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Merge pull request #6580 from ReinUsesLisp/xfb-radv
vk_buffer_cache: Use emulated null buffers for transform feedback
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commit
16f983d33a
@ -152,8 +152,8 @@ void BufferCacheRuntime::BindIndexBuffer(PrimitiveTopology topology, IndexFormat
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}
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if (vk_buffer == VK_NULL_HANDLE) {
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// Vulkan doesn't support null index buffers. Replace it with our own null buffer.
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ReserveNullIndexBuffer();
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vk_buffer = *null_index_buffer;
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ReserveNullBuffer();
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vk_buffer = *null_buffer;
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}
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scheduler.Record([vk_buffer, vk_offset, vk_index_type](vk::CommandBuffer cmdbuf) {
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cmdbuf.BindIndexBuffer(vk_buffer, vk_offset, vk_index_type);
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@ -195,6 +195,14 @@ void BufferCacheRuntime::BindTransformFeedbackBuffer(u32 index, VkBuffer buffer,
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// Already logged in the rasterizer
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return;
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}
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if (buffer == VK_NULL_HANDLE) {
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// Vulkan doesn't support null transform feedback buffers.
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// Replace it with our own null buffer.
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ReserveNullBuffer();
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buffer = *null_buffer;
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offset = 0;
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size = 0;
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}
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scheduler.Record([index, buffer, offset, size](vk::CommandBuffer cmdbuf) {
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const VkDeviceSize vk_offset = offset;
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const VkDeviceSize vk_size = size;
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@ -279,11 +287,11 @@ void BufferCacheRuntime::ReserveQuadArrayLUT(u32 num_indices, bool wait_for_idle
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});
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}
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void BufferCacheRuntime::ReserveNullIndexBuffer() {
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if (null_index_buffer) {
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void BufferCacheRuntime::ReserveNullBuffer() {
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if (null_buffer) {
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return;
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}
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null_index_buffer = device.GetLogical().CreateBuffer(VkBufferCreateInfo{
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null_buffer = device.GetLogical().CreateBuffer(VkBufferCreateInfo{
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.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
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.pNext = nullptr,
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.flags = 0,
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@ -294,12 +302,12 @@ void BufferCacheRuntime::ReserveNullIndexBuffer() {
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.pQueueFamilyIndices = nullptr,
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});
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if (device.HasDebuggingToolAttached()) {
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null_index_buffer.SetObjectNameEXT("Null index buffer");
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null_buffer.SetObjectNameEXT("Null index buffer");
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}
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null_index_buffer_commit = memory_allocator.Commit(null_index_buffer, MemoryUsage::DeviceLocal);
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null_buffer_commit = memory_allocator.Commit(null_buffer, MemoryUsage::DeviceLocal);
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scheduler.RequestOutsideRenderPassOperationContext();
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scheduler.Record([buffer = *null_index_buffer](vk::CommandBuffer cmdbuf) {
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scheduler.Record([buffer = *null_buffer](vk::CommandBuffer cmdbuf) {
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cmdbuf.FillBuffer(buffer, 0, VK_WHOLE_SIZE, 0);
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});
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}
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@ -92,7 +92,7 @@ private:
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void ReserveQuadArrayLUT(u32 num_indices, bool wait_for_idle);
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void ReserveNullIndexBuffer();
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void ReserveNullBuffer();
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const Device& device;
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MemoryAllocator& memory_allocator;
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@ -105,8 +105,8 @@ private:
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VkIndexType quad_array_lut_index_type{};
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u32 current_num_indices = 0;
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vk::Buffer null_index_buffer;
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MemoryCommit null_index_buffer_commit;
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vk::Buffer null_buffer;
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MemoryCommit null_buffer_commit;
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Uint8Pass uint8_pass;
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QuadIndexedPass quad_index_pass;
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