Mesa (master): mesa: Add gl_shared_state::ShareGroupReset and gl_context:: ShareGroupReset

[Ian Romanick]

Module: Mesa
Branch: master
Commit: a6eb04c3d88c685de7db9c61e94c84d30325b845
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a6eb04c3d88c685de7db9c61e94c84d30325b845

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Wed Sep  5 22:30:43 2012 -0700

mesa: Add gl_shared_state::ShareGroupReset and gl_context::ShareGroupReset

These will be used to determine whether to signal a GPU reset after
another context in the share group has observed a reset.

v2: Change ShareGroupReset from GLboolean to bool.  Suggested by Brian.

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Brian Paul <brianp at vmware.com>

---

 src/mesa/main/context.c |    1 +
 src/mesa/main/mtypes.h  |   19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 913f409..d005d23 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -808,6 +808,7 @@ init_attrib_groups(struct gl_context *ctx)
    ctx->NewState = _NEW_ALL;
    ctx->NewDriverState = ~0;
    ctx->ErrorValue = GL_NO_ERROR;
+   ctx->ShareGroupReset = false;
    ctx->varying_vp_inputs = VERT_BIT_ALL;
 
    return GL_TRUE;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 0e5bcc9..ae96e23 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -35,6 +35,7 @@
 
 
 #include <stdint.h>             /* uint32_t */
+#include <stdbool.h>
 
 #include "main/glheader.h"
 #include "main/config.h"
@@ -2812,6 +2813,17 @@ struct gl_shared_state
 
    /** GL_ARB_sampler_objects */
    struct _mesa_HashTable *SamplerObjects;
+
+   /**
+    * Some context in this share group was affected by a GPU reset
+    *
+    * On the next call to \c glGetGraphicsResetStatus, contexts that have not
+    * been affected by a GPU reset must also return
+    * \c GL_INNOCENT_CONTEXT_RESET_ARB.
+    *
+    * Once this field becomes true, it is never reset to false.
+    */
+   bool ShareGroupReset;
 };
 
 
@@ -3967,6 +3979,13 @@ struct gl_context
    const void *vdpGetProcAddress;
    struct set *vdpSurfaces;
    /*@}*/
+
+   /**
+    * Has this context observed a GPU reset in any context in the share group?
+    *
+    * Once this field becomes true, it is never reset to false.
+    */
+   GLboolean ShareGroupReset;
 };