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nuclear@2
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1 #include <stdio.h>
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nuclear@2
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2 #include <assert.h>
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nuclear@3
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3 #include <unistd.h>
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nuclear@1
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4 #include "opengl.h"
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nuclear@0
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5 #include "istereo.h"
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nuclear@2
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6 #include "sanegl.h"
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nuclear@2
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7 #include "sdr.h"
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nuclear@4
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8 #include "respath.h"
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nuclear@4
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9
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nuclear@4
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10 static unsigned int get_shader_program(const char *vfile, const char *pfile);
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nuclear@2
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11
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nuclear@2
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12 unsigned int prog;
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nuclear@0
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13
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nuclear@0
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14 int init(void)
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nuclear@0
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15 {
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nuclear@4
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16 add_resource_path("sdr");
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nuclear@3
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17
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nuclear@4
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18 if(!(prog = get_shader_program("test.v.glsl", "test.p.glsl"))) {
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nuclear@2
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19 fprintf(stderr, "failed to load shader program\n");
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nuclear@2
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20 return -1;
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nuclear@2
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21 }
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nuclear@2
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22
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nuclear@0
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23 return 0;
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nuclear@0
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24 }
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nuclear@0
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25
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nuclear@0
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26 void cleanup(void)
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nuclear@0
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27 {
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nuclear@2
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28 free_program(prog);
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nuclear@0
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29 }
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nuclear@0
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30
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nuclear@0
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31 void redraw(void)
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nuclear@0
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32 {
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nuclear@0
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33 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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nuclear@2
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34
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nuclear@2
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35 bind_program(prog);
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nuclear@2
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36
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nuclear@2
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37 gl_matrix_mode(GL_MODELVIEW);
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nuclear@2
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38 gl_load_identity();
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nuclear@2
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39 gl_translatef(0, 0, -8);
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nuclear@2
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40
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nuclear@2
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41 gl_begin(GL_QUADS);
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nuclear@2
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42 gl_color3f(1, 0, 0);
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nuclear@2
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43 gl_vertex3f(-1, -1, 0);
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nuclear@2
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44 gl_color3f(0, 1, 0);
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nuclear@2
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45 gl_vertex3f(1, -1, 0);
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nuclear@2
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46 gl_color3f(0, 0, 1);
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nuclear@2
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47 gl_vertex3f(1, 1, 0);
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nuclear@2
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48 gl_color3f(1, 1, 0);
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nuclear@2
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49 gl_vertex3f(-1, 1, 0);
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nuclear@2
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50 gl_end();
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nuclear@2
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51
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nuclear@2
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52 assert(glGetError() == GL_NO_ERROR);
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nuclear@0
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53 }
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nuclear@2
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54
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nuclear@2
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55 void reshape(int x, int y)
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nuclear@2
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56 {
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nuclear@2
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57 glViewport(0, 0, x, y);
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nuclear@2
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58
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nuclear@2
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59 gl_matrix_mode(GL_PROJECTION);
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nuclear@2
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60 gl_load_identity();
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nuclear@2
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61 glu_perspective(45.0, (float)x / (float)y, 1.0, 1000.0);
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nuclear@2
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62 }
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nuclear@4
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63
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nuclear@4
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64 static unsigned int get_shader_program(const char *vfile, const char *pfile)
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nuclear@4
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65 {
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nuclear@4
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66 unsigned int prog, vs, ps;
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nuclear@4
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67
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nuclear@4
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68 if(!(vs = get_vertex_shader(find_resource(vfile, 0, 0)))) {
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nuclear@4
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69 return -1;
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nuclear@4
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70 }
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nuclear@4
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71 if(!(ps = get_pixel_shader(find_resource(pfile, 0, 0)))) {
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nuclear@4
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72 return -1;
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nuclear@4
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73 }
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nuclear@4
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74
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nuclear@4
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75 if(!(prog = create_program_link(vs, ps))) {
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nuclear@4
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76 return -1;
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nuclear@4
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77 }
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nuclear@4
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78 return prog;
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nuclear@4
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79 }
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