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remove magic numbers
This commit is contained in:
Sam Cake
parent
06d353ad30
commit
40ee78195e
1 changed files with 83 additions and 42 deletions
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@ -500,6 +500,40 @@ void NetworkTexture::loadContent(const QByteArray& content) {
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QThreadPool::globalInstance()->start(new ImageReader(_self, NULL, _url, content));
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}
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class CubeLayout {
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public:
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int _widthRatio = 1;
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int _heightRatio = 1;
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class Face {
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public:
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int _x = 0;
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int _y = 0;
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bool _horizontalMirror = false;
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bool _verticalMirror = false;
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Face() {}
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Face(int x, int y, bool horizontalMirror, bool verticalMirror) : _x(x), _y(y), _horizontalMirror(horizontalMirror), _verticalMirror(verticalMirror) {}
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};
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Face _faceXPos;
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Face _faceXNeg;
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Face _faceYPos;
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Face _faceYNeg;
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Face _faceZPos;
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Face _faceZNeg;
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CubeLayout(int wr, int hr, Face fXP, Face fXN, Face fYP, Face fYN, Face fZP, Face fZN) :
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_widthRatio(wr),
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_heightRatio(hr),
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_faceXPos(fXP),
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_faceXNeg(fXN),
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_faceYPos(fYP),
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_faceYNeg(fYN),
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_faceZPos(fZP),
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_faceZNeg(fZN) {}
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};
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void NetworkTexture::setImage(const QImage& image, bool translucent, const QColor& averageColor, int originalWidth,
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int originalHeight) {
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_translucent = translucent;
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@ -525,11 +559,8 @@ void NetworkTexture::setImage(const QImage& image, bool translucent, const QColo
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}
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if (_type == CUBE_TEXTURE) {
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std::vector<QImage> faces;
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if (_height == (6 * _width)) {
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int faceWidth = _width;
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const CubeLayout CUBEMAP_LAYOUTS[] = {
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// Here is the expected layout for the faces in an image with the 1/6 aspect ratio:
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//
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// WIDTH
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@ -561,16 +592,14 @@ void NetworkTexture::setImage(const QImage& image, bool translucent, const QColo
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// V +------+
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//
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// FaceWidth = width = height / 6
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faces.push_back(image.copy(QRect(0, 0 * faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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faces.push_back(image.copy(QRect(0, 1 * faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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faces.push_back(image.copy(QRect(0, 2 * faceWidth, faceWidth, faceWidth)).mirrored(false, true));
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faces.push_back(image.copy(QRect(0, 3 * faceWidth, faceWidth, faceWidth)).mirrored(false, true));
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faces.push_back(image.copy(QRect(0, 4 * faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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faces.push_back(image.copy(QRect(0, 5 * faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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} else if ((_height / 3) == (_width / 4)) {
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int faceWidth = _height / 3;
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{ 1, 6,
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{0, 0, true, false},
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{0, 1, true, false},
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{0, 2, false, true},
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{0, 3, false, true},
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{0, 4, true, false},
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{0, 5, true, false}
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},
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// Here is the expected layout for the faces in an image with the 3/4 aspect ratio:
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//
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@ -590,22 +619,14 @@ void NetworkTexture::setImage(const QImage& image, bool translucent, const QColo
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// V +------+------+------+------+
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//
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// FaceWidth = width / 4 = height / 3
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// Right = +X
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faces.push_back(image.copy(QRect(2 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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// Left = -X
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faces.push_back(image.copy(QRect(0 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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// Top = +Y
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faces.push_back(image.copy(QRect(1 * faceWidth, 0, faceWidth, faceWidth)).mirrored(false, true));
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// Bottom = -Y
