Do "minmax" on Vulkan compute
Was an attempt to speed up blue-noise-generation with Vulkan compute, but this implementation seems to slow it down instead.
This commit is contained in:
parent
ef7f623fb3
commit
52e6a09abd
3 changed files with 713 additions and 19 deletions
|
|
@ -125,7 +125,8 @@ void dither::internal::vulkan_copy_buffer(VkDevice device,
|
|||
VkCommandPool command_pool,
|
||||
VkQueue queue, VkBuffer src_buf,
|
||||
VkBuffer dst_buf, VkDeviceSize size,
|
||||
VkDeviceSize offset) {
|
||||
VkDeviceSize src_offset,
|
||||
VkDeviceSize dst_offset) {
|
||||
VkCommandBufferAllocateInfo alloc_info{};
|
||||
alloc_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
|
||||
alloc_info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
|
||||
|
|
@ -143,8 +144,8 @@ void dither::internal::vulkan_copy_buffer(VkDevice device,
|
|||
|
||||
VkBufferCopy copy_region{};
|
||||
copy_region.size = size;
|
||||
copy_region.srcOffset = offset;
|
||||
copy_region.dstOffset = offset;
|
||||
copy_region.srcOffset = src_offset;
|
||||
copy_region.dstOffset = dst_offset;
|
||||
vkCmdCopyBuffer(command_buf, src_buf, dst_buf, 1, ©_region);
|
||||
|
||||
vkEndCommandBuffer(command_buf);
|
||||
|
|
@ -269,8 +270,11 @@ std::vector<unsigned int> dither::internal::blue_noise_vulkan_impl(
|
|||
VkDevice device, VkPhysicalDevice phys_device,
|
||||
VkCommandBuffer command_buffer, VkCommandPool command_pool, VkQueue queue,
|
||||
VkBuffer pbp_buf, VkPipeline pipeline, VkPipelineLayout pipeline_layout,
|
||||
VkDescriptorSet descriptor_set, VkBuffer filter_out_buf, const int width,
|
||||
const int height) {
|
||||
VkDescriptorSet descriptor_set, VkBuffer filter_out_buf,
|
||||
VkPipeline minmax_pipeline, VkPipelineLayout minmax_pipeline_layout,
|
||||
VkDescriptorSet minmax_descriptor_set, VkBuffer max_in_buf,
|
||||
VkBuffer min_in_buf, VkBuffer max_out_buf, VkBuffer min_out_buf,
|
||||
VkBuffer state_buf, const int width, const int height) {
|
||||
const int size = width * height;
|
||||
const int pixel_count = size * 4 / 10;
|
||||
const int local_size = 256;
|
||||
|
|
@ -401,8 +405,25 @@ std::vector<unsigned int> dither::internal::blue_noise_vulkan_impl(
|
|||
}
|
||||
|
||||
int min, max;
|
||||
std::tie(min, max) =
|
||||
internal::filter_minmax_raw_array(filter_mapped_float, size, pbp);
|
||||
auto vulkan_minmax_opt = vulkan_minmax(
|
||||
device, phys_device, command_buffer, command_pool, queue,
|
||||
minmax_pipeline, minmax_pipeline_layout, minmax_descriptor_set,
|
||||
max_in_buf, min_in_buf, max_out_buf, min_out_buf, state_buf, size,
|
||||
filter_mapped_float, pbp);
|
||||
if (!vulkan_minmax_opt.has_value()) {
|
||||
std::cerr << "Vulkan: vulkan_minmax returned nullopt!\n";
|
||||
return {};
|
||||
}
|
||||
std::tie(min, max) = vulkan_minmax_opt.value();
|
||||
#ifndef NDEBUG
|
||||
std::cout << "vulkan_minmax: " << min << ", " << max << '\n';
|
||||
{
|
||||
int temp_min, temp_max;
|
||||
std::tie(temp_min, temp_max) =
|
||||
filter_minmax_raw_array(filter_mapped_float, size, pbp);
|
||||
std::cout << " minmax: " << temp_min << ", " << temp_max << '\n';
|
||||
}
|
||||
#endif
|
||||
|
||||
pbp[max] = false;
|
||||
|
||||
|
|
@ -421,8 +442,16 @@ std::vector<unsigned int> dither::internal::blue_noise_vulkan_impl(
|
|||
|
||||
// get second buffer's min
|
||||
int second_min;
|
||||
std::tie(second_min, std::ignore) =
|
||||
internal::filter_minmax_raw_array(filter_mapped_float, size, pbp);
|
||||
vulkan_minmax_opt = vulkan_minmax(
|
||||
device, phys_device, command_buffer, command_pool, queue,
|
||||
minmax_pipeline, minmax_pipeline_layout, minmax_descriptor_set,
|
||||
max_in_buf, min_in_buf, max_out_buf, min_out_buf, state_buf, size,
|
||||
filter_mapped_float, pbp);
|
||||
if (!vulkan_minmax_opt.has_value()) {
|
||||
std::cerr << "Vulkan: vulkan_minmax returned nullopt!\n";
|
||||
return {};
|
||||
}
|
||||
std::tie(second_min, std::ignore) = vulkan_minmax_opt.value();
|
||||
|
||||
if (second_min == max) {
|
||||
pbp[max] = true;
|
||||
|
|
@ -502,8 +531,16 @@ std::vector<unsigned int> dither::internal::blue_noise_vulkan_impl(
|
|||
global_size, pbp_mapped_int, staging_pbp_buffer,
|
||||
staging_pbp_buffer_mem, staging_filter_buffer_mem,
|
||||
staging_filter_buffer, &changed_indices);
|
||||
std::tie(std::ignore, max) =
|
||||
internal::filter_minmax_raw_array(filter_mapped_float, size, pbp);
|
||||
auto vulkan_minmax_opt = vulkan_minmax(
|
||||
device, phys_device, command_buffer, command_pool, queue,
