diff options
Diffstat (limited to 'src/gallium/drivers/cell/ppu/cell_state_emit.c')
-rw-r--r-- | src/gallium/drivers/cell/ppu/cell_state_emit.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_state_emit.c b/src/gallium/drivers/cell/ppu/cell_state_emit.c index f35893537b..b00c41f47d 100644 --- a/src/gallium/drivers/cell/ppu/cell_state_emit.c +++ b/src/gallium/drivers/cell/ppu/cell_state_emit.c @@ -36,6 +36,78 @@ #include "draw/draw_private.h" +/** + * Find/create a cell_command_fragment_ops object corresponding to the + * current blend/stencil/z/colormask/etc. state. + */ +static struct cell_command_fragment_ops * +lookup_fragment_ops(struct cell_context *cell) +{ + struct cell_fragment_ops_key key; + struct cell_command_fragment_ops *ops; + + /* + * Build key + */ + key.blend = *cell->blend; + key.dsa = *cell->depth_stencil; + + if (cell->framebuffer.cbufs[0]) + key.color_format = cell->framebuffer.cbufs[0]->format; + else + key.color_format = PIPE_FORMAT_NONE; + + if (cell->framebuffer.zsbuf) + key.zs_format = cell->framebuffer.zsbuf->format; + else + key.zs_format = PIPE_FORMAT_NONE; + + /* + * Look up key in cache. + */ + ops = (struct cell_command_fragment_ops *) + util_keymap_lookup(cell->fragment_ops_cache, &key); + + /* + * If not found, create/save new fragment ops command. + */ + if (!ops) { + struct spe_function spe_code; + + if (0) + debug_printf("**** Create New Fragment Ops\n"); + + /* Prepare the buffer that will hold the generated code. */ + spe_init_func(&spe_code, SPU_MAX_FRAGMENT_OPS_INSTS * SPE_INST_SIZE); + + /* generate new code */ + cell_gen_fragment_function(cell, &spe_code); + + /* alloc new fragment ops command */ + ops = CALLOC_STRUCT(cell_command_fragment_ops); + + /* populate the new cell_command_fragment_ops object */ + ops->opcode = CELL_CMD_STATE_FRAGMENT_OPS; + memcpy(ops->code, spe_code.store, spe_code_size(&spe_code)); + ops->dsa = *cell->depth_stencil; + ops->blend = *cell->blend; + + /* insert cell_command_fragment_ops object into keymap/cache */ + util_keymap_insert(cell->fragment_ops_cache, &key, ops, NULL); + + /* release rtasm buffer */ + spe_release_func(&spe_code); + } + else { + if (0) + debug_printf("**** Re-use Fragment Ops\n"); + } + + return ops; +} + + + static void emit_state_cmd(struct cell_context *cell, uint cmd, const void *state, uint state_size) @@ -92,6 +164,7 @@ cell_emit_state(struct cell_context *cell) if (cell->dirty & (CELL_NEW_FRAMEBUFFER | CELL_NEW_DEPTH_STENCIL | CELL_NEW_BLEND)) { +#if 0 /* XXX we don't want to always do codegen here. We should have * a hash/lookup table to cache previous results... */ @@ -114,6 +187,13 @@ cell_emit_state(struct cell_context *cell) /* free codegen buffer */ spe_release_func(&spe_code); +#else + struct cell_command_fragment_ops *fops, *fops_cmd; + fops_cmd = cell_batch_alloc(cell, sizeof(*fops_cmd)); + fops = lookup_fragment_ops(cell); + memcpy(fops_cmd, fops, sizeof(*fops)); +#endif + } if (cell->dirty & CELL_NEW_SAMPLER) { |