Re: [Dev-C++] Strange compilation unit errors
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Re: [Dev-C++] Strange compilation unit errors
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From: Scott S. <ssi...@sp...> - 2004-11-02 22:29:01
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Thank you for all the help. I added the return type, changed height to
height_, and in a few places, changed a -> to a . I then had to do one
cast, and now everything works fine so far. Thank you for your help.
Thank you for all the help.
--Scott Simontis--
Per Westermark wrote:
> First of all, you forgot to specify bool as return type for the LoadTGA()
> member function.
>
> Then you have also misspelled the some property fields 'height' instead of
> 'height_' for example.
>
> /Per W
>
> On Tue, 2 Nov 2004, Scott Simontis wrote:
>
>
>>Here it is:
>>
>>TGALOADER.H
>>
>>#ifndef TGALOADER_H
>>#define TGALOADER_H
>>
>>#include <gl/gl.h>
>>#include <string>
>>using std::string;
>>
>>class TGAImage
>>{
>> public:
>> bool LoadTGA( TGAImage* texture, string filename, GLuint texType );
>> private:
>> GLubyte* imageData_;
>> GLuint bpp_;
>> GLuint width_;
>> GLuint height_;
>> GLuint texID_;
>>};
>>
>>#endif
>>
>>
>>TGALOADER.CPP
>>
>>#include "tgaloader.h"
>>#include <gl/gl.h>
>>#include <string>
>>#include <cstdio>
>>using std::string;
>>
>>TGAImage::LoadTGA( TGAImage* texture, string filename, GLuint texType )
>>{
>> GLubyte tgaHeader[12] = { 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
>> GLubyte imgHeader[12]; //The files header, to be compared with the
>>above header
>> GLubyte header[6]; //Width, height, and bpp info
>> GLuint bpp;
>> GLuint imageSize;
>> GLuint swap;
>> GLuint type = GL_RGBA;
>>
>> FILE* image = fopen( filename.c_str(), "rb" );
>>
>> if( NULL == image ||
>> fread( imgHeader, 1, sizeof(imgHeader), image ) !=
>>sizeof(imgHeader) ||
>> memcmp( tgaHeader, imgHeader, sizeof(tgaHeader) ) != 0 ||
>> fread( header, 1, sizeof(header), image ) != sizeof(header) )
>> {
>> if( NULL == image )
>> {
>> return false;
>> }
>> else
>> {
>> fclose( image );
>> return false;
>> }
>> }
>>
>> texture->width_ = header[1] * 256 + header[0];
>> texture->height_ = header[3] * 256 + header[2];
>>
>> if( texture->width_ <= 0 ||
>> texture->height <= 0 ||
>> ( header[4] != 24 && header[4] != 32 ) )
>> {
>> fclose( image );
>> return false;
>> }
>>
>> texture->bpp_ = header[4];
>> bpp = texture->bpp_ / 8; //Get the bytes per pixel from the bits
>>per pixel
>> imageSize = texture->width_ * texture->height_ * bpp;
>> texture->imageData_ = (GLubyte*)malloc( imageSize );
>>
>> if( NULL == texture->imageData_ ||
>> fread( texture->imageData_, 1, imageSize, image ) != imageSize )
>> {
>> if( texture->imageData_ != NULL )
>> {
>> free( texture->imageData_ );
>> }
>> fclose( image );
>> return false;
>> }
>>
>> for( int i = 0; i < int(imageSize); i+= bpp )
>> {
>> swap = texture->imageData_[i];
>> texture->imageData_[i] = texture->imageData_[i + 2];
>> texture->imageData_[i + 2] = swap;
>> }
>> fclose( image );
>>
>> glGenTextures( 1, &texture[0]->texID_ );
>> glBindTexture( GL_TEXTURE_2D, &texture[0]->texID_ );
>>
>> if( 0 == texType )
>> {
>> glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
>>GL_NEAREST );
>> glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
>>GL_NEAREST );
>> }
>> if( 1 == texType )
>> {
>> glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
>> glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
>> }
>>
>>
>> if( 24 == texture[0].bpp_ )
>> {
>> type = GL_RGB;
>> }
>>
>> glTexImage2D( GL_TEXTURE_2D, 0, type, texture[0].width_,
>>texture[0]->height_, 0, GL_UNSIGNED_BYTE, texture[0]->imageData_ );
>>
>> return true;
>>}
>>
>>--Scott Simontis--
>>
>>Per Westermark wrote:
>>
>>>It is nice that you have posted your error messages. However, since we
>>>can't see your code, we can't say what you are doing wrong.
