| #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. |
| // |
| |
| // Fence11.cpp: Defines the rx::Fence11 class which implements rx::FenceImpl. |
| |
| #include "libGLESv2/renderer/Fence11.h" |
| #include "libGLESv2/main.h" |
| #include "libGLESv2/renderer/Renderer11.h" |
| |
| namespace rx |
| { |
| |
| Fence11::Fence11(rx::Renderer11 *renderer) |
| { |
| mRenderer = renderer; |
| mQuery = NULL; |
| } |
| |
| Fence11::~Fence11() |
| { |
| if (mQuery) |
| { |
| mQuery->Release(); |
| mQuery = NULL; |
| } |
| } |
| |
| GLboolean Fence11::isFence() |
| { |
| // GL_NV_fence spec: |
| // A name returned by GenFencesNV, but not yet set via SetFenceNV, is not the name of an existing fence. |
| return mQuery != NULL; |
| } |
| |
| void Fence11::setFence(GLenum condition) |
| { |
| if (!mQuery) |
| { |
| D3D11_QUERY_DESC queryDesc; |
| queryDesc.Query = D3D11_QUERY_EVENT; |
| queryDesc.MiscFlags = 0; |
| |
| if (FAILED(mRenderer->getDevice()->CreateQuery(&queryDesc, &mQuery))) |
| { |
| return gl::error(GL_OUT_OF_MEMORY); |
| } |
| } |
| |
| mRenderer->getDeviceContext()->End(mQuery); |
| |
| setCondition(condition); |
| setStatus(GL_FALSE); |
| } |
| |
| GLboolean Fence11::testFence() |
| { |
| if (mQuery == NULL) |
| { |
| return gl::error(GL_INVALID_OPERATION, GL_TRUE); |
| } |
| |
| HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, NULL, 0, 0); |
| |
| if (mRenderer->isDeviceLost()) |
| { |
| return gl::error(GL_OUT_OF_MEMORY, GL_TRUE); |
| } |
| |
| ASSERT(result == S_OK || result == S_FALSE); |
| setStatus(result == S_OK); |
| return getStatus(); |
| } |
| |
| void Fence11::finishFence() |
| { |
| if (mQuery == NULL) |
| { |
| return gl::error(GL_INVALID_OPERATION); |
| } |
| |
| while (!testFence()) |
| { |
| Sleep(0); |
| } |
| } |
| |
| void Fence11::getFenceiv(GLenum pname, GLint *params) |
| { |
| if (mQuery == NULL) |
| { |
| return gl::error(GL_INVALID_OPERATION); |
| } |
| |
| switch (pname) |
| { |
| case GL_FENCE_STATUS_NV: |
| { |
| // GL_NV_fence spec: |
| // Once the status of a fence has been finished (via FinishFenceNV) or tested and the returned status is TRUE (via either TestFenceNV |
| // or GetFenceivNV querying the FENCE_STATUS_NV), the status remains TRUE until the next SetFenceNV of the fence. |
| if (getStatus()) |
| { |
| params[0] = GL_TRUE; |
| return; |
| } |
| |
| HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, NULL, 0, D3D11_ASYNC_GETDATA_DONOTFLUSH); |
| |
| if (mRenderer->isDeviceLost()) |
| { |
| params[0] = GL_TRUE; |
| return gl::error(GL_OUT_OF_MEMORY); |
| } |
| |
| ASSERT(result == S_OK || result == S_FALSE); |
| setStatus(result == S_OK); |
| params[0] = getStatus(); |
| |
| break; |
| } |
| case GL_FENCE_CONDITION_NV: |
| params[0] = getCondition(); |
| break; |
| default: |
| return gl::error(GL_INVALID_ENUM); |
| break; |
| } |
| } |
| |
| } |