|
||||
minmax_pipeline, minmax_pipeline_layout, minmax_descriptor_set,
|
||||
max_in_buf, min_in_buf, max_out_buf, min_out_buf, state_buf, size,
|
||||
filter_mapped_float, pbp);
|
||||
if (!vulkan_minmax_opt.has_value()) {
|
||||
std::cerr << "Vulkan: vulkan_minmax returned nullopt!\n";
|
||||
return {};
|
||||
}
|
||||
std::tie(std::ignore, max) = vulkan_minmax_opt.value();
|
||||
pbp.at(max) = false;
|
||||
dither_array.at(max) = i;
|
||||
changed_indices.push_back(max);
|
||||
|
|
@ -532,8 +569,16 @@ std::vector<unsigned int> dither::internal::blue_noise_vulkan_impl(
|
|||
pbp_mapped_int, staging_pbp_buffer,
|
||||
staging_pbp_buffer_mem, staging_filter_buffer_mem,
|
||||
staging_filter_buffer, &changed_indices);
|
||||
std::tie(min, std::ignore) =
|
||||
internal::filter_minmax_raw_array(filter_mapped_float, size, pbp);
|
||||
auto vulkan_minmax_opt = vulkan_minmax(
|
||||
device, phys_device, command_buffer, command_pool, queue,
|
||||
minmax_pipeline, minmax_pipeline_layout, minmax_descriptor_set,
|
||||
max_in_buf, min_in_buf, max_out_buf, min_out_buf, state_buf, size,
|
||||
filter_mapped_float, pbp);
|
||||
if (!vulkan_minmax_opt.has_value()) {
|
||||
std::cerr << "Vulkan: vulkan_minmax returned nullopt!\n";
|
||||
return {};
|
||||
}
|
||||
std::tie(min, std::ignore) = vulkan_minmax_opt.value();
|
||||
pbp.at(min) = true;
|
||||
dither_array.at(min) = i;
|
||||
changed_indices.push_back(min);
|
||||
|
|
@ -578,8 +623,16 @@ std::vector<unsigned int> dither::internal::blue_noise_vulkan_impl(
|
|||
pbp_mapped_int, staging_pbp_buffer,
|
||||
staging_pbp_buffer_mem, staging_filter_buffer_mem,
|
||||
staging_filter_buffer, &changed_indices);
|
||||
std::tie(std::ignore, max) =
|
||||
internal::filter_minmax_raw_array(filter_mapped_float, size, pbp);
|
||||
auto vulkan_minmax_opt = vulkan_minmax(
|
||||
device, phys_device, command_buffer, command_pool, queue,
|
||||
minmax_pipeline, minmax_pipeline_layout, minmax_descriptor_set,
|
||||
max_in_buf, min_in_buf, max_out_buf, min_out_buf, state_buf, size,
|
||||
filter_mapped_float, pbp);
|
||||
if (!vulkan_minmax_opt.has_value()) {
|
||||
std::cerr << "Vulkan: vulkan_minmax returned nullopt!\n";
|
||||
return {};
|
||||
}
|
||||
std::tie(std::ignore, max) = vulkan_minmax_opt.value();
|
||||
pbp.at(max) = true;
|
||||
dither_array.at(max) = i;
|
||||
changed_indices.push_back(max);
|
||||
|
|
@ -620,6 +673,182 @@ std::vector<float> dither::internal::vulkan_buf_to_vec(float *mapped,
|
|||
return v;
|
||||
}
|
||||
|
||||
std::optional<std::pair<int, int>> dither::internal::vulkan_minmax(
|
||||
VkDevice device, VkPhysicalDevice phys_dev, VkCommandBuffer command_buffer,
|
||||
VkCommandPool command_pool, VkQueue queue, VkPipeline minmax_pipeline,
|
||||
VkPipelineLayout minmax_pipeline_layout,
|
||||
VkDescriptorSet minmax_descriptor_set, VkBuffer max_in_buf,
|
||||
VkBuffer min_in_buf, VkBuffer max_out_buf, VkBuffer min_out_buf,
|
||||
VkBuffer state_buf, const int size, const float *const filter_mapped,
|
||||
std::vector<bool> pbp) {
|
||||
// ensure minority pixel is "true"
|
||||
unsigned int count = 0;
|
||||
for (bool value : pbp) {
|
||||
if (value) {
|
||||
++count;
|
||||
}
|
||||
}
|
||||
if (count * 2 >= pbp.size()) {
|
||||
// std::cout << "MINMAX flip\n"; // DEBUG
|
||||
for (unsigned int i = 0; i < pbp.size(); ++i) {
|
||||
pbp[i] = !pbp[i];
|
||||
}
|
||||
}
|
||||
|
||||
std::vector<FloatAndIndex> fai(size);
|
||||
for (int i = 0; i < size; ++i) {
|
||||
fai[i].value = filter_mapped[i];
|
||||
fai[i].pbp = pbp[i] ? 1 : 0;
|
||||
fai[i].idx = i;
|
||||
}
|
||||
|
||||
VkBuffer staging_buf;
|
||||
VkDeviceMemory staging_buf_mem;
|
||||
utility::Cleanup cleanup_staging_buf{};
|
||||
utility::Cleanup cleanup_staging_buf_mem{};
|
||||
void *staging_mapped;
|
||||
utility::Cleanup cleanup_staging_buf_mem_mapped{};
|
||||
VkMappedMemoryRange range{};
|
||||
VkPhysicalDeviceProperties props;
|
||||
vkGetPhysicalDeviceProperties(phys_dev, &props);
|
||||
{
|
||||
vulkan_create_buffer(
|
||||
device, phys_dev, size * sizeof(FloatAndIndex),
|
||||
VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
||||
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
|
||||
VK_MEMORY_PROPERTY_HOST_CACHED_BIT,
|
||||
staging_buf, staging_buf_mem);
|
||||
cleanup_staging_buf = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
|
||||
},
|
||||
&staging_buf);
|
||||
cleanup_staging_buf_mem = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
|
||||
},
