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Diffstat (limited to 'src/runtimerender/Qt3DSDistanceFieldRenderer.h')
| -rw-r--r-- | src/runtimerender/Qt3DSDistanceFieldRenderer.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/runtimerender/Qt3DSDistanceFieldRenderer.h b/src/runtimerender/Qt3DSDistanceFieldRenderer.h new file mode 100644 index 0000000..3af19a9 --- /dev/null +++ b/src/runtimerender/Qt3DSDistanceFieldRenderer.h @@ -0,0 +1,171 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) any later version +** approved by the KDE Free Qt Foundation. The licenses are as published by +** the Free Software Foundation and appearing in the file LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DSDISTANCEFIELDRENDERER_H +#define QT3DSDISTANCEFIELDRENDERER_H + +#include "Qt3DSFontDatabase_p.h" + +#if QT_VERSION >= QT_VERSION_CHECK(5,12,2) + +#include "Qt3DSTextRenderer.h" +#include "Qt3DSRenderText.h" +#include "render/Qt3DSRenderShaderProgram.h" + +#include "Qt3DSDistanceFieldGlyphCacheManager_p.h" +#include "Qt3DSDistanceFieldGlyphCache_p.h" + +namespace qt3ds { +namespace render { + +struct GlyphInfo { + QVector<float> vertexes; + QVector<quint32> glyphIndexes; + Q3DSDistanceFieldGlyphCache *cache; + float fontScale; + float shadowOffsetX; + float shadowOffsetY; + NVBounds3 bounds; +}; + +struct Q3DSDistanceFieldShader { + NVRenderShaderProgram *program = nullptr; + NVRenderCachedShaderProperty<QT3DSMat44> mvp; + NVRenderCachedShaderProperty<QT3DSI32> textureWidth; + NVRenderCachedShaderProperty<QT3DSI32> textureHeight; + NVRenderCachedShaderProperty<QT3DSF32> fontScale; + NVRenderCachedShaderProperty<NVRenderTexture2D *> texture; + NVRenderCachedShaderProperty<QT3DSVec4> color; +}; + +struct Q3DSDistanceFieldDropShadowShader { + NVRenderShaderProgram *program = nullptr; + NVRenderCachedShaderProperty<QT3DSMat44> mvp; + NVRenderCachedShaderProperty<QT3DSI32> textureWidth; + NVRenderCachedShaderProperty<QT3DSI32> textureHeight; + NVRenderCachedShaderProperty<QT3DSF32> fontScale; + NVRenderCachedShaderProperty<QT3DSVec2> shadowOffset; + NVRenderCachedShaderProperty<NVRenderTexture2D *> texture; + NVRenderCachedShaderProperty<QT3DSVec4> color; + NVRenderCachedShaderProperty<QT3DSVec4> shadowColor; +}; + +struct Q3DSDistanceFieldMesh +{ + NVRenderAttribLayout *attribLayout = nullptr; + NVRenderVertexBuffer *vertexBuffer = nullptr; + NVRenderIndexBuffer *indexBuffer = nullptr; + NVRenderInputAssembler *inputAssembler = nullptr; +}; + +class Q3DSDistanceFieldRenderer : public ITextRenderer +{ +public: + Q3DSDistanceFieldRenderer(NVFoundationBase &foundation); + ~Q3DSDistanceFieldRenderer() override; + QHash<Q3DSDistanceFieldGlyphCache::TextureInfo *, GlyphInfo> buildGlyphsPerTexture( + const SText &textInfo); + void buildShaders(); + Q3DSDistanceFieldMesh buildMesh(const GlyphInfo &glyphInfo, bool shadow); + void renderMesh(NVRenderInputAssembler *inputAssembler, NVRenderTexture2D *texture, + const QT3DSMat44 &mvp, QT3DSI32 textureWidth, QT3DSI32 textureHeight, + QT3DSF32 fontScale, QT3DSVec4 color); + void renderMeshWithDropShadow(NVRenderInputAssembler *inputAssembler, + NVRenderTexture2D *texture, const QT3DSMat44 &mvp, + QT3DSI32 textureWidth, QT3DSI32 textureHeight, + QT3DSF32 fontScale, QT3DSVec2 shadowOffset, + QT3DSVec4 color, QT3DSVec4 shadowColor); + void renderText(SText &text, const QT3DSMat44 &mvp); + void renderTextDepth(SText &text, const QT3DSMat44 &mvp); + void setContext(IQt3DSRenderContext &context); + + bool checkAndBuildGlyphs(SText &text); + + QT3DS_IMPLEMENT_REF_COUNT_ADDREF_RELEASE_OVERRIDE(m_foundation.getAllocator()) + + void AddSystemFontDirectory(const char8_t *dir) override; + void AddProjectFontDirectory(const char8_t *dir) override; + void ClearProjectFontDirectories() override; + ITextRenderer &GetTextRenderer(NVRenderContext &) override; + void EndFrame() override; + + // Unused methods: + void PreloadFonts() override; + void BeginPreloadFonts(IThreadPool &, IPerfTimer &) override; + void EndPreloadFonts() override; + void ReloadFonts() override; + + NVConstDataRef<SRendererFontEntry> GetProjectFontList() override; + + Option<CRegisteredString> GetFontNameForFont(CRegisteredString) override; + Option<CRegisteredString> GetFontNameForFont(const char8_t *) override; + + STextDimensions MeasureText(const STextRenderInfo &, QT3DSF32, + const char8_t *) override; + + STextTextureDetails RenderText(const STextRenderInfo &, + NVRenderTexture2D &) override; + + STextTextureDetails RenderText(const STextRenderInfo &, NVRenderPathFontItem &, + NVRenderPathFontSpecification &) override; + + SRenderTextureAtlasDetails RenderText(const STextRenderInfo &) override; + + void BeginFrame() override; + + QT3DSI32 CreateTextureAtlas() override; + STextTextureAtlasEntryDetails RenderAtlasEntry(QT3DSU32, NVRenderTexture2D &) override; + +private: + IQt3DSRenderContext *m_context = nullptr; + QHash<size_t, QHash<Q3DSDistanceFieldGlyphCache::TextureInfo *, GlyphInfo>> m_glyphCache; + QHash<size_t, Q3DSDistanceFieldMesh> m_meshCache; + + Q3DSFontDatabase m_fontDatabase; + Q3DSDistanceFieldGlyphCacheManager m_glyphCacheManager; + + Q3DSDistanceFieldShader m_shader; + Q3DSDistanceFieldDropShadowShader m_dropShadowShader; + QVector<size_t> m_renderedGlyphs; + + QStringList m_systemDirs; + QStringList m_projectDirs; + + qreal m_pixelRatio = 0.0; + + NVFoundationBase &m_foundation; + volatile QT3DSI32 mRefCount = 0; +}; + +} +} + +#endif // Qt version check + +#endif // QT3DSDISTANCEFIELDRENDERER_H |