Initial commit

src/graphics/host_gpu/renderer/gdsBuffer.cpp

@@ -0,0 +1,70 @@
+#include "graphics/host_gpu/renderer/gdsBuffer.h"
+
+#include "common/assert.h"
+#include "graphics/host_gpu/utils.h"
+#include "graphics/host_gpu/vma.h"
+
+namespace Libs::Graphics {
+
+void GdsBuffer::Init(GraphicContext* ctx) {
+	if (m_buffer == nullptr) {
+		m_buffer = std::make_unique<VulkanBuffer>();
+
+		m_buffer->usage           = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
+		m_buffer->memory.property = static_cast<uint32_t>(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) |
+		                            VK_MEMORY_PROPERTY_HOST_COHERENT_BIT |
+		                            VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
+		VulkanCreateBuffer(ctx, DW_SIZE * 4, m_buffer.get());
+	}
+}
+
+void GdsBuffer::Clear(GraphicContext* ctx, uint64_t dw_offset, uint32_t dw_num,
+                      uint32_t clear_value) {
+	EXIT_IF(ctx == nullptr);
+
+	Common::LockGuard lock(m_mutex);
+
+	Init(ctx);
+
+	EXIT_NOT_IMPLEMENTED(dw_offset >= DW_SIZE);
+	EXIT_NOT_IMPLEMENTED(dw_offset + dw_num > DW_SIZE);
+
+	void* data = nullptr;
+	VulkanMapMemory(ctx, &m_buffer->memory, &data);
+
+	for (uint32_t i = 0; i < dw_num; i++) {
+		static_cast<uint32_t*>(data)[dw_offset + i] = clear_value;
+	}
+
+	VulkanUnmapMemory(ctx, &m_buffer->memory);
+}
+
+void GdsBuffer::Read(GraphicContext* ctx, uint32_t* dst, uint32_t dw_offset, uint32_t dw_size) {
+	EXIT_IF(dst == nullptr);
+
+	Common::LockGuard lock(m_mutex);
+
+	Init(ctx);
+
+	EXIT_NOT_IMPLEMENTED(dw_offset >= DW_SIZE);
+	EXIT_NOT_IMPLEMENTED(dw_offset + dw_size > DW_SIZE);
+
+	void* data = nullptr;
+	VulkanMapMemory(ctx, &m_buffer->memory, &data);
+
+	for (uint32_t i = 0; i < dw_size; i++) {
+		dst[i] = static_cast<uint32_t*>(data)[dw_offset + i];
+	}
+
+	VulkanUnmapMemory(ctx, &m_buffer->memory);
+}
+
+VulkanBuffer* GdsBuffer::GetBuffer(GraphicContext* ctx) {
+	Common::LockGuard lock(m_mutex);
+
+	Init(ctx);
+
+	return m_buffer.get();
+}
+
+} // namespace Libs::Graphics