| 0,0 → 1,250 |
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| /* |
| * Copyright 2014 Advanced Micro Devices, Inc. |
| * |
| * 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 AUTHORS OR COPYRIGHT HOLDERS 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: Marek Olšák <maraeo@gmail.com> |
| * |
| */ |
| |
| #include "r600_cs.h" |
| |
| /* 2xMSAA |
| * There are two locations (-4, 4), (4, -4). */ |
| const uint32_t eg_sample_locs_2x[4] = { |
| FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4), |
| FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4), |
| FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4), |
| FILL_SREG(-4, 4, 4, -4, -4, 4, 4, -4), |
| }; |
| const unsigned eg_max_dist_2x = 4; |
| /* 4xMSAA |
| * There are 4 locations: (-2, -2), (2, 2), (-6, 6), (6, -6). */ |
| const uint32_t eg_sample_locs_4x[4] = { |
| FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6), |
| FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6), |
| FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6), |
| FILL_SREG(-2, -2, 2, 2, -6, 6, 6, -6), |
| }; |
| const unsigned eg_max_dist_4x = 6; |
| |
| /* Cayman 8xMSAA */ |
| static const uint32_t cm_sample_locs_8x[] = { |
| FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2), |
| FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2), |
| FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2), |
| FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2), |
| FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4), |
| FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4), |
| FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4), |
| FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4), |
| }; |
| static const unsigned cm_max_dist_8x = 8; |
| /* Cayman 16xMSAA */ |
| static const uint32_t cm_sample_locs_16x[] = { |
| FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5), |
| FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5), |
| FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5), |
| FILL_SREG(-7, -3, 7, 3, 1, -5, -5, 5), |
| FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1), |
| FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1), |
| FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1), |
| FILL_SREG(-3, -7, 3, 7, 5, -1, -1, 1), |
| FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6), |
| FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6), |
| FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6), |
| FILL_SREG(-8, -6, 4, 2, 2, -8, -2, 6), |
| FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0), |
| FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0), |
| FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0), |
| FILL_SREG(-4, -2, 0, 4, 6, -4, -6, 0), |
| }; |
| static const unsigned cm_max_dist_16x = 8; |
| |
| void cayman_get_sample_position(struct pipe_context *ctx, unsigned sample_count, |
| unsigned sample_index, float *out_value) |
| { |
| int offset, index; |
| struct { |
| int idx:4; |
| } val; |
| switch (sample_count) { |
| case 1: |
| default: |
| out_value[0] = out_value[1] = 0.5; |
| break; |
| case 2: |
| offset = 4 * (sample_index * 2); |
| val.idx = (eg_sample_locs_2x[0] >> offset) & 0xf; |
