summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/i915simple/i915_winsys.h
diff options
context:
space:
mode:
authorJosé Fonseca <[email protected]>2008-02-15 17:35:24 +0900
committerJosé Fonseca <[email protected]>2008-02-15 17:45:40 +0900
commitb642730be93149baa7556e5791393168ab396175 (patch)
tree67d174be5d4814261b93bc8b20c027a26d1c3d06 /src/gallium/drivers/i915simple/i915_winsys.h
parent4593be34b2a6e494f0e476c8aa8e1d2633fffd47 (diff)
Code reorganization: move files into their places.
This is in a separate commit to ensure renames are properly preserved.
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_winsys.h')
-rw-r--r--src/gallium/drivers/i915simple/i915_winsys.h115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_winsys.h b/src/gallium/drivers/i915simple/i915_winsys.h
new file mode 100644
index 00000000000..fe49710852b
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_winsys.h
@@ -0,0 +1,115 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * This is the interface that i915simple requires any window system
+ * hosting it to implement. This is the only include file in i915simple
+ * which is public.
+ *
+ */
+
+#ifndef I915_WINSYS_H
+#define I915_WINSYS_H
+
+
+#include "pipe/p_defines.h"
+
+
+/* Pipe drivers are (meant to be!) independent of both GL and the
+ * window system. The window system provides a buffer manager and a
+ * set of additional hooks for things like command buffer submission,
+ * etc.
+ *
+ * There clearly has to be some agreement between the window system
+ * driver and the hardware driver about the format of command buffers,
+ * etc.
+ */
+
+struct pipe_buffer;
+struct pipe_winsys;
+
+
+/**
+ * Additional winsys interface for i915simple.
+ *
+ * It is an over-simple batchbuffer mechanism. Will want to improve the
+ * performance of this, perhaps based on the cmdstream stuff. It
+ * would be pretty impossible to implement swz on top of this
+ * interface.
+ *
+ * Will also need additions/changes to implement static/dynamic
+ * indirect state.
+ */
+struct i915_winsys {
+
+ /**
+ * Reserve space on batch buffer.
+ *
+ * Returns a null pointer if there is insufficient space in the batch buffer
+ * to hold the requested number of dwords and relocations.
+ *
+ * The number of dwords should also include the number of relocations.
+ */
+ unsigned *(*batch_start)( struct i915_winsys *sws,
+ unsigned dwords,
+ unsigned relocs );
+
+ void (*batch_dword)( struct i915_winsys *sws,
+ unsigned dword );
+
+ /**
+ * Emit a relocation to a buffer.
+ *
+ * Used not only when the buffer addresses are not pinned, but also to
+ * ensure refered buffers will not be destroyed until the current batch
+ * buffer execution is finished.
+ *
+ * The access flags is a combination of I915_BUFFER_ACCESS_WRITE and
+ * I915_BUFFER_ACCESS_READ macros.
+ */
+ void (*batch_reloc)( struct i915_winsys *sws,
+ struct pipe_buffer *buf,
+ unsigned access_flags,
+ unsigned delta );
+
+ void (*batch_flush)( struct i915_winsys *sws );
+ void (*batch_finish)( struct i915_winsys *sws );
+};
+
+#define I915_BUFFER_ACCESS_WRITE 0x1
+#define I915_BUFFER_ACCESS_READ 0x2
+
+#define I915_BUFFER_USAGE_LIT_VERTEX (PIPE_BUFFER_USAGE_CUSTOM << 0)
+
+
+struct pipe_context *i915_create( struct pipe_winsys *,
+ struct i915_winsys *,
+ unsigned pci_id );
+
+
+#endif