[gtk/path-work-rebased: 7/121] gsk: Add GskStrokeNode
- From: Matthias Clasen <matthiasc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk/path-work-rebased: 7/121] gsk: Add GskStrokeNode
- Date: Sun, 5 Dec 2021 03:58:51 +0000 (UTC)
commit c8928bf06480d41a3bd8a4d4c31e72a219b04cd3
Author: Benjamin Otte <otte redhat com>
Date: Wed Nov 11 07:36:04 2020 +0100
gsk: Add GskStrokeNode
gsk/broadway/gskbroadwayrenderer.c | 2 +
gsk/gl/gskglrenderjob.c | 1 +
gsk/gskenums.h | 1 +
gsk/gskrendernode.h | 15 ++++
gsk/gskrendernodeimpl.c | 180 +++++++++++++++++++++++++++++++++++++
gsk/gskrendernodeparser.c | 22 ++++-
gsk/vulkan/gskvulkanrenderpass.c | 1 +
gtk/inspector/recorder.c | 47 +++++++++-
8 files changed, 265 insertions(+), 4 deletions(-)
---
diff --git a/gsk/broadway/gskbroadwayrenderer.c b/gsk/broadway/gskbroadwayrenderer.c
index 6a0b2a2aaf..8cbfa48418 100644
--- a/gsk/broadway/gskbroadwayrenderer.c
+++ b/gsk/broadway/gskbroadwayrenderer.c
@@ -270,6 +270,7 @@ collect_reused_child_nodes (GskRenderer *renderer,
case GSK_CROSS_FADE_NODE:
case GSK_BLUR_NODE:
case GSK_FILL_NODE:
+ case GSK_STROKE_NODE:
default:
@@ -857,6 +858,7 @@ gsk_broadway_renderer_add_node (GskRenderer *renderer,
case GSK_BLUR_NODE:
case GSK_GL_SHADER_NODE:
case GSK_FILL_NODE:
+ case GSK_STROKE_NODE:
default:
break; /* Fallback */
}
diff --git a/gsk/gl/gskglrenderjob.c b/gsk/gl/gskglrenderjob.c
index ef4b61d32b..aa2c0cf26e 100644
--- a/gsk/gl/gskglrenderjob.c
+++ b/gsk/gl/gskglrenderjob.c
@@ -3768,6 +3768,7 @@ gsk_gl_render_job_visit_node (GskGLRenderJob *job,
break;
case GSK_FILL_NODE:
+ case GSK_STROKE_NODE:
gsk_gl_render_job_visit_as_fallback (job, node);
break;
diff --git a/gsk/gskenums.h b/gsk/gskenums.h
index 0bd84b843d..bb7fd166c5 100644
--- a/gsk/gskenums.h
+++ b/gsk/gskenums.h
@@ -74,6 +74,7 @@ typedef enum {
GSK_CLIP_NODE,
GSK_ROUNDED_CLIP_NODE,
GSK_FILL_NODE,
+ GSK_STROKE_NODE,
GSK_SHADOW_NODE,
GSK_BLEND_NODE,
GSK_CROSS_FADE_NODE,
diff --git a/gsk/gskrendernode.h b/gsk/gskrendernode.h
index c80e9ec890..e5243e5143 100644
--- a/gsk/gskrendernode.h
+++ b/gsk/gskrendernode.h
@@ -159,6 +159,7 @@ GskRenderNode * gsk_render_node_deserialize (GBytes
#define GSK_TYPE_CLIP_NODE (gsk_clip_node_get_type())
#define GSK_TYPE_ROUNDED_CLIP_NODE (gsk_rounded_clip_node_get_type())
#define GSK_TYPE_FILL_NODE (gsk_fill_node_get_type())
+#define GSK_TYPE_STROKE_NODE (gsk_stroke_node_get_type())
#define GSK_TYPE_SHADOW_NODE (gsk_shadow_node_get_type())
#define GSK_TYPE_BLEND_NODE (gsk_blend_node_get_type())
#define GSK_TYPE_CROSS_FADE_NODE (gsk_cross_fade_node_get_type())
@@ -186,6 +187,7 @@ typedef struct _GskRepeatNode GskRepeatNode;
typedef struct _GskClipNode GskClipNode;
typedef struct _GskRoundedClipNode GskRoundedClipNode;
typedef struct _GskFillNode GskFillNode;
+typedef struct _GskStrokeNode GskStrokeNode;
typedef struct _GskShadowNode GskShadowNode;
typedef struct _GskBlendNode GskBlendNode;
typedef struct _GskCrossFadeNode GskCrossFadeNode;
@@ -460,6 +462,19 @@ GskPath * gsk_fill_node_get_path (const GskRender
GDK_AVAILABLE_IN_ALL
GskFillRule gsk_fill_node_get_fill_rule (const GskRenderNode *node);
+GDK_AVAILABLE_IN_ALL
+GType gsk_stroke_node_get_type (void) G_GNUC_CONST;
+GDK_AVAILABLE_IN_ALL
+GskRenderNode * gsk_stroke_node_new (GskRenderNode *child,
+ GskPath *path,
+ const GskStroke *stroke);
+GDK_AVAILABLE_IN_ALL
+GskRenderNode * gsk_stroke_node_get_child (const GskRenderNode *node);
+GDK_AVAILABLE_IN_ALL
