egl: Add eglscreen to help debug egl mesa screen

diff --git a/progs/egl/.gitignore b/progs/egl/.gitignore
index 497b0ebbe33b2acf47b0ba1fcdc85d5531af69bf..793c6c0f6146ba395f28c3d3653e0fdfa4b7aa07 100644 (file)
--- a/progs/egl/.gitignore
+++ b/progs/egl/.gitignore
@@ -3,6 +3,7 @@ demo2
 demo3
 eglgears
 eglinfo
+eglscreen
 egltri
 peglgears
 xeglgears

diff --git a/progs/egl/Makefile b/progs/egl/Makefile
index f31c21e87e6cd153537bf926f93acad44fc28f4f..e1fdb1ce63d9bb4b32c97666378fd57abe5d9a85 100644 (file)
--- a/progs/egl/Makefile
+++ b/progs/egl/Makefile
@@ -15,6 +15,7 @@ PROGRAMS = \
        egltri \
        eglinfo \
        eglgears \
+       eglscreen \
        peglgears \
        xeglgears \
        xegl_tri
@@ -69,6 +70,11 @@ eglgears: eglgears.o $(TOP)/$(LIB_DIR)/libEGL.so
 eglgears.o: eglgears.c $(HEADERS)
        $(CC) -c $(CFLAGS) -I$(TOP)/include eglgears.c
 
+eglscreen: eglscreen.o $(TOP)/$(LIB_DIR)/libEGL.so
+       $(CC) $(CFLAGS) $(LDFLAGS) eglscreen.o -L$(TOP)/$(LIB_DIR) -lEGL -lGL $(LIBDRM_LIB) $(APP_LIB_DEPS) -o $@
+
+eglscreen.o: eglscreen.c $(HEADERS)
+       $(CC) -c $(CFLAGS) -I$(TOP)/include eglscreen.c
 
 peglgears: peglgears.o $(TOP)/$(LIB_DIR)/libEGL.so
        $(CC) $(CFLAGS) peglgears.o -L$(TOP)/$(LIB_DIR) -lEGL -lGL $(LIBDRM_LIB) $(APP_LIB_DEPS) -o $@

diff --git a/progs/egl/eglscreen.c b/progs/egl/eglscreen.c
new file mode 100644 (file)
index 0000000..f3b7f04
--- /dev/null
+++ b/progs/egl/eglscreen.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Stolen from eglgears
+ *
+ * Creates a surface and show that on the first screen
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <GL/gl.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#define MAX_CONFIGS 10
+#define MAX_MODES 100
+
+int
+main(int argc, char *argv[])
+{
+       int maj, min;
+       EGLSurface screen_surf;
+       EGLConfig configs[MAX_CONFIGS];
+       EGLint numConfigs, i;
+       EGLBoolean b;
+       EGLDisplay d;
+       EGLint screenAttribs[10];
+       EGLModeMESA mode[MAX_MODES];
+       EGLScreenMESA screen;
+       EGLint count, chosenMode;
+       EGLint width = 0, height = 0;
+
+       d = eglGetDisplay((EGLNativeDisplayType)"!EGL_i915");
+       assert(d);
+
+       if (!eglInitialize(d, &maj, &min)) {
+               printf("eglscreen: eglInitialize failed\n");
+               exit(1);
+       }
+
+       printf("eglscreen: EGL version = %d.%d\n", maj, min);
+       printf("eglscreen: EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
+
+       /* XXX use ChooseConfig */
+       eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
+       eglGetScreensMESA(d, &screen, 1, &count);
+
+       if (!eglGetModesMESA(d, screen, mode, MAX_MODES, &count) || count == 0) {
+               printf("eglscreen: eglGetModesMESA failed!\n");
+               return 0;
+       }
+
+       /* Print list of modes, and find the one to use */
+       printf("eglscreen: Found %d modes:\n", count);
+       for (i = 0; i < count; i++) {
+               EGLint w, h;
+               eglGetModeAttribMESA(d, mode[i], EGL_WIDTH, &w);
+               eglGetModeAttribMESA(d, mode[i], EGL_HEIGHT, &h);
+               printf("%3d: %d x %d\n", i, w, h);
+               if (w > width && h > height) {
+                       width = w;
+                       height = h;
+                       chosenMode = i;
+               }
+       }
+       printf("eglscreen: Using screen mode/size %d: %d x %d\n", chosenMode, width, height);
+
+       /* build up screenAttribs array */
+       i = 0;
+       screenAttribs[i++] = EGL_WIDTH;
+       screenAttribs[i++] = width;
+       screenAttribs[i++] = EGL_HEIGHT;
+       screenAttribs[i++] = height;
+       screenAttribs[i++] = EGL_NONE;
+
+       screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
+       if (screen_surf == EGL_NO_SURFACE) {
+               printf("eglscreen: Failed to create screen surface\n");
+               return 0;
+       }
+
+       b = eglShowScreenSurfaceMESA(d, screen, screen_surf, mode[chosenMode]);
+       if (!b) {
+               printf("eglscreen: Show surface failed\n");
+               return 0;
+       }
+
+       eglDestroySurface(d, screen_surf);
+       eglTerminate(d);
+
+       return 0;
+}