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Unified Diff: webkit/port/platform/graphics/skia/GdkSkia.cc

Issue 9757: Cache the GdkSkia object in PlatformContextSkia so that we aren't creating (Closed)
Patch Set: Moving files against Created 12 years, 1 month ago
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Index: webkit/port/platform/graphics/skia/GdkSkia.cc
diff --git a/webkit/port/platform/graphics/skia/GdkSkia.cc b/webkit/port/platform/graphics/skia/GdkSkia.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4774aafb7899b688535b323d4d3ea8f92da92876
--- /dev/null
+++ b/webkit/port/platform/graphics/skia/GdkSkia.cc
@@ -0,0 +1,508 @@
+/* Based on GTK code by the Chromium Authors. The original header for that code
+ * continues below */
+
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include <stdio.h>
+
+#include <gdk/gdk.h>
+#include <SkCanvas.h>
+#include <SkBitmap.h>
+#include <SkDevice.h>
+
+#include "GdkSkia.h"
+
+static GdkGC *gdk_skia_create_gc (GdkDrawable *drawable,
+ GdkGCValues *values,
+ GdkGCValuesMask mask);
+static void gdk_skia_draw_rectangle (GdkDrawable *drawable,
+ GdkGC *gc,
+ gboolean filled,
+ gint x,
+ gint y,
+ gint width,
+ gint height);
+static void gdk_skia_draw_arc (GdkDrawable *drawable,
+ GdkGC *gc,
+ gboolean filled,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ gint angle1,
+ gint angle2);
+static void gdk_skia_draw_polygon (GdkDrawable *drawable,
+ GdkGC *gc,
+ gboolean filled,
+ GdkPoint *points,
+ gint npoints);
+static void gdk_skia_draw_text (GdkDrawable *drawable,
+ GdkFont *font,
+ GdkGC *gc,
+ gint x,
+ gint y,
+ const gchar *text,
+ gint text_length);
+static void gdk_skia_draw_text_wc (GdkDrawable *drawable,
+ GdkFont *font,
+ GdkGC *gc,
+ gint x,
+ gint y,
+ const GdkWChar *text,
+ gint text_length);
+static void gdk_skia_draw_drawable (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPixmap *src,
+ gint xsrc,
+ gint ysrc,
+ gint xdest,
+ gint ydest,
+ gint width,
+ gint height);
+static void gdk_skia_draw_points (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPoint *points,
+ gint npoints);
+static void gdk_skia_draw_segments (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkSegment *segs,
+ gint nsegs);
+static void gdk_skia_draw_lines (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPoint *points,
+ gint npoints);
+
+static void gdk_skia_draw_glyphs (GdkDrawable *drawable,
+ GdkGC *gc,
+ PangoFont *font,
+ gint x,
+ gint y,
+ PangoGlyphString *glyphs);
+static void gdk_skia_draw_glyphs_transformed (GdkDrawable *drawable,
+ GdkGC *gc,
+ PangoMatrix *matrix,
+ PangoFont *font,
+ gint x,
+ gint y,
+ PangoGlyphString *glyphs);
+
+static void gdk_skia_draw_image (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkImage *image,
+ gint xsrc,
+ gint ysrc,
+ gint xdest,
+ gint ydest,
+ gint width,
+ gint height);
+static void gdk_skia_draw_pixbuf (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPixbuf *pixbuf,
+ gint src_x,
+ gint src_y,
+ gint dest_x,
+ gint dest_y,
+ gint width,
+ gint height,
+ GdkRgbDither dither,
+ gint x_dither,
+ gint y_dither);
+static void gdk_skia_draw_trapezoids (GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkTrapezoid *trapezoids,
+ gint n_trapezoids);
+
+static void gdk_skia_real_get_size (GdkDrawable *drawable,
+ gint *width,
+ gint *height);
+
+static GdkImage* gdk_skia_copy_to_image (GdkDrawable *drawable,
+ GdkImage *image,
+ gint src_x,
+ gint src_y,
+ gint dest_x,
+ gint dest_y,
+ gint width,
+ gint height);
+
+static cairo_surface_t *gdk_skia_ref_cairo_surface (GdkDrawable *drawable);
+
+static GdkVisual* gdk_skia_real_get_visual (GdkDrawable *drawable);
+static gint gdk_skia_real_get_depth (GdkDrawable *drawable);
+static void gdk_skia_real_set_colormap (GdkDrawable *drawable,
+ GdkColormap *cmap);
+static GdkColormap* gdk_skia_real_get_colormap (GdkDrawable *drawable);
+static GdkScreen* gdk_skia_real_get_screen (GdkDrawable *drawable);
+static void gdk_skia_init (GdkSkiaObject *skia);
+static void gdk_skia_class_init (GdkSkiaObjectClass *klass);
+static void gdk_skia_finalize (GObject *object);
+
+static gpointer parent_class = NULL;
+
+// -----------------------------------------------------------------------------
+// Usually GDK code is C code. However, since we are interfacing to a C++
+// library, we must compile in C++ mode to parse its headers etc. Thankfully,
+// these are the only non-static symbol in the file so we can just wrap them in
+// an extern decl to disable name mangling and everything should be happy.