|
||||
&staging_buf_mem);
|
||||
|
||||
vkMapMemory(device, staging_buf_mem, 0, size * sizeof(FloatAndIndex), 0,
|
||||
&staging_mapped);
|
||||
cleanup_staging_buf_mem_mapped = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkUnmapMemory(device, *((VkDeviceMemory *)ptr));
|
||||
},
|
||||
&staging_buf_mem);
|
||||
std::memcpy(staging_mapped, fai.data(), size * sizeof(FloatAndIndex));
|
||||
range.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
|
||||
range.memory = staging_buf_mem;
|
||||
range.size = VK_WHOLE_SIZE;
|
||||
range.offset = 0;
|
||||
range.pNext = nullptr;
|
||||
|
||||
vkFlushMappedMemoryRanges(device, 1, &range);
|
||||
|
||||
vulkan_copy_buffer(device, command_pool, queue, staging_buf, max_in_buf,
|
||||
size * sizeof(FloatAndIndex));
|
||||
vulkan_copy_buffer(device, command_pool, queue, staging_buf, min_in_buf,
|
||||
size * sizeof(FloatAndIndex));
|
||||
|
||||
fai[0].idx = size;
|
||||
std::memcpy(staging_mapped, &fai[0].idx, sizeof(int));
|
||||
|
||||
if (sizeof(int) < props.limits.nonCoherentAtomSize) {
|
||||
range.size = props.limits.nonCoherentAtomSize;
|
||||
} else if (sizeof(int) > props.limits.nonCoherentAtomSize) {
|
||||
range.size = ((int)std::ceil((float)sizeof(int) /
|
||||
(float)props.limits.nonCoherentAtomSize)) *
|
||||
props.limits.nonCoherentAtomSize;
|
||||
} else {
|
||||
range.size = props.limits.nonCoherentAtomSize;
|
||||
}
|
||||
vkFlushMappedMemoryRanges(device, 1, &range);
|
||||
|
||||
vulkan_copy_buffer(device, command_pool, queue, staging_buf, state_buf,
|
||||
sizeof(int));
|
||||
}
|
||||
|
||||
int current_size = size;
|
||||
int next_size;
|
||||
while (current_size > 1) {
|
||||
next_size = (current_size + 1) / 2;
|
||||
vkResetCommandBuffer(command_buffer, 0);
|
||||
|
||||
VkCommandBufferBeginInfo begin_info{};
|
||||
begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
|
||||
|
||||
if (vkBeginCommandBuffer(command_buffer, &begin_info) != VK_SUCCESS) {
|
||||
std::clog << "vulkan_minmax ERROR: Failed to begin record compute "
|
||||
"command buffer!\n";
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE,
|
||||
minmax_pipeline);
|
||||
vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE,
|
||||
minmax_pipeline_layout, 0, 1,
|
||||
&minmax_descriptor_set, 0, nullptr);
|
||||
vkCmdDispatch(command_buffer, std::ceil((float)next_size / 256.0F), 1, 1);
|
||||
if (vkEndCommandBuffer(command_buffer) != VK_SUCCESS) {
|
||||
std::clog
|
||||
<< "vulkan_minmax ERROR: Failed to record compute command buffer!\n";
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
VkSubmitInfo submit_info{};
|
||||
submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
|
||||
submit_info.commandBufferCount = 1;
|
||||
submit_info.pCommandBuffers = &command_buffer;
|
||||
submit_info.signalSemaphoreCount = 0;
|
||||
submit_info.pSignalSemaphores = nullptr;
|
||||
|
||||
if (vkQueueSubmit(queue, 1, &submit_info, nullptr) != VK_SUCCESS) {
|
||||
std::clog
|
||||
<< "vulkan_minmax ERROR: Failed to submit compute command buffer!\n";
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
if (vkDeviceWaitIdle(device) != VK_SUCCESS) {
|
||||
std::clog << "vulkan_minmax ERROR: Failed to vkDeviceWaitIdle!\n";
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
if (next_size > 1) {
|
||||
vulkan_copy_buffer(device, command_pool, queue, max_out_buf, max_in_buf,
|
||||
next_size * sizeof(FloatAndIndex));
|
||||
vulkan_copy_buffer(device, command_pool, queue, min_out_buf, min_in_buf,
|
||||
next_size * sizeof(FloatAndIndex));
|
||||
|
||||
fai[0].idx = next_size;
|
||||
std::memcpy(staging_mapped, &fai[0].idx, sizeof(int));
|
||||
vkFlushMappedMemoryRanges(device, 1, &range);
|
||||
vulkan_copy_buffer(device, command_pool, queue, staging_buf, state_buf,
|
||||
sizeof(int));
|
||||
}
|
||||
|
||||
current_size = next_size;
|
||||
}
|
||||
|
||||
vulkan_copy_buffer(device, command_pool, queue, min_out_buf, staging_buf,
|
||||
sizeof(FloatAndIndex), 0, 0);
|
||||
vulkan_copy_buffer(device, command_pool, queue, max_out_buf, staging_buf,
|
||||
sizeof(FloatAndIndex), 0, sizeof(FloatAndIndex));
|
||||
|
||||
if (sizeof(FloatAndIndex) * 2 < props.limits.nonCoherentAtomSize) {
|
||||
range.size = props.limits.nonCoherentAtomSize;
|
||||
} else if (sizeof(FloatAndIndex) * 2 > props.limits.nonCoherentAtomSize) {
|
||||
range.size = ((int)std::ceil((float)sizeof(FloatAndIndex) * 2.0F /
|
||||
(float)props.limits.nonCoherentAtomSize)) *
|
||||
props.limits.nonCoherentAtomSize;
