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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the QtQuick module of the Qt Toolkit. |
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| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
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| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "qsgd3d12rendercontext_p.h" |
| #include "qsgd3d12renderer_p.h" |
| #include "qsgd3d12texture_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| // NOTE: Avoid categorized logging. It is slow. |
| |
| #define DECLARE_DEBUG_VAR(variable) \ |
| static bool debug_ ## variable() \ |
| { static bool value = qgetenv("QSG_RENDERER_DEBUG").contains(QT_STRINGIFY(variable)); return value; } |
| |
| DECLARE_DEBUG_VAR(render) |
| |
| QSGD3D12RenderContext::QSGD3D12RenderContext(QSGContext *ctx) |
| : QSGRenderContext(ctx) |
| { |
| } |
| |
| bool QSGD3D12RenderContext::isValid() const |
| { |
| // The render thread sets an engine when it starts up and resets when it |
| // quits. The rc is initialized and functional between those two points, |
| // regardless of any calls to invalidate(). See setEngine(). |
| return m_engine != nullptr; |
| } |
| |
| void QSGD3D12RenderContext::initialize(const InitParams *) |
| { |
| if (m_initialized) |
| return; |
| |
| m_initialized = true; |
| emit initialized(); |
| } |
| |
| void QSGD3D12RenderContext::invalidate() |
| { |
| if (!m_initialized) |
| return; |
| |
| m_initialized = false; |
| |
| if (Q_UNLIKELY(debug_render())) |
| qDebug("rendercontext invalidate engine %p, %d/%d/%d", m_engine, |
| m_texturesToDelete.count(), m_textures.count(), m_fontEnginesToClean.count()); |
| |
| qDeleteAll(m_texturesToDelete); |
| m_texturesToDelete.clear(); |
| |
| qDeleteAll(m_textures); |
| m_textures.clear(); |
| |
| for (QSet<QFontEngine *>::const_iterator it = m_fontEnginesToClean.constBegin(), |
| end = m_fontEnginesToClean.constEnd(); it != end; ++it) { |
| (*it)->clearGlyphCache(m_engine); |
| if (!(*it)->ref.deref()) |
| delete *it; |
| } |
| m_fontEnginesToClean.clear(); |
| |
| m_sg->renderContextInvalidated(this); |
| emit invalidated(); |
| } |
| |
| QSGTexture *QSGD3D12RenderContext::createTexture(const QImage &image, uint flags) const |
| { |
| Q_ASSERT(m_engine); |
| QSGD3D12Texture *t = new QSGD3D12Texture(m_engine); |
| t->create(image, flags); |
| return t; |
| } |
| |
| QSGRenderer *QSGD3D12RenderContext::createRenderer() |
| { |
| return new QSGD3D12Renderer(this); |
| } |
| |
| int QSGD3D12RenderContext::maxTextureSize() const |
| { |
| return 16384; // D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION |
| } |
| |
| void QSGD3D12RenderContext::renderNextFrame(QSGRenderer *renderer, uint fbo) |
| { |
| static_cast<QSGD3D12Renderer *>(renderer)->renderScene(fbo); |
| } |
| |
| void QSGD3D12RenderContext::setEngine(QSGD3D12Engine *engine) |
| { |
| if (m_engine == engine) |
| return; |
| |
| m_engine = engine; |
| |
| if (m_engine) |
| initialize(nullptr); |
| } |
| |
| QSGRendererInterface::GraphicsApi QSGD3D12RenderContext::graphicsApi() const |
| { |
| return Direct3D12; |
| } |
| |
| void *QSGD3D12RenderContext::getResource(QQuickWindow *window, Resource resource) const |
| { |
| if (!m_engine) { |
| qWarning("getResource: No D3D12 engine available yet (window not exposed?)"); |
| return nullptr; |
| } |
| // window can be ignored since the rendercontext and engine are both per window |
| return m_engine->getResource(window, resource); |
| } |
| |
| QSGRendererInterface::ShaderType QSGD3D12RenderContext::shaderType() const |
| { |
| return HLSL; |
| } |
| |
| QSGRendererInterface::ShaderCompilationTypes QSGD3D12RenderContext::shaderCompilationType() const |
| { |
| return RuntimeCompilation | OfflineCompilation; |
| } |
| |
| QSGRendererInterface::ShaderSourceTypes QSGD3D12RenderContext::shaderSourceType() const |
| { |
| return ShaderSourceString | ShaderSourceFile | ShaderByteCode; |
| } |
| |
| QT_END_NAMESPACE |