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winex11: Refactor wglSwapIntervalEXT for use with glXSwapIntervalEXT. 

In preparation for WGL_EXT_swap_control_tear support, transition to using glXSwapIntervalEXT.
This commit is contained in:
Roderick Colenbrander 2013-09-01 21:58:53 -07:00 committed by Alexandre Julliard
parent 0079248f10
commit e95e77a19f
1 changed files with 44 additions and 16 deletions
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60
dlls/winex11.drv/opengl.c
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@ -254,6 +254,13 @@ struct gl_drawable
int swap_interval;
};
enum glx_swap_control_method
{
GLX_SWAP_CONTROL_NONE,
GLX_SWAP_CONTROL_EXT,
GLX_SWAP_CONTROL_SGI
};
/* X context to associate a struct gl_drawable to an hwnd */
static XContext gl_hwnd_context;
/* X context to associate a struct gl_drawable to a pbuffer hdc */
@ -271,7 +278,9 @@ static struct WineGLInfo WineGLInfo = { 0 };
static struct wgl_pixel_format *pixel_formats;
static int nb_pixel_formats, nb_onscreen_formats;
static int use_render_texture_emulation = 1;
static BOOL has_swap_control;
/* Selects the preferred GLX swap control method for use by wglSwapIntervalEXT */
static enum glx_swap_control_method swap_control_method = GLX_SWAP_CONTROL_NONE;
static CRITICAL_SECTION context_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
@ -384,6 +393,7 @@ static Bool (*pglXMakeContextCurrent)( Display *dpy, GLXDrawable draw, GLXDrawab
/* GLX Extensions */
static GLXContext (*pglXCreateContextAttribsARB)(Display *dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
static void* (*pglXGetProcAddressARB)(const GLubyte *);
static void (*pglXSwapIntervalEXT)(Display *dpy, GLXDrawable drawable, int interval);
static int (*pglXSwapIntervalSGI)(int);
/* NV GLX Extension */
@ -636,6 +646,8 @@ static BOOL has_opengl(void)
#define LOAD_FUNCPTR(f) p##f = pglXGetProcAddressARB((const GLubyte *)#f)
/* ARB GLX Extension */
LOAD_FUNCPTR(glXCreateContextAttribsARB);
/* EXT GLX Extension */
LOAD_FUNCPTR(glXSwapIntervalEXT);
/* SGI GLX Extension */
LOAD_FUNCPTR(glXSwapIntervalSGI);
/* NV GLX Extension */
@ -2937,27 +2949,37 @@ static BOOL X11DRV_wglSwapIntervalEXT(int interval)
return FALSE;
}
if (!has_swap_control && interval == 0)
switch (swap_control_method)
{
case GLX_SWAP_CONTROL_EXT:
X11DRV_expect_error(gdi_display, GLXErrorHandler, NULL);
pglXSwapIntervalEXT(gdi_display, gl->drawable, interval);
XSync(gdi_display, False);
ret = !X11DRV_check_error();
break;
case GLX_SWAP_CONTROL_SGI:
/* wglSwapIntervalEXT considers an interval value of zero to mean that
* vsync should be disabled, but glXSwapIntervalSGI considers such a
* value to be an error. Just silently ignore the request for now. */
WARN("Request to disable vertical sync is not handled\n");
gl->swap_interval = 0;
}
else
{
if (pglXSwapIntervalSGI)
* value to be an error. Just silently ignore the request for now.
*/
if (!interval)
WARN("Request to disable vertical sync is not handled\n");
else
ret = !pglXSwapIntervalSGI(interval);
else
WARN("GLX_SGI_swap_control extension is not available\n");
break;
if (ret)
gl->swap_interval = interval;
else
SetLastError(ERROR_DC_NOT_FOUND);
case GLX_SWAP_CONTROL_NONE:
/* Unlikely to happen on modern GLX implementations */
WARN("Request to adjust swap interval is not handled\n");
break;
}
if (ret)
gl->swap_interval = interval;
else
SetLastError(ERROR_DC_NOT_FOUND);
release_gl_drawable(gl);
return ret;
@ -3111,7 +3133,13 @@ static void X11DRV_WineGL_LoadExtensions(void)
register_extension("WGL_EXT_pixel_format_packed_float");
if (has_extension( WineGLInfo.glxExtensions, "GLX_EXT_swap_control"))
has_swap_control = TRUE;
{
swap_control_method = GLX_SWAP_CONTROL_EXT;
}
else if (has_extension( WineGLInfo.glxExtensions, "GLX_SGI_swap_control"))
{
swap_control_method = GLX_SWAP_CONTROL_SGI;
}
/* The OpenGL extension GL_NV_vertex_array_range adds wgl/glX functions which aren't exported as 'real' wgl/glX extensions. */
if (has_extension(WineGLInfo.glExtensions, "GL_NV_vertex_array_range"))