mirror of https://github.com/minetest/irrlicht.git
132 lines
2.8 KiB
C++
132 lines
2.8 KiB
C++
// Copyright (C) 2015 Patryk Nadrowski
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in Irrlicht.h
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#include "COpenGLCacheHandler.h"
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#ifdef _IRR_COMPILE_WITH_OPENGL_
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#include "COpenGLDriver.h"
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namespace irr
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{
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namespace video
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{
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/* COpenGLCacheHandler */
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COpenGLCacheHandler::COpenGLCacheHandler(COpenGLDriver* driver) :
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COpenGLCoreCacheHandler<COpenGLDriver, COpenGLTexture>(driver), AlphaMode(GL_ALWAYS), AlphaRef(0.f), AlphaTest(false),
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MatrixMode(GL_MODELVIEW), ClientActiveTexture(GL_TEXTURE0), ClientStateVertex(false),
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ClientStateNormal(false), ClientStateColor(false), ClientStateTexCoord0(false)
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{
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// Initial OpenGL values from specification.
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glAlphaFunc(AlphaMode, AlphaRef);
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glDisable(GL_ALPHA_TEST);
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glMatrixMode(MatrixMode);
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Driver->irrGlClientActiveTexture(ClientActiveTexture);
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glDisableClientState(GL_VERTEX_ARRAY);
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glDisableClientState(GL_NORMAL_ARRAY);
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glDisableClientState(GL_COLOR_ARRAY);
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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}
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COpenGLCacheHandler::~COpenGLCacheHandler()
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{
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}
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void COpenGLCacheHandler::setAlphaFunc(GLenum mode, GLclampf ref)
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{
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if (AlphaMode != mode || AlphaRef != ref)
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{
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glAlphaFunc(mode, ref);
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AlphaMode = mode;
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AlphaRef = ref;
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}
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}
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void COpenGLCacheHandler::setAlphaTest(bool enable)
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{
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if (AlphaTest != enable)
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{
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if (enable)
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glEnable(GL_ALPHA_TEST);
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else
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glDisable(GL_ALPHA_TEST);
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AlphaTest = enable;
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}
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}
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void COpenGLCacheHandler::setClientState(bool vertex, bool normal, bool color, bool texCoord0)
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{
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if (ClientStateVertex != vertex)
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{
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if (vertex)
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glEnableClientState(GL_VERTEX_ARRAY);
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else
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glDisableClientState(GL_VERTEX_ARRAY);
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ClientStateVertex = vertex;
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}
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if (ClientStateNormal != normal)
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{
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if (normal)
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glEnableClientState(GL_NORMAL_ARRAY);
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else
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glDisableClientState(GL_NORMAL_ARRAY);
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ClientStateNormal = normal;
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}
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if (ClientStateColor != color)
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{
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if (color)
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glEnableClientState(GL_COLOR_ARRAY);
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else
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glDisableClientState(GL_COLOR_ARRAY);
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ClientStateColor = color;
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}
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if (ClientStateTexCoord0 != texCoord0)
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{
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setClientActiveTexture(GL_TEXTURE0_ARB);
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if (texCoord0)
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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else
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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ClientStateTexCoord0 = texCoord0;
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}
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}
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void COpenGLCacheHandler::setMatrixMode(GLenum mode)
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{
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if (MatrixMode != mode)
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{
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glMatrixMode(mode);
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MatrixMode = mode;
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}
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}
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void COpenGLCacheHandler::setClientActiveTexture(GLenum texture)
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{
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if (ClientActiveTexture != texture)
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{
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Driver->irrGlClientActiveTexture(texture);
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ClientActiveTexture = texture;
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}
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}
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} // end namespace
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} // end namespace
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#endif // _IRR_COMPILE_WITH_OPENGL_
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