Skia Compute core files

Bug: skia:
Change-Id: I4bba49cf20eff013e581800a3f114c85acd8498c
Reviewed-on: https://skia-review.googlesource.com/135782
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/compute/skc/raster_builder.h b/src/compute/skc/raster_builder.h
new file mode 100644
index 0000000000..9996a2bfd7
--- /dev/null
+++ b/src/compute/skc/raster_builder.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can
+ * be found in the LICENSE file.
+ *
+ */
+
+#pragma once
+
+//
+//
+//
+
+#include "skc.h"
+#include "assert_state.h"
+#include "extent_ring.h" // note that these structs are *not* opaque
+
+//
+//
+//
+
+typedef enum skc_raster_builder_state_e {
+
+  SKC_RASTER_BUILDER_STATE_READY,
+  SKC_RASTER_BUILDER_STATE_BUILDING
+
+} skc_raster_builder_state_e;
+
+//
+// Construct and dispose of a raster builder and its opaque
+// implementation.
+//
+
+struct skc_raster_builder
+{
+  struct skc_context              * context;
+
+  struct skc_raster_builder_impl  * impl;
+
+  skc_err                        (* add    )(struct skc_raster_builder_impl * const impl, skc_path_t const * paths, skc_uint count);
+  void                           (* end    )(struct skc_raster_builder_impl * const impl, skc_raster_t * const raster);
+  void                           (* start  )(struct skc_raster_builder_impl * const impl);
+  void                           (* force  )(struct skc_raster_builder_impl * const impl);
+  void                           (* release)(struct skc_raster_builder_impl * const impl);
+
+  struct {
+    skc_path_t                    * extent;
+    struct skc_extent_ring          ring;
+  } path_ids;
+
+  struct {
+    union skc_transform           * extent;
+    struct skc_extent_ring          ring;
+  } transforms;
+
+  struct {
+    union skc_path_clip           * extent;
+    struct skc_extent_ring          ring;
+  } clips;
+
+  struct {
+    union skc_cmd_fill            * extent;
+    struct skc_extent_ring          ring;
+  } fill_cmds;
+
+  struct {
+    skc_raster_t                  * extent;
+    struct skc_extent_ring          ring;
+  } raster_ids;
+
+  skc_uint                          refcount; // FIXME -- split this into host and impl refcounts
+
+  SKC_ASSERT_STATE_DECLARE(skc_raster_builder_state_e);
+};
+
+//
+//
+//