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annotate test/testgles.c @ 2439:78bddf0c0fa2 gsoc2008_iphone

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Cleaned up code, added comments.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 15 Aug 2008 19:16:01 +0000
parents 166821fa1591
children
rev   line source
2430
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
1 #include <stdlib.h>
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
2 #include <stdio.h>
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
3 #include <string.h>
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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4 #include <math.h>
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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5
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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6 #include "common.h"
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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7
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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8 #ifdef __IPHONEOS__
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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9 #define HAVE_OPENGLES
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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10 #endif
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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11
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
12 #ifdef HAVE_OPENGLES
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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13
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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14 #include "SDL_opengles.h"
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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15
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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16 static CommonState *state;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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17 static SDL_GLContext context;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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18
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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19 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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20 static void
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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21 quit(int rc)
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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22 {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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23 if (context) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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24 /* SDL_GL_MakeCurrent(0, NULL); *//* doesn't do anything */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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25 SDL_GL_DeleteContext(context);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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26 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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27 CommonQuit(state);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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28 exit(rc);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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29 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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30
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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31 static void
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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32 Render()
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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33 {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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34 static GLubyte color[8][4] = { {255, 0, 0, 0},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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35 { 255, 0, 0, 255},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
36 { 0, 255, 0, 255},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
37 { 0, 255, 0, 255},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
38 { 0, 255, 0, 255},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
39 { 255, 255, 255, 255},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
40 { 255, 0, 255, 255},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
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41 { 0, 0, 255, 255}
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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42 };
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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43 static GLfloat cube[8][3] = { {0.5, 0.5, -0.5},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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44 {0.5f, -0.5f, -0.5f},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
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45 {-0.5f, -0.5f, -0.5f},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
46 {-0.5f, 0.5f, -0.5f},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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47 {-0.5f, 0.5f, 0.5f},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
48 {0.5f, 0.5f, 0.5f},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
49 {0.5f, -0.5f, 0.5f},
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
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50 {-0.5f, -0.5f, 0.5f}
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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51 };
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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52 static GLubyte indices[36] = { 0, 3, 4,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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53 4, 5, 0,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
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54 0, 5, 6,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
55 6, 1, 0,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
56 6, 7, 2,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
57 2, 1, 6,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
58 7, 4, 3,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
59 3, 2, 7,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
60 5, 4, 7,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
61 7, 6, 5,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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62 2, 3, 1,\
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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63 3, 0, 1 };
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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64
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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65
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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66 /* Do our drawing, too. */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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67 glClearColor(0.0, 0.0, 0.0, 1.0);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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68 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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69
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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70 /* Draw the cube */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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71 glColorPointer(4, GL_UNSIGNED_BYTE, 0, color);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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72 glEnableClientState(GL_COLOR_ARRAY);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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73 glVertexPointer(3, GL_FLOAT, 0, cube);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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74 glEnableClientState(GL_VERTEX_ARRAY);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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75 glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_BYTE, indices);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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76
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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77 glMatrixMode(GL_MODELVIEW);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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78 glRotatef(5.0, 1.0, 1.0, 1.0);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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79 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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80
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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81 int
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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82 main(int argc, char *argv[])
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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83 {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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84 int fsaa, accel;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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85 int value;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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86 int i, done;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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87 SDL_DisplayMode mode;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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88 SDL_Event event;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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89 Uint32 then, now, frames;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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90
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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91 /* Initialize parameters */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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92 fsaa = 0;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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93 accel = 0;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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94
