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rude
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
//-----------------------------------------------------------------------------
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//
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// DevIL Source Example
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// Copyright (C) 2000-2002 by Denton Woods
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// Last modified: 4/22/2002
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//
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// Filename: examples/Simple Example/simple.c
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//
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// Description: Simplest implementation of an DevIL application.
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// Loads an image and saves it to a new image.
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// The images can be of any format and can be different.
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//
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//-----------------------------------------------------------------------------
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// Required include files.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif /* HAVE_CONFIG_H */
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#include <IL/il.h>
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#include <stdio.h>
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/* We would need ILU just because of iluErrorString() function... */
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/* So make it possible for both with and without ILU! */
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#ifdef ILU_ENABLED
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#include <IL/ilu.h>
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#define PRINT_ERROR_MACRO printf("Error: %s\n", iluErrorString(Error))
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#else /* not ILU_ENABLED */
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#define PRINT_ERROR_MACRO printf("Error: 0x%X\n", (unsigned int)Error)
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#endif /* not ILU_ENABLED */
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int main(int argc, char **argv)
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{
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ILuint ImgId;
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ILenum Error;
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// We use the filename specified in the first argument of the command-line.
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if (argc < 2) {
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fprintf(stderr, "DevIL_test : DevIL simple command line application.\n");
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fprintf(stderr, "Usage : DevIL_test <file> [output]\n");
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fprintf(stderr, "Default output is test.tga\n");
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return 1;
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}
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// Check if the shared lib's version matches the executable's version.
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if (ilGetInteger(IL_VERSION_NUM) < IL_VERSION) {
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printf("DevIL version is different...exiting!\n");
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return 2;
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}
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// Initialize DevIL.
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ilInit();
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#ifdef ILU_ENABLED
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iluInit();
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#endif
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// Generate the main image name to use.
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ilGenImages(1, &ImgId);
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// Bind this image name.
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ilBindImage(ImgId);
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// Loads the image specified by File into the image named by ImgId.
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if (!ilLoadImage(argv[1])) {
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printf("Could not open file...exiting.\n");
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return 3;
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}
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// Display the image's dimensions to the end user.
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printf("Width: %d Height: %d Depth: %d Bpp: %d\n",
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ilGetInteger(IL_IMAGE_WIDTH),
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ilGetInteger(IL_IMAGE_HEIGHT),
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ilGetInteger(IL_IMAGE_DEPTH),
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ilGetInteger(IL_IMAGE_BITS_PER_PIXEL));
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// Enable this to let us overwrite the destination file if it already exists.
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ilEnable(IL_FILE_OVERWRITE);
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// If argv[2] is present, we save to this filename, else we save to test.tga.
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if (argc > 2)
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ilSaveImage(argv[2]);
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else
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ilSaveImage("test.tga");
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// We're done with the image, so let's delete it.
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ilDeleteImages(1, &ImgId);
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// Simple Error detection loop that displays the Error to the user in a human-readable form.
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while ((Error = ilGetError())) {
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PRINT_ERROR_MACRO;}
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return 0;
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}
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