glTexImage2D 访问违规

我已经发布了这个问题，但它没有得到任何有用的答案。我正在尝试在OpenGL中创建两个纹理。最初我是这样做的：

unsigned int texture1, texture2;
glGenTextures(1, &texture1);
glBindTexture(GL_TEXTURE_2D, texture1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
int width, height, nrChannels;
stbi_set_flip_vertically_on_load(true);
unsigned char *data = stbi_load("C:\Users\A\Desktop\wall.jpg", &width, &height, &nrChannels, 0);
if (data)
{
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
}
else
{
std::cout << "Failed to load texture" << std::endl;
}
stbi_image_free(data);
glGenTextures(1, &texture2);
glBindTexture(GL_TEXTURE_2D, texture2);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
data = stbi_load("C:\Users\A\Desktop\awesomeface.png", &width, &height, &nrChannels, 0);
if (data)
{
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
}
else
{
std::cout << "Failed to load texture" << std::endl;
}
stbi_image_free(data);

这段代码运行良好，运行没有明显的问题。显然，构建这些纹理两次都是完全相同的过程，所以我想我会使用 for 循环：

unsigned int textures[2];
int width, height, nrChannels;
unsigned char *data = stbi_load("C:\Users\A\Desktop\wall.jpg", &width, &height, &nrChannels, 0);
glGenTextures(2, textures);
for (int i = 0; i < 2; i++)
{
if (i == 1)
{
stbi_image_free(data);
data = stbi_load("C:\Users\A\Desktop\awesomeface.png", &width, &height, &nrChannels, 0);
}
glBindTexture(GL_TEXTURE_2D, (i == 0) ? textures[0] : textures[1]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
if (data)
{
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, (i = 0) ? GL_RGB : GL_RGBA, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
}
else
{
std::cout << "Failed to load texture!" << std::endl;
}
}

但是这段代码完全中断，并出现错误：LearnOpenGL.exe中0x03C78893处未处理的异常(ig9icd32.dll(：0xC0000005：访问违规读取位置0x0A47B000。

我相信你可以指出很多你不喜欢代码的地方，或者以后可能成为问题的东西，但看到我真的只是想要这个特定问题的答案，请不要发布答案，除非你有一些东西可以真正使这段代码编译。