Roderick Colenbrander : winex11: Support WGL_EXT_swap_control_tear.
Alexandre Julliard
julliard at winehq.org
Wed Sep 4 15:08:32 CDT 2013
Module: wine
Branch: master
Commit: dee3418d3ad9d1d419f2e136ffdcd635ef55b2c8
URL: http://source.winehq.org/git/wine.git/?a=commit;h=dee3418d3ad9d1d419f2e136ffdcd635ef55b2c8
Author: Roderick Colenbrander <thunderbird2k at gmail.com>
Date: Sun Sep 1 21:58:54 2013 -0700
winex11: Support WGL_EXT_swap_control_tear.
---
dlls/winex11.drv/opengl.c | 12 +++++++++++-
1 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/dlls/winex11.drv/opengl.c b/dlls/winex11.drv/opengl.c
index 1758de1..5ec33c8 100644
--- a/dlls/winex11.drv/opengl.c
+++ b/dlls/winex11.drv/opengl.c
@@ -281,6 +281,8 @@ static int use_render_texture_emulation = 1;
/* Selects the preferred GLX swap control method for use by wglSwapIntervalEXT */
static enum glx_swap_control_method swap_control_method = GLX_SWAP_CONTROL_NONE;
+/* Set when GLX_EXT_swap_control_tear is supported, requires GLX_SWAP_CONTROL_EXT */
+static BOOL has_swap_control_tear = FALSE;
static CRITICAL_SECTION context_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
@@ -2937,7 +2939,10 @@ static BOOL X11DRV_wglSwapIntervalEXT(int interval)
TRACE("(%d)\n", interval);
- if (interval < 0)
+ /* Without WGL/GLX_EXT_swap_control_tear a negative interval
+ * is invalid.
+ */
+ if (interval < 0 && !has_swap_control_tear)
{
SetLastError(ERROR_INVALID_DATA);
return FALSE;
@@ -3135,6 +3140,11 @@ static void X11DRV_WineGL_LoadExtensions(void)
if (has_extension( WineGLInfo.glxExtensions, "GLX_EXT_swap_control"))
{
swap_control_method = GLX_SWAP_CONTROL_EXT;
+ if (has_extension( WineGLInfo.glxExtensions, "GLX_EXT_swap_control_tear"))
+ {
+ register_extension("WGL_EXT_swap_control_tear");
+ has_swap_control_tear = TRUE;
+ }
}
else if (has_extension( WineGLInfo.glxExtensions, "GLX_SGI_swap_control"))
{
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