|
||||
} else {
|
||||
range.size = props.limits.nonCoherentAtomSize;
|
||||
}
|
||||
vkInvalidateMappedMemoryRanges(device, 1, &range);
|
||||
|
||||
return std::make_pair(((FloatAndIndex *)staging_mapped)->idx,
|
||||
(((FloatAndIndex *)staging_mapped) + 1)->idx);
|
||||
}
|
||||
|
||||
#endif // DITHERING_VULKAN_ENABLED == 1
|
||||
|
||||
#include "image.hpp"
|
||||
|
|
@ -979,6 +1208,65 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
&compute_desc_set_layout);
|
||||
}
|
||||
|
||||
VkDescriptorSetLayout minmax_compute_desc_set_layout;
|
||||
utility::Cleanup cleanup_minmax_compute_desc_set_layout{};
|
||||
{
|
||||
std::array<VkDescriptorSetLayoutBinding, 5> compute_layout_bindings{};
|
||||
compute_layout_bindings[0].binding = 0;
|
||||
compute_layout_bindings[0].descriptorCount = 1;
|
||||
compute_layout_bindings[0].descriptorType =
|
||||
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
compute_layout_bindings[0].pImmutableSamplers = nullptr;
|
||||
compute_layout_bindings[0].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
|
||||
|
||||
compute_layout_bindings[1].binding = 1;
|
||||
compute_layout_bindings[1].descriptorCount = 1;
|
||||
compute_layout_bindings[1].descriptorType =
|
||||
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
compute_layout_bindings[1].pImmutableSamplers = nullptr;
|
||||
compute_layout_bindings[1].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
|
||||
|
||||
compute_layout_bindings[2].binding = 2;
|
||||
compute_layout_bindings[2].descriptorCount = 1;
|
||||
compute_layout_bindings[2].descriptorType =
|
||||
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
compute_layout_bindings[2].pImmutableSamplers = nullptr;
|
||||
compute_layout_bindings[2].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
|
||||
|
||||
compute_layout_bindings[3].binding = 3;
|
||||
compute_layout_bindings[3].descriptorCount = 1;
|
||||
compute_layout_bindings[3].descriptorType =
|
||||
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
compute_layout_bindings[3].pImmutableSamplers = nullptr;
|
||||
compute_layout_bindings[3].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
|
||||
|
||||
compute_layout_bindings[4].binding = 4;
|
||||
compute_layout_bindings[4].descriptorCount = 1;
|
||||
compute_layout_bindings[4].descriptorType =
|
||||
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
compute_layout_bindings[4].pImmutableSamplers = nullptr;
|
||||
compute_layout_bindings[4].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT;
|
||||
|
||||
VkDescriptorSetLayoutCreateInfo layout_info{};
|
||||
layout_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
|
||||
layout_info.bindingCount = compute_layout_bindings.size();
|
||||
layout_info.pBindings = compute_layout_bindings.data();
|
||||
|
||||
if (vkCreateDescriptorSetLayout(device, &layout_info, nullptr,
|
||||
&minmax_compute_desc_set_layout) !=
|
||||
VK_SUCCESS) {
|
||||
std::clog << "WARNING: Failed to create compute descriptor set layout "
|
||||
"(minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
cleanup_minmax_compute_desc_set_layout = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkDestroyDescriptorSetLayout(
|
||||
device, *((VkDescriptorSetLayout *)ptr), nullptr);
|
||||
},
|
||||
&minmax_compute_desc_set_layout);
|
||||
}
|
||||
|
||||
// Check and compile compute shader.
|
||||
{
|
||||
std::array<const char *, 3> filenames{
|
||||
|
|
@ -1003,6 +1291,31 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
std::clog << "WARNING: Could not find blue_noise.glsl!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
|
||||
std::array<const char *, 3> minmax_filenames{
|
||||
"blue_noise_minmax.glsl", "src/blue_noise_minmax.glsl",
|
||||
"../src/blue_noise_minmax.glsl"};
|
||||
success = false;
|
||||
for (const auto filename : minmax_filenames) {
|
||||
std::ifstream ifs(filename);
|
||||
if (ifs.good()) {
|
||||
ifs.close();
|
||||
std::string command(
|
||||
"glslc -fshader-stage=compute -o compute_minmax.spv ");
|
||||
command.append(filename);
|
||||
if (std::system(command.c_str()) != 0) {
|
||||
std::clog << "WARNING: Failed to compile " << filename << "!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
} else {
|
||||
success = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!success) {
|
||||
std::clog << "WARNING: Could not find blue_noise_minmax.glsl!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
}
|
||||
|
||||
// create compute pipeline.