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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95 /* Initialize test framework */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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96 state = CommonCreateState(argv, SDL_INIT_VIDEO);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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97 if (!state) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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98 return 1;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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99 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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100 for (i = 1; i < argc;) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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101 int consumed;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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102
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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103 consumed = CommonArg(state, i);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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104 if (consumed == 0) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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105 if (SDL_strcasecmp(argv[i], "--fsaa") == 0) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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parents:
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106 ++fsaa;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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107 consumed = 1;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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diff changeset
108 } else if (SDL_strcasecmp(argv[i], "--accel") == 0) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
109 ++accel;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
110 consumed = 1;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
111 } else {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
112 consumed = -1;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
113 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
114 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
115 if (consumed < 0) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
116 fprintf(stderr, "Usage: %s %s [--fsaa] [--accel]\n", argv[0],
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
117 CommonUsage(state));
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
118 quit(1);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
119 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
120 i += consumed;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
121 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
122
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
123 /* Set OpenGL parameters */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
124 state->window_flags |= SDL_WINDOW_OPENGL;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
125 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
126 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
127 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
128 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
129 if (fsaa) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
130 SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
131 SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, fsaa);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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132 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
133 if (accel) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
134 SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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135 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
136 if (!CommonInit(state)) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
137 quit(2);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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138 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
139
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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140 /* Create OpenGL context */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
141 context = SDL_GL_CreateContext(state->windows[0]);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
142 if (!context) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
143 fprintf(stderr, "SDL_GL_CreateContext(): %s\n", SDL_GetError());
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
144 quit(2);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
145 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
146
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
147 if (state->render_flags & SDL_RENDERER_PRESENTVSYNC) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
148 SDL_GL_SetSwapInterval(1);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
149 } else {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
150 SDL_GL_SetSwapInterval(0);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
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151 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
152
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
153 SDL_GetCurrentDisplayMode(&mode);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
154 printf("Screen BPP: %d\n", SDL_BITSPERPIXEL(mode.format));
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
155 printf("\n");
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
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diff changeset
156 printf("Vendor : %s\n", glGetString(GL_VENDOR));
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
157 printf("Renderer : %s\n", glGetString(GL_RENDERER));
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
158 printf("Version : %s\n", glGetString(GL_VERSION));
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
159 printf("Extensions : %s\n", glGetString(GL_EXTENSIONS));
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
160 printf("\n");
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
161
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
162 SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
163 printf("SDL_GL_RED_SIZE: requested %d, got %d\n", 5, value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
164 SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
165 printf("SDL_GL_GREEN_SIZE: requested %d, got %d\n", 5, value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
166 SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
167 printf("SDL_GL_BLUE_SIZE: requested %d, got %d\n", 5, value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
168 SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
169 printf("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", 16, value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
170 if (fsaa) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
171 SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
172 printf("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
173 SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
174 printf("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
175 value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
176 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
177 if (accel) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
178 SDL_GL_GetAttribute(SDL_GL_ACCELERATED_VISUAL, &value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
179 printf("SDL_GL_ACCELERATED_VISUAL: requested 1, got %d\n", value);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
180 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
181
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
182 /* Set rendering settings */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
183 glMatrixMode(GL_PROJECTION);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
184 glLoadIdentity();
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
185 glOrthof(-2.0, 2.0, -2.0, 2.0, -20.0, 20.0);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
186 glMatrixMode(GL_MODELVIEW);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
187 glLoadIdentity();
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
188 glEnable(GL_DEPTH_TEST);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
189 glDepthFunc(GL_LESS);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
190 glShadeModel(GL_SMOOTH);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
191
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
192 /* Main render loop */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
193 frames = 0;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
194 then = SDL_GetTicks();
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
195 done = 0;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
196 while (!done) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
197 /* Check for events */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
198 ++frames;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
199 while (SDL_PollEvent(&event)) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
200 CommonEvent(state, &event, &done);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
201 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
202 for (i = 0; i < state->num_windows; ++i) {
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
203 int w, h;
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
204 SDL_GL_MakeCurrent(state->windows[i], context);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
205 SDL_GetWindowSize(state->windows[i], &w, &h);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
206 glViewport(0, 0, w, h);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
207 Render();
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
208 SDL_GL_SwapWindow(state->windows[i]);
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
209 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
210 }
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
211
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
212 /* Print out some timing information */
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
213 now = SDL_GetTicks();
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
214 if (now > then) {
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215 printf("%2.2f frames per second\n",
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216 ((double) frames * 1000) / (now - then));
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217 }
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218 quit(0);
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219 return 0;
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220 }
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221
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222 #else /* HAVE_OPENGLES */
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223
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224 int
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225 main(int argc, char *argv[])
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226 {
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227 printf("No OpenGL ES support on this system\n");
166821fa1591 A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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228 return 1;
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229 }
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230
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231 #endif /* HAVE_OPENGLES */