- Timestamp:
- Dec 5, 2004, 1:55:40 AM (20 years ago)
- Location:
- orxonox/branches/images/importer
- Files:
-
- 2 edited
-
material.cc (modified) (9 diffs)
-
material.h (modified) (3 diffs)
Legend:
- Unmodified
- Added
- Removed
-
orxonox/branches/images/importer/material.cc
r3093 r3094 12 12 main-programmer: Benjamin Grauer 13 13 co-programmer: ... 14 15 TGA-code: borrowed from nehe-Tutorials 14 16 */ 15 17 … … 357 359 } 358 360 361 bool Material::loadTexToGL (Image* pImage, GLuint* texture) 362 { 363 glGenTextures(1, texture); 364 glBindTexture(GL_TEXTURE_2D, *texture); 365 /* not Working, and not needed. 366 glTexImage2D( GL_TEXTURE_2D, 0, 3, width, 367 height, 0, GL_BGR, 368 GL_UNSIGNED_BYTE, map->pixels ); 369 */ 370 gluBuild2DMipmaps(GL_TEXTURE_2D, 3, pImage->width, pImage->height, GL_RGB, GL_UNSIGNED_BYTE, pImage->data); 371 372 glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST); 373 glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR_MIPMAP_LINEAR); 374 } 375 376 377 359 378 /** 360 379 \brief Makes the Programm ready to Read-in a texture-File … … 376 395 printf ("Requested jpeg-image. Trying to Import\n"); 377 396 return loadJPG(imageName, texture); 397 } 398 else if (!strncmp(imageName+strlen(imageName)-4, ".tga", 4)) 399 { 400 if (verbose >=2) 401 printf ("Requested tga-image. Trying to Import\n"); 402 return loadTGA(imageName, texture); 378 403 } 379 404 else … … 412 437 413 438 // read the width 414 if ((i = fread(&pImage-> sizeX, 4, 1, file)) != 1)439 if ((i = fread(&pImage->width, 4, 1, file)) != 1) 415 440 { 416 441 if (verbose >=1) … … 419 444 } 420 445 // read the height 421 if ((i = fread(&pImage-> sizeY, 4, 1, file)) != 1)446 if ((i = fread(&pImage->height, 4, 1, file)) != 1) 422 447 { 423 448 if (verbose>=1) … … 427 452 428 453 // calculate the size (assuming 24 bits or 3 bytes per pixel). 429 size = pImage-> sizeX * pImage->sizeY* 3;454 size = pImage->width * pImage->height * 3; 430 455 431 456 // read the planes … … 565 590 // Get the image dimensions and row span to read in the pixel data 566 591 pImageData->rowSpan = cinfo->image_width * cinfo->num_components; 567 pImageData-> sizeX= cinfo->image_width;568 pImageData-> sizeY= cinfo->image_height;592 pImageData->width = cinfo->image_width; 593 pImageData->height = cinfo->image_height; 569 594 570 595 // Allocate memory for the pixel buffer 571 pImageData->data = new unsigned char[pImageData->rowSpan * pImageData-> sizeY];596 pImageData->data = new unsigned char[pImageData->rowSpan * pImageData->height]; 572 597 573 598 // Here we use the library's state variable cinfo.output_scanline as the … … 575 600 576 601 // Create an array of row pointers 577 unsigned char** rowPtr = new unsigned char*[pImageData-> sizeY];578 for (int i = 0; i < pImageData-> sizeY; i++)602 unsigned char** rowPtr = new unsigned char*[pImageData->height]; 603 for (int i = 0; i < pImageData->height; i++) 579 604 rowPtr[i] = &(pImageData->data[i*pImageData->rowSpan]); 580 605 … … 594 619 } 595 620 596 bool Material::loadTexToGL (Image* pImage, GLuint* texture) 597 { 598 glGenTextures(1, texture); 599 glBindTexture(GL_TEXTURE_2D, *texture); 600 /* not Working, and not needed. 