+GskPath * gsk_stroke_node_get_path (const GskRenderNode *node);
+GDK_AVAILABLE_IN_ALL
+const GskStroke * gsk_stroke_node_get_stroke (const GskRenderNode *node);
+
GDK_AVAILABLE_IN_ALL
GType gsk_shadow_node_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index 6e9322a8de..b3dd1348bf 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -26,6 +26,7 @@
#include "gskpath.h"
#include "gskrendererprivate.h"
#include "gskroundedrectprivate.h"
+#include "gskstrokeprivate.h"
#include "gsktransformprivate.h"
#include "gdk/gdktextureprivate.h"
@@ -3934,6 +3935,168 @@ gsk_fill_node_get_fill_rule (const GskRenderNode *node)
return self->fill_rule;
}
+/*** GSK_STROKE_NODE ***/
+
+struct _GskStrokeNode
+{
+ GskRenderNode render_node;
+
+ GskRenderNode *child;
+ GskPath *path;
+ GskStroke stroke;
+};
+
+static void
+gsk_stroke_node_finalize (GskRenderNode *node)
+{
+ GskStrokeNode *self = (GskStrokeNode *) node;
+ GskRenderNodeClass *parent_class = g_type_class_peek (g_type_parent (GSK_TYPE_STROKE_NODE));
+
+ gsk_render_node_unref (self->child);
+ gsk_path_unref (self->path);
+ gsk_stroke_clear (&self->stroke);
+
+ parent_class->finalize (node);
+}
+
+static void
+gsk_stroke_node_draw (GskRenderNode *node,
+ cairo_t *cr)
+{
+ GskStrokeNode *self = (GskStrokeNode *) node;
+
+ cairo_save (cr);
+
+ gsk_cairo_rectangle (cr, &self->child->bounds);
+ cairo_clip (cr);
+
+ cairo_push_group (cr);
+ gsk_render_node_draw (self->child, cr);
+ cairo_pop_group_to_source (cr);
+
+ gsk_stroke_to_cairo (&self->stroke, cr);
+
+ gsk_path_to_cairo (self->path, cr);
+ cairo_stroke (cr);
+
+ cairo_restore (cr);
+}
+
+static void
+gsk_stroke_node_diff (GskRenderNode *node1,
+ GskRenderNode *node2,
+ cairo_region_t *region)
+{
+ GskStrokeNode *self1 = (GskStrokeNode *) node1;
+ GskStrokeNode *self2 = (GskStrokeNode *) node2;
+
+ if (self1->path == self2->path &&
+ gsk_stroke_equal (&self1->stroke, &self2->stroke))
+ {
+ cairo_region_t *sub;
+
+ sub = cairo_region_create();
+ gsk_render_node_diff (self1->child, self2->child, sub);
+ cairo_region_union (region, sub);
+ cairo_region_destroy (sub);
+ }
+ else
+ {
+ gsk_render_node_diff_impossible (node1, node2, region);
+ }
+}
+
+/**
+ * gsk_stroke_node_new:
+ * @child: The node to stroke the area with
+ * @path: (transfer none): The path describing the area to stroke
+ * @stroke: (transfer none): The stroke attributes to use
+ *
+ * Creates a `GskRenderNode` that will stroke the @child along the given
+ * @path using the attributes defined in @stroke.
+ *
+ * Returns: (transfer none) (type GskStrokeNode): A new `GskRenderNode`
+ */
+GskRenderNode *
+gsk_stroke_node_new (GskRenderNode *child,
+ GskPath *path,
+ const GskStroke *stroke)
+{
+ GskStrokeNode *self;
+ GskRenderNode *node;
+
+ g_return_val_if_fail (GSK_IS_RENDER_NODE (child), NULL);
+ g_return_val_if_fail (path != NULL, NULL);
+ g_return_val_if_fail (stroke != NULL, NULL);
+
+ self = gsk_render_node_alloc (GSK_STROKE_NODE);
+ node = (GskRenderNode *) self;
+
+ self->child = gsk_render_node_ref (child);
+ self->path = gsk_path_ref (path);
+ gsk_stroke_init_copy (&self->stroke, stroke);
+
+ /* XXX: Figure out a way to compute bounds from the path */
+ graphene_rect_init_from_rect (&node->bounds, &child->bounds);
+
+ return node;
+}
+
+/**
+ * gsk_stroke_node_get_child:
+ * @node: (type GskStrokeNode): a stroke `GskRenderNode`
+ *
+ * Gets the child node that is getting drawn by the given @node.
