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Use pixman regions to reduce repainting

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For now, we just use glScissor and clip to the extent of the damage region,
but we can do even better by clipping the repaint to the region rectangles.
This commit is contained in:
Kristian Høgsberg 2011-02-13 13:00:51 -05:00
parent 9c7a8cc663
commit 31bd6c7ab1
4 changed files with 82 additions and 14 deletions
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11
compositor/compositor.h
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@ -22,6 +22,7 @@
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <libudev.h>
#include <pixman.h>
#include "wayland-server.h"
#include "wayland-util.h"
@ -47,6 +48,7 @@ struct wlsc_output {
struct wlsc_surface *background;
struct wlsc_matrix matrix;
int32_t x, y, width, height;
pixman_region32_t previous_damage_region;
};
enum wlsc_pointer_type {
@ -109,6 +111,7 @@ struct wlsc_compositor {
int repaint_needed;
int repaint_on_timeout;
struct timespec previous_swap;
pixman_region32_t damage_region;
struct wlsc_switcher *switcher;
uint32_t focus;
@ -181,6 +184,14 @@ wlsc_compositor_finish_frame(struct wlsc_compositor *compositor, int msecs);
void
wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor);
void
wlsc_surface_damage(struct wlsc_surface *surface);
void
wlsc_surface_damage_rectangle(struct wlsc_surface *surface,
int32_t x, int32_t y,
int32_t width, int32_t height);
void
wlsc_input_device_set_pointer_image(struct wlsc_input_device *device,
enum wlsc_pointer_type type);