OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dri: Optionally turn off a couple of GLX extensions based on driconf options

Browse Source 
With GLX_EXT_buffer_age turned on, gnome-shell will use full-screen damage
with GLX, which severely hurts performance with architectures that emulate
page-flips with copies. Like vmware. We would like to be able to turn off that
extension. Similarly, typically the GLX_OML_sync_control doesn't make much
sense on a virtual architecture since we don't really sync to the host's
vertical retrace. We'd like to be able to turn it off as well.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Thomas Hellstrom
2017-05-05 05:57:27 -07:00
parent ff2978b449
commit 9d3f177e4b
3 changed files with 25 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/glx/dri2_glx.c
View File

@@ -1311,12 +1311,17 @@ dri2CreateScreen(int screen, struct glx_display * priv)
psp->getBufferAge = NULL;
if (pdp->driMinor >= 2) {
unsigned char disable;
psp->getDrawableMSC = dri2DrawableGetMSC;
psp->waitForMSC = dri2WaitForMSC;
psp->waitForSBC = dri2WaitForSBC;
psp->setSwapInterval = dri2SetSwapInterval;
psp->getSwapInterval = dri2GetSwapInterval;
__glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control");
if (psc->config->configQueryb(psc->driScreen,
"glx_disable_oml_sync_control",
&disable) || !disable)
__glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control");
}
/* DRI2 supports SubBuffer through DRI2CopyRegion, so it's always

11
src/glx/dri3_glx.c
View File

@@ -796,6 +796,7 @@ dri3_create_screen(int screen, struct glx_display * priv)
struct glx_config *configs = NULL, *visuals = NULL;
char *driverName, *deviceName, *tmp;
int i;
unsigned char disable;
psc = calloc(1, sizeof *psc);
if (psc == NULL)
@@ -934,13 +935,19 @@ dri3_create_screen(int screen, struct glx_display * priv)
psp->waitForSBC = dri3_wait_for_sbc;
psp->setSwapInterval = dri3_set_swap_interval;
psp->getSwapInterval = dri3_get_swap_interval;
__glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control");
if (psc->config->configQueryb(psc->driScreen,
"glx_disable_oml_sync_control",
&disable) || !disable)
__glXEnableDirectExtension(&psc->base, "GLX_OML_sync_control");
psp->copySubBuffer = dri3_copy_sub_buffer;
__glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer");
psp->getBufferAge = dri3_get_buffer_age;
__glXEnableDirectExtension(&psc->base, "GLX_EXT_buffer_age");
if (psc->config->configQueryb(psc->driScreen,
"glx_disable_ext_buffer_age",
&disable) || !disable)
__glXEnableDirectExtension(&psc->base, "GLX_EXT_buffer_age");
free(driverName);
free(deviceName);

10
src/mesa/drivers/dri/common/xmlpool/t_options.h
View File

@@ -328,6 +328,16 @@ DRI_CONF_OPT_BEGIN_B(mesa_glthread, def) \
DRI_CONF_DESC(en,gettext("Enable offloading GL driver work to a separate thread")) \
DRI_CONF_OPT_END
#define DRI_CONF_DISABLE_EXT_BUFFER_AGE(def) \
DRI_CONF_OPT_BEGIN_B(glx_disable_ext_buffer_age, def) \
DRI_CONF_DESC(en, gettext("Disable the GLX_EXT_buffer_age extension")) \
DRI_CONF_OPT_END
#define DRI_CONF_DISABLE_OML_SYNC_CONTROL(def) \
DRI_CONF_OPT_BEGIN_B(glx_disable_oml_sync_control, def) \
DRI_CONF_DESC(en, gettext("Disable the GLX_OML_sync_control extension")) \
DRI_CONF_OPT_END
/**
* \brief Software-fallback options. To allow using features (like