diff options
Diffstat (limited to 'source/gameengine/VideoTexture/ImageViewport.cpp')
| -rw-r--r-- | source/gameengine/VideoTexture/ImageViewport.cpp | 99 |
1 files changed, 82 insertions, 17 deletions
diff --git a/source/gameengine/VideoTexture/ImageViewport.cpp b/source/gameengine/VideoTexture/ImageViewport.cpp index 820a019832e..8852c190053 100644 --- a/source/gameengine/VideoTexture/ImageViewport.cpp +++ b/source/gameengine/VideoTexture/ImageViewport.cpp @@ -45,14 +45,22 @@ // constructor -ImageViewport::ImageViewport (void) : m_alpha(false), m_texInit(false) +ImageViewport::ImageViewport (PyRASOffScreen *offscreen) : m_alpha(false), m_texInit(false) { // get viewport rectangle - RAS_Rect rect = KX_GetActiveEngine()->GetCanvas()->GetWindowArea(); - m_viewport[0] = rect.GetLeft(); - m_viewport[1] = rect.GetBottom(); - m_viewport[2] = rect.GetWidth(); - m_viewport[3] = rect.GetHeight(); + if (offscreen) { + m_viewport[0] = 0; + m_viewport[1] = 0; + m_viewport[2] = offscreen->ofs->GetWidth(); + m_viewport[3] = offscreen->ofs->GetHeight(); + } + else { + RAS_Rect rect = KX_GetActiveEngine()->GetCanvas()->GetWindowArea(); + m_viewport[0] = rect.GetLeft(); + m_viewport[1] = rect.GetBottom(); + m_viewport[2] = rect.GetWidth(); + m_viewport[3] = rect.GetHeight(); + } //glGetIntegerv(GL_VIEWPORT, m_viewport); // create buffer for viewport image @@ -60,7 +68,7 @@ ImageViewport::ImageViewport (void) : m_alpha(false), m_texInit(false) // float (1 float = 4 bytes per pixel) m_viewportImage = new BYTE [4 * getViewportSize()[0] * getViewportSize()[1]]; // set attributes - setWhole(false); + setWhole((offscreen) ? true : false); } // destructor @@ -126,25 +134,26 @@ void ImageViewport::setPosition (GLint pos[2]) // capture image from viewport -void ImageViewport::calcImage (unsigned int texId, double ts) +void ImageViewport::calcViewport (unsigned int texId, double ts, unsigned int format) { // if scale was changed if (m_scaleChange) // reset image init(m_capSize[0], m_capSize[1]); // if texture wasn't initialized - if (!m_texInit) { + if (!m_texInit && texId != 0) { // initialize it loadTexture(texId, m_image, m_size); m_texInit = true; } // if texture can be directly created - if (texId != 0 && m_pyfilter == NULL && m_capSize[0] == calcSize(m_capSize[0]) - && m_capSize[1] == calcSize(m_capSize[1]) && !m_flip && !m_zbuff && !m_depth) + if (texId != 0 && m_pyfilter == NULL && m_size[0] == m_capSize[0] && + m_size[1] == m_capSize[1] && !m_flip && !m_zbuff && !m_depth) { // just copy current viewport to texture glBindTexture(GL_TEXTURE_2D, texId); glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_upLeft[0], m_upLeft[1], (GLsizei)m_capSize[0], (GLsizei)m_capSize[1]); + glBindTexture(GL_TEXTURE_2D, 0); // image is not available m_avail = false; } @@ -176,11 +185,33 @@ void ImageViewport::calcImage (unsigned int texId, double ts) // get frame buffer data if (m_alpha) { - glReadPixels(m_upLeft[0], m_upLeft[1], (GLsizei)m_capSize[0], (GLsizei)m_capSize[1], GL_RGBA, - GL_UNSIGNED_BYTE, m_viewportImage); - // filter loaded data - FilterRGBA32 filt; - filterImage(filt, m_viewportImage, m_capSize); + // as we are reading the pixel in the native format, we can read directly in the image buffer + // if we are sure that no processing is needed on the image + if (m_size[0] == m_capSize[0] && + m_size[1] == m_capSize[1] && + !m_flip && + !m_pyfilter) + { + glReadPixels(m_upLeft[0], m_upLeft[1], (GLsizei)m_capSize[0], (GLsizei)m_capSize[1], format, + GL_UNSIGNED_BYTE, m_image); + m_avail = true; + } + else if (!m_pyfilter) { + glReadPixels(m_upLeft[0], m_upLeft[1], (GLsizei)m_capSize[0], (GLsizei)m_capSize[1], format, + GL_UNSIGNED_BYTE, m_viewportImage); + FilterRGBA32 filt; + filterImage(filt, m_viewportImage, m_capSize); + } + else { + glReadPixels(m_upLeft[0], m_upLeft[1], (GLsizei)m_capSize[0], (GLsizei)m_capSize[1], GL_RGBA, + GL_UNSIGNED_BYTE, m_viewportImage); + FilterRGBA32 filt; + filterImage(filt, m_viewportImage, m_capSize); + if (format == GL_BGRA) { + // in place byte swapping + swapImageBR(); + } + } } else { glReadPixels(m_upLeft[0], m_upLeft[1], (GLsizei)m_capSize[0], (GLsizei)m_capSize[1], GL_RGB, @@ -188,12 +219,46 @@ void ImageViewport::calcImage (unsigned int texId, double ts) // filter loaded data FilterRGB24 filt; filterImage(filt, m_viewportImage, m_capSize); + if (format == GL_BGRA) { + // in place byte swapping + swapImageBR(); + } } } } } } +bool ImageViewport::loadImage(unsigned int *buffer, unsigned int size, unsigned int format, double ts) +{ + unsigned int *tmp_image; + bool ret; + + // if scale was changed + if (m_scaleChange) { + // reset image + init(m_capSize[0], m_capSize[1]); + } + + // size must be identical + if (size < getBuffSize()) + return false; + + if (m_avail) { + // just copy + return ImageBase::loadImage(buffer, size, format, ts); + } + else { + tmp_image = m_image; + m_image = buffer; + calcViewport(0, ts, format); + ret = m_avail; + m_image = tmp_image; + // since the image was not loaded to our buffer, it's not valid + m_avail = false; + } + return ret; +} // cast Image pointer to ImageViewport @@ -336,7 +401,7 @@ int ImageViewport_setCaptureSize(PyImage *self, PyObject *value, void *closure) // methods structure static PyMethodDef imageViewportMethods[] = { // methods from ImageBase class - {"refresh", (PyCFunction)Image_refresh, METH_NOARGS, "Refresh image - invalidate its current content"}, + {"refresh", (PyCFunction)Image_refresh, METH_VARARGS, "Refresh image - invalidate its current content"}, {NULL} }; // attributes structure |