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/* Copyright (C) 2025 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_RENDERER_BACKEND_VULKAN_TEXTURE
#define INCLUDED_RENDERER_BACKEND_VULKAN_TEXTURE
#include "renderer/backend/Format.h"
#include "renderer/backend/ITexture.h"
#include "renderer/backend/vulkan/DeviceObjectUID.h"
#include "renderer/backend/vulkan/VMA.h"
#include <cstdint>
#include <glad/vulkan.h>
#include <memory>
namespace Renderer::Backend::Sampler { struct Desc; }
namespace Renderer::Backend::Vulkan { class CDevice; }
namespace Renderer
{
namespace Backend
{
namespace Vulkan
{
class CTexture final : public ITexture
{
public:
~CTexture() override;
IDevice* GetDevice() override;
Type GetType() const override { return m_Type; }
uint32_t GetUsage() const override { return m_Usage; }
Format GetFormat() const override { return m_Format; }
uint32_t GetWidth() const override { return m_Width; }
uint32_t GetHeight() const override { return m_Height; }
uint32_t GetMIPLevelCount() const override { return m_MIPLevelCount; }
uint32_t GetSampleCount() const { return m_SampleCount; }
uint32_t GetLayerCount() const { return m_LayerCount; }
VkImage GetImage() { return m_Image; }
VkImageView GetAttachmentImageView() { return m_AttachmentImageView; }
VkImageView GetSamplerImageView() { return m_SamplerImageView; }
VkSampler GetSampler() { return m_Sampler; }
bool IsCompareEnabled() { return m_IsCompareEnabled; }
VkFormat GetVkFormat() const { return m_VkFormat; }
VkImageAspectFlags GetAttachmentImageAspectMask() { return m_AttachmentImageAspectMask; }
VkImageAspectFlags GetSamplerImageAspectMask() { return m_SamplerImageAspectMask; }
/**
* @return mapped data for readback textures else returns nullptr.
*/
void* GetMappedData() { return m_AllocationInfo.pMappedData; }
VkDeviceMemory GetDeviceMemory() { return m_AllocationInfo.deviceMemory; }
bool IsInitialized() const { return m_Initialized; }
void SetInitialized() { m_Initialized = true; }
DeviceObjectUID GetUID() const { return m_UID; }
private:
friend class CDevice;
friend class CSwapChain;
CTexture(CDevice* device);
static std::unique_ptr<CTexture> Create(
CDevice* device, const char* name, const Type type, const uint32_t usage,
const Format format, const uint32_t width, const uint32_t height,
const Sampler::Desc& defaultSamplerDesc,
const uint32_t MIPLevelCount, const uint32_t sampleCount);
static std::unique_ptr<CTexture> WrapBackbufferImage(
CDevice* device, const char* name, const VkImage image, const VkFormat format,
const VkImageUsageFlags usage, const uint32_t width, const uint32_t height);
static std::unique_ptr<CTexture> CreateReadback(
CDevice* device, const char* name, const Format format,
const uint32_t width, const uint32_t height);
Type m_Type = Type::TEXTURE_2D;
uint32_t m_Usage = 0;
Format m_Format = Format::UNDEFINED;
VkFormat m_VkFormat = VK_FORMAT_UNDEFINED;
uint32_t m_Width = 0;
uint32_t m_Height = 0;
uint32_t m_MIPLevelCount = 0;
uint32_t m_SampleCount = 0;
uint32_t m_LayerCount = 0;
CDevice* m_Device = nullptr;
VkImage m_Image = VK_NULL_HANDLE;
VkImageView m_AttachmentImageView = VK_NULL_HANDLE;
VkImageView m_SamplerImageView = VK_NULL_HANDLE;
VkSampler m_Sampler = VK_NULL_HANDLE;
bool m_IsCompareEnabled = false;
VmaAllocation m_Allocation{};
VmaAllocationInfo m_AllocationInfo{};
DeviceObjectUID m_UID{INVALID_DEVICE_OBJECT_UID};
// Sampler image aspect mask is submask of the attachment one. As we can't
// have both VK_IMAGE_ASPECT_DEPTH_BIT and VK_IMAGE_ASPECT_STENCIL_BIT for
// VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL.
VkImageAspectFlags m_AttachmentImageAspectMask = 0;
VkImageAspectFlags m_SamplerImageAspectMask = 0;
// We store a flag of all subresources, we don't have to handle them separately.
// It's safe to store the current state while we use a single device command
// context.
bool m_Initialized = false;
};
} // namespace Vulkan
} // namespace Backend
} // namespace Renderer
#endif // INCLUDED_RENDERER_BACKEND_VULKAN_TEXTURE
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