C++ (Cpp) RsdFrameBufferObj::setActive示例

示例#1

文件： rsdAllocation.cpp 项目： drod2169/platform_frameworks_base

static void rsdAllocationSyncFromFBO(const Context *rsc, const Allocation *alloc) {
    if (!alloc->getIsScript()) {
        return; // nothing to sync
    }

    RsdHal *dc = (RsdHal *)rsc->mHal.drv;
    RsdFrameBufferObj *lastFbo = dc->gl.currentFrameBuffer;

    DrvAllocation *drv = (DrvAllocation *)alloc->mHal.drv;
    if (!drv->textureID && !drv->renderTargetID) {
        return; // nothing was rendered here yet, so nothing to sync
    }
    if (drv->readBackFBO == NULL) {
        drv->readBackFBO = new RsdFrameBufferObj();
        drv->readBackFBO->setColorTarget(drv, 0);
        drv->readBackFBO->setDimensions(alloc->getType()->getDimX(),
                                        alloc->getType()->getDimY());
    }

    // Bind the framebuffer object so we can read back from it
    drv->readBackFBO->setActive(rsc);

    // Do the readback
    RSD_CALL_GL(glReadPixels, 0, 0, alloc->getType()->getDimX(), alloc->getType()->getDimY(),
                 drv->glFormat, drv->glType, alloc->getPtr());

    // Revert framebuffer to its original
    lastFbo->setActive(rsc);
}

示例#2

文件： rsdFrameBuffer.cpp 项目： cpflayan/android_frameworks_rs-dt

void rsdFrameBufferSetActive(const Context *rsc, const FBOCache *fb) {
    setDepthAttachment(rsc, fb);
    setColorAttachment(rsc, fb);

    RsdFrameBufferObj *fbo = (RsdFrameBufferObj *)fb->mHal.drv;
    if (fb->mHal.state.colorTargets[0]) {
        fbo->setDimensions(fb->mHal.state.colorTargets[0]->getType()->getDimX(),
                           fb->mHal.state.colorTargets[0]->getType()->getDimY());
    } else if (fb->mHal.state.depthTarget) {
        fbo->setDimensions(fb->mHal.state.depthTarget->getType()->getDimX(),
                           fb->mHal.state.depthTarget->getType()->getDimY());
    }

    fbo->setActive(rsc);
}