implement a fully concurrent pipeline based on tiles.

- got rid of the z-buffer lock to avoid contention.
- little improvements to fb.c

1 files changed, 18 insertions, 0 deletions

diff --git a/internal.h b/internal.h
index a145585..edbec99 100644
--- a/internal.h
+++ b/internal.h
@@ -1,3 +1,21 @@
+typedef struct Tilerparam Tilerparam;
+typedef struct Rastertask Rastertask;
+
+struct Rastertask
+{
+	SUparams *params;
+	Rectangle wr;		/* working rect */
+	Triangle t;
+};
+
+struct Tilerparam
+{
+	Channel *paramsc;
+	Channel **tasksc;	/* Channel*[nproc] */
+	Rectangle *wr;		/* Rectangle[nproc] */
+	ulong nproc;
+};
+
 /* alloc */
 void *emalloc(ulong);
 void *erealloc(void*, ulong);