我和其他几个人正在尝试构建一个简单的横向卷轴类型的游戏。但是,我无法让他们帮助回答我的问题,所以我把它给你,下面的代码在标记的地方给我留下了一个 SIGSEGV 错误......如果有人能告诉我为什么,我真的很感激. 如果您需要更多信息,我将密切关注。
主文件
Vector2 dudeDim(60,60);
Vector2 dudePos(300, 300);
Entity *test = new Entity("img/images.jpg", dudeDim, dudePos, false);
导致:
实体.cpp
Entity::Entity(std::string filename, Vector2 size, Vector2 position, bool passable):
mTexture(filename)
{
mTexture.load(false);
mDimension2D = size;
mPosition2D = position;
mPassable = passable;
}
导致:
纹理.cpp
void Texture::load(bool generateMipmaps)
{
FREE_IMAGE_FORMAT imgFormat = FIF_UNKNOWN;
FIBITMAP *dib(0);
imgFormat = FreeImage_GetFileType(mFilename.c_str(), 0);
//std::cout << "File format: " << imgFormat << std::endl;
if (FreeImage_FIFSupportsReading(imgFormat)) // Check if the plugin has reading capabilities and load the file
dib = FreeImage_Load(imgFormat, mFilename.c_str());
if (!dib)
std::cout << "Error loading texture files!" << std::endl;
BYTE* bDataPointer = FreeImage_GetBits(dib); // Retrieve the image data
mWidth = FreeImage_GetWidth(dib); // Get the image width and height
mHeight = FreeImage_GetHeight(dib);
mBitsPerPixel = FreeImage_GetBPP(dib);
if (!bDataPointer || !mWidth || !mHeight)
std::cout << "Error loading texture files!" << std::endl;
// Generate and bind ID for this texture
vvvvvvvvvv !!!这里有错误!!!vvvvvvvvvvv
glGenTextures(1, &mId);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
glBindTexture(GL_TEXTURE_2D, mId);
int format = mBitsPerPixel == 24 ? GL_BGR_EXT : mBitsPerPixel == 8 ? GL_LUMINANCE : 0;
int iInternalFormat = mBitsPerPixel == 24 ? GL_RGB : GL_DEPTH_COMPONENT;
if(generateMipmaps)
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, mWidth, mHeight, 0, format, GL_UNSIGNED_BYTE, bDataPointer);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); // Linear Filtering
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); // Linear Filtering
//std::cout << "texture generated " << mId << std::endl;
FreeImage_Unload(dib);
}
在阅读了彼得的建议后,我将 main.cpp 文件更改为:
#include <iostream>
#include <vector>
#include "Game.h"
using namespace std;
int main(int argc, char** argv)
{
Game theGame;
/* Initialize game control objects and resources */
if (theGame.onInit() != false)
{
return theGame.onExecute();
}
else
{
return -1;
}
}
似乎 SIGSEGV 错误消失了,我现在剩下的东西没有初始化。所以谢谢你,彼得你是对的,现在我要解决这个问题了。
好的,所以这显然是一小部分代码,但为了节省时间和一点理智:所有代码都可以在: