65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2016 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#ifndef XENIA_GPU_VULKAN_RENDER_CACHE_H_
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#define XENIA_GPU_VULKAN_RENDER_CACHE_H_
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#include "xenia/gpu/register_file.h"
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#include "xenia/gpu/shader.h"
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#include "xenia/gpu/vulkan/vulkan_shader.h"
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#include "xenia/gpu/xenos.h"
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#include "xenia/ui/vulkan/vulkan.h"
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#include "xenia/ui/vulkan/vulkan_device.h"
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namespace xe {
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namespace gpu {
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namespace vulkan {
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// Manages the virtualized EDRAM and the render target cache.
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//
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// On the 360 the render target is an opaque block of memory in EDRAM that's
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// only accessible via resolves. We use this to our advantage to simulate
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// something like it as best we can by having a shared backing memory with
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// a multitude of views for each tile location in EDRAM.
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//
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// This allows us to have the same base address write to the same memory
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// regardless of framebuffer format. Resolving then uses whatever format the
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// resolve requests straight from the backing memory.
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class RenderCache {
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public:
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RenderCache(RegisterFile* register_file, ui::vulkan::VulkanDevice* device);
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~RenderCache();
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// Begins a render pass targeting the state-specified framebuffer formats.
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// The command buffer will be transitioned into the render pass phase.
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VkRenderPass BeginRenderPass(VkCommandBuffer command_buffer,
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VulkanShader* vertex_shader,
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VulkanShader* pixel_shader);
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// Ends the current render pass.
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// The command buffer will be transitioned out of the render pass phase.
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void EndRenderPass();
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// Clears all cached content.
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void ClearCache();
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private:
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RegisterFile* register_file_ = nullptr;
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VkDevice device_ = nullptr;
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// Only valid during a BeginRenderPass/EndRenderPass block.
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VkCommandBuffer current_command_buffer_ = nullptr;
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};
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} // namespace vulkan
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} // namespace gpu
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} // namespace xe
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#endif // XENIA_GPU_VULKAN_RENDER_CACHE_H_
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