diff options
author | Laszlo Agocs <laszlo.agocs@theqtcompany.com> | 2015-09-15 15:51:43 +0200 |
---|---|---|
committer | Laszlo Agocs <laszlo.agocs@theqtcompany.com> | 2015-10-14 14:11:07 +0000 |
commit | 715a8e6f4ed3f8fd5c6d98c88b6260e5c1dba428 (patch) | |
tree | 47f599c93661e8b2d91f8f1be101e78a7989db9d /src | |
parent | 281121697340084f7d385eab530f41916789b94d (diff) |
Avoid image copy in toTexture() on GLES 3.0 as well
The default backingstore implementation is now cleaned for ES_2 ifdefs.
All the checks are now done at runtime and ES 3.0+ is included as well
for the efficient, QImage::copy()-less path.
For embedded a customized backingstore is used so the change has to be
done separately there.
This should result in a slight improvement for QOpenGLWidget/QQuickWidget
when running on GLES 3.x.
Task-number: QTBUG-37624
Change-Id: I107330c25a993c5cdcd92e4ebdc17ae172a03da8
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
Diffstat (limited to 'src')
-rw-r--r-- | src/gui/painting/qplatformbackingstore.cpp | 29 | ||||
-rw-r--r-- | src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp | 58 |
2 files changed, 53 insertions, 34 deletions
diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index c86fdebea5..dd02e24676 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -48,6 +48,16 @@ #include <qpa/qplatformgraphicsbuffer.h> #include <qpa/qplatformgraphicsbufferhelper.h> +#ifndef GL_TEXTURE_BASE_LEVEL +#define GL_TEXTURE_BASE_LEVEL 0x813C +#endif +#ifndef GL_TEXTURE_MAX_LEVEL +#define GL_TEXTURE_MAX_LEVEL 0x813D +#endif +#ifndef GL_UNPACK_ROW_LENGTH +#define GL_UNPACK_ROW_LENGTH 0x0CF2 +#endif + QT_BEGIN_NAMESPACE class QPlatformBackingStorePrivate @@ -311,12 +321,11 @@ void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®i funcs->glDeleteTextures(1, &d_ptr->textureId); funcs->glGenTextures(1, &d_ptr->textureId); funcs->glBindTexture(GL_TEXTURE_2D, d_ptr->textureId); -#ifndef QT_OPENGL_ES_2 - if (!QOpenGLContext::currentContext()->isOpenGLES()) { + QOpenGLContext *ctx = QOpenGLContext::currentContext(); + if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0); funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0); } -#endif funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); @@ -435,18 +444,16 @@ GLuint QPlatformBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textu image = image.convertToFormat(QImage::Format_RGBA8888); QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - if (resized) { if (d_ptr->textureId) funcs->glDeleteTextures(1, &d_ptr->textureId); funcs->glGenTextures(1, &d_ptr->textureId); funcs->glBindTexture(GL_TEXTURE_2D, d_ptr->textureId); -#ifndef QT_OPENGL_ES_2 - if (!QOpenGLContext::currentContext()->isOpenGLES()) { + QOpenGLContext *ctx = QOpenGLContext::currentContext(); + if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0); funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0); } -#endif funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); @@ -459,15 +466,13 @@ GLuint QPlatformBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textu QRect imageRect = image.rect(); QRect rect = dirtyRegion.boundingRect() & imageRect; -#ifndef QT_OPENGL_ES_2 - if (!QOpenGLContext::currentContext()->isOpenGLES()) { + QOpenGLContext *ctx = QOpenGLContext::currentContext(); + if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, image.width()); funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, image.constScanLine(rect.y()) + rect.x() * 4); funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); - } else -#endif - { + } else { // if the rect is wide enough it's cheaper to just // extend it instead of doing an image copy if (rect.width() >= imageRect.width() / 2) { diff --git a/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp b/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp index 8ce1ed2d2b..bb3ea6981a 100644 --- a/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp +++ b/src/platformsupport/platformcompositor/qopenglcompositorbackingstore.cpp @@ -39,6 +39,10 @@ #include "qopenglcompositorbackingstore_p.h" #include "qopenglcompositor_p.h" +#ifndef GL_UNPACK_ROW_LENGTH +#define GL_UNPACK_ROW_LENGTH 0x0CF2 +#endif + QT_BEGIN_NAMESPACE /*! @@ -100,29 +104,39 @@ void QOpenGLCompositorBackingStore::updateTexture() QRegion fixed; QRect imageRect = m_image.rect(); - foreach (const QRect &rect, m_dirty.rects()) { - // intersect with image rect to be sure - QRect r = imageRect & rect; - - // if the rect is wide enough it's cheaper to just - // extend it instead of doing an image copy - if (r.width() >= imageRect.width() / 2) { - r.setX(0); - r.setWidth(imageRect.width()); + QOpenGLContext *ctx = QOpenGLContext::currentContext(); + if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { + foreach (const QRect &rect, m_dirty.rects()) { + QRect r = imageRect & rect; + glPixelStorei(GL_UNPACK_ROW_LENGTH, m_image.width()); + glTexSubImage2D(GL_TEXTURE_2D, 0, r.x(), r.y(), r.width(), r.height(), GL_RGBA, GL_UNSIGNED_BYTE, + m_image.constScanLine(r.y()) + r.x() * 4); + glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); } - - fixed |= r; - } - - foreach (const QRect &rect, fixed.rects()) { - // if the sub-rect is full-width we can pass the image data directly to - // OpenGL instead of copying, since there's no gap between scanlines - if (rect.width() == imageRect.width()) { - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, - m_image.constScanLine(rect.y())); - } else { - glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, - m_image.copy(rect).constBits()); + } else { + foreach (const QRect &rect, m_dirty.rects()) { + // intersect with image rect to be sure + QRect r = imageRect & rect; + + // if the rect is wide enough it's cheaper to just + // extend it instead of doing an image copy + if (r.width() >= imageRect.width() / 2) { + r.setX(0); + r.setWidth(imageRect.width()); + } + + fixed |= r; + } + foreach (const QRect &rect, fixed.rects()) { + // if the sub-rect is full-width we can pass the image data directly to + // OpenGL instead of copying, since there's no gap between scanlines + if (rect.width() == imageRect.width()) { + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, + m_image.constScanLine(rect.y())); + } else { + glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, + m_image.copy(rect).constBits()); + } } } |