author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:47:50 +0200 | |
changeset 0 | 5d03bc08d59c |
permissions | -rw-r--r-- |
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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: PolygonMode implementation |
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* |
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*/ |
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|
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|
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/*! |
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* \internal |
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* \file |
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* \brief PolygonMode implementation |
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*/ |
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|
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#ifndef M3G_CORE_INCLUDE |
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# error included by m3g_core.c; do not compile separately. |
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#endif |
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|
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/* |
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* Uncomment this line to switch tracing on for this file's functions |
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*/ |
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/* #define M3G_LOCAL_TRACEF_ON */ |
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|
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#include "m3g_polygonmode.h" |
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|
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/*---------------------------------------------------------------------- |
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* Internal functions |
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*--------------------------------------------------------------------*/ |
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/*! |
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* \internal |
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* \brief Applies default polygon mode to OpenGL. |
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*/ |
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static void m3gApplyDefaultPolygonMode() |
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{ |
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/* cull = BACK */ |
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glCullFace(GL_BACK); |
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glEnable(GL_CULL_FACE); |
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/* shading = M3G_SHADE_SMOOTH */ |
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glShadeModel(GL_SMOOTH); |
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/* winding = M3G_WINDING_CCW */ |
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glFrontFace(GL_CCW); |
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/* perspective correction = false */ |
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glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST); |
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/* lighting = ONE_SIDED */ |
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glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, GL_FALSE); |
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} |
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/*! |
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* \internal |
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* \brief Applies polygon mode to OpenGL. |
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* |
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* \param polygonMode PolygonMode object |
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*/ |
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static void m3gApplyPolygonMode(PolygonMode *polygonMode) |
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{ |
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if (polygonMode != NULL) { |
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if (polygonMode->cullingMode == M3G_CULL_NONE) { |
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glDisable(GL_CULL_FACE); |
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} |
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else { |
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if (polygonMode->cullingMode == M3G_CULL_BACK) { |
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glCullFace(GL_BACK); |
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} |
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else { |
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glCullFace(GL_FRONT); |
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} |
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glEnable(GL_CULL_FACE); |
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} |
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|
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if (m3gGetTwoSidedLightingWorkaround(M3G_INTERFACE(polygonMode))) { |
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glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, GL_FALSE); |
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} |
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else { |
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glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, polygonMode->enableTwoSidedLighting); |
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} |
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if (polygonMode->shadingMode == M3G_SHADE_FLAT) { |
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glShadeModel(GL_FLAT); |
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} |
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else { |
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glShadeModel(GL_SMOOTH); |
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} |
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|
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if (polygonMode->windingMode == M3G_WINDING_CW) { |
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glFrontFace(GL_CW); |
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} |
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else { |
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glFrontFace(GL_CCW); |
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} |
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105 |
|
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if (polygonMode->enablePerspectiveCorrection == GL_TRUE) { |
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glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); |
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} |
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else { |
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glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST); |
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} |
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} |
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else { |
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m3gApplyDefaultPolygonMode(); |
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} |
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M3G_ASSERT_GL; |
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117 |
|
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} |
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119 |
|
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120 |
/*! |
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* \internal |
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* \brief Overloaded Object3D method |
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* |
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* \param originalObj original PolygonMode object |
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* \param cloneObj pointer to cloned PolygonMode object |
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* \param pairs array for all object-duplicate pairs |
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* \param numPairs number of pairs |
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*/ |
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static M3Gbool m3gPolygonModeDuplicate(const Object *originalObj, |
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Object **cloneObj, |
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Object **pairs, |
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M3Gint *numPairs) |
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{ |
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PolygonMode *original = (PolygonMode *)originalObj; |
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PolygonMode *clone; |
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M3G_ASSERT(*cloneObj == NULL); /* no derived classes */ |
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137 |
|
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/* Create the clone object */ |
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139 |
