xserver mesa git update 10 Mar 2011

1 files changed, 165 insertions, 164 deletions

diff --git a/mesalib/src/mesa/state_tracker/st_cb_flush.c b/mesalib/src/mesa/state_tracker/st_cb_flush.c
index 31189f360..35ab00f6d 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_flush.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_flush.c
@@ -1,164 +1,165 @@
-/**************************************************************************

- * 

- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.

- * All Rights Reserved.

- * 

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the

- * "Software"), to deal in the Software without restriction, including

- * without limitation the rights to use, copy, modify, merge, publish,

- * distribute, sub license, and/or sell copies of the Software, and to

- * permit persons to whom the Software is furnished to do so, subject to

- * the following conditions:

- * 

- * The above copyright notice and this permission notice (including the

- * next paragraph) shall be included in all copies or substantial portions

- * of the Software.

- * 

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- * 

- **************************************************************************/

-

- /*

-  * Authors:

-  *   Keith Whitwell <keith@tungstengraphics.com>

-  *   Brian Paul

-  */

-

-#include "main/glheader.h"

-#include "main/macros.h"

-#include "main/context.h"

-#include "st_context.h"

-#include "st_cb_bitmap.h"

-#include "st_cb_flush.h"

-#include "st_cb_clear.h"

-#include "st_cb_fbo.h"

-#include "st_manager.h"

-#include "pipe/p_context.h"

-#include "pipe/p_defines.h"

-#include "pipe/p_screen.h"

-#include "util/u_gen_mipmap.h"

-#include "util/u_blit.h"

-

-

-/** Check if we have a front color buffer and if it's been drawn to. */

-static INLINE GLboolean

-is_front_buffer_dirty(struct st_context *st)

-{

-   struct gl_framebuffer *fb = st->ctx->DrawBuffer;

-   struct st_renderbuffer *strb

-      = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);

-   return strb && strb->defined;

-}

-

-

-/**

- * Tell the screen to display the front color buffer on-screen.

- */

-static void

-display_front_buffer(struct st_context *st)

-{

-   struct gl_framebuffer *fb = st->ctx->DrawBuffer;

-   struct st_renderbuffer *strb

-      = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);

-

-   if (strb) {

-      /* Hook for copying "fake" frontbuffer if necessary:

-       */

-      st_manager_flush_frontbuffer(st);

-   }

-}

-

-

-void st_flush( struct st_context *st, uint pipeFlushFlags,

-               struct pipe_fence_handle **fence )

-{

-   FLUSH_CURRENT(st->ctx, 0);

-

-   /* Release any vertex buffers that might potentially be accessed in

-    * successive frames:

-    */

-   st_flush_bitmap(st);

-   st_flush_clear(st);

-   util_blit_flush(st->blit);

-   util_gen_mipmap_flush(st->gen_mipmap);

-

-   st->pipe->flush( st->pipe, pipeFlushFlags, fence );

-}

-

-

-/**

- * Flush, and wait for completion.

- */

-void st_finish( struct st_context *st )

-{

-   struct pipe_fence_handle *fence = NULL;

-

-   st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence);

-

-   if(fence) {

-      st->pipe->screen->fence_finish(st->pipe->screen, fence, 0);

-      st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);

-   }

-}

-

-

-

-/**

- * Called via ctx->Driver.Flush()

- */

-static void st_glFlush(struct gl_context *ctx)

-{

-   struct st_context *st = st_context(ctx);

-

-   /* Don't call st_finish() here.  It is not the state tracker's

-    * responsibilty to inject sleeps in the hope of avoiding buffer

-    * synchronization issues.  Calling finish() here will just hide

-    * problems that need to be fixed elsewhere.

-    */

-   st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);

-

-   if (is_front_buffer_dirty(st)) {

-      display_front_buffer(st);

-   }

-}

-

-

-/**

- * Called via ctx->Driver.Finish()

- */

-static void st_glFinish(struct gl_context *ctx)

-{

-   struct st_context *st = st_context(ctx);

-

-   st_finish(st);

-

-   if (is_front_buffer_dirty(st)) {

-      display_front_buffer(st);

-   }

-}

-

-

-void st_init_flush_functions(struct dd_function_table *functions)

-{

-   functions->Flush = st_glFlush;

-   functions->Finish = st_glFinish;

-

-   /* Windows opengl32.dll calls glFinish prior to every swapbuffers.

