diff options
Diffstat (limited to 'source/gameengine/VideoTexture/ImageRender.cpp')
| -rw-r--r-- | source/gameengine/VideoTexture/ImageRender.cpp | 200 |
1 files changed, 166 insertions, 34 deletions
diff --git a/source/gameengine/VideoTexture/ImageRender.cpp b/source/gameengine/VideoTexture/ImageRender.cpp index a374fbba2df..9991bf42a9f 100644 --- a/source/gameengine/VideoTexture/ImageRender.cpp +++ b/source/gameengine/VideoTexture/ImageRender.cpp @@ -43,6 +43,8 @@ #include "RAS_CameraData.h" #include "RAS_MeshObject.h" #include "RAS_Polygon.h" +#include "RAS_IOffScreen.h" +#include "RAS_ISync.h" #include "BLI_math.h" #include "ImageRender.h" @@ -51,11 +53,12 @@ #include "Exception.h" #include "Texture.h" -ExceptionID SceneInvalid, CameraInvalid, ObserverInvalid; +ExceptionID SceneInvalid, CameraInvalid, ObserverInvalid, OffScreenInvalid; ExceptionID MirrorInvalid, MirrorSizeInvalid, MirrorNormalInvalid, MirrorHorizontal, MirrorTooSmall; ExpDesc SceneInvalidDesc(SceneInvalid, "Scene object is invalid"); ExpDesc CameraInvalidDesc(CameraInvalid, "Camera object is invalid"); ExpDesc ObserverInvalidDesc(ObserverInvalid, "Observer object is invalid"); +ExpDesc OffScreenInvalidDesc(OffScreenInvalid, "Offscreen object is invalid"); ExpDesc MirrorInvalidDesc(MirrorInvalid, "Mirror object is invalid"); ExpDesc MirrorSizeInvalidDesc(MirrorSizeInvalid, "Mirror has no vertex or no size"); ExpDesc MirrorNormalInvalidDesc(MirrorNormalInvalid, "Cannot determine mirror plane"); @@ -63,12 +66,15 @@ ExpDesc MirrorHorizontalDesc(MirrorHorizontal, "Mirror is horizontal in local sp ExpDesc MirrorTooSmallDesc(MirrorTooSmall, "Mirror is too small"); // constructor -ImageRender::ImageRender (KX_Scene *scene, KX_Camera * camera) : - ImageViewport(), +ImageRender::ImageRender (KX_Scene *scene, KX_Camera * camera, PyRASOffScreen * offscreen) : + ImageViewport(offscreen), m_render(true), + m_done(false), m_scene(scene), m_camera(camera), m_owncamera(false), + m_offscreen(offscreen), + m_sync(NULL), m_observer(NULL), m_mirror(NULL), m_clip(100.f), @@ -81,6 +87,10 @@ ImageRender::ImageRender (KX_Scene *scene, KX_Camera * camera) : m_engine = KX_GetActiveEngine(); m_rasterizer = m_engine->GetRasterizer(); m_canvas = m_engine->GetCanvas(); + // keep a reference to the offscreen buffer + if (m_offscreen) { + Py_INCREF(m_offscreen); + } } // destructor @@ -88,6 +98,9 @@ ImageRender::~ImageRender (void) { if (m_owncamera) m_camera->Release(); + if (m_sync) + delete m_sync; + Py_XDECREF(m_offscreen); } // get background color @@ -121,30 +134,41 @@ void ImageRender::setBackgroundFromScene (KX_Scene *scene) // capture image from viewport -void ImageRender::calcImage (unsigned int texId, double ts) +void ImageRender::calcViewport (unsigned int texId, double ts, unsigned int format) { - if (m_rasterizer->GetDrawingMode() != RAS_IRasterizer::KX_TEXTURED || // no need for texture - m_camera->GetViewport() || // camera must be inactive - m_camera == m_scene->GetActiveCamera()) - { - // no need to compute texture in non texture rendering - m_avail = false; - return; - } // render the scene from the camera - Render(); - // get image from viewport - ImageViewport::calcImage(texId, ts); - // restore OpenGL state - m_canvas->EndFrame(); + if (!m_done) { + if (!Render()) { + return; + } + } + else if (m_offscreen) { + m_offscreen->ofs->Bind(RAS_IOffScreen::RAS_OFS_BIND_READ); + } + // wait until all render operations are completed + WaitSync(); + // get image from viewport (or FBO) + ImageViewport::calcViewport(texId, ts, format); + if (m_offscreen) { + m_offscreen->ofs->Unbind(); + } } -void ImageRender::Render() +bool ImageRender::Render() { RAS_FrameFrustum frustum; - if (!m_render) - return; + if (!m_render || + m_rasterizer->GetDrawingMode() != RAS_IRasterizer::KX_TEXTURED || // no need for texture + m_camera->GetViewport() || // camera must be inactive + m_camera == m_scene->GetActiveCamera()) + { + // no