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-rw-r--r--glx/createcontext.c15
-rw-r--r--glx/extension_string.c1
-rw-r--r--glx/extension_string.h3
-rw-r--r--glx/glxcmds.c20
-rw-r--r--glx/glxcontext.h5
-rw-r--r--glx/glxdri2.c7
-rw-r--r--glx/glxdriswrast.c8
7 files changed, 57 insertions, 2 deletions
diff --git a/glx/createcontext.c b/glx/createcontext.c
index cbeddec26..d06bc1f7f 100644
--- a/glx/createcontext.c
+++ b/glx/createcontext.c
@@ -87,6 +87,9 @@ __glXDisp_CreateContextAttribsARB(__GLXclientState * cl, GLbyte * pc)
int minor_version = 0;
uint32_t flags = 0;
uint32_t render_type = GLX_RGBA_TYPE;
+#ifdef GLX_CONTEXT_RELEASE_BEHAVIOR_ARB
+ uint32_t flush = GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB;
+#endif
__GLXcontext *ctx = NULL;
__GLXcontext *shareCtx = NULL;
__GLXscreen *glxScreen;
@@ -194,6 +197,15 @@ __glXDisp_CreateContextAttribsARB(__GLXclientState * cl, GLbyte * pc)
break;
+#ifdef GLX_CONTEXT_RELEASE_BEHAVIOR_ARB
+ case GLX_CONTEXT_RELEASE_BEHAVIOR_ARB:
+ flush = attribs[2 * i + 1];
+ if (flush != GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB
+ && flush != GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB)
+ return BadValue;
+ break;
+#endif
+
default:
return BadValue;
}
@@ -333,6 +345,9 @@ __glXDisp_CreateContextAttribsARB(__GLXclientState * cl, GLbyte * pc)
ctx->drawPriv = NULL;
ctx->readPriv = NULL;
ctx->resetNotificationStrategy = reset;
+#ifdef GLX_CONTEXT_RELEASE_BEHAVIOR_ARB
+ ctx->releaseBehavior = flush;
+#endif
/* Add the new context to the various global tables of GLX contexts.
*/
diff --git a/glx/extension_string.c b/glx/extension_string.c
index 4bef96f0b..e881d2109 100644
--- a/glx/extension_string.c
+++ b/glx/extension_string.c
@@ -72,6 +72,7 @@ struct extension_info {
static const struct extension_info known_glx_extensions[] = {
/* GLX_ARB_get_proc_address is implemented on the client. */
/* *INDENT-OFF* */
+ { GLX(ARB_context_flush_control), VER(0,0), N, },
{ GLX(ARB_create_context), VER(0,0), N, },
{ GLX(ARB_create_context_profile), VER(0,0), N, },
{ GLX(ARB_create_context_robustness), VER(0,0), N, },
diff --git a/glx/extension_string.h b/glx/extension_string.h
index e7d393297..bac7b0624 100644
--- a/glx/extension_string.h
+++ b/glx/extension_string.h
@@ -36,7 +36,8 @@
enum {
/* GLX_ARB_get_proc_address is implemented on the client. */
- ARB_create_context_bit = 0,
+ ARB_context_flush_control_bit = 0,
+ ARB_create_context_bit,
ARB_create_context_profile_bit,
ARB_create_context_robustness_bit,
ARB_fbconfig_float_bit,
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index f5f2babb8..cbd4ede39 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -334,6 +334,19 @@ DoCreateContext(__GLXclientState * cl, GLXContextID gcId,
*/
glxc->resetNotificationStrategy = GLX_NO_RESET_NOTIFICATION_ARB;
+#ifdef GLX_CONTEXT_RELEASE_BEHAVIOR_ARB
+ /* The GLX_ARB_context_flush_control spec says:
+ *
+ * "The default value [for GLX_CONTEXT_RELEASE_BEHAVIOR] is
+ * CONTEXT_RELEASE_BEHAVIOR_FLUSH, and may in some cases be changed
+ * using platform-specific context creation extensions."
+ *
+ * Without using glXCreateContextAttribsARB, there is no way to specify a
+ * non-default release behavior.
+ */
+ glxc->releaseBehavior = GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB;
+#endif
+
/* Add the new context to the various global tables of GLX contexts.
*/
if (!__glXAddContext(glxc)) {
@@ -626,7 +639,12 @@ DoMakeCurrent(__GLXclientState * cl,
/*
** Flush the previous context if needed.
*/
- if (prevglxc->hasUnflushedCommands) {
+ Bool need_flush = GL_TRUE;
+#ifdef GLX_CONTEXT_RELEASE_BEHAVIOR_ARB
+ if (prevglxc->releaseBehavior == GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB)
+ need_flush = GL_FALSE;
+#endif
+ if (prevglxc->hasUnflushedCommands && need_flush) {
if (__glXForceCurrent(cl, tag, (int *) &error)) {
glFlush();
prevglxc->hasUnflushedCommands = GL_FALSE;
diff --git a/glx/glxcontext.h b/glx/glxcontext.h
index 677898a67..0733281d7 100644
--- a/glx/glxcontext.h
+++ b/glx/glxcontext.h
@@ -108,6 +108,11 @@ struct __GLXcontext {
*/
GLenum resetNotificationStrategy;
+ /**
+ * Context release behavior
+ */
+ GLenum releaseBehavior;
+
/*
** Buffers for feedback and selection.
*/
diff --git a/glx/glxdri2.c b/glx/glxdri2.c
index bcd57a4a3..6fb3d9278 100644
--- a/glx/glxdri2.c
+++ b/glx/glxdri2.c
@@ -921,6 +921,13 @@ initializeExtensions(__GLXDRIscreen * screen)
"AIGLX: enabled GLX_ARB_create_context_robustness\n");
}
+#ifdef __DRI2_FLUSH_CONTROL
+ if (strcmp(extensions[i]->name, __DRI2_FLUSH_CONTROL) == 0) {
+ __glXEnableExtension(screen->glx_enable_bits,
+ "GLX_ARB_context_flush_control\n");
+ }
+#endif
+
/* Ignore unknown extensions */
}
}
diff --git a/glx/glxdriswrast.c b/glx/glxdriswrast.c
index e25ca4768..9add2a13f 100644
--- a/glx/glxdriswrast.c
+++ b/glx/glxdriswrast.c
@@ -424,6 +424,14 @@ initializeExtensions(__GLXDRIscreen * screen)
screen->texBuffer = (const __DRItexBufferExtension *) extensions[i];
/* GLX_EXT_texture_from_pixmap is always enabled. */
}
+
+#ifdef __DRI2_FLUSH_CONTROL
+ if (strcmp(extensions[i]->name, __DRI2_FLUSH_CONTROL) == 0) {
+ __glXEnableExtension(screen->glx_enable_bits,
+ "GLX_ARB_context_flush_control\n");
+ }
+#endif
+
}
}