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GPU/DisplayTransfer: Made the scaling bits a single 2bit value

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Rephrased some comments.
This commit is contained in:
Subv 2015-03-12 13:11:57 -05:00
parent ae0dfcae1d
commit 23b401c3ac
2 changed files with 17 additions and 6 deletions
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9
src/core/hw/gpu.h
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@ -188,6 +188,12 @@ struct Regs {
BitField<16, 16, u32> input_height;
};
enum ScalingMode : u32 {
NoScale = 0, // Doesn't scale the image
ScaleX = 1, // Downscales the image in half in the X axis and applies a box filter
ScaleXY = 2, // Downscales the image in half in both the X and Y axes and applies a box filter
};
union {
u32 flags;
@ -197,8 +203,7 @@ struct Regs {
BitField< 8, 3, PixelFormat> input_format;
BitField<12, 3, PixelFormat> output_format;
BitField<24, 1, u32> scale_x; // Shrinks the image in half horizontally, blending the extra pixels
BitField<25, 1, u32> scale_xy; // Shrinks the image horizontally and vertically, blending the extra pixels
BitField<24, 2, ScalingMode> scaling; // Determines the scaling mode of the transfer
};
INSERT_PADDING_WORDS(0x1);