在Ubuntu 14.04中使用SOIL
Using SOIL in Ubuntu 14.04
我在Ubuntu 14.04中使用SOIL时遇到了一些实际问题。我已经设法让SOIL在windows环境中工作，并将代码从windows移植到ubuntu。
我确信我已经设法让SOIL安装在我的Ubuntu机器上了。我有libSOIL.a和libSOIL.so文件以及SOIL.h
然而，当我开始使用我的代码时，一切都会出错。这是我逐步构建的代码，所以在继续并添加其他功能之前，我已经测试了一些代码。
我正在开发的代码非常简单（实际上，这只是一个检查，试图获得在许多平台上都能工作的东西），它只是渲染一个围绕其中心旋转的3D立方体，并有一个纹理图。我希望使用SOIL来加载纹理。之前我已经检查过这一切，使用我自己的例程来加载纹理，这很好。一旦我将加载纹理的线更改为SOIL函数，它现在就会失败。
我使用的代码是
SOIL_load_OGL_texture("/home/ubuntu/Documents/OpenGL3/OpenGL_Basic_Engine/c2_4_DrawCubeTextureAdvanced/Textures/Crate.bmp", SOIL_LOAD_AUTO, SOIL_CREATE_NEW_ID, SOIL_FLAG_MIPMAPS);
这是自该代码的上一个版本以来所做的唯一更改。
我通过简单的"fopen"answers"if｛｝else｛｝"检查来确保该文件是可打开的，我甚至安装了Code:：Blocks，这样我就有了一个调试器，可以逐行执行。当我的调试器到达SOIL函数，我试图进入该函数时，程序返回一个分段错误并退出，甚至没有将我发送到SOIL函数。
如果有人有任何想法，我将不胜感激，因为我已经和这个问题斗争了好几个星期了！
干杯
*********编辑***********
让我们看看我现在是否可以在这里获得所有所需的信息（我不得不将机器移到我的ubuntu上以获取源代码）
首先，我的代码是C++（但我认为SOIL是用C写的？-因此有两个标签）
失败的源文件如下：
#include "CubeTextureAdvanced.h"
#ifdef _WIN32
#include <BasicEngineEngine.h>
#include "soilSOIL.h"
#elif __linux__
#include "../BasicEngine/Engine.h"
#include "/usr/local/include/SOIL.h"
#include <pthread.h>
#endif
using namespace BasicEngine;
#ifdef __linux__
void junk() { //dummy procedure to allow pthread to be linked
int i;
i = pthread_getconcurrency();
}
#endif
int main(int argc, char **argv)
{
std::cout << "create new engine" << std::endl;
Engine* engine = new Engine();
engine->Init();
std::cout << "get shader manager and create programme" << std::endl;
engine->GetShader_Manager()->CreateProgram("cubeShader", "/home/ubuntu/Documents/OpenGL3/OpenGL_Basic_Engine/c2_4_DrawCubeTextureAdvanced/Shaders/Cube_Vertex_Shader.glsl",
"/home/ubuntu/Documents/OpenGL3/OpenGL_Basic_Engine/c2_4_DrawCubeTextureAdvanced/Shaders/Cube_Fragment_Shader.glsl");
std::cout << "get shader manager and get shader" << std::endl;
CubeTextureAdvanced* cube = new CubeTextureAdvanced();
int program = engine->GetShader_Manager()->GetShader("cubeShader");
if (program != 0)
{
cube->SetProgram(program);
cube->Create();
}
else
{
std::cout << "invalid program..."; std::cin.get();
}
//this is the routine that works to load textures that i wish to replace with SOIL
//unsigned int texture = engine->GetTexture_Loader()->LoadTexture("Textures\Crate.bmp", 256, 256);
//cube->SetTexture("Create", texture);
std::cout << "use SOIL to load an OpenGL Texture" << std::endl;
FILE * pFile;
pFile = fopen("/home/ubuntu/Documents/OpenGL3/OpenGL_Basic_Engine/c2_4_DrawCubeTextureAdvanced/Textures/Crate.bmp", "r");
if(pFile != NULL)
{
std::cout << "FILE OPEN" << std::endl;
fclose(pFile);
}
GLuint Texturetmp;
Texturetmp = SOIL_load_OGL_texture("/home/ubuntu/Documents/OpenGL3/OpenGL_Basic_Engine/c2_4_DrawCubeTextureAdvanced/Textures/Crate.bmp", SOIL_LOAD_AUTO, SOIL_CREATE_NEW_ID, SOIL_FLAG_MIPMAPS);
std::cout << Texturetmp << std::endl;
std::cout << "loaded texture" << std::endl;
cube->SetTexture("Create", Texturetmp);
std::cout << "get the models manager and set the model" << std::endl;
engine->GetModels_Manager()->SetModel("cube", cube);
std::cout << "run the programme" << std::endl;
engine->Run();
delete engine;
return (0);
}
我在终端中运行的编译命令是：
g++ -Wall -Wextra ./../BasicEngine/Engine.cpp ./../BasicEngine/Core/Init/Init_GLUT.cpp ./../BasicEngine/Core/Init/Init_GLEW.cpp ./../BasicEngine/Managers/Models_Manager.cpp ./../BasicEngine/Managers/Scene_Manager.cpp ./../BasicEngine/Managers/Shader_Manager.cpp ./CubeTextureAdvanced.cpp ./../BasicEngine/Rendering/Models/Model.cpp ./../BasicEngine/Rendering/Texture/TextureLoader.cpp main.cpp -lglut -lGL -lGLU -lGLEW -lpthread -lX11 -lSOIL -std=gnu++11 -o main
