- Timestamp:
- Dec 5, 2004, 2:52:56 AM (20 years ago)
- Location:
- orxonox/branches/images/importer
- Files:
-
- 2 edited
-
material.cc (modified) (4 diffs)
-
material.h (modified) (1 diff)
Legend:
- Unmodified
- Added
- Removed
-
orxonox/branches/images/importer/material.cc
r3095 r3096 633 633 } 634 634 635 if(fread(&tgaHeader, sizeof(TGAHeader), 1, fTGA) == 0) /// hmm... don't know if this is io635 if(fread(&tgaHeader, sizeof(TGAHeader), 1, fTGA) == 0) 636 636 { 637 637 printf("Error could not read file header of %s\n", tgaName); … … 651 651 else if(memcmp(cTGAcompare, &tgaHeader, sizeof(TGAHeader)) == 0) 652 652 { 653 //loadCompressedTGA(tgaName, fTGA, texture);653 loadCompressedTGA(tgaName, fTGA, texture); 654 654 if (fTGA) 655 655 fclose (fTGA); … … 735 735 } 736 736 737 #ifdef __auskomentiert__ 738 bool Material::LoadCompressedTGA(Texture * texture,const char * filename, FILE * fTGA) 739 { 740 GLuint pixelcount = Height * Width; /* Nuber of pixels in the image */ 741 GLuint currentpixel = 0; /* Current pixel being read */ 742 GLuint currentbyte = 0; /* Current byte */ 743 GLubyte * colorbuffer = (GLubyte *)malloc(bytesPerPixel); /* Storage for 1 pixel */ 744 745 if(fread(header, sizeof(header), 1, fTGA) == 0) /* Attempt to read header */ 746 { 747 printf("Error could not read info header"); /* Display Error */ 748 if(fTGA != NULL) /* If file is open */ 737 bool Material::loadCompressedTGA(const char * filename, FILE * fTGA, GLuint* texture) 738 { 739 GLubyte header[6]; // First 6 Useful Bytes From The Header 740 GLuint bytesPerPixel; // Holds Number Of Bytes Per Pixel Used In The TGA File 741 GLuint imageSize; // Used To Store The Image Size When Setting Aside Ram 742 GLuint temp; // Temporary Variable 743 GLuint type; 744 GLuint Height; // Height of Image 745 GLuint Width; // Width of Image 746 GLuint Bpp; // Bits Per Pixel 747 748 Image* pImage = new Image; 749 750 751 if(fread(header, sizeof(header), 1, fTGA) == 0) 752 { 753 printf("Error could not read info header\n"); 754 return false; 755 } 756 757 Width = pImage->width = header[1] * 256 + header[0]; 758 Height = pImage->height = header[3] * 256 + header[2]; 759 Bpp = pImage->bpp = header[4]; 760 761 GLuint pixelcount = Height * Width; 762 GLuint currentpixel = 0; 763 GLuint currentbyte = 0; 764 GLubyte * colorbuffer = (GLubyte *)malloc(bytesPerPixel); 765 766 //Make sure all pImage info is ok 767 if((pImage->width <= 0) || (pImage->height <= 0) || ((pImage->bpp != 24) && (pImage->bpp !=32))) 768 { 769 printf("Error Invalid pImage information\n"); 770 return false; 771 } 772 773 bytesPerPixel = (Bpp / 8); 774 imageSize = (bytesPerPixel * Width * Height); 775 pImage->data = (GLubyte*) malloc(imageSize); 776 777 if(pImage->data == NULL) 778 { 779 printf("Error could not allocate memory for image\n"); 780 return false; 781 } 782 783 do 784 { 785 GLubyte chunkheader = 0; 786 787 if(fread(&chunkheader, sizeof(GLubyte), 1, fTGA) == 0) 749 788 { 750 fclose(fTGA); /* Close it */ 789 printf("Error could not read RLE header\n"); 790 if(pImage->data != NULL) 791 { 792 free(pImage->data); 793 } 794 return false; 751 795 } 752 return false; /* Return failed */ 753 } 754 755 pImage->width = header[1] * 256 + header[0]; /* Determine The TGA Width (highbyte*256+lowbyte) */ 756 pImage->height = header[3] * 256 + header[2]; /* Determine The TGA Height (highbyte*256+lowbyte) */ 757 pImage->bpp = header[4]; /* Determine Bits Per Pixel */ 758 Width = pImage->width; /* Copy width to local structure */ 759 Height = pImage->height; /* Copy width to local structure */ 760 Bpp = pImage->bpp; /* Copy width to local structure */ 761 762 if((pImage->width <= 0) || (pImage->height <= 0) || ((pImage->bpp != 24) && (pImage->bpp !