fix: windows supportHEADmain

1 files changed, 5 insertions, 2 deletions

diff --git a/src/platform/vulkan/vulkan_common.h b/src/platform/vulkan/vulkan_common.h
index 22d389c..ead4d1f 100644
--- a/src/platform/vulkan/vulkan_common.h
+++ b/src/platform/vulkan/vulkan_common.h
@@ -187,6 +187,9 @@ namespace Donut::RHI
         auto bind_pipeline(Pipeline* p) -> void override
         {
             m_pipe = static_cast<VkPipelineR*>(p);
+            // a pipeline whose shaders never loaded has no vk object; binding a null
+            // handle is driver roulette, so skip it and let draw() skip too
+            if (!m_pipe || m_pipe->m_pipeline == VK_NULL_HANDLE) { m_pipe = nullptr; return; }
             vkCmdBindPipeline(m_cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipe->m_pipeline);
         }
         auto set_viewport(int x, int y, int w, int h, bool flip_y) -> void override
@@ -216,9 +219,9 @@ namespace Donut::RHI
         auto bind_index_buffer(Buffer* ib) -> void override
         { vkCmdBindIndexBuffer(m_cmd, static_cast<VkBufferR*>(ib)->m_buf, 0, VK_INDEX_TYPE_UINT32); }
         auto draw(uint32_t vertex_count) -> void override
-        { flush_descriptors(); vkCmdDraw(m_cmd, vertex_count, 1, 0, 0); }
+        { if (!m_pipe) return; flush_descriptors(); vkCmdDraw(m_cmd, vertex_count, 1, 0, 0); }
         auto draw_indexed(uint32_t index_count) -> void override
-        { flush_descriptors(); vkCmdDrawIndexed(m_cmd, index_count, 1, 0, 0, 0); }
+        { if (!m_pipe) return; flush_descriptors(); vkCmdDrawIndexed(m_cmd, index_count, 1, 0, 0, 0); }
 
         // allocate + write + bind a descriptor set for the current pipeline's
         // declared resources, using whatever was bound since bind_pipeline.