diff options
Diffstat (limited to 'src/opengl/qgl.cpp')
| -rw-r--r-- | src/opengl/qgl.cpp | 108 |
1 files changed, 66 insertions, 42 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 25285b5..466e851 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -397,8 +397,7 @@ static inline GLint qgluProject(GLdouble objx, GLdouble objy, GLdouble objz, \i \link setDirectRendering() Direct rendering:\endlink Enabled. \i \link setOverlay() Overlay:\endlink Disabled. \i \link setPlane() Plane:\endlink 0 (i.e., normal plane). - \i \link setSampleBuffers() Multisample buffers:\endlink Enabled on - OpenGL/ES 2.0, disabled on other platforms. + \i \link setSampleBuffers() Multisample buffers:\endlink Disabled. \endlist */ @@ -2064,6 +2063,29 @@ QGLTexture *QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G // #define QGL_BIND_TEXTURE_DEBUG +// map from Qt's ARGB endianness-dependent format to GL's big-endian RGBA layout +static inline void qgl_byteSwapImage(QImage &img, GLenum pixel_type) +{ + const int width = img.width(); + const int height = img.height(); + + if (pixel_type == GL_UNSIGNED_INT_8_8_8_8_REV + || (pixel_type == GL_UNSIGNED_BYTE && QSysInfo::ByteOrder == QSysInfo::LittleEndian)) + { + for (int i = 0; i < height; ++i) { + uint *p = (uint *) img.scanLine(i); + for (int x = 0; x < width; ++x) + p[x] = ((p[x] << 16) & 0xff0000) | ((p[x] >> 16) & 0xff) | (p[x] & 0xff00ff00); + } + } else { + for (int i = 0; i < height; ++i) { + uint *p = (uint *) img.scanLine(i); + for (int x = 0; x < width; ++x) + p[x] = (p[x] << 8) | ((p[x] >> 24) & 0xff); + } + } +} + QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, GLint internalFormat, const qint64 key, QGLContext::BindOptions options) { @@ -2216,23 +2238,7 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G // 32 in the switch above is for the RGB16 case, where we set // the format to GL_RGB Q_ASSERT(img.depth() == 32); - const int width = img.width(); - const int height = img.height(); - - if (pixel_type == GL_UNSIGNED_INT_8_8_8_8_REV - || (pixel_type == GL_UNSIGNED_BYTE && QSysInfo::ByteOrder == QSysInfo::LittleEndian)) { - for (int i=0; i < height; ++i) { - uint *p = (uint *) img.scanLine(i); - for (int x=0; x<width; ++x) - p[x] = ((p[x] << 16) & 0xff0000) | ((p[x] >> 16) & 0xff) | (p[x] & 0xff00ff00); - } - } else { - for (int i=0; i < height; ++i) { - uint *p = (uint *) img.scanLine(i); - for (int x=0; x<width; ++x) - p[x] = (p[x] << 8) | ((p[x] >> 24) & 0xff); - } - } + qgl_byteSwapImage(img, pixel_type); } #ifdef QT_OPENGL_ES // OpenGL/ES requires that the internal and external formats be identical. @@ -3804,6 +3810,11 @@ bool QGLWidget::event(QEvent *e) } #if defined(QT_OPENGL_ES) + // A re-parent is likely to destroy the X11 window and re-create it. It is important + // that we free the EGL surface _before_ the winID changes - otherwise we can leak. + if (e->type() == QEvent::ParentAboutToChange) + d->glcx->d_func()->destroyEglSurfaceForDevice(); + if ((e->type() == QEvent::ParentChange) || (e->type() == QEvent::WindowStateChange)) { // The window may have been re-created during re-parent or state change - if so, the EGL // surface will need to be re-created. @@ -4291,6 +4302,7 @@ static void qt_save_gl_state() glDisable(GL_CULL_FACE); glDisable(GL_LIGHTING); glDisable(GL_STENCIL_TEST); + glDisable(GL_DEPTH_TEST); glEnable(GL_BLEND); glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); } @@ -4344,6 +4356,10 @@ static void qt_gl_draw_text(QPainter *p, int x, int y, const QString &str, \note This function clears the stencil buffer. \note This function is not supported on OpenGL/ES systems. + + \note This function temporarily disables depth-testing when the + text is drawn. + \l{Overpainting Example}{Overpaint} with QPainter::drawText() instead. */ @@ -4434,6 +4450,13 @@ void QGLWidget::renderText(int x, int y, const QString &str, const QFont &font, have the labels move with the model as it is rotated etc. \note This function is not supported on OpenGL/ES systems. + + \note If depth testing is enabled before this function is called, + then the drawn text will be depth-tested against the models that + have already