[Chore] (Config): triage backend-scoped env toggles under MOBILEGL_ESPRYT_ and MOBILEGL_MAGMA_ prefixes

MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp

@@ -22,7 +22,7 @@
 
 namespace MobileGL::MG_Util::BackendLoader {
     static Bool UseAngle() {
-        return MG_Config::Features.UseAngle;
+        return MG_Config::Features.EsprytUseAngle;
     }
 
 #if defined(MOBILEGL_TRACE_ANGLE_VARIANTS) && defined(__ANDROID__)
@@ -1762,9 +1762,9 @@ namespace MobileGL::MG_Util::BackendLoader {
         caps.IsAngleLlvmpipeRenderer =
             caps.IsAngleRenderer && caps.GLESRendererString.find("llvmpipe") != String::npos;
         caps.AvoidSamplerMipmapMinFilter =
-            caps.IsAngleLlvmpipeRenderer && MG_Config::Features.AvoidSamplerMipmapMinFilter;
+            caps.IsAngleLlvmpipeRenderer && MG_Config::Features.EsprytAvoidSamplerMipmapMinFilter;
         caps.AvoidExplicitLodBias =
-            caps.IsAngleLlvmpipeRenderer && MG_Config::Features.AvoidExplicitLodBias;
+            caps.IsAngleLlvmpipeRenderer && MG_Config::Features.EsprytAvoidExplicitLodBias;
         MGLOG_I("    GL_EXT_disjoint_timer_query supported: %s",
                 caps.SupportsDisjointTimerQuery ? "true" : "false");
         MGLOG_I("    GL_KHR_parallel_shader_compile supported: %s",

MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.h

@@ -1235,10 +1235,10 @@ namespace MobileGL {
             // GL_RENDERER contains both "ANGLE" and "llvmpipe".
             Bool IsAngleLlvmpipeRenderer = false;
             // IsAngleLlvmpipeRenderer combined with the
-            // MOBILEGL_AVOID_SAMPLER_MIPMAP_MIN_FILTER feature toggle:
+            // MOBILEGL_ESPRYT_AVOID_SAMPLER_MIPMAP_MIN_FILTER feature toggle:
             // sampler min filters should drop their mipmap component.
             Bool AvoidSamplerMipmapMinFilter = false;
-            // IsAngleLlvmpipeRenderer combined with the MOBILEGL_AVOID_EXPLICIT_LOD_BIAS
+            // IsAngleLlvmpipeRenderer combined with the MOBILEGL_ESPRYT_AVOID_EXPLICIT_LOD_BIAS
             // feature toggle: LOD-bias emulation should not touch explicit-LOD lookups.
             Bool AvoidExplicitLodBias = false;
             // True when indirect draws leak the command's baseInstance word ("reserved,

MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.cpp

@@ -92,7 +92,7 @@ namespace MobileGL::MG_Util::BackendLoader {
         }
 
         Bool IsShaderSubgroupForcedDisabled() {
-            return MG_Config::Features.DisableSubgroup;
+            return MG_Config::Features.MagmaDisableSubgroup;
         }
     } // namespace
 
@@ -272,7 +272,7 @@ namespace MobileGL::MG_Util::BackendLoader {
                 supportsShaderSubgroup ? "true" : "false", caps.SupportsShaderSubgroup ? "true" : "false",
                 subgroupProps.subgroupSize, subgroupProps.supportedStages, subgroupProps.supportedOperations);
         if (supportsShaderSubgroup && forceDisableShaderSubgroup) {
-            MGLOG_W("Vulkan shader subgroup support forced off by MOBILEGL_DISABLE_SUBGROUP");
+            MGLOG_W("Vulkan shader subgroup support forced off by MOBILEGL_MAGMA_DISABLE_SUBGROUP");
         }
 
         return true;

MobileGL/MG_Util/SelfTest/DriverBugProbes.cpp

@@ -2407,7 +2407,7 @@ namespace MobileGL::MG_Util::SelfTest {
 
         Optional<DriverBugFinding> ProbeCopyImagePacked16FieldOrderBug(const GLESFunctionsTable& gl) {
             if (!CopyImageMirrorsPacked16FieldOrder(gl)) return std::nullopt;
-            // The mitigation is a knob (MOBILEGL_WIDEN_PACKED16_STORAGE), so the row consults
+            // The mitigation is a knob (MOBILEGL_ESPRYT_WIDEN_PACKED16_STORAGE), so the row consults
             // it: under ForceOff - the documented negative control - the corruption is
             // replayed verbatim, and a hardcoded "Fixed" would be exactly the kind of
             // reassurance this file exists to refuse. Auto and ForceOn both widen once this
@@ -2433,12 +2433,12 @@ namespace MobileGL::MG_Util::SelfTest {
                     "already holds and the client word round-trips through exactly), so no "
                     "16-bit packed image is left for a copy to disagree about, at twice the "
                     "memory for images of those formats; override with "
-                    "MOBILEGL_WIDEN_PACKED16_STORAGE";
+                    "MOBILEGL_ESPRYT_WIDEN_PACKED16_STORAGE";
                 return DriverBugFinding{
                     "glCopyImageSubData mirrors 16-bit packed texels between differently-laid-out images",
                     DriverBugVerdict::Fixed, detail};
             }
-            detail += "MOBILEGL_WIDEN_PACKED16_STORAGE=0 keeps the native narrow storage, so such "
+            detail += "MOBILEGL_ESPRYT_WIDEN_PACKED16_STORAGE=0 keeps the native narrow storage, so such "
                       "copies are left exactly as the driver delivers them, mirrored words included";
             return DriverBugFinding{
                 "glCopyImageSubData mirrors 16-bit packed texels between differently-laid-out images",

MobileGL/MG_Util/SelfTest/DriverPost.cpp

@@ -1557,7 +1557,7 @@ namespace MobileGL::MG_Util::SelfTest {
 
         // Native iterationRP compute witness. This deliberately uses a separate
         // throwaway Vulkan device rather than the real renderer's queues, and it
-        // treats MOBILEGL_DISABLE_SUBGROUP as irrelevant: the row reports what the
+        // treats MOBILEGL_MAGMA_DISABLE_SUBGROUP as irrelevant: the row reports what the
         // driver does, not what MobileGL elects to advertise to applications.
         void ProbeVulkanIterationRPWitness(ReportBuilder& builder, PFN_vkGetInstanceProcAddr getInstanceProcAddr,
                                            VkInstance instance, VkPhysicalDevice physicalDevice,