need to compute texture in non texture rendering + return false; + } + + if (!m_scene->IsShadowDone()) + m_engine->RenderShadowBuffers(m_scene); if (m_mirror) { @@ -164,7 +188,7 @@ void ImageRender::Render() MT_Scalar observerDistance = mirrorPlaneDTerm - observerWorldPos.dot(mirrorWorldZ); // if distance < 0.01 => observer is on wrong side of mirror, don't render if (observerDistance < 0.01) - return; + return false; // set camera world position = observerPos + normal * 2 * distance MT_Point3 cameraWorldPos = observerWorldPos + (MT_Scalar(2.0)*observerDistance)*mirrorWorldZ; m_camera->GetSGNode()->SetLocalPosition(cameraWorldPos); @@ -215,7 +239,15 @@ void ImageRender::Render() RAS_Rect area = m_canvas->GetWindowArea(); // The screen area that ImageViewport will copy is also the rendering zone - m_canvas->SetViewPort(m_position[0], m_position[1], m_position[0]+m_capSize[0]-1, m_position[1]+m_capSize[1]-1); + if (m_offscreen) { + // bind the fbo and set the viewport to full size + m_offscreen->ofs->Bind(RAS_IOffScreen::RAS_OFS_BIND_RENDER); + // this is needed to stop crashing in canvas check + m_canvas->UpdateViewPort(0, 0, m_offscreen->ofs->GetWidth(), m_offscreen->ofs->GetHeight()); + } + else { + m_canvas->SetViewPort(m_position[0], m_position[1], m_position[0]+m_capSize[0]-1, m_position[1]+m_capSize[1]-1); + } m_canvas->ClearColor(m_background[0], m_background[1], m_background[2], m_background[3]); m_canvas->ClearBuffer(RAS_ICanvas::COLOR_BUFFER|RAS_ICanvas::DEPTH_BUFFER); m_rasterizer->BeginFrame(m_engine->GetClockTime()); @@ -292,17 +324,18 @@ void ImageRender::Render() MT_Transform camtrans(m_camera->GetWorldToCamera()); MT_Matrix4x4 viewmat(camtrans); - m_rasterizer->SetViewMatrix(viewmat, m_camera->NodeGetWorldOrientation(), m_camera->NodeGetWorldPosition(), m_camera->GetCameraData()->m_perspective); + m_rasterizer->SetViewMatrix(viewmat, m_camera->NodeGetWorldOrientation(), m_camera->NodeGetWorldPosition(), m_camera->NodeGetLocalScaling(), m_camera->GetCameraData()->m_perspective); m_camera->SetModelviewMatrix(viewmat); // restore the stereo mode now that the matrix is computed m_rasterizer->SetStereoMode(stereomode); - if (stereomode == RAS_IRasterizer::RAS_STEREO_QUADBUFFERED) { - // In QUAD buffer stereo mode, the GE render pass ends with the right eye on the right buffer - // but we need to draw on the left buffer to capture the render - // TODO: implement an explicit function in rasterizer to restore the left buffer. - m_rasterizer->SetEye(RAS_IRasterizer::RAS_STEREO_LEFTEYE); - } + if (m_rasterizer->Stereo()) { + // stereo mode change render settings that disturb this render, cancel them all + // we don't need to restore them as they are set before each frame render. + glDrawBuffer(GL_BACK_LEFT); + glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); + glDisable(GL_POLYGON_STIPPLE); + } m_scene->CalculateVisibleMeshes(m_rasterizer,m_camera); @@ -314,8 +347,48 @@ void ImageRender::Render() // restore the canvas area now that the render is completed m_canvas->GetWindowArea() = area; + m_canvas->EndFrame(); + + // In case multisample is active, blit the FBO + if (m_offscreen) + m_offscreen->ofs->Blit(); + // end of all render operations, let's create a sync object just in case + if (m_sync) { + // a sync from a previous render, should not happen + delete m_sync; + m_sync = NULL; + } + m_sync = m_rasterizer->CreateSync(RAS_ISync::RAS_SYNC_TYPE_FENCE); + // remember that we have done render + m_done = true; + // the image is not available at this stage + m_avail = false; + return true; +} + +void ImageRender::Unbind() +{ + if (m_offscreen) + { + m_offscreen->ofs->Unbind(); + } } +void ImageRender::WaitSync() +{ + if (m_sync) { + m_sync->Wait(); + // done with it, deleted it + delete m_sync; + m_sync = NULL; + } + if (m_offscreen) { + // this is needed to finalize the image if the target is a texture + m_offscreen->ofs->MipMap(); + } + // all