1 files changed, 111 insertions, 0 deletions
diff --git a/src/graphics/BmpTextureMover.cpp b/src/graphics/BmpTextureMover.cpp
new file mode 100644
index 0000000..dfb4f27
--- /dev/null
+++ b/src/graphics/BmpTextureMover.cpp
@@ -0,0 +1,111 @@
+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#include "BmpTextureMover.h"
+
+#include "Bitmap.h"
+#include "GLTexture.h"
+#include "FBO.h"
+#include "Filterfliprgb.h"
+
+#include "../base/Logger.h"
+#include "../base/Exception.h"
+
+#include "GLContext.h"
+
+#include <iostream>
+#include <cstring>
+
+using namespace std;
+using namespace boost;
+
+namespace avg {
+    
+BmpTextureMover::BmpTextureMover(const IntPoint& size, PixelFormat pf)
+    : TextureMover(size, pf)
+{
+    m_pBmp = BitmapPtr(new Bitmap(size, pf));
+}
+
+BmpTextureMover::~BmpTextureMover()
+{
+}
+
+void BmpTextureMover::moveBmpToTexture(BitmapPtr pBmp, GLTexture& tex)
+{
+    AVG_ASSERT(pBmp->getSize() == tex.getSize());
+    AVG_ASSERT(getSize() == pBmp->getSize());
+    AVG_ASSERT(pBmp->getPixelFormat() == getPF());
+    tex.activate();
+    unsigned char * pStartPos = pBmp->getPixels();
+    IntPoint size = tex.getSize();
+    glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, size.x, size.y,
+            tex.getGLFormat(getPF()), tex.getGLType(getPF()), 
+            pStartPos);
+    tex.setDirty();
+    tex.generateMipmaps();
+    GLContext::checkError("BmpTextureMover::moveBmpToTexture: glTexSubImage2D()");
+}
+
+BitmapPtr BmpTextureMover::moveTextureToBmp(GLTexture& tex, int mipmapLevel)
+{
+    GLContext* pContext = GLContext::getCurrent();
+    unsigned fbo = pContext->genFBO();
+    glproc::BindFramebuffer(GL_FRAMEBUFFER, fbo);
+    glproc::FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
+            tex.getID(), mipmapLevel);
+    FBO::checkError("BmpTextureMover::moveTextureToBmp");
+    IntPoint size = tex.getMipmapSize(mipmapLevel);
+    BitmapPtr pBmp(new Bitmap(size, getPF()));
+    if (GLContext::getMain()->isGLES() && getPF() == B5G6R5) {
+        BitmapPtr pTmpBmp(new Bitmap(size, R8G8B8A8));
+        glReadPixels(0, 0, size.x, size.y, GL_RGBA, GL_UNSIGNED_BYTE, pTmpBmp->getPixels());
+        FilterFlipRGB().applyInPlace(pTmpBmp);
+        pBmp->copyPixels(*pTmpBmp);
+    } else {
+        int glPixelFormat = tex.getGLFormat(getPF());
+        glReadPixels(0, 0, size.x, size.y, glPixelFormat, tex.getGLType(getPF()), 
+                pBmp->getPixels());
+    }
+    GLContext::checkError("BmpTextureMover::moveTextureToBmp: glReadPixels()");
+    glproc::FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 
+            0, 0);
+    pContext->returnFBOToCache(fbo);
+    glproc::BindFramebuffer(GL_FRAMEBUFFER, 0);
+    return pBmp;
+
+}
+
+BitmapPtr BmpTextureMover::lock()
+{
+    return m_pBmp;
+}
+
+void BmpTextureMover::unlock()
+{
+}
+
+void BmpTextureMover::moveToTexture(GLTexture& tex)
+{
+    moveBmpToTexture(m_pBmp, tex);
+}
+
+}