test/testgles.c
author Holmes Futrell <hfutrell@umail.ucsb.edu>
Fri, 15 Aug 2008 00:54:21 +0000
branchgsoc2008_iphone
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permissions -rw-r--r--
A version of testgl2 written using OpenGL ES calls. Necessary because there's no glBegin/glEnd, etc.
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include "common.h"
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#ifdef __IPHONEOS__
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#define HAVE_OPENGLES
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#endif
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#ifdef HAVE_OPENGLES
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#include "SDL_opengles.h"
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static CommonState *state;
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static SDL_GLContext context;
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void
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quit(int rc)
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{
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    if (context) {
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        /* SDL_GL_MakeCurrent(0, NULL); *//* doesn't do anything */
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        SDL_GL_DeleteContext(context);
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    }
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    CommonQuit(state);
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    exit(rc);
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}
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static void
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Render()
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{
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	static GLubyte color[8][4] = { {255, 0, 0, 0},
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		{ 255,	0, 0, 255},
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		{	0, 255, 0, 255},
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		{	0, 255, 0, 255},
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		{	0, 255, 0, 255},
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		{ 255, 255, 255, 255},
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		{ 255,	0, 255, 255},
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		{	0,	0, 255, 255}
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    };
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    static GLfloat cube[8][3] = { {0.5, 0.5, -0.5},
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		{0.5f, -0.5f, -0.5f},
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		{-0.5f, -0.5f, -0.5f},
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		{-0.5f, 0.5f, -0.5f},
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		{-0.5f, 0.5f, 0.5f},
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		{0.5f, 0.5f, 0.5f},
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		{0.5f, -0.5f, 0.5f},
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		{-0.5f, -0.5f, 0.5f}
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    };
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	static GLubyte indices[36] = { 0, 3, 4,\
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								   4, 5, 0,\
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								   0, 5, 6,\
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								   6, 1, 0,\
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								   6, 7, 2,\
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								   2, 1, 6,\
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								   7, 4, 3,\
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								   3, 2, 7,\
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								   5, 4, 7,\
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								   7, 6, 5,\
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								   2, 3, 1,\
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								   3, 0, 1 };
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    /* Do our drawing, too. */
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    glClearColor(0.0, 0.0, 0.0, 1.0);
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    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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	/* Draw the cube */
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	glColorPointer(4, GL_UNSIGNED_BYTE, 0, color);
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	glEnableClientState(GL_COLOR_ARRAY);
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	glVertexPointer(3, GL_FLOAT, 0, cube);
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	glEnableClientState(GL_VERTEX_ARRAY);
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	glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_BYTE, indices);
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    glMatrixMode(GL_MODELVIEW);
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    glRotatef(5.0, 1.0, 1.0, 1.0);
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}
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int
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main(int argc, char *argv[])
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{
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    int fsaa, accel;
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    int value;
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    int i, done;
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    SDL_DisplayMode mode;
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    SDL_Event event;
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    Uint32 then, now, frames;
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    /* Initialize parameters */
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    fsaa = 0;
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    accel = 0;
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    /* Initialize test framework */
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    state = CommonCreateState(argv, SDL_INIT_VIDEO);
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    if (!state) {
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        return 1;
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    }
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    for (i = 1; i < argc;) {
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        int consumed;
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        consumed = CommonArg(state, 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
   104
        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
   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.
Holmes Futrell <hfutrell@umail.ucsb.edu>
parents:
diff changeset
   106
                ++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
   107
                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
   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.
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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>
parents:
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>
parents:
diff changeset
   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>
parents:
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>
parents:
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>
parents:
diff changeset
   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>
parents:
diff changeset
   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>
parents:
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>
parents:
diff changeset
   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>
parents:
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:
diff changeset
   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>
parents:
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.
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            SDL_GL_MakeCurrent(state->windows[i], context);
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            SDL_GetWindowSize(state->windows[i], &w, &h);
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            glViewport(0, 0, w, h);
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            Render();
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            SDL_GL_SwapWindow(state->windows[i]);
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        }
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    }
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    /* Print out some timing information */
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    now = SDL_GetTicks();
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    if (now > then) {
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        printf("%2.2f frames per second\n",
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               ((double) frames * 1000) / (now - then));
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    }
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    quit(0);
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    return 0;
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}
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#else /* HAVE_OPENGLES */
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int
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main(int argc, char *argv[])
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{
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    printf("No OpenGL ES support on this system\n");
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    return 1;
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}
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#endif /* HAVE_OPENGLES */