| out_value[0] = (float)(val.idx + 8) / 16.0f; |
| val.idx = (eg_sample_locs_2x[0] >> (offset + 4)) & 0xf; |
| out_value[1] = (float)(val.idx + 8) / 16.0f; |
| break; |
| case 4: |
| offset = 4 * (sample_index * 2); |
| val.idx = (eg_sample_locs_4x[0] >> offset) & 0xf; |
| out_value[0] = (float)(val.idx + 8) / 16.0f; |
| val.idx = (eg_sample_locs_4x[0] >> (offset + 4)) & 0xf; |
| out_value[1] = (float)(val.idx + 8) / 16.0f; |
| break; |
| case 8: |
| offset = 4 * (sample_index % 4 * 2); |
| index = (sample_index / 4) * 4; |
| val.idx = (cm_sample_locs_8x[index] >> offset) & 0xf; |
| out_value[0] = (float)(val.idx + 8) / 16.0f; |
| val.idx = (cm_sample_locs_8x[index] >> (offset + 4)) & 0xf; |
| out_value[1] = (float)(val.idx + 8) / 16.0f; |
| break; |
| case 16: |
| offset = 4 * (sample_index % 4 * 2); |
| index = (sample_index / 4) * 4; |
| val.idx = (cm_sample_locs_16x[index] >> offset) & 0xf; |
| out_value[0] = (float)(val.idx + 8) / 16.0f; |
| val.idx = (cm_sample_locs_16x[index] >> (offset + 4)) & 0xf; |
| out_value[1] = (float)(val.idx + 8) / 16.0f; |
| break; |
| } |
| } |
| |
| void cayman_init_msaa(struct pipe_context *ctx) |
| { |
| struct r600_common_context *rctx = (struct r600_common_context*)ctx; |
| int i; |
| |
| cayman_get_sample_position(ctx, 1, 0, rctx->sample_locations_1x[0]); |
| |
| for (i = 0; i < 2; i++) |
| cayman_get_sample_position(ctx, 2, i, rctx->sample_locations_2x[i]); |
| for (i = 0; i < 4; i++) |
| cayman_get_sample_position(ctx, 4, i, rctx->sample_locations_4x[i]); |
| for (i = 0; i < 8; i++) |
| cayman_get_sample_position(ctx, 8, i, rctx->sample_locations_8x[i]); |
| for (i = 0; i < 16; i++) |
| cayman_get_sample_position(ctx, 16, i, rctx->sample_locations_16x[i]); |
| } |
| |
| void cayman_emit_msaa_sample_locs(struct radeon_winsys_cs *cs, int nr_samples) |
| { |
| switch (nr_samples) { |
| case 2: |
| r600_write_context_reg(cs, CM_R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, eg_sample_locs_2x[0]); |
| r600_write_context_reg(cs, CM_R_028C08_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y0_0, eg_sample_locs_2x[1]); |
| r600_write_context_reg(cs, CM_R_028C18_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y1_0, eg_sample_locs_2x[2]); |
| r600_write_context_reg(cs, CM_R_028C28_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y1_0, eg_sample_locs_2x[3]); |
| break; |
| case 4: |
| r600_write_context_reg(cs, CM_R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, eg_sample_locs_4x[0]); |
| r600_write_context_reg(cs, CM_R_028C08_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y0_0, eg_sample_locs_4x[1]); |
| r600_write_context_reg(cs, CM_R_028C18_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y1_0, eg_sample_locs_4x[2]); |
| r600_write_context_reg(cs, CM_R_028C28_PA_SC_AA_SAMPLE_LOCS_PIXEL_X1Y1_0, eg_sample_locs_4x[3]); |
| break; |
| case 8: |
| r600_write_context_reg_seq(cs, CM_R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 14); |
| radeon_emit(cs, cm_sample_locs_8x[0]); |
| radeon_emit(cs, cm_sample_locs_8x[4]); |
| radeon_emit(cs, 0); |
| radeon_emit(cs, 0); |
| radeon_emit(cs, cm_sample_locs_8x[1]); |
| radeon_emit(cs, cm_sample_locs_8x[5]); |
| radeon_emit(cs, 0); |
| radeon_emit(cs, 0); |
| radeon_emit(cs, cm_sample_locs_8x[2]); |
