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[client] ds: refactor common EGL swap with damage logic

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This commit creates a new utility library, eglutil.h, which contains code
to detect and use EGL_KHR_swap_buffers_with_damage or its EXT equivalent.

This logic used to be duplicated between the X11 and Wayland display servers,
which is not ideal.
This commit is contained in:
Quantum
2021-07-19 04:01:19 -04:00
committed by Geoffrey McRae
parent a8d4668c4d
commit 0cbc529640
6 changed files with 129 additions and 77 deletions
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38
client/displayservers/X11/x11.c
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@@ -38,6 +38,7 @@
#ifdef ENABLE_EGL
#include <EGL/eglext.h>
#include "egl_dynprocs.h"
#include "eglutil.h"
#endif
#include "app.h"
@@ -943,40 +944,11 @@ static EGLNativeWindowType x11GetEGLNativeWindow(void)
static void x11EGLSwapBuffers(EGLDisplay display, EGLSurface surface,
const struct Rect * damage, int count)
{
static bool detectDone = false;
static eglSwapBuffersWithDamageKHR_t swapWithDamage = NULL;
static struct SwapWithDamageData data = {0};
if (!data.init)
swapWithDamageInit(&data, display);
if (!detectDone)
{
const char *exts = eglQueryString(display, EGL_EXTENSIONS);
DEBUG_INFO("%s", exts);
if (util_hasGLExt(exts, "EGL_KHR_swap_buffers_with_damage"))
swapWithDamage = g_egl_dynProcs.eglSwapBuffersWithDamageKHR;
else if (util_hasGLExt(exts, "EGL_EXT_swap_buffers_with_damage"))
swapWithDamage = g_egl_dynProcs.eglSwapBuffersWithDamageEXT;
if (swapWithDamage)
DEBUG_INFO("Using eglSwapBuffersWithDamage");
detectDone = true;
}
if (swapWithDamage && count)
{
EGLint rects[count*4];
EGLint *p = rects;
for(int i = 0; i < count; ++i, p += 4)
{
p[0] = damage[i].x;
p[1] = damage[i].y;
p[2] = damage[i].w;
p[3] = damage[i].h;
}
swapWithDamage(display, surface, rects, count);
}
else
eglSwapBuffers(display, surface);
swapWithDamage(&data, display, surface, damage, count);
}
#endif