|
||||
|
|
@ -1090,6 +1403,92 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
&compute_pipeline);
|
||||
}
|
||||
|
||||
VkPipelineLayout minmax_compute_pipeline_layout;
|
||||
VkPipeline minmax_compute_pipeline;
|
||||
utility::Cleanup cleanup_minmax_pipeline_layout{};
|
||||
utility::Cleanup cleanup_minmax_pipeline{};
|
||||
{
|
||||
// Load shader.
|
||||
std::vector<char> shader;
|
||||
{
|
||||
std::ifstream ifs("compute_minmax.spv");
|
||||
if (!ifs.good()) {
|
||||
std::clog << "WARNING: Failed to find compute_minmax.spv!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
ifs.seekg(0, std::ios_base::end);
|
||||
auto size = ifs.tellg();
|
||||
shader.resize(size);
|
||||
|
||||
ifs.seekg(0);
|
||||
ifs.read(shader.data(), size);
|
||||
ifs.close();
|
||||
}
|
||||
|
||||
VkShaderModuleCreateInfo shader_module_create_info{};
|
||||
shader_module_create_info.sType =
|
||||
VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
|
||||
shader_module_create_info.codeSize = shader.size();
|
||||
shader_module_create_info.pCode =
|
||||
reinterpret_cast<const uint32_t *>(shader.data());
|
||||
|
||||
VkShaderModule compute_shader_module;
|
||||
if (vkCreateShaderModule(device, &shader_module_create_info, nullptr,
|
||||
&compute_shader_module) != VK_SUCCESS) {
|
||||
std::clog << "WARNING: Failed to create shader module (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
utility::Cleanup cleanup_shader_module(
|
||||
[device](void *ptr) {
|
||||
vkDestroyShaderModule(device, *((VkShaderModule *)ptr), nullptr);
|
||||
},
|
||||
&compute_shader_module);
|
||||
|
||||
VkPipelineShaderStageCreateInfo compute_shader_stage_info{};
|
||||
compute_shader_stage_info.sType =
|
||||
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
|
||||
compute_shader_stage_info.stage = VK_SHADER_STAGE_COMPUTE_BIT;
|
||||
compute_shader_stage_info.module = compute_shader_module;
|
||||
compute_shader_stage_info.pName = "main";
|
||||
|
||||
VkPipelineLayoutCreateInfo pipeline_layout_info{};
|
||||
pipeline_layout_info.sType =
|
||||
VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
|
||||
pipeline_layout_info.setLayoutCount = 1;
|
||||
pipeline_layout_info.pSetLayouts = &minmax_compute_desc_set_layout;
|
||||
|
||||
if (vkCreatePipelineLayout(device, &pipeline_layout_info, nullptr,
|
||||
&minmax_compute_pipeline_layout) !=
|
||||
VK_SUCCESS) {
|
||||
std::clog
|
||||
<< "WARNING: Failed to create compute pipeline layout (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
cleanup_minmax_pipeline_layout = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkDestroyPipelineLayout(device, *((VkPipelineLayout *)ptr),
|
||||
nullptr);
|
||||
},
|
||||
&minmax_compute_pipeline_layout);
|
||||
|
||||
VkComputePipelineCreateInfo pipeline_info{};
|
||||
pipeline_info.sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO;
|
||||
pipeline_info.layout = minmax_compute_pipeline_layout;
|
||||
pipeline_info.stage = compute_shader_stage_info;
|
||||
|
||||
if (vkCreateComputePipelines(device, VK_NULL_HANDLE, 1, &pipeline_info,
|
||||
nullptr,
|
||||
&minmax_compute_pipeline) != VK_SUCCESS) {
|
||||
std::clog << "WARNING: Failed to create compute pipeline (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
cleanup_minmax_pipeline = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkDestroyPipeline(device, *((VkPipeline *)ptr), nullptr);
|
||||
},
|
||||
&minmax_compute_pipeline);
|
||||
}
|
||||
|
||||
VkCommandPool command_pool;
|
||||
{
|
||||
VkCommandPoolCreateInfo pool_info{};
|
||||
|
|
@ -1283,6 +1682,119 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
staging_buffer, other_buf, other_size);
|
||||
}
|
||||
|
||||
VkBuffer max_in_buf;
|
||||
VkBuffer min_in_buf;
|
||||
VkBuffer min_out_buf;
|
||||
VkBuffer max_out_buf;
|
||||
VkBuffer state_buf;
|
||||
VkDeviceMemory max_in_buf_mem;
|
||||
VkDeviceMemory min_in_buf_mem;
|
||||
VkDeviceMemory min_out_buf_mem;
|
||||
VkDeviceMemory max_out_buf_mem;
|
||||
VkDeviceMemory state_buf_mem;
|
||||
if (!internal::vulkan_create_buffer(
|
||||
device, phys_device,
|
||||
width * height * sizeof(dither::internal::FloatAndIndex),
|
||||
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
|
||||
VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
||||
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, max_in_buf, max_in_buf_mem)) {
|
||||
std::clog << "WARNING: Failed to create max_in buffer (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
utility::Cleanup cleanup_max_in_buf(
|
||||
[device](void *ptr) {
|
||||
vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
