Added IContext::getAspectRatio()

Author: corporateshark

lvk/LVK.h

@@ -1024,6 +1024,7 @@ class IContext {
   virtual Result upload(TextureHandle handle, const TextureRangeDesc& range, const void* data) = 0;
   virtual Result download(TextureHandle handle, const TextureRangeDesc& range, void* outData) = 0;
   [[nodiscard]] virtual Dimensions getDimensions(TextureHandle handle) const = 0;
+  [[nodiscard]] virtual float getAspectRatio(TextureHandle handle) const = 0;
   [[nodiscard]] virtual Format getFormat(TextureHandle handle) const = 0;
 #pragma endregion
 

lvk/vulkan/VulkanClasses.cpp

@@ -5102,6 +5102,22 @@ lvk::Dimensions lvk::VulkanContext::getDimensions(TextureHandle handle) const {
   };
 }
 
+float lvk::VulkanContext::getAspectRatio(TextureHandle handle) const {
+  if (!handle) {
+    return 1.0f;
+  }
+
+  const lvk::VulkanImage* tex = texturesPool_.get(handle);
+
+  LVK_ASSERT(tex);
+
+  if (!tex) {
+    return 1.0f;
+  }
+
+  return static_cast<float>(tex->vkExtent_.width) / static_cast<float>(tex->vkExtent_.height);
+}
+
 void lvk::VulkanContext::generateMipmap(TextureHandle handle) const {
   if (handle.empty()) {
     return;

lvk/vulkan/VulkanClasses.h

@@ -516,6 +516,7 @@ class VulkanContext final : public IContext {
   Result upload(TextureHandle handle, const TextureRangeDesc& range, const void* data) override;
   Result download(TextureHandle handle, const TextureRangeDesc& range, void* outData) override;
   Dimensions getDimensions(TextureHandle handle) const override;
+  float getAspectRatio(TextureHandle handle) const override;
   Format getFormat(TextureHandle handle) const override;
 
   TextureHandle getCurrentSwapchainTexture() override;