|
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clone = (PolygonMode *)m3gCreatePolygonMode(originalObj->interface); |
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if (!clone) { |
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return M3G_FALSE; |
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} |
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*cloneObj = (Object *)clone; |
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145 |
|
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/* Duplicate base class data */ |
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147 |
|
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if (!m3gObjectDuplicate(originalObj, cloneObj, pairs, numPairs)) { |
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return M3G_FALSE; |
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} |
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151 |
|
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/* Duplicate our own data */ |
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153 |
|
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clone->enableLocalCameraLighting = original->enableLocalCameraLighting; |
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clone->enablePerspectiveCorrection = original->enablePerspectiveCorrection; |
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clone->cullingMode = original->cullingMode; |
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clone->windingMode = original->windingMode; |
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clone->shadingMode = original->shadingMode; |
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clone->enableTwoSidedLighting = original->enableTwoSidedLighting; |
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160 |
|
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return M3G_TRUE; |
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} |
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163 |
|
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/*---------------------------------------------------------------------- |
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* Virtual function table |
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*--------------------------------------------------------------------*/ |
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167 |
|
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static const ObjectVFTable m3gvf_PolygonMode = { |
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m3gObjectApplyAnimation, |
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m3gObjectIsCompatible, |
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m3gObjectUpdateProperty, |
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m3gObjectDoGetReferences, |
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m3gObjectFindID, |
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m3gPolygonModeDuplicate, |
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m3gDestroyObject |
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}; |
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177 |
|
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178 |
|
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/*---------------------------------------------------------------------- |
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* Public API functions |
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*--------------------------------------------------------------------*/ |
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|
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/*! |
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* \brief Creates a new PolygonMode object. |
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* |
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* \param interface M3G interface object |
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* \retval PolygonMode new PolygonMode object |
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* \retval NULL PolygonMode creating failed |
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*/ |
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M3G_API M3GPolygonMode m3gCreatePolygonMode(M3GInterface interface) |
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191 |
{ |
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Interface *m3g = (Interface *) interface; |
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M3G_VALIDATE_INTERFACE(m3g); |
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194 |
|
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{ |
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PolygonMode *polygonMode = m3gAllocZ(m3g, sizeof(PolygonMode)); |
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197 |
|
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if (polygonMode != NULL) { |
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m3gInitObject(&polygonMode->object, m3g, M3G_CLASS_POLYGON_MODE); |
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polygonMode->enableLocalCameraLighting = GL_FALSE; |
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polygonMode->enablePerspectiveCorrection = GL_FALSE; |
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polygonMode->cullingMode = M3G_CULL_BACK; |
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polygonMode->windingMode = M3G_WINDING_CCW; |
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polygonMode->shadingMode = M3G_SHADE_SMOOTH; |
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polygonMode->enableTwoSidedLighting = GL_FALSE; |
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} |
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207 |
|
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return (M3GPolygonMode)polygonMode; |
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} |
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} |
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|
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/*! |
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* \brief Set local camera lightning. |
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* |
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* \param handle PolygonMode object |
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* \param enable enable flag |
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*/ |
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M3G_API void m3gSetLocalCameraLightingEnable(M3GPolygonMode handle, |
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M3Gbool enable) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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polygonMode->enableLocalCameraLighting = (GLboolean) enable; |
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} |
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|
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/*! |
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* \brief Set perspective correction. |
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* |
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* \param handle PolygonMode object |
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* \param enable enable flag |
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*/ |
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void m3gSetPerspectiveCorrectionEnable(M3GPolygonMode handle, M3Gbool enable) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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polygonMode->enablePerspectiveCorrection = (GLboolean) enable; |
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} |
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|
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/*! |
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* \brief Set culling mode. |
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* |
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* \param handle PolygonMode object |
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* \param mode culling mode |
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*/ |
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void m3gSetCulling(M3GPolygonMode handle, M3Gint mode) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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|
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switch (mode) { |
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case M3G_CULL_BACK: |
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case M3G_CULL_FRONT: |
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case M3G_CULL_NONE: |
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polygonMode->cullingMode = mode; |
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break; |
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default: |
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m3gRaiseError(M3G_INTERFACE(polygonMode), M3G_INVALID_VALUE); |
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break; |
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} |
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} |
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|
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/*! |
