mirror of
https://github.com/OpenMW/openmw.git
synced 2025-11-04 06:26:39 +00:00
95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
#include "imagerotate.hpp"
|
|
|
|
#include <OgreRoot.h>
|
|
#include <OgreSceneManager.h>
|
|
#include <OgreImage.h>
|
|
#include <OgreTexture.h>
|
|
#include <OgreRenderTarget.h>
|
|
#include <OgreCamera.h>
|
|
#include <OgreTextureUnitState.h>
|
|
#include <OgreHardwarePixelBuffer.h>
|
|
#include <OgreTechnique.h>
|
|
#include <OgreMaterialManager.h>
|
|
#include <OgreRectangle2D.h>
|
|
#include <OgreSceneNode.h>
|
|
#include <OgreTextureManager.h>
|
|
#include <OgreRenderTexture.h>
|
|
#include <OgreViewport.h>
|
|
|
|
using namespace Ogre;
|
|
using namespace OEngine::Render;
|
|
|
|
void ImageRotate::rotate(const std::string& sourceImage, const std::string& destImage, const float angle)
|
|
{
|
|
Root* root = Ogre::Root::getSingletonPtr();
|
|
|
|
std::string destImageRot = std::string(destImage) + std::string("_rot");
|
|
|
|
SceneManager* sceneMgr = root->createSceneManager(ST_GENERIC);
|
|
Camera* camera = sceneMgr->createCamera("ImageRotateCamera");
|
|
|
|
MaterialPtr material = MaterialManager::getSingleton().create("ImageRotateMaterial", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
|
|
material->getTechnique(0)->getPass(0)->setLightingEnabled(false);
|
|
material->getTechnique(0)->getPass(0)->setDepthCheckEnabled(false);
|
|
TextureUnitState* tus = material->getTechnique(0)->getPass(0)->createTextureUnitState(sourceImage);
|
|
Degree deg(angle);
|
|
tus->setTextureRotate(Radian(deg.valueRadians()));
|
|
tus->setTextureAddressingMode(TextureUnitState::TAM_BORDER);
|
|
tus->setTextureBorderColour(ColourValue(0, 0, 0, 0));
|
|
|
|
Rectangle2D* rect = new Rectangle2D(true);
|
|
rect->setCorners(-1.0, 1.0, 1.0, -1.0);
|
|
rect->setMaterial("ImageRotateMaterial");
|
|
// Render the background before everything else
|
|
rect->setRenderQueueGroup(RENDER_QUEUE_BACKGROUND);
|
|
|
|
// Use infinite AAB to always stay visible
|
|
AxisAlignedBox aabInf;
|
|
aabInf.setInfinite();
|
|
rect->setBoundingBox(aabInf);
|
|
|
|
// Attach background to the scene
|
|
SceneNode* node = sceneMgr->getRootSceneNode()->createChildSceneNode();
|
|
node->attachObject(rect);
|
|
|
|
// retrieve image width and height
|
|
TexturePtr sourceTexture = TextureManager::getSingleton().getByName(sourceImage);
|
|
unsigned int width = sourceTexture->getWidth();
|
|
unsigned int height = sourceTexture->getHeight();
|
|
|
|
TexturePtr destTextureRot = TextureManager::getSingleton().createManual(
|
|
destImageRot,
|
|
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
|
|
TEX_TYPE_2D,
|
|
width, height,
|
|
0,
|
|
PF_A8B8G8R8,
|
|
TU_RENDERTARGET);
|
|
|
|
RenderTarget* rtt = destTextureRot->getBuffer()->getRenderTarget();
|
|
rtt->setAutoUpdated(false);
|
|
Viewport* vp = rtt->addViewport(camera);
|
|
vp->setOverlaysEnabled(false);
|
|
vp->setShadowsEnabled(false);
|
|
vp->setBackgroundColour(ColourValue(0,0,0,0));
|
|
|
|
rtt->update();
|
|
|
|
//copy the rotated image to a static texture
|
|
TexturePtr destTexture = TextureManager::getSingleton().createManual(
|
|
destImage,
|
|
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
|
|
TEX_TYPE_2D,
|
|
width, height,
|
|
0,
|
|
PF_A8B8G8R8,
|
|
Ogre::TU_STATIC);
|
|
|
|
destTexture->getBuffer()->blit(destTextureRot->getBuffer());
|
|
|
|
// remove all the junk we've created
|
|
TextureManager::getSingleton().remove(destImageRot);
|
|
MaterialManager::getSingleton().remove("ImageRotateMaterial");
|
|
root->destroySceneManager(sceneMgr);
|
|
delete rect;
|
|
}
|