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    <p>You can load a bitmap and a tga file using these..</p> <pre><code>#include &lt;vector&gt; #include &lt;fstream&gt; #ifdef __APPLE__ #include &lt;OpenGL/gl.h&gt; #include &lt;OpenGL/glu.h&gt; #endif #ifdef _WIN32 #include &lt;GL/gl.h&gt; #include &lt;GL/glu.h&gt; #endif typedef union PixelInfo { std::uint32_t Colour; struct { std::uint8_t B, G, R, A; }; } *PPixelInfo; class BMP { private: std::uint32_t width, height; std::uint16_t BitsPerPixel; std::vector&lt;std::uint8_t&gt; Pixels; public: BMP(const char* FilePath); std::vector&lt;std::uint8_t&gt; GetPixels() const {return this-&gt;Pixels;} std::uint32_t GetWidth() const {return this-&gt;width;} std::uint32_t GetHeight() const {return this-&gt;height;} bool HasAlphaChannel() {return BitsPerPixel == 32;} }; BMP::BMP(const char* FilePath) { std::fstream hFile(FilePath, std::ios::in | std::ios::binary); if (!hFile.is_open()) throw std::invalid_argument("Error: File Not Found."); hFile.seekg(0, std::ios::end); std::size_t Length = hFile.tellg(); hFile.seekg(0, std::ios::beg); std::vector&lt;std::uint8_t&gt; FileInfo(Length); hFile.read(reinterpret_cast&lt;char*&gt;(FileInfo.data()), 54); if(FileInfo[0] != 'B' &amp;&amp; FileInfo[1] != 'M') { hFile.close(); throw std::invalid_argument("Error: Invalid File Format. Bitmap Required."); } if (FileInfo[28] != 24 &amp;&amp; FileInfo[28] != 32) { hFile.close(); throw std::invalid_argument("Error: Invalid File Format. 24 or 32 bit Image Required."); } BitsPerPixel = FileInfo[28]; width = FileInfo[18] + (FileInfo[19] &lt;&lt; 8); height = FileInfo[22] + (FileInfo[23] &lt;&lt; 8); std::uint32_t PixelsOffset = FileInfo[10] + (FileInfo[11] &lt;&lt; 8); std::uint32_t size = ((width * BitsPerPixel + 31) / 32) * 4 * height; Pixels.resize(size); hFile.seekg (PixelsOffset, std::ios::beg); hFile.read(reinterpret_cast&lt;char*&gt;(Pixels.data()), size); hFile.close(); } int main() { BMP info = BMP("C:/Users/....../Desktop/SomeBmp.bmp"); GLuint texture = 0; glGenTextures(1, &amp;texture); glBindTexture(GL_TEXTURE_2D, texture); glTexImage2D(GL_TEXTURE_2D, 0, info.HasAlphaChannel() ? GL_RGBA : GL_RGB, info.GetWidth(), info.GetWidth(), 0, info.HasAlphaChannel() ? GL_BGRA : GL_BGR, GL_UNSIGNED_BYTE, info.GetPixels().data()); } </code></pre> <p>TGA's:</p> <pre><code>#include &lt;vector&gt; #include &lt;fstream&gt; #ifdef __APPLE__ #include &lt;OpenGL/gl.h&gt; #include &lt;OpenGL/glu.h&gt; #endif #ifdef _WIN32 #include &lt;GL/gl.h&gt; #include &lt;GL/glu.h&gt; #endif typedef union PixelInfo { std::uint32_t Colour; struct { std::uint8_t R, G, B, A; }; } *PPixelInfo; class Tga { private: std::vector&lt;std::uint8_t&gt; Pixels; bool ImageCompressed; std::uint32_t width, height, size, BitsPerPixel; public: Tga(const char* FilePath); std::vector&lt;std::uint8_t&gt; GetPixels() {return this-&gt;Pixels;} std::uint32_t GetWidth() const {return this-&gt;width;} std::uint32_t GetHeight() const {return this-&gt;height;} bool HasAlphaChannel() {return BitsPerPixel == 