=32))) /*Make sure all pImage info is ok */ 763 { 764 printf("Error Invalid pImage information"); /* If it isnt...Display error */ 765 if(fTGA != NULL) /* Check if file is open */ 796 // If the ehader is < 128, it means the that is the number of RAW color packets minus 1 797 if(chunkheader < 128) 766 798 { 767 fclose(fTGA); /* Ifit is, close it */ 768 } 769 return false; /* Return failed */ 770 } 771 772 bytesPerPixel = (Bpp / 8); /* Compute BYTES per pixel */ 773 imageSize = (bytesPerPixel * Width * Height); /* Compute amout of memory needed to store image */ 774 pImage->data = (GLubyte *)malloc(imageSize); /* Allocate that much memory */ 775 776 if(pImage->data == NULL) /* If it wasnt allocated correctly.. */ 777 { 778 printf("Error could not allocate memory for image"); /* Display Error */ 779 fclose(fTGA); /* Close file */ 780 return false; /* Return failed */ 781 } 782 783 do 784 { 785 GLubyte chunkheader = 0; /* Storage for "chunk" header */ 786 787 if(fread(&chunkheader, sizeof(GLubyte), 1, fTGA) == 0) /* Read in the 1 byte header */ 788 { 789 printf("Error could not read RLE header"); /*Display Error */ 790 if(fTGA != NULL) /* If file is open */ 791 { 792 fclose(fTGA); /* Close file */ 793 } 794 if(pImage->data != NULL) /* If there is stored image data */ 795 { 796 free(pImage->data); /* Delete image data */ 797 } 798 return false; /* Return failed */ 799 } 800 801 if(chunkheader < 128) /* If the ehader is < 128, it means the that is the number of RAW color packets minus 1 */ 802 { 803 short counter; /* that follow the header */ 804 chunkheader++; /* add 1 to get number of following color values */ 805 for(counter = 0; counter < chunkheader; counter++) /* Read RAW color values */ 806 { 807 if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) /* Try to read 1 pixel */ 799 short counter; 800 chunkheader++; 801 // Read RAW color values 802 for(counter = 0; counter < chunkheader; counter++) 803 { 804 // Try to read 1 pixel 805 if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) 808 806 { 809 printf("Error could not read image data"); /* IF we cant, display an error */ 810 811 if(fTGA != NULL) /* See if file is open */ 807 printf("Error could not read image data\n"); 808 if(colorbuffer != NULL) 812 809 { 813 f close(fTGA); /* If so, close file */810 free(colorbuffer); 814 811 } 815 812 816 if( colorbuffer != NULL) /* See if colorbuffer has data in it */813 if(pImage->data != NULL) 817 814 { 818 free( colorbuffer); /* If so, delete it */815 free(pImage->data); 819 816 } 820 817 821 if(pImage->data != NULL) /* See if there is stored Image data */ 818 return false; 819 } 820 // write to memory 821 // Flip R and B vcolor values around in the process 822 pImage->data[currentbyte ] = colorbuffer[2]; 823 pImage->data[currentbyte + 1] = colorbuffer[1]; 824 pImage->data[currentbyte + 2] = colorbuffer[0]; 825 826 if(bytesPerPixel == 4) // if its a 32 bpp image 827 { 828 pImage->data[currentbyte + 3] = colorbuffer[3];// copy the 4th byte 829 } 830 831 currentbyte += bytesPerPixel; 832 currentpixel++; 833 834 // Make sure we haven't read too many pixels 835 if(currentpixel > pixelcount) 836 { 837 printf("Error too many pixels read\n"); 838 if(colorbuffer != NULL) 822 839 { 823 free( pImage->data); /* If so, delete it too */840 free(colorbuffer); 824 841 } 825 842 826 return false; /* Return failed */ 827 } 828 /* write to memory */ 829 pImage->data[currentbyte ] = colorbuffer[2]; /* Flip R and B vcolor values around in the process */ 830 pImage->data[currentbyte + 1 ] = colorbuffer[1]; 831 pImage->data[currentbyte + 2 ] = colorbuffer[0]; 832 833 if(bytesPerPixel == 4) /* if its a 32 bpp image */ 834 { 835 pImage->data[currentbyte + 3] = colorbuffer[3]; /* copy the 4th byte */ 836 } 837 838 currentbyte += bytesPerPixel; /* Increase thecurrent byte by the number of bytes per pixel */ 839 currentpixel++; /* Increase current pixel by 1 */ 840 841 if(currentpixel > pixelcount) /* Make sure we havent read too many pixels */ 842 { 843 printf("Error too many pixels read"); /* if there is too many... Display an error! */ 844 845 if(fTGA != NULL) /* If there is a file open */ 843 if(pImage->data != NULL) 846 844 { 847 f close(fTGA); /* Close file */845 free(pImage->data); 848 846 } 849 847 850 if(colorbuffer != NULL) /* If there is data in colorbuffer */ 851 { 852 free(colorbuffer); /* Delete it */ 853 } 854 855 if(pImage->data != NULL) /* If there is Image data */ 856 { 857 