Add:graphics_opengl:Split up window.c in egl and x11 part

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@4961 ffa7fe5e-494d-0410-b361-a75ebd5db220

1 files changed, 97 insertions, 0 deletions

diff --git a/navit/graphics/opengl/graphics_opengl_egl.c b/navit/graphics/opengl/graphics_opengl_egl.c
new file mode 100644
index 000000000..91cef83be
--- /dev/null
+++ b/navit/graphics/opengl/graphics_opengl_egl.c
@@ -0,0 +1,97 @@
+#include "config.h"
+#ifdef USE_OPENGLES2
+#include <GLES2/gl2.h>
+#include <EGL/egl.h>
+#else
+#include <GLES/gl.h>
+#include <GLES/egl.h>
+#endif
+#include <glib.h>
+#include "graphics_opengl.h"
+#include "debug.h"
+
+struct graphics_opengl_platform {
+	EGLSurface eglwindow;
+	EGLDisplay egldisplay;
+	EGLConfig config[1];
+	EGLContext context;
+};
+
+static EGLint attributeList[] = {
+	EGL_RED_SIZE, 8,
+	EGL_ALPHA_SIZE, 8,
+	EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+#ifdef USE_OPENGLES2
+	EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+#endif
+	EGL_NONE
+};
+
+EGLint aEGLContextAttributes[] = {
+#ifdef USE_OPENGLES2
+	EGL_CONTEXT_CLIENT_VERSION, 2,
+#endif
+	EGL_NONE
+};
+
+static void
+graphics_opengl_egl_destroy(struct graphics_opengl_platform *egl)
+{
+	g_free(egl);
+}
+
+static void
+graphics_opengl_egl_swap_buffers(struct graphics_opengl_platform *egl)
+{
+	eglSwapBuffers(egl->egldisplay, egl->eglwindow);
+}
+
+struct graphics_opengl_platform_methods graphics_opengl_egl_methods = {
+	graphics_opengl_egl_destroy,
+	graphics_opengl_egl_swap_buffers,
+};
+
+
+struct graphics_opengl_platform *
+graphics_opengl_egl_new(void *display, void *window, struct graphics_opengl_platform_methods **methods)
+{
+	struct graphics_opengl_platform *ret=g_new0(struct graphics_opengl_platform,1);
+	EGLint major,minor,nconfig;
+
+	*methods=&graphics_opengl_egl_methods;
+	ret->egldisplay = eglGetDisplay((EGLNativeDisplayType)display);
+	if (!ret->egldisplay) {
+		dbg(0, "can't get display\n");
+		goto error;
+	}
+	if (!eglInitialize(ret->egldisplay, &major, &minor)) {
+		dbg(0, "eglInitialize failed\n");
+		goto error;
+	}
+	dbg(0,"eglInitialize ok with version %d.%d\n",major,minor);
+    	eglBindAPI(EGL_OPENGL_ES_API);
+	if (!eglChooseConfig(ret->egldisplay, attributeList, ret->config, sizeof(ret->config)/sizeof(EGLConfig), &nconfig)) {
+		dbg(0, "eglChooseConfig failed\n");
+		goto error;
+	}
+	if (nconfig != 1) {
+		dbg(0, "unexpected number of configs %d\n",nconfig);
+		goto error;
+	}
+	ret->eglwindow = eglCreateWindowSurface(ret->egldisplay, ret->config[0], (NativeWindowType) window, NULL);
+	if (ret->eglwindow == EGL_NO_SURFACE) {
+		dbg(0, "eglCreateWindowSurface failed");
+		goto error;
+	}
+	ret->context = eglCreateContext(ret->egldisplay, ret->config[0], EGL_NO_CONTEXT, aEGLContextAttributes);
+	if (ret->context == EGL_NO_CONTEXT) {
+		dbg(0, "eglCreateContext failed");
+		goto error;
+	}
+	eglMakeCurrent(ret->egldisplay, ret->eglwindow, ret->eglwindow, ret->context);
+	return ret;
+error:
+	graphics_opengl_egl_destroy(ret);
+	return NULL;
+}
+