reset

1 files changed, 0 insertions, 204 deletions

diff --git a/src/vsync.c b/src/vsync.c
deleted file mode 100644
index 5980155..0000000
--- a/src/vsync.c
+++ /dev/null
@@ -1,204 +0,0 @@
-// SPDX-License-Identifier: MPL-2.0
-// Copyright (c) Yuxuan Shui <[email protected]>
-
-/// Function pointers to init VSync modes.
-
-#include "common.h"
-#include "log.h"
-
-#ifdef CONFIG_OPENGL
-#include "backend/gl/glx.h"
-#include "opengl.h"
-#endif
-
-#ifdef CONFIG_VSYNC_DRM
-#include <drm.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#endif
-
-#include "config.h"
-#include "vsync.h"
-
-#ifdef CONFIG_VSYNC_DRM
-/**
- * Wait for next VSync, DRM method.
- *
- * Stolen from:
- * https://github.com/MythTV/mythtv/blob/master/mythtv/libs/libmythtv/vsync.cpp
- */
-static int vsync_drm_wait(session_t *ps) {
-	int ret = -1;
-	drm_wait_vblank_t vbl;
-
-	vbl.request.type = _DRM_VBLANK_RELATIVE, vbl.request.sequence = 1;
-
-	do {
-		ret = ioctl(ps->drm_fd, DRM_IOCTL_WAIT_VBLANK, &vbl);
-		vbl.request.type &= ~(uint)_DRM_VBLANK_RELATIVE;
-	} while (ret && errno == EINTR);
-
-	if (ret)
-		log_error("VBlank ioctl did not work, unimplemented in this drmver?");
-
-	return ret;
-}
-
-/**
- * Initialize DRM VSync.
- *
- * @return true for success, false otherwise
- */
-static bool vsync_drm_init(session_t *ps) {
-	// Should we always open card0?
-	if (ps->drm_fd < 0 && (ps->drm_fd = open("/dev/dri/card0", O_RDWR)) < 0) {
-		log_error("Failed to open device.");
-		return false;
-	}
-
-	if (vsync_drm_wait(ps))
-		return false;
-
-	return true;
-}
-#endif
-
-#ifdef CONFIG_OPENGL
-/**
- * Initialize OpenGL VSync.
- *
- * Stolen from:
- * http://git.tuxfamily.org/?p=ccm/cairocompmgr.git;a=commitdiff;h=efa4ceb97da501e8630ca7f12c99b1dce853c73e
- * Possible original source: http://www.inb.uni-luebeck.de/~boehme/xvideo_sync.html
- *
- * @return true for success, false otherwise
- */
-static bool vsync_opengl_init(session_t *ps) {
-	if (!ensure_glx_context(ps))
-		return false;
-
-	return glxext.has_GLX_SGI_video_sync;
-}
-
-static bool vsync_opengl_oml_init(session_t *ps) {
-	if (!ensure_glx_context(ps))
-		return false;
-
-	return glxext.has_GLX_OML_sync_control;
-}
-
-static inline bool vsync_opengl_swc_swap_interval(session_t *ps, int interval) {
-	if (glxext.has_GLX_MESA_swap_control)
-		return glXSwapIntervalMESA((uint)interval) == 0;
-	else if (glxext.has_GLX_SGI_swap_control)
-		return glXSwapIntervalSGI(interval) == 0;
-	else if (glxext.has_GLX_EXT_swap_control) {
-		GLXDrawable d = glXGetCurrentDrawable();
-		if (d == None) {
-			// We don't have a context??
-			return false;
-		}
-		glXSwapIntervalEXT(ps->dpy, glXGetCurrentDrawable(), interval);
-		return true;
-	}
-	return false;
-}
-
-static bool vsync_opengl_swc_init(session_t *ps) {
-	if (!bkend_use_glx(ps)) {
-		log_error("OpenGL swap control requires the GLX backend.");
-		return false;
-	}
-
-	if (!vsync_opengl_swc_swap_interval(ps, 1)) {
-		log_error("Failed to load a swap control extension.");
-		return false;
-	}
-
-	return true;
-}
-
-/**
- * Wait for next VSync, OpenGL method.
- */
-static int vsync_opengl_wait(session_t *ps attr_unused) {
-	unsigned vblank_count = 0;
-
-	glXGetVideoSyncSGI(&vblank_count);
-	glXWaitVideoSyncSGI(2, (vblank_count + 1) % 2, &vblank_count);
-	return 0;
-}
-
-/**
- * Wait for next VSync, OpenGL OML method.
- *
- * https://mail.gnome.org/archives/clutter-list/2012-November/msg00031.html
- */
-static int vsync_opengl_oml_wait(session_t *ps) {
-	int64_t ust = 0, msc = 0, sbc = 0;
-
-	glXGetSyncValuesOML(ps->dpy, ps->reg_win, &ust, &msc, &sbc);
-	glXWaitForMscOML(ps->dpy, ps->reg_win, 0, 2, (msc + 1) % 2, &ust, &msc, &sbc);
-	return 0;
-}
-#endif
-
-/**
- * Initialize current VSync method.
- */
-bool vsync_init(session_t *ps) {
-#ifdef CONFIG_OPENGL
-	if (bkend_use_glx(ps)) {
-		// Mesa turns on swap control by default, undo that
-		vsync_opengl_swc_swap_interval(ps, 0);
-	}
-#endif
-#ifdef CONFIG_VSYNC_DRM
-	log_warn("The DRM vsync method is deprecated, please don't enable it.");
-#endif
-
-	if (!ps->o.vsync) {
-		return true;
-	}
-
-#ifdef CONFIG_OPENGL
-	if (bkend_use_glx(ps)) {
-		if (!vsync_opengl_swc_init(ps)) {
-			return false;
-		}
-		ps->vsync_wait = NULL;        // glXSwapBuffers will automatically wait
-		                              // for vsync, we don't need to do anything.
-		return true;
-	}
-#endif
-
-	// Oh no, we are not using glx backend.
-	// Throwing things at wall.
-#ifdef CONFIG_OPENGL
-	if (vsync_opengl_oml_init(ps)) {
-		log_info("Using the opengl-oml vsync method");
-		ps->vsync_wait = vsync_opengl_oml_wait;
-		return true;
-	}
-
-	if (vsync_opengl_init(ps)) {
-		log_info("Using the opengl vsync method");
-		ps->vsync_wait = vsync_opengl_wait;
-		return true;
-	}
-#endif
-
-#ifdef CONFIG_VSYNC_DRM
-	if (vsync_drm_init(ps)) {
-		log_info("Using the drm vsync method");
-		ps->vsync_wait = vsync_drm_wait;
-		return true;
-	}
-#endif
-
-	log_error("No supported vsync method found for this backend");
-	return false;
-}