From 0bbae63300fc83505d34f5ca3f9a5be10e42d7c7 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Sun, 19 Apr 2020 01:25:52 -0300 Subject: gl_rasterizer: Fix buffers without size On NVN buffers can be enabled but have no size. According to deko3d and the behavior we see in Animal Crossing: New Horizons these buffers get the special address of 0x1000 and limit themselves to 0xfff. Implement buffers without a size by binding a null buffer to OpenGL without a side. https://github.com/devkitPro/deko3d/blob/1d1930beea093b5a663419e93b0649719a3ca5da/source/maxwell/gpu_3d_vbo.cpp#L62-L63 --- src/video_core/renderer_vulkan/vk_rasterizer.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/video_core/renderer_vulkan/vk_rasterizer.cpp') diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp index 71007bbe8..2ebf34fc4 100644 --- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp +++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp @@ -834,8 +834,8 @@ void RasterizerVulkan::SetupVertexArrays(FixedPipelineState::VertexInput& vertex const GPUVAddr start{vertex_array.StartAddress()}; const GPUVAddr end{regs.vertex_array_limit[index].LimitAddress()}; - ASSERT(end > start); - const std::size_t size{end - start + 1}; + ASSERT(end >= start); + const std::size_t size{end - start}; const auto [buffer, offset] = buffer_cache.UploadMemory(start, size); buffer_bindings.AddVertexBinding(buffer, offset); } @@ -1179,7 +1179,7 @@ std::size_t RasterizerVulkan::CalculateVertexArraysSize() const { const GPUVAddr end{regs.vertex_array_limit[index].LimitAddress()}; DEBUG_ASSERT(end >= start); - size += (end - start + 1) * regs.vertex_array[index].enable; + size += (end - start) * regs.vertex_array[index].enable; } return size; } -- cgit v1.2.3 From 488ed8bd02c8014cf9c70aff76371a77ad36765c Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Tue, 21 Apr 2020 19:20:53 -0300 Subject: vk_rasterizer: Add lazy default buffer maker and use it for empty buffers Introduce a default buffer getter that lazily constructs an empty buffer. This is intended to match OpenGL's buffer 0. Use this for disabled vertex and uniform buffers. While we are at it, include vertex buffer usages for staging buffers to silence validation errors. --- src/video_core/renderer_vulkan/vk_rasterizer.cpp | 36 ++++++++++++++++++++++-- 1 file changed, 33 insertions(+), 3 deletions(-) (limited to 'src/video_core/renderer_vulkan/vk_rasterizer.cpp') diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp index 2ebf34fc4..538cf73a6 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 -- cgit v1.2.3