[gtk+] gsk: Add GSK_RENDERING_MODE=full-redraw
- From: Benjamin Otte <otte src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk+] gsk: Add GSK_RENDERING_MODE=full-redraw
- Date: Mon, 26 Dec 2016 23:50:40 +0000 (UTC)
commit 68b39a47278bd9c2fde28c0787a3fd45769b8687
Author: Benjamin Otte <otte redhat com>
Date: Tue Dec 27 00:33:34 2016 +0100
gsk: Add GSK_RENDERING_MODE=full-redraw
Forces a full redraw every frame.
This is done generically, so it's supported on every renderer.
For widget-factory first page (with the spinner spinning and progressbar
pulsing), I get these numbers per frame:
action clipped full redraw
snapshot 0ms 7-10ms
cairo rendering 0ms 10-15ms
Vulkan rendering 3-5ms 18-20ms
Vulkan expected * 0ms 1-2ms
GL rendering unsupported 55-62ms
* expected means disabling rendering of unsupported render nodes,
instead of doing fallback drawing. So it overestimates the performance,
because borders and box-shadows are disabled.
gsk/gskdebug.c | 1 +
gsk/gskdebugprivate.h | 5 +++--
gsk/gskrenderer.c | 19 ++++++++++++++++++-
3 files changed, 22 insertions(+), 3 deletions(-)
---
diff --git a/gsk/gskdebug.c b/gsk/gskdebug.c
index 3ccb5e0..94d40b7 100644
--- a/gsk/gskdebug.c
+++ b/gsk/gskdebug.c
@@ -18,6 +18,7 @@ static const GDebugKey gsk_rendering_keys[] = {
{ "geometry", GSK_RENDERING_MODE_GEOMETRY },
{ "shaders", GSK_RENDERING_MODE_SHADERS },
{ "sync", GSK_RENDERING_MODE_SYNC },
+ { "full-redraw", GSK_RENDERING_MODE_FULL_REDRAW},
{ "staging-image", GSK_RENDERING_MODE_STAGING_IMAGE },
{ "staging-buffer", GSK_RENDERING_MODE_STAGING_BUFFER }
};
diff --git a/gsk/gskdebugprivate.h b/gsk/gskdebugprivate.h
index 26b24f7..5a3f58d 100644
--- a/gsk/gskdebugprivate.h
+++ b/gsk/gskdebugprivate.h
@@ -21,8 +21,9 @@ typedef enum {
GSK_RENDERING_MODE_GEOMETRY = 1 << 0,
GSK_RENDERING_MODE_SHADERS = 1 << 1,
GSK_RENDERING_MODE_SYNC = 1 << 2,
- GSK_RENDERING_MODE_STAGING_IMAGE = 1 << 3,
- GSK_RENDERING_MODE_STAGING_BUFFER = 1 << 4
+ GSK_RENDERING_MODE_FULL_REDRAW = 1 << 3,
+ GSK_RENDERING_MODE_STAGING_IMAGE = 1 << 4,
+ GSK_RENDERING_MODE_STAGING_BUFFER = 1 << 5
} GskRenderingMode;
gboolean gsk_check_debug_flags (GskDebugFlags flags);
diff --git a/gsk/gskrenderer.c b/gsk/gskrenderer.c
index 623e395..bba0153 100644
--- a/gsk/gskrenderer.c
+++ b/gsk/gskrenderer.c
@@ -916,7 +916,24 @@ gsk_renderer_begin_draw_frame (GskRenderer *renderer,
g_return_val_if_fail (region != NULL, NULL);
g_return_val_if_fail (priv->drawing_context == NULL, NULL);
- priv->drawing_context = GSK_RENDERER_GET_CLASS (renderer)->begin_draw_frame (renderer, region);
+ if (GSK_RENDER_MODE_CHECK (FULL_REDRAW))
+ {
+ cairo_region_t *full_window;
+
+ full_window = cairo_region_create_rectangle (&(GdkRectangle) {
+ 0, 0,
+ gdk_window_get_width (priv->window),
+ gdk_window_get_height (priv->window)
+ });
+
+ priv->drawing_context = GSK_RENDERER_GET_CLASS (renderer)->begin_draw_frame (renderer, full_window);
+
+ cairo_region_destroy (full_window);
+ }
+ else
+ {
+ priv->drawing_context = GSK_RENDERER_GET_CLASS (renderer)->begin_draw_frame (renderer, region);
+ }
return priv->drawing_context;
}
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