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// Copyright 2014 Intel Corporation All Rights Reserved
//
// Intel makes no representations about the suitability of this software for any purpose.
// THIS SOFTWARE IS PROVIDED ""AS IS."" INTEL SPECIFICALLY DISCLAIMS ALL WARRANTIES,
// EXPRESS OR IMPLIED, AND ALL LIABILITY, INCLUDING CONSEQUENTIAL AND OTHER INDIRECT DAMAGES,
// FOR THE USE OF THIS SOFTWARE, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY
// RIGHTS, AND INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// Intel does not assume any responsibility for any errors which may appear in this software
// nor any responsibility to update it.
#pragma once
struct SpriteVertex {
float x;
float y;
float u;
float v;
};
inline SpriteVertex* DrawSprite(float x, float y, float width, float height, float viewportWidth, float viewportHeight, SpriteVertex* outVertex)
{
outVertex[0] = {x , y , 0.0f, 0.0f};
outVertex[1] = {x + width, y , 1.0f, 0.0f};
outVertex[2] = {x + width, y + height, 1.0f, 1.0f};
outVertex[3] = outVertex[0];
outVertex[4] = outVertex[2];
outVertex[5] = {x , y + height, 0.0f, 1.0f};
for (int i = 0; i < 6; ++i) {
outVertex[i].x = (outVertex[i].x / viewportWidth * 2.0f - 1.0f);
outVertex[i].y = -(outVertex[i].y / viewportHeight * 2.0f - 1.0f);
}
outVertex += 6;
return outVertex;
}
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