/opengles/src/ContextMaterial.cpp
C++ | 148 lines | 79 code | 29 blank | 40 comment | 14 complexity | 86caac3435153b42c5c91468e4138cde MD5 | raw file
1// ========================================================================== 2// 3// ContextMaterial.cpp Rendering Context Class for 3D Rendering Library 4// 5// Material related settings 6// 7// -------------------------------------------------------------------------- 8// 9// 08-02-2003 Hans-Martin Will initial version 10// 11// -------------------------------------------------------------------------- 12// 13// Copyright (c) 2004, Hans-Martin Will. All rights reserved. 14// 15// Redistribution and use in source and binary forms, with or without 16// modification, are permitted provided that the following conditions are 17// met: 18// 19// * Redistributions of source code must retain the above copyright 20// notice, this list of conditions and the following disclaimer. 21// * Redistributions in binary form must reproduce the above copyright 22// notice, this list of conditions and the following disclaimer in the 23// documentation and/or other materials provided with the distribution. 24// 25// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 26// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 29// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 30// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 35// THE POSSIBILITY OF SUCH DAMAGE. 36// 37// ========================================================================== 38 39 40#include "stdafx.h" 41#include "Context.h" 42#include "RasterizerState.h" 43#include "Utils.h" 44 45using namespace EGL; 46 47 48// ========================================================================== 49// Material Functions on Context 50// ========================================================================== 51 52void Context :: Materialx(GLenum face, GLenum pname, GLfixed param) { 53 54 if (face != GL_FRONT_AND_BACK) { 55 RecordError(GL_INVALID_ENUM); 56 return; 57 } 58 59 Material * material = &m_FrontMaterial; 60 61 switch (pname) { 62 case GL_SHININESS: 63 if (param < 0 || param > EGL_FixedFromInt(128)) { 64 RecordError(GL_INVALID_VALUE); 65 } else { 66 material->SetSpecularExponent(param); 67 } 68 69 break; 70 71 default: 72 RecordError(GL_INVALID_ENUM); 73 return; 74 } 75} 76 77void Context :: Materialxv(GLenum face, GLenum pname, const GLfixed *params) { 78 79 if (face != GL_FRONT_AND_BACK) { 80 RecordError(GL_INVALID_ENUM); 81 return; 82 } 83 84 Material * material = &m_FrontMaterial; 85 86 switch (pname) { 87 case GL_AMBIENT: 88 material->SetAmbientColor(FractionalColor::Clamp(params)); 89 break; 90 91 case GL_DIFFUSE: 92 material->SetDiffuseColor(FractionalColor::Clamp(params)); 93 break; 94 95 case GL_AMBIENT_AND_DIFFUSE: 96 material->SetAmbientColor(FractionalColor::Clamp(params)); 97 material->SetDiffuseColor(FractionalColor::Clamp(params)); 98 break; 99 100 case GL_SPECULAR: 101 material->SetSpecularColor(FractionalColor::Clamp(params)); 102 break; 103 104 case GL_EMISSION: 105 material->SetEmissiveColor(FractionalColor::Clamp(params)); 106 break; 107 108 default: 109 Materialx(face, pname, *params); 110 break; 111 } 112} 113 114bool Context :: GetMaterialxv(GLenum face, GLenum pname, GLfixed *params) { 115 if (face != GL_FRONT && face != GL_BACK) { 116 RecordError(GL_INVALID_ENUM); 117 return false; 118 } 119 120 switch (pname) { 121 case GL_AMBIENT: 122 CopyColor(m_FrontMaterial.GetAmbientColor(), params); 123 break; 124 125 case GL_DIFFUSE: 126 CopyColor(m_FrontMaterial.GetDiffuseColor(), params); 127 break; 128 129 case GL_SPECULAR: 130 CopyColor(m_FrontMaterial.GetSpecularColor(), params); 131 break; 132 133 case GL_EMISSION: 134 CopyColor(m_FrontMaterial.GetEmissiveColor(), params); 135 break; 136 137 case GL_SHININESS: 138 params[0] = m_FrontMaterial.GetSpecularExponent(); 139 break; 140 141 default: 142 RecordError(GL_INVALID_ENUM); 143 return false; 144 } 145 146 return true; 147} 148