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pjs/gfx/cairo/tee-surfaces-pointwise.patch

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# HG changeset patch
# User Robert O'Callahan <robert@ocallahan.org>
# Date 1294019288 -46800
# Node ID bacc54d452a9fddb5a0d6a1442ec7be4de81ffa7
# Parent ccba8826be1451d0e61d0df38363dadffb20ba48
Bug 593604. Part 2: When compositing a tee surface into another tee surface, try to compose the subsurfaces pointwise. r=jrmuizel,a=blocking
diff --git a/gfx/cairo/cairo/src/cairo-tee-surface.c b/gfx/cairo/cairo/src/cairo-tee-surface.c
--- a/gfx/cairo/cairo/src/cairo-tee-surface.c
+++ b/gfx/cairo/cairo/src/cairo-tee-surface.c
@@ -186,35 +186,72 @@ static void
_cairo_tee_surface_get_font_options (void *abstract_surface,
cairo_font_options_t *options)
{
cairo_tee_surface_t *surface = abstract_surface;
_cairo_surface_wrapper_get_font_options (&surface->master, options);
}
+static const cairo_pattern_t *
+_cairo_tee_surface_match_source (cairo_tee_surface_t *surface,
+ const cairo_pattern_t *source,
+ int index,
+ cairo_surface_wrapper_t *dest,
+ cairo_surface_pattern_t *temp)
+{
+ cairo_surface_t *s;
+ cairo_status_t status = cairo_pattern_get_surface ((cairo_pattern_t *)source, &s);
+ if (status == CAIRO_STATUS_SUCCESS &&
+ cairo_surface_get_type (s) == CAIRO_SURFACE_TYPE_TEE) {
+ cairo_surface_t *tee_surf = cairo_tee_surface_index (s, index);
+ if (tee_surf->status == CAIRO_STATUS_SUCCESS &&
+ tee_surf->backend == dest->target->backend) {
+ status = _cairo_pattern_init_copy (&temp->base, source);
+ if (status == CAIRO_STATUS_SUCCESS) {
+ cairo_surface_destroy (temp->surface);
+ temp->surface = tee_surf;
+ cairo_surface_reference (temp->surface);
+ return &temp->base;
+ }
+ }
+ }
+
+ return source;
+}
+
static cairo_int_status_t
_cairo_tee_surface_paint (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
cairo_clip_t *clip)
{
cairo_tee_surface_t *surface = abstract_surface;
cairo_surface_wrapper_t *slaves;
int n, num_slaves;
cairo_status_t status;
+ const cairo_pattern_t *matched_source;
+ cairo_surface_pattern_t temp;
- status = _cairo_surface_wrapper_paint (&surface->master, op, source, clip);
+ matched_source = _cairo_tee_surface_match_source (surface, source, 0, &surface->master, &temp);
+ status = _cairo_surface_wrapper_paint (&surface->master, op, matched_source, clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
num_slaves = _cairo_array_num_elements (&surface->slaves);
slaves = _cairo_array_index (&surface->slaves, 0);
for (n = 0; n < num_slaves; n++) {
- status = _cairo_surface_wrapper_paint (&slaves[n], op, source, clip);
+ matched_source = _cairo_tee_surface_match_source (surface, source, n + 1, &slaves[n], &temp);
+ status = _cairo_surface_wrapper_paint (&slaves[n], op, matched_source, clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_int_status_t
@@ -223,27 +260,37 @@ _cairo_tee_surface_mask (void *abstrac
const cairo_pattern_t *source,
const cairo_pattern_t *mask,
cairo_clip_t *clip)
{
cairo_tee_surface_t *surface = abstract_surface;
cairo_surface_wrapper_t *slaves;
int n, num_slaves;
cairo_status_t status;
+ const cairo_pattern_t *matched_source;
+ cairo_surface_pattern_t temp;
+ matched_source = _cairo_tee_surface_match_source (surface, source, 0, &surface->master, &temp);
status = _cairo_surface_wrapper_mask (&surface->master,
- op, source, mask, clip);
+ op, matched_source, mask, clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
num_slaves = _cairo_array_num_elements (&surface->slaves);
slaves = _cairo_array_index (&surface->slaves, 0);
for (n = 0; n < num_slaves; n++) {
+ matched_source = _cairo_tee_surface_match_source (surface, source, n + 1, &slaves[n], &temp);
status = _cairo_surface_wrapper_mask (&slaves[n],
- op, source, mask, clip);
+ op, matched_source, mask, clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_int_status_t
