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Texture.cpp
Package: OpenGL动画演示(包含代码).rar [view]
Upload User: sz83729876
Upload Date: 2013-03-07
Package Size: 4140k
Code Size: 2k
Category:
OpenGL program
Development Platform:
Windows_Unix
- #include "Texture.h"
- #include "Image.h"
- Texture::Texture()
- {
- m_strTextureDir = "";
- m_iFilter = GL_LINEAR;
- m_bMips = false;
- }
- unsigned int Texture::UploadTexture( CImage* pImage )
- {
- unsigned int iTexture=0;
- int uType;
- switch( pImage->m_dwDepth )
- {
- case 24:
- uType = GL_RGB;
- break;
- case 32:
- uType = GL_RGBA;
- break;
- default:
- return 0xffff;
- }
- glGenTextures( 1, &iTexture );
- glBindTexture( GL_TEXTURE_2D, iTexture );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
- if (m_bMips)
- {
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
- gluBuild2DMipmaps( GL_TEXTURE_2D, uType, pImage->m_dwWidth, pImage->m_dwHeight,
- uType, GL_UNSIGNED_BYTE, pImage->m_cData );
- } else
- {
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, m_iFilter );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, m_iFilter );
- glTexImage2D( GL_TEXTURE_2D, 0, uType, pImage->m_dwWidth, pImage->m_dwHeight,
- 0, uType, GL_UNSIGNED_BYTE, pImage->m_cData );
- }
- return iTexture;
- }
- unsigned int Texture::LoadTexture( std::string strFile )
- {
- unsigned int iTexture;
- CImage* pImage;
- strFile = m_strTextureDir + strFile;
- pImage = new CImage();
- if (!pImage->LoadFromJPEG( strFile ))
- return 0xffff;
- iTexture = UploadTexture( pImage );
- delete pImage;
- Log::Print( "Texture loaded "%s"...", strFile.c_str() );
- return iTexture;
- }