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11 * The above copyright notice and this permission notice (including the next
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24 #include "intel_batchbuffer.h"
26 #include "brw_context.h"
27 #include "brw_defines.h"
28 #include "brw_multisample_state.h"
34 gen8_emit_3dstate_multisample(struct brw_context
*brw
, unsigned num_samples
)
36 uint32_t number_of_multisamples
= 0;
38 switch (num_samples
) {
41 number_of_multisamples
= MS_NUMSAMPLES_1
;
44 number_of_multisamples
= MS_NUMSAMPLES_2
;
47 number_of_multisamples
= MS_NUMSAMPLES_4
;
50 number_of_multisamples
= MS_NUMSAMPLES_8
;
53 number_of_multisamples
= MS_NUMSAMPLES_16
;
56 assert(!"Unrecognized num_samples in gen8_emit_3dstate_multisample");
61 OUT_BATCH(GEN8_3DSTATE_MULTISAMPLE
<< 16 | (2 - 2));
62 OUT_BATCH(MS_PIXEL_LOCATION_CENTER
| number_of_multisamples
);
67 * 3DSTATE_SAMPLE_PATTERN
70 gen8_emit_3dstate_sample_pattern(struct brw_context
*brw
)
73 OUT_BATCH(_3DSTATE_SAMPLE_PATTERN
<< 16 | (9 - 2));
76 * XXX: Need to program these.
84 OUT_BATCH(brw_multisample_positions_8x
[1]); /* sample positions 7654 */
85 OUT_BATCH(brw_multisample_positions_8x
[0]); /* sample positions 3210 */
88 OUT_BATCH(brw_multisample_positions_4x
);
90 /* 2x and 1x MSAA patterns
91 * XXX: need to program 2x.
93 OUT_BATCH(0x00880000);
99 upload_multisample_state(struct brw_context
*brw
)
101 struct gl_context
*ctx
= &brw
->ctx
;
103 /* _NEW_BUFFERS, _NEW_MULTISAMPLE */
104 unsigned num_samples
= ctx
->DrawBuffer
->Visual
.samples
;
106 gen8_emit_3dstate_multisample(brw
, num_samples
);
107 gen6_emit_3dstate_sample_mask(brw
, gen6_determine_sample_mask(brw
));
110 const struct brw_tracked_state gen8_multisample_state
= {
112 .mesa
= _NEW_BUFFERS
| _NEW_MULTISAMPLE
,
113 .brw
= BRW_NEW_CONTEXT
,
116 .emit
= upload_multisample_state