vkFreeCommandBuffers(device, command_pool, 1, &command_buf);
}
+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) {
+ const int size = width * height;
+ const int pixel_count = size * 4 / 10;
+ const int local_size = 256;
+ const std::size_t global_size =
+ (std::size_t)std::ceil((float)size / (float)local_size);
+
+ std::vector<bool> pbp = random_noise(size, pixel_count);
+ std::vector<int> pbp_i(pbp.size());
+ std::vector<float> filter(size);
+ bool reversed_pbp = false;
+
+ const auto get_filter = [device, phys_device, command_buffer, command_pool,
+ queue, pbp_buf, pipeline, pipeline_layout,
+ descriptor_set, filter_out_buf, size, &pbp, &pbp_i,
+ &reversed_pbp, global_size, &filter]() -> bool {
+ for (unsigned int i = 0; i < pbp.size(); ++i) {
+ if (reversed_pbp) {
+ pbp_i[i] = pbp[i] ? 0 : 1;
+ } else {
+ pbp_i[i] = pbp[i] ? 1 : 0;
+ }
+ }
+
+ vkResetCommandBuffer(command_buffer, 0);
+
+ // Copy pbp buffer.
+ {
+ VkBuffer staging_buffer;
+ VkDeviceMemory staging_buffer_mem;
+
+ if (!internal::vulkan_create_buffer(
+ device, phys_device, size * sizeof(int),
+ VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
+ VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
+ VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
+ staging_buffer, staging_buffer_mem)) {
+ std::clog << "get_filter ERROR: Failed to create staging buffer!\n";
+ return false;
+ }
+ utility::Cleanup cleanup_staging_buf(
+ [device](void *ptr) {
+ vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
+ },
+ &staging_buffer);
+ utility::Cleanup cleanup_staging_buf_mem(
+ [device](void *ptr) {
+ vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
+ },
+ &staging_buffer_mem);
+
+ void *data_ptr;
+ vkMapMemory(device, staging_buffer_mem, 0, size * sizeof(int), 0,
+ &data_ptr);
+ std::memcpy(data_ptr, pbp_i.data(), size * sizeof(int));
+ vkUnmapMemory(device, staging_buffer_mem);
+
+ vulkan_copy_buffer(device, command_pool, queue, staging_buffer, pbp_buf,
+ size * sizeof(int));
+ }
+
+ VkCommandBufferBeginInfo begin_info{};
+ begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
+
+ if (vkBeginCommandBuffer(command_buffer, &begin_info) != VK_SUCCESS) {
+ std::clog << "get_filter ERROR: Failed to begin recording compute "
+ "command buffer!\n";
+ return false;
+ }
+
+ vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline);
+ vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE,
+ pipeline_layout, 0, 1, &descriptor_set, 0, nullptr);
+ vkCmdDispatch(command_buffer, global_size, 1, 1);
+ if (vkEndCommandBuffer(command_buffer) != VK_SUCCESS) {
+ std::clog
+ << "get_filter ERROR: Failed to record compute command buffer!\n";
+ return false;
+ }
+
+ {
+ 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
+ << "get_filter ERROR: Failed to submit compute command buffer!\n";
+ return false;
+ }
+ }
+
+ if (vkDeviceWaitIdle(device) != VK_SUCCESS) {
+ std::clog << "get_filter ERROR: Failed to vkDeviceWaitIdle!\n";
+ return false;
+ }
+
+ // Copy back filter_out buffer.
