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| |
| #include "qsgcompressedatlastexture_p.h" |
| |
| #include <QtCore/QVarLengthArray> |
| #include <QtCore/QElapsedTimer> |
| #include <QtCore/QtMath> |
| |
| #include <QtGui/QOpenGLContext> |
| #include <QtGui/QGuiApplication> |
| #include <QtGui/QScreen> |
| #include <QtGui/QSurface> |
| #include <QtGui/QWindow> |
| #include <QtGui/QOpenGLFunctions> |
| #include <QtGui/QOpenGLTexture> |
| #include <QDebug> |
| |
| #include <private/qqmlglobal_p.h> |
| #include <private/qquickprofiler_p.h> |
| #include <private/qsgtexture_p.h> |
| #include <private/qsgcompressedtexture_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| static QElapsedTimer qsg_renderer_timer; |
| |
| namespace QSGCompressedAtlasTexture |
| { |
| |
| Atlas::Atlas(const QSize &size, uint format) |
| : QSGOpenGLAtlasTexture::AtlasBase(size) |
| , m_format(format) |
| { |
| } |
| |
| Atlas::~Atlas() |
| { |
| } |
| |
| Texture *Atlas::create(const QByteArray &data, int dataLength, int dataOffset, const QSize &size, const QSize &paddedSize) |
| { |
| // No need to lock, as manager already locked it. |
| QRect rect = m_allocator.allocate(paddedSize); |
| if (rect.width() > 0 && rect.height() > 0) { |
| Texture *t = new Texture(this, rect, data, dataLength, dataOffset, size); |
| m_pending_uploads << t; |
| return t; |
| } |
| return nullptr; |
| } |
| |
| void Atlas::generateTexture() |
| { |
| int bytesPerBlock = 8; |
| switch (m_format) { |
| case QOpenGLTexture::RGBA8_ETC2_EAC: |
| case QOpenGLTexture::RGBA_DXT3: |
| case QOpenGLTexture::RGBA_DXT5: |
| bytesPerBlock = 16; |
| default: |
| break; |
| } |
| |
| QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); |
| funcs->glCompressedTexImage2D(GL_TEXTURE_2D, 0, m_format, |
| m_size.width(), m_size.height(), 0, |
| (m_size.width() / 4 * m_size.height() / 4) * bytesPerBlock, |
| nullptr); |
| } |
| |
| void Atlas::uploadPendingTexture(int i) |
| { |
| Texture *texture = static_cast<Texture*>(m_pending_uploads.at(i)); |
| |
| const QRect &r = texture->atlasSubRect(); |
| |
| QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); |
| funcs->glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, |
| r.x(), r.y(), r.width(), r.height(), m_format, |
| texture->sizeInBytes(), |
| texture->data().constData() + texture->dataOffset()); |
| |
| qCDebug(QSG_LOG_TIME_TEXTURE).nospace() << "compressed atlastexture uploaded in: " << qsg_renderer_timer.elapsed() |
| << "ms (" << texture->textureSize().width() << "x" |
| << texture->textureSize().height() << ")"; |
| |
| // TODO: consider releasing the data (as is done in the regular atlas)? |
| // The advantage of keeping this data around is that it makes it much easier |
| // to remove the texture from the atlas |
| } |
| |
| Texture::Texture(Atlas *atlas, const QRect &textureRect, const QByteArray &data, int dataLength, int dataOffset, const QSize &size) |
| : QSGOpenGLAtlasTexture::TextureBase(atlas, textureRect) |
| , m_nonatlas_texture(nullptr) |
| , m_data(data) |
| , m_size(size) |
| , m_dataLength(dataLength) |
| , m_dataOffset(dataOffset) |
| { |
| float w = atlas->size().width(); |
| float h = atlas->size().height(); |
| QRect nopad = atlasSubRect(); |
| // offset by half-pixel to prevent bleeding when scaling |
| m_texture_coords_rect = QRectF((nopad.x() + .5) / w, |
| (nopad.y() + .5) / h, |
| (nopad.width() - 1.) / w, |
| (nopad.height() - 1.) / h); |
| } |
| |
| Texture::~Texture() |
| { |
| delete m_nonatlas_texture; |
| } |
| |
| bool Texture::hasAlphaChannel() const |
| { |
| return QSGCompressedTexture::formatIsOpaque(static_cast<Atlas*>(m_atlas)->format()); |
| } |
| |
| QSGTexture *Texture::removedFromAtlas() const |
| { |
| if (m_nonatlas_texture) { |
| m_nonatlas_texture->setMipmapFiltering(mipmapFiltering()); |
| m_nonatlas_texture->setFiltering(filtering()); |
| return m_nonatlas_texture; |
| } |
| |
| if (!m_data.isEmpty()) { |
| QTextureFileData texData; |
| texData.setData(m_data); |
| texData.setSize(m_size); |
| texData.setGLInternalFormat(static_cast<Atlas*>(m_atlas)->format()); |
| texData.setDataLength(m_dataLength); |
| texData.setDataOffset(m_dataOffset); |
| m_nonatlas_texture = new QSGCompressedTexture(texData); |
| m_nonatlas_texture->setMipmapFiltering(mipmapFiltering()); |
| m_nonatlas_texture->setFiltering(filtering()); |
| } |
| |
| return m_nonatlas_texture; |
| } |
| |
| } |
| |
| QT_END_NAMESPACE |