mirror of
https://github.com/doitsujin/dxvk.git
synced 2025-02-20 19:54:19 +01:00
[dxvk] Bind dummy resource for unbound vertex and index buffers
Allows GTA V to run, although heavy rendering artifacts remain.
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@ -1185,8 +1185,12 @@ namespace dxvk {
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m_flags.clr(DxvkContextFlag::GpDirtyPipelineState);
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for (uint32_t i = 0; i < m_state.gp.state.ilBindingCount; i++) {
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const uint32_t binding = m_state.gp.state.ilBindings[i].binding;
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m_state.gp.state.ilBindings[i].stride
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= m_state.vi.vertexStrides[m_state.gp.state.ilBindings[i].binding];
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= (m_state.vi.bindingMask & (1u << binding)) != 0
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? m_state.vi.vertexStrides[binding]
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: 0;
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}
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for (uint32_t i = m_state.gp.state.ilBindingCount; i < MaxNumVertexBindings; i++)
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@ -1399,6 +1403,10 @@ namespace dxvk {
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m_state.vi.indexType);
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m_cmd->trackResource(
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physicalSlice.resource());
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} else {
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m_cmd->cmdBindIndexBuffer(
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m_device->dummyBufferHandle(),
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0, VK_INDEX_TYPE_UINT32);
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}
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}
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}
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@ -1408,6 +1416,8 @@ namespace dxvk {
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if (m_flags.test(DxvkContextFlag::GpDirtyVertexBuffers)) {
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m_flags.clr(DxvkContextFlag::GpDirtyVertexBuffers);
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uint32_t bindingMask = 0;
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for (uint32_t i = 0; i < m_state.gp.state.ilBindingCount; i++) {
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const uint32_t binding = m_state.gp.state.ilBindings[i].binding;
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@ -1419,8 +1429,20 @@ namespace dxvk {
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m_cmd->cmdBindVertexBuffers(binding, 1, &handle, &offset);
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m_cmd->trackResource(vbo.resource());
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bindingMask |= 1u << binding;
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} else {
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const VkBuffer handle = m_device->dummyBufferHandle();
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const VkDeviceSize offset = 0;
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m_cmd->cmdBindVertexBuffers(binding, 1, &handle, &offset);
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}
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}
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if (m_state.vi.bindingMask != bindingMask) {
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m_flags.set(DxvkContextFlag::GpDirtyPipelineState);
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m_state.vi.bindingMask = bindingMask;
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}
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}
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}
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@ -38,7 +38,8 @@ namespace dxvk {
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struct DxvkVertexInputState {
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DxvkBufferSlice indexBuffer;
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VkIndexType indexType = VK_INDEX_TYPE_UINT32;
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VkIndexType indexType = VK_INDEX_TYPE_UINT32;
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uint32_t bindingMask = 0;
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std::array<DxvkBufferSlice,
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DxvkLimits::MaxNumVertexBindings> vertexBuffers;
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@ -275,6 +275,14 @@ namespace dxvk {
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const Rc<DxvkSurface>& surface,
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const DxvkSwapchainProperties& properties);
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/**
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* \brief Dummy buffer handle
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* \returns Use for unbound vertex buffers.
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*/
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VkBuffer dummyBufferHandle() const {
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return m_unboundResources.bufferHandle();
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}
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/**
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* \brief Dummy buffer descriptor
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* \returns Descriptor that points to a dummy buffer
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@ -20,10 +20,22 @@ namespace dxvk {
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DxvkUnboundResources(DxvkDevice* dev);
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~DxvkUnboundResources();
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/**
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* \brief Dummy buffer handle
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*
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* Returns a handle to a buffer filled
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* with zeroes. Use for unbound vertex
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* and index buffers.
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* \returns Dummy buffer handle
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*/
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VkBuffer bufferHandle() const {
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return m_buffer->slice().handle();
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}
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/**
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* \brief Dummy buffer descriptor
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*
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* Points to a tiny buffer with undefined
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* Points to a small buffer with undefined
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* values. Do not access this buffer.
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* \returns Dummy buffer descriptor
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*/
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