1 files changed, 147 insertions, 0 deletions
diff --git a/progs/egl/opengl/demo1.c b/progs/egl/opengl/demo1.c
new file mode 100644
index 00000000000..d892734ee55
--- /dev/null
+++ b/progs/egl/opengl/demo1.c
@@ -0,0 +1,147 @@
+/*
+ * Exercise EGL API functions
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/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)
+{
+   EGLint i;
+
+   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);
+   }
+}
+
+
+
+int
+main(int argc, char *argv[])
+{
+   int maj, min;
+   EGLContext ctx;
+   EGLSurface pbuffer;
+   EGLConfig *configs;
+   EGLint numConfigs;
+   EGLBoolean b;
+   const EGLint pbufAttribs[] = {
+      EGL_WIDTH, 500,
+      EGL_HEIGHT, 500,
+      EGL_NONE
+   };
+
+   EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+   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));
+
+   eglGetConfigs(d, NULL, 0, &numConfigs);
+   configs = malloc(sizeof(*configs) *numConfigs);
+   eglGetConfigs(d, configs, numConfigs, &numConfigs);
+
+   PrintConfigs(d, configs, numConfigs);
+
+   eglBindAPI(EGL_OPENGL_API);
+   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;
+   }
+
+   free(configs);
+
+   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;
+}