cell: initial support for fragment shader code generation.

TGSI shaders are translated into SPE instructions which are then sent to
the SPEs for execution.  Only a few opcodes work, no swizzling yet, no
support for constants/immediates, etc.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/gallium/drivers/cell/common.h b/src/gallium/drivers/cell/common.h
index e989d8c2e5..cb0631baf5 100644
--- a/src/gallium/drivers/cell/common.h
+++ b/src/gallium/drivers/cell/common.h
@@ -92,6 +92,7 @@
 #define CELL_CMD_STATE_UNIFORMS      16
 #define CELL_CMD_STATE_VS_ARRAY_INFO 17
 #define CELL_CMD_STATE_BIND_VS       18
+#define CELL_CMD_STATE_FRAGMENT_PROGRAM 19
 #define CELL_CMD_STATE_ATTRIB_FETCH  20
 #define CELL_CMD_VS_EXECUTE          22
 #define CELL_CMD_FLUSH_BUFFER_RANGE  23
@@ -125,6 +126,20 @@ struct cell_command_fragment_ops
 };
 
 
+/** Max instructions for fragment programs */
+#define SPU_MAX_FRAGMENT_PROGRAM_INSTS 128
+
+/**
+ * Command to send a fragment progra to SPUs.
+ */
+struct cell_command_fragment_program
+{
+   uint64_t opcode;      /**< CELL_CMD_STATE_FRAGMENT_PROGRAM */
+   uint num_inst;        /**< Number of instructions */
+   unsigned code[SPU_MAX_FRAGMENT_PROGRAM_INSTS];
+};
+
+
 /**
  * Tell SPUs about the framebuffer size, location
  */