[Fix] (MG_Backend/DirectVulkan, trace-replay): gate R11G11B10F fallback

.github/workflows/test.yml

@@ -445,7 +445,11 @@ jobs:
 
       - name: Retrace and validate
         working-directory: build-retrace/tools/trace_replay
-        run: ctest -V --no-tests=error -R '^MobileGLTraceReplay\.${{ matrix.case }}\.${{ matrix.backend }}$'
+        run: |
+          if [ '${{ matrix.backend }}' = 'DirectVulkan' ]; then
+            export MOBILEGL_VULKAN_R11G11B10F_FALLBACK=1
+          fi
+          ctest -V --no-tests=error -R '^MobileGLTraceReplay\.${{ matrix.case }}\.${{ matrix.backend }}$'
 
       - name: Upload actual image
         if: always()

MobileGL/MG_Backend/DirectVulkan/BackendObject_DirectVulkan.cpp

@@ -17,8 +17,19 @@
 #include "MG_Util/Converters/MGToVk/TextureEnumConverter.h"
 #include "MG_Util/Texture/TextureFormatProcessor.h"
 
+#include <cstdlib>
+#include <cstring>
+
 namespace MobileGL::MG_Backend::DirectVulkan {
     namespace {
+        Bool IsR11G11B10FFallbackEnabled() {
+            static const Bool enabled = [] {
+                const char* value = std::getenv("MOBILEGL_VULKAN_R11G11B10F_FALLBACK");
+                return value != nullptr && value[0] != '\0' && std::strcmp(value, "0") != 0;
+            }();
+            return enabled;
+        }
+
         Bool IsReleaseCurrentRequest(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
             (void)dpy;
             return draw == EGL_NO_SURFACE && read == EGL_NO_SURFACE && ctx == EGL_NO_CONTEXT;
@@ -142,6 +153,11 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                 return TextureInternalFormat::RGBA16Snorm;
             case TextureInternalFormat::RGB16F:
                 return TextureInternalFormat::RGBA16F;
+            case TextureInternalFormat::R11FG11FB10F:
+                if (IsR11G11B10FFallbackEnabled()) {
+                    return TextureInternalFormat::RGBA16F;
+                }
+                return Nullopt;
             case TextureInternalFormat::RGB32F:
                 return TextureInternalFormat::RGBA32F;
             case TextureInternalFormat::RGB8I:

MobileGL/MG_Backend/DirectVulkan/Renderer/VkTextureManager.cpp

@@ -46,6 +46,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         Uint32 arrayLayers = 1;
     };
 
+    static Bool IsR11G11B10FFallbackEnabled() {
+        static const Bool enabled = [] {
+            const char* value = std::getenv("MOBILEGL_VULKAN_R11G11B10F_FALLBACK");
+            return value != nullptr && value[0] != '\0' && std::strcmp(value, "0") != 0;
+        }();
+        return enabled;
+    }
+
     static Bool IsMultisampleTextureUploadTarget(TextureUploadTarget target) {
         return target == TextureUploadTarget::Texture2DMultisample ||
                target == TextureUploadTarget::ProxyTexture2DMultisample ||
@@ -320,6 +328,11 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             return {VK_FORMAT_R16G16B16A16_SNORM, true, 2, {0xFF, 0x7F, 0x00, 0x00}};
         case TextureInternalFormat::RGB16F:
             return {VK_FORMAT_R16G16B16A16_SFLOAT, true, 2, {0x00, 0x3C, 0x00, 0x00}};
+        case TextureInternalFormat::R11FG11FB10F:
+            if (IsR11G11B10FFallbackEnabled()) {
+                return {VK_FORMAT_R16G16B16A16_SFLOAT, true, 2, {0x00, 0x3C, 0x00, 0x00}};
+            }
+            return {MG_Util::ConvertTextureInternalFormatToVkEnum(format), false, 0, {0, 0, 0, 0}};
         case TextureInternalFormat::RGB32F:
             return {VK_FORMAT_R32G32B32A32_SFLOAT, true, 4, {0x00, 0x00, 0x80, 0x3F}};
         case TextureInternalFormat::RGB8I: