/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "WebGL2Context.h" #include "GLContext.h" #include "WebGLQuery.h" #include "nsThreadUtils.h" namespace mozilla { /* * We fake ANY_SAMPLES_PASSED and ANY_SAMPLES_PASSED_CONSERVATIVE with * SAMPLES_PASSED on desktop. * * OpenGL ES 3.0 spec 4.1.6: * If the target of the query is ANY_SAMPLES_PASSED_CONSERVATIVE, an * implementation may choose to use a less precise version of the test which * can additionally set the samples-boolean state to TRUE in some other * implementation-dependent cases. */ RefPtr* WebGLContext::ValidateQuerySlotByTarget(GLenum target) { if (IsWebGL2()) { switch (target) { case LOCAL_GL_ANY_SAMPLES_PASSED: case LOCAL_GL_ANY_SAMPLES_PASSED_CONSERVATIVE: return &mQuerySlot_SamplesPassed; case LOCAL_GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: return &mQuerySlot_TFPrimsWritten; default: break; } } if (IsExtensionEnabled(WebGLExtensionID::EXT_disjoint_timer_query)) { switch (target) { case LOCAL_GL_TIME_ELAPSED_EXT: return &mQuerySlot_TimeElapsed; default: break; } } ErrorInvalidEnumInfo("target", target); return nullptr; } // ------------------------------------------------------------------------- // Query Objects RefPtr WebGLContext::CreateQuery() { const FuncScope funcScope(*this, "createQuery"); if (IsContextLost()) return nullptr; return new WebGLQuery(this); } void WebGLContext::BeginQuery(GLenum target, WebGLQuery& query) { FuncScope funcScope(*this, "beginQuery"); if (IsContextLost()) return; funcScope.mBindFailureGuard = true; const auto& slot = ValidateQuerySlotByTarget(target); if (!slot) return; if (*slot) return ErrorInvalidOperation("Query target already active."); const auto& curTarget = query.Target(); if (curTarget && target != curTarget) { ErrorInvalidOperation("Queries cannot change targets."); return; } //// query.BeginQuery(target, *slot); funcScope.mBindFailureGuard = false; } void WebGLContext::EndQuery(GLenum target) { FuncScope funcScope(*this, "endQuery"); if (IsContextLost()) return; funcScope.mBindFailureGuard = true; const auto& slot = ValidateQuerySlotByTarget(target); if (!slot) return; const auto query = *slot; // Grab a strong reference. if (!query) return ErrorInvalidOperation("Query target not active."); query->EndQuery(); funcScope.mBindFailureGuard = false; } Maybe WebGLContext::GetQueryParameter(const WebGLQuery& query, GLenum pname) const { const FuncScope funcScope(*this, "getQueryParameter"); if (IsContextLost()) return Nothing(); return query.GetQueryParameter(pname); } // disjoint_timer_queries void WebGLContext::QueryCounter(WebGLQuery& query) const { const WebGLContext::FuncScope funcScope(*this, "queryCounterEXT"); if (IsContextLost()) return; query.QueryCounter(); } } // namespace mozilla