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fix(vulkan): add fallback for unsupported line rasterization modes

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- Check for rectangularLines and smoothLines feature support

- Fall back to VK_LINE_RASTERIZATION_MODE_DEFAULT when unavailable

- Fixes validation errors on GPUs without rectangular line support
This commit is contained in:
Zephyron
2026-01-21 18:51:17 +10:00
parent d344908a8b
commit 07180ad265
1 changed files with 8 additions and 3 deletions
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11
src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
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@@ -690,12 +690,17 @@ void GraphicsPipeline::MakePipeline(VkRenderPass render_pass) {
.depthBiasSlopeFactor = 0.0f,
.lineWidth = 1.0f,
};
// Determine line rasterization mode based on available features
VkLineRasterizationModeEXT line_mode = VK_LINE_RASTERIZATION_MODE_DEFAULT_EXT;
if (key.state.smooth_lines != 0 && device.IsSmoothLinesSupported()) {
line_mode = VK_LINE_RASTERIZATION_MODE_RECTANGULAR_SMOOTH_EXT;
} else if (device.IsRectangularLinesSupported()) {
line_mode = VK_LINE_RASTERIZATION_MODE_RECTANGULAR_EXT;
}
VkPipelineRasterizationLineStateCreateInfoEXT line_state{
.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_LINE_STATE_CREATE_INFO_EXT,
.pNext = nullptr,
.lineRasterizationMode = key.state.smooth_lines != 0
? VK_LINE_RASTERIZATION_MODE_RECTANGULAR_SMOOTH_EXT
: VK_LINE_RASTERIZATION_MODE_RECTANGULAR_EXT,
.lineRasterizationMode = line_mode,
.stippledLineEnable = VK_FALSE, // TODO
.lineStippleFactor = 0,
.lineStipplePattern = 0,