((info->dest_format == dest_format) ||
- (info->dest_format == PIXMAN_any)) &&
- (info->dest_flags & dest_flags) == info->dest_flags)
- {
- func = info->func;
- break;
- }
- }
-
- if (func)
- {
- pixman_bool_t src_repeat, mask_repeat;
-
- src_repeat =
- src->type == BITS &&
- src_flags & FAST_PATH_ID_TRANSFORM &&
- src->common.repeat == PIXMAN_REPEAT_NORMAL &&
- src_format != PIXMAN_solid;
-
- mask_repeat =
- mask &&
- mask->type == BITS &&
- mask_flags & FAST_PATH_ID_TRANSFORM &&
- mask->common.repeat == PIXMAN_REPEAT_NORMAL &&
- mask_format != PIXMAN_solid;
-
- walk_region_internal (imp, op,
- src, mask, dest,
- src_x, src_y, mask_x, mask_y,
- dest_x, dest_y,
- width, height,
- src_repeat, mask_repeat,
- ®ion,
- func);
-
- result = TRUE;
- }
-
- pixman_region32_fini (®ion);
- return result;
-}
-
#define N_TMP_BOXES (16)
pixman_bool_t
}
}
+/*
+ * Computing composite region
+ */
+static inline pixman_bool_t
+clip_general_image (pixman_region32_t * region,
+ pixman_region32_t * clip,
+ int dx,
+ int dy)
+{
+ if (pixman_region32_n_rects (region) == 1 &&
+ pixman_region32_n_rects (clip) == 1)
+ {
+ pixman_box32_t * rbox = pixman_region32_rectangles (region, NULL);
+ pixman_box32_t * cbox = pixman_region32_rectangles (clip, NULL);
+ int v;
+
+ if (rbox->x1 < (v = cbox->x1 + dx))
+ rbox->x1 = v;
+ if (rbox->x2 > (v = cbox->x2 + dx))
+ rbox->x2 = v;
+ if (rbox->y1 < (v = cbox->y1 + dy))
+ rbox->y1 = v;
+ if (rbox->y2 > (v = cbox->y2 + dy))
+ rbox->y2 = v;
+ if (rbox->x1 >= rbox->x2 || rbox->y1 >= rbox->y2)
+ {
+ pixman_region32_init (region);
+ return FALSE;
+ }
+ }
+ else if (!pixman_region32_not_empty (clip))
+ {
+ return FALSE;
+ }
+ else
+ {
+ if (dx || dy)
+ pixman_region32_translate (region, -dx, -dy);
+
+ if (!pixman_region32_intersect (region, region, clip))
+ return FALSE;
+
+ if (dx || dy)
+ pixman_region32_translate (region, dx, dy);
+ }
+
+ return pixman_region32_not_empty (region);
+}
+
+static inline pixman_bool_t
+clip_source_image (pixman_region32_t * region,
+ pixman_image_t * image,
+ int dx,
+ int dy)
+{
+ /* Source clips are ignored, unless they are explicitly turned on
+ * and the clip in question was set by an X client. (Because if
+ * the clip was not set by a client, then it is a hierarchy
+ * clip and those should always be ignored for sources).
+ */
+ if (!image->common.clip_sources || !image->common.client_clip)
+ return TRUE;
+
+ return clip_general_image (region,
+ &image->common.clip_region,
+ dx, dy);
+}
+
+/*
+ * returns FALSE if the final region is empty. Indistinguishable from
+ * an allocation failure, but rendering ignores those anyways.
