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shader: detect full buffer fills from uniform stores

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Co-authored-by: Techx3 <56268269+Techx3@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-05 10:34:30 +04:00
parent 994271e2f6
commit dea80f34ca
8 changed files with 422 additions and 43 deletions
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src/graphics/host_gpu/renderer/renderCompute.cpp
+39 -30
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@@ -25,6 +25,7 @@
#include "libs/errno.h"
#include <algorithm>
#include <array>
#include <atomic>
#include <cmath>
#include <cstring>
@@ -82,46 +83,54 @@ bool ResolveComputeImageClear(const ShaderComputeInputInfo& input, uint32_t grou
uint64_t& resolved_size) {
const auto& program = *input.stage.program;
const auto& resources = input.stage.resources;
if (program.info.buffers.size() != 1 || resources.buffers.size() != 1 ||
!program.info.images.empty() || !program.info.samplers.empty() || program.info.uses_dma ||
!resources.images.empty() || !resources.samplers.empty()) {
const auto& fill = resources.buffer_fill;
if (fill.element_size == 0 || fill.element_size > 16 || fill.element_size % 4 != 0 ||
fill.buffer >= resources.buffers.size() ||
resources.buffers.size() != program.info.buffers.size()) {
return false;
}
const auto& resource = program.info.buffers.front();
const auto& raw = resources.buffers.front();
const auto descriptor = DecodeNativeDescriptor<ShaderBufferResource>(raw);
const auto& resource = program.info.buffers[fill.buffer];
const auto& raw = resources.buffers[fill.buffer];
const auto descriptor = DecodeNativeDescriptor<ShaderBufferResource>(raw);
constexpr std::array formats {
Prospero::BufferFormat::k32UInt, Prospero::BufferFormat::k32_32UInt,
Prospero::BufferFormat::k32_32_32UInt, Prospero::BufferFormat::k32_32_32_32UInt};
if (!resource.formatted || !resource.written || resource.read || resource.atomic ||
resource.scalar || resource.max_byte_extent != 16 || descriptor.Stride() != 16 ||
descriptor.Format() != Prospero::BufferFormat::k32_32_32_32UInt ||
descriptor.SwizzleEnabled() || descriptor.IndexStride() != 0 || descriptor.AddTid() ||
resource.scalar || descriptor.Stride() != fill.element_size ||
descriptor.Format() != formats[fill.element_size / 4 - 1] || descriptor.SwizzleEnabled() ||
descriptor.IndexStride() != 0 || descriptor.AddTid() ||
resource.packed_stride != descriptor.PackedStride() || raw.dword_count != 4 ||
program.user_data_base != 0 || resources.user_data.size() != 8) {
descriptor.Base48() == 0) {
return false;
}
for (uint32_t i = 0; i < raw.dword_count; i++) {
if (raw.dwords[i] != resources.user_data[i]) {
if (input.threads_num[0] == 0 || input.threads_num[0] != fill.group_stride ||
input.threads_num[1] != 1 || input.threads_num[2] != 1 || group_x == 0 || group_y != 1 ||
group_z != 1 || mode != (input.dispatch_thread_dimensions ? 0x61u : 0x41u)) {
return false;
}
const uint64_t invocations = input.dispatch_thread_dimensions
? group_x
: static_cast<uint64_t>(group_x) * input.threads_num[0];
const auto size = BufferDescriptorSize(descriptor);
if (invocations != descriptor.NumRecords() || size == 0 || size > UINT32_MAX ||
descriptor.Base48() > UINT64_MAX - size ||
(input.dispatch_thread_dimensions &&
(group_x % input.threads_num[0] != 0 || input.dispatch_threads_num[0] != group_x ||
input.dispatch_threads_num[1] != 1 || input.dispatch_threads_num[2] != 1))) {
return false;
}
for (uint32_t i = 0; i < resources.buffers.size(); ++i) {
if (i == fill.buffer) continue;
const auto source = DecodeNativeDescriptor<ShaderBufferResource>(resources.buffers[i]);
const auto bytes = BufferDescriptorSize(source);
if (source.Base48() > UINT64_MAX - bytes ||
(source.Base48() < descriptor.Base48() + size &&
descriptor.Base48() < source.Base48() + bytes)) {
return false;
}
}
const uint32_t clear = resources.user_data[4];
if (resources.user_data[5] != clear || resources.user_data[6] != clear ||
resources.user_data[7] != clear) {
return false;
}
const bool full_dispatch =
input.dispatch_thread_dimensions && input.threads_num[0] == 64 &&
input.threads_num[1] == 1 && input.threads_num[2] == 1 && group_x != 0 && group_y == 1 &&
group_z == 1 && input.dispatch_threads_num[0] == group_x &&
input.dispatch_threads_num[1] == 1 && input.dispatch_threads_num[2] == 1 &&
input.group_id[0] && !input.group_id[1] && !input.group_id[2] &&
input.thread_ids_num == 1 && input.wave_size == 64 && !input.tg_size_en && mode == 0x61u &&
group_x % input.threads_num[0] == 0 && descriptor.NumRecords() == group_x;
const auto size = BufferDescriptorSize(descriptor);
if (!full_dispatch || size == 0) {
return false;
}
resolved_descriptor = descriptor;
resolved_clear = clear;
resolved_clear = fill.value;
resolved_size = size;
return true;
}