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/*
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* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: OpenGL utility functions and definitions
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*
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*/
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#ifndef __M3G_GL_H__
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#define __M3G_GL_H__
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/*!
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* \internal
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* \file
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* \brief OpenGL utility functions and definitions
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*/
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#include "M3G/m3g_core.h"
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#include "m3g_defs.h"
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#if !(defined(M3G_NGL_CONTEXT_API) || defined(M3G_NGL_TEXTURE_API))
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# include <GLES/gl.h>
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# include <EGL/egl.h>
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#else
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/*@notfunction@*/
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# define NGL_PREFIX(func) gl ## func
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/*@notfunction@*/
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# define NGLI_PREFIX(func) ngl ## func
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/*@notfunction@*/
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# define NGLU_PREFIX(func) nglu ## func
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# include "ngl.h"
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*----------------------------------------------------------------------
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* Handy macros
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*--------------------------------------------------------------------*/
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#if defined(M3G_DEBUG_ASSERTS)
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static M3G_INLINE void m3gAssertGL(const char *filename, int line)
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{
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GLint err = glGetError();
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if (err != GL_NO_ERROR) {
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M3G_LOG3(M3G_LOG_FATAL_ERRORS, "GL error 0x%X (%s: %d)\n",
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err, filename, line);
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M3G_ASSERT(M3G_FALSE);
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}
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}
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# define M3G_ASSERT_GL m3gAssertGL(__FILE__, __LINE__)
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#else
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# define M3G_ASSERT_GL
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#endif
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#define M3G_GLTYPE(m3gType) ((m3gType) + 0x1400)
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#define M3G_M3GTYPE(glType) ((glType) - 0x1400)
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/*----------------------------------------------------------------------
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* Internal functions
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*--------------------------------------------------------------------*/
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static GLenum m3gGetGLFormat(M3GPixelFormat format); /* m3g_image.inl */
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static void m3gGLColor(M3Guint argb, GLfixed *dst); /* m3g_image.c */
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#if !defined(M3G_NGL_CONTEXT_API)
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static void m3gInitializeEGL(void); /* m3g_rendercontext.inl */
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static void m3gTerminateEGL(void); /* m3g_rendercontext.inl */
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#endif
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/*----------------------------------------------------------------------
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* Native platform abstraction layer
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*--------------------------------------------------------------------*/
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#if !defined(M3G_NGL_CONTEXT_API)
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M3Gbool m3gglLockNativeBitmap(M3GNativeBitmap bitmap,
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M3Gubyte **ptr,
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M3Gsizei *stride);
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void m3gglReleaseNativeBitmap(M3GNativeBitmap bitmap);
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M3Gbool m3gglGetNativeBitmapParams(M3GNativeBitmap bitmap,
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M3GPixelFormat *format,
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M3Gint *width, M3Gint *height, M3Gint *pixels);
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M3Gbool m3gglGetNativeWindowParams(M3GNativeWindow wnd,
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M3GPixelFormat *format,
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M3Gint *width, M3Gint *height);
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#endif /* M3G_NGL_CONTEXT_API */
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#if defined(__cplusplus)
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} /* extern "C" */
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#endif
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#endif /*__M3G_GL_H__*/
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