1 files changed, 167 insertions, 0 deletions
diff --git a/android/opengles.c b/android/opengles.c
new file mode 100644
index 0000000..5d0c152
--- /dev/null
+++ b/android/opengles.c
@@ -0,0 +1,167 @@
+/* Copyright (C) 2011 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+
+#include "config-host.h"
+#include "android/opengles.h"
+#include <android/utils/debug.h>
+#include <android/utils/path.h>
+#include <android/utils/bufprint.h>
+#include <android/utils/dll.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define D(...)  VERBOSE_PRINT(init,__VA_ARGS__)
+#define DD(...) VERBOSE_PRINT(gles,__VA_ARGS__)
+
+/* Name of the GLES rendering library we're going to use */
+#define RENDERER_LIB_NAME  "libOpenglRender"
+
+/* These definitions *must* match those under:
+ * development/tools/emulator/opengl/host/include/libOpenglRender/render_api.h
+ */
+#define DYNLINK_FUNCTIONS  \
+  DYNLINK_FUNC(int,initLibrary,(void),(),return) \
+  DYNLINK_FUNC(int,initOpenGLRenderer,(int width, int height, int port),(width,height,port),return) \
+  DYNLINK_FUNC(int,createOpenGLSubwindow,(void* window, int x, int y, int width, int height, float zRot),(window,x,y,width,height,zRot),return)\
+  DYNLINK_FUNC(int,destroyOpenGLSubwindow,(void),(),return)\
+  DYNLINK_FUNC(void,repaintOpenGLDisplay,(void),(),)\
+  DYNLINK_FUNC(void,stopOpenGLRenderer,(void),(),)
+
+
+#ifndef CONFIG_STANDALONE_UI
+/* Defined in android/hw-pipe-net.c */
+extern int android_init_opengles_pipes(void);
+#endif
+
+static ADynamicLibrary*  rendererLib;
+
+/* Define the pointers and the wrapper functions to call them */
+#define DYNLINK_FUNC(result,name,sig,params,ret) \
+    static result (*_ptr_##name) sig; \
+    static result name sig { \
+        ret (*_ptr_##name) params ; \
+    }
+
+DYNLINK_FUNCTIONS
+
+#undef DYNLINK_FUNC
+
+static int
+initOpenglesEmulationFuncs(ADynamicLibrary* rendererLib)
+{
+    void*  symbol;
+    char*  error;
+#define DYNLINK_FUNC(result,name,sig,params,ret) \
+    symbol = adynamicLibrary_findSymbol( rendererLib, #name, &error ); \
+    if (symbol != NULL) { \
+        _ptr_##name = symbol; \
+    } else { \
+        derror("GLES emulation: Could not find required symbol (%s): %s", #name, error); \
+        free(error); \
+        return -1; \
+    }
+DYNLINK_FUNCTIONS
+#undef DYNLINK_FUNC
+    return 0;
+}
+
+int
+android_initOpenglesEmulation(void)
+{
+    char* error = NULL;
+
+    if (rendererLib != NULL)
+        return 0;
+
+    D("Initializing hardware OpenGLES emulation support");
+
+    rendererLib = adynamicLibrary_open(RENDERER_LIB_NAME, &error);
+    if (rendererLib == NULL) {
+        derror("Could not load OpenGLES emulation library: %s", error);
+        return -1;
+    }
+
+#ifndef CONFIG_STANDALONE_UI
+    android_init_opengles_pipes();
+#endif
+
+
+    /* Resolve the functions */
+    if (initOpenglesEmulationFuncs(rendererLib) < 0) {
+        derror("OpenGLES emulation library mismatch. Be sure to use the correct version!");
+        goto BAD_EXIT;
+    }
+
+    if (!initLibrary()) {
+        derror("OpenGLES initialization failed!");
+        goto BAD_EXIT;
+    }
+
+    return 0;
+
+BAD_EXIT:
+    derror("OpenGLES emulation library could not be initialized!");
+    adynamicLibrary_close(rendererLib);
+    rendererLib = NULL;
+    return -1;
+}
+
+int
+android_startOpenglesRenderer(int width, int height)
+{
+    if (!rendererLib) {
+        D("Can't start OpenGLES renderer without support libraries");
+        return -1;
+    }
+
+    if (initOpenGLRenderer(width, height,ANDROID_OPENGLES_BASE_PORT) != 0) {
+        D("Can't start OpenGLES renderer?");
+        return -1;
+    }
+    return 0;
+}
+
+void
+android_stopOpenglesRenderer(void)
+{
+    if (rendererLib) {
+        stopOpenGLRenderer();
+    }
+}
+
+int
+android_showOpenglesWindow(void* window, int x, int y, int width, int height, float rotation)
+{
+    if (rendererLib) {
+        return createOpenGLSubwindow(window, x, y, width, height, rotation);
+    } else {
+        return -1;
+    }
+}
+
+int
+android_hideOpenglesWindow(void)
+{
+    if (rendererLib) {
+        return destroyOpenGLSubwindow();
+    } else {
+        return -1;
+    }
+}
+
+void
+android_redrawOpenglesWindow(void)
+{
+    if (rendererLib) {
+        repaintOpenGLDisplay();
+    }
+}