From 43821b0cffc5aa419c0218992f06f8962ae54a13 Mon Sep 17 00:00:00 2001
From: Frederico Linhares <fred@linhares.blue>
Date: Wed, 8 May 2024 17:56:29 -0300
Subject: refa Rename graphical engine to BluCat

---
 src/blucat/source_buffer.cpp | 87 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/blucat/source_buffer.cpp

(limited to 'src/blucat/source_buffer.cpp')

diff --git a/src/blucat/source_buffer.cpp b/src/blucat/source_buffer.cpp
new file mode 100644
index 0000000..41c40b9
--- /dev/null
+++ b/src/blucat/source_buffer.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2022-2024 Frederico de Oliveira Linhares
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "source_buffer.hpp"
+
+#include <cstring>
+
+namespace BluCat
+{
+
+SourceBuffer::SourceBuffer(Device *device, void *data, size_t data_size)
+{
+  this->device = device;
+  this->device_size = data_size;
+  this->buffer_usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
+  this->memory_properties = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
+    VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
+
+  try
+  {
+    BluCat::BaseBuffer::loader.execute(static_cast<BluCat::BaseBuffer*>(this));
+  }
+  catch(const CommandError &command_error)
+  {
+    std::string error{"Could not initialize Vulkan source buffer → "};
+    error += command_error.what();
+    throw std::runtime_error{error};
+  }
+  this->copy_data(data);
+}
+
+SourceBuffer::SourceBuffer(SourceBuffer &&that)
+{
+  this->buffer = that.buffer;
+  this->device_memory = that.device_memory;
+  this->device_size = that.device_size;
+  this->buffer_usage = that.buffer_usage;
+  this->memory_properties = that.memory_properties;
+
+  that.buffer = VK_NULL_HANDLE;
+  that.device_memory = VK_NULL_HANDLE;
+}
+
+SourceBuffer&
+SourceBuffer::operator=(SourceBuffer &&that)
+{
+  this->buffer = that.buffer;
+  this->device_memory = that.device_memory;
+  this->device_size = that.device_size;
+  this->buffer_usage = that.buffer_usage;
+  this->memory_properties = that.memory_properties;
+
+  that.buffer = VK_NULL_HANDLE;
+  that.device_memory = VK_NULL_HANDLE;
+
+  return *this;
+}
+
+SourceBuffer::~SourceBuffer()
+{
+  BluCat::BaseBuffer::loader.revert(static_cast<BluCat::BaseBuffer*>(this));
+}
+
+void
+SourceBuffer::copy_data(void *src_data)
+{
+  void *dst_data;
+  vkMapMemory(this->device->device, this->device_memory, 0, this->device_size,
+	      0, &dst_data);
+  memcpy(dst_data, src_data, static_cast<size_t>(this->device_size));
+  vkUnmapMemory(this->device->device, this->device_memory);
+}
+
+}
-- 
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