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[Fix] (MG_Backend, MG_Impl/GLImpl, MG_Util): make anisotropic filtering actually reachable - advertise GL_EXT/ARB_texture_filter_anisotropic only where the host driver or the samplerAnisotropy device feature supports it, answer GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT from the backend limit, and honor the sampler state on DirectVulkan (feature enable, limit clamp, LINEAR-only gate, resolved value in the sampler cache key)

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swung0x48
2026-07-16 22:59:11 -04:00
parent e2f873c95c
commit d4922cb0fb
17 changed files with 207 additions and 29 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp
+6 -1
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@@ -1890,7 +1890,8 @@ void main() {
m_samplerManager = MakeUnique<VkSamplerManager>();
MOBILEGL_ASSERT(m_samplerManager != nullptr, "VkSamplerManager creation failed.");
succeeded = m_samplerManager->Initialize({m_device, &m_config});
succeeded = m_samplerManager->Initialize({m_device, &m_config, m_samplerAnisotropyFeatureEnabled,
m_physicalDevice.properties.limits.maxSamplerAnisotropy});
MOBILEGL_ASSERT(succeeded, "VkSamplerManager initialization failed.");
succeeded = InitializeBlitResources();
MOBILEGL_ASSERT(succeeded, "Blit pipeline resource initialization failed.");
@@ -6508,6 +6509,10 @@ void main() {
deviceFeatures.multiDrawIndirect = supportedDeviceFeatures.multiDrawIndirect;
m_multiDrawIndirectFeatureEnabled = deviceFeatures.multiDrawIndirect == VK_TRUE;
m_logicOpFeatureEnabled = deviceFeatures.logicOp == VK_TRUE;
// Backs GL_TEXTURE_MAX_ANISOTROPY_EXT; optional in Vulkan, so the sampler manager falls back
// to isotropic filtering (and the extension goes unadvertised) when the device lacks it.
deviceFeatures.samplerAnisotropy = supportedDeviceFeatures.samplerAnisotropy;
m_samplerAnisotropyFeatureEnabled = deviceFeatures.samplerAnisotropy == VK_TRUE;
VkDeviceCreateInfo deviceCreateInfo{};
deviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;