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[Fix] (Getter): answer the GL 4.6 limit surface honestly - tess/cull/subroutine pnames, TBuiltInResource drift, 84 UBO binding points, 64-bit GL_MAX_ELEMENT_INDEX, per-category sample truth

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swung0x48
2026-08-27 03:47:16 -04:00
parent 07669aacd4
commit 7168f2ef77
24 changed files with 905 additions and 120 deletions
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MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.cpp
+7 -10
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@@ -688,16 +688,15 @@ namespace MobileGL::MG_Impl::GLImpl {
// GL_MAX_SAMPLES is the ceiling over all formats; an integer format has its own
// (GL_MAX_INTEGER_SAMPLES) and GL 4.6 core 9.2.4 makes exceeding it INVALID_OPERATION.
// The multisample TEXTURE path resolves the limit per format the same way
// (GL_Texture.cpp, GetMaxSupportedTextureSamples). Both are floored to the value MobileGL
// advertises: on a driver where the two differ - Adreno reports GL_MAX_SAMPLES 4 and
// GL_MAX_INTEGER_SAMPLES 1 - rejecting the advertised count here only moves the failure
// from the driver into MobileGL, so the frontend accepts it and the backend clamps the
// count it actually hands the driver.
// (GL_Texture.cpp, GetMaxSupportedTextureSamples), and both now enforce exactly what their
// pname advertises. The integer ceiling used to be floored at GL_MAX_SAMPLES so that the
// frontend would accept a count it had advertised globally - but on Adreno and Mali the
// integer path is genuinely one sample, and accepting four only moved the failure from an
// honest INVALID_OPERATION here to a silently under-allocated renderbuffer.
Int GetMaxRenderbufferSamplesForFormat_State(TextureInternalFormat format) {
if (MG_Backend::pActiveBackendObject == nullptr) {
return std::numeric_limits<Int>::max();
}
const auto& dynamicParameters = MG_Backend::pActiveBackendObject->GetDynamicParameters();
GLenum normalizedInternalFormat = MG_Util::ConvertTextureInternalFormatToGLEnum(format);
GLenum normalizedFormat = GL_RGBA;
@@ -711,10 +710,8 @@ namespace MobileGL::MG_Impl::GLImpl {
if (!isIntegerFormat) {
return GetMaxRenderbufferSamples_State();
}
// Per-format still, but never below the ceiling glGetIntegerv(GL_MAX_SAMPLES) promised:
// the driver's raw GL_MAX_INTEGER_SAMPLES stays the *backend* limit and the backend
// clamps to it, while the frontend honours what it advertised.
return std::max(dynamicParameters.MaxIntegerSamples, GetAdvertisedMaxSamples());
// Exactly what glGetIntegerv(GL_MAX_INTEGER_SAMPLES) reports.
return GetAdvertisedIntegerMaxSamples();
}
Bool ValidateRenderbufferStorageSize_State(GLsizei width, GLsizei height, const char* caller) {