32;} }; Tga::Tga(const char* FilePath) { std::fstream hFile(FilePath, std::ios::in | std::ios::binary); if (!hFile.is_open()){throw std::invalid_argument("File Not Found.");} std::uint8_t Header[18] = {0}; std::vector&lt;std::uint8_t&gt; ImageData; static std::uint8_t DeCompressed[12] = {0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; static std::uint8_t IsCompressed[12] = {0x0, 0x0, 0xA, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; hFile.read(reinterpret_cast&lt;char*&gt;(&amp;Header), sizeof(Header)); if (!std::memcmp(DeCompressed, &amp;Header, sizeof(DeCompressed))) { BitsPerPixel = Header[16]; width = Header[13] * 256 + Header[12]; height = Header[15] * 256 + Header[14]; size = ((width * BitsPerPixel + 31) / 32) * 4 * height; if ((BitsPerPixel != 24) &amp;&amp; (BitsPerPixel != 32)) { hFile.close(); throw std::invalid_argument("Invalid File Format. Required: 24 or 32 Bit Image."); } ImageData.resize(size); ImageCompressed = false; hFile.read(reinterpret_cast&lt;char*&gt;(ImageData.data()), size); } else if (!std::memcmp(IsCompressed, &amp;Header, sizeof(IsCompressed))) { BitsPerPixel = Header[16]; width = Header[13] * 256 + Header[12]; height = Header[15] * 256 + Header[14]; size = ((width * BitsPerPixel + 31) / 32) * 4 * height; if ((BitsPerPixel != 24) &amp;&amp; (BitsPerPixel != 32)) { hFile.close(); throw std::invalid_argument("Invalid File Format. Required: 24 or 32 Bit Image."); } PixelInfo Pixel = {0}; int CurrentByte = 0; std::size_t CurrentPixel = 0; ImageCompressed = true; std::uint8_t ChunkHeader = {0}; int BytesPerPixel = (BitsPerPixel / 8); ImageData.resize(width * height * sizeof(PixelInfo)); do { hFile.read(reinterpret_cast&lt;char*&gt;(&amp;ChunkHeader), sizeof(ChunkHeader)); if(ChunkHeader &lt; 128) { ++ChunkHeader; for(int I = 0; I &lt; ChunkHeader; ++I, ++CurrentPixel) { hFile.read(reinterpret_cast&lt;char*&gt;(&amp;Pixel), BytesPerPixel); ImageData[CurrentByte++] = Pixel.B; ImageData[CurrentByte++] = Pixel.G; ImageData[CurrentByte++] = Pixel.R; if (BitsPerPixel &gt; 24) ImageData[CurrentByte++] = Pixel.A; } } else { ChunkHeader -= 127; hFile.read(reinterpret_cast&lt;char*&gt;(&amp;Pixel), BytesPerPixel); for(int I = 0; I &lt; ChunkHeader; ++I, ++CurrentPixel) { ImageData[CurrentByte++] = Pixel.B; ImageData[CurrentByte++] = Pixel.G; ImageData[CurrentByte++] = Pixel.R; if (BitsPerPixel &gt; 24) ImageData[CurrentByte++] = Pixel.A; } } } while(CurrentPixel &lt; (width * height)); } else { hFile.close(); throw std::invalid_argument("Invalid File Format. Required: 24 or 32 Bit TGA File."); } hFile.close(); this-&gt;Pixels = ImageData; } int main() { Tga info = Tga("C:/Users/...../Desktop/SomeTGA.tga"); GLuint texture = 0; glGenTextures(1, &amp;texture); glBindTexture(GL_TEXTURE_2D, texture); glTexImage2D(GL_TEXTURE_2D, 0, info.HasAlphaChannel() ? GL_RGBA : GL_RGB, info.GetWidth(), info.GetWidth(), 0, info.HasAlphaChannel() ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE, info.GetPixels().data()); } </code></pre>
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