diff options
Diffstat (limited to 'src/quick/scenegraph/qsgcontext.cpp')
-rw-r--r-- | src/quick/scenegraph/qsgcontext.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/quick/scenegraph/qsgcontext.cpp b/src/quick/scenegraph/qsgcontext.cpp index c47250662b..6d327b8d80 100644 --- a/src/quick/scenegraph/qsgcontext.cpp +++ b/src/quick/scenegraph/qsgcontext.cpp @@ -47,7 +47,9 @@ #include <QtQuick/private/qsgdefaultimagenode_p.h> #include <QtQuick/private/qsgdefaultglyphnode_p.h> #include <QtQuick/private/qsgdistancefieldglyphnode_p.h> +#include <QtQuick/private/qsgdistancefieldglyphnode_p_p.h> #include <QtQuick/private/qsgshareddistancefieldglyphcache_p.h> +#include <QtQuick/QSGFlatColorMaterial> #include <QtQuick/private/qsgtexture_p.h> #include <QtQuick/private/qquickpixmapcache_p.h> @@ -261,9 +263,35 @@ void QSGContext::initialize(QOpenGLContext *context) Q_ASSERT(!d->gl); d->gl = context; + precompileMaterials(); + emit initialized(); } +#define QSG_PRECOMPILE_MATERIAL(name) { name m; prepareMaterial(&m); } + +/* + * Some glsl compilers take their time compiling materials, and + * the way the scene graph is being processed, these materials + * get compiled when they are first taken into use. This can + * easily lead to skipped frames. By precompiling the most + * common materials, we potentially add a few milliseconds to the + * start up, and reduce the chance of avoiding skipped frames + * later on. + */ +void QSGContext::precompileMaterials() +{ + if (qEnvironmentVariableIsEmpty("QSG_NO_MATERIAL_PRELOADING")) { + QSG_PRECOMPILE_MATERIAL(QSGVertexColorMaterial); + QSG_PRECOMPILE_MATERIAL(QSGFlatColorMaterial); + QSG_PRECOMPILE_MATERIAL(QSGOpaqueTextureMaterial); + QSG_PRECOMPILE_MATERIAL(QSGTextureMaterial); + QSG_PRECOMPILE_MATERIAL(SmoothTextureMaterial); + QSG_PRECOMPILE_MATERIAL(SmoothColorMaterial); + QSG_PRECOMPILE_MATERIAL(QSGDistanceFieldTextMaterial); + } +} + /*! Returns if the scene graph context is ready or not, meaning that it has a valid |