diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_msaa.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_atom_msaa.c | 166 |
1 files changed, 83 insertions, 83 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_msaa.c b/mesalib/src/mesa/state_tracker/st_atom_msaa.c index 73f0ff160..ea9eb9a6d 100644 --- a/mesalib/src/mesa/state_tracker/st_atom_msaa.c +++ b/mesalib/src/mesa/state_tracker/st_atom_msaa.c @@ -1,83 +1,83 @@ -/**************************************************************************
- *
- * Copyright 2010 VMware, Inc.
- * All Rights Reserved.
- *
- * 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, sub license, 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS 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.
- *
- **************************************************************************/
-
-
-#include "st_context.h"
-#include "pipe/p_context.h"
-#include "st_atom.h"
-
-#include "cso_cache/cso_context.h"
-
-
-/* Second state atom for user clip planes:
- */
-static void update_sample_mask( struct st_context *st )
-{
- unsigned sample_mask = 0xffffffff;
- unsigned sample_count = 1;
- struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer;
-
- /* dependency here on bound surface (or rather, sample count) is worrying */
- if (framebuffer->zsbuf)
- sample_count = framebuffer->zsbuf->texture->nr_samples;
- else if (framebuffer->cbufs[0])
- sample_count = framebuffer->cbufs[0]->texture->nr_samples;
-
- if (st->ctx->Multisample.Enabled && sample_count > 1) {
- /* unlike in gallium/d3d10 the mask is only active if msaa is enabled */
- if (st->ctx->Multisample.SampleCoverage) {
- unsigned nr_bits;
- nr_bits = st->ctx->Multisample.SampleCoverageValue * (float)sample_count;
- /* there's lot of ways how to do this. We just use first few bits,
- since we have no knowledge of sample positions here. When
- app-supplied mask though is used too might need to be smarter.
- Also, there's a interface restriction here in theory it is
- encouraged this mask not be the same at each pixel. */
- sample_mask = (1 << nr_bits) - 1;
- if (st->ctx->Multisample.SampleCoverageInvert)
- sample_mask = ~sample_mask;
- }
- /* TODO merge with app-supplied sample mask */
- }
-
- /* mask off unused bits or don't care? */
-
- if (sample_mask != st->state.sample_mask) {
- st->state.sample_mask = sample_mask;
- cso_set_sample_mask(st->cso_context, sample_mask);
- }
-}
-
-
-const struct st_tracked_state st_update_msaa = {
- "st_update_msaa", /* name */
- { /* dirty */
- (_NEW_MULTISAMPLE | _NEW_BUFFERS), /* mesa */
- ST_NEW_FRAMEBUFFER, /* st */
- },
- update_sample_mask /* update */
-};
+/************************************************************************** + * + * Copyright 2010 VMware, Inc. + * All Rights Reserved. + * + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS 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. + * + **************************************************************************/ + + +#include "st_context.h" +#include "pipe/p_context.h" +#include "st_atom.h" + +#include "cso_cache/cso_context.h" + + +/* Second state atom for user clip planes: + */ +static void update_sample_mask( struct st_context *st ) +{ + unsigned sample_mask = 0xffffffff; + unsigned sample_count = 1; + struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer; + + /* dependency here on bound surface (or rather, sample count) is worrying */ + if (framebuffer->zsbuf) + sample_count = framebuffer->zsbuf->texture->nr_samples; + else if (framebuffer->cbufs[0]) + sample_count = framebuffer->cbufs[0]->texture->nr_samples; + + if (st->ctx->Multisample.Enabled && sample_count > 1) { + /* unlike in gallium/d3d10 the mask is only active if msaa is enabled */ + if (st->ctx->Multisample.SampleCoverage) { + unsigned nr_bits; + nr_bits = st->ctx->Multisample.SampleCoverageValue * (float)sample_count; + /* there's lot of ways how to do this. We just use first few bits, + since we have no knowledge of sample positions here. When + app-supplied mask though is used too might need to be smarter. + Also, there's a interface restriction here in theory it is + encouraged this mask not be the same at each pixel. */ + sample_mask = (1 << nr_bits) - 1; + if (st->ctx->Multisample.SampleCoverageInvert) + sample_mask = ~sample_mask; + } + /* TODO merge with app-supplied sample mask */ + } + + /* mask off unused bits or don't care? */ + + if (sample_mask != st->state.sample_mask) { + st->state.sample_mask = sample_mask; + cso_set_sample_mask(st->cso_context, sample_mask); + } +} + + +const struct st_tracked_state st_update_msaa = { + "st_update_msaa", /* name */ + { /* dirty */ + (_NEW_MULTISAMPLE | _NEW_BUFFERS), /* mesa */ + ST_NEW_FRAMEBUFFER, /* st */ + }, + update_sample_mask /* update */ +}; |