|
||||
},
|
||||
&max_in_buf);
|
||||
utility::Cleanup cleanup_max_in_buf_mem(
|
||||
[device](void *ptr) {
|
||||
vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
|
||||
},
|
||||
&max_in_buf_mem);
|
||||
|
||||
if (!internal::vulkan_create_buffer(
|
||||
device, phys_device,
|
||||
width * height * sizeof(dither::internal::FloatAndIndex),
|
||||
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
|
||||
VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
||||
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, min_in_buf, min_in_buf_mem)) {
|
||||
std::clog << "WARNING: Failed to create min_in buffer (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
utility::Cleanup cleanup_min_in_buf(
|
||||
[device](void *ptr) {
|
||||
vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
|
||||
},
|
||||
&min_in_buf);
|
||||
utility::Cleanup cleanup_min_in_buf_mem(
|
||||
[device](void *ptr) {
|
||||
vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
|
||||
},
|
||||
&min_in_buf_mem);
|
||||
|
||||
if (!internal::vulkan_create_buffer(
|
||||
device, phys_device,
|
||||
((width * height + 1) / 2) *
|
||||
sizeof(dither::internal::FloatAndIndex),
|
||||
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
|
||||
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
||||
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, min_out_buf,
|
||||
min_out_buf_mem)) {
|
||||
std::clog << "WARNING: Failed to create min_out buffer (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
utility::Cleanup cleanup_min_out_buf(
|
||||
[device](void *ptr) {
|
||||
vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
|
||||
},
|
||||
&min_out_buf);
|
||||
utility::Cleanup cleanup_min_out_buf_mem(
|
||||
[device](void *ptr) {
|
||||
vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
|
||||
},
|
||||
&min_out_buf_mem);
|
||||
|
||||
if (!internal::vulkan_create_buffer(
|
||||
device, phys_device,
|
||||
((width * height + 1) / 2) *
|
||||
sizeof(dither::internal::FloatAndIndex),
|
||||
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
|
||||
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
||||
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, max_out_buf,
|
||||
max_out_buf_mem)) {
|
||||
std::clog << "WARNING: Failed to create max_out buffer (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
utility::Cleanup cleanup_max_out_buf(
|
||||
[device](void *ptr) {
|
||||
vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
|
||||
},
|
||||
&max_out_buf);
|
||||
utility::Cleanup cleanup_max_out_buf_mem(
|
||||
[device](void *ptr) {
|
||||
vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
|
||||
},
|
||||
&max_out_buf_mem);
|
||||
|
||||
if (!internal::vulkan_create_buffer(device, phys_device, sizeof(int),
|
||||
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
|
||||
VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
||||
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
||||
state_buf, state_buf_mem)) {
|
||||
std::clog << "WARNING: Failed to create state buffer (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
utility::Cleanup cleanup_state_buf(
|
||||
[device](void *ptr) {
|
||||
vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
|
||||
},
|
||||
&state_buf);
|
||||
utility::Cleanup cleanup_state_buf_mem(
|
||||
[device](void *ptr) {
|
||||
vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
|
||||
},
|
||||
&state_buf_mem);
|
||||
|
||||
VkDescriptorPool descriptor_pool;
|
||||
utility::Cleanup cleanup_descriptor_pool{};
|
||||
{
|
||||
|
|
@ -1310,6 +1822,33 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
&descriptor_pool);
|
||||
}
|
||||
|
||||
VkDescriptorPool minmax_descriptor_pool;
|
||||
utility::Cleanup cleanup_minmax_descriptor_pool{};
|
||||
{
|
||||
VkDescriptorPoolSize pool_size{};
|
||||
pool_size.type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
pool_size.descriptorCount = 5;
|
||||
|
||||
VkDescriptorPoolCreateInfo pool_info{};
|
||||
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
|
||||
pool_info.poolSizeCount = 1;
|
||||
pool_info.pPoolSizes = &pool_size;
|
||||
pool_info.maxSets = 1;
|
||||
|
||||
if (vkCreateDescriptorPool(device, &pool_info, nullptr,
|
||||
&minmax_descriptor_pool) != VK_SUCCESS) {
|
||||
std::clog << "WARNING: Failed to create descriptor pool (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
|
||||
cleanup_minmax_descriptor_pool = utility::Cleanup(
|
||||
[device](void *ptr) {
|
||||
vkDestroyDescriptorPool(device, *((VkDescriptorPool *)ptr),
|
||||
nullptr);
|
||||
},
|
||||
&minmax_descriptor_pool);