rendered operation done and complete, invalidate render for next time + m_done = false; +} // cast Image pointer to ImageRender inline ImageRender * getImageRender (PyImage *self) @@ -337,11 +410,13 @@ static int ImageRender_init(PyObject *pySelf, PyObject *args, PyObject *kwds) PyObject *scene; // camera object PyObject *camera; + // offscreen buffer object + PyRASOffScreen *offscreen = NULL; // parameter keywords - static const char *kwlist[] = {"sceneObj", "cameraObj", NULL}; + static const char *kwlist[] = {"sceneObj", "cameraObj", "ofsObj", NULL}; // get parameters - if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO", - const_cast<char**>(kwlist), &scene, &camera)) + if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|O", + const_cast<char**>(kwlist), &scene, &camera, &offscreen)) return -1; try { @@ -357,11 +432,16 @@ static int ImageRender_init(PyObject *pySelf, PyObject *args, PyObject *kwds) // throw exception if camera is not available if (cameraPtr == NULL) THRWEXCP(CameraInvalid, S_OK); + if (offscreen) { + if (Py_TYPE(offscreen) != &PyRASOffScreen_Type) { + THRWEXCP(OffScreenInvalid, S_OK); + } + } // get pointer to image structure PyImage *self = reinterpret_cast<PyImage*>(pySelf); // create source object if (self->m_image != NULL) delete self->m_image; - self->m_image = new ImageRender(scenePtr, cameraPtr); + self->m_image = new ImageRender(scenePtr, cameraPtr, offscreen); } catch (Exception & exp) { @@ -372,6 +452,55 @@ static int ImageRender_init(PyObject *pySelf, PyObject *args, PyObject *kwds) return 0; } +static PyObject *ImageRender_refresh(PyImage *self, PyObject *args) +{ + ImageRender *imageRender = getImageRender(self); + + if (!imageRender) { + PyErr_SetString(PyExc_TypeError, "Incomplete ImageRender() object"); + return NULL; + } + if (PyArg_ParseTuple(args, "")) { + // refresh called with no argument. + // For other image objects it simply invalidates the image buffer + // For ImageRender it triggers a render+sync + // Note that this only makes sense when doing offscreen render on texture + if (!imageRender->isDone()) { + if (!imageRender->Render()) { + Py_RETURN_FALSE; + } + // as we are not trying to read the pixels, just unbind + imageRender->Unbind(); + } + // wait until all render operations are completed + // this will also finalize the texture + imageRender->WaitSync(); + Py_RETURN_TRUE; + } + else { + // fallback on standard processing + PyErr_Clear(); + return Image_refresh(self, args); + } +} + +// refresh image +static PyObject *ImageRender_render(PyImage *self) +{ + ImageRender *imageRender = getImageRender(self); + + if (!imageRender) { + PyErr_SetString(PyExc_TypeError, "Incomplete ImageRender() object"); + return NULL; + } + if (!imageRender->Render()) { + Py_RETURN_FALSE; + } + // we are not reading the pixels now, unbind + imageRender->Unbind(); + Py_RETURN_TRUE; +} + // get background color static PyObject *getBackground (PyImage *self, void *closure) @@ -410,7 +539,8 @@ static int setBackground(PyImage *self, PyObject *value, void *closure) // methods structure static PyMethodDef imageRenderMethods[] = { // methods from ImageBase class - {"refresh", (PyCFunction)Image_refresh, METH_NOARGS, "Refresh image - invalidate its current content"}, + {"refresh", (PyCFunction)ImageRender_refresh, METH_VARARGS, "Refresh image - invalidate its current content after optionally transferring its content to a target buffer"}, + {"render", (PyCFunction)ImageRender_render, METH_NOARGS, "Render scene - run before refresh() to performs asynchronous render"}, {NULL} }; // attributes structure @@ -601,7 +731,9 @@ static PyGetSetDef imageMirrorGetSets[] = ImageRender::ImageRender (KX_Scene *scene, KX_GameObject *observer, KX_GameObject *mirror, RAS_IPolyMaterial *mat) : ImageViewport(), m_render(false), + m_done(false), m_scene(scene), + m_offscreen(NULL), m_observer(observer), m_mirror(mirror), m_clip(100.f) |