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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /* |
| 2 | * Copyright © 2012 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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| 21 | * IN THE SOFTWARE. |
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| 22 | */ |
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| 23 | |||
| 24 | #include "intel_batchbuffer.h" |
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| 25 | |||
| 26 | #include "brw_context.h" |
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| 27 | #include "brw_defines.h" |
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| 28 | #include "brw_multisample_state.h" |
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| 29 | |||
| 30 | /** |
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| 31 | * 3DSTATE_MULTISAMPLE |
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| 32 | */ |
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| 33 | void |
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| 34 | gen8_emit_3dstate_multisample(struct brw_context *brw, unsigned num_samples) |
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| 35 | { |
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| 36 | assert(num_samples <= 16); |
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| 37 | |||
| 38 | unsigned log2_samples = ffs(MAX2(num_samples, 1)) - 1; |
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| 39 | |||
| 40 | BEGIN_BATCH(2); |
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| 41 | OUT_BATCH(GEN8_3DSTATE_MULTISAMPLE << 16 | (2 - 2)); |
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| 42 | OUT_BATCH(MS_PIXEL_LOCATION_CENTER | log2_samples << 1); |
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| 43 | ADVANCE_BATCH(); |
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| 44 | } |
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| 45 | |||
| 46 | /** |
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| 47 | * 3DSTATE_SAMPLE_PATTERN |
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| 48 | */ |
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| 49 | void |
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| 50 | gen8_emit_3dstate_sample_pattern(struct brw_context *brw) |
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| 51 | { |
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| 52 | BEGIN_BATCH(9); |
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| 53 | OUT_BATCH(_3DSTATE_SAMPLE_PATTERN << 16 | (9 - 2)); |
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| 54 | |||
| 55 | /* 16x MSAA |
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| 56 | * XXX: Need to program these. |
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| 57 | */ |
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| 58 | OUT_BATCH(0); |
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| 59 | OUT_BATCH(0); |
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| 60 | OUT_BATCH(0); |
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| 61 | OUT_BATCH(0); |
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| 62 | |||
| 63 | /* 8x MSAA */ |
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| 64 | OUT_BATCH(brw_multisample_positions_8x[1]); /* sample positions 7654 */ |
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| 65 | OUT_BATCH(brw_multisample_positions_8x[0]); /* sample positions 3210 */ |
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| 66 | |||
| 67 | /* 4x MSAA */ |
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| 68 | OUT_BATCH(brw_multisample_positions_4x); |
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| 69 | |||
| 70 | /* 1x and 2x MSAA */ |
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| 71 | OUT_BATCH(brw_multisample_positions_1x_2x); |
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| 72 | ADVANCE_BATCH(); |
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| 73 | } |
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| 74 | |||
| 75 | |||
| 76 | static void |
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| 77 | upload_multisample_state(struct brw_context *brw) |
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| 78 | { |
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| 79 | gen8_emit_3dstate_multisample(brw, brw->num_samples); |
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| 80 | gen6_emit_3dstate_sample_mask(brw, gen6_determine_sample_mask(brw)); |
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| 81 | } |
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| 82 | |||
| 83 | const struct brw_tracked_state gen8_multisample_state = { |
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| 84 | .dirty = { |
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| 85 | .mesa = _NEW_MULTISAMPLE, |
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| 86 | .brw = BRW_NEW_CONTEXT | |
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| 87 | BRW_NEW_NUM_SAMPLES, |
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| 88 | }, |
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| 89 | .emit = upload_multisample_state |
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| 90 | }; |