diff options
Diffstat (limited to 'src/declarative/scenegraph/coreapi/qsgtexture.cpp')
| -rw-r--r-- | src/declarative/scenegraph/coreapi/qsgtexture.cpp | 330 |
1 files changed, 0 insertions, 330 deletions
diff --git a/src/declarative/scenegraph/coreapi/qsgtexture.cpp b/src/declarative/scenegraph/coreapi/qsgtexture.cpp deleted file mode 100644 index 7902ab7416..0000000000 --- a/src/declarative/scenegraph/coreapi/qsgtexture.cpp +++ /dev/null @@ -1,330 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#define GL_GLEXT_PROTOTYPES - -#include "qsgtexture_p.h" -#include <qglfunctions.h> - -QT_BEGIN_NAMESPACE - -QSGTexturePrivate::QSGTexturePrivate() - : wrapChanged(false) - , filteringChanged(false) - , horizontalWrap(QSGTexture::ClampToEdge) - , verticalWrap(QSGTexture::ClampToEdge) - , mipmapMode(QSGTexture::None) - , filterMode(QSGTexture::Nearest) -{ -} - -QSGTexture::QSGTexture() - : QObject(*(new QSGTexturePrivate)) - , m_ref_count(0) -{ - -} - -QSGTexture::~QSGTexture() -{ - -} - - -/*! - \fn void QSGTexture::setImage(const QImage &image) - - This function may be calld from arbitrary an arbitrary thread and may not - use GL calls. - */ - - -/*! - \fn void QSGTexture::bind() - - Call this function to bind this texture to the current texture - target. - - Binding a texture may also include uploading the texture data from - a previously set QImage. - */ - -void QSGTexture::removeFromAtlas() -{ - // default textures are not in atlasses, so do nothing... -} - -/*! - Returns weither this texture is part of an atlas or not. - - The default implementation returns false. - */ -bool QSGTexture::isAtlasTexture() const -{ - return false; -} - - -/*! - Returns the rectangle inside textureSize() that this texture - represents in normalized coordinates. - - The default implementation returns a rect at position (0, 0) with - width and height of 1. - */ -QRectF QSGTexture::textureSubRect() const -{ - return QRectF(0, 0, 1, 1); -} - -/*! - \fn bool QSGTexture::hasMipmaps() const - - Returns true if the texture data contains mipmap levels. - */ - - -/*! - Sets wether mipmapping should be used when sampling from this texture. - */ -void QSGTexture::setMipmapFiltering(Filtering filter) -{ - Q_D(QSGTexture); - if (d->mipmapMode != (uint) filter) { - d->mipmapMode = filter; - d->filteringChanged = true; - } -} - -/*! - Returns wether mipmapping should be used when sampling from this texture. - */ -QSGTexture::Filtering QSGTexture::mipmapFiltering() const -{ - return (QSGTexture::Filtering) d_func()->mipmapMode; -} - - - -void QSGTexture::setFiltering(QSGTexture::Filtering filter) -{ - Q_D(QSGTexture); - if (d->filterMode != (uint) filter) { - d->filterMode = filter; - d->filteringChanged = true; - } -} - -QSGTexture::Filtering QSGTexture::filtering() const -{ - return (QSGTexture::Filtering) d_func()->filterMode; -} - - - -void QSGTexture::setHorizontalWrapMode(WrapMode hwrap) -{ - Q_D(QSGTexture); - if ((uint) hwrap != d->horizontalWrap) { - d->horizontalWrap = hwrap; - d->wrapChanged = true; - } -} - -QSGTexture::WrapMode QSGTexture::horizontalWrapMode() const -{ - return (QSGTexture::WrapMode) d_func()->horizontalWrap; -} - - - -void QSGTexture::setVerticalWrapMode(WrapMode vwrap) -{ - Q_D(QSGTexture); - if ((uint) vwrap != d->verticalWrap) { - d->verticalWrap = vwrap; - d->wrapChanged = true; - } -} - -QSGTexture::WrapMode QSGTexture::verticalWrapMode() const -{ - return (QSGTexture::WrapMode) d_func()->verticalWrap; -} - - -/*! - Update the texture state to match the filtering, mipmap and wrap options - currently set. - - If \a force is true, all properties will be updated regardless of weither - they have changed or not. - */ -void QSGTexture::updateBindOptions(bool force) -{ - Q_D(QSGTexture); - if (force || d->filteringChanged) { - bool linear = d->filterMode == Linear; - GLint minFilter = linear ? GL_LINEAR : GL_NEAREST; - GLint magFilter = linear ? GL_LINEAR : GL_NEAREST; - - if (hasMipmaps()) { - if (d->mipmapMode == Nearest) - minFilter = linear ? GL_LINEAR_MIPMAP_NEAREST : GL_NEAREST_MIPMAP_NEAREST; - else if (d->mipmapMode == Linear) - minFilter = linear ? GL_LINEAR_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_LINEAR; - } - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, magFilter); - d->filteringChanged = false; - } - - if (force || d->wrapChanged) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, d->horizontalWrap == Repeat ? GL_REPEAT : GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, d->verticalWrap == Repeat ? GL_REPEAT : GL_CLAMP_TO_EDGE); - d->wrapChanged = false; - } -} - - -void QSGTextureRef::deref() -{ - // ### For multithreaded renderer we need to handle this better... Post something to the renderer thread, for instance - if (m_texture && !--m_texture->m_ref_count) { - delete m_texture; - } -} - - - -QSGPlainTexture::QSGPlainTexture() - : QSGTexture() - , m_texture_id(0) - , m_has_alpha(false) - , m_has_mipmaps(false) - , m_owns_texture(true) -{ -} - - -QSGPlainTexture::~QSGPlainTexture() -{ - if (m_texture_id && m_owns_texture) - glDeleteTextures(1, &m_texture_id); -} - - -static void swizzleBGRAToRGBA(QImage *image) -{ - const int width = image->width(); - const int height = image->height(); - for (int i = 0; i < height; ++i) { - uint *p = (uint *) image->scanLine(i); - for (int x = 0; x < width; ++x) - p[x] = ((p[x] << 16) & 0xff0000) | ((p[x] >> 16) & 0xff) | (p[x] & 0xff00ff00); - } -} - -void QSGPlainTexture::setImage(const QImage &image) -{ - m_image = image.convertToFormat(QImage::Format_ARGB32_Premultiplied); -#ifdef QT_OPENGL_ES - swizzleBGRAToRGBA(&m_image); -#endif - - m_texture_size = image.size(); - m_has_alpha = image.hasAlphaChannel(); - m_dirty_texture = true; - } - -void QSGPlainTexture::setTextureId(int id) -{ - m_texture_id = id; - m_dirty_texture = false; -} - - -void QSGPlainTexture::bind() -{ - if (!m_dirty_texture) { - glBindTexture(GL_TEXTURE_2D, m_texture_id); - updateBindOptions(); - return; - } - - m_dirty_texture = false; - - if (m_texture_id) - glDeleteTextures(1, &m_texture_id); - - if (m_image.isNull()) { - m_texture_id = 0; - m_texture_size = QSize(); - m_has_mipmaps = false; - m_has_alpha = false; - return; - } - - glGenTextures(1, &m_texture_id); - glBindTexture(GL_TEXTURE_2D, m_texture_id); - - // ### TODO: check for out-of-memory situations... - int w = m_image.width(); - int h = m_image.height(); - -#ifdef QT_OPENGL_ES - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_image.constBits()); -#else - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_BGRA, GL_UNSIGNED_BYTE, m_image.constBits()); -#endif - - if (m_has_mipmaps) { - const QGLContext *ctx = QGLContext::currentContext(); - ctx->functions()->glGenerateMipmap(GL_TEXTURE_2D); - } - - m_texture_size = QSize(w, h); - m_texture_rect = QRectF(0, 0, 1, 1); - - updateBindOptions(true); - } - -QT_END_NAMESPACE |