+ */
+static pixman_bool_t
+pixman_compute_composite_region32 (pixman_region32_t * region,
+ pixman_image_t * src_image,
+ pixman_image_t * mask_image,
+ pixman_image_t * dst_image,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t mask_x,
+ int32_t mask_y,
+ int32_t dest_x,
+ int32_t dest_y,
+ int32_t width,
+ int32_t height)
+{
+ region->extents.x1 = dest_x;
+ region->extents.x2 = dest_x + width;
+ region->extents.y1 = dest_y;
+ region->extents.y2 = dest_y + height;
+
+ 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->data = 0;
+
+ /* Check for empty operation */
+ if (region->extents.x1 >= region->extents.x2 ||
+ region->extents.y1 >= region->extents.y2)
+ {
+ pixman_region32_init (region);
+ return FALSE;
+ }
+
+ if (dst_image->common.have_clip_region)
+ {
+ if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
+ {
+ pixman_region32_fini (region);
+ return FALSE;
+ }
+ }
+
+ if (dst_image->common.alpha_map && dst_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))
+ {
+ pixman_region32_fini (region);
+ return FALSE;
+ }
+ }
+
+ /* clip against src */
+ if (src_image->common.have_clip_region)
+ {
+ if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))
+ {
+ pixman_region32_fini (region);
+ return FALSE;
+ }
+ }
+ if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)
+ {
+ if (!clip_source_image (region, (pixman_image_t *)src_image->common.alpha_map,
+ dest_x - (src_x - src_image->common.alpha_origin_x),
+ dest_y - (src_y - src_image->common.alpha_origin_y)))
+ {
+ pixman_region32_fini (region);
+ return FALSE;
+ }
+ }
+ /* clip against mask */
+ if (mask_image && mask_image->common.have_clip_region)
+ {
+ if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))
+ {
+ pixman_region32_fini (region);
+ return FALSE;
+ }
+ if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)
+ {
+ if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,
+ dest_x - (mask_x - mask_image->common.alpha_origin_x),
+ dest_y - (mask_y - mask_image->common.alpha_origin_y)))
+ {
+ pixman_region32_fini (region);
+ return FALSE;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+walk_region_internal (pixman_implementation_t *imp,
+ pixman_op_t op,
+ pixman_image_t * src_image,
+ pixman_image_t * mask_image,
+ pixman_image_t * dst_image,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t mask_x,
+ int32_t mask_y,
+ int32_t dest_x,
+ int32_t dest_y,
+ int32_t width,
+ int32_t height,
+ pixman_bool_t src_repeat,
+ pixman_bool_t mask_repeat,
+ pixman_region32_t * region,
+ pixman_composite_func_t composite_rect)
+{
+ int n;
+ const pixman_box32_t *pbox;
+ int w, h, w_this, h_this;
+ int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
+
+ pbox = pixman_region32_rectangles (region, &n);
+ while (n--)
+ {
+ h = pbox->y2 - pbox->y1;
+ y_src = pbox->y1 - dest_y + src_y;
+ y_msk = pbox->y1 - dest_y + mask_y;
+ y_dst = pbox->y1;
+
+ while (h)
+ {
+ h_this = h;
+ w = pbox->x2 - pbox->x1;
+ x_src = pbox->x1 - dest_x + src_x;
+ x_msk = pbox->x1 - dest_x + mask_x;
+ x_dst = pbox->x1;
+
+ if (mask_repeat)
+ {
+ y_msk = MOD (y_msk, mask_image->bits.height);
+ if (h_this > mask_image->bits.height - y_msk)
+ h_this = mask_image->bits.height - y_msk;
+ }
+
+ if (src_repeat)
+ {
+ y_src = MOD (y_src, src_image->bits.height);