>>>
>>>/Per W
>>>
>>>On Mon, 1 Nov 2004, Scott Simontis wrote:
>>>
>>>
>>>
>>>>I am working on a TGA file loader for OpenGL. I keep getting lots of
>>>>errors. It looks like the header file for the TGA loader isn't being
>>>>seen, so the definition cannot be found. Does anyone know why it isn't
>>>>working? Its about 130 lines of code or so, and is at
>>>>http://home.comcast.net/~ageofscott/tgacode.zip
>>>>compilation errors are below:
>>>>
>>>>
>>>>Compiler: Default compiler
>>>>Building Makefile: "C:\Code\scifair\Makefile.win"
>>>>Executing make...
>>>>mingw32-make.exe -f "C:\Code\scifair\Makefile.win" all
>>>>g++.exe -c tgaloader.cpp -o tgaloader.o -I"C:/Dev-Cpp/include/c++/3.3.1"
>>>> -I"C:/Dev-Cpp/include/c++/3.3.1/mingw32"
>>>>-I"C:/Dev-Cpp/include/c++/3.3.1/backward"
>>>>-I"C:/Dev-Cpp/lib/gcc-lib/mingw32/3.3.1/include" -I"C:/Dev-Cpp/include"
>>>> -I"C:/Dev-Cpp/include/GL" -I"C:/Dev-Cpp/include/SDL"
>>>>-I"C:/Dev-Cpp/include/allegro" -I"C:/Dev-Cpp/allegro/include"
>>>>-I"C:/wx/include" -I"C:/Code"
>>>>
>>>>tgaloader.cpp:29: error: ISO C++ forbids declaration of `LoadTGA' with
>>>>no type
>>>>
>>>>tgaloader.cpp:29: error: prototype for `int TGAImage::LoadTGA(TGAImage*,
>>>>std::string, GLuint)' does not match any in class `TGAImage'
>>>>tgaloader.h:18: error: candidate is: bool TGAImage::LoadTGA(TGAImage*,
>>>>std::string, GLuint)
>>>>tgaloader.cpp:29: error: `int TGAImage::LoadTGA(TGAImage*, std::string,
>>>>GLuint)' and `bool TGAImage::LoadTGA(TGAImage*, std::string, GLuint)'
>>>>cannot be overloaded
>>>>
>>>>tgaloader.cpp: In member function `int TGAImage::LoadTGA(TGAImage*,
>>>>std::string, GLuint)':
>>>>tgaloader.cpp:60: error: 'class TGAImage' has no member named 'height'
>>>>tgaloader.cpp:91: error: base operand of `->' has non-pointer type
>>>>`TGAImage'
>>>>tgaloader.cpp:92: error: base operand of `->' has non-pointer type
>>>>`TGAImage'
>>>>tgaloader.cpp:111: error: base operand of `->' has non-pointer type
>>>>`TGAImage'
>>>>tgaloader.cpp:111: error: base operand of `->' has non-pointer type
>>>>`TGAImage'
>>>>
>>>>mingw32-make.exe: *** [tgaloader.o] Error 1
>>>>
>>>>Execution terminated
>>>>
>>>>Thanks in advanced for any help.
>>>>--
>>>>--Scott Simontis--
>>>>
>>>>
>>>>-------------------------------------------------------
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>>>>
>>>
>>>
>>>
>
>
>
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