| 1 | #ifdef HAVE_CONFIG_H |
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| 2 | # include "config.h" |
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| 3 | #endif |
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| 4 | |
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| 5 | #ifdef HAVE_GL_GL_H |
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| 6 | # include <GL/gl.h> |
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| 7 | #elif HAVE_OPENGL_GL_H |
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| 8 | # include <OpenGL/gl.h> |
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| 9 | #endif |
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| 10 | #ifdef HAVE_GL_GLU_H |
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| 11 | # include <GL/glu.h> |
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| 12 | #elif HAVE_OPENGL_GLU_H |
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| 13 | # include <OpenGL/glu.h> |
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| 14 | #endif |
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| 15 | #include <netcdf.h> |
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| 16 | #include <SDL.h> |
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| 17 | #include "error.h" |
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| 18 | #include "globals.h" |
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| 19 | |
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| 20 | int AnugaVis_Init(int width, int height, const char *swwFilePath){ |
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| 21 | int ncstatus; |
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| 22 | int ncdimid; |
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| 23 | if((SDL_Init(SDL_INIT_VIDEO) == -1) || |
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| 24 | (SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5) == -1) || |
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| 25 | (SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5) == -1) || |
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| 26 | (SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5) == -1) || |
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| 27 | (SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16) == -1) || |
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| 28 | (SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1) == -1) || |
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| 29 | ((anugavis.screen = |
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| 30 | SDL_SetVideoMode(width, height, 16, SDL_OPENGL)) == NULL)){ |
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| 31 | AnugaVis_SDLError(); |
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| 32 | return -1; |
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| 33 | } |
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| 34 | |
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| 35 | glEnable(GL_DEPTH_TEST); |
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| 36 | glShadeModel(GL_FLAT); |
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| 37 | glEnable(GL_NORMALIZE); |
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| 38 | glMatrixMode(GL_PROJECTION); |
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| 39 | gluPerspective(45.0, ((GLdouble)width)/((GLdouble)height), 0.1, 1000); |
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| 40 | glMatrixMode(GL_MODELVIEW); |
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| 41 | glLoadIdentity(); |
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| 42 | |
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| 43 | if((ncstatus = nc_open(swwFilePath, NC_SHARE, |
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| 44 | &anugavis.netcdfId)) != NC_NOERR) goto nc_err; |
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| 45 | if((ncstatus = nc_inq_dimid(anugavis.netcdfId, "number_of_points", |
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| 46 | &ncdimid)) != NC_NOERR) goto nc_err; |
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| 47 | if((ncstatus = nc_inq_dimlen(anugavis.netcdfId, ncdimid, |
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| 48 | &anugavis.number_of_points)) != NC_NOERR) |
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| 49 | goto nc_err; |
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| 50 | |
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| 51 | anugavis.heights = NULL; |
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| 52 | return 0; |
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| 53 | nc_err: |
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| 54 | AnugaVis_NetCDFError(ncstatus); |
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| 55 | SDL_Quit(); |
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| 56 | return -1; |
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| 57 | } |
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| 58 | |
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| 59 | void AnugaVis_DeInit(void){ |
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| 60 | while(anugavis.heights != NULL) |
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| 61 | AnugaVis_UndefineHeightQuantity(anugavis.heights->name); |
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| 62 | nc_close(anugavis.netcdfId); |
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| 63 | SDL_Quit(); |
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| 64 | } |
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