+ if (h_this > src_image->bits.height - y_src)
+ h_this = src_image->bits.height - y_src;
+ }
+
+ while (w)
+ {
+ w_this = w;
+
+ if (mask_repeat)
+ {
+ x_msk = MOD (x_msk, mask_image->bits.width);
+ if (w_this > mask_image->bits.width - x_msk)
+ w_this = mask_image->bits.width - x_msk;
+ }
+
+ if (src_repeat)
+ {
+ x_src = MOD (x_src, src_image->bits.width);
+ if (w_this > src_image->bits.width - x_src)
+ w_this = src_image->bits.width - x_src;
+ }
+
+ (*composite_rect) (imp, op,
+ src_image, mask_image, dst_image,
+ x_src, y_src, x_msk, y_msk, x_dst, y_dst,
+ w_this, h_this);
+ w -= w_this;
+
+ x_src += w_this;
+ x_msk += w_this;
+ x_dst += w_this;
+ }
+
+ h -= h_this;
+ y_src += h_this;
+ y_msk += h_this;
+ y_dst += h_this;
+ }
+
+ pbox++;
+ }
+}
+
+static void
+get_image_info (pixman_image_t *image,
+ pixman_format_code_t *code,
+ uint32_t *flags)
+{
+ *flags = 0;
+
+ if (!image)
+ {
+ *code = PIXMAN_null;
+ }
+ else
+ {
+ if (!image->common.transform)
+ {
+ *flags |= FAST_PATH_ID_TRANSFORM;
+ }
+ else
+ {
+ if (image->common.transform->matrix[0][1] == 0 &&
+ image->common.transform->matrix[1][0] == 0 &&
+ image->common.transform->matrix[2][0] == 0 &&
+ image->common.transform->matrix[2][1] == 0 &&
+ image->common.transform->matrix[2][2] == pixman_fixed_1)
+ {
+ *flags |= FAST_PATH_SCALE_TRANSFORM;
+ }
+ }
+
+ if (!image->common.alpha_map)
+ *flags |= FAST_PATH_NO_ALPHA_MAP;
+
+ if (image->common.filter != PIXMAN_FILTER_CONVOLUTION)
+ {
+ *flags |= FAST_PATH_NO_CONVOLUTION_FILTER;
+
+ if (image->common.filter == PIXMAN_FILTER_NEAREST)
+ *flags |= FAST_PATH_NEAREST_FILTER;
+ }
+
+ if (image->common.repeat != PIXMAN_REPEAT_PAD)
+ *flags |= FAST_PATH_NO_PAD_REPEAT;
+
+ if (image->common.repeat != PIXMAN_REPEAT_REFLECT)
+ *flags |= FAST_PATH_NO_REFLECT_REPEAT;
+
+ *flags |= (FAST_PATH_NO_ACCESSORS | FAST_PATH_NO_WIDE_FORMAT);
+ if (image->type == BITS)
+ {
+ if (image->bits.read_func || image->bits.write_func)
+ *flags &= ~FAST_PATH_NO_ACCESSORS;
+
+ if (PIXMAN_FORMAT_IS_WIDE (image->bits.format))
+ *flags &= ~FAST_PATH_NO_WIDE_FORMAT;
+ }
+
+ if (image->common.component_alpha)
+ *flags |= FAST_PATH_COMPONENT_ALPHA;
+ else
+ *flags |= FAST_PATH_UNIFIED_ALPHA;
+
+ if (_pixman_image_is_solid (image))
+ *code = PIXMAN_solid;
+ else if (image->common.type == BITS)
+ *code = image->bits.format;
+ else
+ *code = PIXMAN_unknown;
+ }
+}
+
+static force_inline pixman_bool_t
+image_covers (pixman_image_t *image,
+ pixman_box32_t *extents,
+ int x,
+ int y)
+{
+ if (image->common.type == BITS &&
+ image->common.repeat == PIXMAN_REPEAT_NONE)
+ {
+ if (x > extents->x1 || y > extents->y1 ||
+ x + image->bits.width < extents->x2 ||
+ y + image->bits.height < extents->y2)
+ {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+static pixman_bool_t
+_pixman_run_fast_path (const pixman_fast_path_t *paths,
+ pixman_implementation_t * imp,
+ pixman_op_t op,
+ pixman_image_t * src,
+ pixman_image_t * mask,
+ pixman_image_t * dest,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t mask_x,
+ int32_t mask_y,
+ int32_t dest_x,
+ int32_t dest_y,
+ int32_t width,
+ int32_t height)
+{
+ pixman_format_code_t src_format, mask_format, dest_format;
+ uint32_t src_flags, mask_flags, dest_flags;
+ pixman_composite_func_t func;
+ const pixman_fast_path_t *info;