返回的警告是一些type qualifiers ignored或unused parameters。但是，没有任何引用SOIL函数调用的内容，也没有任何暗示在此之前的问题的内容可以阻止SOIL工作（据我所知）。
其他可能有帮助的源文件是init_GLUT和init_GLEW文件，如下所示：
init_GLUT:
#include "../Init/Init_GLUT.h"
using namespace BasicEngine;
using namespace Core::Init;
Core::IListener* Init_GLUT::listener = NULL;
Core::WindowInfo Init_GLUT::windowInformation;
#ifdef __linux__
Display *dpy;
Window root;
GLint att[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None };
XVisualInfo *vi;
Colormap cmap;
XSetWindowAttributes swa;
Window win;
GLXContext glc;
XWindowAttributes gwa;
XEvent xev;
void Init_GLUT::linuxinit()
{
std::cout << "Linux detected" << std::endl;
dpy = XOpenDisplay(NULL);
if (dpy == NULL)
{
std::cout << "ntcannont connect to X servernn" << std::endl;
exit(0);
}
root = DefaultRootWindow(dpy);
vi = glXChooseVisual(dpy, 0, att);
if (vi == NULL)
{
std::cout << "ntno appropriate visual foundnn" << std::endl;
exit(0);
}
else
{
printf("ntvisual %p selectedn", (void*)vi->visualid); //%p creates a hexadecimal output like in glxinfo
}
cmap = XCreateColormap(dpy, root, vi->visual, AllocNone);
swa.colormap = cmap;
swa.event_mask = ExposureMask | KeyPressMask;
std::cout << "end of Linux compiler directives" << std::endl;
}
#endif
void Init_GLUT::init(const Core::WindowInfo& windowInfo,
const Core::ContextInfo& contextInfo,
const Core::FramebufferInfo& framebufferInfo)
{
windowInformation = windowInfo;
//i need some fake things here
int fakeargc = 1;
char* fakeargv[] = { "fake", NULL };
glutInit(&fakeargc, fakeargv);
if (contextInfo.core)
{
glutInitContextVersion(contextInfo.major_version,
contextInfo.minor_version);
glutInitContextProfile(GLUT_CORE_PROFILE);
}
else
{
//doesn't matter in compatibility mode
glutInitContextProfile(GLUT_COMPATIBILITY_PROFILE);
}
//old functions from main.cpp now using info from the structures
glutInitDisplayMode(framebufferInfo.flags);
glutInitWindowPosition(windowInfo.position_x, windowInfo.position_y);
glutInitWindowSize(windowInfo.width, windowInfo.height);
glutCreateWindow(windowInfo.name.c_str());
std::cout << "GLUT:initialised" << std::endl;
#ifdef _WIN32
//Lets add some debug capability
glEnable(GL_DEBUG_OUTPUT);
#endif
Core::Init::Init_GLEW::Init();
#ifdef _WIN32
glDebugMessageCallback(DebugOutput::myCallback, NULL);
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, TRUE);
#endif
//these call backs are used for rendering
glutIdleFunc(idleCallback);
glutCloseFunc(closeCallback);
glutDisplayFunc(displayCallback);
glutReshapeFunc(reshapeCallback);
//init GLEW (can be called in main.cpp)
//clean up
glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_GLUTMAINLOOP_RETURNS);
//our method to display some info. Needs contextInfo and windowinfo
printOpenGLInfo(windowInfo, contextInfo);
}
//starts the rendering loop
void Init_GLUT::run()
{
std::cout << "GLUT:t Start Running" << std::endl;
glutMainLoop();
}
void Init_GLUT::close()
{
std::cout << "GLUT:t Finished" << std::endl;
glutLeaveMainLoop;
}
void Init_GLUT::idleCallback(void)
{
//do nothing, just redisplay
glutPostRedisplay();
}
void Init_GLUT::displayCallback()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(0.0, 0.0, 0.0, 1);
glutSwapBuffers;
if (listener)
{
listener->notifyBeginFrame();
