Author: Carlos Lopez <genet...@gmail.com>
Date: Mon Aug 20 20:14:03 2012 +0200
Stretch layer: add support for Cairo render.
---
synfig-core/src/modules/lyr_std/stretch.cpp | 31 +++++++++++++++++++++++++++
synfig-core/src/modules/lyr_std/stretch.h | 1 +
2 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/synfig-core/src/modules/lyr_std/stretch.cpp
b/synfig-core/src/modules/lyr_std/stretch.cpp
index ea3e138..bb5b237 100644
--- a/synfig-core/src/modules/lyr_std/stretch.cpp
+++ b/synfig-core/src/modules/lyr_std/stretch.cpp
@@ -182,6 +182,37 @@ Layer_Stretch::accelerated_render(Context context,Surface
*surface,int quality,
return context.accelerated_render(surface,quality,desc,cb);
}
+//////
+bool
+Layer_Stretch::accelerated_cairorender(Context context,cairo_surface_t
*surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ if (amount[0] == 0 || amount[1] == 0)
+ {
+ cairo_t* cr=cairo_create(surface);
+ cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
+ cairo_fill(cr);
+ return true;
+ }
+
+ RendDesc desc(renddesc);
+ desc.clear_flags();
+ // Adjust the top_left and bottom_right points
+ // for our zoom amount
+ Point npos;
+ npos[0]=(desc.get_tl()[0]-center[0])/amount[0]+center[0];
+ npos[1]=(desc.get_tl()[1]-center[1])/amount[1]+center[1];
+ desc.set_tl(npos);
+ npos[0]=(desc.get_br()[0]-center[0])/amount[0]+center[0];
+ npos[1]=(desc.get_br()[1]-center[1])/amount[1]+center[1];
+ desc.set_br(npos);
+
+ // Render the scene
+ return context.accelerated_cairorender(surface,quality,desc,cb);
+}
+
+/////
+
+
Rect
Layer_Stretch::get_full_bounding_rect(Context context)const
{
diff --git a/synfig-core/src/modules/lyr_std/stretch.h
b/synfig-core/src/modules/lyr_std/stretch.h
index 10054c4..03904c6 100644
--- a/synfig-core/src/modules/lyr_std/stretch.h
+++ b/synfig-core/src/modules/lyr_std/stretch.h
@@ -61,6 +61,7 @@ public:
virtual Color get_color(Context context, const Point &pos)const;
virtual bool accelerated_render(Context context,Surface *surface,int
quality, const RendDesc &renddesc, ProgressCallback *cb)const;
+ virtual bool accelerated_cairorender(Context context,cairo_surface_t
*surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;
synfig::Layer::Handle hit_check(synfig::Context context, const
synfig::Point &point)const;
virtual Vocab get_param_vocab()const;
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