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renderer_vulkan: implement fallback path for null descriptors
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@ -336,6 +336,9 @@ void BufferCacheRuntime::Finish() {
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void BufferCacheRuntime::CopyBuffer(VkBuffer dst_buffer, VkBuffer src_buffer,
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std::span<const VideoCommon::BufferCopy> copies, bool barrier) {
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if (dst_buffer == VK_NULL_HANDLE || src_buffer == VK_NULL_HANDLE) {
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return;
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}
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static constexpr VkMemoryBarrier READ_BARRIER{
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.sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER,
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.pNext = nullptr,
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@ -394,6 +397,9 @@ void BufferCacheRuntime::PostCopyBarrier() {
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}
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void BufferCacheRuntime::ClearBuffer(VkBuffer dest_buffer, u32 offset, size_t size, u32 value) {
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if (dest_buffer == VK_NULL_HANDLE) {
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return;
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}
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static constexpr VkMemoryBarrier READ_BARRIER{
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.sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER,
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.pNext = nullptr,
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@ -473,6 +479,11 @@ void BufferCacheRuntime::BindVertexBuffer(u32 index, VkBuffer buffer, u32 offset
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cmdbuf.BindVertexBuffers2EXT(index, 1, &buffer, &vk_offset, &vk_size, &vk_stride);
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});
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} else {
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if (!device.HasNullDescriptor() && buffer == VK_NULL_HANDLE) {
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ReserveNullBuffer();
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buffer = *null_buffer;
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offset = 0;
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}
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scheduler.Record([index, buffer, offset](vk::CommandBuffer cmdbuf) {
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cmdbuf.BindVertexBuffer(index, buffer, offset);
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});
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@ -1487,6 +1487,9 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
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max_push_descriptors = push_descriptor.maxPushDescriptors;
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}
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has_null_descriptor = true;
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return extensions;
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}
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@ -397,6 +397,10 @@ public:
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return must_emulate_bgr565;
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}
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bool HasNullDescriptor() const {
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return has_null_descriptor;
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}
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u32 GetMaxVertexInputAttributes() const {
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return max_vertex_input_attributes;
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}
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@ -511,6 +515,7 @@ private:
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bool supports_d24_depth{}; ///< Supports D24 depth buffers.
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bool cant_blit_msaa{}; ///< Does not support MSAA<->MSAA blitting.
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bool must_emulate_bgr565{}; ///< Emulates BGR565 by swizzling RGB565 format.
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bool has_null_descriptor{}; ///< Has support for null descriptors.
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u32 max_vertex_input_attributes{}; ///< Max vertex input attributes in pipeline
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u32 max_vertex_input_bindings{}; ///< Max vertex input buffers in pipeline
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