Update API + example

src/rendering_EGL.c

@@ -0,0 +1,85 @@
+#include "instance.h"
+#include "frame.h"
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include "lvrc_internal.h"
+
+#include "context.inl"
+
+#include <malloc.h>
+
+bool lvrcInitRenderingEGL(struct lvrcInstance * instance, EGLDisplay user_display, EGLContext user_context, EGLSurface user_surface)
+{
+	Instance * internalInstance = (Instance*)instance;
+
+	if (!internalInstance->device)
+	{
+		return false;
+	}
+
+	static const EGLint attribs[] =
+	{
+		EGL_RED_SIZE, 8,
+		EGL_GREEN_SIZE, 8,
+		EGL_BLUE_SIZE, 8,
+		//EGL_ALPHA_SIZE, 8,
+		//EGL_DEPTH_SIZE, 16,
+		EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
+		EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+		EGL_NONE
+	};
+
+	static const EGLint context_attributes[] =
+	{
+		EGL_CONTEXT_CLIENT_VERSION, 2,
+		EGL_NONE
+	};
+
+	//
+	// Get Native Display
+	EGLNativeDisplayType nativeDisplay = internalInstance->device;
+
+	if (!nativeDisplay)
+	{
+		fprintf(stderr, "invalid native display\n");
+		return false;
+	}
+
+	//
+	// Get Native Window
+	EGLNativeWindowType nativeWindow = internalInstance->surface;
+
+	if (!nativeWindow)
+	{
+		fprintf(stderr, "invalid native window\n");
+		return false;
+	}
+
+	EGLDisplay display;
+	EGLSurface surface;
+	EGLContext context;
+
+	bool bContextCreated = create_context(EGL_PLATFORM_GBM_KHR, nativeDisplay, nativeWindow, attribs, context_attributes, NULL, &display, &context, &surface);
+
+	if (!bContextCreated)
+	{
+		fprintf(stderr, "couldn't create compositor context\n");
+		return false;
+	}
+
+	InitFrameResources(internalInstance);
+
+	internalInstance->vr_display = display;
+	internalInstance->vr_context = context;
+	internalInstance->vr_surface = surface;
+
+	internalInstance->user_display = user_display;
+	internalInstance->user_context = user_context;
+	internalInstance->user_surface = user_surface;
+
+	eglMakeCurrent(user_display, user_surface, user_surface, user_context);
+
+	return true;
+}