Mesa (gallium-0.2): i915: Update gem backend a bit

[Jakob Bornecrantz]

Module: Mesa
Branch: gallium-0.2
Commit: a874cf37ee2a792991819cad2cb73e3d2ddc87a3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a874cf37ee2a792991819cad2cb73e3d2ddc87a3

Author: Jakob Bornecrantz <wallbraker at gmail.com>
Date:   Sun Jan 18 15:35:50 2009 +0100

i915: Update gem backend a bit

---

 .../winsys/drm/intel/gem/intel_be_batchbuffer.c    |    3 ++-
 src/gallium/winsys/drm/intel/gem/intel_be_device.c |   15 +++++++++++----
 src/gallium/winsys/drm/intel/gem/intel_be_device.h |   20 ++++++++++++--------
 3 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c b/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c
index 2399910..af5c027 100644
--- a/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c
+++ b/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c
@@ -12,6 +12,7 @@ intel_be_batchbuffer_alloc(struct intel_be_context *intel)
 {
 	struct intel_be_batchbuffer *batch = CALLOC_STRUCT(intel_be_batchbuffer);
 
+
 	batch->base.buffer = NULL;
 	batch->base.winsys = &intel->base;
 	batch->base.map = NULL;
@@ -28,7 +29,7 @@ intel_be_batchbuffer_alloc(struct intel_be_context *intel)
 
 	intel_be_batchbuffer_reset(batch);
 
-	return NULL;
+	return batch;
 }
 
 void
diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_device.c b/src/gallium/winsys/drm/intel/gem/intel_be_device.c
index cf0c140..201a485 100644
--- a/src/gallium/winsys/drm/intel/gem/intel_be_device.c
+++ b/src/gallium/winsys/drm/intel/gem/intel_be_device.c
@@ -141,9 +141,10 @@ err:
 }
 
 struct pipe_buffer *
-intel_be_buffer_from_handle(struct intel_be_device *dev,
-			    const char* name, unsigned handle)
+intel_be_buffer_from_handle(struct pipe_winsys *winsys,
+                            const char* name, unsigned handle)
 {
+	struct intel_be_device *dev = intel_be_device(winsys);
 	struct intel_be_buffer *buffer = CALLOC_STRUCT(intel_be_buffer);
 
 	if (!buffer)
@@ -169,6 +170,14 @@ err:
 	return NULL;
 }
 
+unsigned
+intel_be_handle_from_buffer(struct pipe_winsys *winsys,
+                            struct pipe_buffer *buf)
+{
+	drm_intel_bo *bo = intel_bo(buf);
+	return bo->handle;
+}
+
 /*
  * Fence
  */
@@ -248,8 +257,6 @@ intel_be_init_device(struct intel_be_device *dev, int fd, unsigned id)
 
 	dev->pools.gem = drm_intel_bufmgr_gem_init(dev->fd, dev->max_batch_size);
 
-	dev->screen = i915_create_screen(&dev->base, id);
-
 	return true;
 }
 
diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_device.h b/src/gallium/winsys/drm/intel/gem/intel_be_device.h
index 53d6353..96e94c4 100644
--- a/src/gallium/winsys/drm/intel/gem/intel_be_device.h
+++ b/src/gallium/winsys/drm/intel/gem/intel_be_device.h
@@ -16,11 +16,6 @@ struct intel_be_device
 {
 	struct pipe_winsys base;
 
-	/**
-	 * Hw level screen
-	 */
-	struct pipe_screen *screen;
-
 	int fd; /**< Drm file discriptor */
 
 	size_t max_batch_size;
@@ -47,14 +42,23 @@ struct intel_be_buffer {
 };
 
 /**
- * Create a be buffer from a drm bo handle
+ * Create a be buffer from a drm bo handle.
  *
- * Takes a reference
+ * Takes a reference.
  */
 struct pipe_buffer *
-intel_be_buffer_from_handle(struct intel_be_device *device,
+intel_be_buffer_from_handle(struct pipe_winsys *winsys,
                             const char* name, unsigned handle);
 
+/**
+ * Gets a handle from a buffer.
+ *
+ * If buffer is destroyed handle may become invalid.
+ */
+unsigned
+intel_be_handle_from_buffer(struct pipe_winsys *winsys,
+                            struct pipe_buffer *buffer);
+
 static INLINE struct intel_be_buffer *
 intel_be_buffer(struct pipe_buffer *buf)
 {