+// -----------------------------------------------------------------------------
+extern "C" {
+GType
+gdk_skia_get_type (void)
+{
+ static GType object_type = 0;
+
+ if (!object_type)
+ object_type = g_type_register_static_simple (GDK_TYPE_DRAWABLE,
+ "GdkSkia",
+ sizeof (GdkSkiaObjectClass),
+ (GClassInitFunc) gdk_skia_class_init,
+ sizeof (GdkSkiaObject),
+ (GInstanceInitFunc) gdk_skia_init,
+ (GTypeFlags) 0);
+
+ return object_type;
+}
+
+GdkSkia*
+gdk_skia_new(SkCanvas *canvas)
+{
+ GdkSkia *skia = GDK_SKIA(g_object_new (GDK_TYPE_SKIA, NULL));
+ reinterpret_cast<GdkSkiaObject*>(skia)->canvas = canvas;
+ return skia;
+}
+
+} // extern "C"
+
+static void
+gdk_skia_init (GdkSkiaObject *skia)
+{
+ /* 0 initialization is fine for us */
+}
+
+static void
+gdk_skia_class_init (GdkSkiaObjectClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ object_class->finalize = gdk_skia_finalize;
+
+ drawable_class->create_gc = gdk_skia_create_gc;
+ drawable_class->draw_rectangle = gdk_skia_draw_rectangle;
+ drawable_class->draw_arc = gdk_skia_draw_arc;
+ drawable_class->draw_polygon = gdk_skia_draw_polygon;
+ drawable_class->draw_text = gdk_skia_draw_text;
+ drawable_class->draw_text_wc = gdk_skia_draw_text_wc;
+ drawable_class->draw_drawable = gdk_skia_draw_drawable;
+ drawable_class->draw_points = gdk_skia_draw_points;
+ drawable_class->draw_segments = gdk_skia_draw_segments;
+ drawable_class->draw_lines = gdk_skia_draw_lines;
+ drawable_class->draw_glyphs = gdk_skia_draw_glyphs;
+ drawable_class->draw_glyphs_transformed = gdk_skia_draw_glyphs_transformed;
+ drawable_class->draw_image = gdk_skia_draw_image;
+ drawable_class->draw_pixbuf = gdk_skia_draw_pixbuf;
+ drawable_class->draw_trapezoids = gdk_skia_draw_trapezoids;
+ drawable_class->get_depth = gdk_skia_real_get_depth;
+ drawable_class->get_screen = gdk_skia_real_get_screen;
+ drawable_class->get_size = gdk_skia_real_get_size;
+ drawable_class->set_colormap = gdk_skia_real_set_colormap;
+ drawable_class->get_colormap = gdk_skia_real_get_colormap;
+ drawable_class->get_visual = gdk_skia_real_get_visual;
+ drawable_class->_copy_to_image = gdk_skia_copy_to_image;
+ drawable_class->ref_cairo_surface = gdk_skia_ref_cairo_surface;
+}
+
+static void
+gdk_skia_finalize (GObject *object)
+{
+ GdkSkiaObject *const skia = (GdkSkiaObject *) object;
+ if (skia->surface)
+ cairo_surface_destroy(skia->surface);
+ G_OBJECT_CLASS (parent_class)->finalize(object);
+}
+
+#define NOTIMPLEMENTED fprintf(stderr, "GDK Skia not implemented: %s\n", __PRETTY_FUNCTION__)
+
+static GdkGC *
+gdk_skia_create_gc(GdkDrawable *drawable,
+ GdkGCValues *values,
+ GdkGCValuesMask mask) {
+ NOTIMPLEMENTED;
+ return NULL;
+}
+
+static void
+gc_set_paint(GdkGC *gc, SkPaint *paint) {
+ GdkGCValues values;
+ gdk_gc_get_values(gc, &values);
+
+ paint->setARGB(255,
+ values.foreground.pixel >> 16,
+ values.foreground.pixel >> 8,
+ values.foreground.pixel);
+ paint->setStrokeWidth(values.line_width);
+}
+
+static void
+gdk_skia_draw_rectangle(GdkDrawable *drawable,
+ GdkGC *gc,
+ gboolean filled,
+ gint x,
+ gint y,
+ gint width,
+ gint height) {
+ GdkSkiaObject *skia = (GdkSkiaObject *) drawable;
+ SkPaint paint;
+ gc_set_paint(gc, &paint);
+
+ if (filled) {
+ paint.setStyle(SkPaint::kFill_Style);
+ } else {
+ paint.setStyle(SkPaint::kStroke_Style);
+ }
+
+ SkRect rect;
+ rect.set(x, y, x + width, y + height);
+
+ skia->canvas->drawRect(rect, paint);
+}
+
+static void
+gdk_skia_draw_arc(GdkDrawable *drawable,
+ GdkGC *gc,
+ gboolean filled,
+ gint x,
+ gint y,
+ gint width,
+ gint height,
+ gint angle1,
+ gint angle2) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_polygon(GdkDrawable *drawable,
+ GdkGC *gc,
+ gboolean filled,