-    * This is unnecessary and degrades performance.  Luckily we have some

-    * scope to work around this, as the externally-visible behaviour of

-    * Finish() is identical to Flush() in all cases - no differences in

-    * rendering or ReadPixels are visible if we opt not to wait here.

-    *

-    * Only set this up on windows to avoid suprise elsewhere.

-    */

-#ifdef PIPE_OS_WINDOWS

-   functions->Finish = st_glFlush;

-#endif

-}

+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+ /*
+  * Authors:
+  *   Keith Whitwell <keith@tungstengraphics.com>
+  *   Brian Paul
+  */
+
+#include "main/glheader.h"
+#include "main/macros.h"
+#include "main/context.h"
+#include "st_context.h"
+#include "st_cb_bitmap.h"
+#include "st_cb_flush.h"
+#include "st_cb_clear.h"
+#include "st_cb_fbo.h"
+#include "st_manager.h"
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+#include "util/u_gen_mipmap.h"
+#include "util/u_blit.h"
+
+
+/** Check if we have a front color buffer and if it's been drawn to. */
+static INLINE GLboolean
+is_front_buffer_dirty(struct st_context *st)
+{
+   struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+   struct st_renderbuffer *strb
+      = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
+   return strb && strb->defined;
+}
+
+
+/**
+ * Tell the screen to display the front color buffer on-screen.
+ */
+static void
+display_front_buffer(struct st_context *st)
+{
+   struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+   struct st_renderbuffer *strb
+      = st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
+
+   if (strb) {
+      /* Hook for copying "fake" frontbuffer if necessary:
+       */
+      st_manager_flush_frontbuffer(st);
+   }
+}
+
+
+void st_flush( struct st_context *st, uint pipeFlushFlags,
+               struct pipe_fence_handle **fence )
+{
+   FLUSH_CURRENT(st->ctx, 0);
+
+   /* Release any vertex buffers that might potentially be accessed in
+    * successive frames:
+    */
+   st_flush_bitmap(st);
+   st_flush_clear(st);
+   util_blit_flush(st->blit);
+   util_gen_mipmap_flush(st->gen_mipmap);
+
+   st->pipe->flush( st->pipe, pipeFlushFlags, fence );
+}
+
+
+/**
+ * Flush, and wait for completion.
+ */
+void st_finish( struct st_context *st )
+{
+   struct pipe_fence_handle *fence = NULL;
+
+   st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence);
+
+   if(fence) {
+      st->pipe->screen->fence_finish(st->pipe->screen, fence, 0,
+                                     PIPE_TIMEOUT_INFINITE);
+      st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
+   }
+}
+
+
+
+/**
+ * Called via ctx->Driver.Flush()
+ */
+static void st_glFlush(struct gl_context *ctx)
+{
+   struct st_context *st = st_context(ctx);
+
+   /* Don't call st_finish() here.  It is not the state tracker's
+    * responsibilty to inject sleeps in the hope of avoiding buffer
+    * synchronization issues.  Calling finish() here will just hide
+    * problems that need to be fixed elsewhere.
+    */
+   st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
+
+   if (is_front_buffer_dirty(st)) {
+      display_front_buffer(st);
+   }
+}
+
+
+/**
+ * Called via ctx->Driver.Finish()
+ */
+static void st_glFinish(struct gl_context *ctx)
+{
+   struct st_context *st = st_context(ctx);
+
+   st_finish(st);
+
+   if (is_front_buffer_dirty(st)) {
+      display_front_buffer(st);
+   }
+}
+
+
+void st_init_flush_functions(struct dd_function_table *functions)
+{
+   functions->Flush = st_glFlush;
+   functions->Finish = st_glFinish;
+
+   /* Windows opengl32.dll calls glFinish prior to every swapbuffers.
+    * This is unnecessary and degrades performance.  Luckily we have some
+    * scope to work around this, as the externally-visible behaviour of
+    * Finish() is identical to Flush() in all cases - no differences in
+    * rendering or ReadPixels are visible if we opt not to wait here.
+    *
+    * Only set this up on windows to avoid suprise elsewhere.
+    */
+#ifdef PIPE_OS_WINDOWS
+   functions->Finish = st_glFlush;
+#endif
+}