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* \brief Get culling mode. |
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* |
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* \param handle PolygonMode object |
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* \return culling mode |
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*/ |
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M3G_API M3Gint m3gGetCulling(M3GPolygonMode handle) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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return polygonMode->cullingMode; |
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} |
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|
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/*! |
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* \brief Set winding mode. |
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* |
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* \param handle PolygonMode object |
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* \param mode winding mode |
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*/ |
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M3G_API void m3gSetWinding(M3GPolygonMode handle, M3Gint mode) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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|
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if (mode != M3G_WINDING_CCW && mode != M3G_WINDING_CW) { |
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m3gRaiseError(M3G_INTERFACE(polygonMode), M3G_INVALID_VALUE); |
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} |
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else { |
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polygonMode->windingMode = mode; |
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} |
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} |
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|
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/*! |
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* \brief Get winding mode. |
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* |
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* \param handle PolygonMode object |
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* \return winding mode |
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*/ |
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M3G_API M3Gint m3gGetWinding(M3GPolygonMode handle) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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return polygonMode->windingMode; |
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} |
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|
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/*! |
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* \brief Set shading mode. |
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* |
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* \param handle PolygonMode object |
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* \param mode shading mode |
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*/ |
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M3G_API void m3gSetShading(M3GPolygonMode handle, M3Gint mode) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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|
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if (mode != M3G_SHADE_FLAT && mode != M3G_SHADE_SMOOTH) { |
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m3gRaiseError(M3G_INTERFACE(polygonMode), M3G_INVALID_VALUE); |
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} |
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else { |
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polygonMode->shadingMode = mode; |
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} |
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} |
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|
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/*! |
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* \brief Get shading mode. |
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* |
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* \param handle PolygonMode object |
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* \return shading mode |
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*/ |
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M3G_API M3Gint m3gGetShading(M3GPolygonMode handle) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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return polygonMode->shadingMode; |
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} |
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|
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/*! |
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* \brief Set two sided lighting. |
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* |
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* \param handle PolygonMode object |
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* \param enable enable flag |
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*/ |
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M3G_API void m3gSetTwoSidedLightingEnable(M3GPolygonMode handle, |
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M3Gbool enable) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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polygonMode->enableTwoSidedLighting = (GLboolean) enable; |
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} |
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|
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/*! |
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* \brief Get two sided lighting. |
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* |
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* \param handle PolygonMode object |
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* \retval M3G_TRUE enabled |
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* \retval M3G_FALSE disabled |
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*/ |
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M3G_API M3Gbool m3gIsTwoSidedLightingEnabled(M3GPolygonMode handle) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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return (M3Gbool) polygonMode->enableTwoSidedLighting; |
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} |
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|
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/*! |
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* \brief Get local camera lighting. |
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* |
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* \param handle PolygonMode object |
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* \retval M3G_TRUE enabled |
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* \retval M3G_FALSE disabled |
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*/ |
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|
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M3G_API M3Gbool m3gIsLocalCameraLightingEnabled(M3GPolygonMode handle) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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return (M3Gbool) polygonMode->enableLocalCameraLighting; |
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} |
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|
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/*! |
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* \brief Get perspective correction. |
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* |
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* \param handle PolygonMode object |
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* \retval M3G_TRUE enabled |
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* \retval M3G_FALSE disabled |
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*/ |
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M3G_API M3Gbool m3gIsPerspectiveCorrectionEnabled(M3GPolygonMode handle) |
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{ |
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PolygonMode *polygonMode = (PolygonMode*)handle; |
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M3G_VALIDATE_OBJECT(polygonMode); |
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return (M3Gbool) polygonMode->enablePerspectiveCorrection; |
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} |
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|
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/* |
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* Uncomment these lines' opening pair at the begining of the file |
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* if you want to switch tracing on for this file. |
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*/ |
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#ifdef M3G_LOCAL_TRACEF_ON |
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#undef M3G_LOCAL_TRACEF_ON |
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#endif |
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403 |