44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*
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Copyright (c) 2013 yvt
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This file is part of OpenSpades.
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OpenSpades is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenSpades is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenSpades. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <cstdint>
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#include "GLProgramAttribute.h"
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#include "GLQuadRenderer.h"
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namespace spades {
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namespace draw {
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GLQuadRenderer::GLQuadRenderer(IGLDevice *device) : device(device) {}
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GLQuadRenderer::~GLQuadRenderer() {}
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void GLQuadRenderer::SetCoordAttributeIndex(IGLDevice::UInteger idx) { attrIndex = idx; }
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void GLQuadRenderer::Draw() {
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static const uint8_t vertices[][4] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
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device->EnableVertexAttribArray(attrIndex, true);
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device->VertexAttribPointer(attrIndex, 2, IGLDevice::UnsignedByte, false, 4, vertices);
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device->DrawArrays(IGLDevice::TriangleFan, 0, 4);
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device->EnableVertexAttribArray(attrIndex, false);
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}
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}
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}
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