+ {
+ VkBuffer staging_buffer;
+ VkDeviceMemory staging_buffer_mem;
+
+ if (!internal::vulkan_create_buffer(
+ device, phys_device, size * sizeof(float),
+ VK_BUFFER_USAGE_TRANSFER_DST_BIT,
+ VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
+ VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
+ staging_buffer, staging_buffer_mem)) {
+ std::clog << "get_filter ERROR: Failed to create staging buffer!\n";
+ return false;
+ }
+ utility::Cleanup cleanup_staging_buf(
+ [device](void *ptr) {
+ vkDestroyBuffer(device, *((VkBuffer *)ptr), nullptr);
+ },
+ &staging_buffer);
+ utility::Cleanup cleanup_staging_buf_mem(
+ [device](void *ptr) {
+ vkFreeMemory(device, *((VkDeviceMemory *)ptr), nullptr);
+ },
+ &staging_buffer_mem);
+
+ vulkan_copy_buffer(device, command_pool, queue, filter_out_buf,
+ staging_buffer, size * sizeof(float));
+
+ void *data_ptr;
+ vkMapMemory(device, staging_buffer_mem, 0, size * sizeof(float), 0,
+ &data_ptr);
+ std::memcpy(filter.data(), data_ptr, size * sizeof(float));
+ vkUnmapMemory(device, staging_buffer_mem);
+ }
+
+ return true;
+ };
+
+ {
+#ifndef NDEBUG
+ printf("Inserting %d pixels into image of max count %d\n", pixel_count,
+ size);
+ // generate image from randomized pbp
+ FILE *random_noise_image = fopen("random_noise.pbm", "w");
+ fprintf(random_noise_image, "P1\n%d %d\n", width, height);
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; ++x) {
+ fprintf(random_noise_image, "%d ",
+ pbp[utility::twoToOne(x, y, width, height)] ? 1 : 0);
+ }
+ fputc('\n', random_noise_image);
+ }
+ fclose(random_noise_image);
+#endif
+ }
+
+ if (!get_filter()) {
+ std::cerr << "Vulkan: Failed to execute get_filter at start!\n";
+ } else {
+#ifndef NDEBUG
+ internal::write_filter(filter, width, "filter_out_start.pgm");
+#endif
+ }
+
+ int iterations = 0;
+
+ std::cout << "Begin BinaryArray generation loop\n";
+ while (true) {
+#ifndef NDEBUG
+ printf("Iteration %d\n", ++iterations);
+#endif
+
+ if (!get_filter()) {
+ std::cerr << "Vulkan: Failed to execute do_filter\n";
+ break;
+ }
+
+ int min, max;
+ std::tie(min, max) = internal::filter_minmax(filter, pbp);
+
+ pbp[max] = false;
+
+ if (!get_filter()) {
+ std::cerr << "Vulkan: Failed to execute do_filter\n";
+ break;
+ }
+
+ // get second buffer's min
+ int second_min;
+ std::tie(second_min, std::ignore) = internal::filter_minmax(filter, pbp);
+
+ if (second_min == max) {
+ pbp[max] = true;
+ break;
+ } else {
+ pbp[second_min] = true;
+ }
+
+ if (iterations % 100 == 0) {
+#ifndef NDEBUG
+ std::cout << "max was " << max << ", second_min is " << second_min
+ << std::endl;
+ // generate blue_noise image from pbp
+ FILE *blue_noise_image = fopen("blue_noise.pbm", "w");
+ fprintf(blue_noise_image, "P1\n%d %d\n", width, height);
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; ++x) {
+ fprintf(blue_noise_image, "%d ",
+ pbp[utility::twoToOne(x, y, width, height)] ? 1 : 0);
+ }
+ fputc('\n', blue_noise_image);
+ }
+ fclose(blue_noise_image);
+#endif
+ }
+ }
+
+ if (!get_filter()) {
+ std::cerr << "Vulkan: Failed to execute do_filter (at end)\n";
+ } else {
+#ifndef NDEBUG
+ internal::write_filter(filter, width, "filter_out_final.pgm");
+ FILE *blue_noise_image = fopen("blue_noise.pbm", "w");
+ fprintf(blue_noise_image, "P1\n%d %d\n", width, height);
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; ++x) {