+ *
+ * Returns: (transfer none): The child that is getting drawn
+ **/
+GskRenderNode *
+gsk_stroke_node_get_child (const GskRenderNode *node)
+{
+ const GskStrokeNode *self = (const GskStrokeNode *) node;
+
+ g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_STROKE_NODE), NULL);
+
+ return self->child;
+}
+
+/**
+ * gsk_stroke_node_get_path:
+ * @node: (type GskStrokeNode): a stroke `GskRenderNode`
+ *
+ * Retrievs the path that will be stroked with the contents of
+ * the @node.
+ *
+ * Returns: (transfer none): a `GskPath`
+ */
+GskPath *
+gsk_stroke_node_get_path (const GskRenderNode *node)
+{
+ const GskStrokeNode *self = (const GskStrokeNode *) node;
+
+ g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_STROKE_NODE), NULL);
+
+ return self->path;
+}
+
+/**
+ * gsk_stroke_node_get_stroke:
+ * @node: (type GskStrokeNode): a stroke `GskRenderNode`
+ *
+ * Retrievs the stroke attributes used in this @node.
+ *
+ * Returns: a `GskStroke`
+ */
+const GskStroke *
+gsk_stroke_node_get_stroke (const GskRenderNode *node)
+{
+ const GskStrokeNode *self = (const GskStrokeNode *) node;
+
+ g_return_val_if_fail (GSK_IS_RENDER_NODE_TYPE (node, GSK_STROKE_NODE), NULL);
+
+ return &self->stroke;
+}
+
/*** GSK_SHADOW_NODE ***/
/**
@@ -5457,6 +5620,7 @@ GSK_DEFINE_RENDER_NODE_TYPE (gsk_repeat_node, GSK_REPEAT_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_clip_node, GSK_CLIP_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_rounded_clip_node, GSK_ROUNDED_CLIP_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_fill_node, GSK_FILL_NODE)
+GSK_DEFINE_RENDER_NODE_TYPE (gsk_stroke_node, GSK_STROKE_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_shadow_node, GSK_SHADOW_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_blend_node, GSK_BLEND_NODE)
GSK_DEFINE_RENDER_NODE_TYPE (gsk_cross_fade_node, GSK_CROSS_FADE_NODE)
@@ -5772,6 +5936,22 @@ gsk_render_node_init_types_once (void)
gsk_render_node_types[GSK_FILL_NODE] = node_type;
}
+ {
+ const GskRenderNodeTypeInfo node_info =
+ {
+ GSK_STROKE_NODE,
+ sizeof (GskStrokeNode),
+ NULL,
+ gsk_stroke_node_finalize,
+ gsk_stroke_node_draw,
+ NULL,
+ gsk_stroke_node_diff,
+ };
+
+ GType node_type = gsk_render_node_type_register_static (I_("GskStrokeNode"), &node_info);
+ gsk_render_node_types[GSK_STROKE_NODE] = node_type;
+ }
+
{
const GskRenderNodeTypeInfo node_info =
{
diff --git a/gsk/gskrendernodeparser.c b/gsk/gskrendernodeparser.c
index a755e0e87a..a36f91c8b7 100644
--- a/gsk/gskrendernodeparser.c
+++ b/gsk/gskrendernodeparser.c
@@ -26,6 +26,7 @@
#include "gskpath.h"
#include "gskroundedrectprivate.h"
#include "gskrendernodeprivate.h"
+#include "gskstroke.h"
#include "gsktransformprivate.h"
#include "gdk/gdkrgbaprivate.h"
@@ -2101,7 +2102,7 @@ append_float_param (Printer *p,
float value,
float default_value)
{
- /* Don't approximate-compare here, better be topo verbose */
+ /* Don't approximate-compare here, better be too verbose */
if (value == default_value)
return;
@@ -2559,6 +2560,25 @@ render_node_print (Printer *p,
}
break;
+ case GSK_STROKE_NODE:
+ {
+ const GskStroke *stroke;
+ char *path_str;
+
+ start_node (p, "stroke");
+
+ append_node_param (p, "child", gsk_stroke_node_get_child (node));
+ path_str = gsk_path_to_string (gsk_stroke_node_get_path (node));
+ append_string_param (p, "path", path_str);
+ g_free (path_str);
+
+ stroke = gsk_stroke_node_get_stroke (node);
+ append_float_param (p, "line-width", gsk_stroke_get_line_width (stroke), 0.0);
+
+ end_node (p);
