summaryrefslogtreecommitdiff
path: root/progs/egl/demo1.c
blob: 52673187c4da86bc9cae9e4d517e64e3c74d53a4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/*
 * Exercise EGL API functions
 */

#define EGL_EGLEXT_PROTOTYPES

#include <GLES/egl.h>
#include <GLES/eglext.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


/**
 * Test EGL_MESA_screen_surface functions
 */
static void
TestScreens(EGLDisplay dpy)
{
#define MAX 8
   EGLScreenMESA screens[MAX];
   EGLint numScreens;
   EGLint i;

   eglGetScreensMESA(dpy, screens, MAX, &numScreens);
   printf("Found %d screens\n", numScreens);
   for (i = 0; i < numScreens; i++) {
      printf(" Screen %d handle: %d\n", i, (int) screens[i]);
   }
}

/**
 * Print table of all available configurations.
 */
static void
PrintConfigs(EGLDisplay d)
{
   EGLConfig *configs;
   EGLint numConfigs, i;

   eglGetConfigs(d, NULL, 0, &numConfigs);
   configs = malloc(sizeof(*configs) *numConfigs);
   eglGetConfigs(d, configs, numConfigs, &numConfigs);

   printf("Configurations:\n");
   printf("     bf lv d st colorbuffer dp st   supported \n");
   printf("  id sz  l b ro  r  g  b  a th cl   surfaces  \n");
   printf("----------------------------------------------\n");
   for (i = 0; i < numConfigs; i++) {
      EGLint id, size, level;
      EGLint red, green, blue, alpha;
      EGLint depth, stencil;
      EGLint surfaces;
      EGLint doubleBuf = 1, stereo = 0;
      char surfString[100] = "";

      eglGetConfigAttrib(d, configs[i], EGL_CONFIG_ID, &id);
      eglGetConfigAttrib(d, configs[i], EGL_BUFFER_SIZE, &size);
      eglGetConfigAttrib(d, configs[i], EGL_LEVEL, &level);

      eglGetConfigAttrib(d, configs[i], EGL_RED_SIZE, &red);
      eglGetConfigAttrib(d, configs[i], EGL_GREEN_SIZE, &green);
      eglGetConfigAttrib(d, configs[i], EGL_BLUE_SIZE, &blue);
      eglGetConfigAttrib(d, configs[i], EGL_ALPHA_SIZE, &alpha);
      eglGetConfigAttrib(d, configs[i], EGL_DEPTH_SIZE, &depth);
      eglGetConfigAttrib(d, configs[i], EGL_STENCIL_SIZE, &stencil);
      eglGetConfigAttrib(d, configs[i], EGL_SURFACE_TYPE, &surfaces);

      if (surfaces & EGL_WINDOW_BIT)
         strcat(surfString, "win,");
      if (surfaces & EGL_PBUFFER_BIT)
         strcat(surfString, "pb,");
      if (surfaces & EGL_PIXMAP_BIT)
         strcat(surfString, "pix,");
      if (strlen(surfString) > 0)
         surfString[strlen(surfString) - 1] = 0;

      printf("0x%02x %2d %2d %c  %c %2d %2d %2d %2d %2d %2d   %-12s\n",
             id, size, level,
             doubleBuf ? 'y' : '.',
             stereo ? 'y' : '.',
             red, green, blue, alpha,
             depth, stencil, surfString);
   }
   free(configs);
}



int
main(int argc, char *argv[])
{
   int maj, min;
   EGLContext ctx;
   EGLSurface pbuffer;
   EGLConfig configs[10];
   EGLBoolean b;
   const EGLint pbufAttribs[] = {
      EGL_WIDTH, 500,
      EGL_HEIGHT, 500,
      EGL_NONE
   };

   /*
   EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
   */
   EGLDisplay d = eglGetDisplay((EGLNativeDisplayType) "!EGL_i915");
   assert(d);

   if (!eglInitialize(d, &maj, &min)) {
      printf("demo: eglInitialize failed\n");
      exit(1);
   }

   printf("EGL version = %d.%d\n", maj, min);
   printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));

   PrintConfigs(d);

   ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
   if (ctx == EGL_NO_CONTEXT) {
      printf("failed to create context\n");
      return 0;
   }

   pbuffer = eglCreatePbufferSurface(d, configs[0], pbufAttribs);
   if (pbuffer == EGL_NO_SURFACE) {
      printf("failed to create pbuffer\n");
      return 0;
   }

   b = eglMakeCurrent(d, pbuffer, pbuffer, ctx);
   if (!b) {
      printf("make current failed\n");
      return 0;
   }

   b = eglMakeCurrent(d, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);

   TestScreens(d);

   eglDestroySurface(d, pbuffer);
   eglDestroyContext(d, ctx);
   eglTerminate(d);

   return 0;
}