108 lines
3.7 KiB
Java
108 lines
3.7 KiB
Java
/*
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* Copyright (c) 2002-2008 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.opengl;
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import java.nio.Buffer;
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import java.util.Arrays;
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import static org.lwjgl.opengl.GL11.*;
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import static org.lwjgl.opengl.GL13.*;
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import static org.lwjgl.opengl.GL20.*;
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class BaseReferences {
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int elementArrayBuffer;
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int arrayBuffer;
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final Buffer[] glVertexAttribPointer_buffer;
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final Buffer[] glTexCoordPointer_buffer;
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int glClientActiveTexture;
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int vertexArrayObject;
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int pixelPackBuffer;
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int pixelUnpackBuffer;
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int indirectBuffer;
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BaseReferences(ContextCapabilities caps) {
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int max_vertex_attribs;
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if ( caps.OpenGL20 || caps.GL_ARB_vertex_shader )
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max_vertex_attribs = glGetInteger(GL_MAX_VERTEX_ATTRIBS);
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else
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max_vertex_attribs = 0;
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glVertexAttribPointer_buffer = new Buffer[max_vertex_attribs];
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int max_texture_units;
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if ( caps.OpenGL20 )
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max_texture_units = glGetInteger(GL_MAX_TEXTURE_IMAGE_UNITS);
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else if ( caps.OpenGL13 || caps.GL_ARB_multitexture )
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max_texture_units = glGetInteger(GL_MAX_TEXTURE_UNITS);
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else
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max_texture_units = 1;
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glTexCoordPointer_buffer = new Buffer[max_texture_units];
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}
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void clear() {
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this.elementArrayBuffer = 0;
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this.arrayBuffer = 0;
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this.glClientActiveTexture = 0;
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Arrays.fill(glVertexAttribPointer_buffer, null);
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Arrays.fill(glTexCoordPointer_buffer, null);
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this.vertexArrayObject = 0;
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this.pixelPackBuffer = 0;
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this.pixelUnpackBuffer = 0;
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this.indirectBuffer = 0;
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}
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void copy(BaseReferences references, int mask) {
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if ( (mask & GL_CLIENT_VERTEX_ARRAY_BIT) != 0 ) {
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this.elementArrayBuffer = references.elementArrayBuffer;
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this.arrayBuffer = references.arrayBuffer;
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this.glClientActiveTexture = references.glClientActiveTexture;
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System.arraycopy(references.glVertexAttribPointer_buffer, 0, glVertexAttribPointer_buffer, 0, glVertexAttribPointer_buffer.length);
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System.arraycopy(references.glTexCoordPointer_buffer, 0, glTexCoordPointer_buffer, 0, glTexCoordPointer_buffer.length);
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this.vertexArrayObject = references.vertexArrayObject;
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this.indirectBuffer = references.indirectBuffer;
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}
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if ( (mask & GL_CLIENT_PIXEL_STORE_BIT) != 0 ) {
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this.pixelPackBuffer = references.pixelPackBuffer;
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this.pixelUnpackBuffer = references.pixelUnpackBuffer;
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}
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}
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}
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