+ }
+ break;
+
case GSK_TRANSFORM_NODE:
{
GskTransform *transform = gsk_transform_node_get_transform (node);
diff --git a/gsk/vulkan/gskvulkanrenderpass.c b/gsk/vulkan/gskvulkanrenderpass.c
index c3d517e9f2..dc01be70d1 100644
--- a/gsk/vulkan/gskvulkanrenderpass.c
+++ b/gsk/vulkan/gskvulkanrenderpass.c
@@ -261,6 +261,7 @@ gsk_vulkan_render_pass_add_node (GskVulkanRenderPass *self,
case GSK_REPEATING_RADIAL_GRADIENT_NODE:
case GSK_CONIC_GRADIENT_NODE:
case GSK_FILL_NODE:
+ case GSK_STROKE_NODE:
default:
FALLBACK ("Unsupported node '%s'", g_type_name_from_instance ((GTypeInstance *) node));
diff --git a/gtk/inspector/recorder.c b/gtk/inspector/recorder.c
index 0f109b8fe3..fda54aada5 100644
--- a/gtk/inspector/recorder.c
+++ b/gtk/inspector/recorder.c
@@ -167,6 +167,9 @@ create_list_model_for_render_node (GskRenderNode *node)
case GSK_FILL_NODE:
return create_render_node_list_model ((GskRenderNode *[1]) { gsk_fill_node_get_child (node) }, 1);
+ case GSK_STROKE_NODE:
+ return create_render_node_list_model ((GskRenderNode *[1]) { gsk_stroke_node_get_child (node) }, 1);
+
case GSK_SHADOW_NODE:
return create_render_node_list_model ((GskRenderNode *[1]) { gsk_shadow_node_get_child (node) }, 1);
@@ -290,6 +293,8 @@ node_type_name (GskRenderNodeType type)
return "Rounded Clip";
case GSK_FILL_NODE:
return "Fill";
+ case GSK_STROKE_NODE:
+ return "Stroke";
case GSK_SHADOW_NODE:
return "Shadow";
case GSK_BLEND_NODE:
@@ -330,6 +335,7 @@ node_name (GskRenderNode *node)
case GSK_CLIP_NODE:
case GSK_ROUNDED_CLIP_NODE:
case GSK_FILL_NODE:
+ case GSK_STROKE_NODE:
case GSK_SHADOW_NODE:
case GSK_BLEND_NODE:
case GSK_CROSS_FADE_NODE:
@@ -611,6 +617,20 @@ add_float_row (GtkListStore *store,
g_free (text);
}
+static const char *
+enum_to_nick (GType type,
+ int value)
+{
+ GEnumClass *class;
+ GEnumValue *v;
+
+ class = g_type_class_ref (type);
+ v = g_enum_get_value (class, value);
+ g_type_class_unref (class);
+
+ return v->value_nick;
+}
+
static void
populate_render_node_properties (GtkListStore *store,
GskRenderNode *node)
@@ -873,9 +893,7 @@ populate_render_node_properties (GtkListStore *store,
case GSK_BLEND_NODE:
{
GskBlendMode mode = gsk_blend_node_get_blend_mode (node);
- tmp = g_enum_to_string (GSK_TYPE_BLEND_MODE, mode);
- add_text_row (store, "Blendmode", tmp);
- g_free (tmp);
+ add_text_row (store, "Blendmode", enum_to_nick (GSK_TYPE_BLEND_MODE, mode));
}
break;
@@ -1111,10 +1129,33 @@ populate_render_node_properties (GtkListStore *store,
case GSK_FILL_NODE:
{
GskPath *path = gsk_fill_node_get_path (node);
+ GskFillRule fill_rule = gsk_fill_node_get_fill_rule (node);
+
+ tmp = gsk_path_to_string (path);
+ add_text_row (store, "Path", tmp);
+ g_free (tmp);
+
+ add_text_row (store, "Fill rule", enum_to_nick (GSK_TYPE_FILL_RULE, fill_rule));
+ }
+ break;
+
+ case GSK_STROKE_NODE:
+ {
+ GskPath *path = gsk_stroke_node_get_path (node);
+ const GskStroke *stroke = gsk_stroke_node_get_stroke (node);
+ GskLineCap line_cap = gsk_stroke_get_line_cap (stroke);
+ GskLineJoin line_join = gsk_stroke_get_line_join (stroke);
tmp = gsk_path_to_string (path);
add_text_row (store, "Path", tmp);
g_free (tmp);
+
+ tmp = g_strdup_printf ("%.2f", gsk_stroke_get_line_width (stroke));
+ add_text_row (store, "Line width", tmp);
+ g_free (tmp);
+
+ add_text_row (store, "Line cap", enum_to_nick (GSK_TYPE_LINE_CAP, line_cap));
+ add_text_row (store, "Line join", enum_to_nick (GSK_TYPE_LINE_JOIN, line_join));
}
break;
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