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Diffstat (limited to 'src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c')
-rw-r--r--src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c b/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c
new file mode 100644
index 0000000000..8ec5c7e82a
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c
@@ -0,0 +1,184 @@
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <stdlib.h>
+#include <xf86drm.h>
+#include "ws_dri_bufpool.h"
+#include "ws_dri_bufmgr.h"
+
+#include "intel_context.h"
+#include "intel_batchbuffer.h"
+#include "intel_winsys.h"
+
+#include "pipe/p_util.h"
+#include "pipe/p_winsys.h"
+#include "i915simple/i915_winsys.h"
+#include "i915simple/i915_screen.h"
+
+
+struct intel_i915_winsys {
+ struct i915_winsys winsys; /**< batch buffer funcs */
+ struct pipe_winsys *pws;
+ struct intel_context *intel;
+};
+
+
+/* Turn a i915simple winsys into an intel/i915simple winsys:
+ */
+static inline struct intel_i915_winsys *
+intel_i915_winsys( struct i915_winsys *sws )
+{
+ return (struct intel_i915_winsys *)sws;
+}
+
+
+/* Simple batchbuffer interface:
+ */
+
+static unsigned *intel_i915_batch_start( struct i915_winsys *sws,
+ unsigned dwords,
+ unsigned relocs )
+{
+ struct intel_context *intel = intel_i915_winsys(sws)->intel;
+
+ /* XXX: check relocs.
+ */
+ if (intel_batchbuffer_space( intel->batch ) >= dwords * 4) {
+ /* XXX: Hmm, the driver can't really do much with this pointer:
+ */
+ return (unsigned *)intel->batch->ptr;
+ }
+ else
+ return NULL;
+}
+
+static void intel_i915_batch_dword( struct i915_winsys *sws,
+ unsigned dword )
+{
+ struct intel_context *intel = intel_i915_winsys(sws)->intel;
+ intel_batchbuffer_emit_dword( intel->batch, dword );
+}
+
+static void intel_i915_batch_reloc( struct i915_winsys *sws,
+ struct pipe_buffer *buf,
+ unsigned access_flags,
+ unsigned delta )
+{
+ struct intel_context *intel = intel_i915_winsys(sws)->intel;
+ 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;
+ }
+
+#if 0 /* JB old */
+ intel_batchbuffer_emit_reloc( intel->batch,
+ dri_bo( buf ),
+ flags, mask,
+ delta );
+#else /* new */
+ intel_offset_relocation( intel->batch,
+ delta,
+ dri_bo( buf ),
+ flags,
+ mask );
+#endif
+}
+
+
+
+static void intel_i915_batch_flush( struct i915_winsys *sws,
+ struct pipe_fence_handle **fence )
+{
+ struct intel_i915_winsys *iws = intel_i915_winsys(sws);
+ struct intel_context *intel = iws->intel;
+ union {
+ struct _DriFenceObject *dri;
+ struct pipe_fence_handle *pipe;
+ } fu;
+
+ if (fence)
+ assert(!*fence);
+
+ fu.dri = intel_batchbuffer_flush( intel->batch );
+
+ if (!fu.dri) {
+ assert(0);
+ *fence = NULL;
+ return;
+ }
+
+ if (fu.dri) {
+ if (fence)
+ *fence = fu.pipe;
+ else
+ driFenceUnReference(&fu.dri);
+ }
+
+}
+
+
+/**
+ * Create i915 hardware rendering context.
+ */
+struct pipe_context *
+intel_create_i915simple( struct intel_context *intel,
+ struct pipe_winsys *winsys )
+{
+ struct intel_i915_winsys *iws = CALLOC_STRUCT( intel_i915_winsys );
+ struct pipe_screen *screen;
+
+ /* Fill in this struct with callbacks that i915simple will need to
+ * communicate with the window system, buffer manager, etc.
+ */
+ iws->winsys.batch_start = intel_i915_batch_start;
+ iws->winsys.batch_dword = intel_i915_batch_dword;
+ iws->winsys.batch_reloc = intel_i915_batch_reloc;
+ iws->winsys.batch_flush = intel_i915_batch_flush;
+ iws->pws = winsys;
+ iws->intel = intel;
+
+ screen = i915_create_screen(winsys, PCI_CHIP_I945_GM);
+ assert(screen);
+
+ /* Create the i915simple context:
+ */
+ return i915_create_context( screen,
+ winsys,
+ &iws->winsys );
+}