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@ -2128,27 +2128,27 @@ void ImageRotate(Image *image, int degrees) |
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if (image->format >= PIXELFORMAT_COMPRESSED_DXT1_RGB) TRACELOG(LOG_WARNING, "Image manipulation not supported for compressed formats"); |
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else |
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{ |
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float rad = degrees * PI / 180.0f; |
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float rad = degrees*PI/180.0f; |
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float sinRadius = sin(rad); |
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float cosRadius = cos(rad); |
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int width = abs(image->width * cosRadius) + abs(image->height * sinRadius); |
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int height = abs(image->height * cosRadius) + abs(image->width * sinRadius); |
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int width = fabsf(image->width*cosRadius) + fabsf(image->height*sinRadius); |
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int height = fabsf(image->height*cosRadius) + fabsf(image->width*sinRadius); |
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int bytesPerPixel = GetPixelDataSize(1, 1, image->format); |
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unsigned char *rotatedData = (unsigned char *)RL_CALLOC(width * height, bytesPerPixel); |
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unsigned char *rotatedData = (unsigned char *)RL_CALLOC(width*height, bytesPerPixel); |
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for (int y = 0; y < height; y++) |
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{ |
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for (int x = 0; x < width; x++) |
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{ |
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float oldX = ((x - width / 2.0f) * cosRadius + (y - height / 2.0f) * sinRadius) + image->width / 2.0f; |
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float oldY = ((y - height / 2.0f) * cosRadius - (x - width / 2.0f) * sinRadius) + image->height / 2.0f; |
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float oldX = ((x - width/2.0f)*cosRadius + (y - height/2.0f)*sinRadius) + image->width/2.0f; |
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float oldY = ((y - height/2.0f)*cosRadius - (x - width/2.0f)*sinRadius) + image->height/2.0f; |
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if (oldX >= 0 && oldX < image->width && oldY >= 0 && oldY < image->height) |
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if (p">(oldX >= 0) && p">(oldX < image->width) && p">(oldY >= 0) && p">(oldY < image->height)) |
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{ |
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int x1 = (int)floor(oldX); |
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int y1 = (int)floor(oldY); |
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int x1 = (int)floorf(oldX); |
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int y1 = (int)floorf(oldY); |
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int x2 = MIN(x1 + 1, image->width - 1); |
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int y2 = MIN(y1 + 1, image->height - 1); |
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@ -2157,14 +2157,14 @@ void ImageRotate(Image *image, int degrees) |
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for (int i = 0; i < bytesPerPixel; i++) |
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{ |
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float f1 = ((unsigned char *)image->data)[(y1 * image->width + x1) * bytesPerPixel + i]; |
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float f2 = ((unsigned char *)image->data)[(y1 * image->width + x2) * bytesPerPixel + i]; |
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float f3 = ((unsigned char *)image->data)[(y2 * image->width + x1) * bytesPerPixel + i]; |
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float f4 = ((unsigned char *)image->data)[(y2 * image->width + x2) * bytesPerPixel + i]; |
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float f1 = ((unsigned char *)image->data)[(y1*image->width + x1)*bytesPerPixel + i]; |
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float f2 = ((unsigned char *)image->data)[(y1*image->width + x2)*bytesPerPixel + i]; |
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float f3 = ((unsigned char *)image->data)[(y2*image->width + x1)*bytesPerPixel + i]; |
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float f4 = ((unsigned char *)image->data)[(y2*image->width + x2)*bytesPerPixel + i]; |
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float val = f1 * (1 - px) * (1 - py) + f2 * px * (1 - py) + f3 * (1 - px) * py + f4 * px * py; |
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float val = f1*(1 - px)*(1 - py) + f2*px*(1 - py) + f3*(1 - px)*py + f4*px*py; |
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rotatedData[(y * width + x) * bytesPerPixel + i] = (unsigned char)val; |
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rotatedData[(y*width + x)*bytesPerPixel + i] = (unsigned char)val; |
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} |
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} |
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} |
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