+ fprintf(blue_noise_image, "%d ",
+ pbp[utility::twoToOne(x, y, width, height)] ? 1 : 0);
+ }
+ fputc('\n', blue_noise_image);
+ }
+ fclose(blue_noise_image);
+#endif
+ }
+
+#ifndef NDEBUG
+ {
+ image::Bl pbp_image = toBl(pbp, width);
+ pbp_image.writeToFile(image::file_type::PNG, true, "debug_pbp_before.png");
+ }
+#endif
+
+ std::cout << "Generating dither_array...\n";
+#ifndef NDEBUG
+ std::unordered_set<unsigned int> set;
+#endif
+ std::vector<unsigned int> dither_array(size, 0);
+ int min, max;
+ {
+ std::vector<bool> pbp_copy(pbp);
+ std::cout << "Ranking minority pixels...\n";
+ for (unsigned int i = pixel_count; i-- > 0;) {
+#ifndef NDEBUG
+ std::cout << i << ' ';
+#endif
+ get_filter();
+ std::tie(std::ignore, max) = internal::filter_minmax(filter, pbp);
+ pbp.at(max) = false;
+ dither_array.at(max) = i;
+#ifndef NDEBUG
+ if (set.find(max) != set.end()) {
+ std::cout << "\nWARNING: Reusing index " << max << '\n';
+ } else {
+ set.insert(max);
+ }
+#endif
+ }
+ pbp = pbp_copy;
+#ifndef NDEBUG
+ image::Bl min_pixels = internal::rangeToBl(dither_array, width);
+ min_pixels.writeToFile(image::file_type::PNG, true, "da_min_pixels.png");
+#endif
+ }
+ std::cout << "\nRanking remainder of first half of pixels...\n";
+ for (unsigned int i = pixel_count; i < (unsigned int)((size + 1) / 2); ++i) {
+#ifndef NDEBUG
+ std::cout << i << ' ';
+#endif
+ get_filter();
+ std::tie(min, std::ignore) = internal::filter_minmax(filter, pbp);
+ pbp.at(min) = true;
+ dither_array.at(min) = i;
+#ifndef NDEBUG
+ if (set.find(min) != set.end()) {
+ std::cout << "\nWARNING: Reusing index " << min << '\n';
+ } else {
+ set.insert(min);
+ }
+#endif
+ }
+#ifndef NDEBUG
+ {
+ image::Bl min_pixels = internal::rangeToBl(dither_array, width);
+ min_pixels.writeToFile(image::file_type::PNG, true, "da_mid_pixels.png");
+ get_filter();
+ internal::write_filter(filter, width, "filter_mid.pgm");
+ image::Bl pbp_image = toBl(pbp, width);
+ pbp_image.writeToFile(image::file_type::PNG, true, "debug_pbp_mid.png");
+ }
+#endif
+ std::cout << "\nRanking last half of pixels...\n";
+ reversed_pbp = true;
+ for (unsigned int i = (size + 1) / 2; i < (unsigned int)size; ++i) {
+#ifndef NDEBUG
+ std::cout << i << ' ';
+#endif
+ get_filter();
+ std::tie(std::ignore, max) = internal::filter_minmax(filter, pbp);
+ pbp.at(max) = true;
+ dither_array.at(max) = i;
+#ifndef NDEBUG
+ if (set.find(max) != set.end()) {
+ std::cout << "\nWARNING: Reusing index " << max << '\n';
+ } else {
+ set.insert(max);
+ }
+#endif
+ }
+ std::cout << std::endl;
+
+#ifndef NDEBUG
+ {
+ get_filter();
+ internal::write_filter(filter, width, "filter_after.pgm");
+ image::Bl pbp_image = toBl(pbp, width);
+ pbp_image.writeToFile(image::file_type::PNG, true, "debug_pbp_after.png");
+ }
+#endif
+
+ return dither_array;
+}
+
#endif // DITHERING_VULKAN_ENABLED == 1
#include "image.hpp"
goto ENDOF_VULKAN;
}
}
+
+ 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);
+ if (!result.empty()) {
+ return internal::rangeToBl(result, width);
+ }
+ std::cout << "ERROR: Empty result\n";
+ return {};
}
ENDOF_VULKAN:
- std::clog << "TODO: Remove this once Vulkan support is implemented.\n";
- return {};
#else
std::clog << "WARNING: Not compiled with Vulkan support!\n";
#endif // DITHERING_VULKAN_ENABLED == 1
projects / blue_noise_generation / commitdiff