diff options
author | Keith Whitwell <keithw@vmware.com> | 2009-12-22 09:40:39 +0000 |
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committer | Keith Whitwell <keithw@vmware.com> | 2009-12-22 09:40:39 +0000 |
commit | aa02683e45f1eaf61bba2ba7eeda7686efeed2ca (patch) | |
tree | 63e0ef2fa85e5d7ebd6ffc6ae9043ce0819251a2 /src/gallium/drivers/i965/brw_state_batch.c | |
parent | ebbc73d1aed283c9bc4aa2b37bed4374bbaec5b5 (diff) | |
parent | 0fc4dd3819af252c028ed43bbd668b4f34104e32 (diff) |
Merge branch 'i965g-restart'
Conflicts:
configure.ac
Diffstat (limited to 'src/gallium/drivers/i965/brw_state_batch.c')
-rw-r--r-- | src/gallium/drivers/i965/brw_state_batch.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_state_batch.c b/src/gallium/drivers/i965/brw_state_batch.c new file mode 100644 index 0000000000..7d212e5c24 --- /dev/null +++ b/src/gallium/drivers/i965/brw_state_batch.c @@ -0,0 +1,98 @@ +/* + Copyright (C) Intel Corp. 2006. All Rights Reserved. + Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to + develop this 3D driver. + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice (including the + next paragraph) shall be included in all copies or substantial + portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + **********************************************************************/ + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + + +#include "brw_state.h" +#include "brw_batchbuffer.h" + + + +/* A facility similar to the data caching code above, which aims to + * prevent identical commands being issued repeatedly. + */ +GLboolean brw_cached_batch_struct( struct brw_context *brw, + const void *data, + GLuint sz ) +{ + struct brw_cached_batch_item *item = brw->cached_batch_items; + struct header *newheader = (struct header *)data; + + if (brw->flags.always_emit_state) { + brw_batchbuffer_data(brw->batch, data, sz, IGNORE_CLIPRECTS); + return GL_TRUE; + } + + while (item) { + if (item->header->opcode == newheader->opcode) { + if (item->sz == sz && memcmp(item->header, newheader, sz) == 0) + return GL_FALSE; + if (item->sz != sz) { + FREE(item->header); + item->header = MALLOC(sz); + item->sz = sz; + } + goto emit; + } + item = item->next; + } + + assert(!item); + item = CALLOC_STRUCT(brw_cached_batch_item); + item->header = MALLOC(sz); + item->sz = sz; + item->next = brw->cached_batch_items; + brw->cached_batch_items = item; + + emit: + memcpy(item->header, newheader, sz); + brw_batchbuffer_data(brw->batch, data, sz, IGNORE_CLIPRECTS); + return GL_TRUE; +} + +void brw_clear_batch_cache( struct brw_context *brw ) +{ + struct brw_cached_batch_item *item = brw->cached_batch_items; + + while (item) { + struct brw_cached_batch_item *next = item->next; + free((void *)item->header); + free(item); + item = next; + } + + brw->cached_batch_items = NULL; +} + +void brw_destroy_batch_cache( struct brw_context *brw ) +{ + brw_clear_batch_cache(brw); +} |