+ pixman_bool_t result;
+ pixman_region32_t region;
+ pixman_box32_t *extents;
+
+ get_image_info (src, &src_format, &src_flags);
+ get_image_info (mask, &mask_format, &mask_flags);
+ get_image_info (dest, &dest_format, &dest_flags);
+
+ /* Check for pixbufs */
+ if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&
+ (src->type == BITS && src->bits.bits == mask->bits.bits) &&
+ (src->common.repeat == mask->common.repeat) &&
+ (src_x == mask_x && src_y == mask_y))
+ {
+ if (src_format == PIXMAN_x8b8g8r8)
+ src_format = mask_format = PIXMAN_pixbuf;
+ else if (src_format == PIXMAN_x8r8g8b8)
+ src_format = mask_format = PIXMAN_rpixbuf;
+ }
+
+ pixman_region32_init (®ion);
+
+ if (!pixman_compute_composite_region32 (
+ ®ion, src, mask, dest,
+ src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))
+ {
+ return TRUE;
+ }
+
+ result = FALSE;
+
+ extents = pixman_region32_extents (®ion);
+
+ if (image_covers (src, extents, dest_x - src_x, dest_y - src_y))
+ src_flags |= FAST_PATH_COVERS_CLIP;
+
+ if (mask && image_covers (mask, extents, dest_x - mask_x, dest_y - mask_y))
+ mask_flags |= FAST_PATH_COVERS_CLIP;
+
+ func = NULL;
+ for (info = paths; info->op != PIXMAN_OP_NONE; ++info)
+ {
+ if ((info->op == op || info->op == PIXMAN_OP_any) &&
+ /* src */
+ ((info->src_format == src_format) ||
+ (info->src_format == PIXMAN_any)) &&
+ (info->src_flags & src_flags) == info->src_flags &&
+ /* mask */
+ ((info->mask_format == mask_format) ||
+ (info->mask_format == PIXMAN_any)) &&
+ (info->mask_flags & mask_flags) == info->mask_flags &&
+ /* dest */
+ ((info->dest_format == dest_format) ||
+ (info->dest_format == PIXMAN_any)) &&
+ (info->dest_flags & dest_flags) == info->dest_flags)
+ {
+ func = info->func;
+ break;
+ }
+ }
+
+ if (func)
+ {
+ pixman_bool_t src_repeat, mask_repeat;
+
+ src_repeat =
+ src->type == BITS &&
+ src_flags & FAST_PATH_ID_TRANSFORM &&
+ src->common.repeat == PIXMAN_REPEAT_NORMAL &&
+ src_format != PIXMAN_solid;
+
+ mask_repeat =
+ mask &&
+ mask->type == BITS &&
+ mask_flags & FAST_PATH_ID_TRANSFORM &&
+ mask->common.repeat == PIXMAN_REPEAT_NORMAL &&
+ mask_format != PIXMAN_solid;
+
+ walk_region_internal (imp, op,
+ src, mask, dest,
+ src_x, src_y, mask_x, mask_y,
+ dest_x, dest_y,
+ width, height,
+ src_repeat, mask_repeat,
+ ®ion,
+ func);
+
+ result = TRUE;
+ }
+
+ pixman_region32_fini (®ion);
+ return result;
+}
+
static void
do_composite (pixman_implementation_t *imp,
pixman_op_t op,
return pixman_format_supported_source (format);
}
+PIXMAN_EXPORT pixman_bool_t
+pixman_compute_composite_region (pixman_region16_t * region,
+ pixman_image_t * src_image,
+ pixman_image_t * mask_image,
+ pixman_image_t * dst_image,
+ int16_t src_x,
+ int16_t src_y,
+ int16_t mask_x,
+ int16_t mask_y,
+ int16_t dest_x,
+ int16_t dest_y,
+ uint16_t width,
+ uint16_t height)
+{
+ pixman_region32_t r32;
+ pixman_bool_t retval;
+
+ pixman_region32_init (&r32);
+
+ retval = pixman_compute_composite_region32 (
+ &r32, src_image, mask_image, dst_image,
+ src_x, src_y, mask_x, mask_y, dest_x, dest_y,
+ width, height);
+
+ if (retval)
+ {
+ if (!pixman_region16_copy_from_region32 (region, &r32))
+ retval = FALSE;
+ }
+
+ pixman_region32_fini (&r32);
+ return retval;
+}
projects / platform / upstream / pixman.git / commitdiff