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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "modules/webgl/WebGLTimerQueryEXT.h" | 5 #include "modules/webgl/WebGLTimerQueryEXT.h" |
| 6 | 6 |
| 7 #include "core/dom/TaskRunnerHelper.h" | 7 #include "core/dom/TaskRunnerHelper.h" |
| 8 #include "gpu/command_buffer/client/gles2_interface.h" | 8 #include "gpu/command_buffer/client/gles2_interface.h" |
| 9 #include "modules/webgl/WebGLRenderingContextBase.h" | 9 #include "modules/webgl/WebGLRenderingContextBase.h" |
| 10 #include "public/platform/Platform.h" | 10 #include "public/platform/Platform.h" |
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| 49 void WebGLTimerQueryEXT::updateCachedResult(gpu::gles2::GLES2Interface* gl) { | 49 void WebGLTimerQueryEXT::updateCachedResult(gpu::gles2::GLES2Interface* gl) { |
| 50 if (m_queryResultAvailable) | 50 if (m_queryResultAvailable) |
| 51 return; | 51 return; |
| 52 | 52 |
| 53 if (!m_canUpdateAvailability) | 53 if (!m_canUpdateAvailability) |
| 54 return; | 54 return; |
| 55 | 55 |
| 56 if (!hasTarget()) | 56 if (!hasTarget()) |
| 57 return; | 57 return; |
| 58 | 58 |
| 59 // If this is a timestamp query, set the result to 0 and make it available as
we don't support timestamps in WebGL due to very poor driver support for them | 59 // If this is a timestamp query, set the result to 0 and make it available as |
| 60 // we don't support timestamps in WebGL due to very poor driver support for |
| 61 // them. |
| 60 if (m_target == GL_TIMESTAMP_EXT) { | 62 if (m_target == GL_TIMESTAMP_EXT) { |
| 61 m_queryResult = 0; | 63 m_queryResult = 0; |
| 62 m_queryResultAvailable = true; | 64 m_queryResultAvailable = true; |
| 63 return; | 65 return; |
| 64 } | 66 } |
| 65 | 67 |
| 66 // We can only update the cached result when control returns to the browser. | 68 // We can only update the cached result when control returns to the browser. |
| 67 m_canUpdateAvailability = false; | 69 m_canUpdateAvailability = false; |
| 68 GLuint available = 0; | 70 GLuint available = 0; |
| 69 gl->GetQueryObjectuivEXT(object(), GL_QUERY_RESULT_AVAILABLE_EXT, &available); | 71 gl->GetQueryObjectuivEXT(object(), GL_QUERY_RESULT_AVAILABLE_EXT, &available); |
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| 95 if (!m_cancellableTaskFactory->isPending()) | 97 if (!m_cancellableTaskFactory->isPending()) |
| 96 m_taskRunner->postTask(BLINK_FROM_HERE, | 98 m_taskRunner->postTask(BLINK_FROM_HERE, |
| 97 m_cancellableTaskFactory->cancelAndCreate()); | 99 m_cancellableTaskFactory->cancelAndCreate()); |
| 98 } | 100 } |
| 99 | 101 |
| 100 void WebGLTimerQueryEXT::allowAvailabilityUpdate() { | 102 void WebGLTimerQueryEXT::allowAvailabilityUpdate() { |
| 101 m_canUpdateAvailability = true; | 103 m_canUpdateAvailability = true; |
| 102 } | 104 } |
| 103 | 105 |
| 104 } // namespace blink | 106 } // namespace blink |
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