| radeon_emit(cs, cm_sample_locs_8x[6]); |
| radeon_emit(cs, 0); |
| radeon_emit(cs, 0); |
| radeon_emit(cs, cm_sample_locs_8x[3]); |
| radeon_emit(cs, cm_sample_locs_8x[7]); |
| break; |
| case 16: |
| r600_write_context_reg_seq(cs, CM_R_028BF8_PA_SC_AA_SAMPLE_LOCS_PIXEL_X0Y0_0, 16); |
| radeon_emit(cs, cm_sample_locs_16x[0]); |
| radeon_emit(cs, cm_sample_locs_16x[4]); |
| radeon_emit(cs, cm_sample_locs_16x[8]); |
| radeon_emit(cs, cm_sample_locs_16x[12]); |
| radeon_emit(cs, cm_sample_locs_16x[1]); |
| radeon_emit(cs, cm_sample_locs_16x[5]); |
| radeon_emit(cs, cm_sample_locs_16x[9]); |
| radeon_emit(cs, cm_sample_locs_16x[13]); |
| radeon_emit(cs, cm_sample_locs_16x[2]); |
| radeon_emit(cs, cm_sample_locs_16x[6]); |
| radeon_emit(cs, cm_sample_locs_16x[10]); |
| radeon_emit(cs, cm_sample_locs_16x[14]); |
| radeon_emit(cs, cm_sample_locs_16x[3]); |
| radeon_emit(cs, cm_sample_locs_16x[7]); |
| radeon_emit(cs, cm_sample_locs_16x[11]); |
| radeon_emit(cs, cm_sample_locs_16x[15]); |
| break; |
| } |
| } |
| |
| void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples, |
| int ps_iter_samples, int overrast_samples) |
| { |
| int setup_samples = nr_samples > 1 ? nr_samples : |
| overrast_samples > 1 ? overrast_samples : 0; |
| |
| if (setup_samples > 1) { |
| /* indexed by log2(nr_samples) */ |
| unsigned max_dist[] = { |
| 0, |
| eg_max_dist_2x, |
| eg_max_dist_4x, |
| cm_max_dist_8x, |
| cm_max_dist_16x |
| }; |
| unsigned log_samples = util_logbase2(setup_samples); |
| unsigned log_ps_iter_samples = |
| util_logbase2(util_next_power_of_two(ps_iter_samples)); |
| |
| r600_write_context_reg_seq(cs, CM_R_028BDC_PA_SC_LINE_CNTL, 2); |
| radeon_emit(cs, S_028BDC_LAST_PIXEL(1) | |
| S_028BDC_EXPAND_LINE_WIDTH(1)); /* CM_R_028BDC_PA_SC_LINE_CNTL */ |
| radeon_emit(cs, S_028BE0_MSAA_NUM_SAMPLES(log_samples) | |
| S_028BE0_MAX_SAMPLE_DIST(max_dist[log_samples]) | |
| S_028BE0_MSAA_EXPOSED_SAMPLES(log_samples)); /* CM_R_028BE0_PA_SC_AA_CONFIG */ |
| |
| if (nr_samples > 1) { |
| r600_write_context_reg(cs, CM_R_028804_DB_EQAA, |
| S_028804_MAX_ANCHOR_SAMPLES(log_samples) | |
| S_028804_PS_ITER_SAMPLES(log_ps_iter_samples) | |
| S_028804_MASK_EXPORT_NUM_SAMPLES(log_samples) | |
| S_028804_ALPHA_TO_MASK_NUM_SAMPLES(log_samples) | |
| S_028804_HIGH_QUALITY_INTERSECTIONS(1) | |
| S_028804_STATIC_ANCHOR_ASSOCIATIONS(1)); |
| r600_write_context_reg(cs, EG_R_028A4C_PA_SC_MODE_CNTL_1, |
| EG_S_028A4C_PS_ITER_SAMPLE(ps_iter_samples > 1)); |
| } else if (overrast_samples > 1) { |
| r600_write_context_reg(cs, CM_R_028804_DB_EQAA, |
| S_028804_HIGH_QUALITY_INTERSECTIONS(1) | |
| S_028804_STATIC_ANCHOR_ASSOCIATIONS(1) | |
| S_028804_OVERRASTERIZATION_AMOUNT(log_samples)); |
| r600_write_context_reg(cs, EG_R_028A4C_PA_SC_MODE_CNTL_1, 0); |
| } |
| } else { |
| r600_write_context_reg_seq(cs, CM_R_028BDC_PA_SC_LINE_CNTL, 2); |
| radeon_emit(cs, S_028BDC_LAST_PIXEL(1)); /* CM_R_028BDC_PA_SC_LINE_CNTL */ |
| radeon_emit(cs, 0); /* CM_R_028BE0_PA_SC_AA_CONFIG */ |
| |
| r600_write_context_reg(cs, CM_R_028804_DB_EQAA, |
| S_028804_HIGH_QUALITY_INTERSECTIONS(1) | |
| S_028804_STATIC_ANCHOR_ASSOCIATIONS(1)); |
| r600_write_context_reg(cs, EG_R_028A4C_PA_SC_MODE_CNTL_1, 0); |
| } |
| } |