mesa: change ctx->Driver.ProgramStringNotify() to return GLboolean

GL_TRUE indicates that the driver accepts the program.
GL_FALSE indicates the program can't be compiled/translated by the
driver for some reason (too many resources used, etc).

Propogate this result up to the GL API: set GL_INVALID_OPERATION
error if glProgramString() was called.  Set shader program link
status to GL_FALSE if glLinkProgram() was called.

At this point, drivers still don't do any program checking and
always return GL_TRUE.

1 files changed, 6 insertions, 3 deletions

diff --git a/src/mesa/state_tracker/st_cb_program.c b/src/mesa/state_tracker/st_cb_program.c
index 86c53b4e763..82ef5572e1d 100644
--- a/src/mesa/state_tracker/st_cb_program.c
+++ b/src/mesa/state_tracker/st_cb_program.c
@@ -177,9 +177,9 @@ static GLboolean st_is_program_native( GLcontext *ctx,
 }
 
 
-static void st_program_string_notify( GLcontext *ctx,
-				      GLenum target,
-				      struct gl_program *prog )
+static GLboolean st_program_string_notify( GLcontext *ctx,
+                                           GLenum target,
+                                           struct gl_program *prog )
 {
    struct st_context *st = st_context(ctx);
 
@@ -211,6 +211,9 @@ static void st_program_string_notify( GLcontext *ctx,
       if (st->vp == stvp)
 	 st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
    }
+
+   /* XXX check if program is legal, within limits */
+   return GL_TRUE;
 }