r300g: add API for building command buffers

The idea is to build a hardware command buffer for every CSO and memcpy
the buffer to a command stream at bind time (or dirty-state-emission time,
to be precise).

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r300_cs.h b/src/gallium/drivers/r300/r300_cs.h
index 1cdd4b82caa..1649766989d 100644
--- a/src/gallium/drivers/r300/r300_cs.h
+++ b/src/gallium/drivers/r300/r300_cs.h
@@ -56,6 +56,7 @@
     if (cs_count != 0) \
         debug_printf("r300: Warning: cs_count off by %d\n", cs_count); \
     cs_winsys->end_cs(cs_winsys, __FILE__, __FUNCTION__, __LINE__); \
+    cs_count = 0; \
 } while (0)
 
 
@@ -137,4 +138,15 @@
     cs_count -= 4; \
 } while (0)
 
+
+/**
+ * Command buffer emission.
+ */
+
+/* It's recommended not to call begin_cs/end_cs before/after this macro. */
+#define WRITE_CS_TABLE(values, count) do { \
+    assert(cs_count == 0); \
+    cs_winsys->write_cs_table(cs_winsys, values, count); \
+} while (0)
+
 #endif /* R300_CS_H */