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[client] egl: use eglSwapBuffersWithDamageKHR for cursor-only updates

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Instead of damaging the entire surface when rendering a cursor move,
we can use the EGL_KHR_swap_buffers_with_damage extension to only
damage the part of the window covered by the cursor. This should
reduce the cursor movement latency on Wayland.
This commit is contained in:
Quantum
2021-05-11 16:49:39 -04:00
committed by Geoffrey McRae
parent f9a9953071
commit e70cfd84fb
14 changed files with 140 additions and 15 deletions
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3
client/include/interface/displayserver.h
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@@ -22,6 +22,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <stdbool.h>
#include <EGL/egl.h>
#include "common/types.h"
typedef enum LG_ClipboardData
{
@@ -115,7 +116,7 @@ struct LG_DisplayServerOps
/* EGL support */
EGLDisplay (*getEGLDisplay)(void);
EGLNativeWindowType (*getEGLNativeWindow)(void);
void (*eglSwapBuffers)(EGLDisplay display, EGLSurface surface);
void (*eglSwapBuffers)(EGLDisplay display, EGLSurface surface, const struct Rect * damage, int count);
#endif
#ifdef ENABLE_OPENGL