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faces.push_back(image.copy(QRect(1 * faceWidth, 2 * faceWidth, faceWidth, faceWidth)).mirrored(false, true));
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// Back = +Z
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faces.push_back(image.copy(QRect(3 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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// Front = -Z
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faces.push_back(image.copy(QRect(1 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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} else if ((_height / 4) == (_width / 3)) {
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int faceWidth = _height / 4;
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{ 4, 3,
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{2, 1, true, false},
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{0, 1, true, false},
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{1, 0, false, true},
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{1, 2, false, true},
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{3, 0, true, false},
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{1, 0, true, false}
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},
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// Here is the expected layout for the faces in an image with the 4/3 aspect ratio:
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//
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@ -629,21 +650,41 @@ void NetworkTexture::setImage(const QImage& image, bool translucent, const QColo
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// V +------+------+------+
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//
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// FaceWidth = width / 3 = height / 4
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{ 4, 3,
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{2, 1, true, false},
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{0, 1, true, false},
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{1, 0, false, true},
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{1, 2, false, true},
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{1, 3, false, true},
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{1, 1, true, false}
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}
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};
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const int NUM_CUBEMAP_LAYOUTS = sizeof(CUBEMAP_LAYOUTS) / sizeof(CubeLayout);
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// Right = +X
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faces.push_back(image.copy(QRect(2 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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// Left = -X
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faces.push_back(image.copy(QRect(0 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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// Top = +Y
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faces.push_back(image.copy(QRect(1 * faceWidth, 0, faceWidth, faceWidth)).mirrored(false, true));
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// Bottom = -Y
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faces.push_back(image.copy(QRect(1 * faceWidth, 2 * faceWidth, faceWidth, faceWidth)).mirrored(false, true));
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// Back = +Z
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faces.push_back(image.copy(QRect(1 * faceWidth, 3 * faceWidth, faceWidth, faceWidth)).mirrored(false, true));
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// Front = -Z
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faces.push_back(image.copy(QRect(1 * faceWidth, faceWidth, faceWidth, faceWidth)).mirrored(true, false));
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// Find the layout of the cubemap in the 2D image
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int foundLayout = -1;
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for (int i = 0; i < NUM_CUBEMAP_LAYOUTS; i++) {
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if ((image.height() * CUBEMAP_LAYOUTS[i]._widthRatio) == (image.width() * CUBEMAP_LAYOUTS[i]._heightRatio)) {
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foundLayout = i;
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// break;
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}
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}
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std::vector<QImage> faces;
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// If found, go extract the faces as separate images
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if (foundLayout >= 0) {
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auto& layout = CUBEMAP_LAYOUTS[foundLayout];
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int faceWidth = image.width() / layout._widthRatio;
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faces.push_back(image.copy(QRect(layout._faceXPos._x * faceWidth, layout._faceXPos._y * faceWidth, faceWidth, faceWidth)).mirrored(layout._faceXPos._horizontalMirror, layout._faceXPos._verticalMirror));
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faces.push_back(image.copy(QRect(layout._faceXNeg._x * faceWidth, layout._faceXNeg._y * faceWidth, faceWidth, faceWidth)).mirrored(layout._faceXNeg._horizontalMirror, layout._faceXNeg._verticalMirror));
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faces.push_back(image.copy(QRect(layout._faceYPos._x * faceWidth, layout._faceYPos._y * faceWidth, faceWidth, faceWidth)).mirrored(layout._faceYPos._horizontalMirror, layout._faceYPos._verticalMirror));
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faces.push_back(image.copy(QRect(layout._faceYNeg._x * faceWidth, layout._faceYNeg._y * faceWidth, faceWidth, faceWidth)).mirrored(layout._faceYNeg._horizontalMirror, layout._faceYNeg._verticalMirror));
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faces.push_back(image.copy(QRect(layout._faceZPos._x * faceWidth, layout._faceZPos._y * faceWidth, faceWidth, faceWidth)).mirrored(layout._faceZPos._horizontalMirror, layout._faceZPos._verticalMirror));
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faces.push_back(image.copy(QRect(layout._faceZNeg._x * faceWidth, layout._faceZNeg._y * faceWidth, faceWidth, faceWidth)).mirrored(layout._faceZNeg._horizontalMirror, layout._faceZNeg._verticalMirror));
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}
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// If the 6 faces have been created go on and define the true Texture
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if (faces.size() == gpu::Texture::NUM_FACES_PER_TYPE[gpu::Texture::TEX_CUBE]) {
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_gpuTexture = gpu::TexturePointer(gpu::Texture::createCube(formatGPU, faces[0].width(), gpu::Sampler(gpu::Sampler::FILTER_MIN_MAG_MIP_LINEAR, gpu::Sampler::WRAP_CLAMP)));
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_gpuTexture->autoGenerateMips(-1);
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