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-rw-r--r--src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d11/Query11.cpp155
1 files changed, 155 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d11/Query11.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d11/Query11.cpp
new file mode 100644
index 0000000000..17cf5cad47
--- /dev/null
+++ b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d11/Query11.cpp
@@ -0,0 +1,155 @@
+#include "precompiled.h"
+//
+// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// Query11.cpp: Defines the rx::Query11 class which implements rx::QueryImpl.
+
+#include "libGLESv2/renderer/d3d/d3d11/Query11.h"
+#include "libGLESv2/renderer/d3d/d3d11/Renderer11.h"
+#include "libGLESv2/renderer/d3d/d3d11/renderer11_utils.h"
+#include "libGLESv2/main.h"
+
+namespace rx
+{
+
+static bool checkOcclusionQuery(ID3D11DeviceContext *context, ID3D11Query *query, UINT64 *numPixels)
+{
+ HRESULT result = context->GetData(query, numPixels, sizeof(UINT64), 0);
+ return (result == S_OK);
+}
+
+static bool checkStreamOutPrimitivesWritten(ID3D11DeviceContext *context, ID3D11Query *query, UINT64 *numPrimitives)
+{
+ D3D11_QUERY_DATA_SO_STATISTICS soStats = { 0 };
+ HRESULT result = context->GetData(query, &soStats, sizeof(D3D11_QUERY_DATA_SO_STATISTICS), 0);
+ *numPrimitives = soStats.NumPrimitivesWritten;
+ return (result == S_OK);
+}
+
+Query11::Query11(rx::Renderer11 *renderer, GLenum type) : QueryImpl(type)
+{
+ mRenderer = renderer;
+ mQuery = NULL;
+}
+
+Query11::~Query11()
+{
+ SafeRelease(mQuery);
+}
+
+void Query11::begin()
+{
+ if (mQuery == NULL)
+ {
+ D3D11_QUERY_DESC queryDesc;
+ queryDesc.Query = gl_d3d11::ConvertQueryType(getType());
+ queryDesc.MiscFlags = 0;
+
+ if (FAILED(mRenderer->getDevice()->CreateQuery(&queryDesc, &mQuery)))
+ {
+ return gl::error(GL_OUT_OF_MEMORY);
+ }
+ }
+
+ mRenderer->getDeviceContext()->Begin(mQuery);
+}
+
+void Query11::end()
+{
+ ASSERT(mQuery);
+ mRenderer->getDeviceContext()->End(mQuery);
+
+ mStatus = GL_FALSE;
+ mResult = GL_FALSE;
+}
+
+GLuint Query11::getResult()
+{
+ if (mQuery != NULL)
+ {
+ while (!testQuery())
+ {
+ Sleep(0);
+ // explicitly check for device loss, some drivers seem to return S_FALSE
+ // if the device is lost
+ if (mRenderer->testDeviceLost(true))
+ {
+ return gl::error(GL_OUT_OF_MEMORY, 0);
+ }
+ }
+ }
+
+ return mResult;
+}
+
+GLboolean Query11::isResultAvailable()
+{
+ if (mQuery != NULL)
+ {
+ testQuery();
+ }
+
+ return mStatus;
+}
+
+GLboolean Query11::testQuery()
+{
+ if (mQuery != NULL && mStatus != GL_TRUE)
+ {
+ ID3D11DeviceContext *context = mRenderer->getDeviceContext();
+
+ bool queryFinished = false;
+ switch (getType())
+ {
+ case GL_ANY_SAMPLES_PASSED_EXT:
+ case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
+ {
+ UINT64 numPixels = 0;
+ queryFinished = checkOcclusionQuery(context, mQuery, &numPixels);
+ if (queryFinished)
+ {
+ mResult = (numPixels > 0) ? GL_TRUE : GL_FALSE;
+ }
+ }
+ break;
+
+ case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
+ {
+ UINT64 numPrimitives = 0;
+ queryFinished = checkStreamOutPrimitivesWritten(context, mQuery, &numPrimitives);
+ if (queryFinished)
+ {
+ mResult = static_cast<GLuint>(numPrimitives);
+ }
+ }
+ break;
+
+ default:
+ UNREACHABLE();
+ break;
+ }
+
+ if (queryFinished)
+ {
+ mStatus = GL_TRUE;
+ }
+ else if (mRenderer->testDeviceLost(true))
+ {
+ return gl::error(GL_OUT_OF_MEMORY, GL_TRUE);
+ }
+
+ return mStatus;
+ }
+
+ return GL_TRUE; // prevent blocking when query is null
+}
+
+bool Query11::isStarted() const
+{
+ return (mQuery != NULL);
+}
+
+}