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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_Util/BackendLoaders/OpenGL/Loader.cpp
+7
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@@ -911,6 +911,13 @@ namespace MobileGL::MG_Util::BackendLoader {
glesFuncs.glGetIntegerv(GL_MAX_VIEWPORTS, &maxViewports);
glesFuncs.glGetIntegerv(GL_MAX_VIEWPORT_DIMS, maxViewportDims);
glesFuncs.glGetIntegerv(GL_VIEWPORT_SUBPIXEL_BITS, &viewportSubpixelBits);
// Only legal to query once the extension has been seen in the loop above, hence not batched
// with the unconditional probes: on a driver without it this raises GL_INVALID_ENUM.
if (caps.SupportsTextureFilterAnisotropy) {
GLfloat maxTextureMaxAnisotropy = 1.0f;
glesFuncs.glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxTextureMaxAnisotropy);
caps.MaxTextureMaxAnisotropy = std::max(maxTextureMaxAnisotropy, 1.0f);
}
caps.AliasedLineWidthRangeMin = aliasedLineWidthRange[0];
caps.AliasedLineWidthRangeMax = aliasedLineWidthRange[1];
caps.SmoothLineWidthRangeMin = smoothLineWidthRange[0];
MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.h
+3
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@@ -1034,6 +1034,9 @@ namespace MobileGL {
// GL_EXT_texture_filter_anisotropic is present, so sampler/texture
// anisotropy may be forwarded without raising GL_INVALID_ENUM in GLES.
Bool SupportsTextureFilterAnisotropy = false;
// GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT of the host driver; only queried when the
// extension above is present, and left at 1.0 (no anisotropy) otherwise.
Float MaxTextureMaxAnisotropy = 1.0f;
Bool SupportsBaseInstance = false;
// GL_EXT_disjoint_timer_query is present in the extension string.
Bool SupportsDisjointTimerQuery = false;
MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.cpp
+2
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@@ -124,6 +124,7 @@ namespace MobileGL::MG_Util::BackendLoader {
caps.UniformBufferOffsetAlignment = static_cast<int>(p.limits.minUniformBufferOffsetAlignment);
caps.AliasedLineWidthRangeMin = p.limits.lineWidthRange[0];
caps.AliasedLineWidthRangeMax = p.limits.lineWidthRange[1];
caps.MaxSamplerAnisotropy = p.limits.maxSamplerAnisotropy;
caps.SmoothLineWidthRangeMin = p.limits.lineWidthRange[0];
caps.SmoothLineWidthRangeMax = p.limits.lineWidthRange[1];
caps.SmoothLineWidthGranularity = p.limits.lineWidthGranularity;
@@ -208,6 +209,7 @@ namespace MobileGL::MG_Util::BackendLoader {
caps.UniformBufferOffsetAlignment = static_cast<int>(properties.limits.minUniformBufferOffsetAlignment);
caps.AliasedLineWidthRangeMin = properties.limits.lineWidthRange[0];
caps.AliasedLineWidthRangeMax = properties.limits.lineWidthRange[1];
caps.MaxSamplerAnisotropy = properties.limits.maxSamplerAnisotropy;
caps.SmoothLineWidthRangeMin = properties.limits.lineWidthRange[0];
caps.SmoothLineWidthRangeMax = properties.limits.lineWidthRange[1];
caps.SmoothLineWidthGranularity = properties.limits.lineWidthGranularity;
MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.h
+3
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@@ -18,6 +18,9 @@ namespace MobileGL {
Int UniformBufferOffsetAlignment = 256;
Float AliasedLineWidthRangeMin = 1.0f;
Float AliasedLineWidthRangeMax = 1.0f;
// VkPhysicalDeviceLimits::maxSamplerAnisotropy. Whether it can be used at all depends on
// the samplerAnisotropy feature, which the renderer decides at device creation.
Float MaxSamplerAnisotropy = 1.0f;
Float SmoothLineWidthRangeMin = 1.0f;
Float SmoothLineWidthRangeMax = 1.0f;
Float SmoothLineWidthGranularity = 1.0f;