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-rw-r--r--src/video_core/renderer_vulkan/vk_rasterizer.cpp42
-rw-r--r--src/video_core/renderer_vulkan/vk_rasterizer.h4
2 files changed, 46 insertions, 0 deletions
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 2bcb17b56..f889019c1 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -347,6 +347,8 @@ void RasterizerVulkan::Draw(bool is_indexed, bool is_instanced) {
[&pipeline](auto cmdbuf, auto& dld) { cmdbuf.setCheckpointNV(&pipeline, dld); });
}
+ BeginTransformFeedback();
+
const auto pipeline_layout = pipeline.GetLayout();
const auto descriptor_set = pipeline.CommitDescriptorSet();
scheduler.Record([pipeline_layout, descriptor_set, draw_params](auto cmdbuf, auto& dld) {
@@ -356,6 +358,8 @@ void RasterizerVulkan::Draw(bool is_indexed, bool is_instanced) {
}
draw_params.Draw(cmdbuf, dld);
});
+
+ EndTransformFeedback();
}
void RasterizerVulkan::Clear() {
@@ -738,6 +742,44 @@ void RasterizerVulkan::UpdateDynamicStates() {
UpdateStencilFaces(regs);
}
+void RasterizerVulkan::BeginTransformFeedback() {
+ const auto& regs = system.GPU().Maxwell3D().regs;
+ if (regs.tfb_enabled == 0) {
+ return;
+ }
+
+ UNIMPLEMENTED_IF(regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::TesselationControl) ||
+ regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::TesselationEval) ||
+ regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::Geometry));
+
+ UNIMPLEMENTED_IF(regs.tfb_bindings[1].buffer_enable);
+ UNIMPLEMENTED_IF(regs.tfb_bindings[2].buffer_enable);
+ UNIMPLEMENTED_IF(regs.tfb_bindings[3].buffer_enable);
+
+ const auto& binding = regs.tfb_bindings[0];
+ UNIMPLEMENTED_IF(binding.buffer_enable == 0);
+ UNIMPLEMENTED_IF(binding.buffer_offset != 0);
+
+ const GPUVAddr gpu_addr = binding.Address();
+ const std::size_t size = binding.buffer_size;
+ const auto [buffer, offset] = buffer_cache.UploadMemory(gpu_addr, size, 4, true);
+
+ scheduler.Record([buffer = *buffer, offset = offset, size](auto cmdbuf, auto& dld) {
+ cmdbuf.bindTransformFeedbackBuffersEXT(0, {buffer}, {offset}, {size}, dld);
+ cmdbuf.beginTransformFeedbackEXT(0, {}, {}, dld);
+ });
+}
+
+void RasterizerVulkan::EndTransformFeedback() {
+ const auto& regs = system.GPU().Maxwell3D().regs;
+ if (regs.tfb_enabled == 0) {
+ return;
+ }
+
+ scheduler.Record(
+ [](auto cmdbuf, auto& dld) { cmdbuf.endTransformFeedbackEXT(0, {}, {}, dld); });
+}
+
void RasterizerVulkan::SetupVertexArrays(FixedPipelineState::VertexInput& vertex_input,
BufferBindings& buffer_bindings) {
const auto& regs = system.GPU().Maxwell3D().regs;
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.h b/src/video_core/renderer_vulkan/vk_rasterizer.h
index 96ea05f0a..b2e73d98d 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.h
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.h
@@ -169,6 +169,10 @@ private:
void UpdateDynamicStates();
+ void BeginTransformFeedback();
+
+ void EndTransformFeedback();
+
bool WalkAttachmentOverlaps(const CachedSurfaceView& attachment);
void SetupVertexArrays(FixedPipelineState::VertexInput& vertex_input,