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Fix buffer swap prototypes

Browse source 
BUG: 309647
REVIEW: 107302
This commit is contained in:
Ralf Jung 2012-11-13 22:19:01 +01:00
parent 2b0453d82c
commit 96bc979ca8
4 changed files with 42 additions and 21 deletions
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26
glxbackend.cpp
View file

@ -41,6 +41,7 @@ namespace KWin
GlxBackend::GlxBackend()
: OpenGLBackend()
, glxbuffer(None)
, haveSwapInterval(false)
{
init();
}
@ -91,8 +92,9 @@ void GlxBackend::init()
glPlatform->printResults();
initGL(GlxPlatformInterface);
// Check whether certain features are supported
haveSwapInterval = glXSwapIntervalMESA || glXSwapIntervalEXT || glXSwapIntervalSGI;
if (options->isGlVSync()) {
if (glXGetVideoSync && glXSwapInterval && glXIsDirect(display(), ctxbuffer)) {
if (glXGetVideoSync && haveSwapInterval && glXIsDirect(display(), ctxbuffer)) {
unsigned int sync;
if (glXGetVideoSync(&sync) == 0) {
if (glXWaitVideoSync(1, 0, &sync) == 0) {
@ -102,15 +104,15 @@ void GlxBackend::init()
// However mesa/dri will return a range error (6) because deactivating the
// swapinterval (as of today) seems completely unsupported
setHasWaitSync(true);
glXSwapInterval(0);
setSwapInterval(0);
}
else
qWarning() << "NO VSYNC! glXWaitVideoSync(1,0,&uint) isn't 0 but" << glXWaitVideoSync(1, 0, &sync);
} else
qWarning() << "NO VSYNC! glXGetVideoSync(&uint) isn't 0 but" << glXGetVideoSync(&sync);
} else
qWarning() << "NO VSYNC! glXGetVideoSync, glXSwapInterval, glXIsDirect" <<
bool(glXGetVideoSync) << bool(glXSwapInterval) << glXIsDirect(display(), ctxbuffer);
qWarning() << "NO VSYNC! glXGetVideoSync, haveSwapInterval, glXIsDirect" <<
bool(glXGetVideoSync) << haveSwapInterval << glXIsDirect(display(), ctxbuffer);
}
if (glPlatform->isVirtualBox()) {
// VirtualBox does not support glxQueryDrawable
@ -411,6 +413,16 @@ bool GlxBackend::initDrawableConfigs()
return true;
}
void GlxBackend::setSwapInterval(int interval)
{
if (glXSwapIntervalEXT)
glXSwapIntervalEXT(display(), glxbuffer, interval);
else if (glXSwapIntervalMESA)
glXSwapIntervalMESA(interval);
else if (glXSwapIntervalSGI)
glXSwapIntervalSGI(interval);
}
#define VSYNC_DEBUG 0
void GlxBackend::waitSync()
@ -502,10 +514,10 @@ void GlxBackend::present()
}
}
} else {
if (glXSwapInterval) {
glXSwapInterval(options->isGlVSync() ? 1 : 0);
if (haveSwapInterval) {
setSwapInterval(options->isGlVSync() ? 1 : 0);
glXSwapBuffers(display(), glxbuffer);
glXSwapInterval(0);
setSwapInterval(0);
startRenderTimer(); // this is important so we don't assume to be loosing frames in the compositor timing calculation
} else {
waitSync();

2
glxbackend.h
View file

@ -57,6 +57,7 @@ private:
void waitSync();
bool initRenderingContext();
bool initBufferConfigs();
void setSwapInterval(int interval);
GC gcroot;
Drawable buffer;
@ -66,6 +67,7 @@ private:
GLXFBConfig fbcbuffer;
GLXDrawable glxbuffer;
GLXContext ctxbuffer;
bool haveSwapInterval;
friend class GlxTexture;
};

27
libkwineffects/kwinglutils_funcs.cpp
View file

@ -65,7 +65,9 @@ glXCopySubBuffer_func glXCopySubBuffer;
// video_sync extension functions
glXGetVideoSync_func glXGetVideoSync;
glXWaitVideoSync_func glXWaitVideoSync;
glXSwapInterval_func glXSwapInterval;
glXSwapIntervalMESA_func glXSwapIntervalMESA;
glXSwapIntervalEXT_func glXSwapIntervalEXT;
glXSwapIntervalSGI_func glXSwapIntervalSGI;
// glActiveTexture
glActiveTexture_func glActiveTexture;
@ -170,17 +172,18 @@ void glxResolveFunctions()
glXWaitVideoSync = NULL;
}
if (hasGLExtension("GLX_SGI_swap_control")) {
glXSwapInterval = (glXSwapInterval_func) getProcAddress("glXSwapIntervalSGI");
} else if (hasGLExtension("GLX_EXT_swap_control")) {
glXSwapInterval = (glXSwapInterval_func) getProcAddress("glXSwapIntervalEXT");
} else if (hasGLExtension("GLX_MESA_swap_control")) {
glXSwapInterval = (glXSwapInterval_func) getProcAddress("glXSwapIntervalMESA");
} else if (hasGLExtension("GLX_OML_sync_control")) {
glXSwapInterval = (glXSwapInterval_func) getProcAddress("glXSwapIntervalOML");
} else {
glXSwapInterval = NULL;
}
if (hasGLExtension("GLX_SGI_swap_control"))
glXSwapIntervalSGI = (glXSwapIntervalSGI_func) getProcAddress("glXSwapIntervalSGI");
else
glXSwapIntervalSGI = NULL;
if (hasGLExtension("GLX_EXT_swap_control"))
glXSwapIntervalEXT = (glXSwapIntervalEXT_func) getProcAddress("glXSwapIntervalEXT");
else
glXSwapIntervalEXT = NULL;
if (hasGLExtension("GLX_MESA_swap_control"))
glXSwapIntervalMESA = (glXSwapIntervalMESA_func) getProcAddress("glXSwapIntervalMESA");
else
glXSwapIntervalMESA = NULL;
}
#endif

8
libkwineffects/kwinglutils_funcs.h
View file

@ -205,10 +205,14 @@ extern KWIN_EXPORT glXCopySubBuffer_func glXCopySubBuffer;
// video_sync extension functions
typedef int (*glXGetVideoSync_func)(unsigned int *count);
typedef int (*glXWaitVideoSync_func)(int divisor, int remainder, unsigned int *count);
typedef int (*glXSwapInterval_func)(int ratio);
typedef int (*glXSwapIntervalMESA_func)(unsigned int interval);
typedef void (*glXSwapIntervalEXT_func)(Display *dpy, GLXDrawable drawable, int interval);
typedef int (*glXSwapIntervalSGI_func)(int interval);
extern KWIN_EXPORT glXGetVideoSync_func glXGetVideoSync;
extern KWIN_EXPORT glXWaitVideoSync_func glXWaitVideoSync;
extern KWIN_EXPORT glXSwapInterval_func glXSwapInterval;
extern KWIN_EXPORT glXSwapIntervalMESA_func glXSwapIntervalMESA;
extern KWIN_EXPORT glXSwapIntervalEXT_func glXSwapIntervalEXT;
extern KWIN_EXPORT glXSwapIntervalSGI_func glXSwapIntervalSGI;
// glActiveTexture
typedef void (*glActiveTexture_func)(GLenum);