been drawn in the scene. Use \c{glDisable(GL_DEPTH_TEST)} + before calling this function to annotate the models without + depth-testing the text. + \l{Overpainting Example}{Overpaint} with QPainter::drawText() instead. */ void QGLWidget::renderText(double x, double y, double z, const QString &str, const QFont &font, int) @@ -4823,38 +4846,39 @@ QGLWidget::QGLWidget(QGLContext *context, QWidget *parent, void QGLExtensions::init_extensions() { - QList<QByteArray> extensions = QByteArray(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS))).split(' '); - if (extensions.contains("GL_ARB_texture_rectangle")) + QGLExtensionMatcher extensions(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS))); + + if (extensions.match("GL_ARB_texture_rectangle")) glExtensions |= TextureRectangle; - if (extensions.contains("GL_ARB_multisample")) + if (extensions.match("GL_ARB_multisample")) glExtensions |= SampleBuffers; - if (extensions.contains("GL_SGIS_generate_mipmap")) + if (extensions.match("GL_SGIS_generate_mipmap")) glExtensions |= GenerateMipmap; - if (extensions.contains("GL_ARB_texture_compression")) + if (extensions.match("GL_ARB_texture_compression")) glExtensions |= TextureCompression; - if (extensions.contains("GL_EXT_texture_compression_s3tc")) + if (extensions.match("GL_EXT_texture_compression_s3tc")) glExtensions |= DDSTextureCompression; - if (extensions.contains("GL_OES_compressed_ETC1_RGB8_texture")) + if (extensions.match("GL_OES_compressed_ETC1_RGB8_texture")) glExtensions |= ETC1TextureCompression; - if (extensions.contains("GL_IMG_texture_compression_pvrtc")) + if (extensions.match("GL_IMG_texture_compression_pvrtc")) glExtensions |= PVRTCTextureCompression; - if (extensions.contains("GL_ARB_fragment_program")) + if (extensions.match("GL_ARB_fragment_program")) glExtensions |= FragmentProgram; - if (extensions.contains("GL_ARB_fragment_shader")) + if (extensions.match("GL_ARB_fragment_shader")) glExtensions |= FragmentShader; - if (extensions.contains("GL_ARB_texture_mirrored_repeat")) + if (extensions.match("GL_ARB_texture_mirrored_repeat")) glExtensions |= MirroredRepeat; - if (extensions.contains("GL_EXT_framebuffer_object")) + if (extensions.match("GL_EXT_framebuffer_object")) glExtensions |= FramebufferObject; - if (extensions.contains("GL_EXT_stencil_two_side")) + if (extensions.match("GL_EXT_stencil_two_side")) glExtensions |= StencilTwoSide; - if (extensions.contains("GL_EXT_stencil_wrap")) + if (extensions.match("GL_EXT_stencil_wrap")) glExtensions |= StencilWrap; - if (extensions.contains("GL_EXT_packed_depth_stencil")) + if (extensions.match("GL_EXT_packed_depth_stencil")) glExtensions |= PackedDepthStencil; - if (extensions.contains("GL_NV_float_buffer")) + if (extensions.match("GL_NV_float_buffer")) glExtensions |= NVFloatBuffer; - if (extensions.contains("GL_ARB_pixel_buffer_object")) + if (extensions.match("GL_ARB_pixel_buffer_object")) glExtensions |= PixelBufferObject; #if defined(QT_OPENGL_ES_2) glExtensions |= FramebufferObject; @@ -4862,26 +4886,26 @@ void QGLExtensions::init_extensions() glExtensions |= FragmentShader; #endif #if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) - if (extensions.contains("GL_OES_framebuffer_object")) + if (extensions.match("GL_OES_framebuffer_object")) glExtensions |= FramebufferObject; #endif #if defined(QT_OPENGL_ES) - if (extensions.contains("GL_OES_packed_depth_stencil")) + if (extensions.match("GL_OES_packed_depth_stencil")) glExtensions |= PackedDepthStencil; #endif - if (extensions.contains("GL_ARB_framebuffer_object")) { + if (extensions.match("GL_ARB_framebuffer_object")) { // ARB_framebuffer_object also includes EXT_framebuffer_blit. glExtensions |= FramebufferObject; glExtensions |= FramebufferBlit; } - if (extensions.contains("GL_EXT_framebuffer_blit")) + if (extensions.match("GL_EXT_framebuffer_blit")) glExtensions |= FramebufferBlit; - if (extensions.contains("GL_ARB_texture_non_power_of_two")) + if (extensions.match("GL_ARB_texture_non_power_of_two")) glExtensions |= NPOTTextures; - if (extensions.contains("GL_EXT_bgra")) + if (extensions.match("GL_EXT_bgra")) glExtensions |= BGRATextureFormat; } |