vk_rasterizer: Default to 1 viewports with a size of 0
Silence validation layer errors.
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@ -62,13 +62,16 @@ constexpr auto ComputeShaderIndex = static_cast<std::size_t>(Tegra::Engines::Sha
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VkViewport GetViewportState(const VKDevice& device, const Maxwell& regs, std::size_t index) {
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VkViewport GetViewportState(const VKDevice& device, const Maxwell& regs, std::size_t index) {
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const auto& src = regs.viewport_transform[index];
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const auto& src = regs.viewport_transform[index];
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const float width = src.scale_x * 2.0f;
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const float height = src.scale_y * 2.0f;
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VkViewport viewport;
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VkViewport viewport;
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viewport.x = src.translate_x - src.scale_x;
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viewport.x = src.translate_x - src.scale_x;
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viewport.y = src.translate_y - src.scale_y;
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viewport.y = src.translate_y - src.scale_y;
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viewport.width = src.scale_x * 2.0f;
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viewport.width = width != 0.0f ? width : 1.0f;
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viewport.height = src.scale_y * 2.0f;
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viewport.height = height != 0.0f ? height : 1.0f;
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const float reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne;
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const float reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne ? 1.0f : 0.0f;
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viewport.minDepth = src.translate_z - src.scale_z * reduce_z;
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viewport.minDepth = src.translate_z - src.scale_z * reduce_z;
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viewport.maxDepth = src.translate_z + src.scale_z;
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viewport.maxDepth = src.translate_z + src.scale_z;
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if (!device.IsExtDepthRangeUnrestrictedSupported()) {
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if (!device.IsExtDepthRangeUnrestrictedSupported()) {
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