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52 | |
52 | |
53 | # define trY 0x30 |
53 | # define trY 0x30 |
54 | # define trU 0x11 |
54 | # define trU 0x11 |
55 | # define trV 0x10 |
55 | # define trV 0x10 |
56 | # define trA 0x40 |
56 | # define trA 0x40 |
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57 | |
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58 | static int32_t |
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59 | udiff (uint32_t a, uint32_t b) |
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60 | { |
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61 | return a > b ? a - b : b - a; |
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62 | |
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63 | } |
57 | |
64 | |
58 | static inline pixel lerp (pixel c1, int w1, pixel c2, int w2, pixel c3, int w3, int shift) |
65 | static inline pixel lerp (pixel c1, int w1, pixel c2, int w2, pixel c3, int w3, int shift) |
59 | { |
66 | { |
60 | #if 0 |
67 | #if 0 |
61 | if (!(c1 >> Ashift) & Cmask) w1 = 0; |
68 | if (!(c1 >> Ashift) & Cmask) w1 = 0; |
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180 | static inline bool Diff (pixel w1, pixel w2) |
187 | static inline bool Diff (pixel w1, pixel w2) |
181 | { |
188 | { |
182 | pixel YUV1 = RGBAtoYUVA (w1); |
189 | pixel YUV1 = RGBAtoYUVA (w1); |
183 | pixel YUV2 = RGBAtoYUVA (w2); |
190 | pixel YUV2 = RGBAtoYUVA (w2); |
184 | |
191 | |
185 | return ((abs (((YUV1 >> Rshift) & Cmask) - ((YUV2 >> Rshift) & Cmask)) > trY) || |
192 | return ((udiff ((YUV1 >> Rshift) & Cmask, (YUV2 >> Rshift) & Cmask) > trY) || |
186 | (abs (((YUV1 >> Gshift) & Cmask) - ((YUV2 >> Gshift) & Cmask)) > trU) || |
193 | (udiff ((YUV1 >> Gshift) & Cmask, (YUV2 >> Gshift) & Cmask) > trU) || |
187 | (abs (((YUV1 >> Bshift) & Cmask) - ((YUV2 >> Bshift) & Cmask)) > trV) || |
194 | (udiff ((YUV1 >> Bshift) & Cmask, (YUV2 >> Bshift) & Cmask) > trV) || |
188 | (abs (((YUV1 >> Ashift) & Cmask) - ((YUV2 >> Ashift) & Cmask)) > trA) ); |
195 | (udiff ((YUV1 >> Ashift) & Cmask, (YUV2 >> Ashift) & Cmask) > trA) ); |
189 | } |
196 | } |
190 | |
197 | |
191 | static void |
198 | static void |
192 | hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) |
199 | hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) |
193 | { |
200 | { |