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Trass3r/gist:6713302

Created September 26, 2013 12:13
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quickly dump OpenGL texture
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gistfile1.cpp
glBindTexture(GL_TEXTURE_2D, textureID);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
GLint width, height, level = 0;
glGetTexLevelParameteriv(GL_TEXTURE_2D, level, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, level, GL_TEXTURE_HEIGHT, &height);
std::unique_ptr<unsigned short[]> data(new unsigned short[width * height]);
glGetTexImage(GL_TEXTURE_2D, level, GL_RED, GL_UNSIGNED_SHORT, data.get());
glPixelStorei(GL_PACK_ALIGNMENT, 4);
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