diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp index 2ebf34fc45..538cf73a67 100644 --- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp +++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp @@ -836,6 +836,10 @@ void RasterizerVulkan::SetupVertexArrays(FixedPipelineState::VertexInput& vertex ASSERT(end >= start); const std::size_t size{end - start}; + if (size == 0) { + buffer_bindings.AddVertexBinding(DefaultBuffer(), 0); + continue; + } const auto [buffer, offset] = buffer_cache.UploadMemory(start, size); buffer_bindings.AddVertexBinding(buffer, offset); } @@ -990,8 +994,7 @@ void RasterizerVulkan::SetupConstBuffer(const ConstBufferEntry& entry, const Tegra::Engines::ConstBufferInfo& buffer) { if (!buffer.enabled) { // Set values to zero to unbind buffers - update_descriptor_queue.AddBuffer(buffer_cache.GetEmptyBuffer(sizeof(float)), 0, - sizeof(float)); + update_descriptor_queue.AddBuffer(DefaultBuffer(), 0, DEFAULT_BUFFER_SIZE); return; } @@ -1014,7 +1017,9 @@ void RasterizerVulkan::SetupGlobalBuffer(const GlobalBufferEntry& entry, GPUVAdd if (size == 0) { // Sometimes global memory pointers don't have a proper size. Upload a dummy entry // because Vulkan doesn't like empty buffers. - constexpr std::size_t dummy_size = 4; + // Note: Do *not* use DefaultBuffer() here, storage buffers can be written breaking the + // default buffer. + static constexpr std::size_t dummy_size = 4; const auto buffer = buffer_cache.GetEmptyBuffer(dummy_size); update_descriptor_queue.AddBuffer(buffer, 0, dummy_size); return; @@ -1226,4 +1231,29 @@ RenderPassParams RasterizerVulkan::GetRenderPassParams(Texceptions texceptions) return renderpass_params; } +VkBuffer RasterizerVulkan::DefaultBuffer() { + if (default_buffer) { + return *default_buffer; + } + + VkBufferCreateInfo ci; + ci.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; + ci.pNext = nullptr; + ci.flags = 0; + ci.size = DEFAULT_BUFFER_SIZE; + ci.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | + VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT; + ci.sharingMode = VK_SHARING_MODE_EXCLUSIVE; + ci.queueFamilyIndexCount = 0; + ci.pQueueFamilyIndices = nullptr; + default_buffer = device.GetLogical().CreateBuffer(ci); + default_buffer_commit = memory_manager.Commit(default_buffer, false); + + scheduler.RequestOutsideRenderPassOperationContext(); + scheduler.Record([buffer = *default_buffer](vk::CommandBuffer cmdbuf) { + cmdbuf.FillBuffer(buffer, 0, DEFAULT_BUFFER_SIZE, 0); + }); + return *default_buffer; +} + } // namespace Vulkan diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.h b/src/video_core/renderer_vulkan/vk_rasterizer.h index d9108f862a..eafc7bacee 100644 --- a/src/video_core/renderer_vulkan/vk_rasterizer.h +++ b/src/video_core/renderer_vulkan/vk_rasterizer.h @@ -148,6 +148,7 @@ private: using Texceptions = std::bitset; static constexpr std::size_t ZETA_TEXCEPTION_INDEX = 8; + static constexpr VkDeviceSize DEFAULT_BUFFER_SIZE = 4 * sizeof(float); void FlushWork(); @@ -240,6 +241,8 @@ private: RenderPassParams GetRenderPassParams(Texceptions texceptions) const; + VkBuffer DefaultBuffer(); + Core::System& system; Core::Frontend::EmuWindow& render_window; VKScreenInfo& screen_info; @@ -263,6 +266,9 @@ private: VKSamplerCache sampler_cache; VKQueryCache query_cache; + vk::Buffer default_buffer; + VKMemoryCommit default_buffer_commit; + std::array color_attachments; View zeta_attachment; diff --git a/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp b/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp index 94d954d7ac..c76ab5c2dd 100644 --- a/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp +++ b/src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp @@ -81,7 +81,7 @@ VKBuffer& VKStagingBufferPool::CreateStagingBuffer(std::size_t size, bool host_v ci.size = 1ULL << log2; ci.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | - VK_BUFFER_USAGE_INDEX_BUFFER_BIT; + VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT; ci.sharingMode = VK_SHARING_MODE_EXCLUSIVE; ci.queueFamilyIndexCount = 0; ci.pQueueFamilyIndices = nullptr;