listener->notifyDisplayFrame();
glutSwapBuffers();
listener->notifyEndFrame();
}
}
void Init_GLUT::reshapeCallback(int width, int height)
{
if (windowInformation.isReshapable == true)
{
if (listener)
{
listener->notifyReshape(width, height, windowInformation.width, windowInformation.height);
}
windowInformation.width = width;
windowInformation.height = height;
}
}
void Init_GLUT::closeCallback()
{
close();
}
void Init_GLUT::enterFullscreen()
{
glutFullScreen();
}
void Init_GLUT::exitFullscreen()
{
glutLeaveFullScreen();
}
void Init_GLUT::setListener(Core::IListener* iListener)
{
listener = iListener;
}
void Init_GLUT::printOpenGLInfo(const Core::WindowInfo& windowInfo,
const Core::ContextInfo& contextInfo)
{
const unsigned char* renderer = glGetString(GL_RENDERER);
const unsigned char* vendor = glGetString(GL_VENDOR);
const unsigned char* version = glGetString(GL_VERSION);
std::cout << "*******************************************************************************" << std::endl;
std::cout << "GLUT:tVendor : " << vendor << std::endl;
std::cout << "GLUT:tRenderer : " << renderer << std::endl;
std::cout << "GLUT:tOpenGl version: " << version << std::endl;
std::cout << "GLUT:tInitial window is '" << windowInfo.name << "', with dimensions (" << windowInfo.width
<< "X" << windowInfo.height;
std::cout << ") starts at (" << windowInfo.position_x << "X" << windowInfo.position_y;
std::cout << ") and " << ((windowInfo.isReshapable) ? "is" : "is not ") << " redimensionable" << std::endl;
std::cout << "GLUT:tInitial Framebuffer contains double buffers for" << std::endl;
std::cout << "GLUT:t OpenGL context is " << contextInfo.major_version << "." << contextInfo.minor_version;
std::cout << " and profile is " << ((contextInfo.core) ? "core" : "compatibility") << std::endl;
std::cout << "*****************************************************************" << std::endl;
}
init_GLEW:
#include "../Init/Init_GLEW.h"
using namespace BasicEngine;
using namespace Core;
using namespace Core::Init;
void Init_GLEW::Init(){
glewExperimental = true;
if (glewInit() == GLEW_OK)
{
std::cout << "GLEW: Initialised" << std::endl;
}
if (glewIsSupported("GL_VERSION_4_5"))
{
std::cout << "GLEW Version is 4.5 :) n";
}
else
{
std::cout << "GLEW 4.5 not supported :( n";
}
}
最后，我的SOIL.h文件的内容如下：
/**
@mainpage SOIL
Jonathan Dummer
2007-07-26-10.36
Simple OpenGL Image Library
A tiny c library for uploading images as
textures into OpenGL. Also saving and
loading of images is supported.
I'm using Sean's Tool Box image loader as a base:
http://www.nothings.org/
I'm upgrading it to load TGA and DDS files, and a direct
path for loading DDS files straight into OpenGL textures,
when applicable.
Image Formats:
- BMP load & save
- TGA load & save
- DDS load & save
- PNG load
- JPG load
OpenGL Texture Features:
- resample to power-of-two sizes
- MIPmap generation
- compressed texture S3TC formats (if supported)
- can pre-multiply alpha for you, for better compositing
- can flip image about the y-axis (except pre-compressed DDS files)
Thanks to:
* Sean Barret - for the awesome stb_image
* Dan Venkitachalam - for finding some non-compliant DDS files, and patching some explicit casts
* everybody at gamedev.net
**/
#ifndef HEADER_SIMPLE_OPENGL_IMAGE_LIBRARY
#define HEADER_SIMPLE_OPENGL_IMAGE_LIBRARY
#ifdef __cplusplus
extern "C" {
#endif
/**
The format of images that may be loaded (force_channels).