+ GdkPoint *points,
+ gint npoints) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_text(GdkDrawable *drawable,
+ GdkFont *font,
+ GdkGC *gc,
+ gint x,
+ gint y,
+ const gchar *text,
+ gint text_length) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_text_wc(GdkDrawable *drawable,
+ GdkFont *font,
+ GdkGC *gc,
+ gint x,
+ gint y,
+ const GdkWChar *text,
+ gint text_length) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_drawable(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPixmap *src,
+ gint xsrc,
+ gint ysrc,
+ gint xdest,
+ gint ydest,
+ gint width,
+ gint height) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_points(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPoint *points,
+ gint npoints) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_segments(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkSegment *segs,
+ gint nsegs) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_lines(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPoint *points,
+ gint npoints) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_glyphs(GdkDrawable *drawable,
+ GdkGC *gc,
+ PangoFont *font,
+ gint x,
+ gint y,
+ PangoGlyphString *glyphs) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_glyphs_transformed(GdkDrawable *drawable,
+ GdkGC *gc,
+ PangoMatrix *matrix,
+ PangoFont *font,
+ gint x,
+ gint y,
+ PangoGlyphString *glyphs) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_image(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkImage *image,
+ gint xsrc,
+ gint ysrc,
+ gint xdest,
+ gint ydest,
+ gint width,
+ gint height) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_pixbuf(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkPixbuf *pixbuf,
+ gint src_x,
+ gint src_y,
+ gint dest_x,
+ gint dest_y,
+ gint width,
+ gint height,
+ GdkRgbDither dither,
+ gint x_dither,
+ gint y_dither) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_draw_trapezoids(GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkTrapezoid *trapezoids,
+ gint n_trapezoids) {
+ NOTIMPLEMENTED;
+}
+
+static void
+gdk_skia_real_get_size(GdkDrawable *drawable,
+ gint *width,
+ gint *height) {
+ NOTIMPLEMENTED;
+}
+
+static GdkImage*
+gdk_skia_copy_to_image(GdkDrawable *drawable,
+ GdkImage *image,
+ gint src_x,
+ gint src_y,
+ gint dest_x,
+ gint dest_y,
+ gint width,
+ gint height) {
+ NOTIMPLEMENTED;
+ return NULL;
+}
+
+static cairo_surface_t *
+gdk_skia_ref_cairo_surface(GdkDrawable *drawable) {
+ GdkSkiaObject *const skia = (GdkSkiaObject *) drawable;
+
+ if (!skia->surface) {
+ SkDevice *const dev = skia->canvas->getDevice();
+ const SkBitmap *const bm = &dev->accessBitmap(true);
+
+ skia->surface = cairo_image_surface_create_for_data
+ ((unsigned char *) bm->getPixels(),
+ CAIRO_FORMAT_ARGB32, dev->width(), dev->height(), bm->rowBytes());
+ }
+
+ return cairo_surface_reference(skia->surface);
+}
+
+static GdkVisual*
+gdk_skia_real_get_visual(GdkDrawable *drawable) {
+ NOTIMPLEMENTED;
+ return NULL;
+}
+
+static gint
+gdk_skia_real_get_depth(GdkDrawable *drawable) {
+ GdkSkiaObject *skia = (GdkSkiaObject *) drawable;
+ const SkBitmap::Config config = skia->canvas->getDevice()->config();
+
+ switch (config) {
+ case SkBitmap::kARGB_8888_Config:
+ return 24;
+ default:
+ // NOTREACHED
+ *reinterpret_cast<char*>(NULL) = 0;
+ return 0;
+ }
+}
+
+static void
+gdk_skia_real_set_colormap(GdkDrawable *drawable,
+ GdkColormap *cmap) {
+ NOTIMPLEMENTED;
+}
+
+static GdkColormap*
+gdk_skia_real_get_colormap(GdkDrawable *drawable) {
+ NOTIMPLEMENTED;
+ return NULL;
+}
+
+static GdkScreen*
+gdk_skia_real_get_screen(GdkDrawable *drawable) {
+ NOTIMPLEMENTED;
+ return NULL;
+}
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