1 files changed, 107 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/intel/common/intel_be_context.c b/src/gallium/winsys/drm/intel/common/intel_be_context.c
new file mode 100644
index 0000000000..1af39674f4
--- /dev/null
+++ b/src/gallium/winsys/drm/intel/common/intel_be_context.c
@@ -0,0 +1,107 @@
+
+/*
+ * Authors: Jakob Bornecrantz <jakob-at-tungstengraphics.com>
+ */
+
+#include "ws_dri_fencemgr.h"
+#include "intel_be_device.h"
+#include "intel_be_context.h"
+#include "intel_be_batchbuffer.h"
+
+static INLINE struct intel_be_context *
+intel_be_context(struct i915_winsys *sws)
+{
+	return (struct intel_be_context *)sws;
+}
+
+/* Simple batchbuffer interface:
+ */
+
+static struct i915_batchbuffer*
+intel_i915_batch_get(struct i915_winsys *sws)
+{
+	struct intel_be_context *intel = intel_be_context(sws);
+	return &intel->batch->base;
+}
+
+static void intel_i915_batch_reloc(struct i915_winsys *sws,
+				   struct pipe_buffer *buf,
+				   unsigned access_flags,
+				   unsigned delta)
+{
+	struct intel_be_context *intel = intel_be_context(sws);
+
+	unsigned flags = DRM_BO_FLAG_MEM_TT;
+	unsigned mask = DRM_BO_MASK_MEM;
+
+	if (access_flags & I915_BUFFER_ACCESS_WRITE) {
+		flags |= DRM_BO_FLAG_WRITE;
+		mask |= DRM_BO_FLAG_WRITE;
+	}
+
+	if (access_flags & I915_BUFFER_ACCESS_READ) {
+		flags |= DRM_BO_FLAG_READ;
+		mask |= DRM_BO_FLAG_READ;
+	}
+
+	intel_be_offset_relocation(intel->batch,
+				delta,
+				dri_bo(buf),
+				flags,
+				mask);
+}
+
+static void intel_i915_batch_flush(struct i915_winsys *sws,
+				   struct pipe_fence_handle **fence)
+{
+	struct intel_be_context *intel = intel_be_context(sws);
+
+	union {
+		struct _DriFenceObject *dri;
+		struct pipe_fence_handle *pipe;
+	} fu;
+
+	if (fence)
+		assert(!*fence);
+
+	fu.dri = intel_be_batchbuffer_flush(intel->batch);
+
+	if (!fu.dri) {
+		assert(0);
+		*fence = NULL;
+		return;
+	}
+
+	if (fu.dri) {
+		if (fence)
+			*fence = fu.pipe;
+		else
+			driFenceUnReference(&fu.dri);
+	}
+
+}
+
+boolean
+intel_be_init_context(struct intel_be_context *intel, struct intel_be_device *device)
+{
+	assert(intel);
+	assert(device);
+
+	intel->device = device;
+
+	/* TODO move framebuffer createion to the driver */
+
+	intel->base.batch_get = intel_i915_batch_get;
+	intel->base.batch_reloc = intel_i915_batch_reloc;
+	intel->base.batch_flush = intel_i915_batch_flush;
+
+	intel->batch = intel_be_batchbuffer_alloc(intel);
+
+	return true;
+}
+
+void
+intel_be_destroy_context(struct intel_be_context *intel)
+{
+	intel_be_batchbuffer_free(intel->batch);
+}