|
||||
}
|
||||
|
||||
VkDescriptorSet compute_descriptor_set;
|
||||
{
|
||||
VkDescriptorSetAllocateInfo alloc_info{};
|
||||
|
|
@ -1378,6 +1917,87 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
descriptor_writes.data(), 0, nullptr);
|
||||
}
|
||||
|
||||
VkDescriptorSet minmax_compute_descriptor_set;
|
||||
{
|
||||
VkDescriptorSetAllocateInfo alloc_info{};
|
||||
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
|
||||
alloc_info.descriptorPool = minmax_descriptor_pool;
|
||||
alloc_info.descriptorSetCount = 1;
|
||||
alloc_info.pSetLayouts = &minmax_compute_desc_set_layout;
|
||||
|
||||
if (vkAllocateDescriptorSets(device, &alloc_info,
|
||||
&minmax_compute_descriptor_set) !=
|
||||
VK_SUCCESS) {
|
||||
std::clog << "WARNING: Failed to allocate descriptor set (minmax)!\n";
|
||||
goto ENDOF_VULKAN;
|
||||
}
|
||||
|
||||
std::array<VkWriteDescriptorSet, 5> descriptor_writes{};
|
||||
|
||||
descriptor_writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
||||
descriptor_writes[0].dstSet = minmax_compute_descriptor_set;
|
||||
descriptor_writes[0].dstBinding = 0;
|
||||
descriptor_writes[0].dstArrayElement = 0;
|
||||
descriptor_writes[0].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
descriptor_writes[0].descriptorCount = 1;
|
||||
VkDescriptorBufferInfo max_in_info{};
|
||||
max_in_info.buffer = max_in_buf;
|
||||
max_in_info.offset = 0;
|
||||
max_in_info.range = VK_WHOLE_SIZE;
|
||||
descriptor_writes[0].pBufferInfo = &max_in_info;
|
||||
|
||||
descriptor_writes[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
||||
descriptor_writes[1].dstSet = minmax_compute_descriptor_set;
|
||||
descriptor_writes[1].dstBinding = 1;
|
||||
descriptor_writes[1].dstArrayElement = 0;
|
||||
descriptor_writes[1].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
descriptor_writes[1].descriptorCount = 1;
|
||||
VkDescriptorBufferInfo min_in_info{};
|
||||
min_in_info.buffer = min_in_buf;
|
||||
min_in_info.offset = 0;
|
||||
min_in_info.range = VK_WHOLE_SIZE;
|
||||
descriptor_writes[1].pBufferInfo = &min_in_info;
|
||||
|
||||
descriptor_writes[2].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
||||
descriptor_writes[2].dstSet = minmax_compute_descriptor_set;
|
||||
descriptor_writes[2].dstBinding = 2;
|
||||
descriptor_writes[2].dstArrayElement = 0;
|
||||
descriptor_writes[2].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
descriptor_writes[2].descriptorCount = 1;
|
||||
VkDescriptorBufferInfo max_out_info{};
|
||||
max_out_info.buffer = max_out_buf;
|
||||
max_out_info.offset = 0;
|
||||
max_out_info.range = VK_WHOLE_SIZE;
|
||||
descriptor_writes[2].pBufferInfo = &max_out_info;
|
||||
|
||||
descriptor_writes[3].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
||||
descriptor_writes[3].dstSet = minmax_compute_descriptor_set;
|
||||
descriptor_writes[3].dstBinding = 3;
|
||||
descriptor_writes[3].dstArrayElement = 0;
|
||||
descriptor_writes[3].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
descriptor_writes[3].descriptorCount = 1;
|
||||
VkDescriptorBufferInfo min_out_info{};
|
||||
min_out_info.buffer = min_out_buf;
|
||||
min_out_info.offset = 0;
|
||||
min_out_info.range = VK_WHOLE_SIZE;
|
||||
descriptor_writes[3].pBufferInfo = &min_out_info;
|
||||
|
||||
descriptor_writes[4].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
||||
descriptor_writes[4].dstSet = minmax_compute_descriptor_set;
|
||||
descriptor_writes[4].dstBinding = 4;
|
||||
descriptor_writes[4].dstArrayElement = 0;
|
||||
descriptor_writes[4].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
|
||||
descriptor_writes[4].descriptorCount = 1;
|
||||
VkDescriptorBufferInfo state_info{};
|
||||
state_info.buffer = state_buf;
|
||||
state_info.offset = 0;
|
||||
state_info.range = VK_WHOLE_SIZE;
|
||||
descriptor_writes[4].pBufferInfo = &state_info;
|
||||
|
||||
vkUpdateDescriptorSets(device, descriptor_writes.size(),
|
||||
descriptor_writes.data(), 0, nullptr);
|
||||
}
|
||||
|
||||
VkCommandBuffer command_buffer;
|
||||
{
|
||||
VkCommandBufferAllocateInfo alloc_info{};
|
||||
|
|
@ -1396,7 +2016,10 @@ image::Bl dither::blue_noise(int width, int height, int threads,
|
|||
auto result = dither::internal::blue_noise_vulkan_impl(
|
||||
device, phys_device, command_buffer, command_pool, compute_queue,
|
||||
pbp_buf, compute_pipeline, compute_pipeline_layout,
|
||||
compute_descriptor_set, filter_out_buf, width, height);
|
||||
compute_descriptor_set, filter_out_buf, minmax_compute_pipeline,
|
||||
minmax_compute_pipeline_layout, minmax_compute_descriptor_set,
|
||||
