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authorRobert Ellison <[email protected]>2008-11-21 11:42:14 -0700
committerRobert Ellison <[email protected]>2008-11-21 11:42:35 -0700
commit11fc390f6478526d4f0bdb4b7e628284da31b3b9 (patch)
tree5fd526db7370668cf4cf1c36844fa5eac705cb2d /src/gallium/drivers/cell/spu/spu_main.h
parent81aa678ce8f4a1f7c75b928ba2b107908959d50d (diff)
CELL: use variant-length fragment ops programs
This is a set of changes that optimizes the memory use of fragment operation programs (by using and transmitting only as much memory as is needed for the fragment ops programs, instead of maximal sizes), as well as eliminate the dependency on hard-coded maximal program sizes. State that is not dependent on fragment facing (i.e. that isn't using two-sided stenciling) will only save and transmit a single fragment operation program, instead of two identical programs. - Added the ability to emit a LNOP (No Operation (Load)) instruction. This is used to pad the generated fragment operations programs to a multiple of 8 bytes, which is necessary for proper operation of the dual instruction pipeline, and also required for proper SPU-side decoding. - Added the ability to allocate and manage a variant-length struct cell_command_fragment_ops. This structure now puts the generated function field at the end, where it can be as large as necessary. - On the PPU side, we now combine the generated front-facing and back-facing code into a single variant-length buffer (and only use one if the two sets of code are identical) for transmission to the SPU. - On the SPU side, we pull the correct sizes out of the buffer, allocate a new code buffer if the one we have isn't large enough, and save the code to that buffer. The buffer is deallocated when the SPU exits. - Commented out the emit_fetch() static function, which was not being used.
Diffstat (limited to 'src/gallium/drivers/cell/spu/spu_main.h')
-rw-r--r--src/gallium/drivers/cell/spu/spu_main.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_main.h b/src/gallium/drivers/cell/spu/spu_main.h
index 24cf7d77ce1..33767e7c51d 100644
--- a/src/gallium/drivers/cell/spu/spu_main.h
+++ b/src/gallium/drivers/cell/spu/spu_main.h
@@ -169,8 +169,8 @@ struct spu_global
ubyte ztile_status[CELL_MAX_HEIGHT/TILE_SIZE][CELL_MAX_WIDTH/TILE_SIZE] ALIGN16_ATTRIB;
/** Current fragment ops machine code, at 8-byte boundary */
- uint fragment_ops_code_front[SPU_MAX_FRAGMENT_OPS_INSTS] ALIGN8_ATTRIB;
- uint fragment_ops_code_back[SPU_MAX_FRAGMENT_OPS_INSTS] ALIGN8_ATTRIB;
+ uint *fragment_ops_code;
+ uint fragment_ops_code_size;
/** Current fragment ops functions, 0 = frontfacing, 1 = backfacing */
spu_fragment_ops_func fragment_ops[2];