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LibSoftGPU: Use bitwise and instead of modulus operator for POT textures
Where possible the sampler will wrap texture coordinates using a bitwise and instead of a modulus. This speeds up the calculation quite a bit.
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3 changed files with 46 additions and 6 deletions
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@ -21,6 +21,15 @@ Image::Image(ImageFormat format, unsigned width, unsigned height, unsigned depth
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VERIFY(levels > 0);
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VERIFY(layers > 0);
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if ((width & (width - 1)) == 0)
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m_width_is_power_of_two = true;
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if ((height & (height - 1)) == 0)
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m_height_is_power_of_two = true;
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if ((depth & (depth - 1)) == 0)
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m_depth_is_power_of_two = true;
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m_mipmap_sizes.append({ width, height, depth });
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m_mipmap_offsets.append(0);
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