(帮助)加载BMP文件错误

我在RAM内存中加载BMP文件时遇到了一些问题。

显然，图像加载得很好，但当它被OpenGL程序显示时，它看起来很糟糕。程序不会抛出任何错误(在c++中)

代码:

TEXTURE::TEXTURE(const char *path) {
    unsigned char header[54];
    unsigned int dataPos;
    unsigned int width, height, size;
    unsigned char *data;
    FILE *filePointer = fopen(path, "rb");
    if(filePointer == NULL)
        printf_s("Error openning image file at '%s'!", path);
    if(!fread(header, 1, 54, filePointer))
        printf_s("Error, file at '%s' isn't a real BMP file.", path);
    if(header[0] != 'B' || header[1] != 'M')
        printf_s("Error, file at '%s' isn't a real BMP file.", path);
    dataPos = *(int *)&header[0x0A];
    size    = *(int *)&header[0x22];
    width   = *(int *)&header[0x12];
    height  = *(int *)&header[0x16];
    if(!size)
        size = width * height * 3;
    if(!dataPos)
        dataPos = 54;
    data = new unsigned char[size];
    fread(data, 1, size, filePointer);
    fclose(filePointer);
    glGenTextures(1, &texID);
    glBindTexture(GL_TEXTURE_2D, texID);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
    glBindTexture(GL_TEXTURE_2D, 0);
}

结果(图像上的信息不重要):

(我不能张贴图片…)https://i.stack.imgur.com/Ny2YD.jpg

原图片:http://k33.kn3.net/C/B/A/4/0/C/DB2.bmp

顶点着色器来源:

#version 330 core
layout(location = 0) in vec4 position;
layout(location = 1) in vec2 texCoords;
out DATA {
    vec2 texCoords;
} vs_out;
void main() {
    gl_Position = position;
    vs_out.texCoords = texCoords;
}

Fragment shader source:

#version 330 core
layout(location = 0) out vec4 color;
in DATA {
    vec2 texCoords;
} fs_in;
uniform sampler2D sampler;
void main() {
    color = texture(sampler, fs_in.texCoords);
}