/**************************************************************************** Copyright (c) 2015 Chukong Technologies Inc. http://www.cocos2d-x.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "3d/CCTextureCube.h" #include "platform/CCImage.h" #include "platform/CCFileUtils.h" #include "renderer/ccGLStateCache.h" NS_CC_BEGIN unsigned char* getImageData(Image* img, Texture2D::PixelFormat& ePixFmt) { unsigned char* pTmpData = img->getData(); unsigned int* inPixel32 = nullptr; unsigned char* inPixel8 = nullptr; unsigned short* outPixel16 = nullptr; bool bHasAlpha = img->hasAlpha(); size_t uBPP = img->getBitPerPixel(); int nWidth = img->getWidth(); int nHeight = img->getHeight(); // compute pixel format if (bHasAlpha) { ePixFmt = Texture2D::PixelFormat::DEFAULT; } else { if (uBPP >= 8) { ePixFmt = Texture2D::PixelFormat::RGB888; } else { ePixFmt = Texture2D::PixelFormat::RGB565; } } // Repack the pixel data into the right format unsigned int uLen = nWidth * nHeight; if (ePixFmt == Texture2D::PixelFormat::RGB565) { if (bHasAlpha) { // Convert "RRRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA" to "RRRRRGGGGGGBBBBB" inPixel32 = (unsigned int*)img->getData(); pTmpData = new unsigned char[nWidth * nHeight * 2]; outPixel16 = (unsigned short*)pTmpData; for (unsigned int i = 0; i < uLen; ++i, ++inPixel32) { *outPixel16++ = ((((*inPixel32 >> 0) & 0xFF) >> 3) << 11) | // R ((((*inPixel32 >> 8) & 0xFF) >> 2) << 5) | // G ((((*inPixel32 >> 16) & 0xFF) >> 3) << 0); // B } } else { // Convert "RRRRRRRRGGGGGGGGBBBBBBBB" to "RRRRRGGGGGGBBBBB" pTmpData = new unsigned char[nWidth * nHeight * 2]; outPixel16 = (unsigned short*)pTmpData; inPixel8 = (unsigned char*)img->getData(); for (unsigned int i = 0; i < uLen; ++i) { unsigned char R = *inPixel8++; unsigned char G = *inPixel8++; unsigned char B = *inPixel8++; *outPixel16++ = ((R >> 3) << 11) | // R ((G >> 2) << 5) | // G ((B >> 3) << 0); // B } } } if (bHasAlpha && ePixFmt == Texture2D::PixelFormat::RGB888) { // Convert "RRRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA" to "RRRRRRRRGGGGGGGGBBBBBBBB" inPixel32 = (unsigned int*)img->getData(); pTmpData = new unsigned char[nWidth * nHeight * 3]; unsigned char* outPixel8 = pTmpData; for (unsigned int i = 0; i < uLen; ++i, ++inPixel32) { *outPixel8++ = (*inPixel32 >> 0) & 0xFF; // R *outPixel8++ = (*inPixel32 >> 8) & 0xFF; // G *outPixel8++ = (*inPixel32 >> 16) & 0xFF; // B } } return pTmpData; } Image* createImage(const std::string& path) { // Split up directory and filename // MUTEX: // Needed since addImageAsync calls this method from a different thread std::string fullpath = FileUtils::getInstance()->fullPathForFilename(path); if (fullpath.size() == 0) { return nullptr; } // all images are handled by UIImage except PVR extension that is handled by our own handler Image* image = nullptr; do { image = new (std::nothrow) Image(); CC_BREAK_IF(nullptr == image); bool bRet = image->initWithImageFile(fullpath); CC_BREAK_IF(!bRet); } while (0); return image; } TextureCube::TextureCube() { _imgPath.resize(6); } TextureCube::~TextureCube() { } TextureCube* TextureCube::create(const std::string& positive_x, const std::string& negative_x, const std::string& positive_y, const std::string& negative_y, const std::string& positive_z, const std::string& negative_z) { auto ret = new (std::nothrow) TextureCube(); if (ret && ret->init(positive_x, negative_x, positive_y, negative_y, positive_z, negative_z)) { ret->autorelease(); return ret; } CC_SAFE_DELETE(ret); return nullptr; } bool TextureCube::init(const std::string& positive_x, const std::string& negative_x, const std::string& positive_y, const std::string& negative_y, const std::string& positive_z, const std::string& negative_z) { _imgPath[0] = positive_x; _imgPath[1] = negative_x; _imgPath[2] = positive_y; _imgPath[3] = negative_y; _imgPath[4] = positive_z; _imgPath[5] = negative_z; std::vector images(6); images[0] = createImage(positive_x); images[1] = createImage(negative_x); images[2] = createImage(positive_y); images[3] = createImage(negative_y); images[4] = createImage(positive_z); images[5] = createImage(negative_z); GLuint handle; glGenTextures(1, &handle); GL::bindTextureN(0, handle, GL_TEXTURE_CUBE_MAP); for (int i = 0; i < 6; i++) { Image* img = images[i]; Texture2D::PixelFormat ePixelFmt; unsigned char* pData = getImageData(img, ePixelFmt); if (ePixelFmt == Texture2D::PixelFormat::RGBA8888 || ePixelFmt == Texture2D::PixelFormat::DEFAULT) { glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, // level GL_RGBA, // internal format img->getWidth(), // width img->getHeight(), // height 0, // border GL_RGBA, // format GL_UNSIGNED_BYTE, // type pData); // pixel data } else if (ePixelFmt == Texture2D::PixelFormat::RGB888) { glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, // level GL_RGB, // internal format img->getWidth(), // width img->getHeight(), // height 0, // border GL_RGB, // format GL_UNSIGNED_BYTE, // type pData); // pixel data } if (pData != img->getData()) delete[] pData; } glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR); _name = handle; GL::bindTextureN(0, 0, GL_TEXTURE_CUBE_MAP); for (auto img: images) { CC_SAFE_RELEASE(img); } return true; } void TextureCube::setTexParameters(const TexParams& texParams) { CCASSERT(_name != 0, __FUNCTION__); GL::bindTextureN(0, _name, GL_TEXTURE_CUBE_MAP); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, texParams.minFilter); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, texParams.magFilter); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, texParams.wrapS); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, texParams.wrapT); GL::bindTextureN(0, 0, GL_TEXTURE_CUBE_MAP); } bool TextureCube::reloadTexture() { return init(_imgPath[0], _imgPath[1], _imgPath[2], _imgPath[3], _imgPath[4], _imgPath[5]); } NS_CC_END