| /* |
| * Copyright (c) 2017 Etnaviv Project |
| * Copyright (C) 2017 Zodiac Inflight Innovations |
| * |
| * 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 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: |
| * Rob Clark <robclark@freedesktop.org> |
| * Christian Gmeiner <christian.gmeiner@gmail.com> |
| */ |
| |
| #include "util/u_inlines.h" |
| #include "util/u_memory.h" |
| |
| #include "etnaviv_context.h" |
| #include "etnaviv_debug.h" |
| #include "etnaviv_emit.h" |
| #include "etnaviv_query_acc.h" |
| #include "etnaviv_screen.h" |
| |
| /* |
| * Occlusion Query: |
| * |
| * OCCLUSION_COUNTER and OCCLUSION_PREDICATE differ only in how they |
| * interpret results |
| */ |
| |
| static bool |
| occlusion_supports(unsigned query_type) |
| { |
| switch (query_type) { |
| case PIPE_QUERY_OCCLUSION_COUNTER: |
| /* fallthrough */ |
| case PIPE_QUERY_OCCLUSION_PREDICATE: |
| /* fallthrough */ |
| case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static struct etna_acc_query * |
| occlusion_allocate(struct etna_context *ctx, ASSERTED unsigned query_type) |
| { |
| return CALLOC_STRUCT(etna_acc_query); |
| } |
| |
| static void |
| occlusion_resume(struct etna_acc_query *aq, struct etna_context *ctx) |
| { |
| struct etna_resource *rsc = etna_resource(aq->prsc); |
| struct etna_reloc r = { |
| .bo = rsc->bo, |
| .flags = ETNA_RELOC_WRITE |
| }; |
| |
| if (aq->samples > 63) { |
| aq->samples = 63; |
| BUG("samples overflow"); |
| } |
| |
| r.offset = aq->samples * 8; /* 64bit value */ |
| |
| etna_set_state_reloc(ctx->stream, VIVS_GL_OCCLUSION_QUERY_ADDR, &r); |
| resource_written(ctx, aq->prsc); |
| } |
| |
| static void |
| occlusion_suspend(struct etna_acc_query *aq, struct etna_context *ctx) |
| { |
| /* 0x1DF5E76 is the value used by blob - but any random value will work */ |
| etna_set_state(ctx->stream, VIVS_GL_OCCLUSION_QUERY_CONTROL, 0x1DF5E76); |
| resource_written(ctx, aq->prsc); |
| } |
| |
| static bool |
| occlusion_result(struct etna_acc_query *aq, void *buf, |
| union pipe_query_result *result) |
| { |
| uint64_t sum = 0; |
| uint64_t *ptr = (uint64_t *)buf; |
| |
| for (unsigned i = 0; i < aq->samples; i++) |
| sum += *(ptr + i); |
| |
| if (aq->base.type == PIPE_QUERY_OCCLUSION_COUNTER) |
| result->u64 = sum; |
| else |
| result->b = !!sum; |
| |
| return true; |
| } |
| |
| const struct etna_acc_sample_provider occlusion_provider = { |
| .supports = occlusion_supports, |
| .allocate = occlusion_allocate, |
| .suspend = occlusion_suspend, |
| .resume = occlusion_resume, |
| .result = occlusion_result, |
| }; |