@@ -257,35 +304,45 @@ _cairo_tee_surface_stroke (void *abst
double tolerance,
cairo_antialias_t antialias,
cairo_clip_t *clip)
{
cairo_tee_surface_t *surface = abstract_surface;
cairo_surface_wrapper_t *slaves;
int n, num_slaves;
cairo_status_t status;
+ const cairo_pattern_t *matched_source;
+ cairo_surface_pattern_t temp;
+ matched_source = _cairo_tee_surface_match_source (surface, source, 0, &surface->master, &temp);
status = _cairo_surface_wrapper_stroke (&surface->master,
- op, source,
+ op, matched_source,
path, style,
ctm, ctm_inverse,
tolerance, antialias,
clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
num_slaves = _cairo_array_num_elements (&surface->slaves);
slaves = _cairo_array_index (&surface->slaves, 0);
for (n = 0; n < num_slaves; n++) {
+ matched_source = _cairo_tee_surface_match_source (surface, source, n + 1, &slaves[n], &temp);
status = _cairo_surface_wrapper_stroke (&slaves[n],
- op, source,
+ op, matched_source,
path, style,
ctm, ctm_inverse,
tolerance, antialias,
clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_int_status_t
@@ -297,33 +354,43 @@ _cairo_tee_surface_fill (void *abstra
double tolerance,
cairo_antialias_t antialias,
cairo_clip_t *clip)
{
cairo_tee_surface_t *surface = abstract_surface;
cairo_surface_wrapper_t *slaves;
int n, num_slaves;
cairo_status_t status;
+ const cairo_pattern_t *matched_source;
+ cairo_surface_pattern_t temp;
+ matched_source = _cairo_tee_surface_match_source (surface, source, 0, &surface->master, &temp);
status = _cairo_surface_wrapper_fill (&surface->master,
- op, source,
+ op, matched_source,
path, fill_rule,
tolerance, antialias,
clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
num_slaves = _cairo_array_num_elements (&surface->slaves);
slaves = _cairo_array_index (&surface->slaves, 0);
for (n = 0; n < num_slaves; n++) {
+ matched_source = _cairo_tee_surface_match_source (surface, source, n + 1, &slaves[n], &temp);
status = _cairo_surface_wrapper_fill (&slaves[n],
- op, source,
+ op, matched_source,
path, fill_rule,
tolerance, antialias,
clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
return status;
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_bool_t
@@ -346,46 +413,56 @@ _cairo_tee_surface_show_text_glyphs (voi
cairo_scaled_font_t *scaled_font,
cairo_clip_t *clip)
{
cairo_tee_surface_t *surface = abstract_surface;
cairo_surface_wrapper_t *slaves;
int n, num_slaves;
cairo_status_t status;
cairo_glyph_t *glyphs_copy;
+ const cairo_pattern_t *matched_source;
+ cairo_surface_pattern_t temp;
/* XXX: This copying is ugly. */
glyphs_copy = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t));
if (unlikely (glyphs_copy == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
memcpy (glyphs_copy, glyphs, sizeof (cairo_glyph_t) * num_glyphs);
+ matched_source = _cairo_tee_surface_match_source (surface, source, 0, &surface->master, &temp);
status = _cairo_surface_wrapper_show_text_glyphs (&surface->master, op,
- source,
+ matched_source,
utf8, utf8_len,
glyphs_copy, num_glyphs,
clusters, num_clusters,
cluster_flags,
scaled_font,
clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
goto CLEANUP;
num_slaves = _cairo_array_num_elements (&surface->slaves);
slaves = _cairo_array_index (&surface->slaves, 0);
for (n = 0; n < num_slaves; n++) {
memcpy (glyphs_copy, glyphs, sizeof (cairo_glyph_t) * num_glyphs);
+ matched_source = _cairo_tee_surface_match_source (surface, source, n + 1, &slaves[n], &temp);
status = _cairo_surface_wrapper_show_text_glyphs (&slaves[n], op,
- source,
+ matched_source,
utf8, utf8_len,
glyphs_copy, num_glyphs,
clusters, num_clusters,
cluster_flags,
scaled_font,
clip);
+ if (matched_source == &temp.base) {
+ _cairo_pattern_fini (&temp.base);
+ }
if (unlikely (status))
goto CLEANUP;
}
CLEANUP:
free (glyphs_copy);
return status;
}
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