free(pImage->data); /* delete it */ 858 } 859 860 return false; /* Return failed */ 848 return false; 861 849 } 862 850 } 863 851 } 864 else /* chunkheader > 128 RLE data, next color reapeated chunkheader - 127 times */ 852 // chunkheader > 128 RLE data, next color reapeated chunkheader - 127 times 853 else 865 854 { 866 855 short counter; 867 chunkheader -= 127; /* Subteact 127 to get rid of the ID bit */868 if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) /* Attempt to read following color values */856 chunkheader -= 127; // Subteact 127 to get rid of the ID bit 857 if(fread(colorbuffer, 1, bytesPerPixel, fTGA) != bytesPerPixel) // Attempt to read following color values 869 858 { 870 printf("Error could not read from file"); /* If attempt fails.. Display error (again) */ 871 872 if(fTGA != NULL) /* If thereis a file open */ 859 printf("Error could not read from file"); 860 if(colorbuffer != NULL) 873 861 { 874 f close(fTGA); /* Close it */862 free(colorbuffer); 875 863 } 876 864 877 if( colorbuffer != NULL) /* If there is data in the colorbuffer */865 if(pImage->data != NULL) 878 866 { 879 free( colorbuffer); /* delete it */867 free(pImage->data); 880 868 } 881 869 882 if(pImage->data != NULL) /* If thereis image data */ 870 return false; 871 } 872 873 for(counter = 0; counter < chunkheader; counter++) //copy the color into the image data as many times as dictated 874 { 875 // switch R and B bytes areound while copying /* by the header */ 876 pImage->data[currentbyte ] = colorbuffer[2]; 877 pImage->data[currentbyte + 1] = colorbuffer[1]; 878 pImage->data[currentbyte + 2] = colorbuffer[0]; 879 880 if(bytesPerPixel == 4) 883 881 { 884 free(pImage->data); /* delete it */882 pImage->data[currentbyte + 3] = colorbuffer[3]; 885 883 } 886 884 887 return false; /* return failed */ 888 } 889 890 for(counter = 0; counter < chunkheader; counter++) /* copy the color into the image data as many times as dictated */ 891 { /* by the header */ 892 pImage->data[currentbyte ] = colorbuffer[2]; /* switch R and B bytes areound while copying */ 893 pImage->data[currentbyte + 1 ] = colorbuffer[1]; 894 pImage->data[currentbyte + 2 ] = colorbuffer[0]; 885 currentbyte += bytesPerPixel; 886 currentpixel++; 895 887 896 if( bytesPerPixel == 4) /* If TGA images is 32 bpp */888 if(currentpixel > pixelcount) 897 889 { 898 pImage->data[currentbyte + 3] = colorbuffer[3]; /* Copy 4th byte */ 899 } 900 901 currentbyte += bytesPerPixel; /* Increase current byte by the number of bytes per pixel */ 902 currentpixel++; /* Increase pixel count by 1 */ 903 904 if(currentpixel > pixelcount) /* Make sure we havent written too many pixels */ 905 { 906 printf("Error too many pixels read"); /* if there is too many... Display an error! */ 907 908 if(fTGA != NULL) /* If there is a file open */ 890 printf("Error too many pixels read\n"); 891 if(colorbuffer != NULL) 909 892 { 910 f close(fTGA); /* Close file */893 free(colorbuffer); 911 894 } 912 895 913 if( colorbuffer != NULL) /* If there is data in colorbuffer */896 if(pImage->data != NULL) 914 897 { 915 free( colorbuffer); /* Delete it */898 free(pImage->data); 916 899 } 917 900 918 if(pImage->data != NULL) /* If there is Image data */ 919 { 920 free(pImage->data); /* delete it */ 921 } 922 923 return false; /* Return failed */ 901 return false; 924 902 } 925 903 } … … 927 905 } 928 906 929 while(currentpixel < pixelcount); 930 fclose(fTGA); /* Close the file */931 return true; /* return success */ 932 } 933 934 #endif 907 while(currentpixel < pixelcount); /* Loop while there are still pixels left */ 908 loadTexToGL (pImage, texture); 909 910 return true; 911 } 912 -
orxonox/branches/images/importer/material.h
r3095 r3096 100 100 bool loadTGA(const char * tgaName, GLuint* texture); 101 101 bool loadUncompressedTGA(const char * filename, FILE * fTGA, GLuint* texture); 102 // bool LoadCompressedTGA(const char * filename, FILE * fTGA, GLuint* texture);102 bool loadCompressedTGA(const char * filename, FILE * fTGA, GLuint* texture); 103 103 104 104 };
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