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Diffstat (limited to 'indra/newview/lldynamictexture.cpp')
| -rw-r--r-- | indra/newview/lldynamictexture.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/indra/newview/lldynamictexture.cpp b/indra/newview/lldynamictexture.cpp new file mode 100644 index 0000000000..49fcce4911 --- /dev/null +++ b/indra/newview/lldynamictexture.cpp @@ -0,0 +1,215 @@ +/** + * @file lldynamictexture.cpp + * @brief Implementation of LLDynamicTexture class + * + * Copyright (c) 2001-$CurrentYear$, Linden Research, Inc. + * $License$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "lldynamictexture.h" +#include "linked_lists.h" +#include "llimagegl.h" +#include "llglheaders.h" +#include "llviewerwindow.h" +#include "llviewercamera.h" +#include "llviewercontrol.h" +#include "llviewerimage.h" + +// static +LLLinkedList<LLDynamicTexture> LLDynamicTexture::sInstances[ LLDynamicTexture::ORDER_COUNT ]; +S32 LLDynamicTexture::sNumRenders = 0; + +//----------------------------------------------------------------------------- +// LLDynamicTexture() +//----------------------------------------------------------------------------- +LLDynamicTexture::LLDynamicTexture(S32 width, S32 height, S32 components, EOrder order, BOOL clamp) : + mWidth(width), + mHeight(height), + mComponents(components), + mTexture(NULL), + mLastBindTime(0), + mClamp(clamp) +{ + llassert((1 <= components) && (components <= 4)); + + generateGLTexture(); + + llassert( 0 <= order && order < ORDER_COUNT ); + LLDynamicTexture::sInstances[ order ].addData(this); +} + +//----------------------------------------------------------------------------- +// LLDynamicTexture() +//----------------------------------------------------------------------------- +LLDynamicTexture::~LLDynamicTexture() +{ + for( S32 order = 0; order < ORDER_COUNT; order++ ) + { + LLDynamicTexture::sInstances[order].removeData(this); // will fail in all but one case. + } +} + +//----------------------------------------------------------------------------- +// generateGLTexture() +//----------------------------------------------------------------------------- +void LLDynamicTexture::generateGLTexture() +{ + if (mComponents < 1 || mComponents > 4) + { + llerrs << "Bad number of components in dynamic texture: " << mComponents << llendl; + } + + LLPointer<LLImageRaw> raw_image = new LLImageRaw(mWidth, mHeight, mComponents); + mTexture = new LLImageGL(mWidth, mHeight, mComponents, FALSE); + mTexture->createGLTexture(0, raw_image); + mTexture->setClamp(mClamp, mClamp); +} + +void LLDynamicTexture::generateGLTexture(LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format, BOOL swap_bytes) +{ + if (mComponents < 1 || mComponents > 4) + { + llerrs << "Bad number of components in dynamic texture: " << mComponents << llendl; + } + + LLPointer<LLImageRaw> raw_image = new LLImageRaw(mWidth, mHeight, mComponents); + mTexture = new LLImageGL(mWidth, mHeight, mComponents, FALSE); + mTexture->setExplicitFormat(internal_format, primary_format, type_format, swap_bytes); + mTexture->createGLTexture(0, raw_image); + mTexture->setClamp(mClamp, mClamp); +} + +//----------------------------------------------------------------------------- +// render() +//----------------------------------------------------------------------------- +BOOL LLDynamicTexture::render() +{ + return FALSE; +} + +//----------------------------------------------------------------------------- +// preRender() +//----------------------------------------------------------------------------- +void LLDynamicTexture::preRender(BOOL clear_depth) +{ + { + // force rendering to on-screen portion of frame buffer + LLCoordScreen window_pos; + gViewerWindow->getWindow()->getPosition( &window_pos ); + mOrigin.set(0, gViewerWindow->getWindowDisplayHeight() - mHeight); // top left corner + + if (window_pos.mX < 0) + { + mOrigin.mX = -window_pos.mX; + } + if (window_pos.mY < 0) + { + mOrigin.mY += window_pos.mY; + } + + LLImageGL::unbindTexture(0, GL_TEXTURE_2D); + } + // Set up camera + mCamera.setOrigin(*gCamera); + mCamera.setAxes(*gCamera); + mCamera.setAspect(gCamera->getAspect()); + mCamera.setView(gCamera->getView()); + mCamera.setNear(gCamera->getNear()); + + glViewport(mOrigin.mX, mOrigin.mY, mWidth, mHeight); + if (clear_depth) + { + glClear(GL_DEPTH_BUFFER_BIT); + } +} + +//----------------------------------------------------------------------------- +// postRender() +//----------------------------------------------------------------------------- +void LLDynamicTexture::postRender(BOOL success) +{ + { + if (success) + { + success = mTexture->setSubImageFromFrameBuffer(0, 0, mOrigin.mX, mOrigin.mY, mWidth, mHeight); + } + } + + // restore viewport + gViewerWindow->setupViewport(); + + // restore camera + gCamera->setOrigin(mCamera); + gCamera->setAxes(mCamera); + gCamera->setAspect(mCamera.getAspect()); + gCamera->setView(mCamera.getView()); + gCamera->setNear(mCamera.getNear()); +} + +//----------------------------------------------------------------------------- +// bindTexture() +//----------------------------------------------------------------------------- +void LLDynamicTexture::bindTexture() +{ + LLViewerImage::bindTexture(mTexture,0); +} + +void LLDynamicTexture::unbindTexture() +{ + LLImageGL::unbindTexture(0, GL_TEXTURE_2D); +} + +//----------------------------------------------------------------------------- +// static +// updateDynamicTextures() +// Calls update on each dynamic texture. Calls each group in order: "first," then "middle," then "last." +//----------------------------------------------------------------------------- +BOOL LLDynamicTexture::updateAllInstances() +{ + sNumRenders = 0; + if (gGLManager.mIsDisabled) + { + return TRUE; + } + + BOOL result = FALSE; + for( S32 order = 0; order < ORDER_COUNT; order++ ) + { + for (LLDynamicTexture *dynamicTexture = LLDynamicTexture::sInstances[order].getFirstData(); + dynamicTexture; + dynamicTexture = LLDynamicTexture::sInstances[order].getNextData()) + { + if (dynamicTexture->needsRender()) + { + dynamicTexture->preRender(); + if (dynamicTexture->render()) + { + result = TRUE; + gViewerWindow->finishFastFrame(); + sNumRenders++; + } + dynamicTexture->postRender(result); + } + } + } + + return result; +} + +//----------------------------------------------------------------------------- +// static +// destroyGL() +//----------------------------------------------------------------------------- +void LLDynamicTexture::destroyGL() +{ +} + +//----------------------------------------------------------------------------- +// static +// restoreGL() +//----------------------------------------------------------------------------- +void LLDynamicTexture::restoreGL() +{ +} |