SOIL_LOAD_AUTO leaves the image in whatever format it was found.
SOIL_LOAD_L forces the image to load as Luminous (greyscale)
SOIL_LOAD_LA forces the image to load as Luminous with Alpha
SOIL_LOAD_RGB forces the image to load as Red Green Blue
SOIL_LOAD_RGBA forces the image to load as Red Green Blue Alpha
**/
enum
{
SOIL_LOAD_AUTO = 0,
SOIL_LOAD_L = 1,
SOIL_LOAD_LA = 2,
SOIL_LOAD_RGB = 3,
SOIL_LOAD_RGBA = 4
};
/**
Passed in as reuse_texture_ID, will cause SOIL to
register a new texture ID using glGenTextures().
If the value passed into reuse_texture_ID > 0 then
SOIL will just re-use that texture ID (great for
reloading image assets in-game!)
**/
enum
{
SOIL_CREATE_NEW_ID = 0
};
/**
flags you can pass into SOIL_load_OGL_texture()
and SOIL_create_OGL_texture().
(note that if SOIL_FLAG_DDS_LOAD_DIRECT is used
the rest of the flags with the exception of
SOIL_FLAG_TEXTURE_REPEATS will be ignored while
loading already-compressed DDS files.)
SOIL_FLAG_POWER_OF_TWO: force the image to be POT
SOIL_FLAG_MIPMAPS: generate mipmaps for the texture
SOIL_FLAG_TEXTURE_REPEATS: otherwise will clamp
SOIL_FLAG_MULTIPLY_ALPHA: for using (GL_ONE,GL_ONE_MINUS_SRC_ALPHA) blending
SOIL_FLAG_INVERT_Y: flip the image vertically
SOIL_FLAG_COMPRESS_TO_DXT: if the card can display them, will convert RGB to DXT1, RGBA to DXT5
SOIL_FLAG_DDS_LOAD_DIRECT: will load DDS files directly without _ANY_ additional processing
SOIL_FLAG_NTSC_SAFE_RGB: clamps RGB components to the range [16,235]
SOIL_FLAG_CoCg_Y: Google YCoCg; RGB=>CoYCg, RGBA=>CoCgAY
SOIL_FLAG_TEXTURE_RECTANGE: uses ARB_texture_rectangle ; pixel indexed & no repeat or MIPmaps or cubemaps
**/
enum
{
SOIL_FLAG_POWER_OF_TWO = 1,
SOIL_FLAG_MIPMAPS = 2,
SOIL_FLAG_TEXTURE_REPEATS = 4,
SOIL_FLAG_MULTIPLY_ALPHA = 8,
SOIL_FLAG_INVERT_Y = 16,
SOIL_FLAG_COMPRESS_TO_DXT = 32,
SOIL_FLAG_DDS_LOAD_DIRECT = 64,
SOIL_FLAG_NTSC_SAFE_RGB = 128,
SOIL_FLAG_CoCg_Y = 256,
SOIL_FLAG_TEXTURE_RECTANGLE = 512
};
/**
The types of images that may be saved.
(TGA supports uncompressed RGB / RGBA)
(BMP supports uncompressed RGB)
(DDS supports DXT1 and DXT5)
**/
enum
{
SOIL_SAVE_TYPE_TGA = 0,
SOIL_SAVE_TYPE_BMP = 1,
SOIL_SAVE_TYPE_DDS = 2
};
/**
Defines the order of faces in a DDS cubemap.
I recommend that you use the same order in single
image cubemap files, so they will be interchangeable
with DDS cubemaps when using SOIL.