max_in_buf, min_in_buf, max_out_buf, min_out_buf, state_buf, width,
|
||||
height);
|
||||
if (!result.empty()) {
|
||||
return internal::rangeToBl(result, width);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -48,6 +48,12 @@ struct QueueFamilyIndices {
|
|||
|
||||
QueueFamilyIndices vulkan_find_queue_families(VkPhysicalDevice device);
|
||||
|
||||
struct FloatAndIndex {
|
||||
float value;
|
||||
int pbp;
|
||||
int idx;
|
||||
};
|
||||
|
||||
std::optional<uint32_t> vulkan_find_memory_type(VkPhysicalDevice phys_dev,
|
||||
uint32_t t_filter,
|
||||
VkMemoryPropertyFlags props);
|
||||
|
|
@ -59,7 +65,8 @@ bool vulkan_create_buffer(VkDevice device, VkPhysicalDevice phys_dev,
|
|||
|
||||
void vulkan_copy_buffer(VkDevice device, VkCommandPool command_pool,
|
||||
VkQueue queue, VkBuffer src_buf, VkBuffer dst_buf,
|
||||
VkDeviceSize size, VkDeviceSize offset = 0);
|
||||
VkDeviceSize size, VkDeviceSize src_offset = 0,
|
||||
VkDeviceSize dst_offset = 0);
|
||||
void vulkan_copy_buffer_pieces(
|
||||
VkDevice device, VkCommandPool command_pool, VkQueue queue,
|
||||
VkBuffer src_buf, VkBuffer dst_buf,
|
||||
|
|
@ -75,8 +82,11 @@ std::vector<unsigned int> blue_noise_vulkan_impl(
|
|||
VkDevice device, VkPhysicalDevice phys_device,
|
||||
VkCommandBuffer command_buffer, VkCommandPool command_pool, VkQueue queue,
|
||||
VkBuffer pbp_buf, VkPipeline pipeline, VkPipelineLayout pipeline_layout,
|
||||
VkDescriptorSet descriptor_set, VkBuffer filter_out_buf, const int width,
|
||||
const int height);
|
||||
VkDescriptorSet descriptor_set, VkBuffer filter_out_buf,
|
||||
VkPipeline minmax_pipeline, VkPipelineLayout minmax_pipeline_layout,
|
||||
VkDescriptorSet minmax_descriptor_set, VkBuffer max_in_buf,
|
||||
VkBuffer min_in_buf, VkBuffer max_out_buf, VkBuffer min_out_buf,
|
||||
VkBuffer state_buf, const int width, const int height);
|
||||
|
||||
std::vector<float> vulkan_buf_to_vec(float *mapped, unsigned int size);
|
||||
|
||||
|
|
@ -180,6 +190,15 @@ inline bool vulkan_get_filter(
|
|||
return true;
|
||||
}
|
||||
|
||||
std::optional<std::pair<int, int>> vulkan_minmax(
|
||||
VkDevice device, VkPhysicalDevice phys_dev, VkCommandBuffer command_buffer,
|
||||
VkCommandPool command_pool, VkQueue queue, VkPipeline minmax_pipeline,
|
||||
VkPipelineLayout minmax_pipeline_layout,
|
||||
VkDescriptorSet minmax_descriptor_set, VkBuffer max_in_buf,
|
||||
VkBuffer min_in_buf, VkBuffer max_out_buf, VkBuffer min_out_buf,
|
||||
VkBuffer state_buf, const int size, const float *const filter_mapped,
|
||||
std::vector<bool> pbp);
|
||||
|
||||
#endif
|
||||
|
||||
#if DITHERING_OPENCL_ENABLED == 1
|
||||
|
|
|
|||
52
src/blue_noise_minmax.glsl
Normal file
52
src/blue_noise_minmax.glsl
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
#version 450
|
||||
|
||||
struct FloatAndIndex {
|
||||
float value;
|
||||
int pbp;
|
||||
int idx;
|
||||
};
|
||||
|
||||
layout(binding = 0) readonly buffer MaxIn { FloatAndIndex max_in[]; };
|
||||
layout(binding = 1) readonly buffer MinIn { FloatAndIndex min_in[]; };
|
||||
layout(binding = 2) writeonly buffer MaxOut { FloatAndIndex max_out[]; };
|
||||
layout(binding = 3) writeonly buffer MinOut { FloatAndIndex min_out[]; };
|
||||
|
||||
layout(binding = 4) readonly buffer State { int size; };
|
||||
|
||||
layout(local_size_x = 256) in;
|
||||
|
||||
void main() {
|
||||
uint index = gl_GlobalInvocationID.x;
|
||||
if (index >= (size + 1) / 2) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (index * 2 + 1 < size) {
|
||||
if (max_in[index * 2].pbp != 0 && max_in[index * 2 + 1].pbp != 0) {
|
||||
if (max_in[index * 2].value > max_in[index * 2 + 1].value) {
|
||||
max_out[index] = max_in[index * 2];
|
||||
} else {
|
||||
max_out[index] = max_in[index * 2 + 1];
|
||||
}
|
||||
} else if (max_in[index * 2].pbp != 0 && max_in[index * 2 + 1].pbp == 0) {
|
||||
max_out[index] = max_in[index * 2];
|
||||
} else {
|
||||
max_out[index] = max_in[index * 2 + 1];
|
||||
}
|
||||
|
||||
if (min_in[index * 2].pbp == 0 && min_in[index * 2 + 1].pbp == 0) {
|
||||
if (min_in[index * 2].value < min_in[index * 2 + 1].value) {
|
||||
min_out[index] = min_in[index * 2];
|
||||
} else {
|
||||
min_out[index] = min_in[index * 2 + 1];
|
||||
}
|
||||
} else if (min_in[index * 2].pbp == 0 && min_in[index * 2 + 1].pbp != 0) {
|
||||
min_out[index] = min_in[index * 2];
|
||||
} else {
|
||||
min_out[index] = min_in[index * 2 + 1];
|
||||
}
|
||||
} else {
|
||||
max_out[index] = max_in[index * 2];
|
||||
min_out[index] = min_in[index * 2];
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue