Commit 99c46f26 authored by Alexander Larsson's avatar Alexander Larsson Committed by Benjamin Otte

broadway: Add basic GdkCairoContext implementation

parent 9421cb8b
......@@ -21,16 +21,123 @@
#include "gdkconfig.h"
#include "gdkcairocontext-broadway.h"
#include "gdktextureprivate.h"
#include "gdkprivate-broadway.h"
G_DEFINE_TYPE (GdkBroadwayCairoContext, gdk_broadway_cairo_context, GDK_TYPE_CAIRO_CONTEXT)
static void
gdk_broadway_cairo_context_dispose (GObject *object)
{
G_OBJECT_CLASS (gdk_broadway_cairo_context_parent_class)->dispose (object);
}
static void
gdk_broadway_cairo_context_begin_frame (GdkDrawContext *draw_context,
cairo_region_t *region)
{
GdkBroadwayCairoContext *self = GDK_BROADWAY_CAIRO_CONTEXT (draw_context);
GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (self));
cairo_t *cr;
cairo_region_t *repaint_region;
int width, height, scale;
width = gdk_surface_get_width (surface);
height = gdk_surface_get_height (surface);
scale = gdk_surface_get_scale_factor (surface);
self->paint_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width * scale, height * scale);
cairo_surface_set_device_scale (self->paint_surface, scale, scale);
repaint_region = cairo_region_create_rectangle (&(cairo_rectangle_int_t) { 0, 0, width, height });
cairo_region_union (region, repaint_region);
cairo_region_destroy (repaint_region);
/* clear the repaint area */
cr = cairo_create (self->paint_surface);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_fill (cr);
cairo_destroy (cr);
}
static void
add_uint32 (GArray *nodes, guint32 v)
{
g_array_append_val (nodes, v);
}
static void
add_float (GArray *nodes, float f)
{
gint32 i = (gint32) (f * 256.0f);
guint u = (guint32) i;
g_array_append_val (nodes, u);
}
static void
gdk_broadway_cairo_context_end_frame (GdkDrawContext *draw_context,
cairo_region_t *painted)
{
GdkBroadwayCairoContext *self = GDK_BROADWAY_CAIRO_CONTEXT (draw_context);
GdkDisplay *display = gdk_draw_context_get_display (draw_context);
GdkSurface *surface = gdk_draw_context_get_surface (draw_context);
GdkTexture *texture;
GPtrArray *node_textures;
GArray *nodes;
guint32 texture_id;
nodes = g_array_new (FALSE, FALSE, sizeof(guint32));
node_textures = g_ptr_array_new_with_free_func (g_object_unref);
texture = gdk_texture_new_for_surface ((cairo_surface_t *)self->paint_surface);
g_ptr_array_add (node_textures, g_object_ref (texture)); /* Transfers ownership to node_textures */
texture_id = gdk_broadway_display_ensure_texture (display, texture);
add_uint32 (nodes, BROADWAY_NODE_TEXTURE);
add_float (nodes, 0);
add_float (nodes, 0);
add_float (nodes, cairo_image_surface_get_width (self->paint_surface));
add_float (nodes, cairo_image_surface_get_height (self->paint_surface));
add_uint32 (nodes, texture_id);
gdk_broadway_surface_set_nodes (surface, nodes, node_textures);
g_array_unref (nodes);
g_ptr_array_unref (node_textures);
cairo_surface_destroy (self->paint_surface);
self->paint_surface = NULL;
}
static void
gdk_broadway_cairo_context_surface_resized (GdkDrawContext *draw_context)
{
}
static cairo_t *
gdk_broadway_cairo_context_cairo_create (GdkCairoContext *context)
{
GdkBroadwayCairoContext *self = GDK_BROADWAY_CAIRO_CONTEXT (context);
return cairo_create (self->paint_surface);
}
static void
gdk_broadway_cairo_context_class_init (GdkBroadwayCairoContextClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GdkDrawContextClass *draw_context_class = GDK_DRAW_CONTEXT_CLASS (klass);
GdkCairoContextClass *cairo_context_class = GDK_CAIRO_CONTEXT_CLASS (klass);
gobject_class->dispose = gdk_broadway_cairo_context_dispose;
draw_context_class->begin_frame = gdk_broadway_cairo_context_begin_frame;
draw_context_class->end_frame = gdk_broadway_cairo_context_end_frame;
draw_context_class->surface_resized = gdk_broadway_cairo_context_surface_resized;
cairo_context_class->cairo_create = gdk_broadway_cairo_context_cairo_create;
}
static void
gdk_broadway_cairo_context_init (GdkBroadwayCairoContext *self)
{
}
......@@ -38,6 +38,8 @@ typedef struct _GdkBroadwayCairoContextClass GdkBroadwayCairoContextClass;
struct _GdkBroadwayCairoContext
{
GdkCairoContext parent_instance;
cairo_surface_t *paint_surface;
};
struct _GdkBroadwayCairoContextClass
......
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