**/
#define SOIL_DDS_CUBEMAP_FACE_ORDER "EWUDNS"
/**
The types of internal fake HDR representations
SOIL_HDR_RGBE: RGB * pow( 2.0, A - 128.0 )
SOIL_HDR_RGBdivA: RGB / A
SOIL_HDR_RGBdivA2: RGB / (A*A)
**/
enum
{
SOIL_HDR_RGBE = 0,
SOIL_HDR_RGBdivA = 1,
SOIL_HDR_RGBdivA2 = 2
};
/**
Loads an image from disk into an OpenGL texture.
param filename the name of the file to upload as a texture
param force_channels 0-image format, 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_texture
(
const char *filename,
int force_channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Loads 6 images from disk into an OpenGL cubemap texture.
param x_pos_file the name of the file to upload as the +x cube face
param x_neg_file the name of the file to upload as the -x cube face
param y_pos_file the name of the file to upload as the +y cube face
param y_neg_file the name of the file to upload as the -y cube face
param z_pos_file the name of the file to upload as the +z cube face
param z_neg_file the name of the file to upload as the -z cube face
param force_channels 0-image format, 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_cubemap
(
const char *x_pos_file,
const char *x_neg_file,
const char *y_pos_file,
const char *y_neg_file,
const char *z_pos_file,
const char *z_neg_file,
int force_channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Loads 1 image from disk and splits it into an OpenGL cubemap texture.
param filename the name of the file to upload as a texture
param face_order the order of the faces in the file, any combination of NSWEUD, for North, South, Up, etc.
param force_channels 0-image format, 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_single_cubemap
(
const char *filename,
const char face_order[6],
int force_channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Loads an HDR image from disk into an OpenGL texture.
param filename the name of the file to upload as a texture
param fake_HDR_format SOIL_HDR_RGBE, SOIL_HDR_RGBdivA, SOIL_HDR_RGBdivA2
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_HDR_texture
(
const char *filename,
int fake_HDR_format,
int rescale_to_max,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Loads an image from RAM into an OpenGL texture.
param buffer the image data in RAM just as if it were still in a file
param buffer_length the size of the buffer in bytes
param force_channels 0-image format, 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_texture_from_memory
(
const unsigned char *const buffer,
int buffer_length,
int force_channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Loads 6 images from memory into an OpenGL cubemap texture.
param x_pos_buffer the image data in RAM to upload as the +x cube face
param x_pos_buffer_length the size of the above buffer
param x_neg_buffer the image data in RAM to upload as the +x cube face
param x_neg_buffer_length the size of the above buffer
param y_pos_buffer the image data in RAM to upload as the +x cube face
param y_pos_buffer_length the size of the above buffer
param y_neg_buffer the image data in RAM to upload as the +x cube face
param y_neg_buffer_length the size of the above buffer
param z_pos_buffer the image data in RAM to upload as the +x cube face
param z_pos_buffer_length the size of the above buffer
param z_neg_buffer the image data in RAM to upload as the +x cube face
param z_neg_buffer_length the size of the above buffer
param force_channels 0-image format, 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_cubemap_from_memory
(
const unsigned char *const x_pos_buffer,
int x_pos_buffer_length,
const unsigned char *const x_neg_buffer,
int x_neg_buffer_length,
const unsigned char *const y_pos_buffer,
int y_pos_buffer_length,
const unsigned char *const y_neg_buffer,
int y_neg_buffer_length,
const unsigned char *const z_pos_buffer,
int z_pos_buffer_length,
const unsigned char *const z_neg_buffer,
int z_neg_buffer_length,
int force_channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Loads 1 image from RAM and splits it into an OpenGL cubemap texture.
param buffer the image data in RAM just as if it were still in a file
param buffer_length the size of the buffer in bytes
param face_order the order of the faces in the file, any combination of NSWEUD, for North, South, Up, etc.
param force_channels 0-image format, 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_load_OGL_single_cubemap_from_memory
(
const unsigned char *const buffer,
int buffer_length,
const char face_order[6],
int force_channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Creates a 2D OpenGL texture from raw image data. Note that the raw data is
_NOT_ freed after the upload (so the user can load various versions).
param data the raw data to be uploaded as an OpenGL texture
param width the width of the image in pixels
param height the height of the image in pixels
param channels the number of channels: 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_create_OGL_texture
(
const unsigned char *const data,
int width, int height, int channels,
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Creates an OpenGL cubemap texture by splitting up 1 image into 6 parts.
param data the raw data to be uploaded as an OpenGL texture
param width the width of the image in pixels
param height the height of the image in pixels
param channels the number of channels: 1-luminous, 2-luminous/alpha, 3-RGB, 4-RGBA
param face_order the order of the faces in the file, and combination of NSWEUD, for North, South, Up, etc.
param reuse_texture_ID 0-generate a new texture ID, otherwise reuse the texture ID (overwriting the old texture)
param flags can be any of SOIL_FLAG_POWER_OF_TWO | SOIL_FLAG_MIPMAPS | SOIL_FLAG_TEXTURE_REPEATS | SOIL_FLAG_MULTIPLY_ALPHA | SOIL_FLAG_INVERT_Y | SOIL_FLAG_COMPRESS_TO_DXT | SOIL_FLAG_DDS_LOAD_DIRECT
return 0-failed, otherwise returns the OpenGL texture handle
**/
unsigned int
SOIL_create_OGL_single_cubemap
(
const unsigned char *const data,
int width, int height, int channels,
const char face_order[6],
unsigned int reuse_texture_ID,
unsigned int flags
);
/**
Captures the OpenGL window (RGB) and saves it to disk
return 0 if it failed, otherwise returns 1
**/
int
SOIL_save_screenshot
(
const char *filename,
int image_type,
int x, int y,
int width, int height
);
/**
Loads an image from disk into an array of unsigned chars.
Note that *channels return the original channel count of the
image. If force_channels was other than SOIL_LOAD_AUTO,
the resulting image has force_channels, but *channels may be
different (if the original image had a different channel
count).
return 0 if failed, otherwise returns 1
**/
unsigned char*
SOIL_load_image
(
const char *filename,
int *width, int *height, int *channels,
int force_channels
);
/**
Loads an image from memory into an array of unsigned chars.
Note that *channels return the original channel count of the
image. If force_channels was other than SOIL_LOAD_AUTO,
the resulting image has force_channels, but *channels may be
different (if the original image had a different channel
count).
return 0 if failed, otherwise returns 1
**/
unsigned char*
SOIL_load_image_from_memory
(
const unsigned char *const buffer,
int buffer_length,
int *width, int *height, int *channels,
int force_channels
);
/**
Saves an image from an array of unsigned chars (RGBA) to disk
return 0 if failed, otherwise returns 1
**/
int
SOIL_save_image
(
const char *filename,
int image_type,
int width, int height, int channels,
const unsigned char *const data
);
/**
Frees the image data (note, this is just C's "free()"...this function is
present mostly so C++ programmers don't forget to use "free()" and call
"delete []" instead [8^)
**/
void
SOIL_free_image_data
(
unsigned char *img_data
);
/**
This function resturn a pointer to a string describing the last thing
that happened inside SOIL. It can be used to determine why an image
failed to load.
**/
const char*
SOIL_last_result
(
void
);
#ifdef __cplusplus
}
#endif
#endif /* HEADER_SIMPLE_OPENGL_IMAGE_LIBRARY */
我在/usr/lib 中存储了libSOIL.a
我也尝试过将libSOIL.a存储在usr/local/lib中，但这似乎没有帮助。
SOIL.h在usr/local/include 中
希望这是足够的信息，有人发现我（新手）的错误。
对大量代码表示歉意。
同样值得称赞的是www.in2gpu.com，我一直在关注它的教程，让我走到了这一步。
干杯
我怀疑库等没有正确链接。
建议使用makefile，类似于：
CC := /usr/bin/g++
RM := /usr/bin/rm
SRCS := ./../BasicEngine/Engine.cpp
./../BasicEngine/Core/Init/Init_GLUT.cpp
./../BasicEngine/Core/Init/Init_GLEW.cpp
./../BasicEngine/Managers/Models_Manager.cpp
./../BasicEngine/Managers/Scene_Manager.cpp
./../BasicEngine/Managers/Shader_Manager.cpp
./CubeTextureAdvanced.cpp
./../BasicEngine/Rendering/Models/Model.cpp
./../BasicEngine/Rendering/Texture/TextureLoader.cpp
TEMP := $(basename $(SRCS))
OBJS := $(addsuffix .o, $(TEMP))
NAME := main
CFLAGS := -Wall -Wextra -Wconversion -std=gnu++11 -c
LFLAGS := -lglut -lGL -lGLU -lGLEW -lpthread -lX11 -lSOIL
.PHONY: all
all : $(NAME)
%.o:%.cpp
<tab>$(CC) $(CFLAGS) -o $@ $< -I.
$(NAME): $(OBJS)
<tab>$(CC) -o $@ $^ $(LFLAGS)
PHONY: clean
clean:
<tab> $(RM) -f $(OBJS)
<tab> $(RM) -f $(NAME)
注意：用标签字符替换<tab>
然后使用类似于的东西进行编译/链接
make -f makefile
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