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Merge pull request #3753 from ReinUsesLisp/ac-vulkan 

{gl,vk}_rasterizer: Add lazy default buffer maker and use it for empty buffers
This commit is contained in:
Rodrigo Locatti 2020-04-26 01:55:43 -03:00 committed by GitHub
parent 9bd70c52e5 488ed8bd02
commit 7e38dd580f
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 53 additions and 12 deletions
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3
src/video_core/engines/maxwell_3d.h
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@ -1259,7 +1259,8 @@ public:
GPUVAddr LimitAddress() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(limit_high) << 32) |
limit_low);
limit_low) +
1;
}
} vertex_array_limit[NumVertexArrays];

12
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -186,8 +186,12 @@ void RasterizerOpenGL::SetupVertexBuffer() {
const GPUVAddr start = vertex_array.StartAddress();
const GPUVAddr end = regs.vertex_array_limit[index].LimitAddress();
ASSERT(end > start);
const u64 size = end - start + 1;
ASSERT(end >= start);
const u64 size = end - start;
if (size == 0) {
glBindVertexBuffer(static_cast<GLuint>(index), 0, 0, vertex_array.stride);
continue;
}
const auto [vertex_buffer, vertex_buffer_offset] = buffer_cache.UploadMemory(start, size);
glBindVertexBuffer(static_cast<GLuint>(index), vertex_buffer, vertex_buffer_offset,
vertex_array.stride);
@ -311,8 +315,8 @@ std::size_t RasterizerOpenGL::CalculateVertexArraysSize() const {
const GPUVAddr start = regs.vertex_array[index].StartAddress();
const GPUVAddr end = regs.vertex_array_limit[index].LimitAddress();
ASSERT(end > start);
size += end - start + 1;
size += end - start;
ASSERT(end >= start);
}
return size;

42
src/video_core/renderer_vulkan/vk_rasterizer.cpp
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@ -877,8 +877,12 @@ 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};
if (size == 0) {
buffer_bindings.AddVertexBinding(DefaultBuffer(), 0);
continue;
}
const auto [buffer, offset] = buffer_cache.UploadMemory(start, size);
buffer_bindings.AddVertexBinding(buffer, offset);
}
@ -1033,8 +1037,7 @@ 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;
}
@ -1057,7 +1060,9 @@ 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;
@ -1222,7 +1227,7 @@ 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;
}
@ -1269,4 +1274,29 @@ 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

6
src/video_core/renderer_vulkan/vk_rasterizer.h
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@ -155,6 +155,7 @@ private:
using Texceptions = std::bitset<Maxwell::NumRenderTargets + 1>;
static constexpr std::size_t ZETA_TEXCEPTION_INDEX = 8;
static constexpr VkDeviceSize DEFAULT_BUFFER_SIZE = 4 * sizeof(float);
void FlushWork();
@ -247,6 +248,8 @@ private:
RenderPassParams GetRenderPassParams(Texceptions texceptions) const;
VkBuffer DefaultBuffer();
Core::System& system;
Core::Frontend::EmuWindow& render_window;
VKScreenInfo& screen_info;
@ -271,6 +274,9 @@ private:
VKFenceManager fence_manager;
VKQueryCache query_cache;
vk::Buffer default_buffer;
VKMemoryCommit default_buffer_commit;
std::array<View, Maxwell::NumRenderTargets> color_attachments;
View zeta_attachment;

2
src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp
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@ -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;