601 glTexImage2D( GL_TEXTURE_2D, 0, 3, width, 602 height, 0, GL_BGR, 603 GL_UNSIGNED_BYTE, map->pixels ); 604 */ 605 gluBuild2DMipmaps(GL_TEXTURE_2D, 3, pImage->sizeX, pImage->sizeY, GL_RGB, GL_UNSIGNED_BYTE, pImage->data); 606 607 glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST); 608 glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR_MIPMAP_LINEAR); 609 610 611 } 621 622 623 624 bool Material::loadTGA(const char * tgaName, GLuint* texture) 625 { 626 typedef struct 627 { 628 GLubyte Header[12]; /* TGA File Header */ 629 } TGAHeader; 630 TGAHeader tgaHeader; 631 632 GLubyte uTGAcompare[12] = {0,0,2, 0,0,0,0,0,0,0,0,0}; /* Uncompressed TGA Header */ 633 GLubyte cTGAcompare[12] = {0,0,10,0,0,0,0,0,0,0,0,0}; /* Compressed TGA Header */ 634 FILE * fTGA; 635 fTGA = fopen(tgaName, "rb"); 636 637 if(fTGA == NULL) 638 { 639 printf("Error could not open texture file: %s\n", tgaName); 640 return false; 641 } 642 643 if(fread(&tgaHeader, sizeof(TGAHeader), 1, fTGA) == 0) /// hmm... don't know if this is io 644 { 645 printf("Error could not read file header of %s\n", tgaName); 646 if(fTGA != NULL) 647 { 648 fclose(fTGA); 649 } 650 return false; 651 } 652 653 if(memcmp(uTGAcompare, &tgaHeader, sizeof(TGAHeader)) == 0) 654 { 655 loadUncompressedTGA(tgaName, fTGA, texture); 656 if (fTGA) 657 fclose (fTGA); 658 } 659 else if(memcmp(cTGAcompare, &tgaHeader, sizeof(TGAHeader)) == 0) 660 { 661 //loadCompressedTGA(tgaName, fTGA, texture); 662 if (fTGA) 663 fclose (fTGA); 664 } 665 else 666 { 667 printf("Error TGA file be type 2 or type 10\n"); 668 if (fTGA) 669 fclose(fTGA); 670 return false; 671 } 672 return true; 673 } 674 675 bool Material::loadUncompressedTGA(const char * filename, FILE * fTGA, GLuint* texture) 676 { 677 GLubyte header[6]; // First 6 Useful Bytes From The Header 678 GLuint bytesPerPixel; // Holds Number Of Bytes Per Pixel Used In The TGA File 679 GLuint imageSize; // Used To Store The Image Size When Setting Aside Ram 680 GLuint temp; // Temporary Variable 681 GLuint type; 682 GLuint Height; // Height of Image 683 GLuint Width; // Width of Image 684 GLuint Bpp; // Bits Per Pixel 685 686 Image* pImage = new Image; 687 GLuint cswap; 688 if(fread(header, sizeof(header), 1, fTGA) == 0) 689 { 690 printf("Error could not read info header\n"); 691 return false; 692 } 693 694 Width = pImage->width = header[1] * 256 + header[0]; 695 Height = pImage->height = header[3] * 256 + header[2]; 696 Bpp = pImage->bpp = header[4]; 697 // Make sure all information is valid 698 if((pImage->width <= 0) || (pImage->height <= 0) || ((pImage->bpp != 24) && (pImage->bpp !=32))) 699 { 700 printf("Error invalid texture information\n"); 701 return false; 702 } 703 704 if(pImage->bpp == 24) 705 { 706 pImage->type = GL_RGB; 707 } 708 else 709 { 710 pImage->type = GL_RGBA; 711 } 712 713 bytesPerPixel = (Bpp / 8); 714 imageSize = (bytesPerPixel * Width * Height); 715 pImage->data = (GLubyte*) malloc(imageSize); 716 717 if(pImage->data == NULL) 718 { 719 printf("Error could not allocate memory for image\n"); 720 return false; 721 } 722 723 if(fread(pImage->data, 1, imageSize, fTGA) != imageSize) 724 { 725 printf("Error could not read image data\n"); 726 if(pImage->data != NULL) 727 { 728 free(pImage->data); 729 } 730 return false; 731 } 732 733 /* Byte Swapping Optimized By Steve Thomas */ 734 for(cswap = 0; cswap < (int)imageSize; cswap += bytesPerPixel) 735 { 736 pImage->data[cswap] ^= pImage->data[cswap+2] ^= 737 pImage->data[cswap] ^= pImage->data[cswap+2]; 738 } 739 740 loadTexToGL (pImage, texture); 741 742 return true; 743 } 744 745 #ifdef __auskomentiert__ 746 bool Material::LoadCompressedTGA(Texture * texture,const char * filename, FILE * fTGA) 747 { 748 GLuint pixelcount = Height * Width; /* Nuber of pixels in the image */ 749 GLuint currentpixel = 0; /* Current pixel being read */ 750 GLuint currentbyte = 0; /* Current byte */ 751 GLubyte * colorbuffer = (GLubyte *)malloc(bytesPerPixel); /* Storage for 1 pixel */ 752 753 if(fread(header, sizeof(header), 1, fTGA) == 0) /* Attempt to read header */ 754 { 755 printf("Error could not read info header"); /* Display Error */ 756 if(fTGA != NULL) /* If file is open */ 757 { 758 fclose(fTGA); /* Close it */ 759 } 760 return false; /* Return failed */ 761 } 762 763 pImage->width = header[1] * 256 + header[0]; /* Determine The TGA Width (highbyte*256+lowbyte) */ 764 pImage->height = header[3] * 256 + header[2]; /* Determine The TGA Height (highbyte*256+lowbyte) */ 765 pImage->bpp = header[4]; /* Determine Bits Per Pixel */ 766 Width = pImage->width; /* Copy width to local structure */ 767 Height = pImage->height; /* Copy width to local structure */ 768 Bpp = pImage->bpp; /* Copy width to local structure */ 769 770 if((pImage->width <= 0) || (pImage->height <= 0) || ((pImage->bpp != 24) && (pImage->bpp !=32))) /*Make sure all pImage info is ok */ 771 { 772 printf("Error Invalid pImage information"); /* If it isnt...Display error */ 773 if(fTGA != NULL) /* Check if file is open */ 774 { 775 fclose(fTGA); /* Ifit is, close it */ 776 } 777 return false; /* Return failed */ 778 } 779 780 bytesPerPixel = (Bpp / 8); /* Compute BYTES per pixel */ 781 imageSize = (bytesPerPixel * Width * Height); /* Compute amout of memory needed to store image */ 782 pImage->data = (GLubyte *)malloc(imageSize); /* Allocate that much memory */ 783 784 if(pImage->data == NULL) /* If it wasnt allocated correctly.. */ 785 { 786 printf("Error could not allocate memory for image"); /* Display Error */ 787 fclose(fTGA); /* Close file */ 788 return false; /* Return failed */ 789 } 790 791 do 792 { 793 GLubyte chunkheader = 0; /* Storage for "chunk" header */ 794 795 if(fread(&chunkheader, sizeof(GLubyte), 1, fTGA) == 0) /* Read in the 1 byte header */ 796 { 797 printf("Error could not read RLE header"); /*Display Error */ 798 if(fTGA != NULL) /* If file is open */ 799 { 800 fclose(fTGA); /* Close file */ 801 } 802 if(pImage->data != NULL) /* If there is stored image data */ 803 { 804 free(pImage->data); /* Delete image data */ 805 } 806 return false; /* Return failed */ 807 } 808 809 if(chunkheader < 128) /* If the ehader is < 128, it means the that is the number of RAW color packets minus 1 */ 810 { 811 short counter; /* that follow the header */ 812 chunkheader++; /* add 1 to get number of following color values */ 813 for(counter = 0; counter < chunkheader; counter++) /* Read RAW color values */ 814 { 815 if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) /* Try to read 1 pixel */ 816 { 817 printf("Error could not read image data"); /* IF we cant, display an error */ 818 819 if(fTGA != NULL) /* See if file is open */ 820 { 821 fclose(fTGA); /* If so, close file */ 822 } 823 824 if(colorbuffer != NULL) /* See if colorbuffer has data in it */ 825 { 826 free(colorbuffer); /* If so, delete it */ 827 } 828 829 if(pImage->data != NULL) /* See if there is stored Image data */ 830 { 831 free(pImage->data); /* If so, delete it too */ 832 } 833 834 return false; /* Return failed */ 835 } 836 /* write to memory */ 837 pImage->data[currentbyte ] = colorbuffer[2]; /* Flip R and B vcolor values around in the process */ 838 pImage->data[currentbyte + 1 ] = colorbuffer[1]; 839 pImage->data[currentbyte + 2 ] = colorbuffer[0]; 840 841 if(bytesPerPixel == 4) /* if its a 32 bpp image */ 842 { 843 pImage->data[currentbyte + 3] = colorbuffer[3]; /* copy the 4th byte */ 844 } 845 846 currentbyte += bytesPerPixel; /* Increase thecurrent byte by the number of bytes per pixel */ 847 currentpixel++; /* Increase current pixel by 1 */ 848 849 if(currentpixel > pixelcount) /* Make sure we havent read too many pixels */ 850 { 851 printf("Error too many pixels read"); /* if there is too many... Display an error! */ 852 853 if(fTGA != NULL) /* If there is a file open */ 854 { 855 fclose(fTGA); /* Close file */ 856 } 857 858 if(colorbuffer != NULL) /* If there is data in colorbuffer */ 859 { 860 free(colorbuffer); /* Delete it */ 861 } 862 863 if(pImage->data != NULL) /* If there is Image data */ 864 { 865 free(pImage->data); /* delete it */ 866 } 867 868 return false; /* Return failed */ 869 } 870 } 871 } 872 else /* chunkheader > 128 RLE data, next color reapeated chunkheader - 127 times */ 873 { 874 short counter; 875 chunkheader -= 127; /* Subteact 127 to get rid of the ID bit */ 876 if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) /* Attempt to read following color values */ 877 { 878 printf("Error could not read from file"); /* If attempt fails.. Display error (again) */ 879 880 if(fTGA != NULL) /* If thereis a file open */ 881 { 882 fclose(fTGA); /* Close it */ 883 } 884 885 if(colorbuffer != NULL) /* If there is data in the colorbuffer */ 886 { 887 free(colorbuffer); /* delete it */ 888 } 889 890 if(pImage->data != NULL) /* If thereis image data */ 891 { 892 free(pImage->data); /* delete it */ 893 } 894 895 return false; /* return failed */ 896 } 897 898 for(counter = 0; counter < chunkheader; counter++) /* copy the color into the image data as many times as dictated */ 899 { /* by the header */ 900 pImage->data[currentbyte ] = colorbuffer[2]; /* switch R and B bytes areound while copying */ 901 pImage->data[currentbyte + 1 ] = colorbuffer[1]; 902 pImage->data[currentbyte + 2 ] = colorbuffer[0]; 903 904 if(bytesPerPixel == 4) /* If TGA images is 32 bpp */ 905 { 906 pImage->data[currentbyte + 3] = colorbuffer[3]; /* Copy 4th byte */ 907 } 908 909 currentbyte += bytesPerPixel; /* Increase current byte by the number of bytes per pixel */ 910 currentpixel++; /* Increase pixel count by 1 */ 911 912 if(currentpixel > pixelcount) /* Make sure we havent written too many pixels */ 913 { 914 printf("Error too many pixels read"); /* if there is too many... Display an error! */ 915 916 if(fTGA != NULL) /* If there is a file open */ 917 { 918 fclose(fTGA); /* Close file */ 919 } 920 921 if(colorbuffer != NULL) /* If there is data in colorbuffer */ 922 { 923 free(colorbuffer); /* Delete it */ 924 } 925 926 if(pImage->data != NULL) /* If there is Image data */ 927 { 928 free(pImage->data); /* delete it */ 929 } 930 931 return false; /* Return failed */ 932 } 933 } 934 } 935 } 936 937 while(currentpixel < pixelcount); /* Loop while there are still pixels left */ 938 fclose(fTGA); /* Close the file */ 939 return true; /* return success */ 940 } 941 942 #endif -
orxonox/branches/images/importer/material.h
r3093 r3094 61 61 { 62 62 int rowSpan; 63 unsigned long sizeX; 64 unsigned long sizeY; 63 GLuint width; 64 GLuint height; 65 GLuint bpp; 66 GLuint type; 65 67 GLubyte *data; 66 68 }; … … 86 88 87 89 // TEXTURING 90 bool loadTexToGL (Image* pImage, GLuint* texture); 91 88 92 bool loadImage(char* imageName, GLuint* texture); 89 93 … … 93 97 void decodeJPG(jpeg_decompress_struct* cinfo, Image *pImageData); 94 98 95 bool loadTexToGL (Image* pImage, GLuint* texture); 99 /// TGA /// 100 101 bool loadTGA(const char * tgaName, GLuint* texture); 102 bool loadUncompressedTGA(const char * filename, FILE * fTGA, GLuint* texture); 103 // bool LoadCompressedTGA(const char * filename, FILE * fTGA, GLuint* texture); 104 96 105 }; 97 106 #endif
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